path: root/src/utilities/util_main.c

/*-
 * Copyright (c) 2014-2016 MongoDB, Inc.
 * Copyright (c) 2008-2014 WiredTiger, Inc.
 *	All rights reserved.
 *
 * See the file LICENSE for redistribution information.
 */

#include "util.h"

const char *home = ".";				/* Home directory */
const char *progname;				/* Program name */
						/* Global arguments */
const char *usage_prefix = "[-LRVv] [-C config] [-E secretkey] [-h home]";
bool verbose = false;				/* Verbose flag */

static const char *command;			/* Command name */

#define	REC_ERROR	"log=(recover=error)"
#define	REC_LOGOFF	"log=(enabled=false)"
#define	REC_RECOVER	"log=(recover=on)"

static void
usage(void)
{
	fprintf(stderr,
	    "WiredTiger Data Engine (version %d.%d)\n",
	    WIREDTIGER_VERSION_MAJOR, WIREDTIGER_VERSION_MINOR);
	fprintf(stderr,
	    "global options:\n"
	    "\t" "-C\t" "wiredtiger_open configuration\n"
	    "\t" "-h\t" "database directory\n"
	    "\t" "-L\t" "turn logging off for debug-mode\n"
	    "\t" "-R\t" "run recovery if configured\n"
	    "\t" "-V\t" "display library version and exit\n"
	    "\t" "-v\t" "verbose\n");
	fprintf(stderr,
	    "commands:\n"
	    "\t" "alter\t  alter an object\n"
	    "\t" "backup\t  database backup\n"
	    "\t" "compact\t  compact an object\n"
	    "\t" "copyright copyright information\n"
	    "\t" "create\t  create an object\n"
	    "\t" "drop\t  drop an object\n"
	    "\t" "dump\t  dump an object\n"
	    "\t" "list\t  list database objects\n"
	    "\t" "load\t  load an object\n"
	    "\t" "loadtext  load an object from a text file\n"
	    "\t" "printlog  display the database log\n"
	    "\t" "read\t  read values from an object\n"
	    "\t" "rebalance rebalance an object\n"
	    "\t" "rename\t  rename an object\n"
	    "\t" "salvage\t  salvage a file\n"
	    "\t" "stat\t  display statistics for an object\n"
	    "\t" "truncate  truncate an object, removing all content\n"
	    "\t" "upgrade\t  upgrade an object\n"
	    "\t" "verify\t  verify an object\n"
	    "\t" "write\t  write values to an object\n");
}

int
main(int argc, char *argv[])
{
	WT_CONNECTION *conn;
	WT_DECL_RET;
	WT_SESSION *session;
	size_t len;
	int ch, major_v, minor_v, tret, (*func)(WT_SESSION *, int, char *[]);
	bool logoff, recover;
	char *p, *secretkey;
	const char *cmd_config, *config, *p1, *p2, *p3, *rec_config;

	conn = NULL;
	p = NULL;

	/* Get the program name. */
	if ((progname = strrchr(argv[0], '/')) == NULL)
		progname = argv[0];
	else
		++progname;
	command = "";

	/* Check the version against the library build. */
	(void)wiredtiger_version(&major_v, & minor_v, NULL);
	if (major_v != WIREDTIGER_VERSION_MAJOR ||
	    minor_v != WIREDTIGER_VERSION_MINOR) {
		fprintf(stderr,
		    "%s: program build version %d.%d does not match "
		    "library build version %d.%d\n",
		    progname,
		    WIREDTIGER_VERSION_MAJOR, WIREDTIGER_VERSION_MINOR,
		    major_v,  minor_v);
		return (EXIT_FAILURE);
	}

	cmd_config = config = secretkey = NULL;
	/*
	 * We default to returning an error if recovery needs to be run.
	 * Generally we expect this to be run after a clean shutdown.
	 * The printlog command disables logging entirely.  If recovery is
	 * needed, the user can specify -R to run recovery.
	 */
	rec_config = REC_ERROR;
	logoff = recover = false;
	/* Check for standard options. */
	while ((ch = __wt_getopt(progname, argc, argv, "C:E:h:LRVv")) != EOF)
		switch (ch) {
		case 'C':			/* wiredtiger_open config */
			cmd_config = __wt_optarg;
			break;
		case 'E':			/* secret key */
			free(secretkey);	/* lint: set more than once */
			if ((secretkey = strdup(__wt_optarg)) == NULL) {
				(void)util_err(NULL, errno, NULL);
				goto err;
			}
			memset(__wt_optarg, 0, strlen(__wt_optarg));
			break;
		case 'h':			/* home directory */
			home = __wt_optarg;
			break;
		case 'L':			/* no logging */
			rec_config = REC_LOGOFF;
			logoff = true;
			break;
		case 'R':			/* recovery */
			rec_config = REC_RECOVER;
			recover = true;
			break;
		case 'V':			/* version */
			printf("%s\n", wiredtiger_version(NULL, NULL, NULL));
			goto done;
		case 'v':			/* verbose */
			verbose = true;
			break;
		case '?':
		default:
			usage();
			goto err;
		}
	if (logoff && recover) {
		fprintf(stderr, "Only one of -L and -R is allowed.\n");
		goto err;
	}
	argc -= __wt_optind;
	argv += __wt_optind;

