Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <oventi.h>
#include "session.h"

void vtDumpSome(Packet*);

void
vtDebug(VtSession *s, char *fmt, ...)
{
        va_list arg;

        if(!s->debug)
                return;

        va_start(arg, fmt);
        vfprint(2, fmt, arg);
        va_end(arg);
}

void
vtDebugMesg(VtSession *z, Packet *p, char *s)
{
        int op;
        int tid;
        int n;
        uchar buf[100], *b;


        if(!z->debug)
                return;
        n = packetSize(p);
        if(n < 2) {
                fprint(2, "runt packet%s", s);
                return;
        }
        b = packetPeek(p, buf, 0, 2);
        op = b[0];
        tid = b[1];

        fprint(2, "%c%d[%d] %d", ((op&1)==0)?'R':'Q', op, tid, n);
        vtDumpSome(p);
        fprint(2, "%s", s);
}

void
vtDumpSome(Packet *pkt)
{
        int printable;
        int i, n;
        char buf[200], *q, *eq;
        uchar data[32], *p;

        n = packetSize(pkt);
        printable = 1;
        q = buf;
        eq = buf + sizeof(buf);
        q = seprint(q, eq, "(%d) '", n);

        if(n > sizeof(data))
                n = sizeof(data);
        p = packetPeek(pkt, data, 0, n);
        for(i=0; i<n && printable; i++)
                if((p[i]<32 && p[i] !='\n' && p[i] !='\t') || p[i]>127)
                                printable = 0;
        if(printable) {
                for(i=0; i<n; i++)
                        q = seprint(q, eq, "%c", p[i]);
        } else {
                for(i=0; i<n; i++) {
                        if(i>0 && i%4==0)
                                q = seprint(q, eq, " ");
                        q = seprint(q, eq, "%.2X", p[i]);
                }
        }
        seprint(q, eq, "'");
        fprint(2, "%s", buf);
}