168 lines
5.5 KiB
C
168 lines
5.5 KiB
C
/*
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* COMPONENT_NAME: BLDPROCESS
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*
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* FUNCTIONS: defined
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* getstr
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*
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* ORIGINS: 27,71
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*
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* This module contains IBM CONFIDENTIAL code. -- (IBM
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* Confidential Restricted when combined with the aggregated
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* modules for this product)
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* SOURCE MATERIALS
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*
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* (C) COPYRIGHT International Business Machines Corp. 1994
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* All Rights Reserved
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* US Government Users Restricted Rights - Use, duplication or
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* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
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*/
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/*
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* COPYRIGHT NOTICE
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* Copyright (c) 1992, 1991, 1990
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* Open Software Foundation, Inc.
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*
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* Permission is hereby granted to use, copy, modify and freely distribute
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* the software in this file and its documentation for any purpose without
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* fee, provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation. Further, provided that the name of Open
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* Software Foundation, Inc. ("OSF") not be used in advertising or
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* publicity pertaining to distribution of the software without prior
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* written permission from OSF. OSF makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* Copyright (c) 1992 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software_Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* HISTORY
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* $Log: getstr.c,v $
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* Revision 1.7.7.1 1993/11/05 22:53:43 damon
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* CR 775. Added include of string.h
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* [1993/11/05 22:53:32 damon]
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*
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* Revision 1.7.5.2 1993/04/27 20:55:45 damon
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* CR 463. Made pedantic changes
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* [1993/04/27 20:55:27 damon]
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*
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* Revision 1.7.2.3 1992/12/03 17:20:58 damon
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* ODE 2.2 CR 183. Added CMU notice
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* [1992/12/03 17:08:16 damon]
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*
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* Revision 1.7.2.2 1992/12/02 20:26:17 damon
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* ODE 2.2 CR 183. Added CMU notice
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* [1992/12/02 20:23:20 damon]
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*
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* Revision 1.7 1991/12/05 21:05:06 devrcs
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* Added _FREE_ to copyright marker
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* [91/08/01 08:11:33 mckeen]
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*
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* rcsid/RCSfile header cleanup
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* [90/12/01 17:24:16 dwm]
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*
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* Revision 1.5 90/10/07 20:03:32 devrcs
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* Added EndLog Marker.
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* [90/09/28 20:09:23 gm]
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*
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* Revision 1.4 90/08/09 14:23:15 devrcs
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* Moved here from usr/local/sdm/lib/libsb.
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* [90/08/05 12:47:09 gm]
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*
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* Revision 1.3 90/06/29 14:38:46 devrcs
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* Moved here from defunct libcs library.
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* [90/06/23 14:21:16 gm]
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*
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* Revision 1.2 90/01/02 19:27:00 gm
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* Fixes for first snapshot.
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*
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* Revision 1.1 89/12/26 10:14:41 gm
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* Current version from CMU.
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* [89/12/23 gm]
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*
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* Modified for 4.2 BSD. Now uses stderr for output.
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* [85/04/28 sas]
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*
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* Added code to copy default to answer (in addition to Fil's code to
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* return NULL) on error or EOF in the standard input.
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* [82/10/23 sas]
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*
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* Getstr() now percuolates any errors from gets() up to the calling
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* routine.
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* [80/10/21 faa]
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*
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* Increased buffer size to 4000 characters. Why not?
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* [80/05/19 sas]
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*
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* Rewritten for VAX. Mike thinks a 0 pointer for the default should
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* print no default (i.e. not even braces); I'm not sure I like the idea
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* of a routine that doesn't explicitly tell you what happens if you
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* just hit Carriage Return.
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* [79/11/20 sas]
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*
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* $EndLog$
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*/
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#ifndef lint
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static char sccsid[] = "@(#)85 1.1 src/bldenv/sbtools/libode/getstr.c, bldprocess, bos412, GOLDA411a 1/19/94 17:41:10";
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#endif /* not lint */
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#if !defined(lint) && !defined(_NOIDENT)
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static char rcsid[] = "@(#)$RCSfile: getstr.c,v $ $Revision: 1.7.7.1 $ (OSF) $Date: 1993/11/05 22:53:43 $";
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#endif
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/* getstr -- prompt user for a string
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*
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* Usage: p = getstr (prompt,defalt,answer);
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* char *p,*prompt,*defalt,*answer;
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*
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* Getstr prints this message: prompt [defalt]
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* and accepts a line of input from the user. This line is
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* entered into "answer", which must be a big char array;
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* if the user types just carriage return, then the string
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* "defalt" is copied into answer.
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* Value returned by getstr is just the same as answer,
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* i.e. pointer to result string.
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* The default value is used on error or EOF in the standard input.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <ode/util.h>
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char *
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getstr ( const char *prompt, const char *defalt, char *answer )
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{
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char defbuf[4000];
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register char *retval;
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fflush (stdout);
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fprintf (stderr,"%s [%s] ",prompt,defalt);
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fflush (stderr);
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strcpy (defbuf,defalt);
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retval = (char *) gets (answer);
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if (retval == NULL || *answer == '\0') strcpy (answer,defbuf);
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if (retval == NULL)
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return (retval);
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else
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return (answer);
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}
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