mirror of https://github.com/mirror/busybox.git
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
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* flexible :
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*
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* if bufsize is > 0 char *user can not be set to NULL
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* on success username is written on static allocated buffer
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* on failure uid as string is written to buffer and NULL is returned
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* if bufsize is = 0 char *user can be set to NULL
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* on success username is returned
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* on failure NULL is returned
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* if bufsize is < 0 char *user can be set to NULL
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* on success username is returned
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* on failure an error message is printed and the program exits
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*/
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "libbb.h"
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#include "pwd_.h"
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#include "grp_.h"
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/* gets a username given a uid */
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char * my_getpwuid(char *name, long uid, int bufsize)
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{
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struct passwd *myuser;
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myuser = getpwuid(uid);
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if (myuser==NULL) {
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if(bufsize > 0) {
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assert(name != NULL);
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snprintf(name, bufsize, "%ld", (long)uid);
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}
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if (bufsize < 0 ) {
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bb_error_msg_and_die("unknown uid %ld", (long)uid);
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}
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return NULL;
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} else {
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if(bufsize > 0 )
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{
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assert(name != NULL);
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return safe_strncpy(name, myuser->pw_name, bufsize);
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}
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return myuser->pw_name;
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}
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}
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/* END CODE */
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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