Proxim 7910 Guida Utente Scaricare il pdf (Pagina 105)

55 name.sin_family= AF_INET;

56 /* htons() converts a 16-bit integer from host to network byte order */

57 name.sin_port= htons(atoi(argv[2]));

59 /* Construct message, including Serial Adapter header. */

60 buf[0]= DATA1;

61 buf[3]= 0x1b;

62 dataLength= strlen(DATA);

63 networkDataLength= htons(dataLength);

64 memcpy(&buf[1], (char *)&networkDataLength, sizeof(short));

65 strcpy(&buf[4], DATA);

66 printf(“%s\n”, &buf[4]);

68 /* Repeatedly send message to serial adapter */

69 for(i=0; i< 10; i++)

70 {

71 sleep(1);

72 /* Sendto() parameters:

73 1. Local socket which will handle the data.

74 2. Pointer to buffer containing data to be sent.

75 3. Number of bytes of data to be sent.

76 4. Flags (ex. MSG_OOB for TCP urgent data)

77 5. Destination IP address and port number.

78 6. Length of data structure containing destination

79 IP Address/port info.

80 */

81 if(sendto(sock, buf, dataLength+4, 0,

82 (struct sockaddr *)&name, sizeof(name)) < 0)

83 perror(“Sending datagram message”);

84 npackets++;

85 if (!(npackets % 1000))

86 printf(“%ld packets sent\n”, npackets);

87 }

88 close(sock);

89 exit(0);

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Proxim 7910 Guida Utente Pagina 105