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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
* flexible :
*
* if bufsize is > 0 char *group cannot be set to NULL
* on success groupname is written on static allocated buffer
* on failure gid as string is written to buffer and NULL is returned
* if bufsize is = 0 char *group can be set to NULL
* on success groupname is returned
* on failure NULL is returned
* if bufsize is < 0 char *group can be set to NULL
* on success groupname is returned
* on failure an error message is printed and the program exits
*/
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "libbb.h"
#include "pwd_.h"
#include "grp_.h"
/* gets a groupname given a gid */
char * my_getgrgid(char *group, long gid, int bufsize)
{
struct group *mygroup;
mygroup = getgrgid(gid);
if (mygroup==NULL) {
if(bufsize > 0) {
assert(group != NULL);
snprintf(group, bufsize, "%ld", (long)gid);
}
if( bufsize < 0 ) {
bb_error_msg_and_die("unknown gid %ld", (long)gid);
}
return NULL;
} else {
if(bufsize > 0)
{
assert(group != NULL);
return safe_strncpy(group, mygroup->gr_name, bufsize);
}
return mygroup->gr_name;
}
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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