/*-
 * Copyright (c) 2005 Eirik A. Nygaard.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <string.h>
#include <err.h>
#include <unistd.h>
#include <ctype.h>

#include <libpq-fe.h>

#include "psql.config.h"
#include "psqladm.h"

PGconn *
db_connect(const char *dbuser, const char *password, const char *dbname, const char *host)
{
	PGconn *conn;
	char conninfo[1024];

	snprintf(conninfo, sizeof(conninfo),
	         "dbname = '%s' host = '%s' user = '%s' password = '%s'",
	         dbname, host, dbuser, password);
	conn = PQconnectdb(conninfo);
	if (PQstatus(conn) != CONNECTION_OK)
		errx(1, "Could not connect to database(%d): %s", PQstatus(conn), PQerrorMessage(conn));
	return(conn);
}

int
verify_startwith(char *string, char *start)
{
	if (!strncmp(string, start, strlen(start))) {
		if (strlen(string) == strlen(start))
			return(1);
		if (string[strlen(start)] == '_')
			return(1);
	}
	return(0);
}

uid_t
get_cred(void)
{
	uid_t uid;
	if ((int)(uid = getuid()) == -1)
		err(1, "getuid");
	return(uid);
}

void
getpassword(const char *prompt1, const char *prompt2, char *pass, size_t len)
{
	char pass1[1024];
	char pass2[1024];
	char *passwd;

	passwd = getpass(prompt1);
	strlcpy(pass1, passwd, sizeof(pass1));
	passwd = getpass(prompt2);
	strlcpy(pass2, passwd, sizeof(pass2));
	if (strcmp(pass1, pass2) != 0) {
		errx(1, "Passwords doesn't match");
	}
	strlcpy(pass, pass1, len);
}

/*
 * names does not contain spaces
 * passwords does not contain spaces
 * XXX: Add better checks later.
 */
int
verifystr(char *str, int type)
{
	unsigned int i;

	for (i = 0; i < strlen(str); i++) {
		if (type == STR_TYPE_NAME) {
			if (isspace((int)str[i]))
				return(0);
		}
		if (type == STR_TYPE_PASSWORD) {
			if (isspace((int)str[i]))
				return(0);
		}
	}
	
	return(1); /* Bad Bad, default case should be non-verified */
}