CodeSonar : Irssi : Null Pointer Dereference

Irssi : Irssi analysis 1 : Null Pointer Dereference at Core.c:1996

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2303.2312
Procedure:	XS_Irssi__Windowitem_parse_special
Trace:	View
Modified:	Wed Sep 2 12:00:38 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/common/Core.c

			Enter XS_Irssi__Windowitem_parse_special

1963

XS (XS_Irssi__Windowitem_parse_special)

{

#ifdef dVAR

dVAR; dXSARGS;

#else

dXSARGS;

#endif

if (items < 2 || items > 4)

1971

Perl_croak(aTHX_ "Usage: %s(%s)", "Irssi::Windowitem::parse_special", "item, cmd, data=\"\", flags=0");

1972

PERL_UNUSED_VAR(cv); /* -W */

1973

PERL_UNUSED_VAR(ax); /* -Wall */

SP -= items;

{

Irssi__Windowitem item = irssi_ref_object(ST(0));

1977

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

char * data;

int flags;

#line 725 "Core.xs"

char *ret;

#line 1983 "Core.c"

if (items < 3)

data = "";

else {

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

}

if (items < 4)

flags = 0;

else {

flags = (int)SvIV(ST(3));

}

#line 727 "Core.xs"

ret = parse_special_string(cmd, item->server, item, data, NULL, flags ); /* Null Pointer Dereference */

Preconditions

&$unknown_1428620 >= 5

Postconditions

_svi' = &$unknown_1428660
_svi' = &$unknown_1428637
_svi' = &$unknown_1428649
$unknown_1428614' = $unknown_1428614 - 4
cv' = $param_2
flags' = ((char*)$unknown_1428660)[24]
item' = 0
items' = &$unknown_1428620
my_perl' = $param_1

Change Warning 2303.2312 : Null Pointer Dereference

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