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| 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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| 1322 | giacomo | 28 | #include <string.h> |
| 1293 | giacomo | 29 | |
| 30 | #define SERVER_PORT 20000 |
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| 31 | #define MAX_MSG 10000 |
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| 32 | |||
| 33 | struct tracer_udp_header { |
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| 34 | char id[12]; |
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| 35 | unsigned int pkt_number; |
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| 36 | unsigned int events; |
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| 37 | unsigned int size; |
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| 38 | }; |
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| 39 | |||
| 40 | FILE *output_file; |
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| 41 | |||
| 1304 | giacomo | 42 | int miss; |
| 43 | |||
| 1293 | giacomo | 44 | void close_and_exit() |
| 45 | { |
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| 46 | |||
| 47 | printf("Closing...\n"); |
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| 48 | |||
| 1304 | giacomo | 49 | if (miss == 1) printf("Possible error receiving packets !\n"); |
| 50 | |||
| 1293 | giacomo | 51 | fclose(output_file); |
| 52 | |||
| 53 | exit(0); |
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| 54 | |||
| 55 | } |
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| 56 | |||
| 57 | int main(int argc, char *argv[]) |
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| 58 | { |
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| 1304 | giacomo | 59 | int sd, rc, n, cliLen,count; |
| 1293 | giacomo | 60 | struct sockaddr_in cliAddr, servAddr; |
| 61 | char msg[MAX_MSG]; |
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| 62 | |||
| 63 | struct tracer_udp_header *pkt_head = (struct tracer_udp_header *)(msg); |
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| 64 | |||
| 65 | if (argc < 2) { |
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| 66 | printf("%s: Enter the output file name [%s filename]\n",argv[0],argv[0]); |
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| 67 | exit(1); |
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| 68 | } |
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| 69 | |||
| 70 | // socket creation |
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| 71 | sd = socket(AF_INET, SOCK_DGRAM, 0); |
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| 72 | if(sd < 0) { |
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| 73 | printf("%s: cannot open socket \n",argv[0]); |
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| 74 | exit(1); |
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| 75 | } |
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| 76 | |||
| 77 | output_file = fopen(argv[1],"w+b"); |
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| 78 | if (output_file == NULL) { |
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| 1294 | giacomo | 79 | printf("%s: Cannot open the file\n",argv[0]); |
| 1293 | giacomo | 80 | exit(1); |
| 81 | } |
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| 82 | |||
| 83 | // bind local server port |
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| 84 | servAddr.sin_family = AF_INET; |
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| 85 | |||
| 86 | servAddr.sin_addr.s_addr = htonl(INADDR_ANY); |
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| 87 | servAddr.sin_port = htons(SERVER_PORT); |
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| 88 | |||
| 89 | rc = bind (sd, (struct sockaddr *)&servAddr,sizeof(servAddr)); |
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| 90 | if(rc < 0) { |
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| 91 | printf("%s: cannot bind port number %d \n", |
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| 92 | argv[0], SERVER_PORT); |
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| 93 | exit(1); |
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| 94 | } |
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| 95 | |||
| 96 | signal(SIGINT, close_and_exit); |
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| 97 | |||
| 1304 | giacomo | 98 | count = 1; |
| 99 | miss = 0; |
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| 100 | |||
| 1293 | giacomo | 101 | while(1) { |
| 102 | |||
| 103 | printf("Wait packet...\n"); |
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| 104 | |||
| 105 | // receive message |
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| 106 | cliLen = sizeof(cliAddr); |
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| 107 | n = recvfrom(sd, msg, MAX_MSG, 0,(struct sockaddr *)&cliAddr, &cliLen); |
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| 108 | |||
| 1322 | giacomo | 109 | if (strncmp(pkt_head->id,"TRACER",6)) continue; |
| 110 | |||
| 1293 | giacomo | 111 | printf("Received %d, length %d(%d), %d tracer events.\n", |
| 112 | pkt_head->pkt_number, n, pkt_head->size, pkt_head->events); |
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| 113 | |||
| 1304 | giacomo | 114 | if (pkt_head->pkt_number != count) { |
| 115 | printf("Miss Packet !!!\n"); |
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| 116 | miss = 1; |
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| 117 | } |
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| 118 | |||
| 1322 | giacomo | 119 | if (n > 0) { |
| 1304 | giacomo | 120 | |
| 1322 | giacomo | 121 | count++; |
| 122 | |||
| 123 | fwrite((void *)(msg+sizeof(struct tracer_udp_header)),n-sizeof(struct tracer_udp_header),1,output_file); |
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| 124 | |||
| 1293 | giacomo | 125 | } |
| 126 | |||
| 127 | } |
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| 128 | |||
| 129 | fclose(output_file); |
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| 130 | |||
| 131 | return 0; |
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| 132 | |||
| 133 | } |
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| 134 |