- if (fflush(out_fp) || fsync(fileno(out_fp)) || fclose(out_fp)) {
- unlink(buf);
- fcntl(fileno(fp), F_SETLK, &lock);
- fclose(fp);
- return 1;
- }
- if (rename(buf, filename) < 0) {
- fcntl(fileno(fp), F_SETLK, &lock);
- fclose(fp);
- return 1;
- } else {
- fcntl(fileno(fp), F_SETLK, &lock);
- fclose(fp);
- return 0;
- }
-}
-
-
-extern int passwd_main(int argc, char **argv)
-{
- int amroot;
- char *cp;
- char *np;
- char *name;
- char *myname;
- int flag;
- int algo = 1; /* -a - password algorithm */
- int lflg = 0; /* -l - lock account */
- int uflg = 0; /* -u - unlock account */
- int dflg = 0; /* -d - delete password */
- const struct passwd *pw;
- unsigned short ruid;
-
-#ifdef CONFIG_FEATURE_SHADOWPASSWDS
- const struct spwd *sp;
-#endif /* CONFIG_FEATURE_SHADOWPASSWDS */
- amroot = (getuid() == 0);
- openlog("passwd", LOG_PID | LOG_CONS | LOG_NOWAIT, LOG_AUTH);
- while ((flag = getopt(argc, argv, "a:dlu")) != EOF) {
- switch (flag) {
- case 'a':
- algo = get_algo(optarg);
- break;
- case 'd':
- dflg++;
- break;
- case 'l':
- lflg++;
- break;
- case 'u':
- uflg++;
- break;
- default:
- bb_show_usage();
- }
- }
- ruid = getuid();
- pw = (struct passwd *) getpwuid(ruid);
- if (!pw) {
- bb_error_msg_and_die("Cannot determine your user name.");
- }
- myname = (char *) bb_xstrdup(pw->pw_name);
- if (optind < argc) {
- name = argv[optind];
- } else {
- name = myname;
- }
- if ((lflg || uflg || dflg) && (optind >= argc || !amroot)) {
- bb_show_usage();
- }
- pw = getpwnam(name);
- if (!pw) {
- bb_error_msg_and_die("Unknown user %s\n", name);
- }
- if (!amroot && pw->pw_uid != getuid()) {
- syslog(LOG_WARNING, "can't change pwd for `%s'", name);
- bb_error_msg_and_die("Permission denied.\n");
- }
-#ifdef CONFIG_FEATURE_SHADOWPASSWDS
- sp = getspnam(name);
- if (!sp) {
- sp = (struct spwd *) pwd_to_spwd(pw);
- }
- cp = sp->sp_pwdp;
- np = sp->sp_namp;
-#else
- cp = pw->pw_passwd;
- np = name;
-#endif /* CONFIG_FEATURE_SHADOWPASSWDS */
-
- safe_strncpy(crypt_passwd, cp, sizeof(crypt_passwd));
- if (!(dflg || lflg || uflg)) {
- if (!amroot) {
- if (cp[0] == '!') {
- syslog(LOG_WARNING, "password locked for `%s'", np);
- bb_error_msg_and_die( "The password for `%s' cannot be changed.\n", np);
- }