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