1 /* $NetBSD: tput.c,v 1.20 2010/02/03 15:34:46 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 1.20 2010/02/03 15:34:46 roy Exp $"); 43 #endif /* not lint */ 44 45 #include <termios.h> 46 47 #include <err.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <term.h> 52 #include <termcap.h> 53 #include <unistd.h> 54 55 static int outc(int); 56 static void prlongname(char *); 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, tbuf[1024]; 65 const char *p, *s; 66 67 term = NULL; 68 while ((ch = getopt(argc, argv, "T:")) != -1) 69 switch(ch) { 70 case 'T': 71 term = optarg; 72 break; 73 case '?': 74 default: 75 usage(); 76 } 77 argc -= optind; 78 argv += optind; 79 80 if (!term && !(term = getenv("TERM"))) 81 errx(2, "No terminal type specified and no TERM " 82 "variable set in the environment."); 83 setupterm(term, 0, NULL); 84 for (exitval = 0; (p = *argv) != NULL; ++argv) { 85 switch (*p) { 86 case 'c': 87 if (!strcmp(p, "clear")) 88 p = "clear"; 89 break; 90 case 'i': 91 if (!strcmp(p, "init")) { 92 s = tigetstr("is1"); 93 if (s != NULL) 94 tputs(s, 0, outc); 95 p = "is2"; 96 } 97 break; 98 case 'l': 99 if (!strcmp(p, "longname")) { 100 prlongname(tbuf); 101 continue; 102 } 103 break; 104 case 'r': 105 if (!strcmp(p, "reset")) { 106 s = tigetstr("rs1"); 107 if (s != NULL) 108 tputs(s, 0, outc); 109 p = "rs2"; 110 } 111 break; 112 } 113 if (((s = tigetstr(p)) != NULL && s != (char *)-1) || 114 ((s = tgetstr(p, NULL)) != NULL)) 115 argv = process(p, s, argv); 116 else if ((((n = tigetnum(p)) != -1 && n != -2 )|| 117 (n = tgetnum(p)) != -1)) 118 (void)printf("%d\n", n); 119 else { 120 exitval = tigetflag(p); 121 if (exitval == -1) 122 exitval = !tgetflag(p); 123 else 124 exitval = !exitval; 125 } 126 127 if (argv == NULL) 128 break; 129 } 130 return argv ? exitval : 2; 131 } 132 133 static void 134 prlongname(char *buf) 135 { 136 int savech; 137 char *p, *savep; 138 139 for (p = buf; *p && *p != ':'; ++p) 140 continue; 141 savech = *(savep = p); 142 for (*p = '\0'; p >= buf && *p != '|'; --p) 143 continue; 144 (void)printf("%s\n", p + 1); 145 *savep = savech; 146 } 147 148 static char ** 149 process(const char *cap, const char *str, char **argv) 150 { 151 static const char errfew[] = 152 "Not enough arguments (%d) for capability `%s'"; 153 static const char erresc[] = 154 "Unknown %% escape `%c' for capability `%s'"; 155 char c, l; 156 const char *p; 157 int arg_need, p1, p2, p3, p4, p5, p6, p7, p8, p9; 158 159 /* Count how many values we need for this capability. */ 160 arg_need = 0; 161 p = str; 162 while ((c = *p++) != '\0') { 163 if (c != '%') 164 continue; 165 c = *p++; 166 if (c == '\0') 167 break; 168 if (c != 'p') 169 continue; 170 c = *p++; 171 if (c < '1' || c > '9') 172 errx(2, erresc, c, cap); 173 l = c - '0'; 174 if (l > arg_need) 175 arg_need = l; 176 } 177 178 #define NEXT_ARG \ 179 { \ 180 if (*++argv == NULL || *argv[0] == '\0') \ 181 errx(2, errfew, 1, cap); \ 182 } 183 184 if (arg_need > 0) { 185 NEXT_ARG; 186 p1 = atoi(*argv); 187 } else 188 p1 = 0; 189 if (arg_need > 1) { 190 NEXT_ARG; 191 p2 = atoi(*argv); 192 } else 193 p2 = 0; 194 if (arg_need > 2) { 195 NEXT_ARG; 196 p3 = atoi(*argv); 197 } else 198 p3 = 0; 199 if (arg_need > 3) { 200 NEXT_ARG; 201 p4 = atoi(*argv); 202 } else 203 p4 = 0; 204 if (arg_need > 4) { 205 NEXT_ARG; 206 p5 = atoi(*argv); 207 } else 208 p5 = 0; 209 if (arg_need > 5) { 210 NEXT_ARG; 211 p6 = atoi(*argv); 212 } else 213 p6 = 0; 214 if (arg_need > 6) { 215 NEXT_ARG; 216 p7 = atoi(*argv); 217 } else 218 p7 = 0; 219 if (arg_need > 7) { 220 NEXT_ARG; 221 p8 = atoi(*argv); 222 } else 223 p8 = 0; 224 if (arg_need > 8) { 225 NEXT_ARG; 226 p9 = atoi(*argv); 227 } else 228 p9 = 0; 229 230 /* And print them. */ 231 (void)tputs(tparm(str, p1, p2, p3, p4, p5, p6, p7, p8, p9), 0, outc); 232 return argv; 233 } 234 235 static int 236 outc(int c) 237 { 238 return putchar(c); 239 } 240 241 static void 242 usage(void) 243 { 244 (void)fprintf(stderr, 245 "Usage: %s [-T term] attribute [attribute-args] ...\n", 246 getprogname()); 247 exit(2); 248 } 249