shadow/lib/fputsx.c

/*
 * Copyright 1990 - 1994, Julianne Frances Haugh
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <config.h>

#include <stdio.h>
#include "defines.h"

#ident "$Id$"


char *fgetsx (char *buf, int cnt, FILE * f)
{
	char *cp = buf;
	char *ep;

	while (cnt > 0) {
		if (fgets (cp, cnt, f) == 0) {
			if (cp == buf)
				return 0;
			else
				break;
		}
		if ((ep = strrchr (cp, '\\')) && *(ep + 1) == '\n') {
			if ((cnt -= ep - cp) > 0)
				*(cp = ep) = '\0';
		} else
			break;
	}
	return buf;
}

int fputsx (const char *s, FILE * stream)
{
	int i;

	for (i = 0; *s; i++, s++) {
		if (putc (*s, stream) == EOF)
			return EOF;

#if 0				/* The standard getgr*() can't handle that.  --marekm */
		if (i > (BUFSIZ / 2)) {
			if (putc ('\\', stream) == EOF ||
			    putc ('\n', stream) == EOF)
				return EOF;

			i = 0;
		}
#endif
	}
	return 0;
}