commit 0bb892bb5fe1f0d9d783808d211c039e11e12f3b
from: Florian Westphal <fw@strlen.de>
date: Fri Apr 29 21:10:01 2011 UTC

conn: avoid needlesly scary 'buffer overflow' messages

When the write buffer space grows too large, ngircd has to disconnect
the client to avoid wasting too much memory.

ngircd logs this with a scary 'write buffer overflow' message.
Change this to a more descriptive wording.

commit - c26ca7773bfc92ca41344a0994bee45ec917b261
commit + 0bb892bb5fe1f0d9d783808d211c039e11e12f3b
blob - fa3a11e0a4e15b5da56ed6eb0d7c71fd77a17a0f
blob + 0a3c17c89b5e07f90945ef245bb072edccb312b0
--- src/ngircd/conn-zip.c
+++ src/ngircd/conn-zip.c
@@ -108,8 +108,8 @@ Zip_Buffer( CONN_ID Idx, const char *Data, size_t Len 
 	 * otherwise the zip wbuf would grow too large */
 	buflen = array_bytes(&My_Connections[Idx].zip.wbuf);
 	if (buflen + Len >= WRITEBUFFER_SLINK_LEN) {
-		Log(LOG_ALERT, "Zip Write Buffer overflow: %lu bytes\n", buflen + Len);
-		Conn_Close(Idx, "Zip Write buffer overflow", NULL, false);
+		Log(LOG_ALERT, "Zip Write buffer space exhausted: %lu bytes", buflen + Len);
+		Conn_Close(Idx, "Zip Write buffer space exhausted", NULL, false);
 		return false;
 	}
 	return array_catb(&My_Connections[Idx].zip.wbuf, Data, Len);
@@ -158,7 +158,7 @@ Zip_Flush( CONN_ID Idx )
 	if (out->avail_out <= 0) {
 		/* Not all data was compressed, because data became
 		 * bigger while compressing it. */
-		Log (LOG_ALERT, "Compression error: buffer overvlow!?");
+		Log(LOG_ALERT, "Compression error: buffer overflow!?");
 		Conn_Close(Idx, "Compression error!", NULL, false);
 		return false;
 	}
blob - cc4364c4635b8e55c7fb04ba9da3ce29d40d27f7
blob + 26e47c1d2cab04e9f5ccdce61ccd6a7cb567e615
--- src/ngircd/conn.c
+++ src/ngircd/conn.c
@@ -972,10 +972,10 @@ Conn_Write( CONN_ID Idx, char *Data, size_t Len )
 		if (array_bytes(&My_Connections[Idx].wbuf) + Len >=
 		    writebuf_limit) {
 			Log(LOG_NOTICE,
-			    "Write buffer overflow (connection %d, limit is %lu bytes, %lu bytes new, %lu bytes pending)!",
+			    "Write buffer space exhausted (connection %d, limit is %lu bytes, %lu bytes new, %lu bytes pending)",
 			    Idx, writebuf_limit, Len,
 			    (unsigned long)array_bytes(&My_Connections[Idx].wbuf));
-			Conn_Close(Idx, "Write buffer overflow!", NULL, false);
+			Conn_Close(Idx, "Write buffer space exhausted", NULL, false);
 			return false;
 		}
 
@@ -1525,9 +1525,9 @@ Read_Request( CONN_ID Idx )
 	{
 		/* Read buffer is full */
 		Log(LOG_ERR,
-		    "Receive buffer overflow (connection %d): %d bytes!",
+		    "Receive buffer space exhausted (connection %d): %d bytes",
 		    Idx, array_bytes(&My_Connections[Idx].rbuf));
-		Conn_Close( Idx, "Receive buffer overflow!", NULL, false );
+		Conn_Close(Idx, "Receive buffer space exhausted", NULL, false);
 		return;
 	}
 
@@ -1563,7 +1563,7 @@ Read_Request( CONN_ID Idx )
 			Log(LOG_ERR,
 			    "Could not append recieved data to zip input buffer (connn %d): %d bytes!",
 			    Idx, len);
-			Conn_Close(Idx, "Receive buffer overflow!", NULL,
+			Conn_Close(Idx, "Receive buffer space exhausted", NULL,
 				   false);
 			return;
 		}
@@ -1572,7 +1572,7 @@ Read_Request( CONN_ID Idx )
 	{
 		if (!array_catb( &My_Connections[Idx].rbuf, readbuf, len)) {
 			Log( LOG_ERR, "Could not append recieved data to input buffer (connn %d): %d bytes!", Idx, len );
-			Conn_Close( Idx, "Receive buffer overflow!", NULL, false );
+			Conn_Close(Idx, "Receive buffer space exhausted", NULL, false );
 		}
 	}