1993/1122/port/devmnt.c (diff list | history)

1993/1105/sys/src/9/port/devmnt.c:53,58 – 1993/1122/sys/src/9/port/devmnt.c:53,59 (short | long | prev | next)
1993/0501		void mclose(Mnt*, Chan*); void mntrecover(Mnt*, Mntrpc*); Chan* mntchan(void);
1993/1122		int mntrpclen(char*, int);
1990/0227
1991/0911		enum
1990/0303		{
1993/1105/sys/src/9/port/devmnt.c:680,686 – 1993/1122/sys/src/9/port/devmnt.c:681,687
1990/0604		}
1991/0911		r->reply.type = 0; r->reply.tag = 0;
1992/0825		n = (*devtab[m->c->type].read)(m->c, r->rpc, MAXRPC, 0);
1993/1122		n = devtab[m->c->type].read(m->c, r->rpc, MAXRPC, 0);
1991/0911		poperror();
1993/1103		if(n == 0)
1991/0911		continue;
1993/1105/sys/src/9/port/devmnt.c:1012,1015 – 1993/1122/sys/src/9/port/devmnt.c:1013,1097
1993/0501		wakeup(&r->r); unlock(m);
1993/1122		} static uchar msglen[256] = { [Tnop] 3, [Rnop] 3, [Tsession] 3+CHALLEN, [Rsession] 3+NAMELEN+DOMLEN+CHALLEN, [Terror] 0, [Rerror] 67, [Tflush] 5, [Rflush] 3, [Tattach] 5+2*NAMELEN+TICKETLEN+AUTHENTLEN, [Rattach] 13+AUTHENTLEN, [Tclone] 7, [Rclone] 5, [Twalk] 33, [Rwalk] 13, [Topen] 6, [Ropen] 13, [Tcreate] 38, [Rcreate] 13, [Tread] 15, [Rread] 8, [Twrite] 16, [Rwrite] 7, [Tclunk] 5, [Rclunk] 5, [Tremove] 5, [Rremove] 5, [Tstat] 5, [Rstat] 121, [Twstat] 121, [Rwstat] 5, [Tclwalk] 35, [Rclwalk] 13, }; enum { Twritehdr = 16, /* Min bytes for Twrite */ Rreadhdr = 8, /* Min bytes for Rread */ Twritecnt = 13, /* Offset in byte stream of write count */ Rreadcnt = 5, /* Offset for Readcnt */ }; int mntrpclen(char *d, int n) { char t; int len, off; if(n < 1) return 0; t = d[0]; switch(t) { /* This is the type */ default: len = msglen[t]; if(len == 0) /* Illegal type so consume */ return n; if(n < len) return 0; return len; case Twrite: /* Fmt: TGGFFOOOOOOOOCC */ len = Twritehdr; /* T = type, G = tag, F = fid */ off = Twritecnt; /* O = offset, C = count */ break; case Rread: /* Fmt: TGGFFCC */ len = Rreadhdr; off = Rreadcnt; break; } if(n < off+2) return 0; len += d[off]+(d[off+1]<<8); if(n < len) return 0; return len;
1991/0911		}