glibc/pwd/getpwnam.c

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1995-02-18 09:27:10 +08:00
/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <pwd.h>
/* Search for an entry with a matching name. */
struct passwd *
DEFUN(getpwnam, (name), register CONST char *name)
{
static PTR info = NULL;
register FILE *stream;
register struct passwd *p;
if (info == NULL)
{
info = __pwdalloc();
if (info == NULL)
return(NULL);
}
stream = __pwdopen();
if (stream == NULL)
return(NULL);
while ((p = __pwdread(stream, info)) != NULL)
if (!strcmp(p->pw_name, name))
break;
(void) fclose(stream);
return(p);
}