On Fri, Aug 21, 2009 at 02:18:47PM +0200, Werner Fink wrote:
> On Wed, Aug 19, 2009 at 11:08:33PM +0200, Roland Mainz wrote:
> >
> > Hi!
> >
> > ----
> >
> > The following test should print two "PIPED" lines to stderr when the
> > SIGPIPE signal occurs:
> > -- snip --
> > $ ksh93 -c 'g="false" ; trap "print -u2 PIPED ; \$g && exit 0 ; g=true"
> > PIPE ; while true ; do echo hello ; done' | head
> > -- snip --
>
> I can redo this if I use a tcsh as interactive shell but not with
> an interactive bash nor interactive ksh.
I'm using now the attachted patch as workaround.
Werner
--
"Having a smoking section in a restaurant is like having
a peeing section in a swimming pool." -- Edward Burr
--- src/cmd/ksh93/sh/fault.c
+++ src/cmd/ksh93/sh/fault.c 2009-08-24 15:52:21.770401660 +0200
@@ -413,6 +413,20 @@ void sh_chktrap(void)
sh.sigflag[sig] &= ~SH_SIGTRAP;
if(trap=sh.st.trapcom[sig])
{
+ if (sig==SIGPIPE) {
+ int fd;
+ sh.lastsig=SIGPIPE;
+ for(fd = 0; fd < sh.lim.open_max; fd++)
+ {
+ if (sh.fdstatus[fd] == IOCLOSE)
+ continue;
+ if ((sh.fdstatus[fd]&IOWRITE) == 0)
+ continue;
+ if (sferror(sh.sftable[fd]) == 0)
+ continue;
+ sh_close(fd);
+ }
+ }
sh.oldexit = SH_EXITSIG|sig;
sh_trap(trap,0);
}
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