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/*
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Copyright 1988, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <X11/Xauth.h>
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#include <stdlib.h>
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static int
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read_short (unsigned short *shortp, FILE *file)
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{
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unsigned char file_short[2];
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if (fread ((char *) file_short, sizeof (file_short), 1, file) != 1)
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return 0;
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*shortp = file_short[0] * 256 + file_short[1];
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return 1;
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}
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static int
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read_counted_string (unsigned short *countp, char **stringp, FILE *file)
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{
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unsigned short len;
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char *data;
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if (read_short (&len, file) == 0)
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return 0;
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if (len == 0) {
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data = NULL;
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} else {
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data = malloc ((unsigned) len);
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if (!data)
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return 0;
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if (fread (data, sizeof (char), len, file) != len) {
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bzero (data, len);
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free (data);
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return 0;
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}
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}
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*stringp = data;
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*countp = len;
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return 1;
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}
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Xauth *
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XauReadAuth (FILE *auth_file)
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{
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Xauth local;
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Xauth *ret;
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if (read_short (&local.family, auth_file) == 0)
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return NULL;
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if (read_counted_string (&local.address_length, &local.address, auth_file) == 0)
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return NULL;
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if (read_counted_string (&local.number_length, &local.number, auth_file) == 0) {
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free (local.address);
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return NULL;
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}
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if (read_counted_string (&local.name_length, &local.name, auth_file) == 0) {
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free (local.address);
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free (local.number);
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return NULL;
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}
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if (read_counted_string (&local.data_length, &local.data, auth_file) == 0) {
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free (local.address);
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free (local.number);
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free (local.name);
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return NULL;
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}
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ret = (Xauth *) malloc (sizeof (Xauth));
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if (!ret) {
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free (local.address);
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free (local.number);
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free (local.name);
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if (local.data) {
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bzero (local.data, local.data_length);
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free (local.data);
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}
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return NULL;
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}
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*ret = local;
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return ret;
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}
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