ref: b4c916efce5e1476d9ac7079ca8ffec54fdcbce2
dir: /sys/src/libc/9sys/fcallfmt.c/
#include <u.h>
#include <libc.h>
#include <fcall.h>
static uint dumpsome(char*, char*, char*, long);
static void fdirconv(char*, char*, Dir*);
static char *qidtype(char*, uchar);
#define QIDFMT "(%.16llux %lud %s)"
int
fcallfmt(Fmt *fmt)
{
Fcall *f;
int fid, type, tag, i;
char buf[512], tmp[200];
char *p, *e;
Dir *d;
Qid *q;
e = buf+sizeof(buf);
f = va_arg(fmt->args, Fcall*);
type = f->type;
fid = f->fid;
tag = f->tag;
switch(type){
case Tversion: /* 100 */
seprint(buf, e, "Tversion tag %ud msize %ud version '%s'", tag, f->msize, f->version);
break;
case Rversion:
seprint(buf, e, "Rversion tag %ud msize %ud version '%s'", tag, f->msize, f->version);
break;
case Tauth: /* 102 */
seprint(buf, e, "Tauth tag %ud afid %d uname %s aname %s", tag,
f->afid, f->uname, f->aname);
break;
case Rauth:
seprint(buf, e, "Rauth tag %ud qid " QIDFMT, tag,
f->aqid.path, f->aqid.vers, qidtype(tmp, f->aqid.type));
break;
case Tattach: /* 104 */
seprint(buf, e, "Tattach tag %ud fid %d afid %d uname %s aname %s", tag,
fid, f->afid, f->uname, f->aname);
break;
case Rattach:
seprint(buf, e, "Rattach tag %ud qid " QIDFMT, tag,
f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type));
break;
case Rerror: /* 107; 106 (Terror) illegal */
seprint(buf, e, "Rerror tag %ud ename %s", tag, f->ename);
break;
case Tflush: /* 108 */
seprint(buf, e, "Tflush tag %ud oldtag %ud", tag, f->oldtag);
break;
case Rflush:
seprint(buf, e, "Rflush tag %ud", tag);
break;
case Twalk: /* 110 */
p = seprint(buf, e, "Twalk tag %ud fid %d newfid %d nwname %d ", tag, fid, f->newfid, f->nwname);
if(f->nwname <= MAXWELEM)
for(i=0; i<f->nwname; i++)
p = seprint(p, e, "%d:%s ", i, f->wname[i]);
break;
case Rwalk:
p = seprint(buf, e, "Rwalk tag %ud nwqid %ud ", tag, f->nwqid);
if(f->nwqid <= MAXWELEM)
for(i=0; i<f->nwqid; i++){
q = &f->wqid[i];
p = seprint(p, e, "%d:" QIDFMT " ", i,
q->path, q->vers, qidtype(tmp, q->type));
}
break;
case Topen: /* 112 */
seprint(buf, e, "Topen tag %ud fid %ud mode %d", tag, fid, f->mode);
break;
case Ropen:
seprint(buf, e, "Ropen tag %ud qid " QIDFMT " iounit %ud ", tag,
f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type), f->iounit);
break;
case Tcreate: /* 114 */
seprint(buf, e, "Tcreate tag %ud fid %ud name %s perm 0%luo mode %d", tag, fid, f->name, (ulong)f->perm, f->mode);
break;
case Rcreate:
seprint(buf, e, "Rcreate tag %ud qid " QIDFMT " iounit %ud ", tag,
f->qid.path, f->qid.vers, qidtype(tmp, f->qid.type), f->iounit);
break;
case Tread: /* 116 */
seprint(buf, e, "Tread tag %ud fid %d offset %lld count %ud",
tag, fid, f->offset, f->count);
break;
case Rread:
p = seprint(buf, e, "Rread tag %ud count %ud ", tag, f->count);
