1.准备工具
1).交叉编译工具
2).下载libcurl和openssl源代码,我使用的是(openssl-1.0.2o.tar,curl-7.59.0.tar)
3).查看cpu详细
~ # cat /proc/cpuinfo
Processor : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 1196.85
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
Hardware : hi3516a
Revision : 0000
Serial : 0000000000000000
2.开始编译
openssl
库版本 : openssl-1.0.2o
-march和-D__ARM_MAX_ARCH__的值需要对比cpu信息调整
编译参数:
./Configure --prefix=/home/xt/libopenssl --cross-compile-prefix=arm-hisiv300-linux- no-asm shared linux-armv4 -march=armv7-a -D__ARM_MAX_ARCH__=7
make&&make install
curl
库版本 : curl-7.59.0
编译参数:
env LDFLAGS=-R/home/xt/lib/libopenssl/lib ./configure --prefix=/home/xt/libcurl CC=arm-hisiv300-linux-gcc --host=arm-hisiv300-linux --with-ssl=/home/xt/libopenssl
需要看到对用SLL支持显示为支持状态.
这里显示的no就需要检查前面步骤是否错误了
make&&make install
3.测试代码测试(来自互联网,本人也是用的这段代码测试的)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
static size_t save_response_callback(void *buffer, size_t size, size_t count, void **response)
{
char *ptr = NULL;
printf("buffer is %s
", (char *)buffer);
ptr = (char *)malloc(count * size + 4);
memcpy(ptr, buffer, count * size);
*response = ptr;
return count;
}
int main(int argc, char *argv[])
{
CURL *curl;
CURLcode res;
char *response = NULL;
if (argc != 2)
{
printf("Usage:file<url>;
");
return;
}
//curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if (curl != NULL)
{
#if SSL_CERTIFICATE_VERIFICATION
// 方法1, 设定一个SSL判别证书, 未测试
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1L);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1L);
curl_easy_setopt(curl, CURLOPT_CAINFO, "cacert.pem"); // TODO: 设置一个证书文件
#else
// 方法2, 设定为不验证证书和HOST
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
curl_easy_setopt(curl, CURLOPT_HEADER, 0); //设置httpheader 解析, 不需要将HTTP头写传入回调函数
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L); //显示HTTP状态码
curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L); // TODO: 打开调试信息
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1); //设置允许302 跳转
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &save_response_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, response);
//curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); //指定解析到的IP地址格式,多IP才有意义
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L); //在发起连接前等待的时间
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1L); //忽略所有的curl传递给php进行的信号
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L); //设置cURL允许执行的最长秒数(下载大文件的时候需要调节)
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); //linux多线程情况应注意的设置(防止curl被alarm信号干扰)
set_share_handle(curl);
res = curl_easy_perform(curl);
if (res != CURLE_OK)
{
printf("curl_wasy_perform error = %s", curl_easy_strerror(res));
}
printf("response<%s>
", response);
curl_easy_cleanup(curl);
}
}