fts_spike.c

#include <stdio.h>   // for fprintf, stderr, perror
#include <stdlib.h>  // for exit() and EXIT_FAILURE
#include <errno.h>   // for errno
#include <fts.h>     // for fts

int main(int argc, const char *argv[]) {
    char * const paths[] = {"/tmp", NULL};
    
    FTS *tree = fts_open(paths, FTS_COMFOLLOW|FTS_NOCHDIR, NULL);
    if (!tree) {
        perror("fts_open");
        exit(EXIT_FAILURE);
    }
    
    FTSENT *node;
    while ((node = fts_read(tree))) {
        switch (node->fts_info) {
            case FTS_D:
                printf("d %s\n", node->fts_path);
                break;
            case FTS_F:
                printf("f %s\n", node->fts_path);
                break;
            default:
                break;
        }
    }
    
    if (errno) {
        perror("fts_read");
        exit(EXIT_FAILURE);
    }
    
    if (fts_close(tree) == -1) {
        perror("fts_close");
        exit(EXIT_FAILURE);
    }
    
    return 0;
}