| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version 2 |
| 7 | * of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #define _GNU_SOURCE |
| 20 | #include <errno.h> |
| 21 | #include <limits.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <sys/types.h> |
| 26 | #include <sys/stat.h> |
| 27 | #include <unistd.h> |
| 28 | |
| 29 | #include "utils.h" |
| 30 | |
| 31 | int mkdir_recursive(const char *path, mode_t mode) |
| 32 | { |
| 33 | int ret; |
| 34 | char *p, tmp[PATH_MAX]; |
| 35 | size_t len; |
| 36 | mode_t old_umask; |
| 37 | |
| 38 | ret = snprintf(tmp, sizeof(tmp), "%s", path); |
| 39 | if (ret < 0) { |
| 40 | perror("snprintf mkdir"); |
| 41 | goto error; |
| 42 | } |
| 43 | |
| 44 | len = ret; |
| 45 | if (tmp[len - 1] == '/') { |
| 46 | tmp[len - 1] = 0; |
| 47 | } |
| 48 | |
| 49 | old_umask = umask(0); |
| 50 | for (p = tmp + 1; *p; p++) { |
| 51 | if (*p == '/') { |
| 52 | *p = 0; |
| 53 | ret = mkdir(tmp, mode); |
| 54 | if (ret < 0) { |
| 55 | if (!(errno == EEXIST)) { |
| 56 | perror("mkdir recursive"); |
| 57 | ret = errno; |
| 58 | goto umask_error; |
| 59 | } |
| 60 | } |
| 61 | *p = '/'; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | ret = mkdir(tmp, mode); |
| 66 | if (ret < 0) { |
| 67 | ret = errno; |
| 68 | } |
| 69 | |
| 70 | umask_error: |
| 71 | umask(old_umask); |
| 72 | error: |
| 73 | return ret; |
| 74 | } |