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#include <u.h>
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#include <libc.h>
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#include <ip.h>
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#include <thread.h>
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#include "netbios.h"
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static char *
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opname(int opcode)
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{
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	switch (opcode) {
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	case NbnsOpQuery: return "query";
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	case NbnsOpRegistration: return "registration";
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	case NbnsOpRelease: return "release";
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	case NbnsOpWack: return "wack";
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	case NbnsOpRefresh: return "refresh";
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	default:
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		return "???";
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	}
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}
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void
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nbnsdumpname(NbName name)
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{
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	int x;
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	for (x = 0; x < NbNameLen - 1; x++) {
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		if (name[x] == ' ')
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			break;
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		print("%c", tolower(name[x]));
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	}
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	print("\\x%.2ux", name[NbNameLen - 1]);
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}
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void
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nbnsdumpmessagequestion(NbnsMessageQuestion *q)
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{
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	print("question: ");
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	nbnsdumpname(q->name);
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	switch (q->type) {
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	case NbnsQuestionTypeNb: print(" NB");	break;
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	case NbnsQuestionTypeNbStat: print(" NBSTAT"); break;
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	default: print(" ???");
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	}
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	switch (q->class) {
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	case NbnsQuestionClassIn: print(" IN"); break;
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	default: print(" ???");
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	}
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	print("\n");
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}
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void
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nbnsdumpmessageresource(NbnsMessageResource *r, char *name)
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{
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	print("%s: ", name);
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	nbnsdumpname(r->name);
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	switch (r->type) {
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	case NbnsResourceTypeA: print(" A");	break;
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	case NbnsResourceTypeNs: print(" NS");	break;
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	case NbnsResourceTypeNull: print(" NULL");	break;
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	case NbnsResourceTypeNb: print(" NB");	break;
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	case NbnsResourceTypeNbStat: print(" NBSTAT"); break;
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	default: print(" ???");
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	}
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	switch (r->class) {
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	case NbnsResourceClassIn: print(" IN"); break;
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	default: print(" ???");
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	}
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	print(" ttl: %lud", r->ttl);
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	if (r->rdlength) {
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		int i;
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		print(" rdata: ");
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		for (i = 0; i < r->rdlength; i++)
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			print("%.2ux", r->rdata[i]);
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	}
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	print("\n");
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}
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void
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nbnsdumpmessage(NbnsMessage *s)
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{
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	NbnsMessageQuestion *q;
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	NbnsMessageResource *r;
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	print("0x%.4ux %s %s (%d)",
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		s->id, opname(s->opcode), s->response ? "response" : "request", s->opcode);
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	if (s->broadcast)
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		print(" B");
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	if (s->recursionavailable)
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		print(" RA");
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	if (s->recursiondesired)
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		print(" RD");
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	if (s->truncation)
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		print(" TC");
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	if (s->authoritativeanswer)
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		print(" AA");
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	if (s->response)
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		print(" rcode %d", s->rcode);
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	print("\n");
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	for (q = s->q; q; q = q->next)
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		nbnsdumpmessagequestion(q);
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	for (r = s->an; r; r = r->next)
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		nbnsdumpmessageresource(r, "answer");
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	for (r = s->ns; r; r = r->next)
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		nbnsdumpmessageresource(r, "ns");
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	for (r = s->ar; r; r = r->next)
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		nbnsdumpmessageresource(r, "additional");
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}
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void
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nbdumpdata(void *ap, long n)
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{
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	uchar *p = ap;
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	long i;
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	i = 0;
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	while (i < n) {
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		int l = n - i < 16 ? n - i : 16;
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		int b;
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		print("0x%.4lux  ", i);
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		for (b = 0; b < l; b += 2) {
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			print(" %.2ux", p[i + b]);
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			if (b < l - 1)
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				print("%.2ux", p[i + b + 1]);
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			else
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				print("  ");
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		}
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		while (b < 16) {
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			print("     ");
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			b++;
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		}
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		print("        ");
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		for (b = 0; b < l; b++)
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			if (p[i + b] >= ' ' && p[i + b] <= '~')
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				print("%c", p[i + b]);
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			else
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				print(".");
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		print("\n");
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		i += l;
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	}
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}