Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1624 | giacomo | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
||
| 3 | * |
||
| 4 | * Coordinators: |
||
| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
||
| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 7 | * |
||
| 8 | * Authors : |
||
| 9 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
||
| 10 | * |
||
| 11 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
||
| 12 | * |
||
| 13 | * http://www.sssup.it |
||
| 14 | * http://retis.sssup.it |
||
| 15 | * http://shark.sssup.it |
||
| 16 | */ |
||
| 17 | |||
| 18 | #include <netinet/in.h> |
||
| 19 | |||
| 20 | #include <sys/socket.h> |
||
| 21 | #include <netinet/in.h> |
||
| 22 | #include <arpa/inet.h> |
||
| 23 | #include <netdb.h> |
||
| 24 | #include <stdio.h> |
||
| 25 | #include <unistd.h>/* close() */ |
||
| 26 | #include <stdlib.h> |
||
| 27 | #include <signal.h> |
||
| 28 | #include <string.h> |
||
| 29 | |||
| 30 | #define SERVER_PORT 20000 |
||
| 31 | #define MAX_MSG 10000 |
||
| 32 | |||
| 33 | FILE *output_file; |
||
| 34 | |||
| 35 | int miss; |
||
| 36 | |||
| 37 | void close_and_exit() |
||
| 38 | { |
||
| 39 | |||
| 40 | printf("Closing...\n"); |
||
| 41 | |||
| 42 | if (miss == 1) printf("Possible error receiving packets !\n"); |
||
| 43 | |||
| 44 | fclose(output_file); |
||
| 45 | |||
| 46 | exit(0); |
||
| 47 | |||
| 48 | } |
||
| 49 | |||
| 50 | int main(int argc, char *argv[]) |
||
| 51 | { |
||
| 52 | int sd, rc, n, cliLen,count; |
||
| 53 | struct sockaddr_in cliAddr, servAddr; |
||
| 54 | char msg[MAX_MSG]; |
||
| 55 | |||
| 56 | if (argc < 2) { |
||
| 57 | printf("%s: Enter the output file name [%s filename]\n",argv[0],argv[0]); |
||
| 58 | exit(1); |
||
| 59 | } |
||
| 60 | |||
| 61 | // socket creation |
||
| 62 | sd = socket(AF_INET, SOCK_DGRAM, 0); |
||
| 63 | if(sd < 0) { |
||
| 64 | printf("%s: cannot open socket \n",argv[0]); |
||
| 65 | exit(1); |
||
| 66 | } |
||
| 67 | |||
| 68 | output_file = fopen(argv[1],"w+b"); |
||
| 69 | if (output_file == NULL) { |
||
| 70 | printf("%s: Cannot open the file\n",argv[0]); |
||
| 71 | exit(1); |
||
| 72 | } |
||
| 73 | |||
| 74 | // bind local server port |
||
| 75 | servAddr.sin_family = AF_INET; |
||
| 76 | |||
| 77 | servAddr.sin_addr.s_addr = htonl(INADDR_ANY); |
||
| 78 | servAddr.sin_port = htons(SERVER_PORT); |
||
| 79 | |||
| 80 | rc = bind (sd, (struct sockaddr *)&servAddr,sizeof(servAddr)); |
||
| 81 | if(rc < 0) { |
||
| 82 | printf("%s: cannot bind port number %d \n", |
||
| 83 | argv[0], SERVER_PORT); |
||
| 84 | exit(1); |
||
| 85 | } |
||
| 86 | |||
| 87 | signal(SIGINT, close_and_exit); |
||
| 88 | |||
| 89 | count = 1; |
||
| 90 | miss = 0; |
||
| 91 | |||
| 92 | while(1) { |
||
| 93 | |||
| 94 | printf("Wait packet...\n"); |
||
| 95 | |||
| 96 | // receive message |
||
| 97 | cliLen = sizeof(cliAddr); |
||
| 98 | n = recvfrom(sd, msg, MAX_MSG, 0,(struct sockaddr *)&cliAddr, &cliLen); |
||
| 99 | |||
| 100 | if (n > 0) { |
||
| 101 | |||
| 102 | count++; |
||
| 103 | |||
| 104 | fwrite((void *)(msg),n,1,output_file); |
||
| 105 | |||
| 106 | } |
||
| 107 | |||
| 108 | } |
||
| 109 | |||
| 110 | fclose(output_file); |
||
| 111 | |||
| 112 | return 0; |
||
| 113 | |||
| 114 | } |
||
| 115 |