Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!ukma!uflorida!novavax!infocenter!mhoffman
From: mhoffman@infocenter.UUCP (Mike Hoffman)
Newsgroups: comp.unix.questions
Subject: Re: To curse or not to curse
Message-ID: <2663@infocenter.UUCP>
Date: 9 Jun 89 13:56:11 GMT
References: <1cIi02Ph32aV01@amdahl.uts.amdahl.com>
Organization: Gould CSD, Fort Lauderdale, FL
Lines: 49

in article <1cIi02Ph32aV01@amdahl.uts.amdahl.com>, kucharsk@uts.amdahl.com (William Kucharski) says:
> 
> Here's a program which demonstrates one way of doing things:
> 
> #include <stdio.h>
> #include <termio.h>
> 
> main()
> {
>         int     a,c;
>         char    ch[BUF];
>         struct termio o,t;
> 
> 	if (ioctl(0, TCGETA, &o))
> 		perror("ioctl: get");
> 
>         t = o;
>         t.c_lflag = 0;		/* shut off everything */
>         t.c_cc[VEOF] = 1;	/* MIN chars == 1 */
>
>            [rest of code deleted...]

This works OK on every system I've worked on, but I understand that
some unfortunate souls must work without the benefits of structure
assignment. To make the code more portable for those systems
without, a #define statement could indicate this capability:

          . . . 

#ifdef STRUCTURE_ASST
        t = o;                   /* copy structure in one swell foop */
#else
        t.c_iflag  = o.c_iflag;  /* copy element by element. . . */
        t.c_oflag  = o.c_oflag;
        t.c_cflag  = o.c_cflag;
        t.c_lflag  = 0;          /* inserting the desired changes */
        t.c_line   = o.c_line;
        *t.cc      = *o.cc;
        t.cc[VEOF] = 1;
#endif
          . . . [rest of code]


Michael J. Hoffman                                   Voice: (407)255-8116
Manufacturing Engineering                              FAX: (407)255-8186
Encore Computer Corporation                          Email: mhoffman
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