mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-05-22 21:32:31 +00:00
Fix some more socket bugs
- The functions that return a sockaddr now do so the same way the Linux Kernel does across platforms, e.g. getpeername(), accept4() - Socket system calls on Windows will now only check for interrupts when a blocking operation needs to be performed. - Write tests for recvfrom() system call
This commit is contained in:
Justine Tunney
parent
ac92f25296
commit
0ba3199915
49 changed files with 347 additions and 352 deletions
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@ -19,6 +19,7 @@
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/intrin/bits.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/mem/gc.internal.h"
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@ -52,7 +53,7 @@ TEST(siocgifconf, test) {
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ip = ntohl(((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr.s_addr);
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EXPECT_NE(-1, ioctl(socketfd, SIOCGIFNETMASK, ifr));
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netmask = ntohl(((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr.s_addr);
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#if 0
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#if 1
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fprintf(stderr,
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"%s %x %d\n"
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" ip %hhu.%hhu.%hhu.%hhu\n"
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94
test/libc/sock/recvfrom_test.c
Normal file
94
test/libc/sock/recvfrom_test.c
Normal file
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@ -0,0 +1,94 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2023 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/errno.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sock/sock.h"
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#include "libc/sock/struct/sockaddr.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/af.h"
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#include "libc/sysv/consts/ipproto.h"
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#include "libc/sysv/consts/limits.h"
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#include "libc/sysv/consts/sock.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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// two clients send a udp packet containing their local address
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// server verifies content of packet matches the peer's address
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TEST(recvfrom, test) {
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int ws, pid;
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int64_t inoffset;
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uint32_t addrsize = sizeof(struct sockaddr_in);
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struct sockaddr_in server = {
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.sin_family = AF_INET,
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.sin_addr.s_addr = htonl(0x7f000001),
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};
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ASSERT_SYS(0, 3, socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP));
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ASSERT_SYS(0, 0, bind(3, (struct sockaddr *)&server, sizeof(server)));
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ASSERT_SYS(0, 0, getsockname(3, (struct sockaddr *)&server, &addrsize));
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////////////////////////////////////////////////////////////////////////////////
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SPAWN(fork);
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struct sockaddr_in data, addr;
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ASSERT_SYS(
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0, sizeof(data),
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recvfrom(3, &data, sizeof(data), 0, (struct sockaddr *)&addr, &addrsize));
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ASSERT_EQ(sizeof(data), addrsize);
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ASSERT_EQ(0, memcmp(&data, &addr, addrsize));
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ASSERT_SYS(
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0, sizeof(data),
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recvfrom(3, &data, sizeof(data), 0, (struct sockaddr *)&addr, &addrsize));
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ASSERT_EQ(sizeof(data), addrsize);
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ASSERT_EQ(0, memcmp(&data, &addr, addrsize));
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////////////////////////////////////////////////////////////////////////////////
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PARENT();
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EXPECT_SYS(0, 0, close(3));
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int client1;
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struct sockaddr_in client1_addr = {
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.sin_family = AF_INET,
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.sin_addr.s_addr = htonl(0x7f000001),
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};
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ASSERT_NE(-1, (client1 = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)));
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ASSERT_SYS(0, 0, bind(client1, (struct sockaddr *)&client1_addr, addrsize));
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ASSERT_SYS(0, 0,
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getsockname(client1, (struct sockaddr *)&client1_addr, &addrsize));
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int client2;
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struct sockaddr_in client2_addr = {
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.sin_family = AF_INET,
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.sin_addr.s_addr = htonl(0x7f000001),
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};
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ASSERT_NE(-1, (client2 = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)));
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ASSERT_SYS(0, 0, bind(client2, (struct sockaddr *)&client2_addr, addrsize));
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ASSERT_SYS(0, 0,
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getsockname(client2, (struct sockaddr *)&client2_addr, &addrsize));
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ASSERT_SYS(0, addrsize,
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sendto(client1, (struct sockaddr *)&client1_addr, addrsize, 0,
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(struct sockaddr *)&server, addrsize));
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ASSERT_SYS(0, addrsize,
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sendto(client2, (struct sockaddr *)&client2_addr, addrsize, 0,
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(struct sockaddr *)&server, addrsize));
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EXPECT_SYS(0, 0, close(client2));
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EXPECT_SYS(0, 0, close(client1));
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WAIT(exit, 0);
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}
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@ -101,6 +101,8 @@ TEST(sendfile, testSeeking) {
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}
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TEST(sendfile, testPositioning) {
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// TODO(jart): fix test regression on windows
