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/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 Red Hat Inc.
*
* 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.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/stat.h>
#include "daemon.h"
#include "actions.h"
char **
do_ls (const char *path)
{
char **r = NULL;
int size = 0, alloc = 0;
DIR *dir;
struct dirent *d;
CHROOT_IN;
dir = opendir (path);
CHROOT_OUT;
if (!dir) {
reply_with_perror ("opendir: %s", path);
return NULL;
}
while ((d = readdir (dir)) != NULL) {
if (STREQ (d->d_name, ".") || STREQ (d->d_name, ".."))
continue;
if (add_string (&r, &size, &alloc, d->d_name) == -1) {
closedir (dir);
return NULL;
}
}
if (add_string (&r, &size, &alloc, NULL) == -1) {
closedir (dir);
return NULL;
}
if (closedir (dir) == -1) {
reply_with_perror ("closedir: %s", path);
free_strings (r);
return NULL;
}
sort_strings (r, size-1);
return r;
}
/* Because we can't chroot and run the ls command (since 'ls' won't
* necessarily exist in the chroot), this command can be used to escape
* from the sysroot (eg. 'll /..'). This command is not meant for
* serious use anyway, just for quick interactive sessions.
*/
char *
do_ll (const char *path)
{
int r;
char *out, *err;
char *spath;
spath = sysroot_path (path);
if (!spath) {
reply_with_perror ("malloc");
return NULL;
}
r = command (&out, &err, "ls", "-la", spath, NULL);
free (spath);
if (r == -1) {
reply_with_error ("%s", err);
free (out);
free (err);
return NULL;
}
free (err);
return out; /* caller frees */
}
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