1/*- 2 * Copyright (C) 1996 3 * David L. Nugent. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#ifndef lint 28static const char rcsid[] =
| 1/*- 2 * Copyright (C) 1996 3 * David L. Nugent. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#ifndef lint 28static const char rcsid[] =
|
29 "$FreeBSD: head/usr.sbin/pw/rm_r.c 243897 2012-12-05 13:56:52Z eadler $";
| 29 "$FreeBSD: head/usr.sbin/pw/rm_r.c 285433 2015-07-12 21:43:57Z bapt $";
|
30#endif /* not lint */ 31 32#include <stdio.h> 33#include <stdlib.h> 34#include <string.h> 35#include <sys/types.h> 36#include <sys/stat.h> 37#include <sys/param.h> 38#include <unistd.h> 39#include <dirent.h>
| 30#endif /* not lint */ 31 32#include <stdio.h> 33#include <stdlib.h> 34#include <string.h> 35#include <sys/types.h> 36#include <sys/stat.h> 37#include <sys/param.h> 38#include <unistd.h> 39#include <dirent.h>
|
| 40#include <fcntl.h>
|
40 41#include "pwupd.h" 42 43void
| 41 42#include "pwupd.h" 43 44void
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44rm_r(char const * dir, uid_t uid)
| 45rm_r(int rootfd, const char *path, uid_t uid)
|
45{
| 46{
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46 DIR *d = opendir(dir);
| 47 int dirfd; 48 DIR *d; 49 struct dirent *e; 50 struct stat st;
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47
| 51
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48 if (d != NULL) { 49 struct dirent *e; 50 struct stat st; 51 char file[MAXPATHLEN];
| 52 if (*path == '/') 53 path++;
|
52
| 54
|
53 while ((e = readdir(d)) != NULL) { 54 if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0) { 55 snprintf(file, sizeof(file), "%s/%s", dir, e->d_name); 56 if (lstat(file, &st) == 0) { /* Need symlinks, not 57 * linked file */ 58 if (S_ISDIR(st.st_mode)) /* Directory - recurse */ 59 rm_r(file, uid); 60 else { 61 if (S_ISLNK(st.st_mode) || st.st_uid == uid) 62 remove(file); 63 } 64 } 65 } 66 } 67 closedir(d); 68 if (lstat(dir, &st) == 0) { 69 if (S_ISLNK(st.st_mode)) 70 remove(dir); 71 else if (st.st_uid == uid) 72 rmdir(dir); 73 }
| 55 dirfd = openat(rootfd, path, O_DIRECTORY); 56 57 d = fdopendir(dirfd); 58 while ((e = readdir(d)) != NULL) { 59 if (strcmp(e->d_name, ".") == 0 || strcmp(e->d_name, "..") == 0) 60 continue; 61 62 if (fstatat(dirfd, e->d_name, &st, AT_SYMLINK_NOFOLLOW) != 0) 63 continue; 64 if (S_ISDIR(st.st_mode)) 65 rm_r(dirfd, e->d_name, uid); 66 else if (S_ISLNK(st.st_mode) || st.st_uid == uid) 67 unlinkat(dirfd, e->d_name, 0);
|
74 }
| 68 }
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| 69 closedir(d); 70 if (fstatat(rootfd, path, &st, AT_SYMLINK_NOFOLLOW) != 0) 71 return; 72 unlinkat(rootfd, path, S_ISDIR(st.st_mode) ? AT_REMOVEDIR : 0);
|
75}
| 73}
|