diff options
| -rw-r--r-- | arch/sandbox/cpu/os.c | 24 | ||||
| -rw-r--r-- | include/os.h | 17 |
2 files changed, 33 insertions, 8 deletions
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index f6d0e84..cb469e0 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -58,9 +58,29 @@ off_t os_lseek(int fd, off_t offset, int whence) return lseek(fd, offset, whence); } -int os_open(const char *pathname, int flags) +int os_open(const char *pathname, int os_flags) { - return open(pathname, flags); + int flags; + + switch (os_flags & OS_O_MASK) { + case OS_O_RDONLY: + default: + flags = O_RDONLY; + break; + + case OS_O_WRONLY: + flags = O_WRONLY; + break; + + case OS_O_RDWR: + flags = O_RDWR; + break; + } + + if (os_flags & OS_O_CREAT) + flags |= O_CREAT; + + return open(pathname, flags, 0777); } int os_close(int fd) diff --git a/include/os.h b/include/os.h index f74766d..6b7ee47 100644 --- a/include/os.h +++ b/include/os.h @@ -1,4 +1,9 @@ /* + * Operating System Interface + * + * This provides access to useful OS routines for the sandbox architecture. + * They are kept in a separate file so we can include system headers. + * * Copyright (c) 2011 The Chromium OS Authors. * See file CREDITS for list of people who contributed to this * project. @@ -19,12 +24,6 @@ * MA 02111-1307 USA */ -/* - * Operating System Interface - * - * This provides access to useful OS routines from the sandbox architecture - */ - #ifndef __OS_H__ #define __OS_H__ @@ -72,6 +71,12 @@ off_t os_lseek(int fd, off_t offset, int whence); */ int os_open(const char *pathname, int flags); +#define OS_O_RDONLY 0 +#define OS_O_WRONLY 1 +#define OS_O_RDWR 2 +#define OS_O_MASK 3 /* Mask for read/write flags */ +#define OS_O_CREAT 0100 + /** * Access to the OS close() system call * |