ubuntu-buildroot/output/build/host-acl-2.3.1/tools/user_group.c

61 lines
1.6 KiB
C

/*
File: user_group.c
(Linux Access Control List Management)
Copyright (C) 1999, 2000
Andreas Gruenbacher, <andreas.gruenbacher@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include "user_group.h"
const char *
user_name(uid_t uid, int numeric)
{
struct passwd *passwd = numeric ? NULL : getpwuid(uid);
static char uid_str[22];
int ret;
if (passwd != NULL)
return passwd->pw_name;
ret = snprintf(uid_str, sizeof(uid_str), "%ld", (long)uid);
if (ret < 1 || (size_t)ret >= sizeof(uid_str))
return "?";
return uid_str;
}
const char *
group_name(gid_t gid, int numeric)
{
struct group *group = numeric ? NULL : getgrgid(gid);
static char gid_str[22];
int ret;
if (group != NULL)
return group->gr_name;
ret = snprintf(gid_str, sizeof(gid_str), "%ld", (long)gid);
if (ret < 1 || (size_t)ret >= sizeof(gid_str))
return "?";
return gid_str;
}