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vfs_fruit: split and simplify fruit_ftruncate

Browse Source 
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11467

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Ralph Boehme 2015-08-12 07:34:53 +02:00 committed by Karolin Seeger
parent 6c109257df
commit 05e80175fb
1 changed files with 60 additions and 30 deletions
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90
source3/modules/vfs_fruit.c
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@ -3163,6 +3163,62 @@ static int fruit_fallocate(struct vfs_handle_struct *handle,
return -1;
}
static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset,
struct adouble *ad)
{
/*
* As this request hasn't been seen in the wild,
* the only sensible use I can imagine is the client
* truncating the stream to 0 bytes size.
* We simply remove the metadata on such a request.
*/
if (offset != 0) {
DBG_WARNING("ftruncate %s to %jd",
fsp_str_dbg(fsp), (intmax_t)offset);
return -1;
}
return SMB_VFS_FREMOVEXATTR(fsp, AFPRESOURCE_EA_NETATALK);
}
static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset,
struct adouble *ad)
{
int rc;
struct fruit_config_data *config;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
return SMB_VFS_FREMOVEXATTR(fsp,
AFPRESOURCE_EA_NETATALK);
}
rc = SMB_VFS_NEXT_FTRUNCATE(
handle, fsp,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (rc != 0) {
return -1;
}
if (config->rsrc == FRUIT_RSRC_ADFILE) {
ad_setentrylen(ad, ADEID_RFORK, offset);
rc = ad_write(ad, NULL);
if (rc != 0) {
return -1;
}
DEBUG(10, ("fruit_ftruncate_rsrc file %s offset %jd\n",
fsp_str_dbg(fsp), (intmax_t)offset));
}
return 0;
}
static int fruit_ftruncate(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
@ -3170,7 +3226,6 @@ static int fruit_ftruncate(struct vfs_handle_struct *handle,
int rc = 0;
struct adouble *ad =
(struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
struct fruit_config_data *config;
DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
fsp_str_dbg(fsp), (double)offset));
@ -3183,40 +3238,15 @@ static int fruit_ftruncate(struct vfs_handle_struct *handle,
return -1;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (ad->ad_type) {
case ADOUBLE_META:
/*
* As this request hasn't been seen in the wild,
* the only sensible use I can imagine is the client
* truncating the stream to 0 bytes size.
* We simply remove the metadata on such a request.
*/
if (offset == 0) {
rc = SMB_VFS_FREMOVEXATTR(fsp,
AFPRESOURCE_EA_NETATALK);
}
rc = fruit_ftruncate_meta(handle, fsp, offset, ad);
break;
case ADOUBLE_RSRC:
if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
rc = SMB_VFS_FREMOVEXATTR(fsp,
AFPRESOURCE_EA_NETATALK);
} else {
rc = SMB_VFS_NEXT_FTRUNCATE(
handle, fsp,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (rc != 0) {
return -1;
}
ad_setentrylen(ad, ADEID_RFORK, offset);
rc = ad_write(ad, NULL);
if (rc != 0) {
return -1;
}
}
rc = fruit_ftruncate_rsrc(handle, fsp, offset, ad);
break;
default:
return -1;
}