Fixing the previous commit.

test/test-automation/fuzzer/fuzzer.c

@@ -0,0 +1,119 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <string.h>
+
+
+#include "../SDL_test.h"
+
+#include "fuzzer.h"
+
+
+//! context for test-specific random number generator
+RND_CTX rndContext3;
+
+int
+GenerateExecKey(CRC32_CTX crcContext, char *runSeed, char *suiteName,
+				char *testName, int iterationNumber)
+{
+	if(runSeed == NULL || suiteName == NULL ||
+	   testName == NULL || iterationNumber < 0) {
+		fprintf(stderr, "Incorrect parameter given to GenerateExecKey function\n");
+		return -1;
+	}
+
+	char iterationString[256];
+	memset(iterationString, 0, sizeof(iterationString));
+
+	snprintf(iterationString, sizeof(iterationString), "%d", iterationNumber);
+
+	// combine the parameters
+	const int runSeedLength = strlen(runSeed);
+	const int suiteNameLength = strlen(suiteName);
+	const int testNameLength = strlen(testName);
+	const int iterationStringLength = strlen(iterationString);
+
+	// size of the entire + 3 for slashes and + 1 for '\0'
+	const int entireString  = runSeedLength + suiteNameLength +
+							  testNameLength + iterationString + 3 + 1;
+
+	int result = 0;
+
+	/* Let's take a hash from the strings separately because
+	 * it's really slow to calculate md5 or crc32 for a really long string
+	 * like 'runSeed/testSuiteName/testName/iteration'
+	 */
+	MD5_CTX md5Context;
+	utl_md5Init(&md5Context);
+
+	utl_md5Update(&md5Context, runSeed, runSeedLength);
+	utl_md5Update(&md5Context, suiteName, suiteNameLength);
+	utl_md5Update(&md5Context, testName, testNameLength);
+	utl_md5Update(&md5Context, iterationString, iterationStringLength);
+
+	utl_md5Final(&md5Context);
+
+	utl_crc32Calc(&crcContext, md5Context.digest, sizeof(md5Context.digest), &result);
+
+	return result;
+}
+
+void
+InitFuzzer(const int execKey)
+{
+	utl_randomInit(&rndContext3, globalExecKey, globalExecKey / 0xfafafafa);
+}
+
+void
+DeinitFuzzer()
+{
+
+}
+
+int
+RandomInteger()
+{
+	return utl_randomInt(&rndContext3);
+}
+
+int
+RandomPositiveIntegerInRange(int min, int max)
+{
+	int number = utl_randomInt(&rndContext3);
+	number = abs(number);
+
+	return (number % (max - min)) + min;
+}
+
+int
+RandomBoundaryValue(const int max)
+{
+	// Note: somehow integrate with RandomInteger?
+	// try to make more sensible & add new values
+	int boundaryValues[] = {0, 1, 15, 16, 17, 31, 32, 33, 63, 64, 65};
+	int retValue = -1;
+
+	do {
+		int index = RandomPositiveIntegerInRange(0, 10);
+		retValue = boundaryValues[index];
+
+	} while( !(retValue <= max) );
+
+	return retValue;
+}
+
+
+char *
+RandomAsciiString()
+{
+	const int size = abs(RandomInteger);
+	char *string = SDL_malloc(size * sizeof(size));
+
+	int counter = 0;
+	for( ; counter < size; ++counter) {
+		char character = (char) RandomPositiveIntegerInRange(0, 127);
+		string[counter] = character;
+	}
+
+	return string;
+}