xref: /illumos-gate/usr/src/cmd/dumpcs/dumpcs.c (revision 8b80e8cb6855118d46f605e91b5ed4ce83417395)
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 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <ctype.h>
31 #include <string.h>
32 #include <stdlib.h>
33 #include <limits.h>
34 #include <locale.h>
35 #include <wctype.h>
36 #include <getwidth.h>
37 
38 #define	SCRWID 80
39 #define	LC_NAMELEN 255
40 
41 #if !defined SS2
42 #define	SS2 0x8e
43 #endif
44 #if !defined SS3
45 #define	SS3 0x8f
46 #endif
47 
48 static unsigned int cpl;	/* current characters per line */
49 static unsigned int cplmax;	/* maximum characters per line */
50 static unsigned char codestr[MB_LEN_MAX + 1];
51 static char linebuf[SCRWID / 2 * (MB_LEN_MAX + 1)];
52 static int pinline;		/* any printable to be listed in the line? */
53 static int omitting;		/* omitting blank lines under no vflag? */
54 static int vflag = 0;
55 static int wflag = 0;
56 static int csprint();
57 static int prcode();
58 
59 int
60 main(ac, av)
61 int ac;
62 char *av[];
63 {
64 	int c;
65 	short int eucw[4];
66 	short int scrw[4];
67 	int csflag[4];
68 	int cs;
69 	int i;
70 	eucwidth_t eucwidth;
71 	char *lc_ctype;
72 	char titlebar[LC_NAMELEN + 14];
73 
74 	(void) setlocale(LC_ALL, "");
75 #if !defined(TEXT_DOMAIN)
76 #define	TEXT_DOMAIN "SYS_TEST"
77 #endif
78 	(void) textdomain(TEXT_DOMAIN);
79 	lc_ctype = setlocale(LC_CTYPE, NULL);
80 	getwidth(&eucwidth);
81 	eucw[0] = 1;
82 	eucw[1] = eucwidth._eucw1;
83 	eucw[2] = eucwidth._eucw2;
84 	eucw[3] = eucwidth._eucw3;
85 	scrw[0] = 1;
86 	scrw[1] = eucwidth._scrw1;
87 	scrw[2] = eucwidth._scrw2;
88 	scrw[3] = eucwidth._scrw3;
89 	for (i = 0; i <= 3; i++)
90 		csflag[i] = 0;
91 	for (i = 1; i < ac; i++)
92 		if (*av[i] != '-')
93 			goto usage;
94 	while ((c = getopt(ac, av, "0123vw")) != -1) {
95 		switch (c) {
96 			case '0':
97 			case '1':
98 			case '2':
99 			case '3':
100 				csflag[c - '0'] = 1;
101 				break;
102 			case 'v':
103 				vflag++;
104 				break;
105 			case 'w':
106 				wflag++;
107 				break;
108 			default:
109 			usage:
110 				(void) printf(gettext("usage: %s [-0123vw]\n"), av[0]);
111 				exit (1);
112 		}
113 	}
114 	if ((csflag[0] + csflag[1] + csflag[2] + csflag[3]) == 0) {
115 		for (i = 0; i <= 3; i++)
116 			csflag[i]++;
117 	}
118 	(void) strcpy(titlebar, "");
119 	for (i = strlen(lc_ctype) + 14; i; i--)
120 		(void) strcat(titlebar, ":");
121 	for (cs = 0; cs <= 3; cs++) {
122 		if (csflag[cs] && eucw[cs] && scrw[cs]) {
123 			(void) printf("%s\n", titlebar);
124 			(void) printf("LC_CTYPE:%s", lc_ctype);
125 			(void) printf(" CS:%d\n", cs);
126 			(void) printf("%s", titlebar);
127 			(void) csprint(cs, (int) eucw[cs], (int) scrw[cs]);
128 			(void) printf("\n");
129 		}
130 	}
131 	return (0);
132 }
133 
134 int
135 csprint(cs, bytes, columns)
136 int cs, bytes, columns;
137 {
138 	int col, i, position;
