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/*
Unix SMB/CIFS implementation.
Copyright (C) Andrew Tridgell 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
directory listing functions for posix backend
*/
#include "includes.h"
#include "vfs_posix.h"
/*
a special directory listing case where the pattern has no wildcard. We can just do a single stat()
thus avoiding the more expensive directory scan
*/
static NTSTATUS pvfs_list_no_wildcard(struct pvfs_state *pvfs, struct pvfs_filename *name,
const char *pattern, struct pvfs_dir *dir)
{
if (!name->exists) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
dir->count = 0;
dir->unix_path = talloc_strdup(dir, name->full_name);
if (!dir->unix_path) {
return NT_STATUS_NO_MEMORY;
}
dir->names = talloc_array_p(dir, const char *, 1);
if (!dir->names) {
return NT_STATUS_NO_MEMORY;
}
dir->names[0] = talloc_strdup(dir, pattern);
if (!dir->names[0]) {
return NT_STATUS_NO_MEMORY;
}
dir->count = 1;
return NT_STATUS_OK;
}
/*
read a directory and find all matching file names, returning them in
the structure *dir. The returned names are relative to the directory
if the pattern matches no files then we return NT_STATUS_OK, with dir->count = 0
*/
NTSTATUS pvfs_list(struct pvfs_state *pvfs, struct pvfs_filename *name, struct pvfs_dir *dir)
{
DIR *odir;
struct dirent *dent;
uint_t allocated = 0;
char *pattern;
/* split the unix path into a directory + pattern */
pattern = strrchr(name->full_name, '/');
if (!pattern) {
/* this should not happen, as pvfs_unix_path is supposed to
return an absolute path */
return NT_STATUS_UNSUCCESSFUL;
}
*pattern++ = 0;
if (!name->has_wildcard) {
return pvfs_list_no_wildcard(pvfs, name, pattern, dir);
}
dir->names = NULL;
dir->count = 0;
dir->unix_path = talloc_strdup(dir, name->full_name);
if (!dir->unix_path) {
return NT_STATUS_NO_MEMORY;
}
odir = opendir(name->full_name);
if (!odir) {
return pvfs_map_errno(pvfs, errno);
}
while ((dent = readdir(odir))) {
uint_t i = dir->count;
const char *dname = dent->d_name;
char *short_name;
short_name = pvfs_short_name_component(pvfs, dname);
/* check it matches the wildcard pattern */
if (ms_fnmatch(pattern, dname,
pvfs->tcon->smb_conn->negotiate.protocol) != 0 &&
ms_fnmatch(pattern, short_name,
pvfs->tcon->smb_conn->negotiate.protocol) != 0) {
talloc_free(short_name);
continue;
}
talloc_free(short_name);
if (dir->count >= allocated) {
allocated = (allocated + 100) * 1.2;
dir->names = talloc_realloc_p(dir, dir->names, const char *, allocated);
if (!dir->names) {
closedir(odir);
return NT_STATUS_NO_MEMORY;
}
}
dir->names[i] = talloc_strdup(dir, dname);
if (!dir->names[i]) {
closedir(odir);
return NT_STATUS_NO_MEMORY;
}
dir->count++;
}
closedir(odir);
return NT_STATUS_OK;
}
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