113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
|
/* $Xorg: AuGetAddr.c,v 1.4 2001/02/09 02:03:42 xorgcvs Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
|
||
|
|
Copyright 1988, 1998 The Open Group
|
||
|
|
|
||
|
|
Permission to use, copy, modify, distribute, and sell this software and its
|
||
|
|
documentation for any purpose is hereby granted without fee, provided that
|
||
|
|
the above copyright notice appear in all copies and that both that
|
||
|
|
copyright notice and this permission notice appear in supporting
|
||
|
|
documentation.
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included in
|
||
|
|
all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||
|
|
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
|
||
|
|
Except as contained in this notice, the name of The Open Group shall not be
|
||
|
|
used in advertising or otherwise to promote the sale, use or other dealings
|
||
|
|
in this Software without prior written authorization from The Open Group.
|
||
|
|
|
||
|
|
*/
|
||
|
|
/* $XFree86: xc/lib/Xau/AuGetAddr.c,v 1.5 2001/12/14 19:54:36 dawes Exp $ */
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include <config.h>
|
||
|
|
#endif
|
||
|
|
#include <X11/Xauth.h>
|
||
|
|
#include <X11/Xos.h>
|
||
|
|
|
||
|
|
static int
|
||
|
|
binaryEqual (_Xconst char *a, _Xconst char *b, int len)
|
||
|
|
{
|
||
|
|
while (len--)
|
||
|
|
if (*a++ != *b++)
|
||
|
|
return 0;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
Xauth *
|
||
|
|
XauGetAuthByAddr (
|
||
|
|
#if NeedWidePrototypes
|
||
|
|
unsigned int family,
|
||
|
|
unsigned int address_length,
|
||
|
|
#else
|
||
|
|
unsigned short family,
|
||
|
|
unsigned short address_length,
|
||
|
|
#endif
|
||
|
|
_Xconst char* address,
|
||
|
|
#if NeedWidePrototypes
|
||
|
|
unsigned int number_length,
|
||
|
|
#else
|
||
|
|
unsigned short number_length,
|
||
|
|
#endif
|
||
|
|
_Xconst char* number,
|
||
|
|
#if NeedWidePrototypes
|
||
|
|
unsigned int name_length,
|
||
|
|
#else
|
||
|
|
unsigned short name_length,
|
||
|
|
#endif
|
||
|
|
_Xconst char* name)
|
||
|
|
{
|
||
|
|
FILE *auth_file;
|
||
|
|
char *auth_name;
|
||
|
|
Xauth *entry;
|
||
|
|
|
||
|
|
auth_name = XauFileName ();
|
||
|
|
if (!auth_name)
|
||
|
|
return 0;
|
||
|
|
if (access (auth_name, R_OK) != 0) /* checks REAL id */
|
||
|
|
return 0;
|
||
|
|
auth_file = fopen (auth_name, "rb");
|
||
|
|
if (!auth_file)
|
||
|
|
return 0;
|
||
|
|
for (;;) {
|
||
|
|
entry = XauReadAuth (auth_file);
|
||
|
|
if (!entry)
|
||
|
|
break;
|
||
|
|
/*
|
||
|
|
* Match when:
|
||
|
|
* either family or entry->family are FamilyWild or
|
||
|
|
* family and entry->family are the same and
|
||
|
|
* address and entry->address are the same
|
||
|
|
* and
|
||
|
|
* either number or entry->number are empty or
|
||
|
|
* number and entry->number are the same
|
||
|
|
* and
|
||
|
|
* either name or entry->name are empty or
|
||
|
|
* name and entry->name are the same
|
||
|
|
*/
|
||
|
|
|
||
|
|
if ((family == FamilyWild || entry->family == FamilyWild ||
|
||
|
|
(entry->family == family &&
|
||
|
|
address_length == entry->address_length &&
|
||
|
|
binaryEqual (entry->address, address, (int)address_length))) &&
|
||
|
|
(number_length == 0 || entry->number_length == 0 ||
|
||
|
|
(number_length == entry->number_length &&
|
||
|
|
binaryEqual (entry->number, number, (int)number_length))) &&
|
||
|
|
(name_length == 0 || entry->name_length == 0 ||
|
||
|
|
(entry->name_length == name_length &&
|
||
|
|
binaryEqual (entry->name, name, (int)name_length))))
|
||
|
|
break;
|
||
|
|
XauDisposeAuth (entry);
|
||
|
|
}
|
||
|
|
(void) fclose (auth_file);
|
||
|
|
return entry;
|
||
|
|
}
|