1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright (c) 1997, by Sun Microsystems, Inc.
28 * All rights reserved.
29 */
30
31 /*LINTLIBRARY*/
32
33 #include <sys/types.h>
34 #include <stdlib.h>
35 #include "utility.h"
36
37 /*
38 * TYPE_ALNUM
39 *
40 * usage:
41 * set_field_type(f, TYPE_ALNUM, width);
42 *
43 * int width; minimum token width
44 */
45 static char * make_alnum(va_list *);
46 static char * copy_alnum(char *);
47 static void free_alnum(char *);
48 static int fcheck_alnum(FIELD *, char *);
49 static int ccheck_alnum(int, char *);
50
51 static FIELDTYPE typeALNUM =
52 {
53 ARGS, /* status */
54 1, /* ref */
55 (FIELDTYPE *) 0, /* left */
56 (FIELDTYPE *) 0, /* right */
57 make_alnum, /* makearg */
58 copy_alnum, /* copyarg */
59 free_alnum, /* freearg */
60 fcheck_alnum, /* fcheck */
61 ccheck_alnum, /* ccheck */
62 (PTF_int) 0, /* next */
63 (PTF_int) 0, /* prev */
64 };
65
66 FIELDTYPE * TYPE_ALNUM = &typeALNUM;
67
68 static char *
make_alnum(va_list * ap)69 make_alnum(va_list *ap)
70 {
71 int * width;
72
73 if (Alloc(width, int))
74 *width = va_arg(*ap, int);
75 return ((char *) width);
76 }
77
78 static char *
copy_alnum(char * arg)79 copy_alnum(char *arg)
80 {
81 int * width;
82
83 if (Alloc(width, int))
84 *width = *((int *) arg);
85 return ((char *) width);
86 }
87
88 static void
free_alnum(char * arg)89 free_alnum(char *arg)
90 {
91 Free(arg);
92 }
93
94 static int
fcheck_alnum(FIELD * f,char * arg)95 fcheck_alnum(FIELD *f, char *arg)
96 {
97 int width = *((int *) arg);
98 int n = 0;
99 char *v = field_buffer(f, 0);
100
101 while (*v && *v == ' ')
102 ++v;
103 if (*v) {
104 char * vbeg = v;
105 while (*v && isalnum(*v))
106 ++v;
107 n = (int) (v - vbeg);
108 while (*v && *v == ' ')
109 ++v;
110 }
111 return (*v || n < width ? FALSE : TRUE);
112 }
113
114 /*ARGSUSED*/
115 static int
ccheck_alnum(int c,char * arg)116 ccheck_alnum(int c, char *arg)
117 {
118 return (isalnum(c));
119 }
120