pwd/getpwnam.c


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/* 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);
}