On Sun, Jun 12, 2005 at 02:12:04PM -0700, Chuck Forsberg WA7KGX wrote:
> I don't know when, but the alarm system call no longer works
> properly. The following program works on Unix but not
> Linux FC4t3 or FC3. This is the mechanism rz/sz use for
> generating protocol timeouts.
It also doesn't work on RH 7.3.
But replacing longjmp by siglongjmp and setjmp by sigsetjmp(,1) makes it
work.
Notes from the manual page:
POSIX does not specify whether setjmp will save the signal
context. (In SYSV it will not. In BSD4.3 it will, and
there is a function _setjmp that will not.) If
you want to save signal masks, use sigsetjmp.
So it could be that you were depending on unspecified behaviour...
Regards,
Luciano Rocha
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lfr
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