check if string contains substring c
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
const char *tmp = "This string literal is arbitrary";
int main(int argc, char *argv[]){
char *ret;
ret = strstr(tmp, "literal");
if (ret)
printf("found substring at address %pn", ret);
else
printf("no substring found!n");
exit(EXIT_SUCCESS);
}