/*
* Mini id implementation for busybox
*
- *
* Copyright (C) 2000 by Randolph Chung <tausq@debian.org>
*
* This program is free software; you can redistribute it and/or modify
*
*/
-#include "internal.h"
+#include "busybox.h"
#include <stdio.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
+#include <getopt.h>
#include <sys/types.h>
-static const char id_usage[] =
- "id [OPTIONS]... [USERNAME]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nPrint information for USERNAME or the current user\n\n"
- "Options:\n"
- "\t-g\tprints only the group ID\n"
- "\t-u\tprints only the user ID\n"
- "\t-r\tprints the real user ID instead of the effective ID (with -ug)\n\n"
-#endif
- ;
-
extern int id_main(int argc, char **argv)
{
int no_user = 0, no_group = 0, print_real = 0;
char *cp, *user, *group;
- gid_t gid;
+ long gid;
+ long pwnam, grnam;
+ int opt;
cp = user = group = NULL;
+ gid = 0;
- argc--; argv++;
-
- while (argc > 0) {
- cp = *argv;
- if (*cp == '-') {
- switch (*++cp) {
- case 'u': no_group = 1; break;
- case 'g': no_user = 1; break;
- case 'r': print_real = 1; break;
- default: usage(id_usage);
- }
- } else {
- user = cp;
+ while ((opt = getopt(argc, argv, "ugr")) > 0) {
+ switch (opt) {
+ case 'u':
+ no_group++;
+ break;
+ case 'g':
+ no_user++;
+ break;
+ case 'r':
+ print_real++;
+ break;
+ default:
+ usage(id_usage);
}
- argc--; argv++;
}
if (no_user && no_group) usage(id_usage);
+ user = argv[optind];
+
if (user == NULL) {
- user = xmalloc(9);
- group = xmalloc(9);
+ user = xcalloc(9, sizeof(char));
+ group = xcalloc(9, sizeof(char));
if (print_real) {
my_getpwuid(user, getuid());
my_getgrgid(group, getgid());
my_getgrgid(group, getegid());
}
} else {
- group = xmalloc(9);
+ group = xcalloc(9, sizeof(char));
gid = my_getpwnamegid(user);
my_getgrgid(group, gid);
}
- if (no_group) printf("%u\n", my_getpwnam(user));
- else if (no_user) printf("%u\n", my_getgrnam(group));
+ pwnam=my_getpwnam(user);
+ grnam=my_getgrnam(group);
+ if (gid == -1 || pwnam==-1 || grnam==-1) {
+ fatalError("%s: No such user\n", user);
+ }
+ if (no_group)
+ printf("%ld\n", pwnam);
+ else if (no_user)
+ printf("%ld\n", grnam);
else
- printf("uid=%u(%s) gid=%u(%s)\n",
- my_getpwnam(user), user, my_getgrnam(group), group);
-
-
- exit(0);
+ printf("uid=%ld(%s) gid=%ld(%s)\n", pwnam, user, grnam, group);
+ return(0);
}