zpty on HP/UX

[Oliver Kiddle <okiddle@yahoo.co.uk>]

I've got zpty to work on HP/UX. I looked at pts(7) and tried the example
in there.

Basically it needs the ioctl streams stuff but not the ttcompat bit. See
the patch below to see what needed removing. Note that this isn't a patch
I intend to apply but merely in indication of the changes. We need to
sort out the #if stuff.

We can put the ttcompat ioctl inside a #ifndef __hpux but the __SVR4
part is going to cause us problems. What systems was that added to cover?

Oliver

Index: zpty.c
===================================================================
RCS file: /cvsroot/zsh/zsh/Src/Modules/zpty.c,v
retrieving revision 1.30
diff -u -r1.30 zpty.c
--- zpty.c	26 Feb 2004 20:48:09 -0000	1.30
+++ zpty.c	15 Mar 2004 16:39:04 -0000
@@ -165,9 +165,7 @@
 {
     static char *name;
     static int mfd, sfd;
-#if defined(I_FIND) && defined(I_PUSH) && defined(__SVR4)
     int ret;
-#endif
 
     if (master) {
 	if ((mfd = open("/dev/ptmx", O_RDWR|O_NOCTTY)) < 0)
@@ -190,7 +188,6 @@
 	close(mfd);
 	return 1;
     }
-#if defined(I_FIND) && defined(I_PUSH) && defined(__SVR4)
     /*
      * Use if STREAMS is available.  The test is probably OK,
      * but we could use e.g. the sys/stropts.h test.
@@ -207,13 +204,6 @@
 	   close(sfd);
 	   return 1;
        }
-    if ((ret = ioctl(sfd, I_FIND, "ttcompat")) != 1)
-       if (ret == -1 || ioctl(sfd, I_PUSH, "ttcompat") == -1) {
-	   close(mfd);
-	   close(sfd);
-	   return 1;
-       }
-#endif
 
     *retfd = sfd;