linux c 创建多级文件夹

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

int create_dir_recursive(const char *path, mode_t mode) {
    char tmp[256];
    char *p = NULL;
    size_t len;

    snprintf(tmp, sizeof(tmp), "%s", path);
    len = strlen(tmp);
    if (tmp[len - 1] == '/') {
        tmp[len - 1] = 0;
    }
    for (p = tmp + 1; *p; p++) {
        if (*p == '/') {
            *p = 0;
            if (access(tmp, F_OK)) {
                if (mkdir(tmp, mode)) {
                    return -1;
                }
            }
            *p = '/';
        }
    }
    return mkdir(tmp, mode);
}

int main() {
    const char *dir_path = "/home/user/documents/project/subfolder";
    mode_t mode = 0755; // 设置目录权限

    if (create_dir_recursive(dir_path, mode) == -1) {
        perror("mkdir");
        return EXIT_FAILURE;
    }

    printf("Directory created successfully.\n");
    return EXIT_SUCCESS;
}