/* Synthetic runtime HTTP producer for the private network composition only. */
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
int main(int argc,char **argv) {
    if(argc!=3)return 2;
    int fd=socket(AF_INET,SOCK_STREAM,0),one=1;
    struct sockaddr_in addr={.sin_family=AF_INET,.sin_port=htons(atoi(argv[2]))};
    if(fd<0 || inet_pton(AF_INET,argv[1],&addr.sin_addr)!=1)return 3;
    setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,&one,sizeof(one));
    if(bind(fd,(void *)&addr,sizeof(addr)) || listen(fd,16))return 4;
    for(;;) {
        int client=accept(fd,0,0);if(client<0)continue;
        char request[8193]={0};size_t used=0;
        while(used<8192 && !strstr(request,"\r\n\r\n")) {
            ssize_t n=read(client,request+used,8192-used);if(n<=0)break;
            used+=(size_t)n;request[used]=0;
        }
        const char *body=strstr(request,"session=")?"fixture-session-leaked\n":"backend-retained-marker\n";
        char response[256];int length=snprintf(response,sizeof(response),
            "HTTP/1.1 200 OK\r\nContent-Length: %zu\r\nConnection: close\r\n\r\n%s",strlen(body),body);
        if(length>0 && length<(int)sizeof(response))write(client,response,(size_t)length);
        close(client);
    }
}