/*
 * Copyright (C) NGINX, Inc.
 */

#include <nxt_main.h>


static nxt_int_t nxt_fs_mkdir(const u_char *dir, mode_t mode);


nxt_int_t
nxt_fs_mkdir_all(const u_char *dir, mode_t mode)
{
    char    *start, *end, *dst;
    size_t  dirlen;
    char    path[PATH_MAX];

    dirlen = nxt_strlen(dir);

    nxt_assert(dirlen < PATH_MAX && dirlen > 1 && dir[0] == '/');

    dst = path;
    start = end = (char *) dir;

    while (*start != '\0') {
        if (*start == '/') {
            *dst++ = *start++;
        }

        end = strchr(start, '/');
        if (end == NULL) {
            end = ((char *)dir + dirlen);
        }

        dst = nxt_cpymem(dst, start, end - start);
        *dst = '\0';

        if (nxt_slow_path(nxt_fs_mkdir((u_char *) path, mode) != NXT_OK
                          && nxt_errno != EEXIST))
        {
            return NXT_ERROR;
        }

        start = end;
    }

    return NXT_OK;
}


nxt_int_t
nxt_fs_mkdir_parent(const u_char *path, mode_t mode)
{
    char       *ptr, *dir;
    nxt_int_t  ret;

    dir = nxt_strdup(path);
    if (nxt_slow_path(dir == NULL)) {
        return NXT_ERROR;
    }

    ret = NXT_OK;

    ptr = strrchr(dir, '/');
    if (nxt_fast_path(ptr != NULL)) {
        *ptr = '\0';
        ret = nxt_fs_mkdir((const u_char *) dir, mode);
    }

    nxt_free(dir);

    return ret;
}


static nxt_int_t
nxt_fs_mkdir(const u_char *dir, mode_t mode)
{
    if (nxt_fast_path(mkdir((const char *) dir, mode) == 0)) {
        return NXT_OK;
    }

    return NXT_ERROR;
}