xref: /illumos-gate/usr/src/cmd/srchtxt/srchtxt.c (revision c464e8d1c46f2eb4848495bcfccd020b8481787d)
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 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #include	<stdio.h>
31 #include	<dirent.h>
32 #include	<regexpr.h>
33 #include	<string.h>
34 #include	<errno.h>
35 #include	<fcntl.h>
36 #include	<locale.h>
37 #include	<sys/types.h>
38 #include	<sys/file.h>
39 #include	<sys/mman.h>
40 #include	<sys/stat.h>
41 #include	<unistd.h>
42 
43 #define	P_locale	"/usr/lib/locale/"
44 #define	L_locale	(sizeof (P_locale))
45 #define	MESSAGES	"/LC_MESSAGES/"
46 #define	ESIZE		BUFSIZ
47 
48 /* External functions */
49 
50 extern	int	getopt();
51 extern	void	exit();
52 extern	char	*strecpy();
53 extern	char	*strrchr();
54 extern	char	*strchr();
55 
56 
57 /* External variables */
58 
59 extern	char	*optarg;
60 extern	int	optind;
61 
62 /* Internal functions */
63 
64 static	void	usage();
65 static	void	prnt_str();
66 static	int	attach();
67 static	void	find_msgs();
68 static	char	*syserr();
69 
70 /* Internal variables */
71 
72 static	char	*cmdname; 	/* points to the name of the command */
73 static	int	lflg;		/* set if locale is specified on command line */
74 static	int	mflg;		/* set if message file is specified on */
75 				/* command line */
76 static	char	locale[15];	/* save name of current locale */
77 static  char	*msgfile;	/* points to the argument immediately */
78 				/* following the m option */
79 static	char	*text;		/* pointer to search pattern */
80 static	int	textflg;	/* set if text pattern is specified on */
81 				/* command line */
82 static	int	sflg;		/* set if the s option is specified */
83 static	char	*fname;		/* points to message file name */
84 static	int	msgnum;		/* message number */
85 
86 int
87 main(int argc, char **argv)
88 {
89 	int	ch;
90 	char	*end;
91 	int	addr;
92 	int	len;
93 	int	len1;
94 	int	fd;
95 	size_t	size;
96 	char	pathname[128];
97 	char	*cp;
98 	char	ebuf[ESIZE];
99 	DIR	*dirp;
100 	struct	dirent	*dp;
101 
102 	/* find last level of path in command name */
103 	if (cmdname = strrchr(*argv, '/'))
104 		++cmdname;
105 	else
106 		cmdname = *argv;
107 
108 	/* parse command line */
109 	while ((ch = getopt(argc, argv, "sl:m:")) != -1)
110 		switch (ch) {
111 			case	'l':
112 				lflg++;
113 				(void) strcpy(locale, optarg);
114 				continue;
115 			case	'm':
116 				mflg++;
117 				msgfile = optarg;
118 				continue;
119 			case	's':
120 				sflg++;
121 				continue;
122 			default:
123 				usage();
124 			}
125 	if (mflg && optind < argc) {
126 		text = argv[optind++];
127 		textflg++;
128 	}
129 	if (optind != argc)
130 		usage();
131 
132 	/* create full path name to message files */
133 	if (!lflg)
134 		(void) strcpy(locale, setlocale(LC_MESSAGES, ""));
135 	(void) strcpy(pathname, P_locale);
136 	(void) strcpy(&pathname[L_locale - 1], locale);
137 	(void) strcat(pathname, MESSAGES);
138 	len = strlen(pathname);
139 
140 	if (textflg) {
141 			/* compile regular expression */
142 		if (compile(text, &ebuf[0], &ebuf[ESIZE]) == (char *)NULL) {
143 			(void) fprintf(stderr,
144 			    "%s: ERROR: regular expression compile failed\n",
145 			    cmdname);
146 			exit(1);
147 		}
148 	}
149 
150 	/* access message files */
151 	if (mflg) {
152 		end = msgfile + strlen(msgfile) + 1;
153 		if (*msgfile == ',' || *(end - 2) == ',')
154 			usage();
155 		while ((fname = strtok(msgfile, ",\0")) != NULL) {
156 			if (strchr(fname, '/') != (char *)NULL) {
157 				cp = fname;
158 				len1 = 0;
159 			} else {
160 				cp = pathname;
161 				len1 = len;
162 			}
163 			msgfile = msgfile + strlen(fname) + 1;
164 			if ((addr = attach(cp, len1, &fd, &size)) == -1) {
165 				(void) fprintf(stderr,
166 	"%s: ERROR: failed to access message file '%s'\n", cmdname, cp);
167 				if (end != msgfile)
168 					continue;
169 				else
170 					break;
171 			}
172 			find_msgs(addr, ebuf);
173 			(void) munmap((caddr_t)addr, size);
174 			(void) close(fd);
175 			if (end == msgfile)
176 				break;
177 		}
178 	} else { /* end if (mflg) */
179 		if ((dirp = opendir(pathname)) == NULL) {
180 			(void) fprintf(stderr, "%s: ERROR: %s %s\n",
181 			    cmdname, pathname, syserr());
182 			exit(1);
183 		}
184 		while ((dp = readdir(dirp)) != NULL) {
185 			if (dp->d_name[0] == '.')
