c - function to split a filepath into path and file

Question

Lets say I have a function:

void split_path_file(char** p, char** f, char *pf)
{
    //malloc and set *p to file path, malloc and set *f to file name
    //pf is the pointer to the full file and path "C:spongeobsquare.pants"
    // edit: leave pf in its origional state
}

Whats the best way to accomplish this?

Answer 1

void split_path_file(char** p, char** f, char *pf) {
    char *slash = pf, *next;
    while ((next = strpbrk(slash + 1, "\/"))) slash = next;
    if (pf != slash) slash++;
    *p = strndup(pf, slash - pf);
    *f = strdup(slash);
}

(If pf == slash, then there is no directory component.)