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

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Florian Westphal, <westphal@foo.fh-furtwangen.de>. [from HEAD].
This commit is contained in:
Alexander Barton 2005-01-24 14:22:30 +00:00
parent 0eb7ad58d0
commit 87ce4379e8
2 changed files with 11 additions and 4 deletions
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4
ChangeLog
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@ -12,6 +12,8 @@
ngircd 0.8.x (CVS)
- Fixed a possible buffer underrun when reading the MOTD file. Thanks
to Florian Westphal, <westphal@foo.fh-furtwangen.de>.
- Fixed detection of IRC lines which are too long to send. Detected by
Florian Westphal, <westphal@foo.fh-furtwangen.de>.
- Fixed return values of our own implementation of strlcpy(). The code has
@ -549,4 +551,4 @@ ngIRCd 0.0.1, 31.12.2001
--
$Id: ChangeLog,v 1.233.2.13 2005/01/19 23:35:42 alex Exp $
$Id: ChangeLog,v 1.233.2.14 2005/01/24 14:22:30 alex Exp $

11
src/ngircd/irc-info.c
View File

@ -14,7 +14,7 @@
#include "portab.h"
static char UNUSED id[] = "$Id: irc-info.c,v 1.21.2.1 2004/05/07 11:24:18 alex Exp $";
static char UNUSED id[] = "$Id: irc-info.c,v 1.21.2.2 2005/01/24 14:22:30 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 ) line_len--;
if( line[line_len] == '\n' ) line[line_len] = '\0';
if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
{
fclose( fd );