CodeSonar : Irssi : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2201.2206
Procedure:	convert_home
Trace:	View
Modified:	Wed Sep 2 11:52:20 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/irc/dcc/dcc-send.c

			Enter dcc_send_get_file

	74		static char dcc_send_get_file(const char fname)
	75		{
	76		char str, path;
	77
	78		str = convert_home(fname );
	79		if (!g_path_is_absolute(str)) {
	80		/* full path not given to file, use dcc_upload_path */
	81		g_free(str);
	82

path = convert_home(settings_get_str("dcc_upload_path"));

					/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/core/misc.c

					Enter dcc_send_get_file / convert_home

char *convert_home(const char *path)

{

const char *home;

if (*path == '~' && (*(path+1) == '/' || *(path+1) == '\0')) { /* Null Pointer Dereference */ /* 2 more... */

					Exit dcc_send_get_file / convert_home

Preconditions

((char*)$param_1)[1] <= 47
((char*)$param_1)[1] >= 0
*$param_1 = 126
strlen($param_1) != 0

Postconditions

fname' = $param_1
path' = 0
str' = &$unknown_532647