process_dir.c

/* See compilation notes in show_tree.c or charct.c*/
#include "process_dir.h"
#define _GNU_SOURCE //cause stdio.h to include asprintf
#include <stdio.h>  //asprintf
#include <dirent.h> //struct dirent
#include <stdlib.h> //free

int process_dir_r(filestruct level){
    if (!level.fullname){
        if (level.name) level.fullname=level.name;
        else            level.fullname=".";
    }
    int errct=0;

    DIR *current=opendir(level.fullname);
    if (!current) return 1;
    struct dirent *entry;
    while((entry=readdir(current))) {
        if (entry->d_name[0]=='.') continue;
        filestruct next_level = level;
        next_level.name = entry->d_name;
        asprintf(&next_level.fullname, "%s/%s", level.fullname, entry->d_name);

        if (entry->d_type==DT_DIR){
            next_level.depth ++;
            if (level.directory_action) level.directory_action(next_level);
            errct+= process_dir_r(next_level);
        }
        else if (entry->d_type==DT_REG && level.file_action){
             level.file_action(next_level);
             errct+= next_level.error;
        }
        free(next_level.fullname);
    }
    closedir(current);
    return errct;
}