1/* mdb_copy.c - memory-mapped database backup tool */
2/*
3 * Copyright 2012-2018 Howard Chu, Symas Corp.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted only as authorized by the OpenLDAP
8 * Public License.
9 *
10 * A copy of this license is available in the file LICENSE in the
11 * top-level directory of the distribution or, alternatively, at
12 * <http://www.OpenLDAP.org/license.html>.
13 */
14#ifdef _WIN32
15#include <windows.h>
16#define MDB_STDOUT GetStdHandle(STD_OUTPUT_HANDLE)
17#else
18#define MDB_STDOUT 1
19#endif
20#include <stdio.h>
21#include <stdlib.h>
22#include <signal.h>
23#include "lmdb.h"
24
25static void
26sighandle(int sig)
27{
28}
29
30int main(int argc,char * argv[])
31{
32 int rc;
33 MDB_env *env;
34 const char *progname = argv[0], *act;
35 unsigned flags = MDB_RDONLY;
36 unsigned cpflags = 0;
37
38 for (; argc > 1 && argv[1][0] == '-'; argc--, argv++) {
39 if (argv[1][1] == 'n' && argv[1][2] == '\0')
40 flags |= MDB_NOSUBDIR;
41 else if (argv[1][1] == 'v' && argv[1][2] == '\0')
42 flags |= MDB_PREVSNAPSHOT;
43 else if (argv[1][1] == 'c' && argv[1][2] == '\0')
44 cpflags |= MDB_CP_COMPACT;
45 else if (argv[1][1] == 'V' && argv[1][2] == '\0') {
46 printf("%s\n", MDB_VERSION_STRING);
47 exit(0);
48 } else
49 argc = 0;
50 }
51
52 if (argc<2 || argc>3) {
53 fprintf(stderr, "usage: %s [-V] [-c] [-n] [-v] srcpath [dstpath]\n", progname);
54 exit(EXIT_FAILURE);
55 }
56
57#ifdef SIGPIPE
58 signal(SIGPIPE, sighandle);
59#endif
60#ifdef SIGHUP
61 signal(SIGHUP, sighandle);
62#endif
63 signal(SIGINT, sighandle);
64 signal(SIGTERM, sighandle);
65
66 act = "opening environment";
67 rc = mdb_env_create(&env);
68 if (rc == MDB_SUCCESS) {
69 rc = mdb_env_open(env, argv[1], flags, 0600);
70 }
71 if (rc == MDB_SUCCESS) {
72 act = "copying";
73 if (argc == 2)
74 rc = mdb_env_copyfd2(env, MDB_STDOUT, cpflags);
75 else
76 rc = mdb_env_copy2(env, argv[2], cpflags);
77 }
78 if (rc)
79 fprintf(stderr, "%s: %s failed, error %d (%s)\n",
80 progname, act, rc, mdb_strerror(rc));
81 mdb_env_close(env);
82
83 return rc ? EXIT_FAILURE : EXIT_SUCCESS;
84}
85