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Add fchown(2).

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This commit is contained in:
Jonas 'Sortie' Termansen 2012-10-24 19:52:28 +02:00
parent cb4569c615
commit c1280bedb0
5 changed files with 48 additions and 3 deletions
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1
libc/Makefile
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@ -142,6 +142,7 @@ faccessat.o \
fchdir.o \
fchmod.o \
fchownat.o \
fchown.o \
fcloseall.o \
fcntl.o \
fddir-sortix.o \

35
libc/fchown.cpp Normal file
View file

@ -0,0 +1,35 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2012.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
fchown.cpp
Changes the owner and group of a file.
*******************************************************************************/
#include <sys/types.h>
#include <sys/syscall.h>
#include <unistd.h>
DEFN_SYSCALL3(int, sys_fchown, SYSCALL_FCHOWN, int, uid_t, gid_t);
extern "C" int fchown(int fd, uid_t owner, gid_t group)
{
return sys_fchown(fd, owner, group);
}

2
libc/include/unistd.h
View file

@ -92,7 +92,6 @@ size_t confstr(int, char*, size_t);
char* crypt(const char*, const char*);
char* ctermid(char*);
void encrypt(char [64], int);
int fchown(int, uid_t, gid_t);
int fdatasync(int);
int fexecve(int, char* const [], char* const []);
long fpathconf(int, int);
@ -160,6 +159,7 @@ int execvp(const char*, char* const []);
pid_t fork(void);
int faccessat(int, const char*, int, int);
int fchdir(int);
int fchown(int, uid_t, gid_t);
int fchownat(int, const char*, uid_t, gid_t, int);
int ftruncate(int, off_t);
char* getcwd(char*, size_t);

3
sortix/include/sortix/syscallnum.h
View file

@ -88,6 +88,7 @@
#define SYSCALL_FCHDIR 64
#define SYSCALL_TRUNCATEAT 65
#define SYSCALL_FCHOWNAT 66
#define SYSCALL_MAX_NUM 67 /* index of highest constant + 1 */
#define SYSCALL_FCHOWN 67
#define SYSCALL_MAX_NUM 68 /* index of highest constant + 1 */
#endif

10
sortix/io.cpp
View file

@ -351,7 +351,14 @@ static int sys_chdir(const char* path)
return 0;
}
// TODO: fchown(2)
static int sys_fchown(int fd, uid_t owner, gid_t group)
{
Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
if ( !desc )
return -1;
ioctx_t ctx; SetupUserIOCtx(&ctx);
return desc->chown(&ctx, owner, group);
}
static int sys_fchownat(int dirfd, const char* path, uid_t owner, gid_t group, int flags)
{
@ -472,6 +479,7 @@ void Init()
Syscall::Register(SYSCALL_FACCESSAT, (void*) sys_faccessat);
Syscall::Register(SYSCALL_FCHDIR, (void*) sys_fchdir);
Syscall::Register(SYSCALL_FCHOWNAT, (void*) sys_fchownat);
Syscall::Register(SYSCALL_FCHOWN, (void*) sys_fchown);
Syscall::Register(SYSCALL_FCNTL, (void*) sys_fcntl);
Syscall::Register(SYSCALL_FSTATAT, (void*) sys_fstatat);
Syscall::Register(SYSCALL_FSTAT, (void*) sys_fstat);