diff options
| -rw-r--r-- | archival/tar.c | 1836 | ||||
| -rw-r--r-- | busybox.def.h | 8 | ||||
| -rw-r--r-- | cat.c | 28 | ||||
| -rw-r--r-- | coreutils/cat.c | 28 | ||||
| -rw-r--r-- | coreutils/dd.c | 425 | ||||
| -rw-r--r-- | coreutils/pwd.c | 3 | ||||
| -rw-r--r-- | coreutils/sleep.c | 21 | ||||
| -rw-r--r-- | dd.c | 425 | ||||
| -rw-r--r-- | dmesg.c | 127 | ||||
| -rw-r--r-- | dutmp.c | 61 | ||||
| -rw-r--r-- | findutils/grep.c | 144 | ||||
| -rw-r--r-- | grep.c | 144 | ||||
| -rw-r--r-- | init/reboot.c | 8 | ||||
| -rw-r--r-- | kill.c | 203 | ||||
| -rw-r--r-- | miscutils/dutmp.c | 61 | ||||
| -rw-r--r-- | more.c | 79 | ||||
| -rw-r--r-- | procps/kill.c | 203 | ||||
| -rw-r--r-- | pwd.c | 3 | ||||
| -rw-r--r-- | reboot.c | 8 | ||||
| -rw-r--r-- | sleep.c | 21 | ||||
| -rw-r--r-- | tar.c | 1836 | ||||
| -rw-r--r-- | util-linux/dmesg.c | 127 | ||||
| -rw-r--r-- | util-linux/more.c | 79 |
23 files changed, 2840 insertions, 3038 deletions
diff --git a/archival/tar.c b/archival/tar.c index 1a9f842..a5a0fab 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -7,7 +7,7 @@ * This allows creation, extraction, and listing of tar files. * * Permission to distribute this code under the GPL has been granted. - * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com> + * Modified for busybox by Erik Andersen <andersee@debian.org> */ @@ -15,11 +15,11 @@ #ifdef BB_TAR -const char tar_usage[] = -"Create, extract, or list files from a TAR file\n\n" -"usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n" -"\tc=create, x=extract, t=list contents, v=verbose,\n" -"\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"; +const char tar_usage[] = + "Create, extract, or list files from a TAR file\n\n" + "usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n" + "\tc=create, x=extract, t=list contents, v=verbose,\n" + "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"; @@ -42,24 +42,23 @@ const char tar_usage[] = * This structure is always embedded in a TAR_BLOCK_SIZE sized block * with zero padding. We only process this information minimally. */ -typedef struct -{ - char name[TAR_NAME_SIZE]; - char mode[8]; - char uid[8]; - char gid[8]; - char size[12]; - char mtime[12]; - char checkSum[8]; - char typeFlag; - char linkName[TAR_NAME_SIZE]; - char magic[6]; - char version[2]; - char uname[32]; - char gname[32]; - char devMajor[8]; - char devMinor[8]; - char prefix[155]; +typedef struct { + char name[TAR_NAME_SIZE]; + char mode[8]; + char uid[8]; + char gid[8]; + char size[12]; + char mtime[12]; + char checkSum[8]; + char typeFlag; + char linkName[TAR_NAME_SIZE]; + char magic[6]; + char version[2]; + char uname[32]; + char gname[32]; + char devMajor[8]; + char devMinor[8]; + char prefix[155]; } TarHeader; #define TAR_MAGIC "ustar" @@ -73,168 +72,162 @@ typedef struct /* * Static data. */ -static int listFlag; -static int extractFlag; -static int createFlag; -static int verboseFlag; -static int tostdoutFlag; - -static int inHeader; -static int badHeader; -static int errorFlag; -static int skipFileFlag; -static int warnedRoot; -static int eofFlag; -static long dataCc; -static int outFd; -static char outName[TAR_NAME_SIZE]; +static int listFlag; +static int extractFlag; +static int createFlag; +static int verboseFlag; +static int tostdoutFlag; + +static int inHeader; +static int badHeader; +static int errorFlag; +static int skipFileFlag; +static int warnedRoot; +static int eofFlag; +static long dataCc; +static int outFd; +static char outName[TAR_NAME_SIZE]; /* * Static data associated with the tar file. */ -static const char * tarName; -static int tarFd; -static dev_t tarDev; -static ino_t tarInode; +static const char *tarName; +static int tarFd; +static dev_t tarDev; +static ino_t tarInode; /* * Local procedures to restore files from a tar file. */ -static void readTarFile(int fileCount, char ** fileTable); -static void readData(const char * cp, int count); -static void createPath(const char * name, int mode); -static long getOctal(const char * cp, int len); +static void readTarFile (int fileCount, char **fileTable); +static void readData (const char *cp, int count); +static void createPath (const char *name, int mode); +static long getOctal (const char *cp, int len); -static void readHeader(const TarHeader * hp, - int fileCount, char ** fileTable); +static void readHeader (const TarHeader * hp, + int fileCount, char **fileTable); /* * Local procedures to save files into a tar file. */ -static void saveFile(const char * fileName, int seeLinks); +static void saveFile (const char *fileName, int seeLinks); -static void saveRegularFile(const char * fileName, - const struct stat * statbuf); +static void saveRegularFile (const char *fileName, + const struct stat *statbuf); -static void saveDirectory(const char * fileName, - const struct stat * statbuf); +static void saveDirectory (const char *fileName, + const struct stat *statbuf); -static int wantFileName(const char * fileName, - int fileCount, char ** fileTable); +static int wantFileName (const char *fileName, + int fileCount, char **fileTable); -static void writeHeader(const char * fileName, - const struct stat * statbuf); +static void writeHeader (const char *fileName, const struct stat *statbuf); -static void writeTarFile(int fileCount, char ** fileTable); -static void writeTarBlock(const char * buf, int len); -static int putOctal(char * cp, int len, long value); +static void writeTarFile (int fileCount, char **fileTable); +static void writeTarBlock (const char *buf, int len); +static int putOctal (char *cp, int len, long value); -extern int -tar_main(int argc, char ** argv) +extern int tar_main (int argc, char **argv) { - const char * options; - - argc--; - argv++; - - if (argc < 1) - { - fprintf(stderr, "%s", tar_usage); - return 1; - } - - - errorFlag = FALSE; - extractFlag = FALSE; - createFlag = FALSE; - listFlag = FALSE; - verboseFlag = FALSE; - tostdoutFlag = FALSE; - tarName = NULL; - tarDev = 0; - tarInode = 0; - tarFd = -1; - - /* - * Parse the options. - */ - options = *argv++; - argc--; - - if (**argv == '-') { - for (; *options; options++) - { - switch (*options) - { - case 'f': - if (tarName != NULL) - { - fprintf(stderr, "Only one 'f' option allowed\n"); - - return 1; - } - - tarName = *argv++; - argc--; - - break; + const char *options; + + argc--; + argv++; + + if (argc < 1) { + fprintf (stderr, "%s", tar_usage); + exit (FALSE); + } + + + errorFlag = FALSE; + extractFlag = FALSE; + createFlag = FALSE; + listFlag = FALSE; + verboseFlag = FALSE; + tostdoutFlag = FALSE; + tarName = NULL; + tarDev = 0; + tarInode = 0; + tarFd = -1; + + /* + * Parse the options. + */ + options = *argv++; + argc--; + + if (**argv == '-') { + for (; *options; options++) { + switch (*options) { + case 'f': + if (tarName != NULL) { + fprintf (stderr, "Only one 'f' option allowed\n"); + + exit (FALSE); + } - case 't': - listFlag = TRUE; - break; + tarName = *argv++; + argc--; - case 'x': - extractFlag = TRUE; - break; + break; - case 'c': - createFlag = TRUE; - break; + case 't': + listFlag = TRUE; + break; - case 'v': - verboseFlag = TRUE; - break; + case 'x': + extractFlag = TRUE; + break; - case 'O': - tostdoutFlag = TRUE; - break; + case 'c': + createFlag = TRUE; + break; - case '-': - break; + case 'v': + verboseFlag = TRUE; + break; - default: - fprintf(stderr, "Unknown tar flag '%c'\n", *options); + case 'O': + tostdoutFlag = TRUE; + break; - return 1; - } - } - } + case '-': + break; - /* - * Validate the options. - */ - if (extractFlag + listFlag + createFlag != 1) - { - fprintf(stderr, "Exactly one of 'c', 'x' or 't' must be specified\n"); + default: + fprintf (stderr, "Unknown tar flag '%c'\n", *options); - return 1; + exit (FALSE); + } } - - /* - * Do the correct type of action supplying the rest of the - * command line arguments as the list of files to process. - */ - if (createFlag) - writeTarFile(argc, argv); - else - readTarFile(argc, argv); - if (errorFlag) - fprintf(stderr, "\n"); - return( errorFlag); + } + + /* + * Validate the options. + */ + if (extractFlag + listFlag + createFlag != 1) { + fprintf (stderr, + "Exactly one of 'c', 'x' or 't' must be specified\n"); + + exit (FALSE); + } + + /* + * Do the correct type of action supplying the rest of the + * command line arguments as the list of files to process. + */ + if (createFlag) + writeTarFile (argc, argv); + else + readTarFile (argc, argv); + if (errorFlag) + fprintf (stderr, "\n"); + exit (errorFlag); } @@ -242,128 +235,119 @@ tar_main(int argc, char ** argv) * Read a tar file and extract or list the specified files within it. * If the list is empty than all files are extracted or listed. */ -static void -readTarFile(int fileCount, char ** fileTable) +static void readTarFile (int fileCount, char **fileTable) { - const char * cp; - int cc; - int inCc; - int blockSize; - char buf[BUF_SIZE]; - - skipFileFlag = FALSE; - badHeader = FALSE; - warnedRoot = FALSE; - eofFlag = FALSE; - inHeader = TRUE; - inCc = 0; - dataCc = 0; - outFd = -1; - blockSize = sizeof(buf); - cp = buf; - - /* - * Open the tar file for reading. + const char *cp; + int cc; + int inCc; + int blockSize; + char buf[BUF_SIZE]; + + skipFileFlag = FALSE; + badHeader = FALSE; + warnedRoot = FALSE; + eofFlag = FALSE; + inHeader = TRUE; + inCc = 0; + dataCc = 0; + outFd = -1; + blockSize = sizeof (buf); + cp = buf; + + /* + * Open the tar file for reading. + */ + if ((tarName == NULL) || !strcmp (tarName, "-")) { + tarFd = STDIN; + } else + tarFd = open (tarName, O_RDONLY); + + if (tarFd < 0) { + perror (tarName); + errorFlag = TRUE; + return; + } + + /* + * Read blocks from the file until an end of file header block + * has been seen. (A real end of file from a read is an error.) + */ + while (!eofFlag) { + /* + * Read the next block of data if necessary. + * This will be a large block if possible, which we will + * then process in the small tar blocks. */ - if ( (tarName==NULL) || !strcmp( tarName, "-") ) { - tarFd = STDIN; - } - else - tarFd = open(tarName, O_RDONLY); + if (inCc <= 0) { + cp = buf; + inCc = fullRead (tarFd, buf, blockSize); - if (tarFd < 0) - { - perror(tarName); + if (inCc < 0) { + perror (tarName); errorFlag = TRUE; - return; + goto done; + } + + if (inCc == 0) { + fprintf (stderr, + "Unexpected end of file from \"%s\"", tarName); + errorFlag = TRUE; + goto done; + } } - /* - * Read blocks from the file until an end of file header block - * has been seen. (A real end of file from a read is an error.) + /* + * If we are expecting a header block then examine it. */ - while (!eofFlag) - { - /* - * Read the next block of data if necessary. - * This will be a large block if possible, which we will - * then process in the small tar blocks. - */ - if (inCc <= 0) - { - cp = buf; - inCc = fullRead(tarFd, buf, blockSize); - - if (inCc < 0) - { - perror(tarName); - errorFlag=TRUE; - goto done; - } - - if (inCc == 0) - { - fprintf(stderr, - "Unexpected end of file from \"%s\"", - tarName); - errorFlag=TRUE; - goto done; - } - } + if (inHeader) { + readHeader ((const TarHeader *) cp, fileCount, fileTable); - /* - * If we are expecting a header block then examine it. - */ - if (inHeader) - { - readHeader((const TarHeader *) cp, fileCount, fileTable); + cp += TAR_BLOCK_SIZE; + inCc -= TAR_BLOCK_SIZE; - cp += TAR_BLOCK_SIZE; - inCc -= TAR_BLOCK_SIZE; - - continue; - } - - /* - * We are currently handling the data for a file. - * Process the minimum of the amount of data we have available - * and the amount left to be processed for the file. - */ - cc = inCc; - - if (cc > dataCc) - cc = dataCc; - - readData(cp, cc); - - /* - * If the amount left isn't an exact multiple of the tar block - * size then round it up to the next block boundary since there - * is padding at the end of the file. - */ - if (cc % TAR_BLOCK_SIZE) - cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE); - - cp += cc; - inCc -= cc; + continue; } -done: - /* - * Close the tar file if needed. + /* + * We are currently handling the data for a file. + * Process the minimum of the amount of data we have available + * and the amount left to be processed for the file. */ - if ((tarFd >= 0) && (close(tarFd) < 0)) - perror(tarName); + cc = inCc; + + if (cc > dataCc) + cc = dataCc; - /* - * Close the output file if needed. - * This is only done here on a previous error and so no - * message is required on errors. + readData (cp, cc); + + /* + * If the amount left isn't an exact multiple of the tar block + * size then round it up to the next block boundary since there + * is padding at the end of the file. */ - if (tostdoutFlag==FALSE) { - if (outFd >= 0) - (void) close(outFd); - } + if (cc % TAR_BLOCK_SIZE) + cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE); + + cp += cc; + inCc -= cc; + } + + done: + /* + * Close the tar file if needed. + */ + if ((tarFd >= 0) && (close (tarFd) < 0)) + perror (tarName); + + /* + * Close the output file if needed. + * This is only done here on a previous error and so no + * message is required on errors. + */ + if (tostdoutFlag == FALSE) { + if (outFd >= 0) + (void) close (outFd); + } } @@ -373,332 +357,307 @@ done: * the end of the tar file. */ static void -readHeader(const TarHeader * hp, int fileCount, char ** fileTable) +readHeader (const TarHeader * hp, int fileCount, char **fileTable) { - int mode; - int uid; - int gid; - int checkSum; - long size; - time_t mtime; - const char * name; - int cc; - int hardLink; - int softLink; - - /* - * If the block is completely empty, then this is the end of the - * archive file. If the name is null, then just skip this header. - */ - name = hp->name; - - if (*name == '\0') - { - for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) - { - if (*name++) - return; - } - - eofFlag = TRUE; - + int mode; + int uid; + int gid; + int checkSum; + long size; + time_t mtime; + const char *name; + int cc; + int hardLink; + int softLink; + + /* + * If the block is completely empty, then this is the end of the + * archive file. If the name is null, then just skip this header. + */ + name = hp->name; + + if (*name == '\0') { + for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) { + if (*name++) return; } - /* - * There is another file in the archive to examine. - * Extract the encoded information and check it. - */ - mode = getOctal(hp->mode, sizeof(hp->mode)); - uid = getOctal(hp->uid, sizeof(hp->uid)); - gid = getOctal(hp->gid, sizeof(hp->gid)); - size = getOctal(hp->size, sizeof(hp->size)); - mtime = getOctal(hp->mtime, sizeof(hp->mtime)); - checkSum = getOctal(hp->checkSum, sizeof(hp->checkSum)); + eofFlag = TRUE; - if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0)) - { - if (!badHeader) - fprintf(stderr, "Bad tar header, skipping\n"); + return; + } - badHeader = TRUE; + /* + * There is another file in the archive to examine. + * Extract the encoded information and check it. + */ + mode = getOctal (hp->mode, sizeof (hp->mode)); + uid = getOctal (hp->uid, sizeof (hp->uid)); + gid = getOctal (hp->gid, sizeof (hp->gid)); + size = getOctal (hp->size, sizeof (hp->size)); + mtime = getOctal (hp->mtime, sizeof (hp->mtime)); + checkSum = getOctal (hp->checkSum, sizeof (hp->checkSum)); - return; - } + if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0)) { + if (!badHeader) + fprintf (stderr, "Bad tar header, skipping\n"); - badHeader = FALSE; - skipFileFlag = FALSE; + badHeader = TRUE; - /* - * Check for the file modes. - */ - hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) || + return; + } + + badHeader = FALSE; + skipFileFlag = FALSE; + + /* + * Check for the file modes. + */ + hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) || (hp->typeFlag == TAR_TYPE_HARD_LINK - '0')); - softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) || + softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) || (hp->typeFlag == TAR_TYPE_SOFT_LINK - '0')); - /* - * Check for a directory or a regular file. - */ - if (name[strlen(name) - 1] == '/') - mode |= S_IFDIR; - else if ((mode & S_IFMT) == 0) - mode |= S_IFREG; - - /* - * Check for absolute paths in the file. - * If we find any, then warn the user and make them relative. - */ - if (*name == '/') - { - while (*name == '/') - name++; - - if (!warnedRoot) - { - fprintf(stderr, - "Absolute path detected, removing leading slashes\n"); - } - - warnedRoot = TRUE; + /* + * Check for a directory or a regular file. + */ + if (name[strlen (name) - 1] == '/') + mode |= S_IFDIR; + else if ((mode & S_IFMT) == 0) + mode |= S_IFREG; + + /* + * Check for absolute paths in the file. + * If we find any, then warn the user and make them relative. + */ + if (*name == '/') { + while (*name == '/') + name++; + + if (!warnedRoot) { + fprintf (stderr, + "Absolute path detected, removing leading slashes\n"); } - /* - * See if we want this file to be restored. - * If not, then set up to skip it. - */ - if (!wantFileName(name, fileCount, fileTable)) - { - if (!hardLink && !softLink && S_ISREG(mode)) - { - inHeader = (size == 0); - dataCc = size; - } - - skipFileFlag = TRUE; - - return; + warnedRoot = TRUE; + } + + /* + * See if we want this file to be restored. + * If not, then set up to skip it. + */ + if (!wantFileName (name, fileCount, fileTable)) { + if (!hardLink && !softLink && S_ISREG (mode)) { + inHeader = (size == 0); + dataCc = size; } - /* - * This file is to be handled. - * If we aren't extracting then just list information about the file. - */ - if (!extractFlag) - { - if (verboseFlag) - { - printf("%s %3d/%-d %9ld %s %s", modeString(mode), - uid, gid, size, timeString(mtime), name); - } - else - printf("%s", name); - - if (hardLink) - printf(" (link to \"%s\")", hp->linkName); - else if (softLink) - printf(" (symlink to \"%s\")", hp->linkName); - else if (S_ISREG(mode)) - { - inHeader = (size == 0); - dataCc = size; - } - - printf("\n"); + skipFileFlag = TRUE; - return; - } + return; + } - /* - * We really want to extract the file. - */ - if (verboseFlag) - printf("x %s\n", name); + /* + * This file is to be handled. + * If we aren't extracting then just list information about the file. + */ + if (!extractFlag) { + if (verboseFlag) { + printf ("%s %3d/%-d %9ld %s %s", modeString (mode), + uid, gid, size, timeString (mtime), name); + } else + printf ("%s", name); if (hardLink) - { - if (link(hp->linkName, name) < 0) - perror(name); - - return; - } - - if (softLink) - { -#ifdef S_ISLNK - if (symlink(hp->linkName, name) < 0) - perror(name); -#else - fprintf(stderr, "Cannot create symbolic links\n"); -#endif - return; + printf (" (link to \"%s\")", hp->linkName); + else if (softLink) + printf (" (symlink to \"%s\")", hp->linkName); + else if (S_ISREG (mode)) { + inHeader = (size == 0); + dataCc = size; } - /* - * If the file is a directory, then just create the path. - */ - if (S_ISDIR(mode)) - { - createPath(name, mode); + printf ("\n"); - return; - } + return; + } - /* - * There is a file to write. - * First create the path to it if necessary with a default permission. - */ - createPath(name, 0777); + /* + * We really want to extract the file. + */ + if (verboseFlag) + printf ("x %s\n", name); - inHeader = (size == 0); - dataCc = size; + if (hardLink) { + if (link (hp->linkName, name) < 0) + perror (name); - /* - * Start the output file. - */ - if (tostdoutFlag==TRUE) - outFd = STDOUT; - else - outFd = open(name, O_WRONLY | O_CREAT | O_TRUNC, mode); - - if (outFd < 0) - { - perror(name); - skipFileFlag = TRUE; - return; - } + return; + } - /* - * If the file is empty, then that's all we need to do. - */ - if (size == 0 && tostdoutFlag == FALSE) - { - (void) close(outFd); - outFd = -1; - } + if (softLink) { +#ifdef S_ISLNK + if (symlink (hp->linkName, name) < 0) + perror (name); +#else + fprintf (stderr, "Cannot create symbolic links\n"); +#endif + return; + } + + /* + * If the file is a directory, then just create the path. + */ + if (S_ISDIR (mode)) { + createPath (name, mode); + + return; + } + + /* + * There is a file to write. + * First create the path to it if necessary with a default permission. + */ + createPath (name, 0777); + + inHeader = (size == 0); + dataCc = size; + + /* + * Start the output file. + */ + if (tostdoutFlag == TRUE) + outFd = STDOUT; + else + outFd = open (name, O_WRONLY | O_CREAT | O_TRUNC, mode); + + if (outFd < 0) { + perror (name); + skipFileFlag = TRUE; + return; + } + + /* + * If the file is empty, then that's all we need to do. + */ + if (size == 0 && tostdoutFlag == FALSE) { + (void) close (outFd); + outFd = -1; + } } /* * Handle a data block of some specified size that was read. */ -static void -readData(const char * cp, int count) +static void readData (const char *cp, int count) { - /* - * Reduce the amount of data left in this file. - * If there is no more data left, then we need to read - * the header again. - */ - dataCc -= count; - - if (dataCc <= 0) - inHeader = TRUE; - - /* - * If we aren't extracting files or this file is being - * skipped then do nothing more. - */ - if (!extractFlag || skipFileFlag) - return; + /* + * Reduce the amount of data left in this file. + * If there is no more data left, then we need to read + * the header again. + */ + dataCc -= count; + + if (dataCc <= 0) + inHeader = TRUE; - /* - * Write the data to the output file. - */ - if (fullWrite(outFd, cp, count) < 0) - { - perror(outName); - if (tostdoutFlag==FALSE) { - (void) close(outFd); - outFd = -1; - } - skipFileFlag = TRUE; - return; + /* + * If we aren't extracting files or this file is being + * skipped then do nothing more. + */ + if (!extractFlag || skipFileFlag) + return; + + /* + * Write the data to the output file. + */ + if (fullWrite (outFd, cp, count) < 0) { + perror (outName); + if (tostdoutFlag == FALSE) { + (void) close (outFd); + outFd = -1; } + skipFileFlag = TRUE; + return; + } + + /* + * If the write failed, close the file and disable further + * writes to this file. + */ + if (dataCc <= 0 && tostdoutFlag == FALSE) { + if (close (outFd)) + perror (outName); - /* - * If the write failed, close the file and disable further - * writes to this file. - */ - if (dataCc <= 0 && tostdoutFlag==FALSE) - { - if (close(outFd)) - perror(outName); - - outFd = -1; - } + outFd = -1; + } } /* * Write a tar file containing the specified files. */ -static void -writeTarFile(int fileCount, char ** fileTable) +static void writeTarFile (int fileCount, char **fileTable) { - struct stat statbuf; - - /* - * Make sure there is at least one file specified. - */ - if (fileCount <= 0) - { - fprintf(stderr, "No files specified to be saved\n"); - errorFlag=TRUE; - } - - /* - * Create the tar file for writing. - */ - if ( (tarName==NULL) || !strcmp( tarName, "-") ) { - tostdoutFlag = TRUE; - tarFd = STDOUT; - } - else - tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666); - - if (tarFd < 0) - { - perror(tarName); - errorFlag=TRUE; - return; - } - - /* - * Get the device and inode of the tar file for checking later. - */ - if (fstat(tarFd, &statbuf) < 0) - { - perror(tarName); - errorFlag = TRUE; - goto done; - } - - tarDev = statbuf.st_dev; - tarInode = statbuf.st_ino; - - /* - * Append each file name into the archive file. - * Follow symbolic links for these top level file names. - */ - while (!errorFlag && (fileCount-- > 0)) - { - saveFile(*fileTable++, FALSE); - } - - /* - * Now write an empty block of zeroes to end the archive. - */ - writeTarBlock("", 1); - - -done: - /* - * Close the tar file and check for errors if it was opened. - */ - if ( (tostdoutFlag==FALSE) && (tarFd >= 0) && (close(tarFd) < 0)) - perror(tarName); + struct stat statbuf; + + /* + * Make sure there is at least one file specified. + */ + if (fileCount <= 0) { + fprintf (stderr, "No files specified to be saved\n"); + errorFlag = TRUE; + } + + /* + * Create the tar file for writing. + */ + if ((tarName == NULL) || !strcmp (tarName, "-")) { + tostdoutFlag = TRUE; + tarFd = STDOUT; + } else + tarFd = open (tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666); + + if (tarFd < 0) { + perror (tarName); + errorFlag = TRUE; + return; + } + + /* + * Get the device and inode of the tar file for checking later. + */ + if (fstat (tarFd, &statbuf) < 0) { + perror (tarName); + errorFlag = TRUE; + goto done; + } + + tarDev = statbuf.st_dev; + tarInode = statbuf.st_ino; + + /* + * Append each file name into the archive file. + * Follow symbolic links for these top level file names. + */ + while (!errorFlag && (fileCount-- > 0)) { + saveFile (*fileTable++, FALSE); + } + + /* + * Now write an empty block of zeroes to end the archive. + */ + writeTarBlock ("", 1); + + + done: + /* + * Close the tar file and check for errors if it was opened. + */ + if ((tostdoutFlag == FALSE) && (tarFd >= 0) && (close (tarFd) < 0)) + perror (tarName); } @@ -709,76 +668,70 @@ done: * flag indicates whether or not we want to see symbolic links as * they really are, instead of blindly following them. */ -static void -saveFile(const char * fileName, int seeLinks) +static void saveFile (const char *fileName, int seeLinks) { - int status; - int mode; - struct stat statbuf; + int status; + int mode; + struct stat statbuf; - if (verboseFlag) - printf("a %s\n", fileName); + if (verboseFlag) + printf ("a %s\n", fileName); - /* - * Check that the file name will fit in the header. - */ - if (strlen(fileName) >= TAR_NAME_SIZE) - { - fprintf(stderr, "%s: File name is too long\n", fileName); + /* + * Check that the file name will fit in the header. + */ + if (strlen (fileName) >= TAR_NAME_SIZE) { + fprintf (stderr, "%s: File name is too long\n", fileName); - return; - } + return; + } - /* - * Find out about the file. - */ + /* + * Find out about the file. + */ #ifdef S_ISLNK - if (seeLinks) - status = lstat(fileName, &statbuf); - else + if (seeLinks) + status = lstat (fileName, &statbuf); + else #endif - status = stat(fileName, &statbuf); + status = stat (fileName, &statbuf); - if (status < 0) - { - perror(fileName); + if (status < 0) { + perror (fileName); - return; - } + return; + } - /* - * Make sure we aren't trying to save our file into itself. - */ - if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode)) - { - fprintf(stderr, "Skipping saving of archive file itself\n"); + /* + * Make sure we aren't trying to save our file into itself. + */ + if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode)) { + fprintf (stderr, "Skipping saving of archive file itself\n"); - return; - } + return; + } - /* - * Check the type of file. - */ - mode = statbuf.st_mode; + /* + * Check the type of file. + */ + mode = statbuf.st_mode; - if (S_ISDIR(mode)) - { - saveDirectory(fileName, &statbuf); + if (S_ISDIR (mode)) { + saveDirectory (fileName, &statbuf); - return; - } + return; + } - if (S_ISREG(mode)) - { - saveRegularFile(fileName, &statbuf); + if (S_ISREG (mode)) { + saveRegularFile (fileName, &statbuf); - return; - } + return; + } - /* - * The file is a strange type of file, ignore it. - */ - fprintf(stderr, "%s: not a directory or regular file\n", fileName); + /* + * The file is a strange type of file, ignore it. + */ + fprintf (stderr, "%s: not a directory or regular file\n", fileName); } @@ -786,183 +739,173 @@ saveFile(const char * fileName, int seeLinks) * Save a regular file to the tar file. */ static void -saveRegularFile(const char * fileName, const struct stat * statbuf) +saveRegularFile (const char *fileName, const struct stat *statbuf) { - int sawEof; - int fileFd; - int cc; - int dataCount; - long fullDataCount; - char data[TAR_BLOCK_SIZE * 16]; - - /* - * Open the file for reading. + int sawEof; + int fileFd; + int cc; + int dataCount; + long fullDataCount; + char data[TAR_BLOCK_SIZE * 16]; + + /* + * Open the file for reading. + */ + fileFd = open (fileName, O_RDONLY); + + if (fileFd < 0) { + perror (fileName); + + return; + } + + /* + * Write out the header for the file. + */ + writeHeader (fileName, statbuf); + + /* + * Write the data blocks of the file. + * We must be careful to write the amount of data that the stat + * buffer indicated, even if the file has changed size. Otherwise + * the tar file will be incorrect. + */ + fullDataCount = statbuf->st_size; + sawEof = FALSE; + + while (fullDataCount > 0) { + /* + * Get the amount to write this iteration which is + * the minumum of the amount left to write and the + * buffer size. */ - fileFd = open(fileName, O_RDONLY); - - if (fileFd < 0) - { - perror(fileName); + dataCount = sizeof (data); - return; - } + if (dataCount > fullDataCount) + dataCount = (int) fullDataCount; - /* - * Write out the header for the file. + /* + * Read the data from the file if we haven't seen the + * end of file yet. */ - writeHeader(fileName, statbuf); + cc = 0; - /* - * Write the data blocks of the file. - * We must be careful to write the amount of data that the stat - * buffer indicated, even if the file has changed size. Otherwise - * the tar file will be incorrect. - */ - fullDataCount = statbuf->st_size; - sawEof = FALSE; - - while (fullDataCount > 0) - { - /* - * Get the amount to write this iteration which is - * the minumum of the amount left to write and the - * buffer size. - */ - dataCount = sizeof(data); - - if (dataCount > fullDataCount) - dataCount = (int) fullDataCount; - - /* - * Read the data from the file if we haven't seen the - * end of file yet. - */ - cc = 0; - - if (!sawEof) - { - cc = fullRead(fileFd, data, dataCount); - - if (cc < 0) - { - perror(fileName); - - (void) close(fileFd); - errorFlag = TRUE; - - return; - } - - /* - * If the file ended too soon, complain and set - * a flag so we will zero fill the rest of it. - */ - if (cc < dataCount) - { - fprintf(stderr, - "%s: Short read - zero filling", - fileName); - - sawEof = TRUE; - } - } + if (!sawEof) { + cc = fullRead (fileFd, data, dataCount); - /* - * Zero fill the rest of the data if necessary. - */ - if (cc < dataCount) - memset(data + cc, 0, dataCount - cc); + if (cc < 0) { + perror (fileName); - /* - * Write the buffer to the TAR file. - */ - writeTarBlock(data, dataCount); + (void) close (fileFd); + errorFlag = TRUE; - fullDataCount -= dataCount; + return; + } + + /* + * If the file ended too soon, complain and set + * a flag so we will zero fill the rest of it. + */ + if (cc < dataCount) { + fprintf (stderr, + "%s: Short read - zero filling", fileName); + + sawEof = TRUE; + } } - /* - * Close the file. + /* + * Zero fill the rest of the data if necessary. + */ + if (cc < dataCount) + memset (data + cc, 0, dataCount - cc); + + /* + * Write the buffer to the TAR file. */ - if ( (tostdoutFlag==FALSE) && close(fileFd) < 0) - fprintf(stderr, "%s: close: %s\n", fileName, strerror(errno)); + writeTarBlock (data, dataCount); + + fullDataCount -= dataCount; + } + + /* + * Close the file. + */ + if ((tostdoutFlag == FALSE) && close (fileFd) < 0) + fprintf (stderr, "%s: close: %s\n", fileName, strerror (errno)); } /* * Save a directory and all of its files to the tar file. */ -static void -saveDirectory(const char * dirName, const struct stat * statbuf) +static void saveDirectory (const char *dirName, const struct stat *statbuf) { - DIR * dir; - struct dirent * entry; - int needSlash; - char fullName[PATH_LEN]; - - /* - * Construct the directory name as used in the tar file by appending - * a slash character to it. - */ - strcpy(fullName, dirName); - strcat(fullName, "/"); - - /* - * Write out the header for the directory entry. - */ - writeHeader(fullName, statbuf); - - /* - * Open the directory. - */ - dir = opendir(dirName); - - if (dir == NULL) - { - fprintf(stderr, "Cannot read directory \"%s\": %s\n", - dirName, strerror(errno)); - - return; + DIR *dir; + struct dirent *entry; + int needSlash; + char fullName[PATH_LEN]; + + /* + * Construct the directory name as used in the tar file by appending + * a slash character to it. + */ + strcpy (fullName, dirName); + strcat (fullName, "/"); + + /* + * Write out the header for the directory entry. + */ + writeHeader (fullName, statbuf); + + /* + * Open the directory. + */ + dir = opendir (dirName); + + if (dir == NULL) { + fprintf (stderr, "Cannot read directory \"%s\": %s\n", + dirName, strerror (errno)); + + return; + } + + /* + * See if a slash is needed. + */ + needSlash = (*dirName && (dirName[strlen (dirName) - 1] != '/')); + + /* + * Read all of the directory entries and check them, + * except for the current and parent directory entries. + */ + while (!errorFlag && ((entry = readdir (dir)) != NULL)) { + if ((strcmp (entry->d_name, ".") == 0) || + (strcmp (entry->d_name, "..") == 0)) { + continue; } - /* - * See if a slash is needed. + /* + * Build the full path name to the file. */ - needSlash = (*dirName && (dirName[strlen(dirName) - 1] != '/')); + strcpy (fullName, dirName); - /* - * Read all of the directory entries and check them, - * except for the current and parent directory entries. - */ - while (!errorFlag && ((entry = readdir(dir)) != NULL)) - { - if ((strcmp(entry->d_name, ".") == 0) || - (strcmp(entry->d_name, "..") == 0)) - { - continue; - } - - /* - * Build the full path name to the file. - */ - strcpy(fullName, dirName); + if (needSlash) + strcat (fullName, "/"); - if (needSlash) - strcat(fullName, "/"); + strcat (fullName, entry->d_name); - strcat(fullName, entry->d_name); - - /* - * Write this file to the tar file, noticing whether or not - * the file is a symbolic link. - */ - saveFile(fullName, TRUE); - } - - /* - * All done, close the directory. + /* + * Write this file to the tar file, noticing whether or not + * the file is a symbolic link. */ - closedir(dir); + saveFile (fullName, TRUE); + } + + /* + * All done, close the directory. + */ + closedir (dir); } @@ -970,55 +913,54 @@ saveDirectory(const char * dirName, const struct stat * statbuf) * Write a tar header for the specified file name and status. * It is assumed that the file name fits. */ -static void -writeHeader(const char * fileName, const struct stat * statbuf) +static void writeHeader (const char *fileName, const struct stat *statbuf) { - long checkSum; - const