Import BSDDB 4.7.25 (as of svn r89086)
This commit is contained in:
Zachary Ware
466
db_dump/db_dump.c
Normal file
466
db_dump/db_dump.c
Normal file
@@ -0,0 +1,466 @@
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/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996,2008 Oracle. All rights reserved.
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*
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* $Id: db_dump.c 63573 2008-05-23 21:43:21Z trent.nelson $
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*/
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#include "db_config.h"
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#include "db_int.h"
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#include "dbinc/db_page.h"
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#include "dbinc/db_am.h"
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#ifndef lint
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static const char copyright[] =
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"Copyright (c) 1996,2008 Oracle. All rights reserved.\n";
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#endif
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int db_init __P((DB_ENV *, char *, int, u_int32_t, int *));
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int dump_sub __P((DB_ENV *, DB *, char *, int, int));
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int main __P((int, char *[]));
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int show_subs __P((DB *));
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int usage __P((void));
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int version_check __P((void));
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const char *progname;
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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extern char *optarg;
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extern int optind;
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DB_ENV *dbenv;
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DB *dbp;
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u_int32_t cache;
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int ch;
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int exitval, keyflag, lflag, nflag, pflag, private;
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int ret, Rflag, rflag, resize;
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char *dopt, *home, *passwd, *subname;
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if ((progname = __db_rpath(argv[0])) == NULL)
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progname = argv[0];
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else
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++progname;
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if ((ret = version_check()) != 0)
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return (ret);
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dbenv = NULL;
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dbp = NULL;
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exitval = lflag = nflag = pflag = rflag = Rflag = 0;
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keyflag = 0;
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cache = MEGABYTE;
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private = 0;
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dopt = home = passwd = subname = NULL;
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while ((ch = getopt(argc, argv, "d:f:h:klNpP:rRs:V")) != EOF)
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switch (ch) {
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case 'd':
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dopt = optarg;
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break;
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case 'f':
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if (freopen(optarg, "w", stdout) == NULL) {
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fprintf(stderr, "%s: %s: reopen: %s\n",
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progname, optarg, strerror(errno));
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return (EXIT_FAILURE);
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}
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break;
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case 'h':
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home = optarg;
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break;
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case 'k':
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keyflag = 1;
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break;
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case 'l':
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lflag = 1;
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break;
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case 'N':
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nflag = 1;
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break;
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case 'P':
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passwd = strdup(optarg);
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memset(optarg, 0, strlen(optarg));
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if (passwd == NULL) {
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fprintf(stderr, "%s: strdup: %s\n",
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progname, strerror(errno));
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return (EXIT_FAILURE);
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}
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break;
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case 'p':
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pflag = 1;
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break;
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case 's':
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subname = optarg;
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break;
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case 'R':
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Rflag = 1;
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/* DB_AGGRESSIVE requires DB_SALVAGE */
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/* FALLTHROUGH */
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case 'r':
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rflag = 1;
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break;
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case 'V':
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printf("%s\n", db_version(NULL, NULL, NULL));
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return (EXIT_SUCCESS);
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case '?':
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default:
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return (usage());
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}
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argc -= optind;
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argv += optind;
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if (argc != 1)
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return (usage());
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if (dopt != NULL && pflag) {
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fprintf(stderr,
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"%s: the -d and -p options may not both be specified\n",
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progname);
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return (EXIT_FAILURE);
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}
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if (lflag && subname != NULL) {
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fprintf(stderr,
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"%s: the -l and -s options may not both be specified\n",
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progname);
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return (EXIT_FAILURE);
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}
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if (keyflag && rflag) {
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fprintf(stderr, "%s: %s",
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"the -k and -r or -R options may not both be specified\n",
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progname);
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return (EXIT_FAILURE);
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}
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if (subname != NULL && rflag) {
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fprintf(stderr, "%s: %s",
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"the -s and -r or R options may not both be specified\n",
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progname);
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return (EXIT_FAILURE);
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}
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/* Handle possible interruptions. */
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__db_util_siginit();
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/*
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* Create an environment object and initialize it for error
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* reporting.
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*/
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retry: if ((ret = db_env_create(&dbenv, 0)) != 0) {
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fprintf(stderr,
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"%s: db_env_create: %s\n", progname, db_strerror(ret));
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goto err;
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}
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dbenv->set_errfile(dbenv, stderr);
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dbenv->set_errpfx(dbenv, progname);
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if (nflag) {
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if ((ret = dbenv->set_flags(dbenv, DB_NOLOCKING, 1)) != 0) {
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dbenv->err(dbenv, ret, "set_flags: DB_NOLOCKING");
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goto err;
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}
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if ((ret = dbenv->set_flags(dbenv, DB_NOPANIC, 1)) != 0) {
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dbenv->err(dbenv, ret, "set_flags: DB_NOPANIC");
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goto err;
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}
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}
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if (passwd != NULL && (ret = dbenv->set_encrypt(dbenv,
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passwd, DB_ENCRYPT_AES)) != 0) {
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dbenv->err(dbenv, ret, "set_passwd");
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goto err;
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}
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/* Initialize the environment. */
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if (db_init(dbenv, home, rflag, cache, &private) != 0)
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goto err;
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/* Create the DB object and open the file. */
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if ((ret = db_create(&dbp, dbenv, 0)) != 0) {
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dbenv->err(dbenv, ret, "db_create");
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goto err;
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}
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/*
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* If we're salvaging, don't do an open; it might not be safe.
