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util.c revision 1.1 
      1 /*	$NetBSD: util.c,v 1.1 1997/09/26 17:54:09 phil Exp $	*/
      2 
      3 /*
      4  * Copyright 1997 Piermont Information Systems Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software develooped for the NetBSD Project by
     20  *      Piermont Information Systems Inc.
     21  * 4. The name of Piermont Information Systems Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
     26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
     29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     35  * THE POSSIBILITY OF SUCH DAMAGE.
     36  *
     37  */
     38 
     39 /* util.c - utility routines. */
     40 
     41 #include <stdio.h>
     42 #include <stdlib.h>
     43 #include <string.h>
     44 #include <stdarg.h>
     45 #include "defs.h"
     46 
     47 /* Error routine */
     48 void
     49 yyerror(const char *fmt, ...)
     50 {
     51 	va_list args;
     52 
     53 	va_start (args, fmt);
     54 	printf ("%s:%d: ", src_name, line_no);
     55 	vfprintf (stdout, fmt, args);
     56 	printf ("\n");
     57 	va_end (args);
     58 	had_errors = TRUE;
     59 }
     60 
     61 
     62 /* Buffer routines */
     63 static char *mc_buff = NULL;
     64 static int mc_size = 0;
     65 static int mc_loc = 0;
     66 
     67 void buff_add_ch (char ch)
     68 {
     69 	char *t;
     70 
     71 	if (mc_loc >= mc_size-1) {
     72 		if (mc_size == 0)
     73 			mc_size = 80;
     74 		else
     75 			mc_size *= 2;
     76 		t = (char *) malloc (mc_size);
     77 		if (t == NULL) {
     78 			(void) fprintf (stderr, "%s:%d: Malloc error\n",
     79 					 src_name, line_no);
     80 			exit (1);
     81 		}
     82 		if (mc_buff != NULL) {
     83 			strcpy (t, mc_buff);
     84 			free (mc_buff);
     85 		}
     86 		mc_buff = t;
     87 	}
     88 	mc_buff[mc_loc++] = ch;
     89 	mc_buff[mc_loc] = '\0';
     90 }
     91 
     92 /* get a copy of the string ! */
     93 
     94 char *
     95 buff_copy (void)
     96 {
     97 	char *res = strdup (mc_buff);
     98 	mc_loc = 0;
     99 	mc_buff[0] = '\0';
    100 	return  res;
    101 }
    102