+ /* First get the key (an applet name in our case). */
+ if (!!(e = strchr(s, '='))) {
+ s = get_trimmed_slice(s, e);
+ }
+ if (!e || !*s) { /* Missing '=' or empty key. */
+ parse_error("keyword");
+ }
+
+ /* Ok, we have an applet name. Process the rhs if this
+ * applet is currently built in and ignore it otherwise.
+ * Note: This can hide config file bugs which only pop
+ * up when the busybox configuration is changed. */
+ if ((applet = find_applet_by_name(s))) {
+ /* Note: We currently don't check for duplicates!
+ * The last config line for each applet will be the
+ * one used since we insert at the head of the list.
+ * I suppose this could be considered a feature. */
+ sct = xmalloc(sizeof(struct BB_suid_config));
+ sct->m_applet = applet;
+ sct->m_mode = 0;
+ sct->m_next = sct_head;
+ sct_head = sct;
+
+ /* Get the specified mode. */
+
+ e = skip_whitespace(e+1);
+
+ for (i=0 ; i < 3 ; i++) {
+ const char *q;
+ if (!*(q = strchrnul(mode_chars + 5*i, *e++))) {
+ parse_error("mode");
+ }
+ /* Adjust by -i to account for nul. */
+ sct->m_mode |= mode_mask[(q - mode_chars) - i];
+ }
+
+ /* Now get the the user/group info. */
+
+ s = skip_whitespace(e);
+
+ /* Note: We require whitespace between the mode and the
+ * user/group info. */
+ if ((s == e) || !(e = strchr(s, '.'))) {
+ parse_error("<uid>.<gid>");
+ }
+ *e++ = 0;
+
+ /* We can't use get_ug_id here since it would exit()
+ * if a uid or gid was not found. Oh well... */
+ {
+ char *e2;
+
+ sct->m_uid = strtoul(s, &e2, 10);
+ if (*e2 || (s == e2)) {
+ struct passwd *pwd;
+ if (!(pwd = getpwnam(s))) {
+ parse_error("user");
+ }
+ sct->m_uid = pwd->pw_uid;
+ }
+
+ sct->m_gid = strtoul(e, &e2, 10);
+ if (*e2 || (e == e2)) {
+ struct group *grp;
+ if (!(grp = getgrnam(e))) {
+ parse_error("group");
+ }
+ sct->m_gid = grp->gr_gid;
+ }
+ }
+ }
+ continue;
+ }