C code to list list directories and files with size on Linux simpler version

dirlist_simple.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
#include <limits.h>

typedef struct {
    off_t total;
    int depth;
} DirStats;

void list_directory(const char *basepath, DirStats *stats) {
    DIR *dir = opendir(basepath);
    if (!dir) {
        perror("opendir");
        return;
    }

    struct dirent *entry;
    struct stat statbuf;
    char fullpath[PATH_MAX];

    while ((entry = readdir(dir)) != NULL) {
        // Skip . and ..
        if (strcmp(entry->d_name, ".") == 0 || 
            strcmp(entry->d_name, "..") == 0) {
            continue;
        }

        // Construct full path
        snprintf(fullpath, sizeof(fullpath), "%s/%s", basepath, entry->d_name);

        // Get file info
        if (lstat(fullpath, &statbuf) == -1) {
            perror("lstat");
            continue;
        }

        // Print with indentation based on depth
        int indent = stats->depth * 2;

        if (S_ISDIR(statbuf.st_mode)) {
            printf("%*s📁 %s/\n", indent, "", entry->d_name);
            
            // Recurse into subdirectory
            DirStats substats = {0, stats->depth + 1};
            list_directory(fullpath, &substats);
            stats->total += substats.total;
        } else if (S_ISREG(statbuf.st_mode)) {
            printf("%*s├─ %s (%lld bytes)\n", indent, "", 
                   entry->d_name, (long long)statbuf.st_size);
            stats->total += statbuf.st_size;
        } else if (S_ISLNK(statbuf.st_mode)) {
            printf("%*s🔗 %s -> (symlink)\n", indent, "", entry->d_name);
        }
    }

    closedir(dir);
}

int main(int argc, char *argv[]) {
    if (argc != 2) {
        fprintf(stderr, "Usage: %s <directory_path>\n", argv[0]);
        exit(EXIT_FAILURE);
    }

    printf("Scanning: %s\n\n", argv[1]);

    DirStats stats = {0, 0};
    list_directory(argv[1], &stats);

    printf("\n📊 Total size: %lld bytes (%.2f MB)\n", 
           (long long)stats.total, stats.total / (1024.0 * 1024.0));

    return 0;
}