1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 #ifndef lint 30 static const char rcsid[] = 31 "$FreeBSD$"; 32 #endif /* not lint */ 33 34 #include <err.h> 35 #include <grp.h> 36 #include <libutil.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <unistd.h> 40 41 #include "pwupd.h" 42 43 char * 44 getgrpath(const char * file) 45 { 46 static char pathbuf[MAXPATHLEN]; 47 48 snprintf(pathbuf, sizeof pathbuf, "%s/%s", conf.etcpath, file); 49 50 return (pathbuf); 51 } 52 53 static int 54 gr_update(struct group * grp, char const * group) 55 { 56 int pfd, tfd; 57 struct group *gr = NULL; 58 struct group *old_gr = NULL; 59 60 if (grp != NULL) 61 gr = gr_dup(grp); 62 63 if (group != NULL) 64 old_gr = GETGRNAM(group); 65 66 if (gr_init(conf.etcpath, NULL)) 67 err(1, "gr_init()"); 68 69 if ((pfd = gr_lock()) == -1) { 70 gr_fini(); 71 err(1, "gr_lock()"); 72 } 73 if ((tfd = gr_tmp(-1)) == -1) { 74 gr_fini(); 75 err(1, "gr_tmp()"); 76 } 77 if (gr_copy(pfd, tfd, gr, old_gr) == -1) { 78 gr_fini(); 79 close(tfd); 80 err(1, "gr_copy()"); 81 } 82 fsync(tfd); 83 close(tfd); 84 if (gr_mkdb() == -1) { 85 gr_fini(); 86 err(1, "gr_mkdb()"); 87 } 88 free(gr); 89 gr_fini(); 90 return 0; 91 } 92 93 94 int 95 addgrent(struct group * grp) 96 { 97 return gr_update(grp, NULL); 98 } 99 100 int 101 chggrent(char const * login, struct group * grp) 102 { 103 return gr_update(grp, login); 104 } 105 106 int 107 delgrent(struct group * grp) 108 { 109 110 return (gr_update(NULL, grp->gr_name)); 111 } 112