小型的嵌入式 HTTP 服務器 GNU libmicrohttpd 0.9.21 發布
GNU libmicrohttpd 0.9.21 發布，GNU libmicrohttpd 是一個小型的嵌入式 HTTP 服務器 的 C 類庫，支持 HTTP 1.1 可以同時偵聽多個端口。
- C library: fast and small
- API is simple, expressive and fully reentrant
- Implementation is HTTP 1.1 compliant
- HTTP server can listen on multiple ports
- Four different threading models (select, poll, pthread, thread pool)
- Supported platforms include GNU/Linux, FreeBSD, OpenBSD, NetBSD, OS X, W32, Symbian and z/OS
- Support for IPv6
- Support for SHOUTcast
- Support for incremental processing of POST data (optional)
- Support for basic and digest authentication (optional)
- Support for SSL3 and TLS (requires libgcrypt and libgnutls, optional)
- Binary is only about 32k (without TLS/SSL support and other optional features)
下面是一個最為簡單的使用例子：
#include <microhttpd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#define PAGE "<html><head><title>libmicrohttpd demo</title>"\
"</head><body>libmicrohttpd demo</body></html>"
static int ahc_echo(void * cls,
struct MHD_Connection * connection,
const char * url,
const char * method,
const char * version,
const char * upload_data,
size_t * upload_data_size,
void ** ptr) {
static int dummy;
const char * page = cls;
struct MHD_Response * response;
int ret;
if (0 != strcmp(method, "GET"))
return MHD_NO; /* unexpected method */
if (&dummy != *ptr)
{
/* The first time only the headers are valid,
do not respond in the first round... */
*ptr = &dummy;
return MHD_YES;
}
if (0 != *upload_data_size)
return MHD_NO; /* upload data in a GET!? */
*ptr = NULL; /* clear context pointer */
response = MHD_create_response_from_data(strlen(page),
(void*) page,
MHD_NO,
MHD_NO);
ret = MHD_queue_response(connection,
MHD_HTTP_OK,
response);
MHD_destroy_response(response);
return ret;
}
int main(int argc,
char ** argv) {
struct MHD_Daemon * d;
if (argc != 2) {
printf("%s PORT\n",
argv[0]);
return 1;
}
d = MHD_start_daemon(MHD_USE_THREAD_PER_CONNECTION,
atoi(argv[1]),
NULL,
NULL,
&ahc_echo,
PAGE,
MHD_OPTION_END);
if (d == NULL)
return 1;
(void) getc ();
MHD_stop_daemon(d);
return 0;
}
0.9.21：
This release fixes potential problems with non-monotonic increasing system time values, makes sockets non-inheritable by default, and enables MHD to operate without a "listen" socket (for special circumstances).
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