dumpsome(p, e, f->data, f->count);
break;
case Twrite: /* 118 */
p = seprint(buf, e, "Twrite tag %ud fid %d offset %lld count %ud ",
tag, fid, f->offset, f->count);
dumpsome(p, e, f->data, f->count);
break;
case Rwrite:
seprint(buf, e, "Rwrite tag %ud count %ud", tag, f->count);
break;
case Tclunk: /* 120 */
seprint(buf, e, "Tclunk tag %ud fid %ud", tag, fid);
break;
case Rclunk:
seprint(buf, e, "Rclunk tag %ud", tag);
break;
case Tremove: /* 122 */
seprint(buf, e, "Tremove tag %ud fid %ud", tag, fid);
break;
case Rremove:
seprint(buf, e, "Rremove tag %ud", tag);
break;
case Tstat: /* 124 */
seprint(buf, e, "Tstat tag %ud fid %ud", tag, fid);
break;
case Rstat:
p = seprint(buf, e, "Rstat tag %ud ", tag);
if(f->nstat > sizeof tmp)
seprint(p, e, " stat(%d bytes)", f->nstat);
else{
d = (Dir*)tmp;
convM2D(f->stat, f->nstat, d, (char*)(d+1));
seprint(p, e, " stat ");
fdirconv(p+6, e, d);
}
break;
case Twstat: /* 126 */
p = seprint(buf, e, "Twstat tag %ud fid %ud", tag, fid);
if(f->nstat > sizeof tmp)
seprint(p, e, " stat(%d bytes)", f->nstat);
else{
d = (Dir*)tmp;
convM2D(f->stat, f->nstat, d, (char*)(d+1));
seprint(p, e, " stat ");
fdirconv(p+6, e, d);
}
break;
case Rwstat:
seprint(buf, e, "Rwstat tag %ud", tag);
break;
default:
seprint(buf, e, "unknown type %d", type);
}
return fmtstrcpy(fmt, buf);
}
static char*
qidtype(char *s, uchar t)
{
char *p;
p = s;
if(t & QTDIR)
*p++ = 'd';
if(t & QTAPPEND)
*p++ = 'a';
if(t & QTEXCL)
*p++ = 'l';
if(t & QTAUTH)
*p++ = 'A';
*p = '\0';
return s;
}
int
dirfmt(Fmt *fmt)
{
char buf[160];
fdirconv(buf, buf+sizeof buf, va_arg(fmt->args, Dir*));
return fmtstrcpy(fmt, buf);
}
static void
fdirconv(char *buf, char *e, Dir *d)
{
char tmp[16];
seprint(buf, e, "'%s' '%s' '%s' '%s' "
"q " QIDFMT " m %#luo "
"at %ld mt %ld l %lld "
"t %d d %d",
d->name, d->uid, d->gid, d->muid,
d->qid.path, d->qid.vers, qidtype(tmp, d->qid.type), d->mode,
d->atime, d->mtime, d->length,
d->type, d->dev);
}
/*
* dump out count (or DUMPL, if count is bigger) bytes from
* buf to ans, as a string if they are all printable,
* else as a series of hex bytes
*/
#define DUMPL 64
static uint
dumpsome(char *ans, char *e, char *buf, long count)
{
int i, printable;
char *p;
if(buf == nil){
seprint(ans, e, "<no data>");
return strlen(ans);
}
printable = 1;
if(count > DUMPL)
count = DUMPL;
for(i=0; i<count && printable; i++)
if((buf[i]<32 && buf[i] !='\n' && buf[i] !='\t') || (uchar)buf[i]>127)
printable = 0;
p = ans;
*p++ = '\'';
if(printable){
if(count > e-p-2)
count = e-p-2;
memmove(p, buf, count);
p += count;
}else{
if(2*count > e-p-2)
count = (e-p-2)/2;
for(i=0; i<count; i++){
if(i>0 && i%4==0)
*p++ = ' ';
sprint(p, "%2.2ux", (uchar)buf[i]);
p += 2;
}
}
*p++ = '\'';
*p = 0;
return p - ans;
}