CodeSonar : Irssi : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2299.2308
Procedure:	perl_signal_args_to_c
Trace:	View
Modified:	Wed Sep 2 11:57:51 2009 show details hide details

Legend	[ X ]
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/perl-signals.c

			Enter perl_signal_args_to_c

void (*callback)(void *, void **), void *cb_arg,

int signal_id, SV **args, size_t n_args)

{

union {

int v_int;

unsigned long v_ulong;

GSList *v_gslist;

GList *v_glist;

} saved_args[SIGNAL_MAX_ARGUMENTS];

void *p[SIGNAL_MAX_ARGUMENTS];

size_t n;

const char *name = signal_get_id_str (signal_id );

if (!name) {

croak("%d is not a known signal id", signal_id);

}

croak("\"%s\" is not a registered signal", name);

}

for (n = 0; n < SIGNAL_MAX_ARGUMENTS && n < n_args && rec->args[n] != NULL; ++n) { /* Null Pointer Dereference */

Preconditions

$param_5 >= 1
&$unknown_1205643 != 0
perl_signal_args_partial >= 0

Postconditions

args' = $param_4
callback' = $param_1
cb_arg' = $param_2
n' = 0
n_args' = $param_5
name' = &$unknown_1205643
rec' = 0
signal_id' = $param_3