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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/' ```
83 lines
3.5 KiB
C
83 lines
3.5 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 2022 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/runtime/runtime.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/testlib/testlib.h"
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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 SetUp(void) {
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int e = errno;
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if (splice(-1, 0, -1, 0, 0, 0) == -1 && errno == ENOSYS) {
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exit(0);
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}
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errno = e;
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}
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TEST(splice, einval) {
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ASSERT_SYS(0, 0, splice(0, 0, 1, 0, 0, -1));
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}
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TEST(splice, espipe) {
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int64_t x;
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int fds[2];
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ASSERT_SYS(0, 0, pipe(fds));
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ASSERT_SYS(0, 0, splice(0, 0, 4, &x, 0, 0));
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ASSERT_SYS(0, 0, close(4));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(splice, noOffsets_usesFilePointer) {
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// this test fails on rhel5 and rhel7
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int fds[2];
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char buf[16] = {0};
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ASSERT_SYS(0, 0, pipe(fds));
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ASSERT_SYS(0, 5, open("foo", O_RDWR | O_CREAT | O_TRUNC, 0644));
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ASSERT_SYS(0, 5, pwrite(5, "hello", 5, 0));
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ASSERT_SYS(0, 5, splice(5, 0, 4, 0, 5, 0));
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ASSERT_SYS(0, 5, splice(3, 0, 5, 0, 5, 0));
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ASSERT_SYS(0, 10, pread(5, buf, sizeof(buf), 0));
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ASSERT_STREQ("hellohello", buf);
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ASSERT_SYS(0, 0, close(5));
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ASSERT_SYS(0, 0, close(4));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(splice, offsets_doesntChangePointerAndIsReadOnly) {
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int fds[2];
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int64_t x = 0;
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char buf[16] = {0};
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ASSERT_SYS(0, 0, pipe(fds));
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ASSERT_SYS(0, 5, open("foo", O_RDWR | O_CREAT | O_TRUNC, 0644));
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ASSERT_SYS(0, 5, pwrite(5, "hello", 5, 0));
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ASSERT_SYS(0, 5, splice(5, &x, 4, 0, 5, 0));
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ASSERT_EQ(5, x);
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ASSERT_SYS(0, 5, splice(3, 0, 5, &x, 5, 0));
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ASSERT_EQ(10, x);
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ASSERT_SYS(0, 10, read(5, buf, sizeof(buf)));
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ASSERT_STREQ("hellohello", buf);
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ASSERT_SYS(0, 0, close(5));
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ASSERT_SYS(0, 0, close(4));
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ASSERT_SYS(0, 0, close(3));
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}
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