Cannot find the include file I need

[doelz at urz.unibas.ch]

In article <14637 at thorin.cs.unc.edu>, taylorr at glycine.cs.unc.edu (Russell Taylor) writes:
> 
> 	We have an IRIS 4D running OS 3.2.2.  I am trying to find the
> include file that defines 'struct sgttyb'.  I know it must be there
> somewhere, because /usr/include/curses.h makes use of the structure

No way. If you look at curses.h, it explicitly says 

#ifdef SYSV
 ... 
#else
# ifndef _SGTTYB_
#    include <sgtty.h> 
# endif
     typedef struct sgttyb SGTTY; 
      ... 
#endif

and this means that you won't need it on a IRIX (SYSV) in the view 
of an IRIY programmer. If you are porting from BSD, you will meet 
lots of incompatibilities like these. 

What sgtty does: It defines the speed, the erase and kill character, and the 
mode flags:  

struct sgttyb {
	char	sg_ispeed;		/* input speed */
	char	sg_ospeed;		/* output speed */
	char	sg_erase;		/* erase character */
	char	sg_kill;		/* kill character */
	short	sg_flags;		/* mode flags */
};

Unfortunately, gtty isn't supported as system call on IRIX. 
There is a smiling remark in /usr/include/sgtty.h pointing to 
/usr/include/bsd, and there  - rien ne va plus.  

BUT: If you are looking at what gtty  does, I suspect that this is 
a call which is doing the opposite of stty, namely reading the 
state of the terminal. This can be done easily by a 
ioctl(2) call. ioctl asks for the file descriptor (the terminal device), 
what you want to to (read terminal io parameters: TCGETA), and an 
argument which is device-specific. On IRIX, this one is in termio.h, 
and you need to refer to termio(7). Look at the end of the man page of 
termio(7). 
 

Hope this helps, 
Reinhard