Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

modules/pico_http_util.c@1:cfe8984a32b4, 2013-05-17 (annotated)

Committer:
tass
Date:
Fri May 17 12:09:59 2013 +0000
Revision:
1:cfe8984a32b4
Parent:
libraries/picotcp/modules/pico_http_util.c@0:d7f2341ab245 
Update for smaller SOCKETQ

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daniele 0:d7f2341ab245 1 /*********************************************************************
daniele 0:d7f2341ab245 2 PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
daniele 0:d7f2341ab245 3 See LICENSE and COPYING for usage.
daniele 0:d7f2341ab245 4
daniele 0:d7f2341ab245 5 Author: Andrei Carp <andrei.carp@tass.be>
daniele 0:d7f2341ab245 6 *********************************************************************/
daniele 0:d7f2341ab245 7
daniele 0:d7f2341ab245 8 #include <stdint.h>
daniele 0:d7f2341ab245 9 #include "pico_config.h"
daniele 0:d7f2341ab245 10 #include "pico_stack.h"
daniele 0:d7f2341ab245 11 #include "pico_protocol.h"
daniele 0:d7f2341ab245 12 #include "pico_http_util.h"
daniele 0:d7f2341ab245 13
daniele 0:d7f2341ab245 14 #define TRUE 1
daniele 0:d7f2341ab245 15 #define FALSE 0
daniele 0:d7f2341ab245 16
daniele 0:d7f2341ab245 17 #define HTTP_PROTO_TOK "http://"
daniele 0:d7f2341ab245 18 #define HTTP_PROTO_LEN 7u
daniele 0:d7f2341ab245 19
daniele 0:d7f2341ab245 20 #if defined PICO_SUPPORT_HTTP_CLIENT || defined PICO_SUPPORT_HTTP_SERVER
daniele 0:d7f2341ab245 21
daniele 0:d7f2341ab245 22 int pico_itoaHex(uint16_t port, char * ptr)
daniele 0:d7f2341ab245 23 {
daniele 0:d7f2341ab245 24 int size = 0;
daniele 0:d7f2341ab245 25 int index;
daniele 0:d7f2341ab245 26
daniele 0:d7f2341ab245 27 // transform to from number to string [ in backwards ]
daniele 0:d7f2341ab245 28 while(port)
daniele 0:d7f2341ab245 29 {
daniele 0:d7f2341ab245 30 ptr[size] = ((port & 0xF) < 10) ? ((port & 0xF) + '0') : ((port & 0xF) - 10 + 'a');
daniele 0:d7f2341ab245 31 port = port>>4u; //divide by 16
daniele 0:d7f2341ab245 32 size++;
daniele 0:d7f2341ab245 33 }
daniele 0:d7f2341ab245 34
daniele 0:d7f2341ab245 35 // invert positions
daniele 0:d7f2341ab245 36 for(index=0 ;index < size>>1u ;index++)
daniele 0:d7f2341ab245 37 {
daniele 0:d7f2341ab245 38 char c = ptr[index];
daniele 0:d7f2341ab245 39 ptr[index] = ptr[size-index-1];
daniele 0:d7f2341ab245 40 ptr[size-index-1] = c;
daniele 0:d7f2341ab245 41 }
daniele 0:d7f2341ab245 42 ptr[size] = '\0';
daniele 0:d7f2341ab245 43 return size;
daniele 0:d7f2341ab245 44 }
daniele 0:d7f2341ab245 45
daniele 0:d7f2341ab245 46 int pico_itoa(uint16_t port, char * ptr)
daniele 0:d7f2341ab245 47 {
daniele 0:d7f2341ab245 48 int size = 0;
daniele 0:d7f2341ab245 49 int index;
daniele 0:d7f2341ab245 50
daniele 0:d7f2341ab245 51 // transform to from number to string [ in backwards ]
daniele 0:d7f2341ab245 52 while(port)
daniele 0:d7f2341ab245 53 {
daniele 0:d7f2341ab245 54 ptr[size] = port%10 + '0';
