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79 lines
2.3 KiB
79 lines
2.3 KiB
/* $Id$
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*
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* Copyright (C) 2006-2007 VozTelecom Sistemas S.L
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* =====================================================================================
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*
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* Filename: encode_content_length.c
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*
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* Description: Function to encode content-length headers.
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*
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* Version: 1.0
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* Created: 21/11/05 02:02:58 CET
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* Revision: none
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* Compiler: gcc
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*
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* Author: Elias Baixas (EB), elias@conillera.net
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* Company: VozTele.com
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*
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* =====================================================================================
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <string.h>
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#include <netinet/in.h>
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/*
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* Encodes a content-length header.
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* encoding is as follows:
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* 1: length of the payload.
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* N: Network-Byte-Ordered(little endian) of the
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* multibyte number represeting the length (now, it is
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* a long integer)
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*/
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int encode_contentlength(char *hdr,int hdrlen,long int len,char *where)
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{
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long int longint;
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longint = htonl(len);
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where[0]=sizeof(long int);
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memcpy(&where[1],&longint,sizeof(long int));
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return 1+sizeof(long int);
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}
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int print_encoded_contentlength(FILE *fd,char *hdr,int hdrlen,unsigned char *payload,int paylen,char *prefix)
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{
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long int content_length;
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int i;
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memcpy(&content_length,&payload[1],payload[0]);
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content_length=ntohl(content_length);
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fprintf(fd,"%s",prefix);
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for(i=0;i<paylen;i++)
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fprintf(fd,"%s%d%s",i==0?"ENCODED CONTENT LENGTH BODY:[":":",payload[i],i==paylen-1?"]\n":"");
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fprintf(fd,"%s CONTENT LENGTH=[%d]\n",prefix,(int)content_length);
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return 1;
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}
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