rtsp轉發代碼_八爪魚工作室吧

#include <stdio.h>
#include <WinSock2.h>

#pragma comment(lib, "ws2_32.lib")

struct line_status
{
   char line[1024];
   char prev_c;
   int data_i;
   int line_i;
};

char *parse_line(const char *data, int len, struct line_status *line_status)
{
   char prev_c, c;

   while (line_status->data_i < len)
   {
       prev_c = line_status->prev_c;
       c = data[line_status->data_i];
       line_status->data_i++;
       line_status->prev_c = c;
       if (line_status->line_i < sizeof(line_status->line) - 1)
       {
           line_status->line[line_status->line_i] = c;
           line_status->line_i++;
       }
       if (prev_c == '\r' && c == '\n')
       {
           line_status->line[line_status->line_i] = '\0';
           line_status->line_i = 0;
           return line_status->line;
       }
   }
   line_status->data_i = 0;
   return NULL;
}

int str_starts_with(const char *haystack, const char *needle)
{
   int a, b;

   a = strlen(haystack);
   b = strlen(needle);
   return a >= b && memcmp(haystack, needle, b) == 0;
}

void process_client(SOCKET sock_client)
{
   char data[4096];
   char *line;
   int len, ret;
   struct line_status line_status = {0};
   FD_SET readset;
   SOCKADDR_IN addr = {0};
   SOCKET sock_target, sock_max;
   TIMEVAL timeout;

   sock_target = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   addr.sin_family = AF_INET;
   addr.sin_addr.S_un.S_addr = inet_addr("172.32.0.93");
   addr.sin_port = htons(554);
   ret = connect(sock_target, (LPSOCKADDR)&addr, sizeof(addr));
   if (ret == -1)
   {
       printf("connect() failed\n");
       goto end;
   }

   sock_max = 0;
   if (sock_max < sock_client)
       sock_max = sock_client;
   if (sock_max < sock_target)
       sock_max = sock_target;

   FD_ZERO(&readset);
   timeout.tv_sec = 5;
   timeout.tv_usec = 0;
   while (1)
   {
       FD_SET(sock_client, &readset);
       FD_SET(sock_target, &readset);
       ret = select(sock_max + 1, &readset, NULL, NULL, &timeout);
       if (ret == -1)
           break;

       if (FD_ISSET(sock_client, &readset))
       {
           printf("sock_client\n");
           ret = recv(sock_client, data, sizeof(data), 0);
           if (ret <= 0)
           {
               printf("Connection has been closed by the media player.\n");
               break;
           }

           while (line = parse_line(data, ret, &line_status))
           {
               len = strlen(line);
               if (!str_starts_with(line, "ClientChallenge:") && !str_starts_with(line, "PlayerStarttime:") && !str_starts_with(line, "CompanyID:") && !str_starts_with(line, "GUID:") && !str_starts_with(line, "ClientChallenge:") && !str_starts_with(line, "ClientID:") && !str_starts_with(line, "RegionData:"))
               {
                   printf("[Send] len=%d\n%s", len, line);
                   send(sock_target, line, len, 0);
               }
           }
       }
       if (FD_ISSET(sock_target, &readset))
       {
           printf("sock_target\n");
           ret = recv(sock_target, data, sizeof(data), 0);
           if (ret <= 0)
           {
               printf("Connection has been closed by the device.\n");
               break;
           }
           printf("[Recv] len=%d\n%.*s", ret, ret, data);
           send(sock_client, data, ret, 0);
       }
   }

end:
   closesocket(sock_target);
   closesocket(sock_client);
}

void main()
{
   int ret;
   SOCKADDR_IN addr = {0};
   SOCKET sock_client, sock_server;
   WSADATA wsadata;

   WSAStartup(MAKEWORD(2, 2), &wsadata);

   sock_server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   addr.sin_family = AF_INET;
   addr.sin_port = htons(554);
   ret = bind(sock_server, (LPSOCKADDR)&addr, sizeof(addr));
   if (ret == -1)
   {
       printf("bind() failed. ret=%d\n", ret);
       goto err;
   }

   listen(sock_server, 5);
   ret = sizeof(addr);
   sock_client = accept(sock_server, (LPSOCKADDR)&addr, &ret);
   process_client(sock_client);

err:
   closesocket(sock_server);
   WSACleanup();
}


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rtsp轉發代碼

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