daniele 0:d7f2341ab245 55 port = port/10;
daniele 0:d7f2341ab245 56 size++;
daniele 0:d7f2341ab245 57 }
daniele 0:d7f2341ab245 58
daniele 0:d7f2341ab245 59 // invert positions
daniele 0:d7f2341ab245 60 for(index=0 ;index < size>>1u ;index++)
daniele 0:d7f2341ab245 61 {
daniele 0:d7f2341ab245 62 char c = ptr[index];
daniele 0:d7f2341ab245 63 ptr[index] = ptr[size-index-1];
daniele 0:d7f2341ab245 64 ptr[size-index-1] = c;
daniele 0:d7f2341ab245 65 }
daniele 0:d7f2341ab245 66 ptr[size] = '\0';
daniele 0:d7f2341ab245 67 return size;
daniele 0:d7f2341ab245 68 }
daniele 0:d7f2341ab245 69
daniele 0:d7f2341ab245 70
daniele 0:d7f2341ab245 71 int pico_processURI(const char * uri, struct pico_http_uri * urikey)
daniele 0:d7f2341ab245 72 {
daniele 0:d7f2341ab245 73
daniele 0:d7f2341ab245 74 uint16_t lastIndex = 0, index;
daniele 0:d7f2341ab245 75
daniele 0:d7f2341ab245 76 if(!uri || !urikey || uri[0] == '/')
daniele 0:d7f2341ab245 77 {
daniele 0:d7f2341ab245 78 pico_err = PICO_ERR_EINVAL;
daniele 0:d7f2341ab245 79 goto error;
daniele 0:d7f2341ab245 80 }
daniele 0:d7f2341ab245 81
daniele 0:d7f2341ab245 82 // detect protocol => search for "://"
daniele 0:d7f2341ab245 83 if(memcmp(uri,HTTP_PROTO_TOK,HTTP_PROTO_LEN) == 0) // could be optimized
daniele 0:d7f2341ab245 84 { // protocol identified, it is http
daniele 0:d7f2341ab245 85 urikey->protoHttp = TRUE;
daniele 0:d7f2341ab245 86 lastIndex = HTTP_PROTO_LEN;
daniele 0:d7f2341ab245 87 }
daniele 0:d7f2341ab245 88 else
daniele 0:d7f2341ab245 89 {
daniele 0:d7f2341ab245 90 if(strstr(uri,"://")) // different protocol specified
daniele 0:d7f2341ab245 91 {
daniele 0:d7f2341ab245 92 urikey->protoHttp = FALSE;
daniele 0:d7f2341ab245 93 goto error;
daniele 0:d7f2341ab245 94 }
daniele 0:d7f2341ab245 95 // no protocol specified, assuming by default it's http
daniele 0:d7f2341ab245 96 urikey->protoHttp = TRUE;
daniele 0:d7f2341ab245 97 }
daniele 0:d7f2341ab245 98
daniele 0:d7f2341ab245 99 // detect hostname
daniele 0:d7f2341ab245 100 index = lastIndex;
daniele 0:d7f2341ab245 101 while(uri[index] && uri[index]!='/' && uri[index]!=':') index++;
daniele 0:d7f2341ab245 102
daniele 0:d7f2341ab245 103 if(index == lastIndex)
daniele 0:d7f2341ab245 104 {
daniele 0:d7f2341ab245 105 // wrong format
daniele 0:d7f2341ab245 106 urikey->host = urikey->resource = NULL;
daniele 0:d7f2341ab245 107 urikey->port = urikey->protoHttp = 0u;
daniele 0:d7f2341ab245 108
daniele 0:d7f2341ab245 109 goto error;
daniele 0:d7f2341ab245 110 }
daniele 0:d7f2341ab245 111 else
daniele 0:d7f2341ab245 112 {
daniele 0:d7f2341ab245 113 // extract host
daniele 0:d7f2341ab245 114 urikey->host = (char *)pico_zalloc(index-lastIndex+1);
daniele 0:d7f2341ab245 115
daniele 0:d7f2341ab245 116 if(!urikey->host)
daniele 0:d7f2341ab245 117 {
daniele 0:d7f2341ab245 118 // no memory
daniele 0:d7f2341ab245 119 goto error;
