82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* $NetBSD: read_line.c,v 1.2 1997/10/13 03:42:29 lukem Exp $ */
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/*
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* Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se>
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mats O Jansson
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* 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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__RCSID("$NetBSD: read_line.c,v 1.2 1997/10/13 03:42:29 lukem Exp $");
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#endif
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#include <sys/param.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include "protos.h"
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/*
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* Read one line
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*/
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int
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read_line(fp, buf, size)
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FILE *fp;
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char *buf;
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int size;
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{
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int done = 0;
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do {
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while (fgets(buf, size, fp)) {
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int len = strlen(buf);
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done += len;
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if (len > 1 && buf[len - 2] == '\\' &&
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buf[len - 1] == '\n') {
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int ch;
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buf += len - 2;
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size -= len - 2;
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*buf = '\n';
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buf[1] = '\0';
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/* Skip leading white space on next line */
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while ((ch = getc(fp)) != EOF &&
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isascii(ch) && isspace(ch))
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/* empty */ ;
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(void) ungetc(ch, fp);
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} else
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return done;
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}
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} while (size > 0 && !feof(fp));
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return done;
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}
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