Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / lib / Xau / AuRead.c

diff --git a/Xserver/lib/Xau/AuRead.c b/Xserver/lib/Xau/AuRead.c
new file mode 100644 (file)
index 0000000..ac4ee8a
--- /dev/null
+++ b/Xserver/lib/Xau/AuRead.c
@@ -0,0 +1,112 @@
+/* $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;
+}