diff options
Diffstat (limited to 'source3/smbd/vfs.c')
| -rw-r--r-- | source3/smbd/vfs.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c index 753db4cece..2f981c743f 100644 --- a/source3/smbd/vfs.c +++ b/source3/smbd/vfs.c @@ -71,7 +71,9 @@ static struct vfs_ops default_vfs = { vfswrap_open, vfswrap_close, vfswrap_read, + vfswrap_pread, vfswrap_write, + vfswrap_pwrite, vfswrap_lseek, vfswrap_sendfile, vfswrap_rename, @@ -429,6 +431,28 @@ ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count) return (ssize_t)total; } +ssize_t vfs_pread_data(files_struct *fsp, char *buf, + size_t byte_count, SMB_OFF_T offset) +{ + size_t total=0; + + while (total < byte_count) + { + ssize_t ret = SMB_VFS_PREAD(fsp, fsp->fd, buf + total, + byte_count - total, offset + total); + + if (ret == 0) return total; + if (ret == -1) { + if (errno == EINTR) + continue; + else + return -1; + } + total += ret; + } + return (ssize_t)total; +} + /**************************************************************************** Write data to a fd on the vfs. ****************************************************************************/ @@ -451,6 +475,25 @@ ssize_t vfs_write_data(files_struct *fsp,const char *buffer,size_t N) return (ssize_t)total; } +ssize_t vfs_pwrite_data(files_struct *fsp,const char *buffer, + size_t N, SMB_OFF_T offset) +{ + size_t total=0; + ssize_t ret; + + while (total < N) { + ret = SMB_VFS_PWRITE(fsp, fsp->fd, buffer + total, + N - total, offset + total); + + if (ret == -1) + return -1; + if (ret == 0) + return total; + + total += ret; + } + return (ssize_t)total; +} /**************************************************************************** An allocate file space call using the vfs interface. Allocates space for a file from a filedescriptor. |