CodeSonar : irssi-0.8.14 : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	7306.28395
Procedure:	event_default_command
Trace:	view
Modified:	Thu Nov 26 11:09:21 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

			/kat0/fletcher/SATE/2010/irssi-0.8.14/src/fe-common/core/fe-core-commands.c

			Enter event_default_command

	229		static void event_default_command(const char data, void server,
	230		WI_ITEM_REC *item)
	231		{
	232		const char cmdchars, ptr;
	233		char cmd, p;
	234		long diff;
	235

ptr = data;

while (*ptr != '\0' && *ptr != ' ') {

if (strchr(cmdchars, *ptr)) { /* Null Pointer Dereference */

Preconditions

*data != 0
*data != 32
strlen(data) != 0

Postconditions

cmdchars' = 0
ptr' = data