MQTT client test with W5200 ethernet shield
Dependents: IBMIoTClientEthernetExample_W5200
Fork of W5500Interface by
Diff: DNSClient/dnsname.h
- Revision:
- 0:e11e8793c3ce
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DNSClient/dnsname.h Wed Aug 20 00:28:37 2014 +0000 @@ -0,0 +1,51 @@ +// dnsname.h 2013/8/27 +#pragma once +//#include <string> +#include "pico_string.h" +class dnsname { +public: + uint8_t *buf; + pico_string str; + dnsname(uint8_t *s) { + buf = s; + } + int decode(int pos) { + while(1) { + int len = buf[pos++]; + if (len == 0x00) { + break; + } + if ((len&0xc0) == 0xc0) { //compress + int offset = (len&0x3f)<<8|buf[pos]; + decode(offset); + return pos+1; + } + if (!str.empty()) { + str.append("."); + } + str.append((const char*)(buf+pos), len); + pos += len; + } + return pos; + } + + int encode(int pos, char* s) { + while(*s) { + char *f = strchr(s, '.'); + if (f == NULL) { + int len = strlen(s); + buf[pos++] = len; + memcpy(buf+pos, s, len); + pos += len; + break; + } + int len = f - s; + buf[pos++] = len; + memcpy(buf+pos, s, len); + s = f+1; + pos += len; + } + buf[pos++] = 0x00; + return pos; + } +};