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examples:rpl_udp removed the limit of 5 characters as payload size

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This commit is contained in:
BytesGalore 2015-03-30 10:40:22 +02:00
parent dbd4475bfe
commit b9e5c94a3d
1 changed files with 10 additions and 6 deletions
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16
examples/rpl_udp/udp.c
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@ -102,17 +102,21 @@ int udp_send(int argc, char **argv)
ipv6_addr_t ipaddr;
int bytes_sent;
int address;
char text[5];
if (argc != 3) {
printf("usage: send <addr> <text>\n");
return 1;
}
address = atoi(argv[1]);
/* max payload size = MTU - MAC - AES - IPV6_HDR_LEN - UDP_HDR_LEN
* 33 = 127 - 25 - 21 - 40 - 8
*/
if (strlen(argv[2]) > 32) {
puts("<text> is too large to be sent (max. 33 characters).");
return 1;
}
strncpy(text, argv[2], sizeof(text));
text[sizeof(text) - 1] = 0;
address = atoi(argv[1]);
sock = socket_base_socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
@ -134,8 +138,8 @@ int udp_send(int argc, char **argv)
memcpy(&sa.sin6_addr, &ipaddr, 16);
sa.sin6_port = HTONS(SERVER_PORT);
bytes_sent = socket_base_sendto(sock, (char *)text,
strlen(text) + 1, 0, &sa,
bytes_sent = socket_base_sendto(sock, argv[2],
strlen(argv[2]), 0, &sa,
sizeof(sa));
if (bytes_sent < 0) {