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* Dispatch now into the salvager.
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*/
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if (rflag) {
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/* The verify method is a destructor. */
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ret = dbp->verify(dbp, argv[0], NULL, stdout,
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DB_SALVAGE |
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(Rflag ? DB_AGGRESSIVE : 0) |
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(pflag ? DB_PRINTABLE : 0));
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dbp = NULL;
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if (ret != 0)
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goto err;
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goto done;
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}
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if ((ret = dbp->open(dbp, NULL,
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argv[0], subname, DB_UNKNOWN, DB_RDONLY, 0)) != 0) {
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dbp->err(dbp, ret, "open: %s", argv[0]);
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goto err;
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}
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if (private != 0) {
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if ((ret = __db_util_cache(dbp, &cache, &resize)) != 0)
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goto err;
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if (resize) {
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(void)dbp->close(dbp, 0);
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dbp = NULL;
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(void)dbenv->close(dbenv, 0);
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dbenv = NULL;
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goto retry;
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}
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}
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if (dopt != NULL) {
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if ((ret = __db_dumptree(dbp, NULL, dopt, NULL)) != 0) {
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dbp->err(dbp, ret, "__db_dumptree: %s", argv[0]);
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goto err;
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}
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} else if (lflag) {
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if (dbp->get_multiple(dbp)) {
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if (show_subs(dbp))
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goto err;
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} else {
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dbp->errx(dbp,
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"%s: does not contain multiple databases", argv[0]);
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goto err;
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}
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} else {
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if (subname == NULL && dbp->get_multiple(dbp)) {
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if (dump_sub(dbenv, dbp, argv[0], pflag, keyflag))
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goto err;
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} else
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if (dbp->dump(dbp, NULL,
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__db_pr_callback, stdout, pflag, keyflag))
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goto err;
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}
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if (0) {
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err: exitval = 1;
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}
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done: if (dbp != NULL && (ret = dbp->close(dbp, 0)) != 0) {
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exitval = 1;
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dbenv->err(dbenv, ret, "close");
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}
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if (dbenv != NULL && (ret = dbenv->close(dbenv, 0)) != 0) {
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exitval = 1;
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fprintf(stderr,
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"%s: dbenv->close: %s\n", progname, db_strerror(ret));
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}
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if (passwd != NULL)
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free(passwd);
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/* Resend any caught signal. */
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__db_util_sigresend();
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return (exitval == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
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}
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/*
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* db_init --
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* Initialize the environment.
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*/
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int
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db_init(dbenv, home, is_salvage, cache, is_privatep)
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DB_ENV *dbenv;
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char *home;
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int is_salvage;
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u_int32_t cache;
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int *is_privatep;
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{
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int ret;
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/*
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* Try and use the underlying environment when opening a database.
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* We wish to use the buffer pool so our information is as up-to-date
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* as possible, even if the mpool cache hasn't been flushed.
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*
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* If we are not doing a salvage, we want to join the environment;
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* if a locking system is present, this will let us use it and be
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* safe to run concurrently with other threads of control. (We never
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* need to use transactions explicitly, as we're read-only.) Note
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* that in CDB, too, this will configure our environment
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* appropriately, and our cursors will (correctly) do locking as CDB
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* read cursors.
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*
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* If we are doing a salvage, the verification code will protest
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* if we initialize transactions, logging, or locking; do an
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* explicit DB_INIT_MPOOL to try to join any existing environment
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* before we create our own.
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*/
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*is_privatep = 0;
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if ((ret = dbenv->open(dbenv, home,
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DB_USE_ENVIRON | (is_salvage ? DB_INIT_MPOOL : 0), 0)) == 0)
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return (0);
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if (ret == DB_VERSION_MISMATCH)
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goto err;
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/*
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* An environment is required because we may be trying to look at
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* databases in directories other than the current one. We could
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* avoid using an environment iff the -h option wasn't specified,
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* but that seems like more work than it's worth.
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*
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* No environment exists (or, at least no environment that includes
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* an mpool region exists). Create one, but make it private so that
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* no files are actually created.
