Segmentation Fault

#include <stdio.h>
void strcp(char *,char *);
int main(){
char *s = "i am working";
char *t;
strcp(t,s);
printf("%s", t);
return 0;
}
void strcp(char *s, char *t){
while(*s++ = *t++);
}

/*This was my code. i compiled it and tried to execute it. but then it says
Segmentation fault

Any ideas on what is causing this trouble.

Thanks.*/

Your destination pointer t is not pointing to any storage area.

Your destination pointer t is not pointing to any storage area.
[/b]

Thank you.