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/* $OpenBSD: mktemp.c,v 1.22 2015/10/09 01:37:08 deraadt Exp $ */ |
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/* |
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* Copyright (c) 1996, 1997, 2001-2003, 2013 |
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* Todd C. Miller <Todd.Miller@courtesan.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <err.h> |
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#include <paths.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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__dead void usage(void); |
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__dead void fatal(const char *, ...) __attribute__((__format__(printf, 1, 2))); |
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__dead void fatalx(const char *, ...) __attribute__((__format__(printf, 1, 2))); |
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static int quiet; |
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int |
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main(int argc, char *argv[]) |
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{ |
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int ch, fd, uflag = 0, tflag = 0, makedir = 0; |
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char *cp, *template, *tempfile, *prefix = _PATH_TMP; |
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size_t len; |
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✗✓ |
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if (pledge("stdio rpath wpath cpath", NULL) == -1) |
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err(1, "pledge"); |
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✓✓ |
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while ((ch = getopt(argc, argv, "dp:qtu")) != -1) |
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✓✗✗✗
✗✗ |
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switch(ch) { |
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case 'd': |
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makedir = 1; |
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break; |
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case 'p': |
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prefix = optarg; |
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tflag = 1; |
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break; |
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case 'q': |
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quiet = 1; |
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break; |
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case 't': |
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tflag = 1; |
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break; |
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case 'u': |
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uflag = 1; |
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break; |
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default: |
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usage(); |
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} |
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/* If no template specified use a default one (implies -t mode) */ |
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✓✗✗ |
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switch (argc - optind) { |
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case 1: |
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template = argv[optind]; |
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break; |
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case 0: |
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template = "tmp.XXXXXXXXXX"; |
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tflag = 1; |
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break; |
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default: |
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usage(); |
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} |
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len = strlen(template); |
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✓✗✗✓
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if (len < 6 || strcmp(&template[len - 6], "XXXXXX")) { |
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fatalx("insufficient number of Xs in template `%s'", |
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template); |
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} |
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✗✓ |
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if (tflag) { |
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if (strchr(template, '/')) { |
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fatalx("template must not contain directory " |
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"separators in -t mode"); |
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} |
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cp = getenv("TMPDIR"); |
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if (cp != NULL && *cp != '\0') |
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prefix = cp; |
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len = strlen(prefix); |
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while (len != 0 && prefix[len - 1] == '/') |
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len--; |
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if (asprintf(&tempfile, "%.*s/%s", (int)len, prefix, template) < 0) |
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tempfile = NULL; |
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} else |
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tempfile = strdup(template); |
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✗✓ |
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if (tempfile == NULL) |
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fatalx("cannot allocate memory"); |
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✓✗ |
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if (makedir) { |
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✗✓ |
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if (mkdtemp(tempfile) == NULL) |
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fatal("cannot make temp dir %s", tempfile); |
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✗✓ |
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if (uflag) |
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(void)rmdir(tempfile); |
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} else { |
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if ((fd = mkstemp(tempfile)) < 0) |
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fatal("cannot make temp file %s", tempfile); |
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(void)close(fd); |
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if (uflag) |
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(void)unlink(tempfile); |
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} |
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(void)puts(tempfile); |
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free(tempfile); |
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exit(EXIT_SUCCESS); |
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} |
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__dead void |
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fatal(const char *fmt, ...) |
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{ |
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if (!quiet) { |
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va_list ap; |
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va_start(ap, fmt); |
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vwarn(fmt, ap); |
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va_end(ap); |
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} |
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exit(EXIT_FAILURE); |
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} |
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__dead void |
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fatalx(const char *fmt, ...) |
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{ |
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if (!quiet) { |
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va_list ap; |
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va_start(ap, fmt); |
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vwarnx(fmt, ap); |
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va_end(ap); |
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} |
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exit(EXIT_FAILURE); |
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} |
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__dead void |
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usage(void) |
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{ |
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extern char *__progname; |
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(void)fprintf(stderr, |
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"usage: %s [-dqtu] [-p directory] [template]\n", __progname); |
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exit(EXIT_FAILURE); |
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} |