152 lines
3 KiB
C
152 lines
3 KiB
C
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#include "../SDL_test.h"
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#include "fuzzer.h"
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//! context for test-specific random number generator
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static RND_CTX rndContext;
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char *
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GenerateExecKey(char *runSeed, char *suiteName,
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char *testName, int iterationNumber)
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{
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if(runSeed == NULL || suiteName == NULL ||
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testName == NULL || iterationNumber < 0) {
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fprintf(stderr, "Error: Incorrect parameter given to GenerateExecKey function\n");
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return NULL;
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}
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char iterationString[256];
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memset(iterationString, 0, sizeof(iterationString));
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snprintf(iterationString, sizeof(iterationString), "%d", iterationNumber);
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// combine the parameters
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const int runSeedLength = strlen(runSeed);
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const int suiteNameLength = strlen(suiteName);
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const int testNameLength = strlen(testName);
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const int iterationStringLength = strlen(iterationString);
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// size of the entire + 3 for slashes and + 1 for '\0'
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const int entireString = runSeedLength + suiteNameLength +
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testNameLength + iterationStringLength + 3 + 1;
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char *buffer = SDL_malloc(entireString);
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if(!buffer) {
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return NULL;
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}
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SDL_snprintf(buffer, entireString, "%s/%s/%s/%d", runSeed, suiteName,
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testName, iterationNumber);
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//printf("Debug: %s", buffer);
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MD5_CTX md5Context;
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utl_md5Init(&md5Context);
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utl_md5Update(&md5Context, buffer, entireString);
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utl_md5Final(&md5Context);
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SDL_free(buffer);
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const int keyLength = SDL_strlen(md5Context.digest);
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char *key = SDL_malloc(keyLength);
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SDL_snprintf(key, keyLength, "%s", md5Context.digest);
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return key;
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}
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void
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InitFuzzer(char *execKey)
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{
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//int a = execKey[8,9,10,11];
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int a = execKey[8] | execKey[9] | execKey[10] | execKey[11];
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int b = execKey[12] | execKey[13] | execKey[14] | execKey[15];
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utl_randomInit(&rndContext, a, b);
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}
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void
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DeinitFuzzer()
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{
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}
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int
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RandomInteger()
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{
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return utl_randomInt(&rndContext);
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}
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int
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RandomPositiveInteger()
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{
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return abs(utl_randomInt(&rndContext));
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}
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int
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RandomIntegerInRange(int min, int max)
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{
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if(min > max || (min - max) == 0) {
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return -1; // Doesn't really make sense to return -1 on error?
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}
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int number = utl_randomInt(&rndContext);
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number = abs(number);
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return (number % ((max + 1) - min)) + min;
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}
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int
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GenerateBoundaryValueForSize(const int size)
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{
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if(size < 0) {
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return -1;
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}
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const int adjustment = RandomIntegerInRange(-1, 1);
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int retValue = (1 << (RandomPositiveInteger() % size)) + adjustment;
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return retValue;
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}
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int
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RandomUint8BoundaryValue()
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{
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return GenerateBoundaryValueForSize(8);
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}
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int
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RandomInt8BoundaryValue()
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{
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int value = GenerateBoundaryValueForSize(8);
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return (RandomPositiveInteger() % 2 == 0 ? value : -value);
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}
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char *
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RandomAsciiString()
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{
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return RandomAsciiStringWithMaximumLength(255);
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}
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char *
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RandomAsciiStringWithMaximumLength(int maxSize)
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{
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if(maxSize < 0) {
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return NULL;
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}
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int size = abs(RandomInteger) % maxSize;
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char *string = SDL_malloc(size * sizeof(size));
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int counter = 0;
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for( ; counter < size; ++counter) {
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string[counter] = (char) RandomIntegerInRange(1, 127);
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}
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string[counter] = '\0';
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return string;
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}
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