diff options
author | Ingo Schwarze <schwarze@openbsd.org> | 2015-03-19 14:57:29 +0000 |
---|---|---|
committer | Ingo Schwarze <schwarze@openbsd.org> | 2015-03-19 14:57:29 +0000 |
commit | 7ca732f0714b3bdace7b2642923a7a0f4919e2d2 (patch) | |
tree | 8d66dea3252ded4b8c1e6013dc2e6da90a2e01b8 /compat_mkdtemp.c | |
parent | 848d9655dd5206e4226d27ca67bb9160d22fbc01 (diff) | |
download | mandoc-7ca732f0714b3bdace7b2642923a7a0f4919e2d2.tar.gz mandoc-7ca732f0714b3bdace7b2642923a7a0f4919e2d2.tar.zst mandoc-7ca732f0714b3bdace7b2642923a7a0f4919e2d2.zip |
Compat glue needed for Solaris 9 and 10.
Thanks to Sevan Janiyan <venture37 at geeklan dot co dot uk> for
reporting the Solaris 10 issues, to Jan Holzhueter <jh at opencsw
dot org> for some additional insight, and to OpenCSW in general for
providing me with a Solaris 9/10/11 testing environment.
Diffstat (limited to 'compat_mkdtemp.c')
-rw-r--r-- | compat_mkdtemp.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/compat_mkdtemp.c b/compat_mkdtemp.c new file mode 100644 index 00000000..cc336e54 --- /dev/null +++ b/compat_mkdtemp.c @@ -0,0 +1,61 @@ +#include "config.h" + +#if HAVE_MKDTEMP + +int dummy; + +#else + +/* $Id: compat_mkdtemp.c,v 1.1 2015/03/19 14:57:29 schwarze Exp $ */ +/* + * Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.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. + * + * The algorithm of this function is inspired by OpenBSD mkdtemp(3) + * by Theo de Raadt and Todd Miller, but the code differs. + */ + +#include <sys/stat.h> +#include <errno.h> +#include <limits.h> +#include <stdlib.h> +#include <string.h> + +char * +mkdtemp(char *path) +{ + char *start, *cp; + unsigned int tries; + + start = strchr(path, '\0'); + while (start > path && start[-1] == 'X') + start--; + + for (tries = INT_MAX; tries; tries--) { + if (mktemp(path) == NULL) { + errno = EEXIST; + return(NULL); + } + if (mkdir(path, S_IRUSR | S_IWUSR | S_IXUSR) == 0) + return(path); + if (errno != EEXIST) + return(NULL); + for (cp = start; *cp != '\0'; cp++) + *cp = 'X'; + } + errno = EEXIST; + return(NULL); +} + +#endif |