flags.c
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 /*
  * $Id$
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  *
  * Copyright (C) 2001-2003 Fhg Fokus
  *
  * This file is part of ser, a free SIP server.
  *
  * ser is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version
  *
  * For a license to use the ser software under conditions
  * other than those described here, or to purchase support for this
  * software, please contact iptel.org by e-mail at the following addresses:
  *    info@iptel.org
  *
  * ser is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License 
  * along with this program; if not, write to the Free Software 
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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  */
 
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 #include <limits.h>
 #include "sr_module.h"
 #include "dprint.h"
 #include "parser/msg_parser.h"
 #include "flags.h"
 #include "error.h"
 #include "stdlib.h"
 
 int setflag( struct sip_msg* msg, flag_t flag ) {
 	msg->flags |= 1 << flag;
 	return 1;
 }
 
 int resetflag( struct sip_msg* msg, flag_t flag ) {
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 	msg->flags &= ~ (1 << flag);
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 	return 1;
 }
 
 int isflagset( struct sip_msg* msg, flag_t flag ) {
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 	return (msg->flags & (1<<flag)) ? 1 : -1;
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 }
 
 int flag_in_range( flag_t flag ) {
 	if (flag > MAX_FLAG ) {
 		LOG(L_ERR, "ERROR: message flag %d too high; MAX=%d\n",
 			flag, MAX_FLAG );
 		return 0;
 	}
 	if (flag<=0) {
 		LOG(L_ERR, "ERROR: message flag (%d) must be in range %d..%d\n",
 			flag, 1, MAX_FLAG );
 		return 0;
 	}
 	return 1;
 }
 
 
 #ifdef _GET_AWAY
 
 /* wrapping functions for flag processing  */
 static int fixup_t_flag(void** param, int param_no)
 {
     unsigned int *code;
 	char *c;
 	int token;
 
 	DBG("DEBUG: fixing flag: %s\n", (char *) (*param));
 
 	if (param_no!=1) {
 		LOG(L_ERR, "ERROR: TM module: only parameter #1 for flags can be fixed\n");
 		return E_BUG;
 	};
 
 	if ( !(code = malloc( sizeof( unsigned int) )) ) return E_OUT_OF_MEM;
 
 	*code = 0;
 	c = *param;
 	while ( *c && (*c==' ' || *c=='\t')) c++; /* intial whitespaces */
 
 	token=1;
 	if (strcasecmp(c, "white")==0) *code=FL_WHITE;
 	else if (strcasecmp(c, "yellow")==0) *code=FL_YELLOW;
 	else if (strcasecmp(c, "green")==0) *code=FL_GREEN;
 	else if (strcasecmp(c, "red")==0) *code=FL_RED;
 	else if (strcasecmp(c, "blue")==0) *code=FL_BLUE;
 	else if (strcasecmp(c, "magenta")==0) *code=FL_MAGENTA;
 	else if (strcasecmp(c, "brown")==0) *code=FL_BROWN;
 	else if (strcasecmp(c, "black")==0) *code=FL_BLACK;
 	else if (strcasecmp(c, "acc")==0) *code=FL_ACC;
 	else {
 		token=0;
 		while ( *c && *c>='0' && *c<='9' ) {
 			*code = *code*10+ *c-'0';
 			if (*code > (sizeof( flag_t ) * CHAR_BIT - 1 )) {
 				LOG(L_ERR, "ERROR: TM module: too big flag number: %s; MAX=%d\n",
 					(char *) (*param), sizeof( flag_t ) * CHAR_BIT - 1 );
 				goto error;
 			}
 			c++;
 		}
 	}
 	while ( *c && (*c==' ' || *c=='\t')) c++; /* terminating whitespaces */
 
 	if ( *code == 0 ) {
 		LOG(L_ERR, "ERROR: TM module: bad flag number: %s\n", (char *) (*param));
 		goto error;
 	}
 
 	if (*code < FL_MAX && token==0) {
 		LOG(L_ERR, "ERROR: TM module: too high flag number: %s (%d)\n; lower number"
 			" bellow %d reserved\n", (char *) (*param), *code, FL_MAX );
 		goto error;
 	}
 
 	/* free string */
 	free( *param );
 	/* fix now */
 	*param = code;
 	
 	return 0;
 
 error:
 	free( code );
 	return E_CFG;
 }
 
 
 #endif