xref: /illumos-gate/usr/src/cmd/dumpcs/dumpcs.c (revision 0250c53ad267726f2438e3c6556199a0bbf588a2)
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 #include <stdio.h>
28 #include <ctype.h>
29 #include <string.h>
30 #include <stdlib.h>
31 #include <limits.h>
32 #include <locale.h>
33 #include <wctype.h>
34 #include <getwidth.h>
35 
36 #define	SCRWID 80
37 #define	LC_NAMELEN 255
38 
39 #if !defined SS2
40 #define	SS2 0x8e
41 #endif
42 #if !defined SS3
43 #define	SS3 0x8f
44 #endif
45 
46 static unsigned int cpl;	/* current characters per line */
47 static unsigned int cplmax;	/* maximum characters per line */
48 static unsigned char codestr[MB_LEN_MAX + 1];
49 static char linebuf[SCRWID / 2 * (MB_LEN_MAX + 1)];
50 static int pinline;		/* any printable to be listed in the line? */
51 static int omitting;		/* omitting blank lines under no vflag? */
52 static int vflag = 0;
53 static int wflag = 0;
54 static int csprint();
55 static int prcode();
56 
57 int
58 main(ac, av)
59 int ac;
60 char *av[];
61 {
62 	int c;
63 	short int eucw[4];
64 	short int scrw[4];
65 	int csflag[4];
66 	int cs;
67 	int i;
68 	eucwidth_t eucwidth;
69 	char *lc_ctype;
70 	char titlebar[LC_NAMELEN + 14];
71 
72 	(void) setlocale(LC_ALL, "");
73 #if !defined(TEXT_DOMAIN)
74 #define	TEXT_DOMAIN "SYS_TEST"
75 #endif
76 	(void) textdomain(TEXT_DOMAIN);
77 	lc_ctype = setlocale(LC_CTYPE, NULL);
78 	getwidth(&eucwidth);
79 	eucw[0] = 1;
80 	eucw[1] = eucwidth._eucw1;
81 	eucw[2] = eucwidth._eucw2;
82 	eucw[3] = eucwidth._eucw3;
83 	scrw[0] = 1;
84 	scrw[1] = eucwidth._scrw1;
85 	scrw[2] = eucwidth._scrw2;
86 	scrw[3] = eucwidth._scrw3;
87 	for (i = 0; i <= 3; i++)
88 		csflag[i] = 0;
89 	for (i = 1; i < ac; i++)
90 		if (*av[i] != '-')
91 			goto usage;
92 	while ((c = getopt(ac, av, "0123vw")) != -1) {
93 		switch (c) {
94 			case '0':
95 			case '1':
96 			case '2':
97 			case '3':
98 				csflag[c - '0'] = 1;
99 				break;
100 			case 'v':
101 				vflag++;
102 				break;
103 			case 'w':
104 				wflag++;
105 				break;
106 			default:
107 			usage:
108 				(void) printf(gettext("usage: %s [-0123vw]\n"), av[0]);
109 				exit (1);
110 		}
111 	}
112 	if ((csflag[0] + csflag[1] + csflag[2] + csflag[3]) == 0) {
113 		for (i = 0; i <= 3; i++)
114 			csflag[i]++;
115 	}
116 	(void) strcpy(titlebar, "");
117 	for (i = strlen(lc_ctype) + 14; i; i--)
118 		(void) strcat(titlebar, ":");
119 	for (cs = 0; cs <= 3; cs++) {
120 		if (csflag[cs] && eucw[cs] && scrw[cs]) {
121 			(void) printf("%s\n", titlebar);
122 			(void) printf("LC_CTYPE:%s", lc_ctype);
123 			(void) printf(" CS:%d\n", cs);
124 			(void) printf("%s", titlebar);
125 			(void) csprint(cs, (int) eucw[cs], (int) scrw[cs]);
126 			(void) printf("\n");
127 		}
128 	}
129 	return (0);
130 }
131 
132 int
133 csprint(cs, bytes, columns)
134 int cs, bytes, columns;
135 {
136 	int col, i, position;
