xref: /illumos-gate/usr/src/cmd/valtools/ckitem.c (revision 1a2d662a91cee3bf82f41cd47c7ae6f3825d9db2)
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 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 
31 /*
32  * Copyright (c) 2018, Joyent, Inc.
33  */
34 
35 #include <stdio.h>
36 #include <ctype.h>
37 #include <string.h>
38 #include <signal.h>
39 #include <valtools.h>
40 #include <stdlib.h>
41 #include <locale.h>
42 #include <libintl.h>
43 #include <limits.h>
44 #include <wchar.h>
45 #include "usage.h"
46 #include "libadm.h"
47 
48 #define	BADPID	(-2)
49 #define	INVISMAXSIZE 36
50 
51 static char	*prog;
52 static char	*deflt = NULL, *prompt = NULL, *error = NULL, *help = NULL;
53 static int	kpid = BADPID;
54 static int	signo;
55 
56 static char	*label, **invis;
57 static int	ninvis = 0;
58 static int	max = 1;
59 static int	attr = CKALPHA;
60 
61 #define	MAXSIZE	128
62 #define	LSIZE	1024
63 #define	INTERR	\
64 	"%s: ERROR: internal error occurred while attempting menu setup\n"
65 #define	MYOPTS \
66 	"\t-f file             #file containing choices\n" \
67 	"\t-l label            #menu label\n" \
68 	"\t-i invis [, ...]    #invisible menu choices\n" \
69 	"\t-m max              #maximum choices user may select\n" \
70 	"\t-n                  #do not sort choices alphabetically\n" \
71 	"\t-o                  #don't prompt if only one choice\n" \
72 	"\t-u                  #unnumbered choices\n"
73 
74 static const char	husage[] = "Wh";
75 static const char	eusage[] = "We";
76 
77 static void
78 usage(void)
79 {
80 	switch (*prog) {
81 	default:
82 		(void) fprintf(stderr,
83 			gettext("usage: %s [options] [choice [...]]\n"), prog);
84 		(void) fprintf(stderr, gettext(OPTMESG));
85 		(void) fprintf(stderr, gettext(MYOPTS));
86 		(void) fprintf(stderr, gettext(STDOPTS));
87 		break;
88 
89 	case 'h':
90 		(void) fprintf(stderr,
91 			gettext("usage: %s [options] [choice [...]]\n"), prog);
92 		(void) fprintf(stderr, gettext(OPTMESG));
93 		(void) fprintf(stderr,
94 			gettext("\t-W width\n\t-h help\n"));
95 		break;
96 
97 	case 'e':
98 		(void) fprintf(stderr,
99 			gettext("usage: %s [options] [choice [...]]\n"), prog);
100 		(void) fprintf(stderr, gettext(OPTMESG));
101 		(void) fprintf(stderr,
102 			gettext("\t-W width\n\t-e error\n"));
103 		break;
104 	}
105 	exit(1);
106 }
107 
108 /*
109  * Given argv[0], return a pointer to the basename of the program.
110  */
111 static char *
112 prog_name(char *arg0)
113 {
114 	char *str;
115 
116 	/* first strip trailing '/' characters (exec() allows these!) */
117 	str = arg0 + strlen(arg0);
118 	while (str > arg0 && *--str == '/')
119 		*str = '\0';
120 	if ((str = strrchr(arg0, '/')) != NULL)
121 		return (str + 1);
122 	return (arg0);
123 }
124 
125 int
126 main(int argc, char **argv)
127 {
128 	CKMENU	*mp;
129 	FILE	*fp = NULL;
130 	int	c, i;
131 	char	**item;
132 	char	temp[LSIZE * MB_LEN_MAX];
133 	size_t	mmax;
134 	size_t invismaxsize = INVISMAXSIZE;
135 	size_t	n, r;
136 	wchar_t	wline[LSIZE], wtemp[LSIZE];
137 
138 	(void) setlocale(LC_ALL, "");
139 
140 #if	!defined(TEXT_DOMAIN)
141 #define	TEXT_DOMAIN	"SYS_TEST"
142 #endif
143 	(void) textdomain(TEXT_DOMAIN);
144 
145 	prog = prog_name(argv[0]);
146 
147 	invis = (char **)calloc(invismaxsize, sizeof (char *));
148 	if (!invis) {
149 		(void) fprintf(stderr,
150 			gettext("Not enough memory\n"));
151 		exit(1);
152 	}
153 	while ((c = getopt(argc, argv, "m:oni:l:f:ud:p:e:h:k:s:QW:?")) != EOF) {
154 		/* check for invalid option */
155 		if ((*prog == 'e') && !strchr(eusage, c))
156 			usage(); /* no valid options */
157 		if ((*prog == 'h') && !strchr(husage, c))
158 			usage();
159 
160 		switch (c) {
161 		case 'Q':
162 			ckquit = 0;
163 			break;
164 
165 		case 'W':
166 			ckwidth = atol(optarg);
167 			if (ckwidth < 0) {
168 				(void) fprintf(stderr,
169 		gettext("%s: ERROR: negative display width specified\n"),
170 					prog);
171 				exit(1);
172 			}
173 			break;
174 
175 		case 'm':
176 			max = atoi(optarg);
177 			if (max > SHRT_MAX || max < SHRT_MIN) {
178 				(void) fprintf(stderr,
179 	gettext("%s: ERROR: too large or too small max value specified\n"),
180 					prog);
181 				exit(1);
182 			}
183 			break;
184 
185 		case 'o':
