diff options
| -rw-r--r-- | archival/gzip.c | 91 | ||||
| -rw-r--r-- | gzip.c | 91 |
2 files changed, 126 insertions, 56 deletions
diff --git a/archival/gzip.c b/archival/gzip.c index c362706..500d6d7 100644 --- a/archival/gzip.c +++ b/archival/gzip.c @@ -7,9 +7,9 @@ #include "internal.h" #ifdef BB_GZIP -#ifndef BB_ZCAT -#error you need zcat to have gzip support! -#endif +//#ifndef BB_ZCAT +//#error you need zcat to have gzip support! +//#endif static const char gzip_usage[] = "gzip [OPTION]... [FILE]...\n\n" @@ -276,7 +276,7 @@ extern int save_orig_name; /* set if original name must be saved */ #define WARN(msg) {if (!quiet) fprintf msg ; \ if (exit_code == OK) exit_code = WARNING;} -local void do_exit(int exitcode); +local void do_exit(int exitcode) __attribute__ ((noreturn)); /* in zip.c: */ extern int zip OF((int in, int out)); @@ -1762,9 +1762,6 @@ unsigned outcnt; /* bytes in output buffer */ /* local functions */ -local void treat_stdin OF((void)); -static int (*work) OF((int infile, int outfile)) = zip; /* function to call */ - #define strequ(s1, s2) (strcmp((s1),(s2)) == 0) /* ======================================================================== */ @@ -1774,6 +1771,9 @@ static int (*work) OF((int infile, int outfile)) = zip; /* function to call */ int gzip_main(int argc, char ** argv) { + int inFileNum; + int outFileNum; + /* Parse any options */ while (--argc > 0 && **(++argv) == '-') { while (*(++(*argv))) { @@ -1817,32 +1817,67 @@ int gzip_main(int argc, char ** argv) ALLOC(ush, tab_prefix1, 1L<<(BITS-1)); #endif - /* And get to work */ - treat_stdin(); - do_exit(exit_code); - return exit_code; /* just to avoid lint warning */ -} + if (tostdout==1) { + /* And get to work */ + SET_BINARY_MODE(fileno(stdout)); + strcpy(ifname, "stdin"); + strcpy(ofname, "stdout"); + inFileNum=fileno(stdin); + outFileNum=fileno(stdout); -/* ======================================================================== - * Compress or decompress stdin - */ -local void treat_stdin() -{ - SET_BINARY_MODE(fileno(stdout)); - strcpy(ifname, "stdin"); - strcpy(ofname, "stdout"); + /* Get the time stamp on the input file. */ + time_stamp = 0; /* time unknown by default */ - /* Get the time stamp on the input file. */ - time_stamp = 0; /* time unknown by default */ + ifile_size = -1L; /* convention for unknown size */ - ifile_size = -1L; /* convention for unknown size */ + clear_bufs(); /* clear input and output buffers */ + part_nb = 0; - clear_bufs(); /* clear input and output buffers */ - part_nb = 0; + /* Actually do the compression/decompression. */ + zip(inFileNum, outFileNum); - /* Actually do the compression/decompression. Loop over zipped members. - */ - if ((*work)(fileno(stdin), fileno(stdout)) != OK) return; + } else { + int result; + struct stat statBuf; + + /* And get to work */ + if (*argv=='\0') + usage(gzip_usage); + strncpy(ifname, *argv, MAX_PATH_LEN); + strncpy(ofname, *argv, MAX_PATH_LEN-4); + strcat(ofname, ".gz"); + + inFileNum=open( ifname, O_RDONLY); + if (inFileNum < 0) { + perror(ifname); + do_exit(WARNING); + } + result = stat(ifname, &statBuf); + if (result < 0) { + perror(ifname); + do_exit(WARNING); + } + + outFileNum=open( ofname, O_RDONLY); + if (outFileNum < 0) { + perror(ofname); + do_exit(WARNING); + } + SET_BINARY_MODE(outFileNum); + + /* Get the time stamp on the input file. */ + time_stamp = statBuf.st_ctime; /* time unknown by default */ + + ifile_size = statBuf.st_size; /* convention for unknown size */ + + clear_bufs(); /* clear input and output buffers */ + part_nb = 0; + + /* Actually do the compression/decompression. */ + zip(inFileNum, outFileNum); + } + + do_exit(exit_code); } /* ======================================================================== @@ -7,9 +7,9 @@ #include "internal.h" #ifdef BB_GZIP -#ifndef BB_ZCAT -#error you need zcat to have gzip support! -#endif +//#ifndef BB_ZCAT +//#error you need zcat to have gzip support! +//#endif static const char gzip_usage[] = "gzip [OPTION]... [FILE]...