Thread: filename pattern matching

Here's a function that matches a filter (like *.c) to a filename (like hippo.c).

Code:

int match(char *f, char *s) {
    char *t;

    while(1) {
        if(*f == '?' || *s == '?') ;
        else if(*f == '*') {
            t = s;
            while(1) {
                if(match(f+1, t)) return 1;
                if(!*t++) break;
            }

            return 0;
        }
        else if(*s == '*') {
            t = f;
            while(1) {
                if(match(s+1, t)) return 1;
                if(!*t++) break;
            }

            return 0;
        }
        else if(*f != *s) return 0;

        if(!*s || !*f) break;
        s++, f++;
    }

    return *f || *s ? 0 : 1;
}

It returns 1 if there's a match, 0 otherwise.

There's nothing wrong with it (as far as I can see), I was just wondering how it could be improved. It's a little too slow for me.

Before anyone points it out, the * matching could be removed from one of the arguments.