linux c 随手写了个建立多级目录的函数

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


static int create_multi_dir(const char *path)
{
        int i, len;

        len = strlen(path);
        char dir_path[len+1];
        dir_path[len] = '\0';

        strncpy(dir_path, path, len);

        for (i=0; i<len; i++)
        {
                if (dir_path[i] == '/' && i > 0)
                {
                        dir_path[i]='\0';
                        if (access(dir_path, F_OK) < 0)
                        {
                                if (mkdir(dir_path, 0755) < 0)
                                {
                                        printf("mkdir=%s:msg=%s\n", dir_path, strerror(errno));
                                        return -1;
                                }
                        }
                        dir_path[i]='/';
                }
        }

        return 0;
}

int main(int argc, char *argv[])
{

        create_multi_dir(argv[1]);
        return 0;
}

希望对新手有帮助