Latest and greatest
-Erik
diff --git a/gzip.c b/gzip.c
index 500d6d7..8f2c1c4 100644
--- a/gzip.c
+++ b/gzip.c
@@ -12,10 +12,11 @@
//#endif
static const char gzip_usage[] =
- "gzip [OPTION]... [FILE]...\n\n"
- "Compress FILEs with maximum compression.\n\n"
+ "gzip [OPTION]... FILE\n\n"
+ "Compress FILE with maximum compression.\n"
+ "When FILE is -, reads standard input. Implies -c.\n\n"
"Options:\n"
- "\t-c\tWrite output on standard output\n";
+ "\t-c\tWrite output to standard output instead of FILE.gz\n";
/* gzip.h -- common declarations for all gzip modules
@@ -1731,7 +1732,6 @@
int ascii = 0; /* convert end-of-lines to local OS conventions */
int decompress = 0; /* decompress (-d) */
-int tostdout = 0; /* uncompress to stdout (-c) */
int no_name = -1; /* don't save or restore the original file name */
int no_time = -1; /* don't save or restore the original file time */
int foreground; /* set if program run in foreground */
@@ -1770,13 +1770,25 @@
// char **argv;
int gzip_main(int argc, char ** argv)
{
-
+ int result;
int inFileNum;
int outFileNum;
+ struct stat statBuf;
+ char* delFileName;
+ int tostdout = 0;
+ int fromstdin = 0;
+
+ if (argc==1)
+ usage(gzip_usage);
/* Parse any options */
while (--argc > 0 && **(++argv) == '-') {
+ if (*((*argv)+1) == '\0') {
+ fromstdin = 1;
+ tostdout = 1;
+ }
while (*(++(*argv))) {
+ fprintf(stderr, "**argv='%c'\n", **argv);
switch (**argv) {
case 'c':
tostdout = 1;
@@ -1817,18 +1829,40 @@
ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
#endif
+ if (fromstdin==1) {
+ strcpy(ofname, "stdin");
+
+ inFileNum=fileno(stdin);
+ time_stamp = 0; /* time unknown by default */
+ ifile_size = -1L; /* convention for unknown size */
+ } else {
+ /* Open up the input file */
+ if (*argv=='\0')
+ usage(gzip_usage);
+ strncpy(ifname, *argv, MAX_PATH_LEN);
+
+ /* Open input fille */
+ inFileNum=open( ifname, O_RDONLY);
+ if (inFileNum < 0) {
+ perror(ifname);
+ do_exit(WARNING);
+ }
+ /* Get the time stamp on the input file. */
+ result = stat(ifname, &statBuf);
+ if (result < 0) {
+ perror(ifname);
+ do_exit(WARNING);
+ }
+ time_stamp = statBuf.st_ctime;
+ ifile_size = statBuf.st_size;
+ }
+
+
if (tostdout==1) {
/* And get to work */
- SET_BINARY_MODE(fileno(stdout));
- strcpy(ifname, "stdin");
strcpy(ofname, "stdout");
- inFileNum=fileno(stdin);
outFileNum=fileno(stdout);
-
- /* Get the time stamp on the input file. */
- time_stamp = 0; /* time unknown by default */
-
- ifile_size = -1L; /* convention for unknown size */
+ SET_BINARY_MODE(fileno(stdout));
clear_bufs(); /* clear input and output buffers */
part_nb = 0;
@@ -1837,44 +1871,39 @@
zip(inFileNum, outFileNum);
} 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);
+ strncpy(ofname, ifname, 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);
+ /* Open output fille */
+ outFileNum=open( ofname, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW);
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 */
+ /* Set permissions on the file */
+ fchmod(outFileNum, statBuf.st_mode);
clear_bufs(); /* clear input and output buffers */
part_nb = 0;
/* Actually do the compression/decompression. */
- zip(inFileNum, outFileNum);
+ result=zip(inFileNum, outFileNum);
+ close( outFileNum);
+ close( inFileNum);
+ /* Delete the original file */
+ if (result == OK)
+ delFileName=ifname;
+ else
+ delFileName=ofname;
+
+ if (unlink (delFileName) < 0) {
+ perror (delFileName);
+ exit( FALSE);
+ }
}
do_exit(exit_code);
@@ -3198,6 +3227,7 @@
/* Write the header to the gzip file. See algorithm.doc for the format */
+
method = DEFLATED;
put_byte(GZIP_MAGIC[0]); /* magic header */
put_byte(GZIP_MAGIC[1]);
