FreeTDS Development Group

["Castellano, Nicholas" <Nicholas_Castellano AT acml.com>]

The code is handling SIGSEGV, not ignoring it.  It's perfectly legitimate
and portable to handle SIGSEGV as long as you either longjmp() back to a
saved state, or exit the process.

-----Original Message-----
From: bounce-freetds-145195 AT franklin.oit.unc.edu
[mailto:bounce-freetds-145195 AT franklin.oit.unc.edu] 
Sent: Thursday, August 29, 2002 12:25 PM
To: TDS Development Group
Subject: [freetds] RE: asprintf vasprintf


I don't understand why all this talk about SIGSEGV handlers.  From man 2
sigaction:

       According to POSIX, the behaviour of a  process  is  unde­
       fined after it ignores a SIGFPE, SIGILL, or SIGSEGV signal
       that was not generated by the kill() or the raise()  func­
       tions.  Integer division by zero has undefined result.  On
       some architectures  it  will  generate  a  SIGFPE  signal.
       (Also  dividing the most negative integer by -1 may gener­
       ate SIGFPE.)  Ignoring this signal might lead to  an  end­
       less loop.

Anything depending on handling SIGSEGV will be platform-dependent anyway.

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