rm_r.c revision 256281
1132956Smarkm/*- 2132956Smarkm * Copyright (C) 1996 3132956Smarkm * David L. Nugent. All rights reserved. 4132956Smarkm * 5132956Smarkm * Redistribution and use in source and binary forms, with or without 6132956Smarkm * modification, are permitted provided that the following conditions 7132956Smarkm * are met: 8132956Smarkm * 1. Redistributions of source code must retain the above copyright 9132956Smarkm * notice, this list of conditions and the following disclaimer. 10132956Smarkm * 2. Redistributions in binary form must reproduce the above copyright 11132956Smarkm * notice, this list of conditions and the following disclaimer in the 12132956Smarkm * documentation and/or other materials provided with the distribution. 13132956Smarkm * 14132956Smarkm * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15132956Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16132956Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17132956Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18132956Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19132956Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20132956Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21132956Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22132956Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23132956Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24132956Smarkm * SUCH DAMAGE. 25132956Smarkm */ 26132956Smarkm 27132956Smarkm#ifndef lint 28207329Sattiliostatic const char rcsid[] = 29207329Sattilio "$FreeBSD: stable/10/usr.sbin/pw/rm_r.c 243897 2012-12-05 13:56:52Z eadler $"; 30132956Smarkm#endif /* not lint */ 31207329Sattilio 32207329Sattilio#include <stdio.h> 33207329Sattilio#include <stdlib.h> 34207329Sattilio#include <string.h> 35207329Sattilio#include <sys/types.h> 36207329Sattilio#include <sys/stat.h> 37207329Sattilio#include <sys/param.h> 38207329Sattilio#include <unistd.h> 39207329Sattilio#include <dirent.h> 40207329Sattilio 41207329Sattilio#include "pwupd.h" 42207329Sattilio 43207329Sattiliovoid 44207329Sattiliorm_r(char const * dir, uid_t uid) 45207329Sattilio{ 46207329Sattilio DIR *d = opendir(dir); 47 48 if (d != NULL) { 49 struct dirent *e; 50 struct stat st; 51 char file[MAXPATHLEN]; 52 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 } 74 } 75} 76