Cross-platform (POSIX and Win32) recursive directory and file traversal example in C99

traverse.c

// Recursive directory and file traversal
// I don't make any claim to the code below, as it's hacked together from various publicly-available examples
// Targeting gnu99/c99

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef _WIN32
#include <windows.h>
#else
#include <dirent.h>
#include <sys/stat.h>
#endif

void traverse_directory(const char *dir_path) {
#ifdef _WIN32
    WIN32_FIND_DATA find_data;
    HANDLE hFind;
    char search_path[1024];

    snprintf(search_path, sizeof(search_path), "%s\\*", dir_path);
    hFind = FindFirstFile(search_path, &find_data);

    if (hFind == INVALID_HANDLE_VALUE) {
        fprintf(stderr, "Error opening directory: %s\n", dir_path);
        return;
    }

    do {
        if (strcmp(find_data.cFileName, ".") == 0 || strcmp(find_data.cFileName, "..") == 0) {
            continue;
        }

        char path[1024];
        snprintf(path, sizeof(path), "%s\\%s", dir_path, find_data.cFileName);

        if (find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
            printf("Directory: %s\n", path);
            traverse_directory(path);
        } else {
            printf("File: %s\n", path);
        }
    } while (FindNextFile(hFind, &find_data) != 0);

    FindClose(hFind);
#else
    struct dirent *entry;
    DIR *dp = opendir(dir_path);

    if (dp == NULL) {
        perror("opendir");
        return;
    }

    while ((entry = readdir(dp))) {
        char path[1024];
        struct stat statbuf;

        if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
            continue;
        }

        snprintf(path, sizeof(path), "%s/%s", dir_path, entry->d_name);
        if (stat(path, &statbuf) == -1) {
            perror("stat");
            continue;
        }

        if (S_ISDIR(statbuf.st_mode)) {
            printf("Directory: %s\n", path);
            traverse_directory(path);
        } else {
            printf("File: %s\n", path);
        }
    }

    closedir(dp);
#endif
}