diff options
Diffstat (limited to 'archival/unzip.c')
| -rw-r--r-- | archival/unzip.c | 137 |
1 files changed, 70 insertions, 67 deletions
diff --git a/archival/unzip.c b/archival/unzip.c index c1b945a44..380674701 100644 --- a/archival/unzip.c +++ b/archival/unzip.c @@ -20,11 +20,11 @@ */ //usage:#define unzip_trivial_usage -//usage: "[-opts[modifiers]] FILE[.zip] [LIST] [-x XLIST] [-d DIR]" +//usage: "[-lnopq] FILE[.zip] [LIST] [-x XLIST] [-d DIR]" //usage:#define unzip_full_usage "\n\n" //usage: "Extract files from ZIP archives\n" //usage: "\n -l List archive contents (with -q for short form)" -//usage: "\n -n Never overwrite files (default)" +//usage: "\n -n Never overwrite files (default: ask)" //usage: "\n -o Overwrite" //usage: "\n -p Send output to stdout" //usage: "\n -q Quiet" @@ -277,6 +277,7 @@ int unzip_main(int argc, char **argv) IF_NOT_DESKTOP(const) smallint verbose = 0; smallint listing = 0; smallint overwrite = O_PROMPT; + smallint x_opt_seen; #if ENABLE_DESKTOP uint32_t cdf_offset; #endif @@ -290,7 +291,6 @@ int unzip_main(int argc, char **argv) llist_t *zreject = NULL; char *base_dir = NULL; int i, opt; - int opt_range = 0; char key_buf[80]; struct stat stat_buf; @@ -335,81 +335,81 @@ int unzip_main(int argc, char **argv) * 204372 1 file */ + x_opt_seen = 0; /* '-' makes getopt return 1 for non-options */ while ((opt = getopt(argc, argv, "-d:lnopqxv")) != -1) { - switch (opt_range) { - case 0: /* Options */ - switch (opt) { - case 'l': /* List */ - listing = 1; - break; + switch (opt) { + case 'd': /* Extract to base directory */ + base_dir = optarg; + break; - case 'n': /* Never overwrite existing files */ - overwrite = O_NEVER; - break; + case 'l': /* List */ + listing = 1; + break; - case 'o': /* Always overwrite existing files */ - overwrite = O_ALWAYS; - break; + case 'n': /* Never overwrite existing files */ + overwrite = O_NEVER; + break; - case 'p': /* Extract files to stdout and fall through to set verbosity */ - dst_fd = STDOUT_FILENO; + case 'o': /* Always overwrite existing files */ + overwrite = O_ALWAYS; + break; - case 'q': /* Be quiet */ - quiet++; - break; + case 'p': /* Extract files to stdout and fall through to set verbosity */ + dst_fd = STDOUT_FILENO; - case 'v': /* Verbose list */ - IF_DESKTOP(verbose++;) - listing = 1; - break; + case 'q': /* Be quiet */ + quiet++; + break; - case 1: /* The zip file */ - /* +5: space for ".zip" and NUL */ - src_fn = xmalloc(strlen(optarg) + 5); - strcpy(src_fn, optarg); - opt_range++; - break; + case 'v': /* Verbose list */ + IF_DESKTOP(verbose++;) + listing = 1; + break; - default: - bb_show_usage(); - } + case 'x': + x_opt_seen = 1; break; - case 1: /* Include files */ - if (opt == 1) { + case 1: + if (!src_fn) { + /* The zip file */ + /* +5: space for ".zip" and NUL */ + src_fn = xmalloc(strlen(optarg) + 5); + strcpy(src_fn, optarg); + } else if (!x_opt_seen) { + /* Include files */ llist_add_to(&zaccept, optarg); - break; - } - if (opt == 'd') { - base_dir = optarg; - opt_range += 2; - break; - } - if (opt == 'x') { - opt_range++; - break; - } - bb_show_usage(); - - case 2 : /* Exclude files */ - if (opt == 1) { + } else { + /* Exclude files */ llist_add_to(&zreject, optarg); - break; } - if (opt == 'd') { /* Extract to base directory */ - base_dir = optarg; - opt_range++; - break; - } - /* fall through */ + break; default: bb_show_usage(); } } - if (src_fn == NULL) { +#ifndef __GLIBC__ + /* + * This code is needed for non-GNU getopt + * which doesn't understand "-" in option string. + * The -x option won't work properly in this case: + * "unzip a.zip q -x w e" will be interpreted as + * "unzip a.zip q w e -x" = "unzip a.zip q w e" + */ + argv += optind; + if (argv[0]) { + /* +5: space for ".zip" and NUL */ + src_fn = xmalloc(strlen(argv[0]) + 5); + strcpy(src_fn, argv[0]); + while (*++argv) + llist_add_to(&zaccept, *argv); + } +#endif + + if (!src_fn) { bb_show_usage(); } @@ -420,17 +420,20 @@ int unzip_main(int argc, char **argv) if (overwrite == O_PROMPT) overwrite = O_NEVER; } else { - static const char extn[][5] = {"", ".zip", ".ZIP"}; - int orig_src_fn_len = strlen(src_fn); - int src_fd = -1; + static const char extn[][5] = { ".zip", ".ZIP" }; + char *ext = src_fn + strlen(src_fn); + int src_fd; - for (i = 0; (i < 3) && (src_fd == -1); i++) { - strcpy(src_fn + orig_src_fn_len, extn[i]); + i = 0; + for (;;) { src_fd = open(src_fn, O_RDONLY); - } - if (src_fd == -1) { - src_fn[orig_src_fn_len] = '\0'; - bb_error_msg_and_die("can't open %s, %s.zip, %s.ZIP", src_fn, src_fn, src_fn); + if (src_fd >= 0) + break; + if (++i > 2) { + *ext = '\0'; + bb_error_msg_and_die("can't open %s[.zip]", src_fn); + } + strcpy(ext, extn[i - 1]); } xmove_fd(src_fd, zip_fd); } |