CodeSonar : Irssi : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2226.2232
Procedure:	sig_complete_erase
Trace:	View
Modified:	Wed Sep 2 11:53:21 2009 show details hide details

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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

Source | Language: C

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Problem	Line	Source

			/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/fe-common/core/completion.c

			Enter sig_complete_erase

	642		static void sig_complete_erase(WINDOW_REC window, const char word,
	643		const char *linestart)
	644		{
	645		const char *cmdchars;
	646		char line, cmd, args, signal;
	647
	648		if (*linestart == '\0')
	649		return;
	650
	651		/* we only want to check for commands */

cmdchars = strchr(cmdchars, *linestart); /* Null Pointer Dereference */

Preconditions

*$param_3 != 0
strlen($param_3) != 0

Postconditions

cmdchars' = 0
linestart' = $param_3
window' = $param_1
word' = $param_2