CodeSonar : irssi-0.8.14 : Null Pointer Dereference

irssi-0.8.14 : irssi-0.8.14 analysis 2 : Null Pointer Dereference at servers-redirect.c:523

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	7385.28483
Procedure:	server_redirect_get
Trace:	view
Modified:	Thu Nov 26 11:16:32 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

			/kat0/fletcher/SATE/2010/irssi-0.8.14/src/perl/irc/Server.c

			Enter XS_Irssi__Irc__Server_redirect_peek_signal

265

XS (XS_Irssi__Irc__Server_redirect_peek_signal)

{

#ifdef dVAR

dVAR; dXSARGS;

#else

dXSARGS;

#endif

if (items != 4)

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

274

PERL_UNUSED_VAR(cv); /* -W */

275

{

true

276

Irssi__Irc__Server server = irssi_ref_object(ST(0));

277

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

278

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

279

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

280

#line 136 "Server.xs"

int redirection;

#line 283 "Server.c"

char * RETVAL;

dXSTARG;

#line 138 "Server.xs"

server <= 4095

286

RETVAL = (char *) server_redirect_peek_signal(server, prefix, event, args, &redirection );

					/kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/core/servers-redirect.c

					Enter XS_Irssi__Irc__Server_redirect_peek_signal / server_redirect_peek_signal

	596				const char server_redirect_peek_signal(IRC_SERVER_REC server,
	597				const char *prefix,
	598				const char *event,
	599				const char *args,
	600				int *redirected)
	601				{
	602				REDIRECT_REC *redirect;
	603				const char *signal;
	604				int match;
	605

server <= 4095

606

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

							Enter XS_Irssi__Irc__Server_redirect_peek_signal / server_redirect_peek_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,

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: 7384.28482) */

							Exit XS_Irssi__Irc__Server_redirect_peek_signal / server_redirect_peek_signal / server_redirect_get

					Exit XS_Irssi__Irc__Server_redirect_peek_signal / server_redirect_peek_signal

Postconditions

_svi' = &$unknown_1478929
_svi' = &$unknown_1478944
_svi' = &$unknown_1478937
$unknown_1478912' = $unknown_1478912 - 4
args' = args'
args' = args'
event' = event'
event' = event'
items' != 4
match' = &match
match' = 0
prefix' = prefix'
prefix' = prefix'
redirect' = 0
redirect' = &redirect
redirected' = &redirection
server' = 0
server' = 0
server' = 0

Change Warning 7385.28483 : Null Pointer Dereference

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