Re: intr and RC

[Alan Watson <alan@oldp.nmsu.edu>]

I've looked at this for a little while and these diffs seems to work
for me on

    SunOS charon 5.5 Generic sun4u sparc SUNW,Ultra-1
    
when compiled with c89 and without -lbsd or -lreadline.

There seem to be two things to get right: the behaviour on interrupts
with and without a handler. I think this does the right thing, but rc
signals are pretty much Greek to me.

Regards,

Alan

*** config.h.orig   Tue Jan  7 12:39:57 1997
--- config.h    Tue Jan  7 12:39:46 1997
***************
*** 130,140 ****
  #define DEFAULTPATH "/usr/bsd", "/usr/sbin", "/usr/bin", "/bin", "."
  #endif
  
! #ifdef sun        /* Used on SunOS 4.1.1 */
! #define PROTECT_ENV
! #undef DEFAULTPATH
! #define DEFAULTPATH "/usr/ucb", "/usr/bin", "."
  #endif
  
  /*
   * Suggested settings for HP300 running 4.3BSD-utah (DWS):
--- 130,151 ----
  #define DEFAULTPATH "/usr/bsd", "/usr/sbin", "/usr/bin", "/bin", "."
  #endif
  
! #ifdef sun
! #ifdef __SVR4     /* Used on Solaris */
!   #ifndef SYSVR4
!   #define SYSVR4
!   #endif
!   #define NOSIGCLD
!   #define SVSIGS
!   #define PROTECT_ENV
!   #undef DEFAULTPATH
!   #define DEFAULTPATH "/usr/ucb", "/usr/bin", "."
! #else     /* Used on SunOS 4.1.1 */
!   #define PROTECT_ENV
!   #undef DEFAULTPATH
!   #define DEFAULTPATH "/usr/ucb", "/usr/bin", "."
  #endif
+ #endif
  
  /*
   * Suggested settings for HP300 running 4.3BSD-utah (DWS):
*** input.c.orig    Tue Jan  7 11:03:30 1997
--- input.c Tue Jan  7 12:52:00 1997
***************
*** 137,144 ****
            } else
  #endif
                {
!               long /*ssize_t*/ r = rc_read(istack->fd, inbuf + 2, BUFSIZE);
!               sigchk();
                if (r < 0) {
                    uerror("read");
                    rc_exit(1);
--- 137,148 ----
            } else
  #endif
                {
!               long /*ssize_t*/ r;
!               do {
!                   errno = 0;
!                   r = rc_read(istack->fd, inbuf + 2, BUFSIZE);
!                   sigchk();
!               } while (r < 0 && errno == EINTR);
                if (r < 0) {
                    uerror("read");
                    rc_exit(1);