Re: kern/54435: reading TCP urgent data with MSG_OOB doesn't clear poll(2) status

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/54435; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/54435: reading TCP urgent data with MSG_OOB doesn't clear poll(2) status
Date: Sat, 3 Aug 2019 22:11:05 -0000 (UTC)

 uwe%stderr.spb.ru@localhost (Valery Ushakov) writes:
 
 > Except that this is not what happens, as far as I can tell.  Consider
 > the output from the test quoted in the PR:
 
 Without error handling:
 
 int mark;
 char oob;
 char buffer[BUFLEN];
 
 while (1) {
 	/* check if we reached urgent data */
 	ioctl(sock, SIOCATMARK, &mark);
 	if (mark)
 		break;
 	/* consume stream */
 	(void) read(sock, buffer, sizeof(buffer));
 }
 recv(sock, &oob, 1, MSG_OOB);
 
 -- 
 -- 
                                 Michael van Elst
 Internet: mlelstv%serpens.de@localhost
                                 "A potential Snark may lurk in every tree."