parent
32f87f461d
commit
c9b3002e43
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@ -173,6 +173,7 @@ mkdir.o \
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mktemp.o \
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mktemp.o \
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on_exit.o \
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on_exit.o \
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open.o \
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open.o \
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openat.o \
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pipe.o \
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pipe.o \
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print.o \
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print.o \
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putc.o \
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putc.o \
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@ -17,8 +17,8 @@
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You should have received a copy of the GNU Lesser General Public License
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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dup.cpp
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open.cpp
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Duplicates a file descriptor.
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Open a file.
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*******************************************************************************/
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*******************************************************************************/
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@ -26,11 +26,11 @@
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#include <fcntl.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdarg.h>
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DEFN_SYSCALL3(int, SysOpen, SYSCALL_OPEN, const char*, int, mode_t);
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DEFN_SYSCALL3(int, sys_open, SYSCALL_OPEN, const char*, int, mode_t);
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extern "C" int open(const char* path, int flags, ...)
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extern "C" int open(const char* path, int flags, ...)
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{
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{
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int mode = 0;
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mode_t mode = 0;
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if ( flags & O_CREAT )
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if ( flags & O_CREAT )
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{
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{
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va_list ap;
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va_list ap;
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@ -38,5 +38,5 @@ extern "C" int open(const char* path, int flags, ...)
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mode = va_arg(ap, mode_t);
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mode = va_arg(ap, mode_t);
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va_end(ap);
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va_end(ap);
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}
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}
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return SysOpen(path, flags, mode);
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return sys_open(path, flags, mode);
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}
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}
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@ -0,0 +1,42 @@
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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openat.cpp
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Open a file relative to directory.
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*******************************************************************************/
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#include <sys/syscall.h>
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#include <fcntl.h>
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#include <stdarg.h>
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DEFN_SYSCALL4(int, sys_openat, SYSCALL_OPENAT, int, const char*, int, mode_t);
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extern "C" int openat(int dirfd, const char* path, int flags, ...)
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{
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mode_t mode = 0;
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if ( flags & O_CREAT )
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{
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va_list ap;
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va_start(ap, flags);
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mode = va_arg(ap, mode_t);
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va_end(ap);
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}
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return sys_openat(dirfd, path, flags, mode);
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}
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@ -1,6 +1,6 @@
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/******************************************************************************
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/*******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of Sortix.
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This file is part of Sortix.
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@ -14,13 +14,13 @@
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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details.
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You should have received a copy of the GNU General Public License along
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You should have received a copy of the GNU General Public License along with
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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filesystem.cpp
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filesystem.cpp
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Allows access to stored sequences of bytes in an orderly fashion.
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Allows access to stored sequences of bytes in an orderly fashion.
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******************************************************************************/
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*******************************************************************************/
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#include <sortix/kernel/platform.h>
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#include <sortix/kernel/platform.h>
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#include <sortix/kernel/string.h>
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#include <sortix/kernel/string.h>
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@ -86,6 +86,22 @@ namespace Sortix
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return fd;
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return fd;
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}
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}
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int SysOpenAt(int dirfd, const char* pathname, int flags, mode_t mode)
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{
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if ( pathname[0] == '/' )
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return SysOpen(pathname, flags, mode);
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Process* process = CurrentProcess();
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Device* dir = process->descriptors.Get(dirfd);
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if ( !dir ) { errno = EBADF; return -1; }
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const char* path = process->descriptors.GetPath(dirfd);
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char* fullpath = String::Combine(3, path, "/", pathname);
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if ( !fullpath )
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return -1;
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int ret = SysOpen(fullpath, flags, mode);
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delete[] fullpath;
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return ret;
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}
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int SysAccess(const char* pathname, int mode)
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int SysAccess(const char* pathname, int mode)
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{
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{
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int oflags = 0;
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int oflags = 0;
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@ -216,6 +232,7 @@ namespace Sortix
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void Init()
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void Init()
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{
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{
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Syscall::Register(SYSCALL_OPEN, (void*) SysOpen);
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Syscall::Register(SYSCALL_OPEN, (void*) SysOpen);
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Syscall::Register(SYSCALL_OPENAT, (void*) SysOpenAt);
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Syscall::Register(SYSCALL_UNLINK, (void*) SysUnlink);
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Syscall::Register(SYSCALL_UNLINK, (void*) SysUnlink);
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Syscall::Register(SYSCALL_MKDIR, (void*) SysMkDir);
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Syscall::Register(SYSCALL_MKDIR, (void*) SysMkDir);
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Syscall::Register(SYSCALL_RMDIR, (void*) SysRmDir);
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Syscall::Register(SYSCALL_RMDIR, (void*) SysRmDir);
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/*******************************************************************************
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/*******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011, 2012.
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of Sortix.
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This file is part of Sortix.
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@ -16,6 +16,7 @@
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You should have received a copy of the GNU General Public License along with
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You should have received a copy of the GNU General Public License along with
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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syscallnum.h
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syscallnum.h
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Stores numerical constants for each available system call on this kernel.
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Stores numerical constants for each available system call on this kernel.
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#define SYSCALL_TFORK 51
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#define SYSCALL_TFORK 51
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#define SYSCALL_TCGETWINSIZE 52
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#define SYSCALL_TCGETWINSIZE 52
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#define SYSCALL_RAISE 53
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#define SYSCALL_RAISE 53
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#define SYSCALL_MAX_NUM 54 /* index of highest constant + 1 */
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#define SYSCALL_OPENAT 54
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#define SYSCALL_MAX_NUM 55 /* index of highest constant + 1 */
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#endif
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#endif
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