2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 * David L. Nugent. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
31 static const char rcsid[] =
46 static FILE * pwd_fp = NULL;
47 static int pwd_scanflag;
48 static const char *pwd_filename;
65 static struct passwd *
66 vnextpwent(char const *nam, uid_t uid, int doclose)
79 pwd_filename = _MASTERPASSWD;
80 pwd_scanflag = PWSCAN_MASTER;
82 pwd_filename = _PASSWD;
85 pwd_fp = fopen(getpwpath(pwd_filename), "r");
89 while ((linelen = getline(&line, &linecap, pwd_fp)) > 0) {
90 /* Skip comments and empty lines */
91 if (*line == '\n' || *line == '#')
94 if (line[linelen - 1 ] == '\n')
95 line[linelen - 1] = '\0';
96 pw = pw_scan(line, pwd_scanflag);
98 errx(EXIT_FAILURE, "Invalid user entry in '%s':"
99 " '%s'", getpwpath(pwd_filename), line);
100 if (uid != (uid_t)-1) {
101 if (uid == pw->pw_uid)
103 } else if (nam != NULL) {
104 if (strcmp(nam, pw->pw_name) == 0)
122 return vnextpwent(NULL, -1, 0);
128 return vnextpwent(NULL, uid, 1);
132 vgetpwnam(const char * nam)
134 return vnextpwent(nam, -1, 1);
138 static FILE * grp_fp = NULL;
143 if (grp_fp != NULL) {
155 static struct group *
156 vnextgrent(char const *nam, gid_t gid, int doclose)
167 if (grp_fp != NULL || (grp_fp = fopen(getgrpath(_GROUP), "r")) != NULL) {
168 while ((linelen = getline(&line, &linecap, grp_fp)) > 0) {
169 /* Skip comments and empty lines */
170 if (*line == '\n' || *line == '#')
173 if (line[linelen - 1 ] == '\n')
174 line[linelen - 1] = '\0';
177 errx(EXIT_FAILURE, "Invalid group entry in '%s':"
178 " '%s'", getgrpath(_GROUP), line);
179 if (gid != (gid_t)-1) {
180 if (gid == gr->gr_gid)
182 } else if (nam != NULL) {
183 if (strcmp(nam, gr->gr_name) == 0)
201 return vnextgrent(NULL, -1, 0);
208 return vnextgrent(NULL, gid, 1);
212 vgetgrnam(const char * nam)
214 return vnextgrent(nam, -1, 1);