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Fixed a possible buffer underrun when reading the MOTD file. Thanks to

Browse Source 
Florian Westphal, <westphal@foo.fh-furtwangen.de>.
This commit is contained in:
Alexander Barton
2005-01-24 14:17:21 +00:00
parent a6d7fb8739
commit 44172a8c7f
2 changed files with 11 additions and 4 deletions
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11
src/ngircd/irc-info.c
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@@ -14,7 +14,7 @@
#include "portab.h"
static char UNUSED id[] = "$Id: irc-info.c,v 1.22 2004/05/07 11:19:21 alex Exp $";
static char UNUSED id[] = "$Id: irc-info.c,v 1.23 2005/01/24 14:17:21 alex Exp $";
#include "imp.h"
#include <assert.h>
@@ -770,6 +770,7 @@ IRC_Show_MOTD( CLIENT *Client )
BOOLEAN ok;
CHAR line[127];
FILE *fd;
UINT line_len;
assert( Client != NULL );
@@ -790,8 +791,12 @@ IRC_Show_MOTD( CLIENT *Client )
if( ! IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return DISCONNECTED;
while( TRUE )
{
if( ! fgets( line, 126, fd )) break;
if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
if( ! fgets( line, sizeof( line ), fd )) break;
line_len = strlen( line );
if( line_len > 0 ) pos--;
if( line[line_len] == '\n' ) line[line_len] = '\0';
if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
{
fclose( fd );