strtok and reading from several functions

Question

    int main () {
    char *results = NULL;        
    char line[]   =   "a,b,c"; 
    const char delim[] = ",";

    // First token
    results = strtok(line, delim);

    if (strcmp(results, "a") == 0)
    { OtherFunction(line); }
    }

    void OtherFunction(char* line)
    {

       results = strtok(line, delim);

       // Read through
       while(results != NULL ) 
       {
          printf(" %s\n", results);

          results = strtok(NULL, delim);
       }
    }

Why I am not getting the b and c in the other function but if I do the same thing in the original it works?

Answer 1

strtok() is a horrible abomination. It's not thread-safe, re-entrant or any of the good things, it keeps state (it remembers where it last read from) and it modifies the string it operates on !
strtok() replaces the delimiters you specify with '\\0' in the string. When you call strtok(line, delim) the second time (in OtherFunction() ), the string is already null-terminated after the a .
Also, using strtok() on a string literal is not allowed because of the change it causes.