unsigned char * cp; - int len; - TarHeader header; - - /* - * Zero the header block in preparation for filling it in. - */ - memset((char *) &header, 0, sizeof(header)); - - /* - * Fill in the header. - */ - strcpy(header.name, fileName); - - strncpy(header.magic, TAR_MAGIC, sizeof(header.magic)); - strncpy(header.version, TAR_VERSION, sizeof(header.version)); - - putOctal(header.mode, sizeof(header.mode), statbuf->st_mode & 0777); - putOctal(header.uid, sizeof(header.uid), statbuf->st_uid); - putOctal(header.gid, sizeof(header.gid), statbuf->st_gid); - putOctal(header.size, sizeof(header.size), statbuf->st_size); - putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime); - - header.typeFlag = TAR_TYPE_REGULAR; - - /* - * Calculate and store the checksum. - * This is the sum of all of the bytes of the header, - * with the checksum field itself treated as blanks. - */ - memset(header.checkSum, ' ', sizeof(header.checkSum)); - - cp = (const unsigned char *) &header; - len = sizeof(header); - checkSum = 0; - - while (len-- > 0) - checkSum += *cp++; - - putOctal(header.checkSum, sizeof(header.checkSum), checkSum); - - /* - * Write the tar header. - */ - writeTarBlock((const char *) &header, sizeof(header)); + long checkSum; + const unsigned char *cp; + int len; + TarHeader header; + + /* + * Zero the header block in preparation for filling it in. + */ + memset ((char *) &header, 0, sizeof (header)); + + /* + * Fill in the header. + */ + strcpy (header.name, fileName); + + strncpy (header.magic, TAR_MAGIC, sizeof (header.magic)); + strncpy (header.version, TAR_VERSION, sizeof (header.version)); + + putOctal (header.mode, sizeof (header.mode), statbuf->st_mode & 0777); + putOctal (header.uid, sizeof (header.uid), statbuf->st_uid); + putOctal (header.gid, sizeof (header.gid), statbuf->st_gid); + putOctal (header.size, sizeof (header.size), statbuf->st_size); + putOctal (header.mtime, sizeof (header.mtime), statbuf->st_mtime); + + header.typeFlag = TAR_TYPE_REGULAR; + + /* + * Calculate and store the checksum. + * This is the sum of all of the bytes of the header, + * with the checksum field itself treated as blanks. + */ + memset (header.checkSum, ' ', sizeof (header.checkSum)); + + cp = (const unsigned char *) &header; + len = sizeof (header); + checkSum = 0; + + while (len-- > 0) + checkSum += *cp++; + + putOctal (header.checkSum, sizeof (header.checkSum), checkSum); + + /* + * Write the tar header. + */ + writeTarBlock ((const char *) &header, sizeof (header)); } @@ -1027,59 +969,56 @@ writeHeader(const char * fileName, const struct stat * statbuf) * The data is always padded out to a multiple of TAR_BLOCK_SIZE. * The errorFlag static variable is set on an error. */ -static void -writeTarBlock(const char * buf, int len) +static void writeTarBlock (const char *buf, int len) { - int partialLength; - int completeLength; - char fullBlock[TAR_BLOCK_SIZE]; - - /* - * If we had a write error before, then do nothing more. - */ - if (errorFlag) - return; - - /* - * Get the amount of complete and partial blocks. - */ - partialLength = len % TAR_BLOCK_SIZE; - completeLength = len - partialLength; - - /* - * Write all of the complete blocks. - */ - if ((completeLength > 0) && !fullWrite(tarFd, buf, completeLength)) - { - perror(tarName); - - errorFlag = TRUE; - - return; - } - - /* - * If there are no partial blocks left, we are done. - */ - if (partialLength == 0) - return; - - /* - * Copy the partial data into a complete block, and pad the rest - * of it with zeroes. - */ - memcpy(fullBlock, buf + completeLength, partialLength); - memset(fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength); - - /* - * Write the last complete block. - */ - if (!fullWrite(tarFd, fullBlock, TAR_BLOCK_SIZE)) - { - perror(tarName); - - errorFlag = TRUE; - } + int partialLength; + int completeLength; + char fullBlock[TAR_BLOCK_SIZE]; + + /* + * If we had a write error before, then do nothing more. + */ + if (errorFlag) + return; + + /* + * Get the amount of complete and partial blocks. + */ + partialLength = len % TAR_BLOCK_SIZE; + completeLength = len - partialLength; + + /* + * Write all of the complete blocks. + */ + if ((completeLength > 0) && !fullWrite (tarFd, buf, completeLength)) { + perror (tarName); + + errorFlag = TRUE; + + return; + } + + /* + * If there are no partial blocks left, we are done. + */ + if (partialLength == 0) + return; + + /* + * Copy the partial data into a complete block, and pad the rest + * of it with zeroes. + */ + memcpy (fullBlock, buf + completeLength, partialLength); + memset (fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength); + + /* + * Write the last complete block. + */ + if (!fullWrite (tarFd, fullBlock, TAR_BLOCK_SIZE)) { + perror (tarName); + + errorFlag = TRUE; + } } @@ -1089,29 +1028,27 @@ writeTarBlock(const char * buf, int len) * while all previous ones get default protections. Errors are not reported * here, as failures to restore files can be reported later. */ -static void -createPath(const char * name, int mode) +static void createPath (const char *name, int mode) { - char * cp; - char * cpOld; - char buf[TAR_NAME_SIZE]; + char *cp; + char *cpOld; + char buf[TAR_NAME_SIZE]; - strcpy(buf, name); + strcpy (buf, name); - cp = strchr(buf, '/'); + cp = strchr (buf, '/'); - while (cp) - { - cpOld = cp; - cp = strchr(cp + 1, '/'); + while (cp) { + cpOld = cp; + cp = strchr (cp + 1, '/'); - *cpOld = '\0'; + *cpOld = '\0'; - if (mkdir(buf, cp ? 0777 : mode) == 0) - printf("Directory \"%s\" created\n", buf); + if (mkdir (buf, cp ? 0777 : mode) == 0) + printf ("Directory \"%s\" created\n", buf); - *cpOld = '/'; - } + *cpOld = '/'; + } } @@ -1120,38 +1057,34 @@ createPath(const char * name, int mode) * spaces on both sides of the number and with an optional null character * at the end. Returns -1 on an illegal format. */ -static long -getOctal(const char * cp, int len) +static long getOctal (const char *cp, int len) { - long val; + long val; - while ((len > 0) && (*cp == ' ')) - { - cp++; - len--; - } + while ((len > 0) && (*cp == ' ')) { + cp++; + len--; + } - if ((len == 0) || !isOctal(*cp)) - return -1; + if ((len == 0) || !isOctal (*cp)) + return -1; - val = 0; + val = 0; - while ((len > 0) && isOctal(*cp)) - { - val = val * 8 + *cp++ - '0'; - len--; - } + while ((len > 0) && isOctal (*cp)) { + val = val * 8 + *cp++ - '0'; + len--; + } - while ((len > 0) && (*cp == ' ')) - { - cp++; - len--; - } + while ((len > 0) && (*cp == ' ')) { + cp++; + len--; + } - if ((len > 0) && *cp) - return -1; + if ((len > 0) && *cp) + return -1; - return val; + return val; } @@ -1160,50 +1093,48 @@ getOctal(const char * cp, int len) * The number is zero and space padded and possibly null padded. * Returns TRUE if successful. */ -static int -putOctal(char * cp, int len, long value) +static int putOctal (char *cp, int len, long value) { - int tempLength; - char * tempString; - char tempBuffer[32]; - - /* - * Create a string of the specified length with an initial space, - * leading zeroes and the octal number, and a trailing null. - */ - tempString = tempBuffer; - - sprintf(tempString, " %0*lo", len - 2, value); - - tempLength = strlen(tempString) + 1; - - /* - * If the string is too large, suppress the leading space. - */ - if (tempLength > len) - { - tempLength--; - tempString++; - } - - /* - * If the string is still too large, suppress the trailing null. - */ - if (tempLength > len) - tempLength--; + int tempLength; + char *tempString; + char tempBuffer[32]; + + /* + * Create a string of the specified length with an initial space, + * leading zeroes and the octal number, and a trailing null. + */ + tempString = tempBuffer; + + sprintf (tempString, " %0*lo", len - 2, value); + + tempLength = strlen (tempString) + 1; + + /* + * If the string is too large, suppress the leading space. + */ + if (tempLength > len) { + tempLength--; + tempString++; + } + + /* + * If the string is still too large, suppress the trailing null. + */ + if (tempLength > len) + tempLength--; + + /* + * If the string is still too large, fail. + */ + if (tempLength > len) + return FALSE; - /* - * If the string is still too large, fail. - */ - if (tempLength > len) - return FALSE; + /* + * Copy the string to the field. + */ + memcpy (cp, tempString, len); - /* - * Copy the string to the field. - */ - memcpy(cp, tempString, len); - - return TRUE; + return TRUE; } @@ -1213,48 +1144,43 @@ putOctal(char * cp, int len, long value) * Returns TRUE if the file is selected. */ static int -wantFileName(const char * fileName, int fileCount, char ** fileTable) +wantFileName (const char *fileName, int fileCount, char **fileTable) { - const char * pathName; - int fileLength; - int pathLength; - - /* - * If there are no files in the list, then the file is wanted. - */ - if (fileCount == 0) - return TRUE; + const char *pathName; + int fileLength; + int pathLength; + + /* + * If there are no files in the list, then the file is wanted. + */ + if (fileCount == 0) + return TRUE; - fileLength = strlen(fileName); + fileLength = strlen (fileName); - /* - * Check each of the test paths. - */ - while (fileCount-- > 0) - { - pathName = *fileTable++; + /* + * Check each of the test paths. + */ + while (fileCount-- > 0) { + pathName = *fileTable++; - pathLength = strlen(pathName); + pathLength = strlen (pathName); - if (fileLength < pathLength) - continue; + if (fileLength < pathLength) + continue; - if (memcmp(fileName, pathName, pathLength) != 0) - continue; + if (memcmp (fileName, pathName, pathLength) != 0) + continue; - if ((fileLength == pathLength) || - (fileName[pathLength] == '/')) - { - return TRUE; - } + if ((fileLength == pathLength) || (fileName[pathLength] == '/')) { + return TRUE; } + } - return FALSE; + return FALSE; } #endif /* END CODE */ - - diff --git a/busybox.def.h b/busybox.def.h index a5c5957..848783b 100644 --- a/busybox.def.h +++ b/busybox.def.h @@ -16,7 +16,7 @@ //#define BB_DESCEND #define BB_DF #define BB_DMESG -//#define BB_DUTMP +#define BB_DUTMP //#define BB_DYADIC #define BB_FALSE //#define BB_FDFLUSH @@ -24,7 +24,7 @@ #define BB_GREP ////#define BB_HALT //#define BB_INIT -//#define BB_KILL +#define BB_KILL ////#define BB_LENGTH //#define BB_LN //#define BB_LOADKMAP @@ -44,10 +44,10 @@ //#define BB_POSTPROCESS //#define BB_PRINTF #define BB_PWD -//#define BB_REBOOT +#define BB_REBOOT //#define BB_RM //#define BB_RMDIR -//#define BB_SLEEP +#define BB_SLEEP ////#define BB_SWAPOFF //#define BB_SWAPON //#define BB_SYNC @@ -22,15 +22,27 @@ #include "internal.h" #include <stdio.h> -const char cat_usage[] = "[file ...]"; -extern int cat_more_main(int argc, char **argv) +static void print_file( FILE *file) { int c; - FILE *file = stdin; + while ((c = getc(file)) != EOF) + putc(c, stdout); + fclose(file); + fflush(stdout); +} + +extern int cat_more_main(int argc, char **argv) +{ + FILE *file; + + if (argc==1) { + print_file( stdin); + exit( TRUE); + } - if ( (argc < 2) || (**(argv+1) == '-') ) { - fprintf(stderr, "Usage: %s %s", *argv, cat_usage); + if ( **(argv+1) == '-' ) { + fprintf(stderr, "Usage: cat [file ...]\n"); exit(FALSE); } argc--; @@ -42,11 +54,7 @@ extern int cat_more_main(int argc, char **argv) perror(*argv); exit(FALSE); } - while ((c = getc(file)) != EOF) - putc(c, stdout); - fclose(file); - fflush(stdout); - + print_file( file); argc--; argv++; } diff --git a/coreutils/cat.c b/coreutils/cat.c index 8718c4d..5c54c49 100644 --- a/coreutils/cat.c +++ b/coreutils/cat.c @@ -22,15 +22,27 @@ #include "internal.h" #include <stdio.h> -const char cat_usage[] = "[file ...]"; -extern int cat_more_main(int argc, char **argv) +static void print_file( FILE *file) { int c; - FILE *file = stdin; + while ((c = getc(file)) != EOF) + putc(c, stdout); + fclose(file); + fflush(stdout); +} + +extern int cat_more_main(int argc, char **argv) +{ + FILE *file; + + if (argc==1) { + print_file( stdin); + exit( TRUE); + } - if ( (argc < 2) || (**(argv+1) == '-') ) { - fprintf(stderr, "Usage: %s %s", *argv, cat_usage); + if ( **(argv+1) == '-' ) { + fprintf(stderr, "Usage: cat [file ...]\n"); exit(FALSE); } argc--; @@ -42,11 +54,7 @@ extern int cat_more_main(int argc, char **argv) perror(*argv); exit(FALSE); } - while ((c = getc(file)) != EOF) - putc(c, stdout); - fclose(file); - fflush(stdout); - + print_file( file); argc--; argv++; } diff --git a/coreutils/dd.c b/coreutils/dd.c index 07f092c..40288fd 100644 --- a/coreutils/dd.c +++ b/coreutils/dd.c @@ -6,302 +6,211 @@ * The "dd" command, originally taken from sash. * * Permission to distribute this code under the GPL has been granted. - * Majorly modified, and bugs fixed for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com> + * Mostly rewritten and bugs fixed for busybox by Erik Andersen <andersee@debian.org> */ #include "internal.h" -#ifdef BB_DD +#include <stdio.h> +#include <fcntl.h> +#include <errno.h> -const char dd_usage[] = -"Copy a file, converting and formatting according to options\n\ +const char dd_usage[] = + "Copy a file, converting and formatting according to options\n\ \n\ usage: [if=name] [of=name] [bs=n] [count=n]\n\ \tif=FILE\tread from FILE instead of stdin\n\ \tof=FILE\twrite to FILE instead of stout\n\ \tbs=n\tread and write N bytes at a time\n\ \tcount=n\tcopy only n input blocks\n\ +\tskip=n\tskip n input blocks\n\ \n\ BYTES may be suffixed: by k for x1024, b for x512, and w for x2.\n"; -#include <stdio.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <time.h> - - -#define PAR_NONE 0 -#define PAR_IF 1 -#define PAR_OF 2 -#define PAR_BS 3 -#define PAR_COUNT 4 -typedef struct +/* + * Read a number with a possible multiplier. + * Returns -1 if the number format is illegal. + */ +static long getNum (const char *cp) { - const char * name; - int value; -} PARAM; + long value; + if (!isDecimal (*cp)) + return -1; -static const PARAM params[] = -{ - {"if", PAR_IF}, - {"of", PAR_OF}, - {"bs", PAR_BS}, - {"count", PAR_COUNT}, - {NULL, PAR_NONE} -}; - + value = 0; -static long getNum(const char * cp); + while (isDecimal (*cp)) + value = value * 10 + *cp++ - '0'; -extern int -dd_main (int argc, char **argv) -{ - const char * str; - const PARAM * par; - const char * inFile; - const char * outFile; - char * cp; - int inFd; - int outFd; - int inCc=0; - int outCc; - int blockSize; - long count; - long intotal; - long outTotal; - unsigned char* buf; - unsigned char localBuf[BUF_SIZE]; - - inFile = NULL; - outFile = NULL; - blockSize = 512; - count = 1; - - - while (--argc > 0) - { - str = *++argv; - cp = strchr(str, '='); - - if (cp == NULL) - { - fprintf(stderr, "Bad dd argument\n"); - goto usage; - } - - *cp++ = '\0'; - - for (par = params; par->name; par++) - { - if (strcmp(str, par->name) == 0) - break; - } - - switch (par->value) - { - case PAR_IF: - if (inFile) - { - fprintf(stderr, "Multiple input files illegal\n"); - goto usage; - } - - //fprintf(stderr, "if=%s\n", cp); - inFile = cp; - break; - - case PAR_OF: - if (outFile) - { - fprintf(stderr, "Multiple output files illegal\n"); - goto usage; - } - - //fprintf(stderr, "of=%s\n", cp); - outFile = cp; - break; - - case PAR_BS: - blockSize = getNum(cp); - //fprintf(stderr, "bs=%d\n", blockSize); - - if (blockSize <= 0) - { - fprintf(stderr, "Bad block size value\n"); - goto usage; - } - - break; - - case PAR_COUNT: - count = getNum(cp); - //fprintf(stderr, "count=%ld\n", count); - - if (count < 0) - { - fprintf(stderr, "Bad count value\n"); - goto usage; - } - - break; - - default: - goto usage; - } - } + switch (*cp++) { + case 'k': + value *= 1024; + break; - buf = localBuf; + case 'b': + value *= 512; + break; - if (blockSize > sizeof(localBuf)) - { - buf = malloc(blockSize); + case 'w': + value *= 2; + break; - if (buf == NULL) - { - fprintf(stderr, "Cannot allocate buffer\n"); - return 1; - } - } + case '\0': + return value; - intotal = 0; - outTotal = 0; + default: + return -1; + } - if (inFile == NULL) - inFd = STDIN; - else - inFd = open(inFile, 0); + if (*cp) + return -1; - if (inFd < 0) - { - perror(inFile); + return value; +} - if (buf != localBuf) - free(buf); - return 1; +extern int dd_main (int argc, char **argv) +{ + const char *inFile; + const char *outFile; + char *cp; + int inFd; + int outFd; + int inCc = 0; + int outCc; + int skipBlocks; + int blockSize; + long count; + long intotal; + long outTotal; + unsigned char *buf; + + inFile = NULL; + outFile = NULL; + blockSize = 512; + skipBlocks = 0; + count = 1; + + + argc--; + argv++; + + /* Parse any options */ + while (argc) { + if (inFile == NULL && (strncmp("if", *argv, 2) == 0)) + inFile=*argv; + else if (outFile == NULL && (strncmp("of", *argv, 2) == 0)) + outFile=*argv; + else if (strncmp("count", *argv, 5) == 0) { + count = getNum (*argv); + if (count <= 0) { + fprintf (stderr, "Bad count value %ld\n", count); + goto usage; + } } - - if (outFile == NULL) - outFd = STDOUT; - else - outFd = creat(outFile, 0666); - - if (outFd < 0) - { - perror(outFile); - close(inFd); - - if (buf != localBuf) - free(buf); - - return 