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 28 static const char rcsid[] = 29 "$Id$"; 30 #endif /* not lint */ 31 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <sys/types.h> 35 #include <sys/stat.h> 36 #include <sys/param.h> 37 #include <unistd.h> 38 #include <dirent.h> 39 40 #include "pwupd.h" 41 42 void 43 rm_r(char const * dir, uid_t uid) 44 { 45 DIR *d = opendir(dir); 46 47 if (d != NULL) { 48 struct dirent *e; 49 struct stat st; 50 char file[MAXPATHLEN]; 51 52 while ((e = readdir(d)) != NULL) { 53 if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0) { 54 sprintf(file, "%s/%s", dir, e->d_name); 55 if (lstat(file, &st) == 0) { /* Need symlinks, not 56 * linked file */ 57 if (S_ISDIR(st.st_mode)) /* Directory - recurse */ 58 rm_r(file, uid); 59 else { 60 if (S_ISLNK(st.st_mode) || st.st_uid == uid) 61 remove(file); 62 } 63 } 64 } 65 } 66 closedir(d); 67 if (lstat(dir, &st) == 0) { 68 if (S_ISLNK(st.st_mode)) 69 remove(dir); 70 else if (st.st_uid == uid) 71 rmdir(dir); 72 } 73 } 74 } 75