mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* Copyright (C) 1991-2020 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <pwd.h>
|
|
#include <nss.h>
|
|
|
|
#define _S(x) x ?: ""
|
|
|
|
/* Write an entry to the given stream. This must know the format of
|
|
the password file. If the input contains invalid characters,
|
|
return EINVAL, or replace them with spaces (if they are contained
|
|
in the GECOS field). */
|
|
int
|
|
putpwent (const struct passwd *p, FILE *stream)
|
|
{
|
|
if (p == NULL || stream == NULL
|
|
|| p->pw_name == NULL || !__nss_valid_field (p->pw_name)
|
|
|| !__nss_valid_field (p->pw_passwd)
|
|
|| !__nss_valid_field (p->pw_dir)
|
|
|| !__nss_valid_field (p->pw_shell))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
int ret;
|
|
char *gecos_alloc;
|
|
const char *gecos = __nss_rewrite_field (p->pw_gecos, &gecos_alloc);
|
|
|
|
if (gecos == NULL)
|
|
return -1;
|
|
|
|
if (p->pw_name[0] == '+' || p->pw_name[0] == '-')
|
|
ret = fprintf (stream, "%s:%s:::%s:%s:%s\n",
|
|
p->pw_name, _S (p->pw_passwd),
|
|
gecos, _S (p->pw_dir), _S (p->pw_shell));
|
|
else
|
|
ret = fprintf (stream, "%s:%s:%lu:%lu:%s:%s:%s\n",
|
|
p->pw_name, _S (p->pw_passwd),
|
|
(unsigned long int) p->pw_uid,
|
|
(unsigned long int) p->pw_gid,
|
|
gecos, _S (p->pw_dir), _S (p->pw_shell));
|
|
|
|
free (gecos_alloc);
|
|
if (ret >= 0)
|
|
ret = 0;
|
|
return ret;
|
|
}
|