1; + else if (strncmp("bs", *argv, 2) == 0) { + blockSize = getNum(*argv); + if (blockSize <= 0) { + fprintf (stderr, "Bad block size value %d\n", blockSize); + goto usage; + } } + else if (strncmp("skip", *argv, 4) == 0) { + skipBlocks = atoi( *argv); + if (skipBlocks <= 0) { + fprintf (stderr, "Bad skip value %d\n", skipBlocks); + goto usage; + } - while ( outTotal < count*blockSize ) - { - inCc = read(inFd, buf, blockSize); - if (inCc < 0) { - perror(inFile); - goto cleanup; - } - //fprintf(stderr, "read in =%d\n", inCc); - intotal += inCc; - cp = buf; - - - while ( intotal > outTotal ) - { - if (outTotal+inCc > count*blockSize) - inCc=count*blockSize-outTotal; - outCc = write(outFd, cp, inCc); - if (outCc < 0) - { - perror(outFile); - goto cleanup; - } - //fprintf(stderr, "wrote out =%d\n", outCc); - - inCc -= outCc; - cp += outCc; - outTotal += outCc; - //fprintf(stderr, "outTotal=%ld\n", outTotal); - } } + else { + fprintf (stderr, "Got here. argv=%s\n", *argv); + goto usage; - if (inCc < 0) - perror(inFile); - -cleanup: - close(inFd); - - if (close(outFd) < 0) - perror(outFile); - - if (buf != localBuf) - free(buf); - - printf("%ld+%d records in\n", intotal / blockSize, - (intotal % blockSize) != 0); - - printf("%ld+%d records out\n", outTotal / blockSize, - (outTotal % blockSize) != 0); - return 0; -usage: - - fprintf(stderr, "%s", dd_usage); - return 1; -} - - -/* - * Read a number with a possible multiplier. - * Returns -1 if the number format is illegal. - */ -static long -getNum(const char * cp) -{ - long value; - - if (!isDecimal(*cp)) - return -1; - - value = 0; - - while (isDecimal(*cp)) - value = value * 10 + *cp++ - '0'; - - switch (*cp++) - { - case 'k': - value *= 1024; - break; - - case 'b': - value *= 512; - break; - - case 'w': - value *= 2; - break; + argc--; + argv++; + } + } + if ( inFile == NULL || outFile == NULL) + goto usage; + + buf = malloc (blockSize); + if (buf == NULL) { + fprintf (stderr, "Cannot allocate buffer\n"); + return( FALSE); + } + + intotal = 0; + outTotal = 0; + + if (!inFile) + inFd = STDIN; + else + inFd = open (inFile, 0); + + if (inFd < 0) { + perror (inFile); + free (buf); + return( FALSE); + } + + if (!outFile) + outFd = STDOUT; + else + outFd = creat (outFile, 0666); + + if (outFd < 0) { + perror (outFile); + close (inFd); + free (buf); + return( FALSE); + } + + lseek(inFd, skipBlocks*blockSize, SEEK_SET); + while (outTotal < count * blockSize) { + inCc = read (inFd, buf, blockSize); + if (inCc < 0) { + perror (inFile); + goto cleanup; + } + intotal += inCc; + cp = buf; + + while (intotal > outTotal) { + if (outTotal + inCc > count * blockSize) + inCc = count * blockSize - outTotal; + outCc = write (outFd, cp, inCc); + if (outCc < 0) { + perror (outFile); + goto cleanup; + } + + inCc -= outCc; + cp += outCc; + outTotal += outCc; + } + } - case '\0': - return value; + if (inCc < 0) + perror (inFile); - default: - return -1; - } + cleanup: + close (inFd); + close (outFd); + free (buf); - if (*cp) - return -1; + printf ("%ld+%d records in\n", intotal / blockSize, + (intotal % blockSize) != 0); + printf ("%ld+%d records out\n", outTotal / blockSize, + (outTotal % blockSize) != 0); + exit( TRUE); + usage: - return value; + fprintf (stderr, "%s", dd_usage); + exit( FALSE); } -#endif -/* END CODE */ diff --git a/coreutils/pwd.c b/coreutils/pwd.c index 893ed1e..2ad019d 100644 --- a/coreutils/pwd.c +++ b/coreutils/pwd.c @@ -1,12 +1,13 @@ #include "internal.h" #include <stdio.h> +#include <dirent.h> const char pwd_usage[] = "Print the current directory.\n"; extern int pwd_main(int argc, char * * argv) { - char buf[1024]; + char buf[NAME_MAX]; if ( getcwd(buf, sizeof(buf)) == NULL ) { perror("get working directory"); diff --git a/coreutils/sleep.c b/coreutils/sleep.c index e48e14b..53fe5a0 100644 --- a/coreutils/sleep.c +++ b/coreutils/sleep.c @@ -1,15 +1,20 @@ #include "internal.h" #include <stdio.h> -const char sleep_usage[] = "sleep seconds\n" -"\n" -"\tPause program execution for the given number of seconds.\n"; +const char sleep_usage[] = " NUMBER\n" +"Pause for NUMBER seconds.\n"; extern int -sleep_main(struct FileInfo * i, int argc, char * * argv) +sleep_main(int argc, char * * argv) { - if ( sleep(atoi(argv[1])) != 0 ) - return -1; - else - return 0; + if ( (argc < 2) || (**(argv+1) == '-') ) { + fprintf(stderr, "Usage: %s %s", *argv, sleep_usage); + exit(FALSE); + } + + if ( sleep(atoi(*(++argv))) != 0 ) { + perror( "sleep"); + exit (FALSE); + } else + exit (TRUE); } @@ -6,302 +6,211 @@ * The "dd" command, originally taken from sash. * * Permission to distribute this code under the GPL has been granted. - * Majorly modified, and bugs fixed for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com> + * Mostly rewritten and bugs fixed for busybox by Erik Andersen <andersee@debian.org> */ #include "internal.h" -#ifdef BB_DD +#include <stdio.h> +#include <fcntl.h> +#include <errno.h> -const char dd_usage[] = -"Copy a file, converting and formatting according to options\n\ +const char dd_usage[] = + "Copy a file, converting and formatting according to options\n\ \n\ usage: [if=name] [of=name] [bs=n] [count=n]\n\ \tif=FILE\tread from FILE instead of stdin\n\ \tof=FILE\twrite to FILE instead of stout\n\ \tbs=n\tread and write N bytes at a time\n\ \tcount=n\tcopy only n input blocks\n\ +\tskip=n\tskip n input blocks\n\ \n\ BYTES may be suffixed: by k for x1024, b for x512, and w for x2.\n"; -#include <stdio.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <time.h> - - -#define PAR_NONE 0 -#define PAR_IF 1 -#define PAR_OF 2 -#define PAR_BS 3 -#define PAR_COUNT 4 -typedef struct +/* + * Read a number with a possible multiplier. + * Returns -1 if the number format is illegal. + */ +static long getNum (const char *cp) { - const char * name; - int value; -} PARAM; + long value; + if (!isDecimal (*cp)) + return -1; -static const PARAM params[] = -{ - {"if", PAR_IF}, - {"of", PAR_OF}, - {"bs", PAR_BS}, - {"count", PAR_COUNT}, - {NULL, PAR_NONE} -}; - + value = 0; -static long getNum(const char * cp); + while (isDecimal (*cp)) + value = value * 10 + *cp++ - '0'; -extern int -dd_main (int argc, char **argv) -{ - const char * str; - const PARAM * par; - const char * inFile; - const char * outFile; - char * cp; - int inFd; - int outFd; - int inCc=0; - int outCc; - int blockSize; - long count; - long intotal; - long outTotal; - unsigned char* buf; - unsigned char localBuf[BUF_SIZE]; - - inFile = NULL; - outFile = NULL; - blockSize = 512; - count = 1; - - - while (--argc > 0) - { - str = *++argv; - cp = strchr(str, '='); - - if (cp == NULL) - { - fprintf(stderr, "Bad dd argument\n"); - goto usage; - } - - *cp++ = '\0'; - - for (par = params; par->name; par++) - { - if (strcmp(str, par->name) == 0) - break; - } - - switch (par->value) - { - case PAR_IF: - if (inFile) - { - fprintf(stderr, "Multiple input files illegal\n"); - goto usage; - } - - //fprintf(stderr, "if=%s\n", cp); - inFile = cp; - break; - - case PAR_OF: - if (outFile) - { - fprintf(stderr, "Multiple output files illegal\n"); - goto usage; - } - - //fprintf(stderr, "of=%s\n", cp); - outFile = cp; - break; - - case PAR_BS: - blockSize = getNum(cp); - //fprintf(stderr, "bs=%d\n", blockSize); - - if (blockSize <= 0) - { - fprintf(stderr, "Bad block size value\n"); - goto usage; - } - - break; - - case PAR_COUNT: - count = getNum(cp); - //fprintf(stderr, "count=%ld\n", count); - - if (count < 0) - { - fprintf(stderr, "Bad count value\n"); - goto usage; - } - - break; - - default: - goto usage; - } - } + switch (*cp++) { + case 'k': + value *= 1024; + break; - buf = localBuf; + case 'b': + value *= 512; + break; - if (blockSize > sizeof(localBuf)) - { - buf = malloc(blockSize); + case 'w': + value *= 2; + break; - if (buf == NULL) - { - fprintf(stderr, "Cannot allocate buffer\n"); - return 1; - } - } + case '\0': + return value; - intotal = 0; - outTotal = 0; + default: + return -1; + } - if (inFile == NULL) - inFd = STDIN; - else - inFd = open(inFile, 0); + if (*cp) + return -1; - if (inFd < 0) - { - perror(inFile); + return value; +} - if (buf != localBuf) - free(buf); - return 1; +extern int dd_main (int argc, char **argv) +{ + const char *inFile; + const char *outFile; + char *cp; + int inFd; + int outFd; + int inCc = 0; + int outCc; + int skipBlocks; + int blockSize; + long count; + long intotal; + long outTotal; + unsigned char *buf; + + inFile = NULL; + outFile = NULL; + blockSize = 512; + skipBlocks = 0; + count = 1; + + + argc--; + argv++; + + /* Parse any options */ + while (argc) { + if (inFile == NULL && (strncmp("if", *argv, 2) == 0)) + inFile=*argv; + else if (outFile == NULL && (strncmp("of", *argv, 2) == 0)) + outFile=*argv; + else if (strncmp("count", *argv, 5) == 0) { + count = getNum (*argv); + if (count <= 0) { + fprintf (stderr, "Bad count value %ld\n", count); + goto usage; + } } - - if (outFile == NULL) - outFd = STDOUT; - else - outFd = creat(outFile, 0666); - - if (outFd < 0) - { - perror(outFile); - close(inFd); - - if (buf != localBuf) - free(buf); - - return 1; + else if (strncmp("bs", *argv, 2) == 0) { + blockSize = getNum(*argv); + if (blockSize <= 0) { + fprintf (stderr, "Bad block size value %d\n", blockSize); + goto usage; + } } + else if (strncmp("skip", *argv, 4) == 0) { + skipBlocks = atoi( *argv); + if (skipBlocks <= 0) { + fprintf (stderr, "Bad skip value %d\n", skipBlocks); + goto usage; + } - while ( outTotal < count*blockSize ) - { - inCc = read(inFd, buf, blockSize); - if (inCc < 0) { - perror(inFile); - goto cleanup; - } - //fprintf(stderr, "read in =%d\n", inCc); - intotal += inCc; - cp = buf; - - - while ( intotal > outTotal ) - { - if (outTotal+inCc > count*blockSize) - inCc=count*blockSize-outTotal; - outCc = write(outFd, cp, inCc); - if (outCc < 0) - { - perror(outFile); - goto cleanup; - } - //fprintf(stderr, "wrote out =%d\n", outCc); - - inCc -= outCc; - cp += outCc; - outTotal += outCc; - //fprintf(stderr, "outTotal=%ld\n", outTotal); - } } + else { + fprintf (stderr, "Got here. argv=%s\n", *argv); + goto usage; - if (inCc < 0) - perror(inFile); - -cleanup: - close(inFd); - - if (close(outFd) < 0) - perror(outFile); - - if (buf != localBuf) - free(buf); - - printf("%ld+%d records in\n", intotal / blockSize, - (intotal % blockSize) != 0); - - printf("%ld+%d records out\n", outTotal / blockSize, - (outTotal % blockSize) != 0); - return 0; -usage: - - fprintf(stderr, "%s", dd_usage); - return 1; -} - - -/* - * Read a number with a possible multiplier. - * Returns -1 if the number format is illegal. - */ -static long -getNum(const char * cp) -{ - long value; - - if (!isDecimal(*cp)) - return -1; - - value = 0; - - while (isDecimal(*cp)) - value = value * 10 + *cp++ - '0'; - - switch (*cp++) - { - case 'k': - value *= 1024; - break; - - case 'b': - value *= 512; - break; - - case 'w': - value *= 2; - break; + argc--; + argv++; + } + } + if ( inFile == NULL || outFile == NULL) + goto usage; + + buf = malloc (blockSize); + if (buf == NULL) { + fprintf (stderr, "Cannot allocate buffer\n"); + return( FALSE); + } + + intotal = 0; + outTotal = 0; + + if (!inFile) + inFd = STDIN; + else + inFd = open (inFile, 0); + + if (inFd < 0) { + perror (inFile); + free (buf); + return( FALSE); + } + + if (!outFile) + outFd = STDOUT; + else + outFd = creat (outFile, 0666); + + if (outFd < 0) { + perror (outFile); + close (inFd); + free (buf); + return( FALSE); + } + + lseek(inFd, skipBlocks*blockSize, SEEK_SET); + while (outTotal < count * blockSize) { + inCc = read (inFd, buf, blockSize); + if (inCc < 0) { + perror (inFile); + goto cleanup; + } + intotal += inCc; + cp = buf; + + while (intotal > outTotal) { + if (outTotal + inCc > count * blockSize) + inCc = count * blockSize - outTotal; + outCc = write (outFd, cp, inCc); + if (outCc < 0) { + perror (outFile); + goto cleanup; + } + + inCc -= outCc; + cp += outCc; + outTotal += outCc; + } + } - case '\0': - return value; + if (inCc < 0) + perror (inFile); - default: - return -1; - } + cleanup: + close (inFd); + close (outFd); + free (buf); - if (*cp) - return -1; + printf ("%ld+%d records in\n", intotal / blockSize, + (intotal % blockSize) != 0); + printf ("%ld+%d records out\n", outTotal / blockSize, + (outTotal % blockSize) != 0); + exit( TRUE); + usage: - return value; + fprintf (stderr, "%s", dd_usage); + exit( FALSE); } -#endif -/* END CODE */ @@ -14,7 +14,6 @@ #include <linux/unistd.h> #include <stdio.h> -#include <getopt.h> #define __NR_klog __NR_syslog @@ -22,74 +21,78 @@ #include <sys/klog.h> #define klog klogctl #else -static inline _syscall3(int,klog,int,type,char *,b,int,len) -#endif /* __GLIBC__ */ +static inline _syscall3 (int, klog, int, type, char *, b, int, len) +#endif /* __GLIBC__ */ -const char dmesg_usage[] = "dmesg"; -int -dmesg_main(int argc, char * * argv) + +static const char dmesg_usage[] = "dmesg [-c] [-n level]\n"; + +int dmesg_main (int argc, char **argv) { - char buf[4096]; - int i; - int n; - int c; - int level = 0; - int lastc; - int cmd = 3; + char buf[4096]; + int i; + int n; + int level = 0; + int lastc; + int cmd = 3; - while ((c = getopt( argc, argv, "cn:" )) != EOF) { - switch (c) { - case 'c': - cmd = 4; - break; - case 'n': - cmd = 8; - level = atoi(optarg); - break; - case '?': - default: - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } - } - argc -= optind; - argv += optind; - - if (argc > 1) { - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } + argc--; + argv++; - if (cmd == 8) { - n = klog( cmd, NULL, level ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } - exit( 0 ); - } + /* Parse any options */ + while (argc && **argv == '-') { + while (*++(*argv)) + switch (**argv) { + case 'c': + cmd = 4; + break; + case 'n': + cmd = 8; + if (--argc == 0) + goto end; + level = atoi (*(++argv)); + --argc; + ++argv; + break; + default: + goto end; + } + } - n = klog( cmd, buf, sizeof( buf ) ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } + if (cmd == 8) { + n = klog (cmd, NULL, level); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + exit (TRUE); + } - lastc = '\n'; - for (i = 0; i < n; i++) { - if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { - i++; - while (buf[i] >= '0' && buf[i] <= '9') - i++; - if (buf[i] == '>') + n = klog (cmd, buf, sizeof (buf)); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + + lastc = '\n'; + for (i = 0; i < n; i++) { + if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { i++; - } - lastc = buf[i]; - putchar( lastc ); - } - if (lastc != '\n') - putchar( '\n' ); - return 0; + while (buf[i] >= '0' && buf[i] <= '9') + i++; + if (buf[i] == '>') + i++; + } + lastc = buf[i]; + putchar (lastc); + } + if (lastc != '\n') + putchar ('\n'); + exit (TRUE); + + end: + fprintf (stderr, "Usage: %s\n", dmesg_usage); + exit (FALSE); } @@ -9,39 +9,44 @@ * * made against libc6 */ - + #include "internal.h" #include <stdio.h> #include <utmp.h> -const char dutmp_usage[] = "dutmp\n" -"\n" -"\tDump file or stdin utmp file format to stdout, pipe delimited.\n" -"\tdutmp /var/run/utmp\n"; +const char dutmp_usage[] = "dutmp\n" + "\n" + "\tDump file or stdin utmp file format to stdout, pipe delimited.