boolean MicroAPRS::decode_posit(char *packet, char **pcall, char *ptype, char **pposit, long *plon, long *plat, char **pcomment, char **pmsgTo, char **pmsg, char *pmsgID) {
char *callsignBegin = packet+5;
*callsignBegin++ = 0;
char *callsignEnd = strchr(callsignBegin, ']');
if (callsignEnd == NULL || callsignEnd-callsignBegin > 16)
return false;
*callsignEnd = 0;
char *call = callsignBegin;
char *destination = callsignEnd+8;
char *payload_begin = strchr(destination, ':')+1;
if (payload_begin == NULL)
return false;
*payload_begin++ = 0;
// Type is !, =, @, /, ', `.
// We only decode positions.
char type = *payload_begin;
payload_begin++;
*pcall = call;
*ptype = type;
char *posit = payload_begin;
{
if (type == '/' || type == '@') {
// no compression, but starts with time
// advanced past type and fall through to pretend '/' and '@' are just '!'
// advance past "195537h" or '052139z'
posit += 6;
// call N5CV packet type / 3721.40N/12204.64W
posit++;
posit[19] = 0;
type = '!';
}
if (type == '`' || type == '\'') {
// MIC-E compression
char *positEnd = posit+8;
if (posit[12] == '}'){
positEnd = posit+13;
}
char *comment = positEnd++;
//*positEnd++ = 0;
*pcomment = comment;
if (! decode_mic_e(destination, posit, plat, plon))
return false;
} else if (type == ':') {
//Message
char *msgToEnd = strchr(payload_begin, ':');
*msgToEnd++ = 0;
char *msgTo = payload_begin;
char *msgEnd = strchr(msgToEnd, '{');
char *msg = msgToEnd++;
*msgEnd++ = 0;
char msgID = *msgEnd++;
*pmsgTo = msgTo;
*pmsg = msg;
*pmsgID = msgID;
} else if (type == '!' || type == '=') {
// No compression or base91 compression
// call KC6SSM-5 packet type ! 3754.15NI12216.92W&
// call N6MON-9 packet type ! 3741.84N/12202.85W
// call KC6SSM-9 packet type ! 3739.29N/12205.34W>
// either !/ or !\ and 12 more characters
// or ![0-9] and 17 more characters
// if there is a space that terminates it
// otherwise terminate at 18 chars or eol, whichever is first
// terminated by space or EOL (length "3741.84N/12202.85W")
char sym1 = *posit;
char sym2 = ' ';
char *positEnd = strchr(posit, ' ');
char *comment = positEnd+1;
//*positEnd++ = 0;
*pcomment = comment;
if (sym1 == '/' || sym1 == '\\') {
// Base91 Compressed
posit[13] = 0;
decode91(posit, plat, plon, &sym2);
} else if (posit[1] >= '0' && posit[1] <= '9') {
posit[18] = 0;
decode_latlon(posit, plat, plon, &sym2);
} else {
return false;
}
} else if (type == '>' ) {
// Check for status type
// Everything after > is a comment
// e.g. >SVTrackR v1.0 5.24V S:9 B:0.51 U:21.32 Seq:70
char *comment = posit;
*pcomment = comment;
} else {
return false;
}
}
*pposit = posit;
return true;
}
void conversor(char opt1, char opt2, char *a_entrada, char *a_saida){
switch (opt1) {
// Ajuda.
case 'h':
printf("%s", help);
break;
// Codificar.
case '1': case 'e':
switch (opt2) {
// Base 62.
case '2':
encode62(a_entrada, a_saida);
printf("\nCodificado com Sucesso!\n\n");
break;
// Base 64.
case '4':
encode64(a_entrada, a_saida);
printf("\nCodificado com Sucesso!\n\n");
break;
// Base 85.
case '5':
encode85(a_entrada, a_saida);
printf("\nCodificado com Sucesso!\n\n");
break;
// Base 91.
case '1':
encode91(a_entrada, a_saida);
printf("\nCodificado com Sucesso!\n\n");
break;
default:
printf("%s", err[1]);
break;
}
break;
// Decodificar.
case '2': case 'd':
switch (opt2) {
// Base 62.
case '2':
decode62(a_entrada, a_saida);
printf("\nDecodificado com sucesso!\n\n");
break;
// Base 64.
case '4':
decode64(a_entrada, a_saida);
printf("\nDecodificado com sucesso!\n\n");
break;
// Base 85.
case '5':
decode85(a_entrada, a_saida);
printf("\nDecodificado com sucesso!\n\n");
break;
// Base 91.
case '1':
decode91(a_entrada, a_saida);
printf("\nDecodificado com sucesso!\n\n");
break;
default:
printf("%s", err[1]);
break;
}
break;
default:
printf("%s", err[0]);
break;
}
}
