+++ /dev/null
-/* $XConsortium: AuGetBest.c /main/23 1996/12/04 11:04:55 lehors $ */
-
-/*
-
-Copyright (c) 1988 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-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
-X CONSORTIUM 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 X Consortium 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 X Consortium.
-
-*/
-
-#include <X11/Xauth.h>
-#include <X11/Xos.h>
-#ifdef XTHREADS
-#include <X11/Xthreads.h>
-#endif
-#ifdef hpux
-#define X_INCLUDE_NETDB_H
-#define XOS_USE_NO_LOCKING
-#include <X11/Xos_r.h>
-#endif
-
-static
-binaryEqual (a, b, len)
-register char *a, *b;
-register int len;
-{
- while (len--)
- if (*a++ != *b++)
- return 0;
- return 1;
-}
-
-#if NeedFunctionPrototypes
-Xauth *
-XauGetBestAuthByAddr (
-#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,
- int types_length,
- char** types,
- _Xconst int* type_lengths)
-#else
-Xauth *
-XauGetBestAuthByAddr (family, address_length, address,
- number_length, number,
- types_length, types, type_lengths)
- unsigned short family;
- unsigned short address_length;
- char *address;
- unsigned short number_length;
- char *number;
- int types_length;
- char **types;
- int *type_lengths;
-#endif
-{
- FILE *auth_file;
- char *auth_name;
- Xauth *entry;
- Xauth *best;
- int best_type;
- int type;
-#ifdef hpux
- char *fully_qual_address;
- unsigned short fully_qual_address_length;
-#endif
-
- 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;
-
-#ifdef hpux
- if (family == FamilyLocal) {
- _Xgethostbynameparams hparams;
- struct hostent *hostp;
-
- /* make sure we try fully-qualified hostname */
- if ((hostp = _XGethostbyname(address,hparams)) != NULL) {
- fully_qual_address = hostp->h_name;
- fully_qual_address_length = strlen(fully_qual_address);
- }
- else
- {
- fully_qual_address = NULL;
- fully_qual_address_length = 0;
- }
- }
-#endif /* hpux */
-
- best = 0;
- best_type = types_length;
- 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
- * either address or entry->address are empty or
- * address and entry->address are the same
- * and
- * either number or entry->number are empty or
- * number and entry->number are the same
- * and
- * name matches one of the specified names, or no names
- * were specified
- */
-
- if ((family == FamilyWild || entry->family == FamilyWild ||
- (entry->family == family &&
- ((address_length == entry->address_length &&
- binaryEqual (entry->address, address, (int)address_length))
-#ifdef hpux
- || (family == FamilyLocal &&
- fully_qual_address_length == entry->address_length &&
- binaryEqual (entry->address, fully_qual_address,
- (int) fully_qual_address_length))
-#endif
- ))) &&
- (number_length == 0 || entry->number_length == 0 ||
- (number_length == entry->number_length &&
- binaryEqual (entry->number, number, (int)number_length))))
- {
- if (best_type == 0)
- {
- best = entry;
- break;
- }
- for (type = 0; type < best_type; type++)
- if (type_lengths[type] == entry->name_length &&
- !(strncmp (types[type], entry->name, entry->name_length)))
- {
- break;
- }
- if (type < best_type)
- {
- if (best)
- XauDisposeAuth (best);
- best = entry;
- best_type = type;
- if (type == 0)
- break;
- continue;
- }
- }
- XauDisposeAuth (entry);
- }
- (void) fclose (auth_file);
- return best;
-}
projects / rdpsrv / blobdiff