* Always return EXIT_FAILURE (1), don't try to be smart!
*/
-static void __attribute__((__noreturn__)) usage(FILE *out)
+static void __attribute__((__noreturn__)) usage(void)
{
+ FILE *out = stdout;
fputs(USAGE_HEADER, out);
fprintf(out,
_(" %s [options]\n"), program_invocation_short_name);
fputs(_("Politely refuse a login.\n"), out);
fputs(USAGE_OPTIONS, out);
- fputs(USAGE_HELP, out);
- fputs(USAGE_VERSION, out);
+ fputs(_(" -c, --command <command> does nothing (for compatibility with su -c)\n"), out);
+ printf(USAGE_HELP_OPTIONS(26));
- fprintf(out, USAGE_MAN_TAIL("nologin(8)"));
+ printf(USAGE_MAN_TAIL("nologin(8)"));
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
- int c, fd;
+ int c, fd = -1;
struct stat st;
+ enum {
+ OPT_INIT_FILE = CHAR_MAX + 1,
+ OPT_NOPROFILE,
+ OPT_NORC,
+ OPT_POSIX,
+ OPT_RCFILE
+ };
static const struct option longopts[] = {
- { "help", 0, 0, 'h' },
- { "version", 0, 0, 'V' },
- { NULL, 0, 0, 0 }
+ { "command", required_argument, NULL, 'c' },
+ { "init-file", required_argument, NULL, OPT_INIT_FILE },
+ { "interactive", no_argument, NULL, 'i' },
+ { "login", no_argument, NULL, 'l' },
+ { "noprofile", no_argument, NULL, OPT_NOPROFILE },
+ { "norc", no_argument, NULL, OPT_NORC },
+ { "posix", no_argument, NULL, OPT_POSIX },
+ { "rcfile", required_argument, NULL, OPT_RCFILE },
+ { "restricted", no_argument, NULL, 'r' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { NULL, 0, NULL, 0 }
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
- while ((c = getopt_long(argc, argv, "hV", longopts, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "c:ilrhV", longopts, NULL)) != -1) {
switch (c) {
- case 'h':
- usage(stdout);
+ case 'c':
+ case OPT_INIT_FILE:
+ case 'i':
+ case 'l':
+ case OPT_NOPROFILE:
+ case OPT_NORC:
+ case OPT_POSIX:
+ case OPT_RCFILE:
+ case 'r':
+ /* Ignore well known shell command-line options */
break;
+ case 'h':
+ usage();
case 'V':
- printf(UTIL_LINUX_VERSION);
- return EXIT_FAILURE;
+ print_version(EXIT_FAILURE); /* yes FAILURE! */
default:
- usage(stderr);
- break;
+ errtryhelp(EXIT_FAILURE);
}
}
fd = open(_PATH_NOLOGIN_TXT, O_RDONLY);
+ if (fd < 0)
+ goto dflt;
+
c = fstat(fd, &st);
- if (fd >= 0 && !c && S_ISREG(st.st_mode)) {
+ if (c < 0 || !S_ISREG(st.st_mode))
+ goto dflt;
+ else {
char buf[BUFSIZ];
ssize_t rd;
while ((rd = read(fd, buf, sizeof(buf))) > 0)
ignore_result( write(STDOUT_FILENO, buf, rd) );
+
close(fd);
- } else
- fprintf(stdout, _("This account is currently not available.\n"));
+ return EXIT_FAILURE;
+ }
+dflt:
+ if (fd >= 0)
+ close(fd);
+ fprintf(stdout, _("This account is currently not available.\n"));
return EXIT_FAILURE;
}