source: icas_send/icas_send.c @ 248

#include <stdio.h>

#include <sys/socket.h>

#include <arpa/inet.h>

#include <errno.h>

#include <stdlib.h>

#include <string.h>

#include <fcntl.h>

#include <signal.h>

#include <unistd.h>

#include <netinet/in.h>



void Die(char *mess)

{

    perror(mess);

    exit(1);

}



int main(int argc, char *argv[])

{

    struct  sockaddr_in send_sockopt;

    int     send_sock;

    int     send_length = sizeof(send_sockopt);

    FILE    *fd;

    char    BLACK_LIST[1024];

    size_t  len = 0;

    ssize_t read;



    if (argc <= 3)

    {

  fprintf(stderr, "USAGE: %s <RECV_IP> <RECV_PORT> <BLACK LIST FILE PATH>\n", argv[0]);

  fprintf(stderr, "Ex. %s 127.0.0.1 3838 /opt/icas/report/black/blacklist\n", argv[0]);

  exit(1);

    }



    /* open blacklist to read black list data */

    fd = fopen(argv[3],"r");

    if (fd == NULL)

    {

      fprintf(stderr, "%s: Couldn't open file %s; %s\n", argv[0], "blacklist", strerror (errno));

  exit(1);

    }



    /* Create the UDP socket to send response to icas_recv */

    if ((send_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)

    {

  Die("Failed to create socket for sending black list.");

    }



    /* Construct the server sockaddr_in structure */

    memset(&send_sockopt,  0, sizeof(send_sockopt));      /* Clear struct */

    memset(&BLACK_LIST,    0, sizeof(BLACK_LIST));    /* Clear string */

    sprintf(BLACK_LIST,"This is a test!");



    // socket option of icas_send socket

    send_sockopt.sin_family = AF_INET;                   /* Internet/IP */

    send_sockopt.sin_addr.s_addr = inet_addr(argv[1]);   /* IP address */

    send_sockopt.sin_port = htons(atoi(argv[2]));        /* server port */



    while(fgets(BLACK_LIST,sizeof(BLACK_LIST),fd))

    {

  if (sendto(send_sock, BLACK_LIST, sizeof(BLACK_LIST), 0, 

       (struct sockaddr *) &send_sockopt, 

       sizeof(send_sockopt)) != sizeof(BLACK_LIST)) 

  {

      Die("1: Mismatch in number of sent bytes");

  }

    }



    close(send_sock);

    exit(0);

}