🚀 go-pugleaf

ULTRIX 4.2 on DECstations and VAXstations has a problem with
unbuffered input. The commands setbuf and setvbuf don't work correct.

The effect was:

We're running sendmail 5.65c8+ IDA on our site. All mails which are
coming in through BSMTP had an empty line in the middle of their
header.

After browsing through the src I realized, that the only difference
between BSMTP and SMTP is the unbuffered I/O of BSMTP. All our
experiments with various commands don't work.
Except of the full buffered I/O with buffer size of 1.

Our version of sendmail-src has RELEASEDATE 
        Wed Jun 26 10:11:39 CDT 1991
The SCCS Id from main.c says:
        @(#)main.c      5.31 (Berkeley) 7/20/90

Now! Here ist the simple patch for main.c:

*** main.c.orig	Mon Aug 10 13:35:23 1992
--- main.c	Tue Aug 11 09:05:43 1992
***************
*** 64,69 ****
--- 64,73 ----
  static thaw();
  #endif /* __STDC__ */
  
+ #ifdef ultrix
+  static char BsmtpCharBuf; /* One Char Buf for ULTRIX & BSMTP */
+ #endif
+ 
  /*
  **  SENDMAIL -- Post mail to a set of destinations.
  **
***************
*** 889,895 ****
  
  		/* have to run unbuffered or else will lose synchronization */
  		if (batched)
! 			setbuf(InChannel, (char *) NULL);
  		smtp(batched);
  	}
  #endif /* SMTP */
--- 893,903 ----
  
  		/* have to run unbuffered or else will lose synchronization */
  		if (batched)
! #ifdef ultrix
! 			setvbuf(InChannel, (char *) &BsmtpCharBuf , _IOFBF, sizeof(BsmtpCharBuf));
! #else
! 			setbuf(InChannel, (char *) NULL); 
! #endif
  		smtp(batched);
  	}
  #endif /* SMTP */
 

It would be great to hear from other people about this problem

                peter




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      ____  ____     | eMail: Peter.Pflaeging@magwien.gv.at
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