--- /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