58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* Copyright (c) 2012, 2016 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* 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 WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* unistd/fchownat.c
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* Changes the owner and group of a file.
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*/
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <fcntl.h>
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#include <unistd.h>
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#if !defined(__i386__)
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DEFN_SYSCALL5(int, sys_fchownat, SYSCALL_FCHOWNAT, int, const char*, uid_t, gid_t, int);
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int fchownat(int dirfd, const char* path, uid_t owner, gid_t group, int flags)
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{
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return sys_fchownat(dirfd, path, owner, group, flags);
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}
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#else
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// TODO: The i386 system call ABI doesn't have enough registers to do this with
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// 64-bit uid_t and gid_t.
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struct fchownat_request /* duplicated in kernel/io.cpp */
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{
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int dirfd;
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const char* path;
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uid_t owner;
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gid_t group;
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int flags;
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};
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DEFN_SYSCALL1(int, sys_fchownat_wrapper, SYSCALL_FCHOWNAT, const struct fchownat_request*);
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int fchownat(int dirfd, const char* path, uid_t owner, gid_t group, int flags)
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{
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struct fchownat_request request = { dirfd, path, owner, group, flags };
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return sys_fchownat_wrapper(&request);
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}
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#endif
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