CodeSonar : Irssi : Null Pointer Dereference

Irssi : Irssi analysis 1 : Null Pointer Dereference at servers-redirect.c:523

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2321.2331
Procedure:	server_redirect_get
Trace:	View
Modified:	Wed Sep 2 12:11:16 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/perl/irc/Server.c

			Enter XS_Irssi__Irc__Server_redirect_get_signal

238

XS (XS_Irssi__Irc__Server_redirect_get_signal)

{

#ifdef dVAR

dVAR; dXSARGS;

#else

dXSARGS;

#endif

if (items != 4)

Perl_croak(aTHX_ "Usage: %s(%s)", "Irssi::Irc::Server::redirect_get_signal", "server, prefix, event, args");

247

PERL_UNUSED_VAR(cv); /* -W */

248

{

true

249

Irssi__Irc__Server server = irssi_ref_object(ST(0));

250

char * prefix = (char *)SvPV_nolen(ST(1));

251

char * event = (char *)SvPV_nolen(ST(2));

252

char * args = (char *)SvPV_nolen(ST(3));

253

char * RETVAL;

254

dXSTARG;

255

#line 125 "Server.xs"

server <= 4095

256

RETVAL = (char *) server_redirect_get_signal(server, prefix, event, args );

					/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/core/servers-redirect.c

					Enter XS_Irssi__Irc__Server_redirect_get_signal / server_redirect_get_signal

569

const char *server_redirect_get_signal(IRC_SERVER_REC *server,

const char *prefix,

const char *event,

const char *args)

{

REDIRECT_REC *redirect;

const char *signal;

int match;

signal = server_redirect_get (server, prefix, event, args, &redirect, &match );

							Enter XS_Irssi__Irc__Server_redirect_get_signal / server_redirect_get_signal / server_redirect_get

511

static const char *

512

server_redirect_get(IRC_SERVER_REC *server, const char *prefix,

513

const char *event, const char *args,

$param_1 <= 4095

514

REDIRECT_REC **redirect, int *match)

{

const char *signal;

GSList *ptr, *next;

REDIRECT_REC *r;

*redirect = NULL;

*match = MATCH_NONE;

if (server->redirects == NULL) /* Null Pointer Dereference */ /* Null Pointer Dereference (ID: 2322.2332) */

							Exit XS_Irssi__Irc__Server_redirect_get_signal / server_redirect_get_signal / server_redirect_get

					Exit XS_Irssi__Irc__Server_redirect_get_signal / server_redirect_get_signal

Postconditions

_svi' = &$unknown_2282480
_svi' = &$unknown_2282491
_svi' = &$unknown_2282504
$unknown_2282458' = $unknown_2282458 - 4
args' = args'
args' = args'
cv' = $param_2
event' = event'
event' = event'
items' != 4
match' = 0
match' = &match
my_perl' = $param_1
prefix' = prefix'
prefix' = prefix'
redirect' = 0
redirect' = &redirect
server' = 0
server' = 0
server' = 0

Change Warning 2321.2331 : Null Pointer Dereference

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