\n\n" @@ -276,7 +276,7 @@ extern int save_orig_name; /* set if original name must be saved */ #define WARN(msg) {if (!quiet) fprintf msg ; \ if (exit_code == OK) exit_code = WARNING;} -local void do_exit(int exitcode); +local void do_exit(int exitcode) __attribute__ ((noreturn)); /* in zip.c: */ extern int zip OF((int in, int out)); @@ -1762,9 +1762,6 @@ unsigned outcnt; /* bytes in output buffer */ /* local functions */ -local void treat_stdin OF((void)); -static int (*work) OF((int infile, int outfile)) = zip; /* function to call */ - #define strequ(s1, s2) (strcmp((s1),(s2)) == 0) /* ======================================================================== */ @@ -1774,6 +1771,9 @@ static int (*work) OF((int infile, int outfile)) = zip; /* function to call */ int gzip_main(int argc, char ** argv) { + int inFileNum; + int outFileNum; + /* Parse any options */ while (--argc > 0 && **(++argv) == '-') { while (*(++(*argv))) { @@ -1817,32 +1817,67 @@ int gzip_main(int argc, char ** argv) ALLOC(ush, tab_prefix1, 1L<<(BITS-1)); #endif - /* And get to work */ - treat_stdin(); - do_exit(exit_code); - return exit_code; /* just to avoid lint warning */ -} + if (tostdout==1) { + /* And get to work */ + SET_BINARY_MODE(fileno(stdout)); + strcpy(ifname, "stdin"); + strcpy(ofname, "stdout"); + inFileNum=fileno(stdin); + outFileNum=fileno(stdout); -/* ======================================================================== - * Compress or decompress stdin - */ -local void treat_stdin() -{ - SET_BINARY_MODE(fileno(stdout)); - strcpy(ifname, "stdin"); - strcpy(ofname, "stdout"); + /* Get the time stamp on the input file. */ + time_stamp = 0; /* time unknown by default */ - /* Get the time stamp on the input file. */ - time_stamp = 0; /* time unknown by default */ + ifile_size = -1L; /* convention for unknown size */ - ifile_size = -1L; /* convention for unknown size */ + clear_bufs(); /* clear input and output buffers */ + part_nb = 0; - clear_bufs(); /* clear input and output buffers */ - part_nb = 0; + /* Actually do the compression/decompression. */ + zip(inFileNum, outFileNum); - /* Actually do the compression/decompression. Loop over zipped members. - */ - if ((*work)(fileno(stdin), fileno(stdout)) != OK) return; + } else { + int result; + struct stat statBuf; + + /* And get to work */ + if (*argv=='\0') + usage(gzip_usage); + strncpy(ifname, *argv, MAX_PATH_LEN); + strncpy(ofname, *argv, MAX_PATH_LEN-4); + strcat(ofname, ".gz"); + + inFileNum=open( ifname, O_RDONLY); + if (inFileNum < 0) { + perror(ifname); + do_exit(WARNING); + } + result = stat(ifname, &statBuf); + if (result < 0) { + perror(ifname); + do_exit(WARNING); + } + + outFileNum=open( ofname, O_RDONLY); + if (outFileNum < 0) { + perror(ofname); + do_exit(WARNING); + } + SET_BINARY_MODE(outFileNum); + + /* Get the time stamp on the input file. */ + time_stamp = statBuf.st_ctime; /* time unknown by default */ + + ifile_size = statBuf.st_size; /* convention for unknown size */ + + clear_bufs(); /* clear input and output buffers */ + part_nb = 0; + + /* Actually do the compression/decompression. */ + zip(inFileNum, outFileNum); + } + + do_exit(exit_code); } /* ======================================================================== |