--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/libgaim/protocols/qq/packet_parse.c Sat Aug 19 01:50:10 2006 +0000
@@ -0,0 +1,134 @@
+/**
+ * The QQ2003C protocol plugin
+ *
+ * for gaim
+ *
+ * Copyright (C) 2004 Puzzlebird
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _WIN32
+#include <arpa/inet.h>
+#else
+#include "win32dep.h"
+#endif
+
+#include <string.h>
+
+#include "packet_parse.h"
+
+/* read one byte from buf,
+ * return the number of bytes read if succeeds, otherwise return -1 */
+gint read_packet_b(guint8 *buf, guint8 **cursor, gint buflen, guint8 *b)
+{
+ if (*cursor <= buf + buflen - sizeof(*b)) {
+ *b = **(guint8 **) cursor;
+ *cursor += sizeof(*b);
+ return sizeof(*b);
+ } else {
+ return -1;
+ }
+}
+
+/* read two bytes as "guint16" from buf,
+ * return the number of bytes read if succeeds, otherwise return -1 */
+gint read_packet_w(guint8 *buf, guint8 **cursor, gint buflen, guint16 *w)
+{
+ if (*cursor <= buf + buflen - sizeof(*w)) {
+ *w = ntohs(**(guint16 **) cursor);
+ *cursor += sizeof(*w);
+ return sizeof(*w);
+ } else {
+ return -1;
+ }
+}
+
+/* read four bytes as "guint32" from buf,
+ * return the number of bytes read if succeeds, otherwise return -1 */
+gint read_packet_dw(guint8 *buf, guint8 **cursor, gint buflen, guint32 *dw)
+{
+ if (*cursor <= buf + buflen - sizeof(*dw)) {
+ *dw = ntohl(**(guint32 **) cursor);
+ *cursor += sizeof(*dw);
+ return sizeof(*dw);
+ } else {
+ return -1;
+ }
+}
+
+/* read datalen bytes from buf,
+ * return the number of bytes read if succeeds, otherwise return -1 */
+gint read_packet_data(guint8 *buf, guint8 **cursor, gint buflen, guint8 *data, gint datalen) {
+ if (*cursor <= buf + buflen - datalen) {
+ g_memmove(data, *cursor, datalen);
+ *cursor += datalen;
+ return datalen;
+ } else {
+ return -1;
+ }
+}
+
+/* pack one byte into buf
+ * return the number of bytes packed, otherwise return -1 */
+gint create_packet_b(guint8 *buf, guint8 **cursor, guint8 b)
+{
+ if (*cursor <= buf + MAX_PACKET_SIZE - sizeof(guint8)) {
+ **(guint8 **) cursor = b;
+ *cursor += sizeof(guint8);
+ return sizeof(guint8);
+ } else {
+ return -1;
+ }
+}
+
+/* pack two bytes as "guint16" into buf
+ * return the number of bytes packed, otherwise return -1 */
+gint create_packet_w(guint8 *buf, guint8 **cursor, guint16 w)
+{
+ if (*cursor <= buf + MAX_PACKET_SIZE - sizeof(guint16)) {
+ **(guint16 **) cursor = htons(w);
+ *cursor += sizeof(guint16);
+ return sizeof(guint16);
+ } else {
+ return -1;
+ }
+}
+
+/* pack four bytes as "guint32" into buf
+ * return the number of bytes packed, otherwise return -1 */
+gint create_packet_dw(guint8 *buf, guint8 **cursor, guint32 dw)
+{
+ if (*cursor <= buf + MAX_PACKET_SIZE - sizeof(guint32)) {
+ **(guint32 **) cursor = htonl(dw);
+ *cursor += sizeof(guint32);
+ return sizeof(guint32);
+ } else {
+ return -1;
+ }
+}
+
+/* pack datalen bytes into buf
+ * return the number of bytes packed, otherwise return -1 */
+gint create_packet_data(guint8 *buf, guint8 **cursor, guint8 *data, gint datalen)
+{
+ if (*cursor <= buf + MAX_PACKET_SIZE - datalen) {
+ g_memmove(*cursor, data, datalen);
+ *cursor += datalen;
+ return datalen;
+ } else {
+ return -1;
+ }
+}