hello everyone
though im unfamilar with C/C++,i have wrote the following code with libcurl docs,how do i post the json on https(the ssl website has no cert,just like https://www.google.com,it don't need the cert)?i search google for this,however there is no answer.i tried to write the following code,are these correct?how do i determine the http server respond ok ?in addition,static method is not allow use in dll

#include <stdio.h>
#include <curl/curl.h>
#include "slhttpclient.h"
#include "cJSON.h"

struct WriteThis {
  const char *readptr
  int sizeleft
}

static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
{
  struct WriteThis *pooh = (struct WriteThis *)userp

  if(size*nmemb sizeleft) {
    *(char *)ptr = pooh->readptr[0] /* copy one single byte */
    pooh->readptr++ /* advance pointer */
    pooh->sizeleft-- /* less data left */
    return 1 /* we return 1 byte at a time! */
  }

  return 0 /* no more data left to deliver */
}

int __stdcall sendmydata(const char * user,const char * pass,const int recordcount,const char * prodno,const char * prodadd,const char * batchno,const char* invnum,const char * stdprice,const char * sellprice,const char * clino,const char * invbywho)
{

    CURL *curl
  CURLcode res

  struct WriteThis pooh
  
  //serialze to json
  cJSON *root
  root=cJSON_CreateObject()
  cJSON_AddStringToObject(root, "user", user)
  cJSON_AddStringToObject(root, "pass", pass)
  cJSON_AddNumberToObject(root, "recordcount", pass)
  cJSON_AddStringToObject(root, "prodno", prodno)
  cJSON_AddStringToObject(root, "prodadd", prodadd)
  cJSON_AddStringToObject(root, "batchno", batchno)
  cJSON_AddStringToObject(root, "invnum", invnum)
  cJSON_AddStringToObject(root, "stdprice", stdprice)
  cJSON_AddStringToObject(root, "sellprice", sellprice)
  cJSON_AddStringToObject(root, "clino",clino)
  cJSON_AddStringToObject(root, "invbywho",invbywho)

  char *out
  out=cJSON_Print(root)

  pooh.readptr = out
  pooh.sizeleft = strlen(out)

  curl = curl_easy_init()
  if(curl) {
    /* First set the URL that is about to receive our POST. This URL can
       just as well be a https:// URL if that is what should receive the
       data. */
    curl_easy_setopt(curl, CURLOPT_URL, "https://www.myexample.com")

    /* Perform the request, res will get the return code */
   curl_easy_setopt(curl, CURLOPT_POSTFIELDS, out)

    res = curl_easy_perform(curl)
    free(out)
    /* always cleanup */
    curl_easy_cleanup(curl)
  }
  return 0
}

ps:i have complied the static library in VC++ project with openssl,the libcurl is support SSL

best regards
ken

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Received on 2015-01-09