2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $FreeBSD: src/usr.bin/chpass/edit.c,v 1.16.2.2 2001/08/02 01:48:22 obrien Exp $
37 static const char sccsid[] = "@(#)edit.c 8.3 (Berkeley) 4/2/94";
40 #include <sys/param.h>
62 extern char *tempname;
68 struct stat begin, end;
69 char *begin_sum, *end_sum;
72 if (stat(tempname, &begin))
73 pw_error(tempname, 1, 1);
74 begin_sum = MD5File(tempname, (char *)NULL);
76 if (stat(tempname, &end))
77 pw_error(tempname, 1, 1);
78 end_sum = MD5File(tempname, (char *)NULL);
79 if ((begin.st_mtime == end.st_mtime) &&
80 (strcmp(begin_sum, end_sum) == 0)) {
81 warnx("no changes made");
94 * print out the file for the user to edit; strange side-effect:
95 * set conditional flag if the user gets to edit the shell.
103 char *bp, *p, *ttoa();
105 if (!(fp = fdopen(fd, "w")))
106 pw_error(tempname, 1, 1);
110 "#Changing %s information for %s.\n", _use_yp ? "NIS" : "user database", pw->pw_name);
111 if (!uid && (!_use_yp || suser_override)) {
113 "#Changing user database information for %s.\n", pw->pw_name);
116 (void)fprintf(fp, "Login: %s\n", pw->pw_name);
117 (void)fprintf(fp, "Password: %s\n", pw->pw_passwd);
118 (void)fprintf(fp, "Uid [#]: %lu\n", (unsigned long)pw->pw_uid);
119 (void)fprintf(fp, "Gid [# or name]: %lu\n",
120 (unsigned long)pw->pw_gid);
121 (void)fprintf(fp, "Change [month day year]: %s\n",
122 ttoa(pw->pw_change));
123 (void)fprintf(fp, "Expire [month day year]: %s\n",
124 ttoa(pw->pw_expire));
125 (void)fprintf(fp, "Class: %s\n", pw->pw_class);
126 (void)fprintf(fp, "Home directory: %s\n", pw->pw_dir);
127 (void)fprintf(fp, "Shell: %s\n",
128 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
130 /* Only admin can change "restricted" shells. */
132 else if (ok_shell(pw->pw_shell))
134 * Make shell a restricted field. Ugly with a
135 * necklace, but there's not much else to do.
138 else if ((!list[E_SHELL].restricted && ok_shell(pw->pw_shell)) || !uid)
140 * If change not restrict (table.c) and standard shell
141 * OR if root, then allow editing of shell.
144 (void)fprintf(fp, "Shell: %s\n",
145 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
147 list[E_SHELL].restricted = 1;
150 p = strsep(&bp, ",");
151 p = strdup(p ? p : "");
152 list[E_NAME].save = p;
153 if (!list[E_NAME].restricted || !uid)
154 (void)fprintf(fp, "Full Name: %s\n", p);
156 p = strsep(&bp, ",");
157 p = strdup(p ? p : "");
158 list[E_LOCATE].save = p;
159 if (!list[E_LOCATE].restricted || !uid)
160 (void)fprintf(fp, "Office Location: %s\n", p);
162 p = strsep(&bp, ",");
163 p = strdup(p ? p : "");
164 list[E_BPHONE].save = p;
165 if (!list[E_BPHONE].restricted || !uid)
166 (void)fprintf(fp, "Office Phone: %s\n", p);
168 p = strsep(&bp, ",");
169 p = strdup(p ? p : "");
170 list[E_HPHONE].save = p;
171 if (!list[E_HPHONE].restricted || !uid)
172 (void)fprintf(fp, "Home Phone: %s\n", p);
174 bp = strdup(bp ? bp : "");
175 list[E_OTHER].save = bp;
176 if (!list[E_OTHER].restricted || !uid)
177 (void)fprintf(fp, "Other information: %s\n", bp);
179 (void)fchown(fd, getuid(), getgid());
192 static char buf[LINE_MAX];
194 if (!(fp = fopen(tempname, "r")))
195 pw_error(tempname, 1, 1);
196 if (fstat(fileno(fp), &sb))
197 pw_error(tempname, 1, 1);
198 if (sb.st_size == 0) {
199 warnx("corrupted temporary file");
203 while (fgets(buf, sizeof(buf), fp)) {
205 if (!buf[0] || buf[0] == '#')
207 if (!(p = strchr(buf, '\n'))) {
208 warnx("line %d too long", line);
212 for (ep = list;; ++ep) {
214 warnx("unrecognized field on line %d", line);
217 if (!strncasecmp(buf, ep->prompt, ep->len)) {
218 if (ep->restricted && uid) {
220 "you may not change the %s field",
224 if (!(p = strchr(buf, ':'))) {
225 warnx("line %d corrupted", line);
228 while (isspace(*++p));
229 if (ep->except && strpbrk(p, ep->except)) {
231 "illegal character in the \"%s\" field",
235 if ((ep->func)(p, pw, ep)) {
236 bad: (void)fclose(fp);
245 /* Build the gecos field. */
246 len = strlen(list[E_NAME].save) + strlen(list[E_BPHONE].save) +
247 strlen(list[E_HPHONE].save) + strlen(list[E_LOCATE].save) +
248 strlen(list[E_OTHER].save) + 5;
249 if (!(p = malloc(len)))
251 (void)sprintf(pw->pw_gecos = p, "%s,%s,%s,%s,%s", list[E_NAME].save,
252 list[E_LOCATE].save, list[E_BPHONE].save, list[E_HPHONE].save,
255 while ((len = strlen(pw->pw_gecos)) && pw->pw_gecos[len - 1] == ',')
256 pw->pw_gecos[len - 1] = '\0';
258 if (snprintf(buf, sizeof(buf),
259 "%s:%s:%lu:%lu:%s:%ld:%ld:%s:%s:%s",
260 pw->pw_name, pw->pw_passwd, (unsigned long)pw->pw_uid,
261 (unsigned long)pw->pw_gid, pw->pw_class, (long)pw->pw_change,
262 (long)pw->pw_expire, pw->pw_gecos, pw->pw_dir,
263 pw->pw_shell) >= sizeof(buf)) {
264 warnx("entries too long");
269 return (pw_scan(buf, pw));