Rev 1293 | Rev 1304 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1293 | 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 | |||
| 29 | #define SERVER_PORT 20000 |
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| 30 | #define MAX_MSG 10000 |
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| 31 | |||
| 32 | struct tracer_udp_header { |
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| 33 | char id[12]; |
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| 34 | unsigned int pkt_number; |
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| 35 | unsigned int events; |
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| 36 | unsigned int size; |
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| 37 | }; |
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| 38 | |||
| 39 | FILE *output_file; |
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| 40 | |||
| 41 | void close_and_exit() |
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| 42 | { |
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| 43 | |||
| 44 | printf("Closing...\n"); |
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| 45 | |||
| 46 | fclose(output_file); |
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| 47 | |||
| 48 | exit(0); |
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| 49 | |||
| 50 | } |
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| 51 | |||
| 52 | int main(int argc, char *argv[]) |
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| 53 | { |
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| 54 | int sd, rc, n, cliLen; |
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| 55 | struct sockaddr_in cliAddr, servAddr; |
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| 56 | char msg[MAX_MSG]; |
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| 57 | |||
| 58 | struct tracer_udp_header *pkt_head = (struct tracer_udp_header *)(msg); |
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| 59 | |||
| 60 | if (argc < 2) { |
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| 61 | printf("%s: Enter the output file name [%s filename]\n",argv[0],argv[0]); |
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| 62 | exit(1); |
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| 63 | } |
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| 64 | |||
| 65 | // socket creation |
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| 66 | sd = socket(AF_INET, SOCK_DGRAM, 0); |
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| 67 | if(sd < 0) { |
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| 68 | printf("%s: cannot open socket \n",argv[0]); |
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| 69 | exit(1); |
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| 70 | } |
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| 71 | |||
| 72 | output_file = fopen(argv[1],"w+b"); |
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| 73 | if (output_file == NULL) { |
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| 1294 | giacomo | 74 | printf("%s: Cannot open the file\n",argv[0]); |
| 1293 | giacomo | 75 | exit(1); |
| 76 | } |
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| 77 | |||
| 78 | // bind local server port |
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| 79 | servAddr.sin_family = AF_INET; |
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| 80 | |||
| 81 | servAddr.sin_addr.s_addr = htonl(INADDR_ANY); |
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| 82 | servAddr.sin_port = htons(SERVER_PORT); |
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| 83 | |||
| 84 | rc = bind (sd, (struct sockaddr *)&servAddr,sizeof(servAddr)); |
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| 85 | if(rc < 0) { |
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| 86 | printf("%s: cannot bind port number %d \n", |
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| 87 | argv[0], SERVER_PORT); |
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| 88 | exit(1); |
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| 89 | } |
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| 90 | |||
| 91 | signal(SIGINT, close_and_exit); |
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| 92 | |||
| 93 | while(1) { |
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| 94 | |||
| 95 | printf("Wait packet...\n"); |
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| 96 | |||
| 97 | // receive message |
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| 98 | cliLen = sizeof(cliAddr); |
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| 99 | n = recvfrom(sd, msg, MAX_MSG, 0,(struct sockaddr *)&cliAddr, &cliLen); |
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| 100 | |||
| 101 | printf("Received %d, length %d(%d), %d tracer events.\n", |
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| 102 | pkt_head->pkt_number, n, pkt_head->size, pkt_head->events); |
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| 103 | |||
| 104 | if(n < 0) { |
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| 105 | printf("%s: cannot receive data \n",argv[0]); |
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| 106 | continue; |
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| 107 | } |
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| 108 | |||
| 109 | fwrite((void *)(msg+sizeof(struct tracer_udp_header)),n-sizeof(struct tracer_udp_header),1,output_file); |
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| 110 | |||
| 111 | } |
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| 112 | |||
| 113 | fclose(output_file); |
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| 114 | |||
| 115 | return 0; |
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| 116 | |||
| 117 | } |
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| 118 |