mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
ebf784d4f5
- Introduce ualarm() function - Make rename() report EISEMPTY on Windows - Always raise EINVAL upon open(O_RDONLY|O_TRUNC) - Add macro so ./configure will detect SOCK_CLOEXEC - Fix O_TRUNC without O_CREAT not working on Windows - Let fcntl(F_SETFL) change O_APPEND status on Windows - Make sure pwrite() / pread() report ESPIPE on sockets - Raise ESPIPE on Windows when pwrite() is used on pipe - Properly compute O_APPEND CreateFile() flags on Windows - Don't require O_DIRECTORY to open directories on Windows - Fix more instances of Windows reporting EISDIR and ENOTDIR - Normalize EFTYPE and EMLINK to ELOOP on NetBSD and FreeBSD - Make unlink() / rmdir() work on read-only files on Windows - Validate UTF-8 on Windows paths to fix bug with overlong NUL - Always print signal name to stderr when crashing due to SIG_DFL - Fix Windows bug where denormalized paths >260 chars didn't work - Block signals on BSDs when thread exits before trashing its own stack
122 lines
4.9 KiB
C
122 lines
4.9 KiB
C
/*-*- 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 2021 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/calls/internal.h"
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#include "libc/errno.h"
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#include "libc/fmt/fmt.h"
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#include "libc/limits.h"
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#include "libc/log/check.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/sysv/consts/af.h"
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#include "libc/sysv/consts/ipproto.h"
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#include "libc/sysv/consts/o.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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#include "libc/x/x.h"
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char testlib_enable_tmp_setup_teardown;
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void SetUpOnce(void) {
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ASSERT_SYS(0, 0, pledge("stdio rpath wpath cpath fattr proc inet", 0));
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}
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TEST(lseek, ebadf) {
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ASSERT_SYS(EBADF, -1, lseek(-1, 0, SEEK_SET));
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ASSERT_SYS(EBADF, -1, lseek(+3, 0, SEEK_SET));
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}
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TEST(lseek, badWhence_einval) {
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ASSERT_SYS(0, 3, creat("foo", 0644));
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ASSERT_SYS(EINVAL, -1, lseek(3, 0, -1));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, negativeComputedOffset_einval) {
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ASSERT_SYS(0, 3, creat("foo", 0644));
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ASSERT_SYS(EINVAL, -1, lseek(3, -1, SEEK_SET));
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ASSERT_SYS(EINVAL, -1, lseek(3, -1, SEEK_CUR));
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ASSERT_SYS(EINVAL, -1, lseek(3, -1, SEEK_END));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, 64bit) {
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ASSERT_SYS(0, 3, creat("foo", 0644));
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ASSERT_SYS(0, 0x100000001, lseek(3, 0x100000001, SEEK_SET));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, isPipe_ESPIPE) {
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int fds[2];
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char buf[2];
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ASSERT_SYS(0, 0, pipe(fds));
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ASSERT_SYS(ESPIPE, -1, lseek(3, 0, SEEK_SET));
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ASSERT_SYS(ESPIPE, -1, pwrite(4, "hi", 2, 0));
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ASSERT_SYS(ESPIPE, -1, pread(3, buf, 2, 0));
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EXPECT_SYS(0, 0, close(4));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, isSocket_ESPIPE) {
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char buf[2];
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ASSERT_SYS(0, 3, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
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ASSERT_SYS(ESPIPE, -1, lseek(3, 0, SEEK_SET));
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ASSERT_SYS(ESPIPE, -1, pwrite(3, "hi", 2, 0));
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ASSERT_SYS(ESPIPE, -1, pread(3, buf, 2, 0));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, filePositionChanges_areObservableAcrossDup) {
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ASSERT_SYS(0, 3, creat("wut", 0644));
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ASSERT_SYS(0, 4, dup(3));
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ASSERT_SYS(0, 0, lseek(3, 0, SEEK_CUR));
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ASSERT_SYS(0, 1, lseek(4, 1, SEEK_SET));
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ASSERT_SYS(0, 1, lseek(3, 0, SEEK_CUR));
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EXPECT_SYS(0, 0, close(4));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, filePositionChanges_areObservableAcrossProcesses) {
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char buf[8] = {0};
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ASSERT_SYS(0, 3, open("wut", O_RDWR | O_CREAT, 0644));
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ASSERT_SYS(0, 3, write(3, "wut", 3));
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ASSERT_SYS(0, 0, lseek(3, 0, SEEK_SET));
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SPAWN(fork);
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ASSERT_SYS(0, 1, lseek(3, 1, SEEK_SET));
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EXITS(0);
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EXPECT_SYS(0, 1, read(3, buf, 1));
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EXPECT_EQ('u', buf[0]);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(lseek, beyondEndOfFile_isZeroExtendedUponSubsequentWrite) {
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char buf[8] = {1, 1};
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ASSERT_SYS(0, 3, open("foo", O_RDWR | O_CREAT | O_TRUNC, 0644));
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ASSERT_SYS(0, 2, lseek(3, 2, SEEK_SET));
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ASSERT_SYS(0, 2, lseek(3, 0, SEEK_CUR));
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ASSERT_SYS(0, 0, pread(3, buf, 8, 0)); // lseek() alone doesn't extend
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ASSERT_SYS(0, 2, write(3, buf, 2)); // does extend once i/o happens
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ASSERT_SYS(0, 4, pread(3, buf, 8, 0));
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ASSERT_EQ(0, buf[0]);
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ASSERT_EQ(0, buf[1]);
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ASSERT_EQ(1, buf[2]);
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ASSERT_EQ(1, buf[3]);
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ASSERT_SYS(0, 0, close(3));
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}
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