user.c

这是有名的＜＜嵌入式系统TCP/IP应用层协议＞＞,M.Tim Jones 著

/*
 *  Embedded HTTP Server Dynamic Content/Handler User Entries
 *
 *  ./software/ch7/emhttps/user.c
 *
 *  [e-mail]
 *
 */

#include <stdio.h>
#include "dyncntnt.h"

static char dataline[80];

/*----------------------------------------------------------------------------
 * myvarfunc() - Our function to emit dynamic content for "myvar".
 *--------------------------------------------------------------------------*/
char *myvarfunc()
{
  static int myvar = 0;

  myvar++;

  sprintf(dataline, "%d", myvar);

  return(dataline);
}


/*----------------------------------------------------------------------------
 * devstatefunc() - Our function to emit dynamic content for "devstate".
 *--------------------------------------------------------------------------*/
char *devstateFunc()
{
  /* Dummy return... */
  return( "on" );
}


/*----------------------------------------------------------------------------
 * devtempfunc() - Our function to emit dynamic content for "devtemp".
 *--------------------------------------------------------------------------*/
char *devtempFunc()
{
  /* Dummy return... */
  return( "25C" );
}


/*----------------------------------------------------------------------------
 * devaccessFunc() - Our function to emit dynamic content for "devaccess".
 *--------------------------------------------------------------------------*/
char *devaccessFunc()
{
  static int accesses = 0;

  accesses++;

  sprintf(dataline, "%d", accesses);

  return(dataline);
}


/*----------------------------------------------------------------------------
 * myHandler() - Our function to handle form posting for "/control".
 *--------------------------------------------------------------------------*/
void myHandler( char *content )
{
  char value[80];
  printf("\nmyHandler called!!!\n");

  if (parseVariable(content, "Test1", value) == 0) {
    printf("Test1 is %s\n", value);
  } else {
    printf("Test1 not found\n");
  }

  if (parseVariable(content, "Test2", value) == 0) {
    printf("Test2 is %s\n", value);
  } else {
    printf("Test2 not found\n");
  }

  if (parseVariable(content, "Test3", value) == 0) {
    printf("Test3 is %s\n", value);
  } else {
    printf("Test3 not found\n");
  }

}


/*----------------------------------------------------------------------------
 * userInit() - Add our entry to the dynamic content module.
 *--------------------------------------------------------------------------*/
void userInit()
{
  addDynamicContent("myvar", &myvarfunc);
  addDynamicContent("devstate", &devstateFunc);
  addDynamicContent("devtemp", &devtempFunc);
  addDynamicContent("devaccess", &devaccessFunc);

  addDynamicHandler("/control", &myHandler);
}

/*
 *  Copyright (c) 2002 Charles River Media.  All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or 
 *  without modification, is hereby granted without fee 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.  Neither the name of Charles River Media nor the names of 
 *        its contributors may be used to endorse or promote products 
 *        derived from this software without specific prior 
 *        written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY CHARLES RIVER MEDIA AND CONTRIBUTERS 
 * 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CHARLES
 * RIVER MEDIA OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARAY, 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.
 */