CodeSonar : Irssi : Null Pointer Dereference

Irssi : Irssi analysis 1 : Null Pointer Dereference at dcc-get.c:279

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2207.2213
Procedure:	dcc_get_connect
Trace:	View
Modified:	Wed Sep 2 11:52:32 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

			/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/dcc/dcc-resume.c

			Enter ctcp_msg_dcc_accept

161

static void ctcp_msg_dcc_accept(IRC_SERVER_REC *server, const char *data,

162

const char *nick, const char *addr,

163

const char *target, DCC_REC *chat)

{

FILE_DCC_REC *dcc;

uoff_t size;

int pasv_id;

if (!dcc_ctcp_resume_parse(DCC_GET_TYPE, data, nick, &dcc, &size, &pasv_id ) ||

170

(dcc != NULL && DCC_GET (dcc )->get_type != DCC_GET_RESUME)) { /* Null Pointer Dereference (ID: 2208.2214) */

171

signal_emit("dcc error ctcp", 5, "ACCEPT", data,

172

nick, addr, target );

173

} else if (dcc != NULL && dcc_resume_file_check(dcc, server, size )) {

174

if (!dcc_is_passive(dcc))

true

175

dcc_get_connect(DCC_GET (dcc ));

					/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/dcc/dcc-get.c

					Enter ctcp_msg_dcc_accept / dcc_get_connect

$param_1 <= 4095

277

void dcc_get_connect(GET_DCC_REC *dcc)

278

{

dcc <= 4095

279

if (dcc->get_type == DCC_GET_DEFAULT) { /* Null Pointer Dereference */

					Exit ctcp_msg_dcc_accept / dcc_get_connect

Preconditions

&$unknown_555742 != 0
((char*)&$unknown_555743)[184] <= -1
((char*)&$unknown_555743)[232] = 3
dcc_conns >= 0

Postconditions

addr' = $param_4
((char*)&$unknown_555743)[176]' <= ((char*)&$unknown_555743)[200] - 1
((char*)&$unknown_555743)[208]' = ((char*)&$unknown_555743)[176]'
chat' = $param_6
data' = $param_2
dcc' = &$unknown_555743
dcc' = 0
nick' = $param_3
server' = $param_1
size' = ((char*)&$unknown_555743)[176]'
target' = $param_5

Change Warning 2207.2213 : Null Pointer Dereference

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