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/*
* pg_id.c
*
* A crippled id utility for use in various shell scripts in use by PostgreSQL
* (in particular initdb)
*
* Copyright (c) 2000-2003, PostgreSQL Global Development Group
*
* $Header: /cvsroot/pgsql/src/bin/pg_id/Attic/pg_id.c,v 1.25 2003/10/10 01:34:51 momjian Exp $
*/
#include "postgres_fe.h"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
int
main(int argc, char *argv[])
{
int c;
int name_only_flag = 0,
use_real_uid_flag = 0,
limit_user_info = 0;
const char *username = NULL;
extern int optind;
#ifndef WIN32
struct passwd *pw;
#else
struct passwd_win32
{
int pw_uid;
char pw_name[128];
} pass_win32;
struct passwd_win32 *pw = &pass_win32;
unsigned long pwname_size = sizeof(pass_win32.pw_name) - 1;
pw->pw_uid = 1;
#endif
while ((c = getopt(argc, argv, "nru")) != -1)
{
switch (c)
{
case 'n':
name_only_flag = 1;
break;
case 'r':
use_real_uid_flag = 1;
break;
case 'u':
limit_user_info = 1;
break;
default:
#ifndef WIN32
fprintf(stderr, "Usage: %s [-n] [-r] [-u] [username]\n", argv[0]);
#else
fprintf(stderr, "Usage: %s [-n] [-r] [-u]\n", argv[0]);
#endif
exit(1);
}
}
if (argc - optind >= 1)
#ifndef WIN32
username = argv[optind];
#else
{
fprintf(stderr, "%s: specifying a username is not supported on this platform\n", argv[0]);
exit(1);
}
#endif
if (name_only_flag && !limit_user_info)
{
fprintf(stderr, "%s: -n must be used together with -u\n", argv[0]);
exit(1);
}
if (username && use_real_uid_flag)
{
fprintf(stderr, "%s: -r cannot be used when a user name is given\n", argv[0]);
exit(1);
}
#ifndef WIN32
if (username)
{
pw = getpwnam(username);
if (!pw)
{
fprintf(stderr, "%s: %s: no such user\n", argv[0], username);
exit(1);
}
}
else if (use_real_uid_flag)
pw = getpwuid(getuid());
else
pw = getpwuid(geteuid());
if (!pw)
{
perror(argv[0]);
exit(1);
}
#else
if (!use_real_uid_flag)
{
fprintf(stderr, "%s: -r must be used on this platform\n", argv[0]);
exit(1);
}
GetUserName(pw->pw_name, &pwname_size);
#endif
if (!limit_user_info)
printf("uid=%d(%s)\n", (int) pw->pw_uid, pw->pw_name);
else if (name_only_flag)
puts(pw->pw_name);
else
#ifdef __BEOS__
if (pw->pw_uid == 0)
printf("1\n");
else
#endif
printf("%d\n", (int) pw->pw_uid);
return 0;
}
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