1 /* $NetBSD: tput.c,v 1.26 2013/02/05 11:31:56 roy Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)tput.c 8.3 (Berkeley) 4/28/95"; 41 #endif 42 __RCSID("$NetBSD: tput.c,v 1.26 2013/02/05 11:31:56 roy Exp $"); 43 #endif /* not lint */ 44 45 #include <termios.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <limits.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <term_private.h> 54 #include <term.h> 55 #include <unistd.h> 56 57 static void usage(void) __dead; 58 static char **process(const char *, const char *, char **); 59 60 int 61 main(int argc, char **argv) 62 { 63 int ch, exitval, n; 64 char *term; 65 const char *p, *s; 66 size_t pl; 67 68 term = NULL; 69 while ((ch = getopt(argc, argv, "T:")) != -1) 70 switch(ch) { 71 case 'T': 72 term = optarg; 73 break; 74 case '?': 75 default: 76 usage(); 77 } 78 argc -= optind; 79 argv += optind; 80 81 if (!term && !(term = getenv("TERM"))) 82 errx(2, "No terminal type specified and no TERM " 83 "variable set in the environment."); 84 setupterm(term, 0, NULL); 85 for (exitval = 0; (p = *argv) != NULL; ++argv) { 86 switch (*p) { 87 case 'c': 88 if (!strcmp(p, "clear")) 89 p = "clear"; 90 break; 91 case 'i': 92 if (!strcmp(p, "init")) { 93 s = tigetstr("is1"); 94 if (s != NULL) 95 putp(s); 96 p = "is2"; 97 } 98 break; 99 case 'l': 100 if (!strcmp(p, "longname")) { 101 (void)printf("%s\n", longname()); 102 continue; 103 } 104 break; 105 case 'r': 106 if (!strcmp(p, "reset")) { 107 s = tigetstr("rs1"); 108 if (s != NULL) 109 putp(s); 110 p = "rs2"; 111 } 112 break; 113 } 114 pl = strlen(p); 115 if (((s = tigetstr(p)) != NULL && s != (char *)-1) || 116 (pl <= 2 && (s = tgetstr(p, NULL)) != NULL)) 117 argv = process(p, s, argv); 118 else if ((((n = tigetnum(p)) != -1 && n != -2 ) || 119 (pl <= 2 && (n = tgetnum(p)) != -1))) 120 (void)printf("%d\n", n); 121 else { 122 exitval = tigetflag(p); 123 if (exitval == -1) { 124 if (pl <= 2) 125 exitval = !tgetflag(p); 126 else 127 exitval = 1; 128 } else 129 exitval = !exitval; 130 } 131 132 if (argv == NULL) 133 break; 134 } 135 return argv ? exitval : 2; 136 } 137 138 static char ** 139 process(const char *cap, const char *str, char **argv) 140 { 141 static const char errfew[] = 142 "Not enough arguments (%d) for capability `%s'"; 143 static const char erresc[] = 144 "Unknown %% escape (%s) for capability `%s'"; 145 static const char errnum[] = 146 "Expected a numeric argument [%d] (%s) for capability `%s'"; 147 static const char errcharlong[] = 148 "Platform does not fit a string into a long for capability '%s'"; 149 int i, nparams, piss[TPARM_MAX]; 150 long nums[TPARM_MAX]; 151 char *strs[TPARM_MAX], *tmp; 152 153 /* Count how many values we need for this capability. */ 154 errno = 0; 155 memset(&piss, 0, sizeof(piss)); 156 nparams = _ti_parm_analyse(str, piss, TPARM_MAX); 157 if (errno == EINVAL) 158 errx(2, erresc, str, cap); 159 160 /* Create our arrays of integers and strings */ 161 for (i = 0; i < nparams; i++) { 162 if (*++argv == NULL || *argv[0] == '\0') 163 errx(2, errfew, nparams, cap); 164 if (piss[i]) { 165 if (sizeof(char *) > sizeof(long) /* CONSTCOND */) 166 errx(2, errcharlong, cap); 167 strs[i] = *argv; 168 } else { 169 errno = 0; 170 nums[i] = strtol(*argv, &tmp, 0); 171 if ((errno == ERANGE && 172 (nums[i] == LONG_MIN || nums[i] == LONG_MAX)) || 173 (errno != 0 && nums[i] == 0) || 174 tmp == str || 175 *tmp != '\0') 176 errx(2, errnum, i + 1, *argv, cap); 177 } 178 } 179 180 /* And output */ 181 #define p(i) (i <= nparams ? \ 182 (piss[i - 1] ? (long)strs[i - 1] : nums[i - 1]) : 0) 183 putp(tparm(str, p(1), p(2), p(3), p(4), p(5), p(6), p(7), p(8), p(9))); 184 185 return argv; 186 } 187 188 static void 189 usage(void) 190 { 191 (void)fprintf(stderr, 192 "Usage: %s [-T term] attribute [attribute-args] ...\n", 193 getprogname()); 194 exit(2); 195 } 196