From cd5a9930815b6be88db4069ad680fba639853c95 Mon Sep 17 00:00:00 2001
From: "John Hodge (sonata)" <tpg@mutabah.net>
Date: Thu, 28 Mar 2013 13:05:52 +0800
Subject: [PATCH] Usermode - Fixed incorrect use of vsnprintf

---
 Usermode/Applications/irc_src/main.c      | 13 ++++++++++---
 Usermode/Libraries/libnet.so_src/socket.c |  8 ++++----
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/Usermode/Applications/irc_src/main.c b/Usermode/Applications/irc_src/main.c
index 3448dbd1..4ca24155 100644
--- a/Usermode/Applications/irc_src/main.c
+++ b/Usermode/Applications/irc_src/main.c
@@ -340,7 +340,7 @@ tMessage *Message_AppendF(tServer *Server, int Type, const char *Source, const c
 	va_list	args;
 	 int	len;
 	va_start(args, Message);
-	len = vsnprintf(NULL, 1000, Message, args);
+	len = vsnprintf(NULL, 0, Message, args);
 	{
 		char	buf[len+1];
 		vsnprintf(buf, len+1, Message, args);
@@ -602,6 +602,10 @@ void ParseServerLine(tServer *Server, char *Line)
 			}
 			
 			//printf("[%s] NOTICE %s: %s\n", Server->Name, ident, message);
+			char *ident_bang = strchr(ident, '!');
+			if( ident_bang ) {
+				*ident_bang = '\0';
+			}
 			Message_Append(Server, MSG_TYPE_NOTICE, ident, "", message);
 		}
 		else if( strcmp(cmd, "PRIVMSG") == 0 )
@@ -619,7 +623,10 @@ void ParseServerLine(tServer *Server, char *Line)
 			// TODO: Catch when the privmsg is addressed to the user
 
 //			Cmd_PRIVMSG(Server, dest, ident, message);
-			*strchr(ident, '!') = '\0';	// Hello SIGSEGV
+			char *ident_bang = strchr(ident, '!');
+			if( ident_bang ) {
+				*ident_bang = '\0';
+			}
 			Message_Append(Server, MSG_TYPE_STANDARD, ident, dest, message);
 		}
 		else if( strcmp(cmd, "JOIN" ) == 0 )
@@ -709,7 +716,7 @@ int writef(int FD, const char *Format, ...)
 	 int	len;
 	
 	va_start(args, Format);
-	len = vsnprintf(NULL, 1000, Format, args);
+	len = vsnprintf(NULL, 0, Format, args);
 	va_end(args);
 	
 	{
diff --git a/Usermode/Libraries/libnet.so_src/socket.c b/Usermode/Libraries/libnet.so_src/socket.c
index f5933f22..85f7e54f 100644
--- a/Usermode/Libraries/libnet.so_src/socket.c
+++ b/Usermode/Libraries/libnet.so_src/socket.c
@@ -22,17 +22,17 @@ int Net_OpenSocket(int AddrType, void *Addr, const char *Filename)
 	
 	if(Filename)
 	{
-		 int	len = snprintf(NULL, 100, "/Devices/ip/routes/@%i:%s/%s", AddrType, hexAddr, Filename);
+		 int	len = snprintf(NULL, 0, "/Devices/ip/routes/@%i:%s/%s", AddrType, hexAddr, Filename);
 		char	path[len+1];
-		snprintf(path, 100, "/Devices/ip/routes/@%i:%s/%s", AddrType, hexAddr, Filename);
+		snprintf(path, len+1, "/Devices/ip/routes/@%i:%s/%s", AddrType, hexAddr, Filename);
 		_SysDebug("%s", path);
 		return _SysOpen(path, OPENFLAG_READ|OPENFLAG_WRITE);
 	}
 	else
 	{
-		 int	len = snprintf(NULL, 100, "/Devices/ip/routes/@%i:%s", AddrType, hexAddr);
+		 int	len = snprintf(NULL, 0, "/Devices/ip/routes/@%i:%s", AddrType, hexAddr);
 		char	path[len+1];
-		snprintf(path, 100, "/Devices/ip/routes/@%i:%s", AddrType, hexAddr);
+		snprintf(path, len+1, "/Devices/ip/routes/@%i:%s", AddrType, hexAddr);
 		return _SysOpen(path, OPENFLAG_READ);
 	}
 }
-- 
2.20.1