confparser.c

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/*
 * confparser.c
 * (C) 2002 Ervin Hegedus
 * Released under GPL, see COPYING-2.0 for details.
 *
 * these routines are for parse the configuration file,
 * called by mysql_auth.conf
 * 
 */
#include <stdio.h>
#include <syslog.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>

#include "define.h"

int parse (struct my_params * parameters)
{
	FILE	*fp;
	char	line[MAXLENGTH];
	char	*var, *value;
	int	i = 0; // for looks the errors in config file

	/*
	 * open config file, and read options
	 * CONFIG_FILE path and name are defined in define.h
	 *
	 * my_params struct also defined in define.h
	 */
	if ((fp = fopen(CONFIG_FILE, "r"), fp == NULL)) {

		syslog (LOG_WARNING, "Can't open mysql_auth config file: %s!\n", CONFIG_FILE);
		return 1;
	}

	/*
	 * setting up default values to parameters
	 * there is not too many parameters, i didn't want
	 * to make some difficult algorithm...
	 */
	parameters -> var_host_name = malloc (strlen (DEF_HOST_NAME) + 1);
	strcpy (parameters -> var_host_name, DEF_HOST_NAME);
		
	parameters -> var_user_name = malloc (strlen (DEF_USER_NAME) + 1);
	strcpy (parameters -> var_user_name, DEF_USER_NAME);

	parameters -> var_user_password = malloc (strlen (DEF_USER_PASSWORD) + 1);
	strcpy (parameters -> var_user_password, DEF_USER_PASSWORD);

	parameters -> var_database_name = malloc (strlen (DEF_DATABASE_NAME) + 1);
	strcpy (parameters -> var_database_name, DEF_DATABASE_NAME);

	parameters -> var_mysqld_socket = malloc (strlen (DEF_MYSQLD_SOCKET) + 1);
	strcpy (parameters -> var_mysqld_socket, DEF_MYSQLD_SOCKET);

	parameters -> var_table_name = malloc (strlen (DEF_TABLE_NAME) + 1);
	strcpy (parameters -> var_table_name, DEF_TABLE_NAME);

	parameters -> var_user_column = malloc (strlen (DEF_USER_COLUMN) + 1);
	strcpy (parameters -> var_user_column, DEF_USER_COLUMN);

	parameters -> var_password_column = malloc (strlen (DEF_PASSWORD_COLUMN) + 1);
	strcpy (parameters -> var_password_column, DEF_PASSWORD_COLUMN);

	parameters -> var_encrypt_password_form = malloc (strlen (DEF_ENCRYPT_PASSWORD_FORM) + 1);
	strcpy (parameters -> var_encrypt_password_form, DEF_ENCRYPT_PASSWORD_FORM);

	/*
	 * reading and parsing lines
	 */
	while (fgets (line, MAXLENGTH, fp) != NULL) {

		i++;
		if (line[0] != '#' && line[0] != '\n') {

			var = strtok (line, " \t");
			if (var == NULL) {
				syslog (LOG_WARNING, "Error in mysql_auth config file at line %d.", i);
			}
			else {

				value = strtok (NULL, " \t\n");
				if (value == NULL) {

					syslog (LOG_WARNING, "Error in mysql_auth config file at line %d.", i);
				}
				else {

				    /*
				     * also not too many parameters, i know, this is
				     * not nice...
				     */
				    if (strcmp (var, VAR_HOST_NAME) == 0) {

					free (parameters -> var_host_name);
					parameters -> var_host_name = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_host_name, value);
				    }

				    if (strcmp (var, VAR_USER_NAME) == 0) {

					free (parameters -> var_user_name);
					parameters -> var_user_name = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_user_name, value);
				    }

				    if (strcmp (var, VAR_USER_PASSWORD) == 0) {

					free (parameters -> var_user_password);
					parameters -> var_user_password = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_user_password, value);
				    }

				    if (strcmp (var, VAR_DATABASE_NAME) == 0) {

					free (parameters -> var_database_name);
					parameters -> var_database_name = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_database_name, value);
				    }

				    if (strcmp (var, VAR_MYSQLD_SOCKET) == 0) {

					free (parameters -> var_mysqld_socket);
					parameters -> var_mysqld_socket = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_mysqld_socket, value);
				    }

				    if (strcmp (var, VAR_TABLE_NAME) == 0) {

					free (parameters -> var_table_name);
					parameters -> var_table_name = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_table_name, value);
				    }

				    if (strcmp (var, VAR_USER_COLUMN) == 0) {

					free (parameters -> var_user_column);
					parameters -> var_user_column = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_user_column, value);
				    }

				    if (strcmp (var, VAR_PASSWORD_COLUMN) == 0) {

					free (parameters -> var_password_column);
					parameters -> var_password_column = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_password_column, value);
				    }

				    if (strcmp (var, VAR_ENCRYPT_PASSWORD_FORM) == 0) {

					free (parameters -> var_encrypt_password_form);
					parameters -> var_encrypt_password_form = malloc (strlen (value) + 1);
                			strcpy (parameters -> var_encrypt_password_form, value);
				    }

				}
			}
		}
	}

	fclose (fp);

	return 0;
}