139 	int bytelen;
140 	int minvalue;
141 	int maxvalue;
142 
143 	col = SCRWID - bytes * 2 - 1;
144 	cplmax = 1;
145 	for (i = columns + 1; i <= col; i *= 2) cplmax *= 2;
146 	cplmax /= 2;
147 	bytelen = bytes;
148 	minvalue = 0x20;
149 	maxvalue = 0x7f;
150 	position = 0;
151 	if (cs > 0) {
152 		minvalue = 0xa0;
153 		maxvalue = 0xff;
154 	}
155 	if (cs == 2) {
156 		codestr[position++] = SS2;
157 		bytelen++;
158 	}
159 	if (cs == 3) {
160 		codestr[position++] = SS3;
161 		bytelen++;
162 	}
163 	codestr[position] = '\0';
164 	cpl = 0;
165 	(void) strcpy(linebuf, "");
166 	(void) prcode(bytelen, position, minvalue, maxvalue, columns);
167 	if (pinline || vflag) {
168 		(void) printf("\n%s", linebuf);
169 	} else if (!omitting) {
170 		(void) printf("\n*");
171 	}
172 	omitting = 0;
173 	return (0);
174 }
175 
176 /*
177  * prcode() prints series of len-byte codes, of which each byte can
178  * have a code value between min and max, in incremental code order.
179  */
180 int
181 prcode(len, pos, min, max, col)
182 int len, pos, min, max, col;
183 {
184 	int byte, i, nextpos;
185 	unsigned long widechar;	/* limitting wchar_t width - not good */
186 	char *prep;
187 	wchar_t wc;
188 	int	mbl;
189 
190 	if (len - pos > 1) {
191 		for (byte = min; byte <= max; byte++) {
192 			codestr[pos] = (unsigned char) byte;
193 			nextpos = pos + 1;
194 			codestr[nextpos] = '\0';
195 			(void) prcode(len, nextpos, min, max, col);
196 		}
197 	} else {
198 		for (byte = min; byte <= max; byte++) {
199 			codestr[pos] = (unsigned char) byte;
200 			nextpos = pos + 1;
201 			codestr[nextpos] = '\0';
202 			if (!cpl) {
203 				widechar = 0;
204 				i = 0;
205 				while (codestr[i] != '\0') {
206 					widechar = (widechar << 8) |
207 						(unsigned long) codestr[i++];
208 				}
209 				if (*linebuf) {
210 					if (pinline || vflag) {
211 						(void) printf("\n%s", linebuf);
212 						omitting = 0;
213 					} else if (!omitting) {
214 						(void) printf("\n*");
215 						omitting++;
216 					}
217 				}
218 				if (!wflag) {
219 					(void) sprintf(linebuf, "%lx ",
220 					    widechar);
221 				} else {
222 					(void) mbtowc(&wc, (char *) codestr,
223 					    MB_CUR_MAX);
224 					(void) sprintf(linebuf, "%lx ", wc);
225 				}
226 				pinline = 0;
227 			}
228 			prep = " ";
229 			if ((mbl = mbtowc(&wc, (char *) codestr,
230 			    MB_CUR_MAX)) < 0)
231 				prep = "*";
232 			if (mbl == 1) {
233 				if (!(isprint(codestr[0]))) prep = "*";
234 			} else if (!(iswprint(wc)))
235 				prep = "*";
236 			if (prep[0] == '*') {
237 				(void) strcat(linebuf, prep);
238 				for (i = 1; i <= col; i++)
239 					(void) strcat(linebuf, " ");
240 			} else {
241 				(void) strcat(linebuf, prep);
242 				(void) strcat(linebuf, (char *) codestr);
243 				pinline = 1;
244 			}
245 			cpl++;
246 			cpl = cpl % cplmax;
247 		}
248 	}
249 	return (0);
250 }
251