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util.c revision 1.2 
      1 /*	$NetBSD: util.c,v 1.2 2003/06/23 13:05:49 agc 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 <sys/cdefs.h>
     42 
     43 #ifndef lint
     44 __RCSID("$NetBSD: util.c,v 1.2 2003/06/23 13:05:49 agc Exp $");
     45 #endif
     46 
     47 
     48 #include <stdio.h>
     49 #include <stdlib.h>
     50 #include <string.h>
     51 #include <stdarg.h>
     52 #include "defs.h"
     53 
     54 /* Error routine */
     55 void
     56 yyerror(const char *fmt, ...)
     57 {
     58 	va_list args;
     59 
     60 	va_start (args, fmt);
     61 	printf ("%s:%d: ", src_name, line_no);
     62 	vfprintf (stdout, fmt, args);
     63 	printf ("\n");
     64 	va_end (args);
     65 	had_errors = TRUE;
     66 }
     67 
     68 
     69 /* Buffer routines */
     70 static char *mc_buff = NULL;
     71 static int mc_size = 0;
     72 static int mc_loc = 0;
     73 
     74 void buff_add_ch (char ch)
     75 {
     76 	char *t;
     77 
     78 	if (mc_loc >= mc_size-1) {
     79 		if (mc_size == 0)
     80 			mc_size = 80;
     81 		else
     82 			mc_size *= 2;
     83 		t = (char *) malloc (mc_size);
     84 		if (t == NULL) {
     85 			(void) fprintf (stderr, "%s:%d: Malloc error\n",
     86 					 src_name, line_no);
     87 			exit (1);
     88 		}
     89 		if (mc_buff != NULL) {
     90 			strcpy (t, mc_buff);
     91 			free (mc_buff);
     92 		}
     93 		mc_buff = t;
     94 	}
     95 	mc_buff[mc_loc++] = ch;
     96 	mc_buff[mc_loc] = '\0';
     97 }
     98 
     99 /* get a copy of the string ! */
    100 
    101 char *
    102 buff_copy (void)
    103 {
    104 	char *res = strdup (mc_buff);
    105 	mc_loc = 0;
    106 	mc_buff[0] = '\0';
    107 	return  res;
    108 }
    109