ref: a847d7a53d64b1f7d11eb3b969c2684ea0aa399b
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; }