From cse.psu.edu!9fans-outgoing-owner Mon Dec 11 15:44:11 1995 Received: from psuvax1.cse.psu.edu ([130.203.1.6]) by cannon.ecf.toronto.edu with SMTP id <9696>; Mon, 11 Dec 1995 15:44:01 -0500 Received: by psuvax1.cse.psu.edu id <34096>; Mon, 11 Dec 1995 14:58:58 -0500 Received: from plan9.cs.york.ac.uk ([144.32.33.120]) by psuvax1.cse.psu.edu with SMTP id <34095>; Mon, 11 Dec 1995 14:15:44 -0500 From: forsyth@plan9.cs.york.ac.uk To: 9fans@cse.psu.edu Date: Mon, 11 Dec 1995 14:10:18 -0500 subject: APE collides in select rendezvous Message-Id: <95Dec11.141544est.34095@psuvax1.cse.psu.edu> Sender: owner-9fans@cse.psu.edu Precedence: bulk Reply-To: 9fans@cse.psu.edu Status: RO vortex% diff old /sys/src/ape/lib/ap/plan9/_buf.c 59c59 < _RFORK(RFREND); --- > _RFORK(RFNAMEG); /* ideally, RFREND */ RFREND is defined in ap/plan9's sys9.h, but isn't in plan 9 as distributed RFNAMEG will just have to do. the symptom is that an APE program that uses select but also forks and execs another program using select will end up with one side or the other, or both, being confused when the rendezvous calls clash. From cse.psu.edu!9fans-outgoing-owner Thu Mar 7 15:09:38 1996 Received: from colossus.cse.psu.edu ([130.203.1.2]) by cannon.ecf.toronto.edu with SMTP id <9986>; Thu, 7 Mar 1996 15:09:33 -0500 Received: by colossus.cse.psu.edu id <78705>; Thu, 7 Mar 1996 15:05:11 -0500 Received: from galapagos.cse.psu.edu ([130.203.2.12]) by colossus.cse.psu.edu with SMTP id <78712>; Thu, 7 Mar 1996 15:03:56 -0500 Received: by galapagos.cse.psu.edu id <12686>; Thu, 7 Mar 1996 14:57:17 -0500 From: Scott Schwartz To: 9fans@cse.psu.edu Subject: ape, gettimeofday.c Message-Id: <96Mar7.145717est.12686@galapagos.cse.psu.edu> Date: Thu, 7 Mar 1996 14:57:08 -0500 Sender: owner-9fans@cse.psu.edu Precedence: bulk Reply-To: 9fans@cse.psu.edu Status: RO Pgp is much happier if gettimeofday returns something for the usec field. Here's a version that tries to do that. #include #include #include #include #include #include #include static int ms(void) { char b[20]; static int f = -1; /* XXX - should use native plan9 syscalls herein */ memset(b, 0, sizeof(b)); if (f < 0) { f = open("/dev/msec", O_RDONLY); fcntl(f, FD_CLOEXEC, 1); } if (f >= 0) { lseek(f, 0, 0); read(f, b, sizeof(b)); } return atol(b) % 1000; } int gettimeofday(struct timeval *tp, struct timezone *tzp) { tp->tv_sec = time(0); tp->tv_usec = ms() * 1000; if(tzp) { tzp->tz_minuteswest = 240; tzp->tz_dsttime = 1; } return 0; } From cse.psu.edu!owner-9fans Sun Aug 4 17:20:47 1996 Received: from cse.psu.edu ([130.203.3.50]) by cannon.ecf.toronto.edu with SMTP id <1247>; Sun, 4 Aug 1996 17:20:34 -0400 Received: from localhost (majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) with SMTP id RAA01610; Sun, 4 Aug 1996 17:20:46 -0400 (EDT) Received: by claven.cse.psu.edu (bulk_mailer v1.5); Sun, 4 Aug 1996 17:15:00 -0400 Received: (from majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) id RAA01549 for 9fans-outgoing; Sun, 4 Aug 1996 17:14:54 -0400 (EDT) X-Authentication-Warning: claven.cse.psu.edu: majordom set sender to owner-9fans using -f Received: from angora.cse.psu.edu (nb3ppp35.cac.psu.edu [146.186.17.35]) by cse.psu.edu (8.7.5/8.7.3) with SMTP id RAA01544 for <9fans@cse.psu.edu>; Sun, 4 Aug 1996 17:14:47 -0400 (EDT) From: scott@angora.cse.psu.edu Message-Id: <199608042114.RAA01544@cse.psu.edu> To: 9fans@cse.psu.edu Date: Sun, 4 Aug 1996 17:00:35 -0400 Sender: owner-9fans@cse.psu.edu Reply-To: 9fans@cse.psu.edu Precedence: bulk Status: RO I've noticed that APE has some byte order problems in the bsd compatability code. The bsd interface uses network order