copendir如何遍历目录结构

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

void traverseDirectory(const char *path) {
    DIR *dir = opendir(path);
    if (dir == NULL) {
        perror("opendir");
        return;
    }

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

        char fullPath[PATH_MAX];
        snprintf(fullPath, PATH_MAX, "%s/%s", path, entry->d_name);

        struct stat statbuf;
        if (stat(fullPath, &statbuf) == -1) {
            perror("stat");
            continue;
        }

        if (S_ISDIR(statbuf.st_mode)) {
            printf("Directory: %s\n", fullPath);
            traverseDirectory(fullPath); // Recursive call for subdirectories
        } else {
            printf("File: %s\n", fullPath);
        }
    }

    closedir(dir);
}

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

    traverseDirectory(argv[1]);
    return EXIT_SUCCESS;
}