diff --git a/components/lwip/port/esp32/vfs_lwip.c b/components/lwip/port/esp32/vfs_lwip.c index 9704308e2e..517838e30e 100644 --- a/components/lwip/port/esp32/vfs_lwip.c +++ b/components/lwip/port/esp32/vfs_lwip.c @@ -70,13 +70,25 @@ static int lwip_ioctl_r_wrapper(int fd, int cmd, va_list args) return lwip_ioctl(fd, cmd, va_arg(args, void *)); } +static int lwip_fstat(int fd, struct stat * st) +{ + if (st == NULL || fd < LWIP_SOCKET_OFFSET || fd > (MAX_FDS - 1)) { + errno = EBADF; + return -1; + } + memset(st, 0, sizeof(*st)); + /* set the stat mode to socket type */ + st->st_mode = S_IFSOCK; + return 0; +} + void esp_vfs_lwip_sockets_register(void) { esp_vfs_t vfs = { .flags = ESP_VFS_FLAG_DEFAULT, .write = &lwip_write, .open = NULL, - .fstat = NULL, + .fstat = &lwip_fstat, .close = &lwip_close, .read = &lwip_read, .fcntl = &lwip_fcntl_r_wrapper, diff --git a/components/vfs/test/test_vfs_lwip.c b/components/vfs/test/test_vfs_lwip.c new file mode 100644 index 0000000000..064bb46d33 --- /dev/null +++ b/components/vfs/test/test_vfs_lwip.c @@ -0,0 +1,37 @@ +// Copyright 2021 Espressif Systems (Shanghai) CO LTD +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include +#include +#include +#include +#include "unity.h" +#include "test_utils.h" + +TEST_CASE("fstat() sets st_mode to socket type", "[vfs][lwip]") +{ + test_case_uses_tcpip(); + int socket_fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); + struct stat stat = { 0 }; + fstat(socket_fd, &stat); + + TEST_ASSERT_TRUE(S_ISSOCK(stat.st_mode)); + TEST_ASSERT_FALSE(S_ISBLK(stat.st_mode)); + TEST_ASSERT_FALSE(S_ISCHR(stat.st_mode)); + TEST_ASSERT_FALSE(S_ISDIR(stat.st_mode)); + TEST_ASSERT_FALSE(S_ISREG(stat.st_mode)); + TEST_ASSERT_FALSE(S_ISLNK(stat.st_mode)); + + close(socket_fd); +}