60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
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#include <layer2/ham64.h>
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#include <logger.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <arpa/inet.h>
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int main(int argc, char **argv)
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{
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logger_init();
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if(argc < 2) {
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LOG(LVL_FATAL, "Not enough arguments!");
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LOG(LVL_FATAL, "");
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LOG(LVL_FATAL, "usage: %s <callsign>", argv[0]);
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return EXIT_FAILURE;
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}
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const char *callsign = argv[1];
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size_t len = strlen(callsign);
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if(len > 12) {
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LOG(LVL_ERR, "Call sign too long: %zu chars (allowed: 12)", len);
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return EXIT_FAILURE;
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}
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ham64_t ham64;
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size_t encoded_len = ham64_encode(callsign, &ham64);
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if(encoded_len == 0) {
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LOG(LVL_ERR, "Encoding the call sign failed.");
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return EXIT_FAILURE;
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}
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LOG(LVL_INFO, "Call sign encoded successfully: %zu words.", encoded_len);
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char formatted[HAM64_FMT_MAX_LEN];
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ham64_format(&ham64, formatted);
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printf("ham64: %s\n", formatted);
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// calculate IPv6 address
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struct in6_addr ipv6_addr;
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memset(&ipv6_addr, 0, sizeof(struct in6_addr));
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// fill the host part from the ham64 address. The bytes are filled in
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// reverse order to make the „readable“ IPv6 address as short as possible.
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for(uint8_t i = 0; i < ham64.length; i++) {
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ipv6_addr.s6_addr[15 - 2*i] = (ham64.addr[i] >> 8) & 0xFF;
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ipv6_addr.s6_addr[14 - 2*i] = (ham64.addr[i] >> 0) & 0xFF;
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}
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// print the address
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char ipv6_str[INET6_ADDRSTRLEN];
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inet_ntop(AF_INET6, &ipv6_addr, ipv6_str, sizeof(ipv6_str));
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printf("ipv6: %s\n", ipv6_str);
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}
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