62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* Copyright (c) 1997-2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
|
|
|
|
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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <rpcsvc/nis.h>
|
|
|
|
nis_name
|
|
nis_domain_of_r (const_nis_name name, char *buffer, size_t buflen)
|
|
{
|
|
char *cptr;
|
|
size_t cptr_len;
|
|
|
|
if (buffer == NULL)
|
|
{
|
|
erange:
|
|
__set_errno (ERANGE);
|
|
return NULL;
|
|
}
|
|
|
|
buffer[0] = '\0';
|
|
|
|
cptr = strchr (name, '.');
|
|
|
|
if (cptr == NULL)
|
|
return buffer;
|
|
|
|
++cptr;
|
|
cptr_len = strlen (cptr);
|
|
|
|
if (cptr_len == 0)
|
|
{
|
|
if (buflen < 2)
|
|
goto erange;
|
|
return strcpy (buffer, ".");
|
|
}
|
|
|
|
if (__builtin_expect (cptr_len >= buflen, 0))
|
|
{
|
|
__set_errno (ERANGE);
|
|
return NULL;
|
|
}
|
|
|
|
return memcpy (buffer, cptr, cptr_len + 1);
|
|
}
|
|
libnsl_hidden_def (nis_domain_of_r)
|