我无法确定我的代码在哪里出现段错误?
基本上,它通过 SSL (HTTPS) 安全连接连接到服务器并进行 GET,提供 MachineID(程序将其作为参数)。
还应设置一些自定义标题。然后我将返回的正文和标题保存为单独的文本文件。(基本上它会运行一个 shell 脚本,所以我的远程系统可以自动从我的服务器获取“订单”)
但它有段错误,我必须在其上开发它的唯一 linux 机器是我的 VPS,由于他们奇怪的虚拟化,它总是在加载 GDB 时崩溃......:o
谁能告诉我问题出在哪里?- 我认为它几乎可以肯定在我的字符串连接中 - 我在其中建立标题和请求 URL。
编辑:呃,忘记密码了!
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <curl/curl.h>
#include <string.h>
static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
{
int written = fwrite(ptr, size, nmemb, (FILE *)stream);
return written;
}
int main(int argc, char *argv[])
{
static const char *headerfilename = "head.out";
static const char *bodyfilename = "body.out";
char *url = "https://fakeserver.fakesite.com:8443/SystemManager/getOrders.jsp?machineID=";
char *customHeader = "MachineID:";
char *machineID = NULL;
struct curl_slist *chunk = NULL;
CURL *curl;
CURLcode res;
FILE *headerfile;
FILE *bodyfile;
if (argc == 2)
{
machineID = argv[1];
strcat(url,machineID);
}
else
{
printf("Usage: %s <MachineID>\n", argv[0]);
return 1;
}
curl_global_init(CURL_GLOBAL_SSL);
// init the curl session
curl = curl_easy_init();
if(curl) {
// set URL to get
curl_easy_setopt(curl, CURLOPT_URL, url);
// no progress meter please
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L);
// send all data to this function
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
// some servers don't like requests that are made without a user-agent field, so we provide one
curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0");
// Also add a custom MachineID header
strcat(customHeader, machineID);
chunk = curl_slist_append(chunk, customHeader);
res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
// These tweaks must be enabled for my dodgy self-signed certificate.
// DONT bother verifying our certificate is signed by a trusted CA.
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
// DONT check the hostname on the certificate matcheds the remote system.
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
// open the files
headerfile = fopen(headerfilename,"w");
if (headerfile == NULL) {
curl_easy_cleanup(curl);
return -1;
}
else
{
// we want the headers to this file handle
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, headerfile);
}
bodyfile = fopen(bodyfilename,"w");
if (bodyfile == NULL) {
curl_easy_cleanup(curl);
return -1;
}
else
{
// we want the body to this file handle
curl_easy_setopt(curl, CURLOPT_WRITEDATA, bodyfile);
}
// get it!
res = curl_easy_perform(curl);
// close the files
fclose(headerfile);
fclose(bodyfile);
// always cleanup curl stuff
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}