Cory McWilliams
79022e1e1f
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3621 ed5197a5-7fde-0310-b194-c3ffbd925b24
268 lines
7.0 KiB
C
268 lines
7.0 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "linux-syscalls.h"
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#include <unistd.h>
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#include <signal.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <errno.h>
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#if defined(__arm__)
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# if defined(__thumb__) || defined(__ARM_EABI__)
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# define UV_SYSCALL_BASE 0
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# else
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# define UV_SYSCALL_BASE 0x900000
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# endif
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#endif /* __arm__ */
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#ifndef __NR_recvmmsg
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# if defined(__x86_64__)
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# define __NR_recvmmsg 299
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# elif defined(__arm__)
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# define __NR_recvmmsg (UV_SYSCALL_BASE + 365)
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# endif
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#endif /* __NR_recvmsg */
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#ifndef __NR_sendmmsg
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# if defined(__x86_64__)
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# define __NR_sendmmsg 307
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# elif defined(__arm__)
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# define __NR_sendmmsg (UV_SYSCALL_BASE + 374)
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# endif
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#endif /* __NR_sendmmsg */
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#ifndef __NR_utimensat
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# if defined(__x86_64__)
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# define __NR_utimensat 280
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# elif defined(__i386__)
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# define __NR_utimensat 320
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# elif defined(__arm__)
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# define __NR_utimensat (UV_SYSCALL_BASE + 348)
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# endif
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#endif /* __NR_utimensat */
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#ifndef __NR_preadv
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# if defined(__x86_64__)
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# define __NR_preadv 295
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# elif defined(__i386__)
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# define __NR_preadv 333
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# elif defined(__arm__)
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# define __NR_preadv (UV_SYSCALL_BASE + 361)
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# endif
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#endif /* __NR_preadv */
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#ifndef __NR_pwritev
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# if defined(__x86_64__)
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# define __NR_pwritev 296
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# elif defined(__i386__)
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# define __NR_pwritev 334
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# elif defined(__arm__)
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# define __NR_pwritev (UV_SYSCALL_BASE + 362)
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# endif
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#endif /* __NR_pwritev */
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#ifndef __NR_dup3
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# if defined(__x86_64__)
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# define __NR_dup3 292
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# elif defined(__i386__)
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# define __NR_dup3 330
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# elif defined(__arm__)
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# define __NR_dup3 (UV_SYSCALL_BASE + 358)
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# endif
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#endif /* __NR_pwritev */
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#ifndef __NR_copy_file_range
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# if defined(__x86_64__)
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# define __NR_copy_file_range 326
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# elif defined(__i386__)
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# define __NR_copy_file_range 377
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# elif defined(__s390__)
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# define __NR_copy_file_range 375
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# elif defined(__arm__)
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# define __NR_copy_file_range (UV_SYSCALL_BASE + 391)
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# elif defined(__aarch64__)
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# define __NR_copy_file_range 285
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# elif defined(__powerpc__)
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# define __NR_copy_file_range 379
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# elif defined(__arc__)
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# define __NR_copy_file_range 285
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# endif
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#endif /* __NR_copy_file_range */
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#ifndef __NR_statx
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# if defined(__x86_64__)
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# define __NR_statx 332
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# elif defined(__i386__)
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# define __NR_statx 383
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# elif defined(__aarch64__)
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# define __NR_statx 397
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# elif defined(__arm__)
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# define __NR_statx (UV_SYSCALL_BASE + 397)
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# elif defined(__ppc__)
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# define __NR_statx 383
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# elif defined(__s390__)
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# define __NR_statx 379
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# endif
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#endif /* __NR_statx */
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#ifndef __NR_getrandom
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# if defined(__x86_64__)
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# define __NR_getrandom 318
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# elif defined(__i386__)
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# define __NR_getrandom 355
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# elif defined(__aarch64__)
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# define __NR_getrandom 384
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# elif defined(__arm__)
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# define __NR_getrandom (UV_SYSCALL_BASE + 384)
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# elif defined(__ppc__)
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# define __NR_getrandom 359
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# elif defined(__s390__)
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# define __NR_getrandom 349
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# endif
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#endif /* __NR_getrandom */
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struct uv__mmsghdr;
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int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
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#if defined(__i386__)
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unsigned long args[4];
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int rc;
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args[0] = (unsigned long) fd;
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args[1] = (unsigned long) mmsg;
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args[2] = (unsigned long) vlen;
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args[3] = /* flags */ 0;
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/* socketcall() raises EINVAL when SYS_SENDMMSG is not supported. */
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rc = syscall(/* __NR_socketcall */ 102, 20 /* SYS_SENDMMSG */, args);
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if (rc == -1)
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if (errno == EINVAL)
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errno = ENOSYS;
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return rc;
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#elif defined(__NR_sendmmsg)
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return syscall(__NR_sendmmsg, fd, mmsg, vlen, /* flags */ 0);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
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#if defined(__i386__)
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unsigned long args[5];
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int rc;
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args[0] = (unsigned long) fd;
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args[1] = (unsigned long) mmsg;
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args[2] = (unsigned long) vlen;
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args[3] = /* flags */ 0;
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args[4] = /* timeout */ 0;
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/* socketcall() raises EINVAL when SYS_RECVMMSG is not supported. */
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rc = syscall(/* __NR_socketcall */ 102, 19 /* SYS_RECVMMSG */, args);
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if (rc == -1)
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if (errno == EINVAL)
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errno = ENOSYS;
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return rc;
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#elif defined(__NR_recvmmsg)
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return syscall(__NR_recvmmsg, fd, mmsg, vlen, /* flags */ 0, /* timeout */ 0);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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ssize_t uv__preadv(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
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#if defined(__NR_preadv)
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return syscall(__NR_preadv, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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ssize_t uv__pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
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#if defined(__NR_pwritev)
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return syscall(__NR_pwritev, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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int uv__dup3(int oldfd, int newfd, int flags) {
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#if defined(__NR_dup3)
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return syscall(__NR_dup3, oldfd, newfd, flags);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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ssize_t
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uv__fs_copy_file_range(int fd_in,
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ssize_t* off_in,
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int fd_out,
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ssize_t* off_out,
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size_t len,
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unsigned int flags)
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{
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#ifdef __NR_copy_file_range
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return syscall(__NR_copy_file_range,
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fd_in,
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off_in,
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fd_out,
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off_out,
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len,
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flags);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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int uv__statx(int dirfd,
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const char* path,
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int flags,
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unsigned int mask,
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struct uv__statx* statxbuf) {
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/* __NR_statx make Android box killed by SIGSYS.
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* That looks like a seccomp2 sandbox filter rejecting the system call.
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*/
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#if defined(__NR_statx) && !defined(__ANDROID__)
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return syscall(__NR_statx, dirfd, path, flags, mask, statxbuf);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags) {
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#if defined(__NR_getrandom)
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return syscall(__NR_getrandom, buf, buflen, flags);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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