124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/* $NetBSD: getcom.c,v 1.11 2003/08/07 09:37:02 agc Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)getcom.c 8.1 (Berkeley) 5/31/93";
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#else
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__RCSID("$NetBSD: getcom.c,v 1.11 2003/08/07 09:37:02 agc Exp $");
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#endif
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#endif /* not lint */
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#include "extern.h"
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char *
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getcom(buf, size, prompt, error)
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char *buf;
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int size;
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const char *prompt, *error;
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{
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for (;;) {
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fputs(prompt, stdout);
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if (fgets(buf, size, stdin) == 0) {
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if (feof(stdin))
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die();
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clearerr(stdin);
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continue;
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}
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while (isspace(*buf))
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buf++;
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if (*buf)
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break;
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if (error)
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puts(error);
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}
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/* If we didn't get to the end of the line, don't read it in next time. */
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if (buf[strlen(buf) - 1] != '\n') {
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int i;
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while ((i = getchar()) != '\n' && i != EOF)
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continue;
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}
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return (buf);
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}
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/*
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* shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
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* and leaves it unchanged if flag = 0
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*/
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char *
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getword(buf1, buf2, flag)
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char *buf1, *buf2;
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int flag;
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{
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int cnt;
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cnt = 1;
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while (isspace(*buf1))
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buf1++;
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if (*buf1 != ',') {
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if (!*buf1) {
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*buf2 = 0;
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return (0);
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}
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while (cnt < WORDLEN && *buf1 && !isspace(*buf1) && *buf1 != ',')
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if (flag < 0) {
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if (isupper(*buf1)) {
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*buf2++ = tolower(*buf1++);
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cnt++;
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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} else if (flag > 0) {
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if (islower(*buf1)) {
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*buf2++ = toupper(*buf1++);
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cnt++;
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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if (cnt == WORDLEN)
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while (*buf1 && !isspace(*buf1))
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buf1++;
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} else
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*buf2++ = *buf1++;
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*buf2 = '\0';
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while (isspace(*buf1))
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buf1++;
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return (*buf1 ? buf1 : NULL);
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}
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