diff options
Diffstat (limited to 'src/kernel/syscalls.c')
| -rw-r--r-- | src/kernel/syscalls.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/kernel/syscalls.c b/src/kernel/syscalls.c index bf17fd3..737484d 100644 --- a/src/kernel/syscalls.c +++ b/src/kernel/syscalls.c @@ -104,8 +104,10 @@ int _syscall_fd_mount(fd_t fd, const user_ptr path, int len) { struct virt_iter iter; struct vfs_mount *mount; char *path_buf; + int res; if (len > PATH_MAX) return -1; + if (fd < 0 || fd >= FD_MAX) return -1; // copy the path to the kernel path_buf = kmalloc(len); @@ -124,10 +126,19 @@ int _syscall_fd_mount(fd_t fd, const user_ptr path, int len) { mount->prev = process_current->mount; mount->prefix = path_buf; mount->prefix_len = len; + memcpy(&mount->fd, &process_current->fds[fd], sizeof(struct fd)); + + res = fdop_dispatch((struct fdop_args){ + .type = FDOP_MOUNT, + .fd = &process_current->fds[fd], + .mnt = {mount}, + }); + if (res < 0) goto fail; process_current->mount = mount; return 0; fail: kfree(path_buf); + kfree(mount); return -1; } |