CodeSonar : Pvm : Unreachable Data Flow

Categories:	LANG.STRUCT.UC CWE:561
Warning ID:	2618.2658
Procedure:	fbol
Trace:	View
Modified:	Wed Sep 2 12:42:19 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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Line	Source

		/u1/paul/SATE/2010/c/pvm/pvm3/src/pmsg.c

		Enter fbol

275		fbol(o, p, n)
276		int o;
277		unsigned char *p;
278		int n;
279		{
280		int i, j;
281
282		for (i = 0; i < 16; i++) {
283		if (thesigs[i].length == n) {
284		for (j = 0; j < n; j++)
285		if (p[j] != thesigs[i].bytes[j])
286		break;
287		if (j == n)
288		return ((3 << 4) \| i) << o;
289
290		for (j = 0; j < n; j++)
291		if (p[n - 1 - j] != thesigs[i].bytes[j])
292		break;
293		if (j == n)
294		return i << o;
295
296		/* weird float byte order for Strongarm?! */
297		/* submitted Alexander Schulz <un23@rz.uni-karlsruhe.de> */
298		for (j = 0; j < n; j++)
299		if (p[(((j/4)*8)+3)-j] != thesigs[i].bytes[j])
300		break;
301		if (j == n)
302		return ((2 << 4) \| i) << o;
303		}
304		}
305		fprintf(stderr, "can't generate signature for my float byte order\n");
306		abort();
307		return 0; /* Unreachable Data Flow */
308		}