\n" + "\tdutmp /var/run/utmp\n"; -extern int -dutmp_fn(const struct FileInfo * i) +extern int dutmp_fn (int argc, char **argv) { -FILE * f = stdin; -struct utmp * ut = (struct utmp *) malloc(sizeof(struct utmp) ); - - if ( i ) - if (! (f = fopen(i->source, "r"))) { - name_and_error(i->source); - return 1; - } - - while (fread (ut, 1, sizeof(struct utmp), f)) { - //printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", - printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n", - ut->ut_type, ut->ut_pid, ut->ut_line, - ut->ut_id, ut->ut_user, ut->ut_host, - ut->ut_exit.e_termination, ut->ut_exit.e_exit, - ut->ut_session, - ut->ut_tv.tv_sec, ut->ut_tv.tv_usec, - ut->ut_addr); - } - -return 0; + FILE *f = stdin; + struct utmp ut; + + if ((argc < 2) || (**(argv + 1) == '-')) { + fprintf (stderr, "Usage: %s %s\n", *argv, dutmp_usage); + exit (FALSE); + } + + if ( **(++argv) == 0 ) { + f = fopen (*(++argv), "r"); + if (f < 0 ) { + perror (*argv); + exit (FALSE); + } + } + + while (fread (&ut, 1, sizeof (struct utmp), f)) { + // printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", + printf ("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n", + ut.ut_type, ut.ut_pid, ut.ut_line, + ut.ut_id, ut.ut_user, ut.ut_host, + ut.ut_exit.e_termination, ut.ut_exit.e_exit, + ut.ut_session, + ut.ut_tv.tv_sec, ut.ut_tv.tv_usec, ut.ut_addr); + } + + exit (TRUE); } diff --git a/findutils/grep.c b/findutils/grep.c index 52ef6c0..657bb25 100644 --- a/findutils/grep.c +++ b/findutils/grep.c @@ -11,7 +11,6 @@ */ #include "internal.h" -#ifdef BB_GREP #include <stdio.h> #include <dirent.h> @@ -31,7 +30,76 @@ const char grep_usage[] = -static int search (const char *string, const char *word, int ignoreCase); +/* + * See if the specified word is found in the specified string. + */ +static int search (const char *string, const char *word, int ignoreCase) +{ + const char *cp1; + const char *cp2; + int len; + int lowFirst; + int ch1; + int ch2; + + len = strlen (word); + + if (!ignoreCase) { + while (TRUE) { + string = strchr (string, word[0]); + + if (string == NULL) + return FALSE; + + if (memcmp (string, word, len) == 0) + return TRUE; + + string++; + } + } + + /* + * Here if we need to check case independence. + * Do the search by lower casing both strings. + */ + lowFirst = *word; + + if (isupper (lowFirst)) + lowFirst = tolower (lowFirst); + + while (TRUE) { + while (*string && (*string != lowFirst) && + (!isupper (*string) || (tolower (*string) != lowFirst))) { + string++; + } + + if (*string == '\0') + return FALSE; + + cp1 = string; + cp2 = word; + + do { + if (*cp2 == '\0') + return TRUE; + + ch1 = *cp1++; + + if (isupper (ch1)) + ch1 = tolower (ch1); + + ch2 = *cp2++; + + if (isupper (ch2)) + ch2 = tolower (ch2); + + } + while (ch1 == ch2); + + string++; + } + return (TRUE); +} extern int grep_main (int argc, char **argv) @@ -122,76 +190,6 @@ extern int grep_main (int argc, char **argv) } -/* - * See if the specified word is found in the specified string. - */ -static int search (const char *string, const char *word, int ignoreCase) -{ - const char *cp1; - const char *cp2; - int len; - int lowFirst; - int ch1; - int ch2; - - len = strlen (word); - - if (!ignoreCase) { - while (TRUE) { - string = strchr (string, word[0]); - - if (string == NULL) - return FALSE; - - if (memcmp (string, word, len) == 0) - return TRUE; - - string++; - } - } - - /* - * Here if we need to check case independence. - * Do the search by lower casing both strings. - */ - lowFirst = *word; - - if (isupper (lowFirst)) - lowFirst = tolower (lowFirst); - - while (TRUE) { - while (*string && (*string != lowFirst) && - (!isupper (*string) || (tolower (*string) != lowFirst))) { - string++; - } - - if (*string == '\0') - return FALSE; - - cp1 = string; - cp2 = word; - - do { - if (*cp2 == '\0') - return TRUE; - - ch1 = *cp1++; - - if (isupper (ch1)) - ch1 = tolower (ch1); - - ch2 = *cp2++; - - if (isupper (ch2)) - ch2 = tolower (ch2); - - } - while (ch1 == ch2); +/* END CODE */ - string++; - } - return (TRUE); -} -#endif -/* END CODE */ @@ -11,7 +11,6 @@ */ #include "internal.h" -#ifdef BB_GREP #include <stdio.h> #include <dirent.h> @@ -31,7 +30,76 @@ const char grep_usage[] = -static int search (const char *string, const char *word, int ignoreCase); +/* + * See if the specified word is found in the specified string. + */ +static int search (const char *string, const char *word, int ignoreCase) +{ + const char *cp1; + const char *cp2; + int len; + int lowFirst; + int ch1; + int ch2; + + len = strlen (word); + + if (!ignoreCase) { + while (TRUE) { + string = strchr (string, word[0]); + + if (string == NULL) + return FALSE; + + if (memcmp (string, word, len) == 0) + return TRUE; + + string++; + } + } + + /* + * Here if we need to check case independence. + * Do the search by lower casing both strings. + */ + lowFirst = *word; + + if (isupper (lowFirst)) + lowFirst = tolower (lowFirst); + + while (TRUE) { + while (*string && (*string != lowFirst) && + (!isupper (*string) || (tolower (*string) != lowFirst))) { + string++; + } + + if (*string == '\0') + return FALSE; + + cp1 = string; + cp2 = word; + + do { + if (*cp2 == '\0') + return TRUE; + + ch1 = *cp1++; + + if (isupper (ch1)) + ch1 = tolower (ch1); + + ch2 = *cp2++; + + if (isupper (ch2)) + ch2 = tolower (ch2); + + } + while (ch1 == ch2); + + string++; + } + return (TRUE); +} extern int grep_main (int argc, char **argv) @@ -122,76 +190,6 @@ extern int grep_main (int argc, char **argv) } -/* - * See if the specified word is found in the specified string. - */ -static int search (const char *string, const char *word, int ignoreCase) -{ - const char *cp1; - const char *cp2; - int len; - int lowFirst; - int ch1; - int ch2; - - len = strlen (word); - - if (!ignoreCase) { - while (TRUE) { - string = strchr (string, word[0]); - - if (string == NULL) - return FALSE; - - if (memcmp (string, word, len) == 0) - return TRUE; - - string++; - } - } - - /* - * Here if we need to check case independence. - * Do the search by lower casing both strings. - */ - lowFirst = *word; - - if (isupper (lowFirst)) - lowFirst = tolower (lowFirst); - - while (TRUE) { - while (*string && (*string != lowFirst) && - (!isupper (*string) || (tolower (*string) != lowFirst))) { - string++; - } - - if (*string == '\0') - return FALSE; - - cp1 = string; - cp2 = word; - - do { - if (*cp2 == '\0') - return TRUE; - - ch1 = *cp1++; - - if (isupper (ch1)) - ch1 = tolower (ch1); - - ch2 = *cp2++; - - if (isupper (ch2)) - ch2 = tolower (ch2); - - } - while (ch1 == ch2); +/* END CODE */ - string++; - } - return (TRUE); -} -#endif -/* END CODE */ diff --git a/init/reboot.c b/init/reboot.c index 0388fbc..f915205 100644 --- a/init/reboot.c +++ b/init/reboot.c @@ -1,12 +1,8 @@ #include "internal.h" #include <signal.h> -const char reboot_usage[] = "reboot\n" -"\n\t" -"\treboot the system.\n"; - extern int -reboot_main(struct FileInfo * i, int argc, char * * argv) +reboot_main(int argc, char ** argv) { - return kill(1, SIGUSR2); + exit( kill(1, SIGUSR2)); } @@ -4,137 +4,134 @@ #include <unistd.h> #include <signal.h> -const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n"; +const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n"; struct signal_name { - const char * name; - int number; + const char *name; + int number; }; const struct signal_name signames[] = { - { "HUP", SIGHUP }, - { "INT", SIGINT }, - { "QUIT", SIGQUIT }, - { "ILL", SIGILL }, - { "TRAP", SIGTRAP }, - { "ABRT", SIGABRT }, + {"HUP", SIGHUP}, + {"INT", SIGINT}, + {"QUIT", SIGQUIT}, + {"ILL", SIGILL}, + {"TRAP", SIGTRAP}, + {"ABRT", SIGABRT}, #ifndef __alpha__ - { "IOT", SIGIOT }, + {"IOT", SIGIOT}, #endif #if defined(sparc) || defined(__alpha__) - { "EMT", SIGEMT }, + {"EMT", SIGEMT}, #else - { "BUS", SIGBUS }, + {"BUS", SIGBUS}, #endif - { "FPE", SIGFPE }, - { "KILL", SIGKILL }, + {"FPE", SIGFPE}, + {"KILL", SIGKILL}, #if defined(sparc) || defined(__alpha__) - { "BUS", SIGBUS }, + {"BUS", SIGBUS}, #else - { "USR1", SIGUSR1 }, + {"USR1", SIGUSR1}, #endif - { "SEGV", SIGSEGV }, + {"SEGV", SIGSEGV}, #if defined(sparc) || defined(__alpha__) - { "SYS", SIGSYS }, + {"SYS", SIGSYS}, #else - { "USR2", SIGUSR2 }, + {"USR2", SIGUSR2}, #endif - { "PIPE", SIGPIPE }, - { "ALRM", SIGALRM }, - { "TERM", SIGTERM }, + {"PIPE", SIGPIPE}, + {"ALRM", SIGALRM}, + {"TERM", SIGTERM}, #if defined(sparc) || defined(__alpha__) - { "URG", SIGURG }, - { "STOP", SIGSTOP }, - { "TSTP", SIGTSTP }, - { "CONT", SIGCONT }, - { "CHLD", SIGCHLD }, - { "TTIN", SIGTTIN }, - { "TTOU", SIGTTOU }, - { "IO", SIGIO }, + {"URG", SIGURG}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"CONT", SIGCONT}, + {"CHLD", SIGCHLD}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"IO", SIGIO}, # ifndef __alpha__ - { "POLL", SIGIO }, + {"POLL", SIGIO}, # endif - { "XCPU", SIGXCPU }, - { "XFSZ", SIGXFSZ }, - { "VTALRM", SIGVTALRM }, - { "PROF", SIGPROF }, - { "WINCH", SIGWINCH }, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, # ifdef __alpha__ - { "INFO", SIGINFO }, + {"INFO", SIGINFO}, # else - { "LOST", SIGLOST }, + {"LOST", SIGLOST}, # endif - { "USR1", SIGUSR1 }, - { "USR2", SIGUSR2 }, + {"USR1", SIGUSR1}, + {"USR2", SIGUSR2}, #else - { "STKFLT", SIGSTKFLT }, - { "CHLD", SIGCHLD }, - { "CONT", SIGCONT }, - { "STOP", SIGSTOP }, - { "TSTP", SIGTSTP }, - { "TTIN", SIGTTIN }, - { "TTOU", SIGTTOU }, - { "URG", SIGURG }, - { "XCPU", SIGXCPU }, - { "XFSZ", SIGXFSZ }, - { "VTALRM", SIGVTALRM }, - { "PROF", SIGPROF }, - { "WINCH", SIGWINCH }, - { "IO", SIGIO }, - { "POLL", SIGPOLL }, - { "PWR", SIGPWR }, - { "UNUSED", SIGUNUSED }, + {"STKFLT", SIGSTKFLT}, + {"CHLD", SIGCHLD}, + {"CONT", SIGCONT}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"URG", SIGURG}, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, + {"IO", SIGIO}, + {"POLL", SIGPOLL}, + {"PWR", SIGPWR}, + {"UNUSED", SIGUNUSED}, #endif - { 0, 0 } + {0, 0} }; -extern int -kill_main(struct FileInfo * i, int argc, char * * argv) +extern int kill_main (int argc, char **argv) { - int had_error = 0; - int sig = SIGTERM; - if ( argv[1][0] == '-' ) { - if ( argv[1][1] >= '0' && argv[1][1] <= '9' ) { - sig = atoi(&argv[1][1]); - if ( sig < 0 || sig >= NSIG ) { - usage(kill_usage); - exit(-1); - } - } - else { - const struct signal_name * s = signames; - for ( ; ; ) { - if ( strcmp(s->name, &argv[1][1]) == 0 ) { - sig = s->number; - break; - } - s++; - if ( s->name == 0 ) { - usage(kill_usage); - exit(-1); - } - } - } - argv++; - argc--; + int had_error = 0; + int sig = SIGTERM; - } - while ( argc > 1 ) { - int pid; - if ( argv[1][0] < '0' || argv[1][0] > '9' ) { - usage(kill_usage); - exit(-1); - } - pid = atoi(argv[1]); - if ( kill(pid, sig) != 0 ) { - had_error = 1; - perror(argv[1]); + + + if (argv[1][0] == '-') { + if (argv[1][1] >= '0' && argv[1][1] <= '9') { + sig = atoi (&argv[1][1]); + if (sig < 0 || sig >= NSIG) + goto end; + } else { + const struct signal_name *s = signames; + for (;;) { + if (strcmp (s->name, &argv[1][1]) == 0) { + sig = s->number; + break; } - argv++; - argc--; + s++; + if (s->name == 0) + goto end; + } + } + argv++; + argc--; + + } + while (argc > 1) { + int pid; + if (argv[1][0] < '0' || argv[1][0] > '9') + goto end; + pid = atoi (argv[1]); + if (kill (pid, sig) != 0) { + had_error = 1; + perror (argv[1]); } - if ( had_error ) - return -1; - else - return 0; + argv++; + argc--; + } + if (had_error) { +end: + fprintf(stderr, "Usage: %s\n", kill_usage); + exit ( FALSE); + } + exit (TRUE); } diff --git a/miscutils/dutmp.c b/miscutils/dutmp.c index e92b670..2dad7d4 100644 --- a/miscutils/dutmp.c +++ b/miscutils/dutmp.c @@ -9,39 +9,44 @@ * * made against libc6 */ - + #include "internal.h" #include <stdio.h> #include <utmp.h> -const char dutmp_usage[] = "dutmp\n" -"\n" -"\tDump file or stdin utmp file format to stdout, pipe delimited.\n" -"\tdutmp /var/run/utmp\n"; +const char dutmp_usage[] = "dutmp\n" + "\n" + "\tDump file or stdin utmp file format to stdout, pipe delimited.\n" + "\tdutmp /var/run/utmp\n"; -extern int -dutmp_fn(const struct FileInfo * i) +extern int dutmp_fn (int argc, char **argv) { -FILE * f = stdin; -struct utmp * ut = (struct utmp *) malloc(sizeof(struct utmp) ); - - if ( i ) - if (! (f = fopen(i->source, "r"))) { - name_and_error(i->source); - return 1; - } - - while (fread (ut, 1, sizeof(struct utmp), f)) { - //printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", - printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n", - ut->ut_type, ut->ut_pid, ut->ut_line, - ut->ut_id, ut->ut_user, ut->ut_host, - ut->ut_exit.e_termination, ut->ut_exit.e_exit, - ut->ut_session, - ut->ut_tv.tv_sec, ut->ut_tv.tv_usec, - ut->ut_addr); - } - -return 0; + FILE *f = stdin; + struct utmp ut; + + if ((argc < 2) || (**(argv + 1) == '-')) { + fprintf (stderr, "Usage: %s %s\n", *argv, dutmp_usage); + exit (FALSE); + } + + if ( **(++argv) == 0 ) { + f = fopen (*(++argv), "r"); + if (f < 0 ) { + perror (*argv); + exit (FALSE); + } + } + + while (fread (&ut, 1, sizeof (struct utmp), f)) { + // printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", + printf ("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n", + ut.ut_type, ut.ut_pid, ut.ut_line, + ut.ut_id, ut.ut_user, ut.ut_host, + ut.ut_exit.e_termination, ut.ut_exit.e_exit, + ut.ut_session, + ut.ut_tv.tv_sec, ut.ut_tv.tv_usec, ut.ut_addr); + } + + exit (TRUE); } @@ -19,27 +19,48 @@ * */ + +/* Turning this off makes things a bit smaller (and less pretty) */ +#define BB_MORE_TERM + + + #include "internal.h" #include <stdio.h> #include <signal.h> + const char more_usage[] = "[file ...]"; -//#define ERASE_STUFF + +#ifdef BB_MORE_TERM + #include <termios.h> + #include <signal.h> + #include <sys/ioctl.h> + + FILE *cin; + struct termios initial_settings, new_settings; + + void gotsig(int sig) { + tcsetattr(fileno(cin), TCSANOW, &initial_settings); + exit( TRUE); + } +#endif extern int more_main(int argc, char **argv) { - int c, lines=0; + int c, lines=0, input; int next_page=0, rows = 24; -#ifdef ERASE_STUFF - int cols=79; +#ifdef BB_MORE_TERM + int cols; + struct winsize win; #endif struct stat st; FILE *file = stdin; if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) { fprintf(stderr, "Usage: %s %s", *argv, more_usage); - return(FALSE); + exit(FALSE); } argc--; argv++; @@ -48,23 +69,47 @@ extern int more_main(int argc, char **argv) file = fopen(*argv, "r"); if (file == NULL) { perror("Can't open file"); - return(FALSE); + exit(FALSE); } fstat(fileno(file), &st); fprintf(stderr, "hi\n"); +#ifdef BB_MORE_TERM + cin = fopen("/dev/tty", "r"); + tcgetattr(fileno(cin),&initial_settings); + new_settings = initial_settings; + new_settings.c_lflag &= ~ICANON; + new_settings.c_lflag &= ~ECHO; + tcsetattr(fileno(cin), TCSANOW, &new_settings); + + (void) signal(SIGINT, gotsig); + + ioctl(STDOUT_FILENO, TIOCGWINSZ, &win); + if (win.ws_row > 4) rows = win.ws_row - 2; + if (win.ws_col > 0) cols = win.ws_col - 1; + + +#endif while ((c = getc(file)) != EOF) { if ( next_page ) { int len=0; next_page = 0; lines=0; - len = fprintf(stdout, "--More-- (%d%% of %ld bytes)", + len = fprintf(stdout, "--More-- (%d%% of %ld bytes)%s", (int) (100*( (double) ftell(file) / (double) st.st_size )), - st.st_size); + st.st_size, +#ifdef BB_MORE_TERM + "" +#else + "\n" +#endif + ); + fflush(stdout); - getc( stdin); -#ifdef ERASE_STUFF - /* Try to erase the "More" message */ + input = getc( stdin); + +#ifdef BB_MORE_TERM + /* Erase the "More" message */ while(len-- > 0) putc('\b', stdout); while(len++ < cols) @@ -73,7 +118,12 @@ extern int more_main(int argc, char **argv) putc('\b', stdout); fflush(stdout); #endif + } + if (input=='q') + goto end; + if (input==' ' && c == '\n' ) + next_page = 1; if ( c == '\n' && ++lines == (rows + 1) ) next_page = 1; putc(c, stdout); @@ -84,7 +134,10 @@ extern int more_main(int argc, char **argv) argc--; argv++; } - return(TRUE); +end: +#ifdef BB_MORE_TERM + gotsig(0); +#endif + exit(TRUE); } - diff --git a/procps/kill.c b/procps/kill.c index da025fa..58dc8a9 100644 --- a/procps/kill.c +++ b/procps/kill.c @@ -4,137 +4,134 @@ #include <unistd.h> #include <signal.h> -const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n"; +const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n"; struct signal_name { - const char * name; - int number; + const char *name; + int number; }; const struct signal_name signames[] = { - { "HUP", SIGHUP }, - { "INT", SIGINT }, - { "QUIT", SIGQUIT }, - { "ILL", SIGILL }, - { "TRAP", SIGTRAP }, - { "ABRT", SIGABRT }, + {"HUP", SIGHUP}, + {"INT", SIGINT}, + {"QUIT", SIGQUIT}, + {"ILL", SIGILL}, + {"TRAP", SIGTRAP}, + {"ABRT", SIGABRT}, #ifndef __alpha__ - { "IOT", SIGIOT }, + {"IOT", SIGIOT}, #endif #if defined(sparc) || defined(__alpha__) - { "EMT", SIGEMT }, + {"EMT", SIGEMT}, #else - { "BUS", SIGBUS }, + {"BUS", SIGBUS}, #endif - { "FPE", SIGFPE }, - { "KILL", SIGKILL }, + {"FPE", SIGFPE}, + {"KILL", SIGKILL}, #if defined(sparc) || defined(__alpha__) - { "BUS", SIGBUS }, + {"BUS", SIGBUS}, #else - { "USR1", SIGUSR1 }, + {"USR1", SIGUSR1}, #endif - { "SEGV", SIGSEGV }, + {"SEGV", SIGSEGV}, #if defined(sparc) || defined(__alpha__) - { "SYS", SIGSYS }, + {"SYS", SIGSYS}, #else - { "USR2", SIGUSR2 }, + {"USR2", SIGUSR2}, #endif - { "PIPE", SIGPIPE }, - { "ALRM", SIGALRM }, - { "TERM", SIGTERM }, + {"PIPE", SIGPIPE}, + {"ALRM", SIGALRM}, + {"TERM", SIGTERM}, #if defined(sparc) || defined(__alpha__) - { "URG", SIGURG }, - { "STOP", SIGSTOP }, - { "TSTP", SIGTSTP }, - { "CONT", SIGCONT }, - { "CHLD", SIGCHLD }, - { "TTIN", SIGTTIN }, - { "TTOU", SIGTTOU }, - { "IO", SIGIO }, + {"URG", SIGURG}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"CONT", SIGCONT}, + {"CHLD", SIGCHLD}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"IO", SIGIO}, # ifndef __alpha__ - { "POLL", SIGIO }, + {"POLL", SIGIO}, # endif - { "XCPU", SIGXCPU }, - { "XFSZ", SIGXFSZ }, - { "VTALRM", SIGVTALRM }, - { "PROF", SIGPROF }, - { "WINCH", SIGWINCH }, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, # ifdef __alpha__ - { "INFO", SIGINFO }, + {"INFO", SIGINFO}, # else - { "LOST", SIGLOST }, + {"LOST", SIGLOST}, # endif - { "USR1", SIGUSR1 }, - { "USR2", SIGUSR2 }, + {"USR1", SIGUSR1}, + {"USR2", SIGUSR2}, #else - { "STKFLT", SIGSTKFLT }, - { "CHLD", SIGCHLD }, - { "CONT", SIGCONT }, - { "STOP", SIGSTOP }, - { "TSTP", SIGTSTP }, - { "TTIN", SIGTTIN }, - { "TTOU", SIGTTOU }, - { "URG", SIGURG }, - { "XCPU", SIGXCPU }, - { "XFSZ", SIGXFSZ }, - { "VTALRM", SIGVTALRM }, - { "PROF", SIGPROF }, - { "WINCH", SIGWINCH }, - { "IO", SIGIO }, - { "POLL", SIGPOLL }, - { "PWR", SIGPWR }, - { "UNUSED", SIGUNUSED }, + {"STKFLT", SIGSTKFLT}, + {"CHLD", SIGCHLD}, + {"CONT", SIGCONT}, + {"STOP", SIGSTOP}, + {"TSTP", SIGTSTP}, + {"TTIN", SIGTTIN}, + {"TTOU", SIGTTOU}, + {"URG", SIGURG}, + {"XCPU", SIGXCPU}, + {"XFSZ", SIGXFSZ}, + {"VTALRM", SIGVTALRM}, + {"PROF", SIGPROF}, + {"WINCH", SIGWINCH}, + {"IO", SIGIO}, + {"POLL", SIGPOLL}, + {"PWR", SIGPWR}, + {"UNUSED", SIGUNUSED}, #endif - { 0, 0 } + {0, 0} }; -extern int -kill_main(struct FileInfo * i, int argc, char * * argv) +extern int kill_main (int argc, char **argv) { - int had_error = 0; - int sig = SIGTERM; - if ( argv[1][0] == '-' ) { - if ( argv[1][1] >= '0' && argv[1][1] <= '9' ) { - sig = atoi(&argv[1][1]); - if ( sig < 0 || sig >= NSIG ) { - usage(kill_usage); - exit(-1); - } - } - else { - const struct signal_name * s = signames; - for ( ; ; ) { - if ( strcmp(s->name, &argv[1][1]) == 0 ) { - sig = s->number; - break; - } - s++; - if ( s->name == 0 ) { - usage(kill_usage); - exit(-1); - } - } - } - argv++; - argc--; + int had_error = 0; + int sig = SIGTERM; - } - while ( argc > 1 ) { - int pid; - if ( argv[1][0] < '0' || argv[1][0] > '9' ) { - usage(kill_usage); - exit(-1); - } - pid = atoi(argv[1]); - if ( kill(pid, sig) != 0 ) { - had_error = 1; - perror(argv[1]); + + + if (argv[1][0] == '-') { + if (argv[1][1] >= '0' && argv[1][1] <= '9') { + sig = atoi (&argv[1][1]); + if (sig < 0 || sig >= NSIG) + goto end; + } else { + const struct signal_name *s = signames; + for (;;) { + if (strcmp (s->name, &argv[1][1]) == 0) { + sig = s->number; + break; } - argv++; - argc--; + s++; + if (s->name == 0) + goto end; + } + } + argv++; + argc--; + + } + while (argc > 1) { + int pid; + if (argv[1][0] < '0' || argv[1][0] > '9') + goto end; + pid = atoi (argv[1]); + if (kill (pid, sig) != 0) { + had_error = 1; + perror (argv[1]); } - if ( had_error ) - return -1; - else - return 0; + argv++; + argc--; + } + if (had_error) { +end: + fprintf(stderr, "Usage: %s\n", kill_usage); + exit ( FALSE); + } + exit (TRUE); } @@ -1,12 +1,13 @@ #include "internal.h" #include <stdio.h> +#include <dirent.h> const char pwd_usage[] = "Print the current directory.