	/* The next argument is the command name. */
	if (argc < 1) {
		usage();
		goto err;
	}
	command = argv[0];

	/* Reset getopt. */
	__wt_optreset = __wt_optind = 1;

	func = NULL;
	switch (command[0]) {
	case 'a':
		if (strcmp(command, "alter") == 0)
			func = util_alter;
		break;
	case 'b':
		if (strcmp(command, "backup") == 0)
			func = util_backup;
		break;
	case 'c':
		if (strcmp(command, "compact") == 0)
			func = util_compact;
		else if (strcmp(command, "copyright") == 0) {
			util_copyright();
			goto done;
		} else if (strcmp(command, "create") == 0) {
			func = util_create;
			config = "create";
		}
		break;
	case 'd':
		if (strcmp(command, "drop") == 0)
			func = util_drop;
		else if (strcmp(command, "dump") == 0)
			func = util_dump;
		break;
	case 'l':
		if (strcmp(command, "list") == 0)
			func = util_list;
		else if (strcmp(command, "load") == 0) {
			func = util_load;
			config = "create";
		} else if (strcmp(command, "loadtext") == 0) {
			func = util_loadtext;
			config = "create";
		}
		break;
	case 'p':
		if (strcmp(command, "printlog") == 0) {
			func = util_printlog;
			rec_config = REC_LOGOFF;
		}
		break;
	case 'r':
		if (strcmp(command, "read") == 0)
			func = util_read;
		else if (strcmp(command, "rebalance") == 0)
			func = util_rebalance;
		else if (strcmp(command, "rename") == 0)
			func = util_rename;
		break;
	case 's':
		if (strcmp(command, "salvage") == 0)
			func = util_salvage;
		else if (strcmp(command, "stat") == 0) {
			func = util_stat;
			config = "statistics=(all)";
		}
		break;
	case 't' :
		if (strcmp(command, "truncate") == 0)
			func = util_truncate;
		break;
	case 'u':
		if (strcmp(command, "upgrade") == 0)
			func = util_upgrade;
		break;
	case 'v':
		if (strcmp(command, "verify") == 0)
			func = util_verify;
		break;
	case 'w':
		if (strcmp(command, "write") == 0)
			func = util_write;
		break;
	default:
		break;
	}
	if (func == NULL) {
		usage();
		goto err;
	}

	/* Build the configuration string. */
	len = 10;					/* some slop */
	p1 = p2 = p3 = "";
	if (config != NULL)
		len += strlen(config);
	if (cmd_config != NULL)
		len += strlen(cmd_config);
	if (secretkey != NULL) {
		len += strlen(secretkey) + 30;
		p1 = ",encryption=(secretkey=";
		p2 = secretkey;
		p3 = ")";
	}
	len += strlen(rec_config);
	if ((p = malloc(len)) == NULL) {
		(void)util_err(NULL, errno, NULL);
		goto err;
	}
	if ((ret = __wt_snprintf(p, len, "%s,%s,%s%s%s%s",
	    config == NULL ? "" : config,
	    cmd_config == NULL ? "" : cmd_config,
	    rec_config, p1, p2, p3)) != 0) {
		(void)util_err(NULL, ret, NULL);
		goto err;
	}
	config = p;

	/* Open the database and a session. */
	if ((ret = wiredtiger_open(home,
	    verbose ? verbose_handler : NULL, config, &conn)) != 0) {
		(void)util_err(NULL, ret, NULL);
		goto err;
	}
	if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0) {
		(void)util_err(NULL, ret, NULL);
		goto err;
	}

	/* Call the function. */
	ret = func(session, argc, argv);

	if (0) {
err:		ret = 1;
	}
done:

	/* Close the database. */
	if (conn != NULL && (tret = conn->close(conn, NULL)) != 0 && ret == 0)
		ret = tret;

	free(p);
	free(secretkey);

	return (ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
}

/*
 * util_uri --
 *	Build a name.
 */
char *
util_uri(WT_SESSION *session, const char *s, const char *type)
{
	WT_DECL_RET;
	size_t len;
	char *name;

	if (WT_PREFIX_MATCH(s, "backup:") ||
	    WT_PREFIX_MATCH(s, "config:") ||
	    WT_PREFIX_MATCH(s, "statistics:")) {
		fprintf(stderr,
		    "%s: %s: unsupported object type: %s\n",
		    progname, command, s);
		return (NULL);
	}

	len = strlen(type) + strlen(s) + 2;
	if ((name = calloc(len, 1)) == NULL) {
		(void)util_err(session, errno, NULL);
		return (NULL);
	}

	/*
	 * If the string has a URI prefix, use it verbatim, otherwise prepend
	 * the default type for the operation.
	 */
	if (strchr(s, ':') != NULL)
		WT_ERR(__wt_snprintf(name, len, "%s", s));
	else
		WT_ERR(__wt_snprintf(name, len, "%s:%s", type, s));
	return (name);

err:	free(name);
	(void)util_err(session, ret, NULL);
	return (NULL);
}