186 			attr |= CKONEFLAG;
187 			break;
188 
189 		case 'n':
190 			attr &= ~CKALPHA;
191 			break;
192 
193 		case 'i':
194 			invis[ninvis++] = optarg;
195 			if (ninvis == invismaxsize) {
196 				invismaxsize += INVISMAXSIZE;
197 				invis = (char **)realloc(invis,
198 						invismaxsize * sizeof (char *));
199 				if (!invis) {
200 					(void) fprintf(stderr,
201 						gettext("Not enough memory\n"));
202 					exit(1);
203 				}
204 				(void) memset(invis + ninvis, 0,
205 					(invismaxsize - ninvis) *
206 					sizeof (char *));
207 			}
208 			break;
209 
210 		case 'l':
211 			label = optarg;
212 			break;
213 
214 		case 'f':
215 			if ((fp = fopen(optarg, "r")) == NULL) {
216 				(void) fprintf(stderr,
217 					gettext("%s: ERROR: can't open %s\n"),
218 					prog, optarg);
219 				exit(1);
220 			}
221 			break;
222 
223 		case 'u':
224 			attr |= CKUNNUM;
225 			break;
226 
227 		case 'd':
228 			deflt = optarg;
229 			break;
230 
231 		case 'p':
232 			prompt = optarg;
233 			break;
234 
235 		case 'e':
236 			error = optarg;
237 			break;
238 
239 		case 'h':
240 			help = optarg;
241 			break;
242 
243 		case 'k':
244 			kpid = atoi(optarg);
245 			break;
246 
247 		case 's':
248 			signo = atoi(optarg);
249 			break;
250 
251 		default:
252 			usage();
253 		}
254 	}
255 
256 	if (signo) {
257 		if (kpid == BADPID)
258 			usage();
259 	} else
260 		signo = SIGTERM;
261 
262 	mp = allocmenu(label, attr);
263 	if (fp) {
264 		*wtemp = L'\0';
265 		while (fgetws(wline, LSIZE, fp)) {
266 			/*
267 			 * Skip comment lines, those beginning with '#'.
268 			 * Note:  AT&T forgot this & needs the next 2 lines.
269 			 */
270 			if (*wline == L'#')
271 				continue;
272 			n = wcslen(wline);
273 			if ((n != 0) && (wline[n - 1] == L'\n'))
274 				wline[n - 1] = L'\0';
275 			/*
276 			 * if the line begins with a space character,
277 			 * this is a continuous line to the previous line.
278 			 */
279 			if (iswspace(*wline)) {
280 				(void) wcscat(wtemp, L"\n");
281 				(void) wcscat(wtemp, wline);
282 			} else {
283 				if (*wtemp) {
284 					n = wcslen(wtemp);
285 					r = wcstombs(temp, wtemp,
286 						n * MB_LEN_MAX);
287 					if (r == (size_t)-1) {
288 						(void) fprintf(stderr,
289 			gettext("Invalid character in the menu definition.\n"));
290 						exit(1);
291 					}
292 					if (setitem(mp, temp)) {
293 						(void) fprintf(stderr,
294 							gettext(INTERR), prog);
295 						exit(1);
296 					}
297 				}
298 				(void) wcscpy(wtemp, wline);
299 			}
300 		}
301 		if (*wtemp) {
302 			n = wcslen(wtemp);
303 			r = wcstombs(temp, wtemp, n * MB_LEN_MAX);
304 			if (r == (size_t)-1) {
305 				(void) fprintf(stderr,
306 			gettext("Invalid character in the menu definition.\n"));
307 				exit(1);
308 			}
309 			if (setitem(mp, temp)) {
310 				(void) fprintf(stderr, gettext(INTERR), prog);
311 				exit(1);
312 			}
313 		}
314 	}
315 
316 	while (optind < argc) {
317 		if (setitem(mp, argv[optind++])) {
318 			(void) fprintf(stderr, gettext(INTERR), prog);
319 			exit(1);
320 		}
321 	}
322 
323 	for (n = 0; n < ninvis; ) {
324 		if (setinvis(mp, invis[n++])) {
325 			(void) fprintf(stderr, gettext(INTERR), prog);
326 			exit(1);
327 		}
328 	}
329 
330 	if (*prog == 'e') {
331 		ckindent = 0;
332 		ckitem_err(mp, error);
333 		exit(0);
334 	} else if (*prog == 'h') {
335 		ckindent = 0;
336 		ckitem_hlp(mp, help);
337 		exit(0);
338 	}
339 
340 	if (max < 1) {
341 		mmax = mp->nchoices;
342 	} else {
343 		mmax = max;
344 	}
345 
346 /*
347  * if -o option is specified, mp->nchoices is 1, and if no invisible
348  * item is specified, ckitem() will consume two entries of item,
349  * even though 'max' is set to 1. So to take care of that problem, we
350  * allocate one extra element for item
351  */
352 	item = (char **)calloc(mmax+1, sizeof (char *));
353 	if (!item) {
354 		(void) fprintf(stderr,
355 			gettext("Not enough memory\n"));
356 		exit(1);
357 	}
358 	n = ckitem(mp, item, max, deflt, error, help, prompt);
359 	if (n == 3) {
360 		if (kpid > -2)
361 			(void) kill(kpid, signo);
362 		(void) puts("q");
363 	} else if (n == 0) {
364 		i = 0;
365 		while (item[i])
366 			(void) puts(item[i++]);
367 	}
368 	return (n);
369 }
370