[245] | 1 | #include <stdio.h> |
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| 2 | #include <sys/socket.h> |
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| 3 | #include <arpa/inet.h> |
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| 4 | #include <errno.h> |
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| 5 | #include <stdlib.h> |
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| 6 | #include <string.h> |
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| 7 | #include <fcntl.h> |
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| 8 | #include <signal.h> |
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| 9 | #include <unistd.h> |
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| 10 | #include <netinet/in.h> |
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| 11 | |
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| 12 | void Die(char *mess) |
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| 13 | { |
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| 14 | perror(mess); |
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| 15 | exit(1); |
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| 16 | } |
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| 17 | |
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| 18 | int main(int argc, char *argv[]) |
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| 19 | { |
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[246] | 20 | struct sockaddr_in send_sockopt; |
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| 21 | int send_sock; |
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| 22 | int send_length = sizeof(send_sockopt); |
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| 23 | FILE *fd; |
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| 24 | char BLACK_LIST[1024]; |
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| 25 | size_t len = 0; |
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| 26 | ssize_t read; |
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[245] | 27 | |
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| 28 | if (argc <= 2) |
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| 29 | { |
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| 30 | fprintf(stderr, "USAGE: %s <RECV_IP> <RECV_PORT>\n", argv[0]); |
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| 31 | exit(1); |
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| 32 | } |
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| 33 | |
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[246] | 34 | /* open blacklist to read black list data */ |
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| 35 | fd = fopen("blacklist","r"); |
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| 36 | if (fd == NULL) |
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| 37 | { |
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| 38 | fprintf(stderr, "%s: Couldn't open file %s; %s\n", argv[0], "blacklist", strerror (errno)); |
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| 39 | exit(1); |
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| 40 | } |
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| 41 | |
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[245] | 42 | /* Create the UDP socket to send response to icas_recv */ |
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| 43 | if ((send_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) |
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| 44 | { |
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| 45 | Die("Failed to create socket for sending black list."); |
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| 46 | } |
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| 47 | |
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| 48 | /* Construct the server sockaddr_in structure */ |
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| 49 | memset(&send_sockopt, 0, sizeof(send_sockopt)); /* Clear struct */ |
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| 50 | memset(&BLACK_LIST, 0, sizeof(BLACK_LIST)); /* Clear string */ |
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| 51 | sprintf(BLACK_LIST,"This is a test!"); |
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| 52 | |
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| 53 | // socket option of icas_send socket |
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| 54 | send_sockopt.sin_family = AF_INET; /* Internet/IP */ |
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| 55 | send_sockopt.sin_addr.s_addr = inet_addr(argv[1]); /* IP address */ |
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| 56 | send_sockopt.sin_port = htons(atoi(argv[2])); /* server port */ |
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| 57 | |
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[246] | 58 | while(fgets(BLACK_LIST,sizeof(BLACK_LIST),fd)) |
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| 59 | { |
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| 60 | if (sendto(send_sock, BLACK_LIST, sizeof(BLACK_LIST), 0, |
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| 61 | (struct sockaddr *) &send_sockopt, |
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| 62 | sizeof(send_sockopt)) != sizeof(BLACK_LIST)) |
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| 63 | { |
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| 64 | Die("1: Mismatch in number of sent bytes"); |
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| 65 | } |
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[245] | 66 | } |
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| 67 | |
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| 68 | close(send_sock); |
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| 69 | exit(0); |
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| 70 | } |
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