+++ /dev/null
-/* $XConsortium: mitauth.c /main/11 1996/10/28 22:56:36 dpw $ */
-/*
-
-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.
-
-*/
-
-/*
- * MIT-MAGIC-COOKIE-1 authorization scheme
- * Author: Keith Packard, MIT X Consortium
- */
-
-#include "X.h"
-#include "os.h"
-#include "dixstruct.h"
-
-static struct auth {
- struct auth *next;
- unsigned short len;
- char *data;
- XID id;
-} *mit_auth;
-
-int
-MitAddCookie (data_length, data, id)
-unsigned short data_length;
-char *data;
-XID id;
-{
- struct auth *new;
-
- new = (struct auth *) xalloc (sizeof (struct auth));
- if (!new)
- return 0;
- new->data = (char *) xalloc ((unsigned) data_length);
- if (!new->data) {
- xfree(new);
- return 0;
- }
- new->next = mit_auth;
- mit_auth = new;
- memmove(new->data, data, (int) data_length);
- new->len = data_length;
- new->id = id;
- return 1;
-}
-
-XID
-MitCheckCookie (data_length, data, client, reason)
- unsigned short data_length;
- char *data;
- ClientPtr client;
- char **reason;
-{
- struct auth *auth;
-
- for (auth = mit_auth; auth; auth=auth->next) {
- if (data_length == auth->len &&
- memcmp (data, auth->data, (int) data_length) == 0)
- return auth->id;
- }
- *reason = "Invalid MIT-MAGIC-COOKIE-1 key";
- return (XID) -1;
-}
-
-int
-MitResetCookie ()
-{
- struct auth *auth, *next;
-
- for (auth = mit_auth; auth; auth=next) {
- next = auth->next;
- xfree (auth->data);
- xfree (auth);
- }
- mit_auth = 0;
- return 0;
-}
-
-XID
-MitToID (data_length, data)
-unsigned short data_length;
-char *data;
-{
- struct auth *auth;
-
- for (auth = mit_auth; auth; auth=auth->next) {
- if (data_length == auth->len &&
- memcmp (data, auth->data, data_length) == 0)
- return auth->id;
- }
- return (XID) -1;
-}
-
-int
-MitFromID (id, data_lenp, datap)
-XID id;
-unsigned short *data_lenp;
-char **datap;
-{
- struct auth *auth;
-
- for (auth = mit_auth; auth; auth=auth->next) {
- if (id == auth->id) {
- *data_lenp = auth->len;
- *datap = auth->data;
- return 1;
- }
- }
- return 0;
-}
-
-int
-MitRemoveCookie (data_length, data)
-unsigned short data_length;
-char *data;
-{
- struct auth *auth, *prev;
-
- prev = 0;
- for (auth = mit_auth; auth; prev = auth, auth=auth->next) {
- if (data_length == auth->len &&
- memcmp (data, auth->data, data_length) == 0)
- {
- if (prev)
- prev->next = auth->next;
- else
- mit_auth = auth->next;
- xfree (auth->data);
- xfree (auth);
- return 1;
- }
- }
- return 0;
-}
-
-#ifdef XCSECURITY
-
-static char cookie[16]; /* 128 bits */
-
-XID
-MitGenerateCookie (data_length, data, id, data_length_return, data_return)
- unsigned int data_length;
- char *data;
- XID id;
- unsigned int *data_length_return;
- char **data_return;
-{
- int i = 0;
- int status;
-
- while (data_length--)
- {
- cookie[i++] += *data++;
- if (i >= sizeof (cookie)) i = 0;
- }
- GenerateRandomData(sizeof (cookie), cookie);
- status = MitAddCookie(sizeof (cookie), cookie, id);
- if (!status)
- {
- id = -1;
- }
- else
- {
- *data_return = cookie;
- *data_length_return = sizeof (cookie);
- }
- return id;
-}
-
-#endif /* XCSECURITY */