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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) 2004 by Tito Ragusa <farmatito@tiscali.it>
*
* 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
*/
/*
*
* if bufsize is > 0 char *buffer can not be set to NULL.
* If idname is not NULL it is written on the static allocated buffer
* (and a pointer to it is returned).
* if idname is NULL, id as string is written to the static allocated buffer
* and NULL is returned.
* if bufsize is = 0 char *buffer can be set to NULL.
* If idname exists a pointer to it is returned,
* else NULL is returned.
* if bufsize is < 0 char *buffer can be set to NULL.
* If idname exists a pointer to it is returned,
* else an error message is printed and the program exits.
*/
#include <stdio.h>
#include <assert.h>
#include "libbb.h"
/* internal function for my_getpwuid and my_getgrgid */
char * my_getug(char *buffer, char *idname, long id, int bufsize, char prefix)
{
if(bufsize > 0 ) {
assert(buffer!=NULL);
if(idname) {
return safe_strncpy(buffer, idname, bufsize);
}
snprintf(buffer, bufsize, "%ld", id);
} else if(bufsize < 0 && !idname) {
bb_error_msg_and_die("unknown %cid %ld", prefix, id);
}
return idname;
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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