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Diffstat (limited to 'regress/mkdtemp.c')
-rw-r--r-- | regress/mkdtemp.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/regress/mkdtemp.c b/regress/mkdtemp.c new file mode 100644 index 0000000..a7be1bd --- /dev/null +++ b/regress/mkdtemp.c @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2017 Colin Watson <cjwatson@debian.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* Roughly equivalent to "mktemp -d -t TEMPLATE", but portable. */ + +#include "includes.h" + +#include <limits.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "log.h" + +static void +usage(void) +{ + fprintf(stderr, "mkdtemp template\n"); + exit(1); +} + +int +main(int argc, char **argv) +{ + const char *base; + const char *tmpdir; + char template[PATH_MAX]; + int r; + char *dir; + + if (argc != 2) + usage(); + base = argv[1]; + + if ((tmpdir = getenv("TMPDIR")) == NULL) + tmpdir = "/tmp"; + r = snprintf(template, sizeof(template), "%s/%s", tmpdir, base); + if (r < 0 || (size_t)r >= sizeof(template)) + fatal("template string too long"); + dir = mkdtemp(template); + if (dir == NULL) { + perror("mkdtemp"); + exit(1); + } + puts(dir); + return 0; +} |