mirror of
https://github.com/isar/libmdbx.git
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83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/* mdb_copy.c - memory-mapped database backup tool */
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/*
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* Copyright 2012 Howard Chu, Symas Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#ifdef _WIN32
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#include <windows.h>
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#define MDB_STDOUT GetStdHandle(STD_OUTPUT_HANDLE)
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#else
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#define MDB_STDOUT 1
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include "lmdb.h"
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static void
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sighandle(int sig)
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{
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}
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int main(int argc,char * argv[])
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{
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int rc;
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MDB_env *env;
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const char *progname = argv[0], *act;
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unsigned flags = MDB_RDONLY;
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unsigned cpflags = 0;
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for (; argc > 1 && argv[1][0] == '-'; argc--, argv++) {
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if (argv[1][1] == 'n' && argv[1][2] == '\0')
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flags |= MDB_NOSUBDIR;
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else if (argv[1][1] == 'c' && argv[1][2] == '\0')
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cpflags |= MDB_CP_COMPACT;
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else if (argv[1][1] == 'V' && argv[1][2] == '\0') {
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printf("%s\n", MDB_VERSION_STRING);
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exit(0);
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} else
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argc = 0;
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}
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if (argc<2 || argc>3) {
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fprintf(stderr, "usage: %s [-V] [-c] [-n] srcpath [dstpath]\n", progname);
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exit(EXIT_FAILURE);
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}
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#ifdef SIGPIPE
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signal(SIGPIPE, sighandle);
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#endif
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#ifdef SIGHUP
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signal(SIGHUP, sighandle);
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#endif
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signal(SIGINT, sighandle);
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signal(SIGTERM, sighandle);
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act = "opening environment";
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rc = mdb_env_create(&env);
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if (rc == MDB_SUCCESS) {
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rc = mdb_env_open(env, argv[1], flags, 0640);
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}
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if (rc == MDB_SUCCESS) {
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act = "copying";
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if (argc == 2)
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rc = mdb_env_copyfd2(env, MDB_STDOUT, cpflags);
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else
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rc = mdb_env_copy2(env, argv[2], cpflags);
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}
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if (rc)
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fprintf(stderr, "%s: %s failed, error %d (%s)\n",
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progname, act, rc, mdb_strerror(rc));
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mdb_env_close(env);
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return rc ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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