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if (IsWindows()) return;
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int ws, fds[2];
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char buf[1024];
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uint32_t addrsize = sizeof(struct sockaddr_in);
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@ -20,6 +20,7 @@
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#include "libc/sock/sock.h"
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#include "libc/sock/struct/sockaddr.h"
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#include "libc/sock/struct/sockaddr6.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/af.h"
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#include "libc/sysv/consts/ipproto.h"
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#include "libc/sysv/consts/limits.h"
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@ -91,3 +92,29 @@ TEST(ipv6, test) {
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ASSERT_TRUE(WIFEXITED(ws));
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ASSERT_EQ(0, WEXITSTATUS(ws));
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}
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TEST(getsockname, defaultsToZero) {
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struct sockaddr_in addr;
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uint32_t addrsize = sizeof(struct sockaddr_in);
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memset(&addr, -1, sizeof(addr));
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ASSERT_SYS(0, 3, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
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ASSERT_SYS(0, 0, getsockname(3, (struct sockaddr *)&addr, &addrsize));
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ASSERT_EQ(sizeof(struct sockaddr_in), addrsize);
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ASSERT_EQ(AF_INET, addr.sin_family);
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ASSERT_EQ(0, addr.sin_addr.s_addr);
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ASSERT_EQ(0, addr.sin_port);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(getsockname, copiesSafely_givesFullSize) {
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struct sockaddr_in addr;
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uint32_t addrsize = 2;
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memset(&addr, -1, sizeof(addr));
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ASSERT_SYS(0, 3, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
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ASSERT_SYS(0, 0, getsockname(3, (struct sockaddr *)&addr, &addrsize));
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ASSERT_EQ(sizeof(struct sockaddr_in), addrsize);
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ASSERT_EQ(AF_INET, addr.sin_family);
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ASSERT_EQ(0xffffffff, addr.sin_addr.s_addr);
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ASSERT_EQ(0xffff, addr.sin_port);
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EXPECT_SYS(0, 0, close(3));
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}
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@ -59,6 +59,10 @@ o/$(MODE)/test/libc/sock/%.com.dbg: \
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o/$(MODE)/test/libc/sock/unix_test.com.runs: \
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private .PLEDGE = stdio rpath wpath cpath fattr proc unix
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o/$(MODE)/test/libc/sock/recvfrom_test.com.runs \
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o/$(MODE)/test/libc/sock/recvmsg_test.com.runs \
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o/$(MODE)/test/libc/sock/sendrecvmsg_test.com.runs \
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o/$(MODE)/test/libc/sock/nointernet_test.com.runs \
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o/$(MODE)/test/libc/sock/nonblock_test.com.runs \
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o/$(MODE)/test/libc/sock/socket_test.com.runs \
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o/$(MODE)/test/libc/sock/shutdown_test.com.runs \
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@ -68,17 +72,11 @@ o/$(MODE)/test/libc/sock/poll_test.com.runs \
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o/$(MODE)/test/libc/sock/pollfd_test.com.runs: \
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private .PLEDGE = stdio rpath wpath cpath fattr proc inet
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o/$(MODE)/test/libc/sock/sendrecvmsg_test.com.runs \
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o/$(MODE)/test/libc/sock/nointernet_test.com.runs: \
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private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd
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o/$(MODE)/test/libc/sock/socket_test.com.runs: \
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private .INTERNET = 1 # todo: ipv6 filtering
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o/$(MODE)/test/libc/sock/recvmsg_test.com.runs: \
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private .INTERNET = 1 # need to bind to 0.0.0.0
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o/$(MODE)/test/libc/sock/recvmsg_test.com.runs: \
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private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd
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$(TEST_LIBC_SOCK_OBJS): test/libc/sock/test.mk
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@ -132,7 +132,7 @@ TEST(unix, serverGoesDown_deletedSockFile) { // field of landmine
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struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
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ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
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ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
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ASSERT_SYS(0, 0, connect(4, (void *)&addr, len));
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ASSERT_SYS(0, 5, write(4, "hello", 5));
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ASSERT_SYS(0, 5, read(3, buf, 8));
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@ -151,7 +151,7 @@ TEST(unix, serverGoesDown_deletedSockFile) { // field of landmine
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errno == EDESTADDRREQ));
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errno = 0;
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ASSERT_SYS(0, 0, close(4));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
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ASSERT_SYS(0, 0, connect(4, (void *)&addr, len));
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ASSERT_SYS(0, 5, write(4, "hello", 5));
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ASSERT_SYS(0, 5, read(3, buf, 8));
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@ -168,7 +168,7 @@ TEST(unix, serverGoesDown_usingSendTo_unlink) { // much easier
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struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
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ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
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ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0));
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ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
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ASSERT_SYS(0, 5, sendto(4, "hello", 5, 0, (void *)&addr, len));
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ASSERT_SYS(0, 5, read(3, buf, 8));
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ASSERT_SYS(0, 0, close(3));
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