137 	int bytelen;
138 	int minvalue;
139 	int maxvalue;
140 
141 	col = SCRWID - bytes * 2 - 1;
142 	cplmax = 1;
143 	for (i = columns + 1; i <= col; i *= 2) cplmax *= 2;
144 	cplmax /= 2;
145 	bytelen = bytes;
146 	minvalue = 0x20;
147 	maxvalue = 0x7f;
148 	position = 0;
149 	if (cs > 0) {
150 		minvalue = 0xa0;
151 		maxvalue = 0xff;
152 	}
153 	if (cs == 2) {
154 		codestr[position++] = SS2;
155 		bytelen++;
156 	}
157 	if (cs == 3) {
158 		codestr[position++] = SS3;
159 		bytelen++;
160 	}
161 	codestr[position] = '\0';
162 	cpl = 0;
163 	(void) strcpy(linebuf, "");
164 	(void) prcode(bytelen, position, minvalue, maxvalue, columns);
165 	if (pinline || vflag) {
166 		(void) printf("\n%s", linebuf);
167 	} else if (!omitting) {
168 		(void) printf("\n*");
169 	}
170 	omitting = 0;
171 	return (0);
172 }
173 
174 /*
175  * prcode() prints series of len-byte codes, of which each byte can
176  * have a code value between min and max, in incremental code order.
177  */
178 int
179 prcode(len, pos, min, max, col)
180 int len, pos, min, max, col;
181 {
182 	int byte, i, nextpos;
183 	unsigned long widechar;	/* limitting wchar_t width - not good */
184 	char *prep;
185 	wchar_t wc;
186 	int	mbl;
187 
188 	if (len - pos > 1) {
189 		for (byte = min; byte <= max; byte++) {
190 			codestr[pos] = (unsigned char) byte;
191 			nextpos = pos + 1;
192 			codestr[nextpos] = '\0';
193 			(void) prcode(len, nextpos, min, max, col);
194 		}
195 	} else {
196 		for (byte = min; byte <= max; byte++) {
197 			codestr[pos] = (unsigned char) byte;
198 			nextpos = pos + 1;
199 			codestr[nextpos] = '\0';
200 			if (!cpl) {
201 				widechar = 0;
202 				i = 0;
203 				while (codestr[i] != '\0') {
204 					widechar = (widechar << 8) |
205 						(unsigned long) codestr[i++];
206 				}
207 				if (*linebuf) {
208 					if (pinline || vflag) {
209 						(void) printf("\n%s", linebuf);
210 						omitting = 0;
211 					} else if (!omitting) {
212 						(void) printf("\n*");
213 						omitting++;
214 					}
215 				}
216 				if (!wflag) {
217 					(void) sprintf(linebuf, "%lx ",
218 					    widechar);
219 				} else {
220 					(void) mbtowc(&wc, (char *) codestr,
221 					    MB_CUR_MAX);
222 					(void) sprintf(linebuf, "%lx ", wc);
223 				}
224 				pinline = 0;
225 			}
226 			prep = " ";
227 			if ((mbl = mbtowc(&wc, (char *) codestr,
228 			    MB_CUR_MAX)) < 0)
229 				prep = "*";
230 			if (mbl == 1) {
231 				if (!(isprint(codestr[0]))) prep = "*";
232 			} else if (!(iswprint(wc)))
233 				prep = "*";
234 			if (prep[0] == '*') {
235 				(void) strcat(linebuf, prep);
236 				for (i = 1; i <= col; i++)
237 					(void) strcat(linebuf, " ");
238 			} else {
239 				(void) strcat(linebuf, prep);
240 				(void) strcat(linebuf, (char *) codestr);
241 				pinline = 1;
242 			}
243 			cpl++;
244 			cpl = cpl % cplmax;
245 		}
246 	}
247 	return (0);
248 }
249