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s3:smbd: add file_set_sparse() function

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this is based on a patch for 3.3 from metze
This commit is contained in:
Björn Jacke 2010-12-14 10:03:07 +01:00 committed by Jeremy Allison
parent 9634d03339
commit 5c27dd67c8
2 changed files with 52 additions and 0 deletions
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3
source3/include/proto.h
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@ -4620,6 +4620,9 @@ int dos_attributes_to_stat_dos_flags(uint32_t dosmode);
uint32 dos_mode(connection_struct *conn, struct smb_filename *smb_fname);
int file_set_dosmode(connection_struct *conn, struct smb_filename *smb_fname,
uint32 dosmode, const char *parent_dir, bool newfile);
NTSTATUS file_set_sparse(connection_struct *conn,
struct smb_filename *smb_fname,
bool sparse);
int file_ntimes(connection_struct *conn, const struct smb_filename *smb_fname,
struct smb_file_time *ft);
bool set_sticky_write_time_path(struct file_id fileid, struct timespec mtime);

49
source3/smbd/dosmode.c
View File

@ -846,6 +846,55 @@ int file_set_dosmode(connection_struct *conn, struct smb_filename *smb_fname,
return( ret );
}
NTSTATUS file_set_sparse(connection_struct *conn,
struct smb_filename *smb_fname,
bool sparse)
{
SMB_STRUCT_STAT st;
uint32_t old_dosmode;
uint32_t new_dosmode;
DEBUG(10,("file_set_sparse: setting sparse bit %u on file %s\n",
sparse, smb_fname_str_dbg(smb_fname)));
if (!lp_store_dos_attributes(SNUM(conn))) {
return NT_STATUS_INVALID_DEVICE_REQUEST;
}
SET_STAT_INVALID(st);
if (SMB_VFS_STAT(conn, smb_fname)) {
return map_nt_error_from_unix(errno);
}
old_dosmode = dos_mode(conn, smb_fname);
if (sparse && !(old_dosmode & FILE_ATTRIBUTE_SPARSE)) {
new_dosmode = old_dosmode | FILE_ATTRIBUTE_SPARSE;
} else if (!sparse && (old_dosmode & FILE_ATTRIBUTE_SPARSE)) {
new_dosmode = old_dosmode & ~FILE_ATTRIBUTE_SPARSE;
} else {
return NT_STATUS_OK;
}
/* Store the DOS attributes in an EA. */
if (!set_ea_dos_attribute(conn, smb_fname,
new_dosmode)) {
if (errno == 0) {
errno = EIO;
}
return map_nt_error_from_unix(errno);
}
notify_fname(conn, NOTIFY_ACTION_MODIFIED,
FILE_NOTIFY_CHANGE_ATTRIBUTES,
smb_fname->base_name);
return NT_STATUS_OK;
}
/*******************************************************************
Wrapper around the VFS ntimes that possibly allows DOS semantics rather
than POSIX.