-/* $XConsortium: AuRead.c,v 1.7 95/07/10 21:18:07 gildea Exp $ */
-
-/*
-
-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>
-
-static
-read_short (shortp, file)
-unsigned short *shortp;
-FILE *file;
-{
- unsigned char file_short[2];
-
- if (fread ((char *) file_short, (int) sizeof (file_short), 1, file) != 1)
- return 0;
- *shortp = file_short[0] * 256 + file_short[1];
- return 1;
-}
-
-static
-read_counted_string (countp, stringp, file)
-unsigned short *countp;
-char **stringp;
-FILE *file;
-{
- unsigned short len;
- char *data;
-
- if (read_short (&len, file) == 0)
- return 0;
- if (len == 0) {
- data = 0;
- } else {
- data = malloc ((unsigned) len);
- if (!data)
- return 0;
- if (fread (data, (int) sizeof (char), (int) len, file) != len) {
- bzero (data, len);
- free (data);
- return 0;
- }
- }
- *stringp = data;
- *countp = len;
- return 1;
-}
-
-Xauth *
-XauReadAuth (auth_file)
-FILE *auth_file;
-{
- Xauth local;
- Xauth *ret;
-
- if (read_short (&local.family, auth_file) == 0)
- return 0;
- if (read_counted_string (&local.address_length, &local.address, auth_file) == 0)
- return 0;
- if (read_counted_string (&local.number_length, &local.number, auth_file) == 0) {
- if (local.address) free (local.address);
- return 0;
- }
- if (read_counted_string (&local.name_length, &local.name, auth_file) == 0) {
- if (local.address) free (local.address);
- if (local.number) free (local.number);
- return 0;
- }
- if (read_counted_string (&local.data_length, &local.data, auth_file) == 0) {
- if (local.address) free (local.address);
- if (local.number) free (local.number);
- if (local.name) free (local.name);
- return 0;
- }
- ret = (Xauth *) malloc (sizeof (Xauth));
- if (!ret) {
- if (local.address) free (local.address);
- if (local.number) free (local.number);
- if (local.name) free (local.name);
- if (local.data) {
- bzero (local.data, local.data_length);
- free (local.data);
- }
- return 0;
- }
- *ret = local;
- return ret;
-}