diff options
| -rw-r--r-- | coreutils/dd.c | 33 | ||||
| -rw-r--r-- | dd.c | 33 |
2 files changed, 32 insertions, 34 deletions
diff --git a/coreutils/dd.c b/coreutils/dd.c index 40288fd..ecf7e3a 100644 --- a/coreutils/dd.c +++ b/coreutils/dd.c @@ -20,7 +20,7 @@ const char dd_usage[] = 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\ +\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\ @@ -100,25 +100,25 @@ extern int dd_main (int argc, char **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; + if (inFile == NULL && (strncmp(*argv, "if", 2) == 0)) + inFile=((strchr(*argv, '='))+1); + else if (outFile == NULL && (strncmp(*argv, "of", 2) == 0)) + outFile=((strchr(*argv, '='))+1); else if (strncmp("count", *argv, 5) == 0) { - count = getNum (*argv); + count = getNum ((strchr(*argv, '='))+1); if (count <= 0) { fprintf (stderr, "Bad count value %ld\n", count); goto usage; } } - else if (strncmp("bs", *argv, 2) == 0) { - blockSize = getNum(*argv); + else if (strncmp(*argv, "bs", 2) == 0) { + blockSize = getNum ((strchr(*argv, '='))+1); if (blockSize <= 0) { fprintf (stderr, "Bad block size value %d\n", blockSize); goto usage; } } - else if (strncmp("skip", *argv, 4) == 0) { + else if (strncmp(*argv, "skip", 4) == 0) { skipBlocks = atoi( *argv); if (skipBlocks <= 0) { fprintf (stderr, "Bad skip value %d\n", skipBlocks); @@ -129,10 +129,9 @@ extern int dd_main (int argc, char **argv) else { fprintf (stderr, "Got here. argv=%s\n", *argv); goto usage; - + } argc--; argv++; - } } if ( inFile == NULL || outFile == NULL) goto usage; @@ -140,13 +139,13 @@ extern int dd_main (int argc, char **argv) buf = malloc (blockSize); if (buf == NULL) { fprintf (stderr, "Cannot allocate buffer\n"); - return( FALSE); + exit( FALSE); } intotal = 0; outTotal = 0; - if (!inFile) + if (inFile == NULL) inFd = STDIN; else inFd = open (inFile, 0); @@ -154,10 +153,10 @@ extern int dd_main (int argc, char **argv) if (inFd < 0) { perror (inFile); free (buf); - return( FALSE); + exit( FALSE); } - if (!outFile) + if (outFile == NULL) outFd = STDOUT; else outFd = creat (outFile, 0666); @@ -166,10 +165,10 @@ extern int dd_main (int argc, char **argv) perror (outFile); close (inFd); free (buf); - return( FALSE); + exit( FALSE); } - lseek(inFd, skipBlocks*blockSize, SEEK_SET); + //lseek(inFd, skipBlocks*blockSize, SEEK_SET); while (outTotal < count * blockSize) { inCc = read (inFd, buf, blockSize); if (inCc < 0) { @@ -20,7 +20,7 @@ const char dd_usage[] = 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\ +\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\ @@ -100,25 +100,25 @@ extern int dd_main (int argc, char **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; + if (inFile == NULL && (strncmp(*argv, "if", 2) == 0)) + inFile=((strchr(*argv, '='))+1); + else if (outFile == NULL && (strncmp(*argv, "of", 2) == 0)) + outFile=((strchr(*argv, '='))+1); else if (strncmp("count", *argv, 5) == 0) { - count = getNum (*argv); + count = getNum ((strchr(*argv, '='))+1); if (count <= 0) { fprintf (stderr, "Bad count value %ld\n", count); goto usage; } } - else if (strncmp("bs", *argv, 2) == 0) { - blockSize = getNum(*argv); + else if (strncmp(*argv, "bs", 2) == 0) { + blockSize = getNum ((strchr(*argv, '='))+1); if (blockSize <= 0) { fprintf (stderr, "Bad block size value %d\n", blockSize); goto usage; } } - else if (strncmp("skip", *argv, 4) == 0) { + else if (strncmp(*argv, "skip", 4) == 0) { skipBlocks = atoi( *argv); if (skipBlocks <= 0) { fprintf (stderr, "Bad skip value %d\n", skipBlocks); @@ -129,10 +129,9 @@ extern int dd_main (int argc, char **argv) else { fprintf (stderr, "Got here. argv=%s\n", *argv); goto usage; - + } argc--; argv++; - } } if ( inFile == NULL || outFile == NULL) goto usage; @@ -140,13 +139,13 @@ extern int dd_main (int argc, char **argv) buf = malloc (blockSize); if (buf == NULL) { fprintf (stderr, "Cannot allocate buffer\n"); - return( FALSE); + exit( FALSE); } intotal = 0; outTotal = 0; - if (!inFile) + if (inFile == NULL) inFd = STDIN; else inFd = open (inFile, 0); @@ -154,10 +153,10 @@ extern int dd_main (int argc, char **argv) if (inFd < 0) { perror (inFile); free (buf); - return( FALSE); + exit( FALSE); } - if (!outFile) + if (outFile == NULL) outFd = STDOUT; else outFd = creat (outFile, 0666); @@ -166,10 +165,10 @@ extern int dd_main (int argc, char **argv) perror (outFile); close (inFd); free (buf); - return( FALSE); + exit( FALSE); } - lseek(inFd, skipBlocks*blockSize, SEEK_SET); + //lseek(inFd, skipBlocks*blockSize, SEEK_SET); while (outTotal < count * blockSize) { inCc = read (inFd, buf, blockSize); if (inCc < 0) { |