mirror of
https://github.com/jart/cosmopolitan.git
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111 lines
4.7 KiB
C
111 lines
4.7 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 2020 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/struct/sigaction.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/safemacros.internal.h"
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#include "libc/limits.h"
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#include "libc/mem/gc.internal.h"
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#include "libc/nexgen32e/vendor.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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struct stat st;
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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", 0));
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}
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TEST(ftruncate, ebadf) {
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ASSERT_SYS(EBADF, -1, ftruncate(-1, 0));
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ASSERT_SYS(EBADF, -1, ftruncate(+3, 0));
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}
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TEST(ftruncate, negativeLength_einval) {
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ASSERT_SYS(0, 3, creat("foo", 0755));
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ASSERT_SYS(EINVAL, -1, ftruncate(3, -1));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(ftruncate, doesntHaveWritePermission_einval) {
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ASSERT_SYS(0, 3, creat("foo", 0755));
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ASSERT_SYS(0, 5, write(3, "hello", 5));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("foo", O_RDONLY));
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ASSERT_SYS(EINVAL, -1, ftruncate(3, 0));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(ftruncate, pipeFd_einval) {
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int fds[2];
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ASSERT_SYS(0, 0, pipe(fds));
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ASSERT_SYS(EINVAL, -1, ftruncate(3, 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(ftruncate, efbig) {
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// FreeBSD and RHEL7 return 0 (why??)
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if (IsLinux() || IsFreebsd()) return;
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sighandler_t old = signal(SIGXFSZ, SIG_IGN);
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ASSERT_SYS(0, 3, creat("foo", 0755));
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ASSERT_SYS(IsWindows() ? EINVAL : EFBIG, -1, ftruncate(3, INT64_MAX));
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ASSERT_SYS(0, 0, close(3));
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signal(SIGXFSZ, old);
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}
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TEST(ftruncate, test) {
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char got[512], want[512] = "helloworld"; // tests zero-extending
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ASSERT_SYS(0, 3, open("foo", O_CREAT | O_TRUNC | O_RDWR, 0755));
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ASSERT_SYS(0, 5, write(3, "hello", 5));
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ASSERT_SYS(0, 0, ftruncate(3, 8192));
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ASSERT_SYS(0, 5, lseek(3, 0, SEEK_CUR)); // doesn't change position
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ASSERT_SYS(0, 5, write(3, "world", 5));
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ASSERT_SYS(0, 0, fstat(3, &st));
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ASSERT_EQ(8192, st.st_size);
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#if 0
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if (!IsGenuineBlink()) {
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if (IsWindows() || IsNetbsd() || IsOpenbsd()) { //
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ASSERT_EQ(8192 / 512, st.st_blocks); // 8192 is physical size
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} else if (IsFreebsd()) { //
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ASSERT_EQ(512 / 512, st.st_blocks); // 512 is physical size
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} else if (IsLinux() || IsXnu()) { //
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ASSERT_EQ(4096 / 512, st.st_blocks); // 4096 is physical size
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} else {
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notpossible;
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}
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}
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#endif
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ASSERT_SYS(0, 512, pread(3, got, 512, 0));
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ASSERT_EQ(0, memcmp(want, got, 512));
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ASSERT_SYS(0, 0, ftruncate(3, 0)); // shrink file to be empty
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ASSERT_SYS(0, 0, pread(3, got, 512, 0));
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ASSERT_SYS(0, 0, read(3, got, 512));
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ASSERT_SYS(0, 10, lseek(3, 0, SEEK_CUR)); // position stays past eof
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ASSERT_SYS(0, 0, close(3));
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}
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