source: trunk/server/source4/libcli/clideltree.c

/* 
   Unix SMB/CIFS implementation.
   useful function for deleting a whole directory tree
   Copyright (C) Andrew Tridgell 2003
   
   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 3 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, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/libcli.h"
#include "system/dir.h"

struct delete_state {
        struct smbcli_tree *tree;
        int total_deleted;
        bool failed;
};

/* 
   callback function for torture_deltree() 
*/
static void delete_fn(struct clilist_file_info *finfo, const char *name, void *state)
{
        struct delete_state *dstate = (struct delete_state *)state;
        char *s, *n;
        if (ISDOT(finfo->name) || ISDOTDOT(finfo->name)) {
                return;
        }

        n = strdup(name);
        n[strlen(n)-1] = 0;
        if (asprintf(&s, "%s%s", n, finfo->name) < 0) {
                free(n);
                return;
        }

        if (finfo->attrib & FILE_ATTRIBUTE_READONLY) {
                if (NT_STATUS_IS_ERR(smbcli_setatr(dstate->tree, s, 0, 0))) {
                        DEBUG(2,("Failed to remove READONLY on %s - %s\n",
                                 s, smbcli_errstr(dstate->tree)));                      
                }
        }

        if (finfo->attrib & FILE_ATTRIBUTE_DIRECTORY) {
                char *s2;
                if (asprintf(&s2, "%s\\*", s) < 0) {
                        free(s);
                        free(n);
                        return;
                }
                smbcli_unlink(dstate->tree, s2);
                smbcli_list(dstate->tree, s2, 
                         FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM, 
                         delete_fn, state);
                free(s2);
                if (NT_STATUS_IS_ERR(smbcli_rmdir(dstate->tree, s))) {
                        DEBUG(2,("Failed to delete %s - %s\n", 
                                 s, smbcli_errstr(dstate->tree)));
                        dstate->failed = true;
                }
                dstate->total_deleted++;
        } else {
                if (NT_STATUS_IS_ERR(smbcli_unlink(dstate->tree, s))) {
                        DEBUG(2,("Failed to delete %s - %s\n", 
                                 s, smbcli_errstr(dstate->tree)));
                        dstate->failed = true;
                }
                dstate->total_deleted++;
        }
        free(s);
        free(n);
}

/* 
   recursively descend a tree deleting all files
   returns the number of files deleted, or -1 on error
*/
int smbcli_deltree(struct smbcli_tree *tree, const char *dname)
{
        char *mask;
        struct delete_state dstate;
        NTSTATUS status;

        dstate.tree = tree;
        dstate.total_deleted = 0;
        dstate.failed = false;

        /* it might be a file */
        status = smbcli_unlink(tree, dname);
        if (NT_STATUS_IS_OK(smbcli_unlink(tree, dname))) {
                return 1;
        }
        if (NT_STATUS_EQUAL(smbcli_nt_error(tree), NT_STATUS_OBJECT_NAME_NOT_FOUND) ||
            NT_STATUS_EQUAL(smbcli_nt_error(tree), NT_STATUS_OBJECT_PATH_NOT_FOUND) ||
            NT_STATUS_EQUAL(smbcli_nt_error(tree), NT_STATUS_NO_SUCH_FILE) ||
            NT_STATUS_EQUAL(smbcli_nt_error(tree), NT_STATUS_DOS(ERRDOS, ERRbadfile))) {
                return 0;
        }
        if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
                /* it could be read-only */
                status = smbcli_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL, 0);
                if (NT_STATUS_IS_OK(smbcli_unlink(tree, dname))) {
                        return 1;
                }
        }

        if (asprintf(&mask, "%s\\*", dname) < 0) {
                return -1;
        }
        smbcli_unlink(dstate.tree, mask);
        smbcli_list(dstate.tree, mask, 
                 FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM, 
                 delete_fn, &dstate);
        free(mask);

        status = smbcli_rmdir(dstate.tree, dname);
        if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
                /* it could be read-only */
                status = smbcli_setatr(dstate.tree, dname, FILE_ATTRIBUTE_NORMAL, 0);
                status = smbcli_rmdir(dstate.tree, dname);
        }
        if (NT_STATUS_IS_ERR(status)) {
                DEBUG(2,("Failed to delete %s - %s\n", 
                         dname, smbcli_errstr(dstate.tree)));
                return -1;
        }
        dstate.total_deleted++;

        if (dstate.failed) {
                return -1;
        }

        return dstate.total_deleted;
}