1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 1996 5 * David L. Nugent. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <err.h> 30 #include <grp.h> 31 #include <libutil.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 36 #include "pwupd.h" 37 38 char * 39 getgrpath(const char * file) 40 { 41 static char pathbuf[MAXPATHLEN]; 42 43 snprintf(pathbuf, sizeof pathbuf, "%s/%s", conf.etcpath, file); 44 45 return (pathbuf); 46 } 47 48 static int 49 gr_update(struct group * grp, char const * group) 50 { 51 int pfd, tfd; 52 struct group *gr = NULL; 53 struct group *old_gr = NULL; 54 55 if (grp != NULL) 56 gr = gr_dup(grp); 57 58 if (group != NULL) 59 old_gr = GETGRNAM(group); 60 61 if (gr_init(conf.etcpath, NULL)) 62 err(1, "gr_init()"); 63 64 if ((pfd = gr_lock()) == -1) { 65 gr_fini(); 66 err(1, "gr_lock()"); 67 } 68 if ((tfd = gr_tmp(-1)) == -1) { 69 gr_fini(); 70 err(1, "gr_tmp()"); 71 } 72 if (gr_copy(pfd, tfd, gr, old_gr) == -1) { 73 gr_fini(); 74 close(tfd); 75 err(1, "gr_copy()"); 76 } 77 fsync(tfd); 78 close(tfd); 79 if (gr_mkdb() == -1) { 80 gr_fini(); 81 err(1, "gr_mkdb()"); 82 } 83 free(gr); 84 gr_fini(); 85 return 0; 86 } 87 88 89 int 90 addgrent(struct group * grp) 91 { 92 return gr_update(grp, NULL); 93 } 94 95 int 96 chggrent(char const * login, struct group * grp) 97 { 98 return gr_update(grp, login); 99 } 100 101 int 102 delgrent(struct group * grp) 103 { 104 105 return (gr_update(NULL, grp->gr_name)); 106 } 107