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samba-mirror/lib/util/mkdir_p.c
Andreas Schneider 7cec343a89 lib:util: Fix string check in mkdir_p()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13437

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2018-05-17 17:30:09 +02:00

71 lines
1.5 KiB
C

/*
mkdir -p
Copyright (C) Amitay Isaacs 2014
Copyright (C) Martin Schwenke 2014
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include <sys/stat.h>
#include <libgen.h>
#include "mkdir_p.h"
int mkdir_p(const char *dir, int mode)
{
char t[PATH_MAX];
ssize_t len;
int ret;
if (strcmp(dir, "/") == 0) {
return 0;
}
if (strcmp(dir, ".") == 0) {
return 0;
}
/* Try to create directory */
ret = mkdir(dir, mode);
/* Succeed if that worked or if it already existed */
if (ret == 0 || errno == EEXIST) {
return 0;
}
/* Fail on anything else except ENOENT */
if (errno != ENOENT) {
return ret;
}
/* Create ancestors */
len = strlen(dir);
ret = snprintf(t, sizeof(t), "%s", dir);
if (ret != len) {
errno = ENAMETOOLONG;
return -1;
}
ret = mkdir_p(dirname(t), mode);
if (ret != 0) {
return ret;
}
/* Create directory */
ret = mkdir(dir, mode);
if ((ret == -1) && (errno == EEXIST)) {
ret = 0;
}
return ret;
}