最簡單的HTTP SERVER

/**
  @file sample_httpd.c
  @author Kevin Lynx
  @brief sample httpd, just for testing purpose.
*/
#include <winsock2.h>
#include <stdio.h>
 
void http_response( SOCKET con, const char *request )
{
    /* get the method */
    char *token = strtok( request, " " );
    char *uri = strtok( 0, " " );
    //char *uri1 = strtok( 0, " " );
    char file[64];
    sprintf( file, ".%s", uri );
 
    {
        /* load the file content */
        FILE *fp = fopen( file, "rb" );
        if( fp == 0 )
        {
            /* response 404 status code */
            char response[] = "HTTP/1.1 404 NOT FOUND\r\n\r\n";
            send( con, response, strlen( response ), 0 );
        }
        else
        {
            /* response the resource */
            /* first, load the file */
            int file_size ;
            char *content;
            char response[1024];
            fseek( fp, 0, SEEK_END );
            file_size = ftell( fp );
            fseek( fp, 0, SEEK_SET );
            content = (char*)malloc( file_size + 1 );
            fread( content, file_size, 1, fp );
            content[file_size] = 0;
 
            sprintf( response, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nContent-Length: %d\r\n\r\n%s", file_size, content );

            send( con, response, strlen( response ), 0 );
            free( content );
        }
    }
}
 
int main()
{
    WSADATA wd;
    int ret;
    SOCKET s;
 
    ret = WSAStartup( MAKEWORD( 2, 0 ), &wd );
    if( ret < 0 )
    {
        fprintf( stderr, "winsock startup failed\n" );
        exit( -1 );
    }
    s = socket( AF_INET, SOCK_STREAM, 0 );
 
    {
        /* bind and listen */
        struct sockaddr_in addr;
        memset( &addr, 0, sizeof( addr ) );
        addr.sin_family = AF_INET;
        addr.sin_port = htons( 8080 );
        addr.sin_addr.s_addr = inet_addr( "0.0.0.0" );
        ret = bind( s, (struct sockaddr*)&addr, sizeof( addr ) );
        if( ret < 0 )
        {
            fprintf( stderr, "bind failed\n" );
            closesocket( s );
            exit( -1 );
        }
        ret = listen( s, 1024 );
        if( ret < 0 )
        {
            fprintf( stderr, "listen failed\n" );
            closesocket( s );
            exit( -1 );
        }
    }
 
    {
        SOCKET con = accept( s, 0, 0 );
        /* recv request */
        char request[1024] = { 0 };
        ret = recv( con, request, sizeof( request ), 0 );
        printf( request );
        http_response( con, request );
        closesocket( con );
    }
    closesocket( s );
    WSACleanup();
    return 0;
}