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3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
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33 * $FreeBSD: src/usr.bin/chpass/edit.c,v 1.16.2.2 2001/08/02 01:48:22 obrien Exp $
34 * $DragonFly: src/usr.bin/chpass/edit.c,v 1.2 2003/06/17 04:29:25 dillon Exp $
36 * @(#)edit.c 8.3 (Berkeley) 4/2/94
39 #include <sys/param.h>
61 extern char *tempname;
67 struct stat begin, end;
68 char *begin_sum, *end_sum;
71 if (stat(tempname, &begin))
72 pw_error(tempname, 1, 1);
73 begin_sum = MD5File(tempname, (char *)NULL);
75 if (stat(tempname, &end))
76 pw_error(tempname, 1, 1);
77 end_sum = MD5File(tempname, (char *)NULL);
78 if ((begin.st_mtime == end.st_mtime) &&
79 (strcmp(begin_sum, end_sum) == 0)) {
80 warnx("no changes made");
93 * print out the file for the user to edit; strange side-effect:
94 * set conditional flag if the user gets to edit the shell.
102 char *bp, *p, *ttoa();
104 if (!(fp = fdopen(fd, "w")))
105 pw_error(tempname, 1, 1);
109 "#Changing %s information for %s.\n", _use_yp ? "NIS" : "user database", pw->pw_name);
110 if (!uid && (!_use_yp || suser_override)) {
112 "#Changing user database information for %s.\n", pw->pw_name);
115 (void)fprintf(fp, "Login: %s\n", pw->pw_name);
116 (void)fprintf(fp, "Password: %s\n", pw->pw_passwd);
117 (void)fprintf(fp, "Uid [#]: %lu\n", (unsigned long)pw->pw_uid);
118 (void)fprintf(fp, "Gid [# or name]: %lu\n",
119 (unsigned long)pw->pw_gid);
120 (void)fprintf(fp, "Change [month day year]: %s\n",
121 ttoa(pw->pw_change));
122 (void)fprintf(fp, "Expire [month day year]: %s\n",
123 ttoa(pw->pw_expire));
124 (void)fprintf(fp, "Class: %s\n", pw->pw_class);
125 (void)fprintf(fp, "Home directory: %s\n", pw->pw_dir);
126 (void)fprintf(fp, "Shell: %s\n",
127 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
129 /* Only admin can change "restricted" shells. */
131 else if (ok_shell(pw->pw_shell))
133 * Make shell a restricted field. Ugly with a
134 * necklace, but there's not much else to do.
137 else if ((!list[E_SHELL].restricted && ok_shell(pw->pw_shell)) || !uid)
139 * If change not restrict (table.c) and standard shell
140 * OR if root, then allow editing of shell.
143 (void)fprintf(fp, "Shell: %s\n",
144 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
146 list[E_SHELL].restricted = 1;
149 p = strsep(&bp, ",");
150 p = strdup(p ? p : "");
151 list[E_NAME].save = p;
152 if (!list[E_NAME].restricted || !uid)
153 (void)fprintf(fp, "Full Name: %s\n", p);
155 p = strsep(&bp, ",");
156 p = strdup(p ? p : "");
157 list[E_LOCATE].save = p;
158 if (!list[E_LOCATE].restricted || !uid)
159 (void)fprintf(fp, "Office Location: %s\n", p);
161 p = strsep(&bp, ",");
162 p = strdup(p ? p : "");
163 list[E_BPHONE].save = p;
164 if (!list[E_BPHONE].restricted || !uid)
165 (void)fprintf(fp, "Office Phone: %s\n", p);
167 p = strsep(&bp, ",");
168 p = strdup(p ? p : "");
169 list[E_HPHONE].save = p;
170 if (!list[E_HPHONE].restricted || !uid)
171 (void)fprintf(fp, "Home Phone: %s\n", p);
173 bp = strdup(bp ? bp : "");
174 list[E_OTHER].save = bp;
175 if (!list[E_OTHER].restricted || !uid)
176 (void)fprintf(fp, "Other information: %s\n", bp);
178 (void)fchown(fd, getuid(), getgid());
191 static char buf[LINE_MAX];
193 if (!(fp = fopen(tempname, "r")))
194 pw_error(tempname, 1, 1);
195 if (fstat(fileno(fp), &sb))
196 pw_error(tempname, 1, 1);
197 if (sb.st_size == 0) {
198 warnx("corrupted temporary file");
202 while (fgets(buf, sizeof(buf), fp)) {
204 if (!buf[0] || buf[0] == '#')
206 if (!(p = strchr(buf, '\n'))) {
207 warnx("line %d too long", line);
211 for (ep = list;; ++ep) {
213 warnx("unrecognized field on line %d", line);
216 if (!strncasecmp(buf, ep->prompt, ep->len)) {
217 if (ep->restricted && uid) {
219 "you may not change the %s field",
223 if (!(p = strchr(buf, ':'))) {
224 warnx("line %d corrupted", line);
227 while (isspace(*++p));
228 if (ep->except && strpbrk(p, ep->except)) {
230 "illegal character in the \"%s\" field",
234 if ((ep->func)(p, pw, ep)) {
235 bad: (void)fclose(fp);
244 /* Build the gecos field. */
245 len = strlen(list[E_NAME].save) + strlen(list[E_BPHONE].save) +
246 strlen(list[E_HPHONE].save) + strlen(list[E_LOCATE].save) +
247 strlen(list[E_OTHER].save) + 5;
248 if (!(p = malloc(len)))
250 (void)sprintf(pw->pw_gecos = p, "%s,%s,%s,%s,%s", list[E_NAME].save,
251 list[E_LOCATE].save, list[E_BPHONE].save, list[E_HPHONE].save,
254 while ((len = strlen(pw->pw_gecos)) && pw->pw_gecos[len - 1] == ',')
255 pw->pw_gecos[len - 1] = '\0';
257 if (snprintf(buf, sizeof(buf),
258 "%s:%s:%lu:%lu:%s:%ld:%ld:%s:%s:%s",
259 pw->pw_name, pw->pw_passwd, (unsigned long)pw->pw_uid,
260 (unsigned long)pw->pw_gid, pw->pw_class, (long)pw->pw_change,
261 (long)pw->pw_expire, pw->pw_gecos, pw->pw_dir,
262 pw->pw_shell) >= sizeof(buf)) {
263 warnx("entries too long");
268 return (pw_scan(buf, pw));