Rework per how I did things in version in 0.60.3 so it can

properly uncompress multiple files now.
 -Erik

diff --git a/archival/gunzip.c b/archival/gunzip.c
index dde6701674d56cb7fe377104d81d0636bd49c8a3..e40982cd15a25784ec9ab12cc4cab5653d46c906 100644 (file)
--- a/archival/gunzip.c
+++ b/archival/gunzip.c
@@ -68,27 +68,22 @@ static char *license_msg[] = {
 
 extern int gunzip_main(int argc, char **argv)
 {
-       FILE *in_file = stdin;
-       FILE *out_file = NULL;
+       int flags = 0;
+       int opt = 0;
+       int delete_old_file, file_count;
        struct stat stat_buf;
-
-       char *if_name = NULL;
-       char *of_name = NULL;
-       char *delete_file_name = NULL;
-
+       FILE *in_file, *out_file;
+       char *if_name, *of_name, *delete_file_name;
        const int gunzip_to_stdout = 1;
        const int gunzip_force = 2;
        const int gunzip_test = 4;
-
-       int flags = 0;
-       int opt = 0;
-       int delete_old_file = FALSE;
+       const int gunzip_verbose = 8;
 
        /* if called as zcat */
        if (strcmp(applet_name, "zcat") == 0)
                flags |= gunzip_to_stdout;
 
-       while ((opt = getopt(argc, argv, "ctfhdq")) != -1) {
+       while ((opt = getopt(argc, argv, "ctfhdqv")) != -1) {
                switch (opt) {
                case 'c':
                        flags |= gunzip_to_stdout;
@@ -99,6 +94,9 @@ extern int gunzip_main(int argc, char **argv)
                case 't':
                        flags |= gunzip_test;
                        break;
+               case 'v':
+                       flags |= gunzip_verbose;
+                       break;
                case 'd': /* Used to convert gzip to gunzip. */
                        break;
                case 'q':
@@ -110,74 +108,95 @@ extern int gunzip_main(int argc, char **argv)
                }
        }
 
-       /* Set input filename and number */
-       if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
-               flags |= gunzip_to_stdout;
-       } else {
-               if_name = xstrdup(argv[optind]);
-               /* Open input file */
-               in_file = xfopen(if_name, "r");
+       file_count = argc - optind;
+       while (file_count==0 || optind < argc) {
+               in_file = stdin;
+               out_file = NULL;
+               if_name = NULL;
+               of_name = NULL;
+               delete_file_name = NULL;
+               delete_old_file = FALSE;
+
+               /* Set input filename and number */
+               if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
+                       flags |= gunzip_to_stdout;
+                       /* Skip to the end */
+                       optind = argc;
+               } else {
+                       if_name = strdup(argv[optind]);
+                       /* Open input file */
+                       in_file = xfopen(if_name, "r");
 
-               /* set the buffer size */
-               setvbuf(in_file, NULL, _IOFBF, 0x8000);
+                       if (flags & gunzip_verbose) {
+                               fprintf(stderr, "%s:\t", if_name);
+                       }
 
-               /* Get the time stamp on the input file. */
-               if (stat(if_name, &stat_buf) < 0) {
-                       error_msg_and_die("Couldn't stat file %s", if_name);
-               }
-       }
+                       /* set the buffer size */
+                       setvbuf(in_file, NULL, _IOFBF, 0x8000);
 
-       /* Check that the input is sane.  */
-       if (isatty(fileno(in_file)) && (flags & gunzip_force) == 0)
-               error_msg_and_die("compressed data not read from terminal.  Use -f to force it.");
-
-       /* Set output filename and number */
-       if (flags & gunzip_test) {
-               out_file = xfopen("/dev/null", "w"); /* why does test use filenum 2 ? */
-       } else if (flags & gunzip_to_stdout) {
-               out_file = stdout;
-       } else {
-               char *extension;
-               int length = strlen(if_name);
-
-               delete_old_file = TRUE;
-               extension = strrchr(if_name, '.');
-               if (extension && strcmp(extension, ".gz") == 0) {
-                       length -= 3;
-               } else if (extension && strcmp(extension, ".tgz") == 0) {
-                       length -= 4;
-               } else {
-                       error_msg_and_die("Invalid extension");
+                       /* Get the time stamp on the input file. */
+                       if (stat(if_name, &stat_buf) < 0) {
+                               error_msg_and_die("Couldn't stat file %s", if_name);
+                       }
                }
-               of_name = (char *) xcalloc(sizeof(char), length + 1);
-               strncpy(of_name, if_name, length);
 
-               /* Open output file */
-               out_file = xfopen(of_name, "w");
+               /* Check that the input is sane.  */
+               if (isatty(fileno(in_file)) && (flags & gunzip_force) == 0)
+                       error_msg_and_die("compressed data not read from terminal.  Use -f to force it.");
 
-               /* Set permissions on the file */
-               chmod(of_name, stat_buf.st_mode);
-       }
+               /* Set output filename and number */
+               if (flags & gunzip_test) {
+                       out_file = xfopen("/dev/null", "w"); /* why does test use filenum 2 ? */
+               } else if (flags & gunzip_to_stdout) {
+                       out_file = stdout;
+               } else {
+                       char *extension;
+                       int length = strlen(if_name);
+
+                       delete_old_file = TRUE;
+                       extension = strrchr(if_name, '.');
+                       if (extension && strcmp(extension, ".gz") == 0) {
+                               length -= 3;
+                       } else if (extension && strcmp(extension, ".tgz") == 0) {
+                               length -= 4;
+                       } else {
+                               error_msg_and_die("Invalid extension");
+                       }
+                       of_name = (char *) xcalloc(sizeof(char), length + 1);
+                       strncpy(of_name, if_name, length);
+
+                       /* Open output file */
+                       out_file = xfopen(of_name, "w");
+
+                       /* Set permissions on the file */
+                       chmod(of_name, stat_buf.st_mode);
+               }
 
-       /* do the decompression, and cleanup */
-       if (unzip(in_file, out_file) == 0) {
-               /* Success, remove .gz file */
-               delete_file_name = if_name;
-       } else {
-               /* remove failed attempt */
-               delete_file_name = of_name;
-       }
+               /* do the decompression, and cleanup */
+               if (unzip(in_file, out_file) == 0) {
+                       /* Success, remove .gz file */
+                       delete_file_name = if_name;
+                       if (flags & gunzip_verbose) {
+                               fprintf(stderr, "OK\n");
+                       }
+               } else {
+                       /* remove failed attempt */
+                       delete_file_name = of_name;
+               }
 
-       fclose(out_file);
-       fclose(in_file);
+               fclose(out_file);
+               fclose(in_file);
 
-       if (delete_old_file) {
-               if (unlink(delete_file_name) < 0) {
-                       error_msg_and_die("Couldnt remove %s", delete_file_name);
+               if (delete_old_file == TRUE && !(flags & gunzip_test)) {
+                       if (unlink(delete_file_name) < 0) {
+                               error_msg_and_die("Couldnt remove %s", delete_file_name);
+                       }
                }
-       }
 
-       free(of_name);
+               free(of_name);
+               optind++;
+       }      /* while () */
 
        return(EXIT_SUCCESS);
 }
+