2d Array - Each Row being Overwritten by Next

Question

I'm reading in from a file. Whenever I read in the word 'transition' I'm trying to add the next 5 elements that appear to a 2d array. I have a bunch of printf's which I have commented out that show that I am adding the proper element. However, once I finish reading in from file, I loop through to check my 2d array values and they have all been overwritten by the last row's values.

Here is my code

State* allStates[1002];
State* currentState;
char* input = argv[1];
char* inputStr = argv[2];
int maxTrans = atoi(argv[3]);
int transCount = -1;
FILE* inputFile;
char* transition[maxTrans][5];  

inputFile = fopen(input, "r");
if (inputFile == 0)
{
    perror("Can't open file\n");
    exit(-1);   
}
else
{
    char next[1000];
    //int counter = 0;
    while (fgets(next, 1000, inputFile) != NULL)
    {
        char *nextWord;
        nextWord = strtok_r(next, "\t");

        if (strcmp(nextWord, "state") == 0)
        {

            //counter++;
            nextWord = strtok_r(NULL, "\t");
            //puts(nextWord);
            int q = atoi(nextWord);
            nextWord = strtok_r(NULL, "\n");
            //puts(nextWord);
            if (strcmp(nextWord, "accept") == 0)
            {
                State* newState = makeState(q, 1, 0, 0);    
                allStates[q] = newState;
            }
            else if (strcmp(nextWord, "reject") == 0)
            {
                State* newState = makeState(q, 0, 1, 0);    
                allStates[q] = newState;
            }
            else if (strcmp(nextWord, "start") == 0)
            {
                State* newState = makeState(q, 0, 0, 1);    
                allStates[q] = newState;
                currentState = newState;
            } 
            else    
            {
                State* newState = makeState(q, 0, 0, 0);    
                allStates[q] = newState;
            }           
        }
        if (strcmp(nextWord, "transition") == 0)
        {
            //printf("\n");
            //setup 2d array of transitions
            transCount++;
            nextWord = strtok_r(NULL, "\t");
            //puts(nextWord);
            transition[transCount][0] = nextWord;
            //printf("%c", *transition[transCount][0]);
            nextWord = strtok_r(NULL, "\t");
            //puts(nextWord);
            transition[transCount][1] = nextWord;
            //printf("%c", *transition[transCount][1]);
            nextWord = strtok_r(NULL, "\t");
            //puts(nextWord);
            transition[transCount][2] = nextWord;
            //printf("%c", *transition[transCount][2]);
            nextWord = strtok_r(NULL, "\t");
            //puts(nextWord);
            transition[transCount][3] = nextWord;
            //printf("%c", *transition[transCount][3]);
            nextWord = strtok_r(NULL, "\n");
            //puts(nextWord);
            transition[transCount][4] = nextWord;   
            //printf("%c", *transition[transCount][4]); 

        }
    }

}   
fclose(inputFile);

int u = 0;
int y = 0;
char m = 'm';
for (u; u < 12; u++)
{
    printf("\n");
    for (y = 0; y < 5; y++)
    {
        //transition[u][y] = &m;

        printf("%c", *transition[u][y]);


    }
}

If the file I'm reading in looks like this,

transition 0 x 0 x R

transition 0 1 4 1 L

transition 0 0 1 x R

I expect the array to look like this

0x0xR

0141L

001xR

Instead the values of the array will be

001xR

001xR

001xR

I know that the overwriting happens at each row. ie: when I'm writing to row 2 the values become:

0141L

0141L

I'm really lost as to how to fix it though.

Answer 1

The problem was with my incorrect usage of strtok(). I took Dmitri's advice and used strdup() which allocates memory for the new string and I'm getting the proper results.

nextWord = strtok(NULL, "\t");
temp = strdup(nextWord);
transition[transCount][0] = temp;