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*/
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*is_privatep = 1;
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if ((ret = dbenv->set_cachesize(dbenv, 0, cache, 1)) == 0 &&
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(ret = dbenv->open(dbenv, home,
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DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_USE_ENVIRON, 0)) == 0)
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return (0);
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/* An environment is required. */
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err: dbenv->err(dbenv, ret, "DB_ENV->open");
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return (1);
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}
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/*
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* dump_sub --
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* Dump out the records for a DB containing subdatabases.
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*/
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int
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dump_sub(dbenv, parent_dbp, parent_name, pflag, keyflag)
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DB_ENV *dbenv;
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DB *parent_dbp;
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char *parent_name;
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int pflag, keyflag;
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{
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DB *dbp;
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DBC *dbcp;
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DBT key, data;
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int ret;
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char *subdb;
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/*
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* Get a cursor and step through the database, dumping out each
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* subdatabase.
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*/
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if ((ret = parent_dbp->cursor(parent_dbp, NULL, &dbcp, 0)) != 0) {
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dbenv->err(dbenv, ret, "DB->cursor");
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return (1);
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}
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memset(&key, 0, sizeof(key));
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memset(&data, 0, sizeof(data));
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while ((ret = dbcp->get(dbcp, &key, &data,
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DB_IGNORE_LEASE | DB_NEXT)) == 0) {
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/* Nul terminate the subdatabase name. */
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if ((subdb = malloc(key.size + 1)) == NULL) {
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dbenv->err(dbenv, ENOMEM, NULL);
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return (1);
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}
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memcpy(subdb, key.data, key.size);
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subdb[key.size] = '\0';
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/* Create the DB object and open the file. */
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if ((ret = db_create(&dbp, dbenv, 0)) != 0) {
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dbenv->err(dbenv, ret, "db_create");
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free(subdb);
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return (1);
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}
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if ((ret = dbp->open(dbp, NULL,
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parent_name, subdb, DB_UNKNOWN, DB_RDONLY, 0)) != 0)
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dbp->err(dbp, ret,
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"DB->open: %s:%s", parent_name, subdb);
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if (ret == 0 && dbp->dump(
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dbp, subdb, __db_pr_callback, stdout, pflag, keyflag))
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ret = 1;
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(void)dbp->close(dbp, 0);
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free(subdb);
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if (ret != 0)
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return (1);
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}
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if (ret != DB_NOTFOUND) {
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parent_dbp->err(parent_dbp, ret, "DBcursor->get");
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return (1);
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}
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if ((ret = dbcp->close(dbcp)) != 0) {
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parent_dbp->err(parent_dbp, ret, "DBcursor->close");
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return (1);
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}
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return (0);
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}
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/*
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* show_subs --
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* Display the subdatabases for a database.
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*/
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int
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show_subs(dbp)
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DB *dbp;
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{
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DBC *dbcp;
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DBT key, data;
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int ret;
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/*
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* Get a cursor and step through the database, printing out the key
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* of each key/data pair.
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*/
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if ((ret = dbp->cursor(dbp, NULL, &dbcp, 0)) != 0) {
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dbp->err(dbp, ret, "DB->cursor");
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return (1);
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}
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memset(&key, 0, sizeof(key));
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memset(&data, 0, sizeof(data));
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while ((ret = dbcp->get(dbcp, &key, &data,
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DB_IGNORE_LEASE | DB_NEXT)) == 0) {
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if ((ret = dbp->dbenv->prdbt(
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&key, 1, NULL, stdout, __db_pr_callback, 0)) != 0) {
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dbp->errx(dbp, NULL);
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return (1);
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}
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}
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if (ret != DB_NOTFOUND) {
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dbp->err(dbp, ret, "DBcursor->get");
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return (1);
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}
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if ((ret = dbcp->close(dbcp)) != 0) {
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dbp->err(dbp, ret, "DBcursor->close");
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return (1);
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}
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return (0);
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}
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/*
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* usage --
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* Display the usage message.
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*/
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int
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usage()
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{
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(void)fprintf(stderr, "usage: %s [-klNprRV]\n\t%s\n",
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progname,
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"[-d ahr] [-f output] [-h home] [-P password] [-s database] db_file");
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return (EXIT_FAILURE);
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}
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int
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version_check()
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{
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int v_major, v_minor, v_patch;
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/* Make sure we're loaded with the right version of the DB library. */
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(void)db_version(&v_major, &v_minor, &v_patch);
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if (v_major != DB_VERSION_MAJOR || v_minor != DB_VERSION_MINOR) {
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fprintf(stderr,
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"%s: version %d.%d doesn't match library version %d.%d\n",
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progname, DB_VERSION_MAJOR, DB_VERSION_MINOR,
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v_major, v_minor);
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return (EXIT_FAILURE);
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}
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return (0);
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||||
}
|
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Block a user