mirror of
https://github.com/libguestfs/libguestfs.git
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>From 'available icat' to 'available sleuthkit'. Signed-off-by: Matteo Cafasso <noxdafox@gmail.com>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2016 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <string.h>
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#include <unistd.h>
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#include "guestfs_protocol.h"
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#include "daemon.h"
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#include "actions.h"
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#include "optgroups.h"
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static int file_out (const char *cmd);
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GUESTFSD_EXT_CMD(str_sleuthkit_probe, icat);
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int
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optgroup_sleuthkit_available (void)
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{
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return prog_exists (str_sleuthkit_probe);
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}
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int
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do_icat (const mountable_t *mountable, int64_t inode)
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{
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CLEANUP_FREE char *cmd = NULL;
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/* Inode must be greater than 0 */
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if (inode < 0) {
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reply_with_error ("inode must be >= 0");
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return -1;
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}
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/* Construct the command. */
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if (asprintf (&cmd, "icat -r %s %" PRIi64, mountable->device, inode) == -1) {
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reply_with_perror ("asprintf");
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return -1;
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}
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return file_out (cmd);
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}
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static int
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file_out (const char *cmd)
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{
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int r;
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FILE *fp;
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CLEANUP_FREE char *buffer = NULL;
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if (verbose)
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fprintf (stderr, "%s\n", cmd);
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buffer = malloc (GUESTFS_MAX_CHUNK_SIZE);
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if (buffer == NULL) {
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reply_with_perror ("malloc");
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return -1;
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}
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fp = popen (cmd, "r");
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if (fp == NULL) {
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reply_with_perror ("%s", cmd);
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return -1;
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}
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/* Now we must send the reply message, before the file contents. After
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* this there is no opportunity in the protocol to send any error
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* message back. Instead we can only cancel the transfer.
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*/
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reply (NULL, NULL);
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while ((r = fread (buffer, 1, sizeof buffer, fp)) > 0) {
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if (send_file_write (buffer, r) < 0) {
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pclose (fp);
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return -1;
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}
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}
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if (ferror (fp)) {
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fprintf (stderr, "fread: %m");
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send_file_end (1); /* Cancel. */
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pclose (fp);
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return -1;
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}
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if (pclose (fp) != 0) {
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fprintf (stderr, "pclose: %m");
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send_file_end (1); /* Cancel. */
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return -1;
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}
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if (send_file_end (0)) /* Normal end of file. */
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return -1;
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return 0;
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}
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