96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/***
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This file was originally part of systemd.
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Copyright 2010 Lennart Poettering
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Copyright 2016 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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/* Missing glibc definitions to access certain kernel APIs */
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#if !HAVE_DECL_RENAMEAT2
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# ifndef __NR_renameat2
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# if defined __x86_64__
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# define __NR_renameat2 316
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# elif defined __arm__
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# define __NR_renameat2 382
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# elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# define __NR_renameat2 4351
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# endif
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# if _MIPS_SIM == _MIPS_SIM_NABI32
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# define __NR_renameat2 6315
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# endif
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# if _MIPS_SIM == _MIPS_SIM_ABI64
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# define __NR_renameat2 5311
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# endif
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# elif defined __i386__
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# define __NR_renameat2 353
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# else
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# warning "__NR_renameat2 unknown for your architecture"
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# endif
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# endif
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static inline int renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
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# ifdef __NR_renameat2
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return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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#endif
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/* Copied from systemd git:
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commit 6bda23dd6aaba50cf8e3e6024248cf736cc443ca
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Author: Yu Watanabe <watanabe.yu+github@gmail.com>
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AuthorDate: Thu Jul 27 20:22:54 2017 +0900
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Commit: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
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CommitDate: Thu Jul 27 07:22:54 2017 -0400
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*/
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#if !HAVE_DECL_COPY_FILE_RANGE
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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 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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# else
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# warning "__NR_copy_file_range not defined for your architecture"
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# endif
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# endif
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static inline ssize_t copy_file_range(int fd_in, loff_t *off_in,
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int fd_out, loff_t *off_out,
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size_t len,
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unsigned int flags) {
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# ifdef __NR_copy_file_range
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return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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#endif
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