CodeSonar : Irssi : Null Pointer Dereference

Irssi : Irssi analysis 1 : Null Pointer Dereference at fe-log.c:435

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2251.2257
Procedure:	autolog_open
Trace:	View
Modified:	Wed Sep 2 11:54:36 2009 show details hide details

Priority:	None
State:	None
Finding:	None
Owner:	None
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Warning Location Contributes Parse Error Other Warning Two or More Loop Iterations On Execution Path Comment Macro Preprocessor Include Keyword Preprocessed Away

Legend
Warning Location	Contributes	Parse Error
Other Warning	Two or More Loop Iterations	On Execution Path
Comment	Macro	Preprocessor
Include	Keyword	Preprocessed Away

Source | Language: C

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Problem	Line	Source

			/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/fe-common/core/fe-log.c

			Enter autolog_open

418

static void autolog_open(SERVER_REC *server, const char *server_tag,

const char *target)

{

LOG_REC *log;

char *fname, *dir, *fixed_target, *params;

423

424

log = logs_find_item(LOG_ITEM_TARGET, target, server_tag, NULL );

425

if (log != NULL && !log->failed) {

426

log_start_logging(log );

return;

}

/* '/' -> '_' - don't even accidentally try to log to

431

#../../../file if you happen to join to such channel..

432

433

'%' -> '%%' - so strftime() won't mess with them */

434

fixed_target = escape_target(target );

true

435

if (CHAT_PROTOCOL (server )->case_insensitive) /* Null Pointer Dereference */

Preconditions

((char*)$param_1)[4] >= 1
((char*)$param_3)[1] = 0
((char*)logs->data)[64] != 0
strlen($param_3) = 1
*((char*)*logs->data)[40] = 0
chat_protocols = 0

Postconditions

$unknown_810248' != 37
$unknown_810248' != 47
$unknown_810248' != 0
strlen(&$unknown_810248)' = 1
((char*)&$unknown_810248)[1]' = 0
fixed_target' = &$unknown_810248
log' = logs->data
server' = $param_1
server_tag' = $param_2
target' = $param_3

Change Warning 2251.2257 : Null Pointer Dereference

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