libarchive: open_zipped() does not need to check extensions for e.g. gzip

[oweals/busybox.git] / debianutils / mktemp.c

diff --git a/debianutils/mktemp.c b/debianutils/mktemp.c
index de27d3023854f0536c117c6aa6f52828d6924923..983d7a246595c225e2a3011ae794286926fba9e3 100644 (file)
--- a/debianutils/mktemp.c
+++ b/debianutils/mktemp.c
@@ -6,7 +6,7 @@
  * Copyright (C) 2000 by Daniel Jacobowitz
  * Written by Daniel Jacobowitz <dan@debian.org>
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
 /* Coreutils 6.12 man page says:
@@ -31,39 +31,83 @@
  *        -p; else /tmp [deprecated]
  */
 
+//usage:#define mktemp_trivial_usage
+//usage:       "[-dt] [-p DIR] [TEMPLATE]"
+//usage:#define mktemp_full_usage "\n\n"
+//usage:       "Create a temporary file with name based on TEMPLATE and print its name.\n"
+//usage:       "TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).\n"
+//usage:       "Without TEMPLATE, -t tmp.XXXXXX is assumed.\n"
+//usage:     "\n       -d      Make directory, not file"
+//usage:     "\n       -q      Fail silently on errors"
+//usage:     "\n       -t      Prepend base directory name to TEMPLATE"
+//usage:     "\n       -p DIR  Use DIR as a base directory (implies -t)"
+//usage:     "\n       -u      Do not create anything; print a name"
+//usage:     "\n"
+//usage:     "\nBase directory is: -p DIR, else $TMPDIR, else /tmp"
+//usage:
+//usage:#define mktemp_example_usage
+//usage:       "$ mktemp /tmp/temp.XXXXXX\n"
+//usage:       "/tmp/temp.mWiLjM\n"
+//usage:       "$ ls -la /tmp/temp.mWiLjM\n"
+//usage:       "-rw-------    1 andersen andersen        0 Apr 25 17:10 /tmp/temp.mWiLjM\n"
 
 #include "libbb.h"
 
 int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int mktemp_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int mktemp_main(int argc UNUSED_PARAM, char **argv)
 {
        const char *path;
        char *chp;
-       unsigned opt;
+       unsigned opts;
+       enum {
+               OPT_d = 1 << 0,
+               OPT_q = 1 << 1,
+               OPT_t = 1 << 2,
+               OPT_p = 1 << 3,
+               OPT_u = 1 << 4,
+       };
+
+       path = getenv("TMPDIR");
+       if (!path || path[0] == '\0')
+               path = "/tmp";
 
        opt_complementary = "?1"; /* 1 argument max */
-       opt = getopt32(argv, "dqtp:", &path);
-       chp = argv[optind] ? argv[optind] : xstrdup("tmp.XXXXXXXXXX");
+       opts = getopt32(argv, "dqtp:u", &path);
 
-       if (opt & (4|8)) { /* -t and/or -p */
-               const char *dir = getenv("TMPDIR");
-               if (dir && *dir != '\0')
-                       path = dir;
-               else if (!(opt & 8)) /* no -p */
-                       path = "/tmp/";
-               /* else path comes from -p DIR */
-               chp = concat_path_file(path, chp);
+       chp = argv[optind];
+       if (!chp) {
+               /* GNU coreutils 8.4:
+                * bare "mktemp" -> "mktemp -t tmp.XXXXXX"
+                */
+               chp = xstrdup("tmp.XXXXXX");
+               opts |= OPT_t;
+       }
+#if 0
+       /* Don't allow directory separator in template */
+       if ((opts & OPT_t) && bb_basename(chp) != chp) {
+               errno = EINVAL;
+               goto error;
        }
+#endif
+       if (opts & (OPT_t|OPT_p))
+               chp = concat_path_file(path, chp);
 
-       if (opt & 1) { /* -d */
+       if (opts & OPT_u) {
+               chp = mktemp(chp);
+               if (chp[0] == '\0')
+                       goto error;
+       } else if (opts & OPT_d) {
                if (mkdtemp(chp) == NULL)
-                       return EXIT_FAILURE;
+                       goto error;
        } else {
                if (mkstemp(chp) < 0)
-                       return EXIT_FAILURE;
+                       goto error;
        }
-
        puts(chp);
-
        return EXIT_SUCCESS;
+ error:
+       if (opts & OPT_q)
+               return EXIT_FAILURE;
+       /* don't use chp as it gets mangled in case of error */
+       bb_perror_nomsg_and_die();
 }