NetBSD/usr.bin/menuc/util.c

108 lines
2.8 KiB
C

/* $NetBSD: util.c,v 1.6 2019/06/23 22:46:53 christos Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
* All rights reserved.
*
* Written by Philip A. Nelson for Piermont Information Systems Inc.
*
* 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. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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.
*
*/
/* util.c - utility routines. */
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: util.c,v 1.6 2019/06/23 22:46:53 christos Exp $");
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "defs.h"
/* Error routine */
void
yyerror(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
printf("%s:%d: ", src_name, line_no);
vfprintf(stdout, fmt, args);
printf("\n");
va_end(args);
had_errors = TRUE;
}
/* Buffer routines */
static char *mc_buff = NULL;
static int mc_size = 0;
static int mc_loc = 0;
void
buff_add_ch(char ch)
{
char *t;
if (mc_loc >= mc_size-1) {
if (mc_size == 0)
mc_size = 80;
else
mc_size *= 2;
t = malloc(mc_size);
if (t == NULL) {
(void)fprintf(stderr, "%s:%d: Malloc error\n",
src_name, line_no);
exit(1);
}
if (mc_buff != NULL) {
strcpy(t, mc_buff);
free(mc_buff);
}
mc_buff = t;
}
mc_buff[mc_loc++] = ch;
mc_buff[mc_loc] = '\0';
}
/* get a copy of the string ! */
char *
buff_copy(void)
{
char *res = strdup(mc_buff);
mc_loc = 0;
mc_buff[0] = '\0';
return res;
}