1 /* $NetBSD: util.c,v 1.6 2019/06/23 22:46:53 christos 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. The name of Piermont Information Systems Inc. may not be used to endorse
18 * or promote products derived from this software without specific prior
19 * written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35 /* util.c - utility routines. */
36
37 #if HAVE_NBTOOL_CONFIG_H
38 #include "nbtool_config.h"
39 #endif
40
41 #include <sys/cdefs.h>
42
43 #if defined(__RCSID) && !defined(lint)
44 __RCSID("$NetBSD: util.c,v 1.6 2019/06/23 22:46:53 christos Exp $");
45 #endif
46
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <string.h>
50 #include <stdarg.h>
51 #include "defs.h"
52
53 /* Error routine */
54 void
yyerror(const char * fmt,...)55 yyerror(const char *fmt, ...)
56 {
57 va_list args;
58
59 va_start(args, fmt);
60 printf("%s:%d: ", src_name, line_no);
61 vfprintf(stdout, fmt, args);
62 printf("\n");
63 va_end(args);
64 had_errors = TRUE;
65 }
66
67 /* Buffer routines */
68 static char *mc_buff = NULL;
69 static int mc_size = 0;
70 static int mc_loc = 0;
71
72 void
buff_add_ch(char ch)73 buff_add_ch(char ch)
74 {
75 char *t;
76
77 if (mc_loc >= mc_size-1) {
78 if (mc_size == 0)
79 mc_size = 80;
80 else
81 mc_size *= 2;
82 t = malloc(mc_size);
83 if (t == NULL) {
84 (void)fprintf(stderr, "%s:%d: Malloc error\n",
85 src_name, line_no);
86 exit(1);
87 }
88 if (mc_buff != NULL) {
89 strcpy(t, mc_buff);
90 free(mc_buff);
91 }
92 mc_buff = t;
93 }
94 mc_buff[mc_loc++] = ch;
95 mc_buff[mc_loc] = '\0';
96 }
97
98 /* get a copy of the string ! */
99 char *
buff_copy(void)100 buff_copy(void)
101 {
102 char *res = strdup(mc_buff);
103
104 mc_loc = 0;
105 mc_buff[0] = '\0';
106 return res;
107 }
108