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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "daemon.h"
#include "actions.h"
char **
do_strings_e (const char *encoding, const char *path)
{
int fd, flags, r;
char *out, *err;
char **lines;
if (strlen (encoding) != 1 ||
strchr ("sSblBL", encoding[0]) == NULL) {
reply_with_error ("%s: invalid encoding", encoding);
return NULL;
}
CHROOT_IN;
fd = open (path, O_RDONLY|O_CLOEXEC);
CHROOT_OUT;
if (fd == -1) {
reply_with_perror ("%s", path);
return NULL;
}
flags = COMMAND_FLAG_CHROOT_COPY_FILE_TO_STDIN | fd;
r = commandf (&out, &err, flags, "strings", "-e", encoding, NULL);
if (r == -1) {
reply_with_error ("%s: %s", path, err);
free (err);
free (out);
return NULL;
}
free (err);
/* Now convert the output to a list of lines. */
lines = split_lines (out);
free (out);
if (lines == NULL)
return NULL;
return lines; /* Caller frees. */
}
char **
do_strings (const char *path)
{
return do_strings_e ("s", path);
}
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