Improved char server packet 0x3087, gave it a variable/dynamic length so that it doesn't waste buffer size with messages too short.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@16850 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/char/inter.c

@@ -419,19 +419,21 @@ const char* geoip_getcountry(uint32 ipnum){
 void inter_to_fd(int fd, int u_fd, int aid, char* msg, ...) {
 	char msg_out[512];
 	va_list ap;
+	int len = 1;/* yes we start at 1 */
 	
 	va_start(ap,msg);
-	vsprintf(msg_out, msg, ap);
+		len += vsnprintf(msg_out, 512, msg, ap);
 	va_end(ap);
-	
-	WFIFOHEAD(fd,522);
+		
+	WFIFOHEAD(fd,12 + len);
 	
 	WFIFOW(fd,0) = 0x3807;
-	WFIFOL(fd,2) = u_fd;
-	WFIFOL(fd,6) = aid;
-	safestrncpy((char*)WFIFOP(fd,10), msg_out, 512);
+	WFIFOW(fd,2) = 12 + (unsigned short)len;
+	WFIFOL(fd,4) = u_fd;
+	WFIFOL(fd,8) = aid;
+	safestrncpy((char*)WFIFOP(fd,12), msg_out, len);
 	
-	WFIFOSET(fd,522);
+	WFIFOSET(fd,12 + len);
 	
 	return;
 }

src/map/intif.c

@@ -34,7 +34,7 @@
 
 
 static const int packet_len_table[]={
-	-1,-1,27,-1, -1, 0,37, 522,  0, 0, 0, 0,  0, 0,  0, 0, //0x3800-0x380f
+	-1,-1,27,-1, -1, 0,37,-1,  0, 0, 0, 0,  0, 0,  0, 0, //0x3800-0x380f
 	 0, 0, 0, 0,  0, 0, 0, 0, -1,11, 0, 0,  0, 0,  0, 0, //0x3810
 	39,-1,15,15, 14,19, 7,-1,  0, 0, 0, 0,  0, 0,  0, 0, //0x3820
 	10,-1,15, 0, 79,19, 7,-1,  0,-1,-1,-1, 14,67,186,-1, //0x3830
@@ -2140,15 +2140,15 @@ void intif_request_accinfo( int u_fd, int aid, int group_id, char* query ) {
 }
 	
 void intif_parse_MessageToFD(int fd) {
-	int u_fd = RFIFOL(fd,2);	
+	int u_fd = RFIFOL(fd,4);
 
 	if( session[u_fd] && session[u_fd]->session_data ) {
-		int aid = RFIFOL(fd,6);
+		int aid = RFIFOL(fd,8);
 		struct map_session_data * sd = session[u_fd]->session_data;
 		/* matching e.g. previous fd owner didn't dc during request or is still the same */
 		if( sd->bl.id == aid ) {
 			char msg[512];
-			safestrncpy(msg, (char*)RFIFOP(fd,10), 512);
+			safestrncpy(msg, (char*)RFIFOP(fd,12), RFIFOW(fd,2) - 12);
 			clif_displaymessage(u_fd,msg);
 		}