CodeSonar : Irssi : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2295.2304
Procedure:	perl_command
Trace:	View
Modified:	Wed Sep 2 11:57:37 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/perl/perl-common.c

			Enter perl_command

	536		void perl_command(const char cmd, SERVER_REC server, WI_ITEM_REC *item)
	537		{
	538		const char *cmdchars;
	539		char sendcmd = (char ) cmd;
	540
	541		if (*cmd == '\0')
	542		return;
	543

if (strchr(cmdchars, *cmd) == NULL) { /* Null Pointer Dereference */

Preconditions

*$param_1 != 0
strlen($param_1) != 0

Postconditions

cmd' = $param_1
cmdchars' = 0
item' = $param_3
sendcmd' = $param_1
server' = $param_2