186 				continue;
187 			fname = dp->d_name;
188 			if ((addr = attach(pathname, len, &fd, &size)) == -1) {
189 				(void) fprintf(stderr,
190 	"%s: ERROR: failed to access message file '%s'\n", cmdname, pathname);
191 				continue;
192 			}
193 			find_msgs(addr, ebuf);
194 			(void) munmap((caddr_t)addr, size);
195 			(void) close(fd);
196 		}
197 		(void) closedir(dirp);
198 	}
199 	return (0);
200 }
201 
202 
203 /* print usage message */
204 static void
205 usage()
206 {
207 	(void) fprintf(stderr,
208 	    "usage: srchtxt [-s]\n       srchtxt [-s] -l locale\n"
209 	    "       srchtxt [-s] [-l locale] [-m msgfile,...] [text]\n");
210 	exit(1);
211 }
212 
213 /*
214  * print string - non-graphic characters are printed as alphabetic
215  * escape sequences
216  */
217 static	void
218 prnt_str(instring)
219 char	*instring;
220 {
221 	char	outstring[1024];
222 
223 	(void) strecpy(outstring, instring, NULL);
224 	if (sflg)
225 		(void) fprintf(stdout, "%s\n", outstring);
226 	else
227 		(void) fprintf(stdout, "<%s:%d>%s\n", fname, msgnum, outstring);
228 }
229 
230 /* mmap a message file to the address space */
231 static int
232 attach(path, len, fdescr, size)
233 char	*path;
234 int	len;
235 int	*fdescr;
236 size_t	*size;
237 {
238 	int	fd = -1;
239 	caddr_t	addr;
240 	struct	stat	sb;
241 
242 	(void) strcpy(&path[len], fname);
243 	if ((fd = open(path, O_RDONLY)) != -1 &&
244 	    fstat(fd, &sb) != -1 &&
245 	    (addr = mmap(0, sb.st_size,
246 		PROT_READ, MAP_SHARED,
247 		fd, 0)) != (caddr_t)-1) {
248 		*fdescr = fd;
249 		*size = sb.st_size;
250 		return ((int)addr);
251 	} else {
252 		if (fd == -1)
253 			(void) close(fd);
254 		return (-1);
255 	}
256 }
257 
258 
259 /* find messages in message files */
260 static void
261 find_msgs(addr, regexpr)
262 int	addr;
263 char	*regexpr;
264 {
265 	int	num_msgs;
266 	char	*msg;
267 
268 	num_msgs = *(int *)addr;
269 	for (msgnum = 1; msgnum <= num_msgs; msgnum++) {
270 		msg = (char *)(*(int *)(addr + sizeof (int) * msgnum) + addr);
271 		if (textflg) {
272 			if (step(msg, regexpr))
273 				prnt_str(msg);
274 			continue;
275 		}
276 		prnt_str(msg);
277 	}
278 }
279 
280 /* print description of error */
281 static char *
282 syserr()
283 {
284 	return (strerror(errno));
285 }
286