libc/test/src/sys/socket/linux/bind_test.cpp

   1 //===-- Unittests for bind ------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/sys/socket/bind.h"
  10 #include "src/sys/socket/socket.h"
  11
  12 #include "src/stdio/remove.h"
  13 #include "src/unistd/close.h"
  14
  15 #include "src/errno/libc_errno.h"
  16 #include "test/UnitTest/Test.h"
  17
  18 #include <sys/socket.h> // For AF_UNIX and SOCK_DGRAM
  19
  20 TEST(LlvmLibcSocketTest, BindLocalSocket) {
  21
  22   const char *FILENAME = "bind_file.test";
  23   auto SOCK_PATH = libc_make_test_file_path(FILENAME);
  24
  25   int sock = LIBC_NAMESPACE::socket(AF_UNIX, SOCK_DGRAM, 0);
  26   ASSERT_GE(sock, 0);
  27   ASSERT_ERRNO_SUCCESS();
  28
  29   struct sockaddr_un my_addr;
  30
  31   my_addr.sun_family = AF_UNIX;
  32   unsigned int i = 0;
  33   for (;
  34        SOCK_PATH[i] != '\0' && (i < sizeof(sockaddr_un) - sizeof(sa_family_t));
  35        ++i)
  36     my_addr.sun_path[i] = SOCK_PATH[i];
  37   my_addr.sun_path[i] = '\0';
  38
  39   // It's important that the path fits in the struct, if it doesn't then we
  40   // can't try to bind to the file.
  41   ASSERT_LT(
  42       i, static_cast<unsigned int>(sizeof(sockaddr_un) - sizeof(sa_family_t)));
  43
  44   int result =
  45       LIBC_NAMESPACE::bind(sock, reinterpret_cast<struct sockaddr *>(&my_addr),
  46                            sizeof(struct sockaddr_un));
  47
  48   ASSERT_EQ(result, 0);
  49   ASSERT_ERRNO_SUCCESS();
  50
  51   LIBC_NAMESPACE::close(sock);
  52
  53   LIBC_NAMESPACE::remove(SOCK_PATH);
  54 }