\n"; extern int pwd_main(int argc, char * * argv) { - char buf[1024]; + char buf[NAME_MAX]; if ( getcwd(buf, sizeof(buf)) == NULL ) { perror("get working directory"); @@ -1,12 +1,8 @@ #include "internal.h" #include <signal.h> -const char reboot_usage[] = "reboot\n" -"\n\t" -"\treboot the system.\n"; - extern int -reboot_main(struct FileInfo * i, int argc, char * * argv) +reboot_main(int argc, char ** argv) { - return kill(1, SIGUSR2); + exit( kill(1, SIGUSR2)); } @@ -1,15 +1,20 @@ #include "internal.h" #include <stdio.h> -const char sleep_usage[] = "sleep seconds\n" -"\n" -"\tPause program execution for the given number of seconds.\n"; +const char sleep_usage[] = " NUMBER\n" +"Pause for NUMBER seconds.\n"; extern int -sleep_main(struct FileInfo * i, int argc, char * * argv) +sleep_main(int argc, char * * argv) { - if ( sleep(atoi(argv[1])) != 0 ) - return -1; - else - return 0; + if ( (argc < 2) || (**(argv+1) == '-') ) { + fprintf(stderr, "Usage: %s %s", *argv, sleep_usage); + exit(FALSE); + } + + if ( sleep(atoi(*(++argv))) != 0 ) { + perror( "sleep"); + exit (FALSE); + } else + exit (TRUE); } @@ -7,7 +7,7 @@ * This allows creation, extraction, and listing of tar files. * * Permission to distribute this code under the GPL has been granted. - * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com> + * Modified for busybox by Erik Andersen <andersee@debian.org> */ @@ -15,11 +15,11 @@ #ifdef BB_TAR -const char tar_usage[] = -"Create, extract, or list files from a TAR file\n\n" -"usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n" -"\tc=create, x=extract, t=list contents, v=verbose,\n" -"\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"; +const char tar_usage[] = + "Create, extract, or list files from a TAR file\n\n" + "usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n" + "\tc=create, x=extract, t=list contents, v=verbose,\n" + "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"; @@ -42,24 +42,23 @@ const char tar_usage[] = * This structure is always embedded in a TAR_BLOCK_SIZE sized block * with zero padding. We only process this information minimally. */ -typedef struct -{ - char name[TAR_NAME_SIZE]; - char mode[8]; - char uid[8]; - char gid[8]; - char size[12]; - char mtime[12]; - char checkSum[8]; - char typeFlag; - char linkName[TAR_NAME_SIZE]; - char magic[6]; - char version[2]; - char uname[32]; - char gname[32]; - char devMajor[8]; - char devMinor[8]; - char prefix[155]; +typedef struct { + char name[TAR_NAME_SIZE]; + char mode[8]; + char uid[8]; + char gid[8]; + char size[12]; + char mtime[12]; + char checkSum[8]; + char typeFlag; + char linkName[TAR_NAME_SIZE]; + char magic[6]; + char version[2]; + char uname[32]; + char gname[32]; + char devMajor[8]; + char devMinor[8]; + char prefix[155]; } TarHeader; #define TAR_MAGIC "ustar" @@ -73,168 +72,162 @@ typedef struct /* * Static data. */ -static int listFlag; -static int extractFlag; -static int createFlag; -static int verboseFlag; -static int tostdoutFlag; - -static int inHeader; -static int badHeader; -static int errorFlag; -static int skipFileFlag; -static int warnedRoot; -static int eofFlag; -static long dataCc; -static int outFd; -static char outName[TAR_NAME_SIZE]; +static int listFlag; +static int extractFlag; +static int createFlag; +static int verboseFlag; +static int tostdoutFlag; + +static int inHeader; +static int badHeader; +static int errorFlag; +static int skipFileFlag; +static int warnedRoot; +static int eofFlag; +static long dataCc; +static int outFd; +static char outName[TAR_NAME_SIZE]; /* * Static data associated with the tar file. */ -static const char * tarName; -static int tarFd; -static dev_t tarDev; -static ino_t tarInode; +static const char *tarName; +static int tarFd; +static dev_t tarDev; +static ino_t tarInode; /* * Local procedures to restore files from a tar file. */ -static void readTarFile(int fileCount, char ** fileTable); -static void readData(const char * cp, int count); -static void createPath(const char * name, int mode); -static long getOctal(const char * cp, int len); +static void readTarFile (int fileCount, char **fileTable); +static void readData (const char *cp, int count); +static void createPath (const char *name, int mode); +static long getOctal (const char *cp, int len); -static void readHeader(const TarHeader * hp, - int fileCount, char ** fileTable); +static void readHeader (const TarHeader * hp, + int fileCount, char **fileTable); /* * Local procedures to save files into a tar file. */ -static void saveFile(const char * fileName, int seeLinks); +static void saveFile (const char *fileName, int seeLinks); -static void saveRegularFile(const char * fileName, - const struct stat * statbuf); +static void saveRegularFile (const char *fileName, + const struct stat *statbuf); -static void saveDirectory(const char * fileName, - const struct stat * statbuf); +static void saveDirectory (const char *fileName, + const struct stat *statbuf); -static int wantFileName(const char * fileName, - int fileCount, char ** fileTable); +static int wantFileName (const char *fileName, + int fileCount, char **fileTable); -static void writeHeader(const char * fileName, - const struct stat * statbuf); +static void writeHeader (const char *fileName, const struct stat *statbuf); -static void writeTarFile(int fileCount, char ** fileTable); -static void writeTarBlock(const char * buf, int len); -static int putOctal(char * cp, int len, long value); +static void writeTarFile (int fileCount, char **fileTable); +static void writeTarBlock (const char *buf, int len); +static int putOctal (char *cp, int len, long value); -extern int -tar_main(int argc, char ** argv) +extern int tar_main (int argc, char **argv) { - const char * options; - - argc--; - argv++; - - if (argc < 1) - { - fprintf(stderr, "%s", tar_usage); - return 1; - } - - - errorFlag = FALSE; - extractFlag = FALSE; - createFlag = FALSE; - listFlag = FALSE; - verboseFlag = FALSE; - tostdoutFlag = FALSE; - tarName = NULL; - tarDev = 0; - tarInode = 0; - tarFd = -1; - - /* - * Parse the options. - */ - options = *argv++; - argc--; - - if (**argv == '-') { - for (; *options; options++) - { - switch (*options) - { - case 'f': - if (tarName != NULL) - { - fprintf(stderr, "Only one 'f' option allowed\n"); - - return 1; - } - - tarName = *argv++; - argc--; - - break; + const char *options; + + argc--; + argv++; + + if (argc < 1) { + fprintf (stderr, "%s", tar_usage); + exit (FALSE); + } + + + errorFlag = FALSE; + extractFlag = FALSE; + createFlag = FALSE; + listFlag = FALSE; + verboseFlag = FALSE; + tostdoutFlag = FALSE; + tarName = NULL; + tarDev = 0; + tarInode = 0; + tarFd = -1; + + /* + * Parse the options. + */ + options = *argv++; + argc--; + + if (**argv == '-') { + for (; *options; options++) { + switch (*options) { + case 'f': + if (tarName != NULL) { + fprintf (stderr, "Only one 'f' option allowed\n"); + + exit (FALSE); + } - case 't': - listFlag = TRUE; - break; + tarName = *argv++; + argc--; - case 'x': - extractFlag = TRUE; - break; + break; - case 'c': - createFlag = TRUE; - break; + case 't': + listFlag = TRUE; + break; - case 'v': - verboseFlag = TRUE; - break; + case 'x': + extractFlag = TRUE; + break; - case 'O': - tostdoutFlag = TRUE; - break; + case 'c': + createFlag = TRUE; + break; - case '-': - break; + case 'v': + verboseFlag = TRUE; + break; - default: - fprintf(stderr, "Unknown tar flag '%c'\n", *options); + case 'O': + tostdoutFlag = TRUE; + break; - return 1; - } - } - } + case '-': + break; - /* - * Validate the options. - */ - if (extractFlag + listFlag + createFlag != 1) - { - fprintf(stderr, "Exactly one of 'c', 'x' or 't' must be specified\n"); + default: + fprintf (stderr, "Unknown tar flag '%c'\n", *options); - return 1; + exit (FALSE); + } } - - /* - * Do the correct type of action supplying the rest of the - * command line arguments as the list of files to process. - */ - if (createFlag) - writeTarFile(argc, argv); - else - readTarFile(argc, argv); - if (errorFlag) - fprintf(stderr, "\n"); - return( errorFlag); + } + + /* + * Validate the options. + */ + if (extractFlag + listFlag + createFlag != 1) { + fprintf (stderr, + "Exactly one of 'c', 'x' or 't' must be specified\n"); + + exit (FALSE); + } + + /* + * Do the correct type of action supplying the rest of the + * command line arguments as the list of files to process. + */ + if (createFlag) + writeTarFile (argc, argv); + else + readTarFile (argc, argv); + if (errorFlag) + fprintf (stderr, "\n"); + exit (errorFlag); } @@ -242,128 +235,119 @@ tar_main(int argc, char ** argv) * Read a tar file and extract or list the specified files within it. * If the list is empty than all files are extracted or listed. */ -static void -readTarFile(int fileCount, char ** fileTable) +static void readTarFile (int fileCount, char **fileTable) { - const char * cp; - int cc; - int inCc; - int blockSize; - char buf[BUF_SIZE]; - - skipFileFlag = FALSE; - badHeader = FALSE; - warnedRoot = FALSE; - eofFlag = FALSE; - inHeader = TRUE; - inCc = 0; - dataCc = 0; - outFd = -1; - blockSize = sizeof(buf); - cp = buf; - - /* - * Open the tar file for reading. + const char *cp; + int cc; + int inCc; + int blockSize; + char buf[BUF_SIZE]; + + skipFileFlag = FALSE; + badHeader = FALSE; + warnedRoot = FALSE; + eofFlag = FALSE; + inHeader = TRUE; + inCc = 0; + dataCc = 0; + outFd = -1; + blockSize = sizeof (buf); + cp = buf; + + /* + * Open the tar file for reading. + */ + if ((tarName == NULL) || !strcmp (tarName, "-")) { + tarFd = STDIN; + } else + tarFd = open (tarName, O_RDONLY); + + if (tarFd < 0) { + perror (tarName); + errorFlag = TRUE; + return; + } + + /* + * Read blocks from the file until an end of file header block + * has been seen. (A real end of file from a read is an error.) + */ + while (!eofFlag) { + /* + * Read the next block of data if necessary. + * This will be a large block if possible, which we will + * then process in the small tar blocks. */ - if ( (tarName==NULL) || !strcmp( tarName, "-") ) { - tarFd = STDIN; - } - else - tarFd = open(tarName, O_RDONLY); + if (inCc <= 0) { + cp = buf; + inCc = fullRead (tarFd, buf, blockSize); - if (tarFd < 0) - { - perror(tarName); + if (inCc < 0) { + perror (tarName); errorFlag = TRUE; - return; + goto done; + } + + if (inCc == 0) { + fprintf (stderr, + "Unexpected end of file from \"%s\"", tarName); + errorFlag = TRUE; + goto done; + } } - /* - * Read blocks from the file until an end of file header block - * has been seen. (A real end of file from a read is an error.) + /* + * If we are expecting a header block then examine it. */ - while (!eofFlag) - { - /* - * Read the next block of data if necessary. - * This will be a large block if possible, which we will - * then process in the small tar blocks. - */ - if (inCc <= 0) - { - cp = buf; - inCc = fullRead(tarFd, buf, blockSize); - - if (inCc < 0) - { - perror(tarName); - errorFlag=TRUE; - goto done; - } - - if (inCc == 0) - { - fprintf(stderr, - "Unexpected end of file from \"%s\"", - tarName); - errorFlag=TRUE; - goto done; - } - } + if (inHeader) { + readHeader ((const TarHeader *) cp, fileCount, fileTable); - /* - * If we are expecting a header block then examine it. - */ - if (inHeader) - { - readHeader((const TarHeader *) cp, fileCount, fileTable); + cp += TAR_BLOCK_SIZE; + inCc -= TAR_BLOCK_SIZE; - cp += TAR_BLOCK_SIZE; - inCc -= TAR_BLOCK_SIZE; - - continue; - } - - /* - * We are currently handling the data for a file. - * Process the minimum of the amount of data we have available - * and the amount left to be processed for the file. - */ - cc = inCc; - - if (cc > dataCc) - cc = dataCc; - - readData(cp, cc); - - /* - * If the amount left isn't an exact multiple of the tar block - * size then round it up to the next block boundary since there - * is padding at the end of the file. - */ - if (cc % TAR_BLOCK_SIZE) - cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE); - - cp += cc; - inCc -= cc; + continue; } -done: - /* - * Close the tar file if needed. + /* + * We are currently handling the data for a file. + * Process the minimum of the amount of data we have available + * and the amount left to be processed for the file. */ - if ((tarFd >= 0) && (close(tarFd) < 0)) - perror(tarName); + cc = inCc; + + if (cc > dataCc) + cc = dataCc; - /* - * Close the output file if needed. - * This is only done here on a previous error and so no - * message is required on errors. + readData (cp, cc); + + /* + * If the amount left isn't an exact multiple of the tar block + * size then round it up to the next block boundary since there + * is padding at the end of the file. */ - if (tostdoutFlag==FALSE) { - if (outFd >= 0) - (void) close(outFd); - } + if (cc % TAR_BLOCK_SIZE) + cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE); + + cp += cc; + inCc -= cc; + } + + done: + /* + * Close the tar file if needed. + */ + if ((tarFd >= 0) && (close (tarFd) < 0)) + perror (tarName); + + /* + * Close the output file if needed. + * This is only done here on a previous error and so no + * message is required on errors. + */ + if (tostdoutFlag == FALSE) { + if (outFd >= 0) + (void) close (outFd); + } } @@ -373,332 +357,307 @@ done: * the end of the tar file. */ static void -readHeader(const TarHeader * hp, int fileCount, char ** fileTable) +readHeader (const TarHeader * hp, int fileCount, char **fileTable) { - int mode; - int uid; - int gid; - int checkSum; - long size; - time_t mtime; - const char * name; - int cc; - int hardLink; - int softLink; - - /* - * If the block is completely empty, then this is the end of the - * archive file. If the name is null, then just skip this header. - */ - name = hp->name; - - if (*name == '\0') - { - for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) - { - if (*name++) - return; - } - - eofFlag = TRUE; - + int mode; + int uid; + int gid; + int checkSum; + long size; + time_t mtime; + const char *name; + int cc; + int hardLink; + int softLink; + + /* + * If the block is completely empty, then this is the end of the + * archive file. If the name is null, then just skip this header. + */ + name = hp->name; + + if (*name == '\0') { + for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) { + if (*name++) return; } - /* - * There is another file in the archive to examine. - * Extract the encoded information and check it. - */ - mode = getOctal(hp->mode, sizeof(hp->mode)); - uid = getOctal(hp->uid, sizeof(hp->uid)); - gid = getOctal(hp->gid, sizeof(hp->gid)); - size = getOctal(hp->size, sizeof(hp->size)); - mtime = getOctal(hp->mtime, sizeof(hp->mtime)); - checkSum = getOctal(hp->checkSum, sizeof(hp->checkSum)); + eofFlag = TRUE; - if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0)) - { - if (!badHeader) - fprintf(stderr, "Bad tar header, skipping\n"); + return; + } - badHeader = TRUE; + /* + * There is another file in the archive to examine. + * Extract the encoded information and check it. + */ + mode = getOctal (hp->mode, sizeof (hp->mode)); + uid = getOctal (hp->uid, sizeof (hp->uid)); + gid = getOctal (hp->gid, sizeof (hp->gid)); + size = getOctal (hp->size, sizeof (hp->size)); + mtime = getOctal (hp->mtime, sizeof (hp->mtime)); + checkSum = getOctal (hp->checkSum, sizeof (hp->checkSum)); - return; - } + if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0)) { + if (!badHeader) + fprintf (stderr, "Bad tar header, skipping\n"); - badHeader = FALSE; - skipFileFlag = FALSE; + badHeader = TRUE; - /* - * Check for the file modes. - */ - hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) || + return; + } + + badHeader = FALSE; + skipFileFlag = FALSE; + + /* + * Check for the file modes. + */ + hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) || (hp->typeFlag == TAR_TYPE_HARD_LINK - '0')); - softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) || + softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) || (hp->typeFlag == TAR_TYPE_SOFT_LINK - '0')); - /* - * Check for a directory or a regular file. - */ - if (name[strlen(name) - 1] == '/') - mode |= S_IFDIR; - else if ((mode & S_IFMT) == 0) - mode |= S_IFREG; - - /* - * Check for absolute paths in the file. - * If we find any, then warn the user and make them relative. - */ - if (*name == '/') - { - while (*name == '/') - name++; - - if (!warnedRoot) - { - fprintf(stderr, - "Absolute path detected, removing leading slashes\n"); - } - - warnedRoot = TRUE; + /* + * Check for a directory or a regular file. + */ + if (name[strlen (name) - 1] == '/') + mode |= S_IFDIR; + else if ((mode & S_IFMT) == 0) + mode |= S_IFREG; + + /* + * Check for absolute paths in the file. + * If we find any, then warn the user and make them relative. + */ + if (*name == '/') { + while (*name == '/') + name++; + + if (!warnedRoot) { + fprintf (stderr, + "Absolute path detected, removing leading slashes\n"); } - /* - * See if we want this file to be restored. - * If not, then set up to skip it. - */ - if (!wantFileName(name, fileCount, fileTable)) - { - if (!hardLink && !softLink && S_ISREG(mode)) - { - inHeader = (size == 0); - dataCc = size; - } - - skipFileFlag = TRUE; - - return; + warnedRoot = TRUE; + } + + /* + * See if we want this file to be restored. + * If not, then set up to skip it. + */ + if (!wantFileName (name, fileCount, fileTable)) { + if (!hardLink && !softLink && S_ISREG (mode)) { + inHeader = (size == 0); + dataCc = size; } - /* - * This file is to be handled. - * If we aren't extracting then just list information about the file. - */ - if (!extractFlag) - { - if (verboseFlag) - { - printf("%s %3d/%-d %9ld %s %s", modeString(mode), - uid, gid, size, timeString(mtime), name); - } - else - printf("%s", name); - - if (hardLink) - printf(" (link to \"%s\")", hp->linkName); - else if (softLink) - printf(" (symlink to \"%s\")", hp->linkName); - else if (S_ISREG(mode)) - { - inHeader = (size == 0); - dataCc = size; - } - - printf("\n"); + skipFileFlag = TRUE; - return; - } + return; + } - /* - * We really want to extract the file. - */ - if (verboseFlag) - printf("x %s\n", name); + /* + * This file is to be handled. + * If we aren't extracting then just list information about the file. + */ + if (!extractFlag) { + if (verboseFlag) { + printf ("%s %3d/%-d %9ld %s %s", modeString (mode), + uid, gid, size, timeString (mtime), name); + } else + printf ("%s", name); if (hardLink) - { - if (link(hp->linkName, name) < 0) - perror(name); - - return; - } - - if (softLink) - { -#ifdef S_ISLNK - if (symlink(hp->linkName, name) < 0) - perror(name); -#else - fprintf(stderr, "Cannot create symbolic links\n"); -#endif - return; + printf (" (link to \"%s\")", hp->linkName); + else if (softLink) + printf (" (symlink to \"%s\")", hp->linkName); + else if (S_ISREG (mode)) { + inHeader = (size == 0); + dataCc = size; } - /* - * If the file is a directory, then just create the path. - */ - if (S_ISDIR(mode)) - { - createPath(name, mode); + printf ("\n"); - return; - } + return; + } - /* - * There is a file to write. - * First create the path to it if necessary with a default permission. - */ - createPath(name, 0777); + /* + * We really want to extract the file. + */ + if (verboseFlag) + printf ("x %s\n", name); - inHeader = (size == 0); - dataCc = size; + if (hardLink) { + if (link (hp->linkName, name) < 0) + perror (name); - /* - * Start the output file. - */ - if (tostdoutFlag==TRUE) - outFd = STDOUT; - else - outFd = open(name, O_WRONLY | O_CREAT | O_TRUNC, mode); - - if (outFd < 0) - { - perror(name); - skipFileFlag = TRUE; - return; - } + return; + } - /* - * If the file is empty, then that's all we need to do. - */ - if (size == 0 && tostdoutFlag == FALSE) - { - (void) close(outFd); - outFd = -1; - } + if (softLink) { +#ifdef S_ISLNK + if (symlink (hp->linkName, name) < 0) + perror (name); +#else + fprintf (stderr, "Cannot create symbolic links\n"); +#endif + return; + } + + /* + * If the file is a directory, then just create the path. + */ + if (S_ISDIR (mode)) { + createPath (name, mode); + + return; + } + + /* + * There is a file to write. + * First create the path to it if necessary with a default permission. + */ + createPath (name, 0777); + + inHeader = (size == 0); + dataCc = size; + + /* + * Start the output file. + */ + if (tostdoutFlag == TRUE) + outFd = STDOUT; + else + outFd = open (name, O_WRONLY | O_CREAT | O_TRUNC, mode); + + if (outFd < 0) { + perror (name); + skipFileFlag = TRUE; + return; + } + + /* + * If the file is empty, then that's all we need to do. + */ + if (size == 0 && tostdoutFlag == FALSE) { + (void) close (outFd); + outFd = -1; + } } /* * Handle a data block of some specified size that was read. */ -static void -readData(const char * cp, int count) +static void readData (const char *cp, int count) { - /* - * Reduce the amount of data left in this file. - * If there is no more data left, then we need to read - * the header again. - */ - dataCc -= count; - - if (dataCc <= 0) - inHeader = TRUE; - - /* - * If we aren't extracting files or this file is being - * skipped then do nothing more. - */ - if (!extractFlag || skipFileFlag) - return; + /* + * Reduce the amount of data left in this file. + * If there is no more data left, then we need to read + * the header again. + */ + dataCc -= count; + + if (dataCc <= 0) + inHeader = TRUE; - /* - * Write the data to the output file. - */ - if (fullWrite(outFd, cp, count) < 0) - { - perror(outName); - if (tostdoutFlag==FALSE) { - (void) close(outFd); - outFd = -1; - } - skipFileFlag = TRUE; - return; + /* + * If we aren't extracting files or this file is being + * skipped then do nothing more. + */ + if (!extractFlag || skipFileFlag) + return; + + /* + * Write the data to the output file. + */ + if (fullWrite (outFd, cp, count) < 0) { + perror (outName); + if (tostdoutFlag == FALSE) { + (void) close (outFd); + outFd = -1; } + skipFileFlag = TRUE; + return; + } + + /* + * If the write failed, close the file and disable further + * writes to this file. + */ + if (dataCc <= 0 && tostdoutFlag == FALSE) { + if (close (outFd)) + perror (outName); - /* - * If the write failed, close the file and disable further - * writes to this file. - */ - if (dataCc <= 0 && tostdoutFlag==FALSE) - { - if (close(outFd)) - perror(outName); - - outFd = -1; - } + outFd = -1; + } } /* * Write a tar file containing the specified files. */ -static void -writeTarFile(int fileCount, char ** fileTable) +static void writeTarFile (int fileCount, char **fileTable) { - struct stat statbuf; - - /* - * Make sure there is at least one file specified. - */ - if (fileCount <= 0) - { - fprintf(stderr, "No files specified to be saved\n"); - errorFlag=TRUE; - } - - /* - * Create the tar file for writing. - */ - if ( (tarName==NULL) || !strcmp( tarName, "-") ) { - tostdoutFlag = TRUE; - tarFd = STDOUT; - } - else - tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666); - - if (tarFd < 0) - { - perror(tarName); - errorFlag=TRUE; - return; - } - - /* - * Get the device and inode of the tar file for checking later. - */ - if (fstat(tarFd, &statbuf) < 0) - { - perror(tarName); - errorFlag = TRUE; - goto done; - } - - tarDev = statbuf.st_dev; - tarInode = statbuf.st_ino; - - /* - * Append each file name into the archive file. - * Follow symbolic links for these top level file names. - */ - while (!errorFlag && (fileCount-- > 0)) - { - saveFile(*fileTable++, FALSE); - } - - /* - * Now write an empty block of zeroes to end the archive. - */ - writeTarBlock("", 1); - - -done: - /* - * Close the tar file and check for errors if it was opened. - */ - if ( (tostdoutFlag==FALSE) && (tarFd >= 0) && (close(tarFd) < 0)) - perror(tarName); + struct stat statbuf; + + /* + * Make sure there is at least one file specified. + */ + if (fileCount <= 0) { + fprintf (stderr, "No files specified to be saved\n"); + errorFlag = TRUE; + } + + /* + * Create the tar file for writing. + */ + if ((tarName == NULL) || !strcmp (tarName, "-")) { + tostdoutFlag = TRUE; + tarFd = STDOUT; + } else + tarFd = open (tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666); + + if (tarFd < 0) { + perror (tarName); + errorFlag = TRUE; + return; + } + + /* + * Get the device and inode of the tar file for checking later. + */ + if (fstat (tarFd, &statbuf) < 0) { + perror (tarName); + errorFlag = TRUE; + goto done; + } + + tarDev = statbuf.st_dev; + tarInode = statbuf.st_ino; + + /* + * Append each file name into the archive file. + * Follow symbolic links for these top level file names. + */ + while (!errorFlag && (fileCount-- > 0)) { + saveFile (*fileTable++, FALSE); + } + + /* + * Now write an empty block of zeroes to end the archive. + */ + writeTarBlock ("", 1); + + + done: + /* + * Close the tar file and check for errors if it was opened. + */ + if ((tostdoutFlag == FALSE) && (tarFd >= 0) && (close (tarFd) < 0)) + perror (tarName); } @@ -709,76 +668,70 @@ done: * flag indicates whether or not we want to see symbolic links as * they really are, instead of blindly following them. */ -static void -saveFile(const char * fileName, int seeLinks) +static void saveFile (const char *fileName, int seeLinks) { - int status; - int mode; - struct stat statbuf; + int status; + int mode; + struct stat statbuf; - if (verboseFlag) - printf("a %s\n", fileName); + if (verboseFlag) + printf ("a %s\n", fileName); - /* - * Check that the file name will fit in the header. - */ - if (strlen(fileName) >= TAR_NAME_SIZE) - { - fprintf(stderr, "%s: File name is too long\n", fileName); + /* + * Check that the file name will fit in the header. + */ + if (strlen (fileName) >= TAR_NAME_SIZE) { + fprintf (stderr, "%s: File name is too long\n", fileName); - return; - } + return; + } - /* - * Find out about the file. - */ + /* + * Find out about the file. + */ #ifdef S_ISLNK - if (seeLinks) - status = lstat(fileName, &statbuf); - else + if (seeLinks) + status = lstat (fileName, &statbuf); + else #endif - status = stat(fileName, &statbuf); + status = stat (fileName, &statbuf); - if (status < 0) - { - perror(fileName); + if (status < 0) { + perror (fileName); - return; - } + return; + } - /* - * Make sure we aren't trying to save our file into itself. - */ - if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode)) - { - fprintf(stderr, "Skipping saving of archive file itself\n"); + /* + * Make sure we aren't trying to save our file into itself. + */ + if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode)) { + fprintf (stderr, "Skipping saving of archive file itself\n"); - return; - } + return; + } - /* - * Check the type of file. - */ - mode = statbuf.st_mode; + /* + * Check the type of file. + */ + mode = statbuf.st_mode; - if (S_ISDIR(mode)) - { - saveDirectory(fileName, &statbuf); + if (S_ISDIR (mode)) { + saveDirectory (fileName, &statbuf); - return; - } + return; + } - if (S_ISREG(mode)) - { - saveRegularFile(fileName, &statbuf); + if (S_ISREG (mode)) { + saveRegularFile (fileName, &statbuf); - return; - } + return; + } - /* - * The file is a strange type of file, ignore it. - */ - fprintf(stderr, "%s: not a directory or regular file\n", fileName); + /* + * The file is a strange type of file, ignore it. + */ + fprintf (stderr, "%s: not a directory or regular file\n", fileName); } @@ -786,183 +739,173 @@ saveFile(const char * fileName, int seeLinks) * Save a regular file to the tar file. */ static void -saveRegularFile(const char * fileName, const struct stat * statbuf) +saveRegularFile (const char *fileName, const struct stat *statbuf) { - int sawEof; - int fileFd; - int cc; - int dataCount; - long fullDataCount; - char data[TAR_BLOCK_SIZE * 16]; - - /* - * Open the file for reading. + int sawEof; + int fileFd; + int cc; + int dataCount; + long fullDataCount; + char data[TAR_BLOCK_SIZE * 16]; + + /* + * Open the file for reading. + */ + fileFd = open (fileName, O_RDONLY); + + if (fileFd < 0) { + perror (fileName); + + return; + } + + /* + * Write out the header for the file. + */ + writeHeader (fileName, statbuf); + + /* + * Write the data blocks of the file. + * We must be careful to write the amount of data that the stat + * buffer indicated, even if the file has changed size. Otherwise + * the tar file will be incorrect. + */ + fullDataCount = statbuf->st_size; + sawEof = FALSE; + + while (fullDataCount > 0) { + /* + * Get the amount to write this iteration which is + * the minumum of the amount left to write and the + * buffer size. */ - fileFd = open(fileName, O_RDONLY); - - if (fileFd < 0) - { - perror(fileName); + dataCount = sizeof (data); - return; - } + if (dataCount > fullDataCount) + dataCount = (int) fullDataCount; - /* - * Write out the header for the file. + /* + * Read the data from the file if we haven't seen the + * end of file yet. */ - writeHeader(fileName, statbuf); + cc = 0; - /* - * Write the data blocks of the file. - * We must be careful to write the amount of data that the stat - * buffer indicated, even if the file has changed size. Otherwise - * the tar file will be incorrect. - */ - fullDataCount = statbuf->st_size; - sawEof = FALSE; - - while (fullDataCount > 0) - { - /* - * Get the amount to write this iteration which is - * the minumum of the amount left to write and the - * buffer size. - */ - dataCount = sizeof(data); - - if (dataCount > fullDataCount) - dataCount = (int) fullDataCount; - - /* - * Read the data from the file if we haven't seen the - * end of file yet. - */ - cc = 0; - - if (!sawEof) - { - cc = fullRead(fileFd, data, dataCount); - - if (cc < 0) - { - perror(fileName); - - (void) close(fileFd); - errorFlag = TRUE; - - return; - } - - /* - * If the file ended too soon, complain and set - * a flag so we will zero fill the rest of it. - */ - if (cc < dataCount) - { - fprintf(stderr, - "%s: Short read - zero filling", - fileName); - - sawEof = TRUE; - } - } + if (!sawEof) { + cc = fullRead (fileFd, data, dataCount); - /* - * Zero fill the rest of the data if necessary. - */ - if (cc < dataCount) - memset(data + cc, 0, dataCount - cc); + if (cc < 0) { + perror (fileName); - /* - * Write the buffer to the TAR file. - */ - writeTarBlock(data, dataCount); + (void) close (fileFd); + errorFlag = TRUE; - fullDataCount -= dataCount; + return; + } + + /* + * If the file ended too soon, complain and set + * a flag so we will zero fill the rest of it. + */ + if (cc < dataCount) { + fprintf (stderr, + "%s: Short read - zero filling", fileName); + + sawEof = TRUE; + } } - /* - * Close the file. + /* + * Zero fill the rest of the data if necessary. + */ + if (cc < dataCount) + memset (data + cc, 0, dataCount - cc); + + /* + * Write the buffer to the TAR file. */ - if ( (tostdoutFlag==FALSE) && close(fileFd) < 0) - fprintf(stderr, "%s: close: %s\n", fileName, strerror(errno)); + writeTarBlock (data, dataCount); + + fullDataCount -= dataCount; + } + + /* + * Close the file. + */ + if ((tostdoutFlag == FALSE) && close (fileFd) < 0) + fprintf (stderr, "%s: close: %s\n", fileName, strerror (errno)); } /* * Save a directory and all of its files to the tar file. */ -static void -saveDirectory(const char * dirName, const struct stat * statbuf) +static void saveDirectory (const char *dirName, const struct stat *statbuf) { - DIR * dir; - struct dirent * entry; - int needSlash; - char fullName[PATH_LEN]; - - /* - * Construct the directory name as used in the tar file by appending - * a slash character to it. - */ - strcpy(fullName, dirName); - strcat(fullName, "/"); - - /* - * Write out the header for the directory entry. - */ - writeHeader(fullName, statbuf); - - /* - * Open the directory. - */ - dir = opendir(dirName); - - if (dir == NULL) - { - fprintf(stderr, "Cannot read directory \"%s\": %s\n", - dirName, strerror(errno)); - - return; + DIR *dir; + struct dirent *entry; + int needSlash; + char fullName[PATH_LEN]; + + /* + * Construct the directory name as used in the tar file by appending + * a slash character to it. + */ + strcpy (fullName, dirName); + strcat (fullName, "/"); + + /* + * Write out the header for the directory entry. + */ + writeHeader (fullName, statbuf); + + /* + * Open the directory. + */ + dir = opendir (dirName); + + if (dir == NULL) { + fprintf (stderr, "Cannot read directory \"%s\": %s\n", + dirName, strerror (errno)); + + return; + } + + /* + * See if a slash is needed. + */ + needSlash = (*dirName && (dirName[strlen (dirName) - 1] != '/')); + + /* + * Read all of the directory entries and check them, + * except for the current and parent directory entries. + */ + while (!errorFlag && ((entry = readdir (dir)) != NULL)) { + if ((strcmp (entry->d_name, ".") == 0) || + (strcmp (entry->d_name, "..") == 0)) { + continue; } - /* - * See if a slash is needed. + /* + * Build the full path name to the file. */ - needSlash = (*dirName && (dirName[strlen(dirName) - 1] != '/')); + strcpy (fullName, dirName); - /* - * Read all of the directory entries and check them, - * except for the current and parent directory entries. - */ - while (!errorFlag && ((entry = readdir(dir)) != NULL)) - { - if ((strcmp(entry->d_name, ".") == 0) || - (strcmp(entry->d_name, "..") == 0)) - { - continue; - } - - /* - * Build the full path name to the file. - */ - strcpy(fullName, dirName); + if (needSlash) + strcat (fullName, "/"); - if (needSlash) - strcat(fullName, "/"); + strcat (fullName, entry->d_name); - strcat(fullName, entry->d_name); - - /* - * Write this file to the tar file, noticing whether or not - * the file is a symbolic link. - */ - saveFile(fullName, TRUE); - } - - /* - * All done, close the directory. + /* + * Write this file to the tar file, noticing whether or not + * the file is a symbolic link. */ - closedir(dir); + saveFile (fullName, TRUE); + } + + /* + * All done, close the directory. + */ + closedir (dir); } @@ -970,55 +913,54 @@ saveDirectory(const char * dirName, const struct stat * statbuf) * Write a tar header for the specified file name and status. * It is assumed that the file name fits. */ -static void -writeHeader(const char * fileName, const struct stat * statbuf) +static void writeHeader (const char *fileName, const struct stat *statbuf) { - long checkSum; - const unsigned char * cp; - int len; - TarHeader header; - - /* - * Zero the header block in preparation for filling it in. - */ - memset((char *) &header, 0, sizeof(header)); - - /* - * Fill in the header. - */ - strcpy(header.name, fileName); - - strncpy(header.magic, TAR_MAGIC, sizeof(header.magic)); - strncpy(header.version, TAR_VERSION, sizeof(header.version)); - - putOctal(header.mode, sizeof(header.mode), statbuf->st_mode & 0777); - putOctal(header.uid, sizeof(header.uid), statbuf->st_uid); - putOctal(header.gid, sizeof(header.gid), statbuf->st_gid); - putOctal(header.size, sizeof(header.size), statbuf->st_size); - putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime); - - header.typeFlag = TAR_TYPE_REGULAR; - - /* - * Calculate and store the checksum. - * This is the sum of all of the bytes of the header, - * with the checksum field itself treated as blanks. - */ - memset(header.checkSum, ' ', sizeof(header.checkSum)); - - cp = (const unsigned char *) &header; - len = sizeof(header); - checkSum = 0; - - while (len-- > 0) - checkSum += *cp++; - - putOctal(header.checkSum, sizeof(header.checkSum), checkSum); - - /* - * Write the tar header. - */ - writeTarBlock((const char *) &header, sizeof(header)); + long checkSum; + const unsigned char *cp; + int len; + TarHeader header; + + /* + * Zero the header block in preparation for filling it in. + */ + memset ((char *) &header, 0, sizeof (header)); + + /* + * Fill in the header. + */ + strcpy (header.name, fileName); + + strncpy (header.magic, TAR_MAGIC, sizeof (header.magic)); + strncpy (header.version, TAR_VERSION, sizeof (header.version)); + + putOctal (header.mode, sizeof (header.mode), statbuf->st_mode & 0777); + putOctal (header.uid, sizeof (header.uid), statbuf->st_uid); + putOctal (header.gid, sizeof (header.gid), statbuf->st_gid); + putOctal (header.size, sizeof (header.size), statbuf->st_size); + putOctal (header.mtime, sizeof (header.mtime), statbuf->st_mtime); + + header.typeFlag = TAR_TYPE_REGULAR; + + /* + * Calculate and store the checksum. + * This is the sum of all of the bytes of the header, + * with the checksum field itself treated as blanks. + */ + memset (header.checkSum, ' ', sizeof (header.checkSum)); + + cp = (const unsigned char *) &header; + len = sizeof (header); + checkSum = 0; + + while (len-- > 0) + checkSum += *cp++; + + putOctal (header.checkSum, sizeof (header.checkSum), checkSum); + + /* + * Write the tar header. + */ + writeTarBlock ((const char *) &header, sizeof (header)); } @@ -1027,59 +969,56 @@ writeHeader(const char * fileName, const struct stat * statbuf) * The data is always padded out to a multiple of TAR_BLOCK_SIZE. * The errorFlag static variable is set on an error. */ -static void -writeTarBlock(const char * buf, int len) +static void writeTarBlock (const char *buf, int len) { - int partialLength; - int completeLength; - char fullBlock[TAR_BLOCK_SIZE]; - - /* - * If we had a write error before, then do nothing more. - */ - if (errorFlag) - return; - - /* - * Get the amount of complete and partial blocks. - */ - partialLength = len % TAR_BLOCK_SIZE; - completeLength = len - partialLength; - - /* - * Write all of the complete blocks. - */ - if ((completeLength > 0) && !fullWrite(tarFd, buf, completeLength)) - { - perror(tarName); - - errorFlag = TRUE; - - return; - } - - /* - * If there are no partial blocks left, we are done. - */ - if (partialLength == 0) - return; - - /* - * Copy the partial data into a complete block, and pad the rest - * of it with zeroes. - */ - memcpy(fullBlock, buf + completeLength, partialLength); - memset(fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength); - - /* - * Write the last complete block. - */ - if (!fullWrite(tarFd, fullBlock, TAR_BLOCK_SIZE)) - { - perror(tarName); - - errorFlag = TRUE; - } + int partialLength; + int completeLength; + char fullBlock[TAR_BLOCK_SIZE]; + + /* + * If we had a write error before, then do nothing more. + */ + if (errorFlag) + return; + + /* + * Get the amount of complete and partial blocks. + */ + partialLength = len % TAR_BLOCK_SIZE; + completeLength = len - partialLength; + + /* + * Write all of the complete blocks. + */ + if ((completeLength > 0) && !fullWrite (tarFd, buf, completeLength)) { + perror (tarName); + + errorFlag = TRUE; + + return; + } + + /* + * If there are no partial blocks left, we are done. + */ + if (partialLength == 0) + return; + + /* + * Copy the partial data into a complete block, and pad the rest + * of it with zeroes. + */ + memcpy (fullBlock, buf + completeLength, partialLength); + memset (fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength); + + /* + * Write the last complete block. + */ + if (!fullWrite (tarFd, fullBlock, TAR_BLOCK_SIZE)) { + perror (tarName); + + errorFlag = TRUE; + } } @@ -1089,29 +1028,27 @@ writeTarBlock(const char * buf, int len) * while all previous ones get default protections. Errors are not reported * here, as failures to restore files can be reported later. */ -static void -createPath(const char * name, int mode) +static void createPath (const char *name, int mode) { - char * cp; - char * cpOld; - char buf[TAR_NAME_SIZE]; + char *cp; + char *cpOld; + char buf[TAR_NAME_SIZE]; - strcpy(buf, name); + strcpy (buf, name); - cp = strchr(buf, '/'); + cp = strchr (buf, '/'); - while (cp) - { - cpOld = cp; - cp = strchr(cp + 1, '/'); + while (cp) { + cpOld = cp; + cp = strchr (cp + 1, '/'); - *cpOld = '\0'; + *cpOld = '\0'; - if (mkdir(buf, cp ? 0777 : mode) == 0) - printf("Directory \"%s\" created\n", buf); + if (mkdir (buf, cp ? 0777 : mode) == 0) + printf ("Directory \"%s\" created\n", buf); - *cpOld = '/'; - } + *cpOld = '/'; + } } @@ -1120,38 +1057,34 @@ createPath(const char * name, int mode) * spaces on both sides of the number and with an optional null character * at the end. Returns -1 on an illegal format. */ -static long -getOctal(const char * cp, int len) +static long getOctal (const char *cp, int len) { - long val; + long val; - while ((len > 0) && (*cp == ' ')) - { - cp++; - len--; - } + while ((len > 0) && (*cp == ' ')) { + cp++; + len--; + } - if ((len == 0) || !isOctal(*cp)) - return -1; + if ((len == 0) || !isOctal (*cp)) + return -1; - val = 0; + val = 0; - while ((len > 0) && isOctal(*cp)) - { - val = val * 8 + *cp++ - '0'; - len--; - } + while ((len > 0) && isOctal (*cp)) { + val = val * 8 + *cp++ - '0'; + len--; + } - while ((len > 0) && (*cp == ' ')) - { - cp++; - len--; - } + while ((len > 0) && (*cp == ' ')) { + cp++; + len--; + } - if ((len > 0) && *cp) - return -1; + if ((len > 0) && *cp) + return -1; - return val; + return val; } @@ -1160,50 +1093,48 @@ getOctal(const char * cp, int len) * The number is zero and space padded and possibly null padded. * Returns TRUE if successful. */ -static int -putOctal(char * cp, int len, long value) +static int putOctal (char *cp, int len, long value) { - int tempLength; - char * tempString; - char tempBuffer[32]; - - /* - * Create a string of the specified length with an initial space, - * leading zeroes and the octal number, and a trailing null. - */ - tempString = tempBuffer; - - sprintf(tempString, " %0*lo", len - 2, value); - - tempLength = strlen(tempString) + 1; - - /* - * If the string is too large, suppress the leading space. - */ - if (tempLength > len) - { - tempLength--; - tempString++; - } - - /* - * If the string is still too large, suppress the trailing null. - */ - if (tempLength > len) - tempLength--; + int tempLength; + char *tempString; + char tempBuffer[32]; + + /* + * Create a string of the specified length with an initial space, + * leading zeroes and the octal number, and a trailing null. + */ + tempString = tempBuffer; + + sprintf (tempString, " %0*lo", len - 2, value); + + tempLength = strlen (tempString) + 1; + + /* + * If the string is too large, suppress the leading space. + */ + if (tempLength > len) { + tempLength--; + tempString++; + } + + /* + * If the string is still too large, suppress the trailing null. + */ + if (tempLength > len) + tempLength--; + + /* + * If the string is still too large, fail. + */ + if (tempLength > len) + return FALSE; - /* - * If the string is still too large, fail. - */ - if (tempLength > len) - return FALSE; + /* + * Copy the string to the field. + */ + memcpy (cp, tempString, len); - /* - * Copy the string to the field. - */ - memcpy(cp, tempString, len); - - return TRUE; + return TRUE; } @@ -1213,48 +1144,43 @@ putOctal(char * cp, int len, long value) * Returns TRUE if the file is selected. */ static int -wantFileName(const char * fileName, int fileCount, char ** fileTable) +wantFileName (const char *fileName, int fileCount, char **fileTable) { - const char * pathName; - int fileLength; - int pathLength; - - /* - * If there are no files in the list, then the file is wanted. - */ - if (fileCount == 0) - return TRUE; + const char *pathName; + int fileLength; + int pathLength; + + /* + * If there are no files in the list, then the file is wanted. + */ + if (fileCount == 0) + return TRUE; - fileLength = strlen(fileName); + fileLength = strlen (fileName); - /* - * Check each of the test paths. - */ - while (fileCount-- > 0) - { - pathName = *fileTable++; + /* + * Check each of the test paths. + */ + while (fileCount-- > 0) { + pathName = *fileTable++; - pathLength = strlen(pathName); + pathLength = strlen (pathName); - if (fileLength < pathLength) - continue; + if (fileLength < pathLength) + continue; - if (memcmp(fileName, pathName, pathLength) != 0) - continue; + if (memcmp (fileName, pathName, pathLength) != 0) + continue; - if ((fileLength == pathLength) || - (fileName[pathLength] == '/')) - { - return TRUE; - } + if ((fileLength == pathLength) || (fileName[pathLength] == '/')) { + return TRUE; } + } - return FALSE; + return FALSE; } #endif /* END CODE */ - - diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c index 9096621..64265b4 100644 --- a/util-linux/dmesg.c +++ b/util-linux/dmesg.c @@ -14,7 +14,6 @@ #include <linux/unistd.h> #include <stdio.h> -#include <getopt.h> #define __NR_klog __NR_syslog @@ -22,74 +21,78 @@ #include <sys/klog.h> #define klog klogctl #else -static inline _syscall3(int,klog,int,type,char *,b,int,len) -#endif /* __GLIBC__ */ +static inline _syscall3 (int, klog, int, type, char *, b, int, len) +#endif /* __GLIBC__ */ -const char dmesg_usage[] = "dmesg"; -int -dmesg_main(int argc, char * * argv) + +static const char dmesg_usage[] = "dmesg [-c] [-n level]\n"; + +int dmesg_main (int argc, char **argv) { - char buf[4096]; - int i; - int n; - int c; - int level = 0; - int lastc; - int cmd = 3; + char buf[4096]; + int i; + int n; + int level = 0; + int lastc; + int cmd = 3; - while ((c = getopt( argc, argv, "cn:" )) != EOF) { - switch (c) { - case 'c': - cmd = 4; - break; - case 'n': - cmd = 8; - level = atoi(optarg); - break; - case '?': - default: - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } - } - argc -= optind; - argv += optind; - - if (argc > 1) { - fprintf(stderr, "%s\n", dmesg_usage); - exit(1); - } + argc--; + argv++; - if (cmd == 8) { - n = klog( cmd, NULL, level ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } - exit( 0 ); - } + /* Parse any options */ + while (argc && **argv == '-') { + while (*++(*argv)) + switch (**argv) { + case 'c': + cmd = 4; + break; + case 'n': + cmd = 8; + if (--argc == 0) + goto end; + level = atoi (*(++argv)); + --argc; + ++argv; + break; + default: + goto end; + } + } - n = klog( cmd, buf, sizeof( buf ) ); - if (n < 0) { - perror( "klog" ); - exit( 1 ); - } + if (cmd == 8) { + n = klog (cmd, NULL, level); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + exit (TRUE); + } - lastc = '\n'; - for (i = 0; i < n; i++) { - if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { - i++; - while (buf[i] >= '0' && buf[i] <= '9') - i++; - if (buf[i] == '>') + n = klog (cmd, buf, sizeof (buf)); + if (n < 0) { + perror ("klog"); + exit (FALSE); + } + + lastc = '\n'; + for (i = 0; i < n; i++) { + if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') { i++; - } - lastc = buf[i]; - putchar( lastc ); - } - if (lastc != '\n') - putchar( '\n' ); - return 0; + while (buf[i] >= '0' && buf[i] <= '9') + i++; + if (buf[i] == '>') + i++; + } + lastc = buf[i]; + putchar (lastc); + } + if (lastc != '\n') + putchar ('\n'); + exit (TRUE); + + end: + fprintf (stderr, "Usage: %s\n", dmesg_usage); + exit (FALSE); } diff --git a/util-linux/more.c b/util-linux/more.c index 6ac553e..f893874 100644 --- a/util-linux/more.c +++ b/util-linux/more.c @@ -19,27 +19,48 @@ * */ + +/* Turning this off makes things a bit smaller (and less pretty) */ +#define BB_MORE_TERM + + + #include "internal.h" #include <stdio.h> #include <signal.h> + const char more_usage[] = "[file ...]"; -//#define ERASE_STUFF + +#ifdef BB_MORE_TERM + #include <termios.h> + #include <signal.h> + #include <sys/ioctl.h> + + FILE *cin; + struct termios initial_settings, new_settings; + + void gotsig(int sig) { + tcsetattr(fileno(cin), TCSANOW, &initial_settings); + exit( TRUE); + } +#endif extern int more_main(int argc, char **argv) { - int c, lines=0; + int c, lines=0, input; int next_page=0, rows = 24; -#ifdef ERASE_STUFF - int cols=79; +#ifdef BB_MORE_TERM + int cols; + struct winsize win; #endif struct stat st; FILE *file = stdin; if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) { fprintf(stderr, "Usage: %s %s", *argv, more_usage); - return(FALSE); + exit(FALSE); } argc--; argv++; @@ -48,23 +69,47 @@ extern int more_main(int argc, char **argv) file = fopen(*argv, "r"); if (file == NULL) { perror("Can't open file"); - return(FALSE); + exit(FALSE); } fstat(fileno(file), &st); fprintf(stderr, "hi\n"); +#ifdef BB_MORE_TERM + cin = fopen("/dev/tty", "r"); + tcgetattr(fileno(cin),&initial_settings); + new_settings = initial_settings; + new_settings.c_lflag &= ~ICANON; + new_settings.c_lflag &= ~ECHO; + tcsetattr(fileno(cin), TCSANOW, &new_settings); + + (void) signal(SIGINT, gotsig); + + ioctl(STDOUT_FILENO, TIOCGWINSZ, &win); + if (win.ws_row > 4) rows = win.ws_row - 2; + if (win.ws_col > 0) cols = win.ws_col - 1; + + +#endif while ((c = getc(file)) != EOF) { if ( next_page ) { int len=0; next_page = 0; lines=0; - len = fprintf(stdout, "--More-- (%d%% of %ld bytes)", + len = fprintf(stdout, "--More-- (%d%% of %ld bytes)%s", (int) (100*( (double) ftell(file) / (double) st.st_size )), - st.st_size); + st.st_size, +#ifdef BB_MORE_TERM + "" +#else + "\n" +#endif + ); + fflush(stdout); - getc( stdin); -#ifdef ERASE_STUFF - /* Try to erase the "More" message */ + input = getc( stdin); + +#ifdef BB_MORE_TERM + /* Erase the "More" message */ while(len-- > 0) putc('\b', stdout); while(len++ < cols) @@ -73,7 +118,12 @@ extern int more_main(int argc, char **argv) putc('\b', stdout); fflush(stdout); #endif + } + if (input=='q') + goto end; + if (input==' ' && c == '\n' ) + next_page = 1; if ( c == '\n' && ++lines == (rows + 1) ) next_page = 1; putc(c, stdout); @@ -84,7 +134,10 @@ extern int more_main(int argc, char **argv) argc--; argv++; } - return(TRUE); +end: +#ifdef BB_MORE_TERM + gotsig(0); +#endif + exit(TRUE); } - |