mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
b0e3d89942
Qemu appears to define O_LARGEFILE as having its x86-64 value, which is an easy mistake to make since this is one of the few magic numbers that Linux special-cases for AARCH64.
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 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2023 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/nt/files.h"
|
|
#include "libc/sysv/consts/f.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
#include "libc/testlib/testlib.h"
|
|
|
|
int pipefd[2];
|
|
int stdoutBack;
|
|
|
|
void SetUpOnce(void) {
|
|
testlib_enable_tmp_setup_teardown();
|
|
}
|
|
|
|
void CaptureStdout(void) {
|
|
ASSERT_NE(-1, (stdoutBack = dup(1)));
|
|
ASSERT_SYS(0, 0, pipe(pipefd));
|
|
ASSERT_NE(-1, dup2(pipefd[1], 1));
|
|
}
|
|
|
|
void RestoreStdout(void) {
|
|
ASSERT_SYS(0, 1, dup2(stdoutBack, 1));
|
|
ASSERT_SYS(0, 0, close(stdoutBack));
|
|
ASSERT_SYS(0, 0, close(pipefd[1]));
|
|
ASSERT_SYS(0, 0, close(pipefd[0]));
|
|
}
|
|
|
|
TEST(specialfile, devNull) {
|
|
ASSERT_SYS(0, 3, creat("/dev/null", 0644));
|
|
// qemu-aarch64 defines o_largefile wrong
|
|
ASSERT_EQ(O_WRONLY, fcntl(3, F_GETFL) & ~(O_LARGEFILE | 0x00008000));
|
|
ASSERT_SYS(0, 2, write(3, "hi", 2));
|
|
ASSERT_SYS(0, 2, pwrite(3, "hi", 2, 0));
|
|
ASSERT_SYS(0, 2, pwrite(3, "hi", 2, 2));
|
|
ASSERT_SYS(0, 0, lseek(3, 0, SEEK_END));
|
|
ASSERT_SYS(0, 0, lseek(3, 0, SEEK_CUR));
|
|
if (!IsLinux()) {
|
|
// rhel7 doesn't have this behavior
|
|
ASSERT_SYS(0, 2, lseek(3, 2, SEEK_CUR));
|
|
ASSERT_SYS(0, 2, lseek(3, 2, SEEK_END));
|
|
}
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
TEST(specialfile, devNullRead) {
|
|
char buf[8] = {0};
|
|
ASSERT_SYS(0, 3, open("/dev/null", O_RDONLY));
|
|
// qemu-aarch64 defines o_largefile wrong
|
|
ASSERT_EQ(O_RDONLY, fcntl(3, F_GETFL) & ~(O_LARGEFILE | 0x00008000));
|
|
ASSERT_SYS(0, 0, read(3, buf, 8));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
TEST(specialfile, devStdout) {
|
|
char buf[8] = {8};
|
|
CaptureStdout();
|
|
ASSERT_SYS(0, 6, creat("/dev/stdout", 0644));
|
|
ASSERT_SYS(0, 2, write(6, "hi", 2));
|
|
ASSERT_EQ(2, read(pipefd[0], buf, 8));
|
|
ASSERT_STREQ("hi", buf);
|
|
ASSERT_SYS(ESPIPE, -1, pwrite(6, "hi", 2, 0));
|
|
ASSERT_SYS(ESPIPE, -1, lseek(6, 0, SEEK_END));
|
|
ASSERT_SYS(0, 0, close(6));
|
|
RestoreStdout();
|
|
}
|