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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et 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/dce.h"
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#include "libc/errno.h"
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#include "libc/nt/files.h"
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#include "libc/sysv/consts/f.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/testlib/testlib.h"
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int pipefd[2];
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int stdoutBack;
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void SetUpOnce(void) {
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testlib_enable_tmp_setup_teardown();
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}
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void CaptureStdout(void) {
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ASSERT_NE(-1, (stdoutBack = dup(1)));
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ASSERT_SYS(0, 0, pipe(pipefd));
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ASSERT_NE(-1, dup2(pipefd[1], 1));
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}
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void RestoreStdout(void) {
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ASSERT_SYS(0, 1, dup2(stdoutBack, 1));
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ASSERT_SYS(0, 0, close(stdoutBack));
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ASSERT_SYS(0, 0, close(pipefd[1]));
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ASSERT_SYS(0, 0, close(pipefd[0]));
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}
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TEST(specialfile, devNull) {
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ASSERT_SYS(0, 3, creat("/dev/null", 0644));
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// qemu-aarch64 defines o_largefile wrong
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ASSERT_EQ(O_WRONLY, fcntl(3, F_GETFL) & ~(O_LARGEFILE | 0x00008000));
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ASSERT_SYS(0, 2, write(3, "hi", 2));
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ASSERT_SYS(0, 2, pwrite(3, "hi", 2, 0));
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ASSERT_SYS(0, 2, pwrite(3, "hi", 2, 2));
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ASSERT_SYS(0, 0, lseek(3, 0, SEEK_END));
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ASSERT_SYS(0, 0, lseek(3, 0, SEEK_CUR));
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if (!IsLinux()) {
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// rhel7 doesn't have this behavior
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ASSERT_SYS(0, 2, lseek(3, 2, SEEK_CUR));
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ASSERT_SYS(0, 2, lseek(3, 2, SEEK_END));
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}
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(specialfile, devNullRead) {
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char buf[8] = {0};
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ASSERT_SYS(0, 3, open("/dev/null", O_RDONLY));
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// qemu-aarch64 defines o_largefile wrong
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ASSERT_EQ(O_RDONLY, fcntl(3, F_GETFL) & ~(O_LARGEFILE | 0x00008000));
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ASSERT_SYS(0, 0, read(3, buf, 8));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(specialfile, devStdout) {
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char buf[8] = {8};
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CaptureStdout();
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ASSERT_SYS(0, 6, creat("/dev/stdout", 0644));
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ASSERT_SYS(0, 2, write(6, "hi", 2));
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ASSERT_EQ(2, read(pipefd[0], buf, 8));
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ASSERT_STREQ("hi", buf);
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ASSERT_SYS(ESPIPE, -1, pwrite(6, "hi", 2, 0));
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ASSERT_SYS(ESPIPE, -1, lseek(6, 0, SEEK_END));
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ASSERT_SYS(0, 0, close(6));
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RestoreStdout();
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}
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