daniele 0:d7f2341ab245 120 }
daniele 0:d7f2341ab245 121 memcpy(urikey->host,uri+lastIndex,index-lastIndex);
daniele 0:d7f2341ab245 122 }
daniele 0:d7f2341ab245 123
daniele 0:d7f2341ab245 124 if(!uri[index])
daniele 0:d7f2341ab245 125 {
daniele 0:d7f2341ab245 126 // nothing specified
daniele 0:d7f2341ab245 127 urikey->port = 80u;
daniele 0:d7f2341ab245 128 urikey->resource = pico_zalloc(2u);
daniele 0:d7f2341ab245 129 urikey->resource[0] = '/';
daniele 0:d7f2341ab245 130 return HTTP_RETURN_OK;
daniele 0:d7f2341ab245 131 }
daniele 0:d7f2341ab245 132 else if(uri[index] == '/')
daniele 0:d7f2341ab245 133 {
daniele 0:d7f2341ab245 134 urikey->port = 80u;
daniele 0:d7f2341ab245 135 }
daniele 0:d7f2341ab245 136 else if(uri[index] == ':')
daniele 0:d7f2341ab245 137 {
daniele 0:d7f2341ab245 138 urikey->port = 0u;
daniele 0:d7f2341ab245 139 index++;
daniele 0:d7f2341ab245 140 while(uri[index] && uri[index]!='/')
daniele 0:d7f2341ab245 141 {
daniele 0:d7f2341ab245 142 // should check if every component is a digit
daniele 0:d7f2341ab245 143 urikey->port = urikey->port*10 + (uri[index] - '0');
daniele 0:d7f2341ab245 144 index++;
daniele 0:d7f2341ab245 145 }
daniele 0:d7f2341ab245 146 }
daniele 0:d7f2341ab245 147
daniele 0:d7f2341ab245 148 // extract resource
daniele 0:d7f2341ab245 149 if(!uri[index])
daniele 0:d7f2341ab245 150 {
daniele 0:d7f2341ab245 151 urikey->resource = pico_zalloc(2u);
daniele 0:d7f2341ab245 152 urikey->resource[0] = '/';
daniele 0:d7f2341ab245 153 }
daniele 0:d7f2341ab245 154 else
daniele 0:d7f2341ab245 155 {
daniele 0:d7f2341ab245 156 lastIndex = index;
daniele 0:d7f2341ab245 157 while(uri[index] && uri[index]!='?' && uri[index]!='&' && uri[index]!='#') index++;
daniele 0:d7f2341ab245 158 urikey->resource = (char *)pico_zalloc(index-lastIndex+1);
daniele 0:d7f2341ab245 159
daniele 0:d7f2341ab245 160 if(!urikey->resource)
daniele 0:d7f2341ab245 161 {
daniele 0:d7f2341ab245 162 // no memory
daniele 0:d7f2341ab245 163 pico_err = PICO_ERR_ENOMEM;
daniele 0:d7f2341ab245 164 goto error;
daniele 0:d7f2341ab245 165 }
daniele 0:d7f2341ab245 166
daniele 0:d7f2341ab245 167 memcpy(urikey->resource,uri+lastIndex,index-lastIndex);
daniele 0:d7f2341ab245 168 }
daniele 0:d7f2341ab245 169
daniele 0:d7f2341ab245 170 return HTTP_RETURN_OK;
daniele 0:d7f2341ab245 171
daniele 0:d7f2341ab245 172 error :
daniele 0:d7f2341ab245 173 if(urikey->resource)
daniele 0:d7f2341ab245 174 {
daniele 0:d7f2341ab245 175 pico_free(urikey->resource);
daniele 0:d7f2341ab245 176 urikey->resource = NULL;
daniele 0:d7f2341ab245 177 }
daniele 0:d7f2341ab245 178 if(urikey->host)
daniele 0:d7f2341ab245 179 {
daniele 0:d7f2341ab245 180 pico_free(urikey->host);
daniele 0:d7f2341ab245 181 urikey->host = NULL;
daniele 0:d7f2341ab245 182 }
daniele 0:d7f2341ab245 183
daniele 0:d7f2341ab245 184 return HTTP_RETURN_ERROR;
daniele 0:d7f2341ab245 185 }
daniele 0:d7f2341ab245 186 #endif