xref: /aosp_15_r20/external/llvm-libc/test/src/sys/socket/linux/bind_test.cpp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)
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 
TEST(LlvmLibcSocketTest,BindLocalSocket)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 }
55