diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/include/sys/filedesc.h | 2 | ||||
| -rw-r--r-- | sys/include/sys/syscall.h | 1 | ||||
| -rw-r--r-- | sys/kern/kern_descrip.c | 13 | ||||
| -rw-r--r-- | sys/kern/kern_syscall.c | 1 |
4 files changed, 17 insertions, 0 deletions
diff --git a/sys/include/sys/filedesc.h b/sys/include/sys/filedesc.h index 5f7e4e3..4ce2db2 100644 --- a/sys/include/sys/filedesc.h +++ b/sys/include/sys/filedesc.h @@ -62,5 +62,7 @@ off_t fd_seek(int fildes, off_t offset, int whence); int fd_dup(int fd); struct filedesc *fd_get(unsigned int fdno); +scret_t sys_lseek(struct syscall_args *scargs); + #endif /* _KERNEL */ #endif /* !_SYS_FILEDESC_H_ */ diff --git a/sys/include/sys/syscall.h b/sys/include/sys/syscall.h index 0376bd2..37e2286 100644 --- a/sys/include/sys/syscall.h +++ b/sys/include/sys/syscall.h @@ -51,6 +51,7 @@ #define SYS_mmap 10 #define SYS_munmap 11 #define SYS_access 12 +#define SYS_lseek 13 #if defined(_KERNEL) /* Syscall return value and arg type */ diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 1737b53..a2dd667 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -331,3 +331,16 @@ fd_seek(int fildes, off_t offset, int whence) return 0; } + +/* + * Update file offset + * + * arg0: `filedes' + * arg1: `offset' + * arg2: `whence' + */ +scret_t +sys_lseek(struct syscall_args *scargs) +{ + return fd_seek(scargs->arg0, scargs->arg1, scargs->arg2); +} diff --git a/sys/kern/kern_syscall.c b/sys/kern/kern_syscall.c index fdcc73f..aaa5d04 100644 --- a/sys/kern/kern_syscall.c +++ b/sys/kern/kern_syscall.c @@ -49,6 +49,7 @@ scret_t(*g_sctab[])(struct syscall_args *) = { sys_mmap, /* SYS_mmap */ sys_munmap, /* SYS_munap */ sys_access, /* SYS_access */ + sys_lseek, /* SYS_lseek */ }; const size_t MAX_SYSCALLS = NELEM(g_sctab); |