exclusively, while the ape code sometimes assumed host order. There have already been some updates on this topic: enclosed are a few additional changes. One problem that isn't fixed is that gethostbyaddr calls gethostbyname with the ascii dotted-quad form of the network address. That's a good idea, except that the connection server only asks dns to return ip addresses, even though it returns the whole record if it came from ndb. gethostbyname could be modified to get the answer, but I think cs is a more appropriate place for it. diff inet_addr.c /n/cd/sys/src/ape/lib/bsd/inet_addr.c 50d49 < x = htonl(x); diff inet_ntoa.c /n/cd/sys/src/ape/lib/bsd/inet_ntoa.c 19c19 < x = ntohl(in.s_addr); --- > x = in.s_addr; diff gethostbyaddr.c /n/cd/sys/src/ape/lib/bsd/gethostbyaddr.c 23c23,24 < memcpy(&x.s_addr, addr, sizeof(x.s_addr)); --- > x.s_addr = (addr[0]<<24)|(addr[1]<<16)|(addr[2]<<8)|addr[3]; > diff gethostbyname.c /n/cd/sys/src/ape/lib/bsd/gethostbyname.c 98d97 < x = ntohl(x); From cse.psu.edu!owner-9fans Mon Sep 2 00:33:10 1996 Received: from cse.psu.edu ([130.203.3.50]) by cannon.ecf.toronto.edu with SMTP id <1015>; Mon, 2 Sep 1996 00:33:08 -0400 Received: from localhost (majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) with SMTP id AAA08538; Mon, 2 Sep 1996 00:24:54 -0400 (EDT) Received: by claven.cse.psu.edu (bulk_mailer v1.5); Mon, 2 Sep 1996 00:21:48 -0400 Received: (from majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) id AAA08495 for 9fans-outgoing; Mon, 2 Sep 1996 00:21:40 -0400 (EDT) X-Authentication-Warning: claven.cse.psu.edu: majordom set sender to owner-9fans using -f Received: from angora.cse.psu.edu (nb5ppp164.cac.psu.edu [146.186.17.164]) by cse.psu.edu (8.7.5/8.7.3) with SMTP id AAA08488 for <9fans@cse.psu.edu>; Mon, 2 Sep 1996 00:21:28 -0400 (EDT) From: scott@angora.cse.psu.edu Message-Id: <199609020421.AAA08488@cse.psu.edu> To: 9fans@cse.psu.edu Date: Mon, 2 Sep 1996 00:16:19 -0400 Sender: owner-9fans@cse.psu.edu Reply-To: 9fans@cse.psu.edu Precedence: bulk Status: RO One more ape bug... A common unix idiom is bind followed by listen. In ape, bind sets the socket's port, and but listen also tries to do that. To avoid an error in that case, I propose listen.c:139 be modified as follows: if(lip->sin_port >= 0) { if (write(cfd, "bind 0", 6) < 0) { errno = EGREG; close(cfd); return -1; } sprintf(msg, "announce %d", ntohs(lip->sin_port)); From cse.psu.edu!owner-9fans Thu Sep 5 03:11:52 1996 Received: from cse.psu.edu ([130.203.3.50]) by cannon.ecf.toronto.edu with SMTP id <1014>; Thu, 5 Sep 1996 03:11:47 -0400 Received: from localhost (majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) with SMTP id DAA22067; Thu, 5 Sep 1996 03:11:20 -0400 (EDT) Received: by claven.cse.psu.edu (bulk_mailer v1.5); Thu, 5 Sep 1996 03:10:34 -0400 Received: (from majordom@localhost) by cse.psu.edu (8.7.5/8.7.3) id DAA22019 for 9fans-outgoing; Thu, 5 Sep 1996 03:10:27 -0400 (EDT) X-Authentication-Warning: claven.cse.psu.edu: majordom set sender to owner-9fans using -f Received: from galapagos.cse.psu.edu (root@galapagos.cse.psu.edu [130.203.2.12]) by cse.psu.edu (8.7.5/8.7.3) with SMTP id DAA22015 for <9fans@cse.psu.edu>; Thu, 5 Sep 1996 03:10:22 -0400 (EDT) Received: by galapagos.cse.psu.edu id <12690>; Thu, 5 Sep 1996 03:09:41 -0400 From: Scott Schwartz To: 9fans@cse.psu.edu Subject: ape rename bug Message-Id: <96Sep5.030941edt.12690@galapagos.cse.psu.edu> Date: Thu, 5 Sep 1996 03:09:37 -0400 Sender: owner-9fans@cse.psu.edu Reply-To: 9fans@cse.psu.edu Precedence: bulk Status: RO In APE, if rename has to copy, it never deletes the source file. In that case, something like t