1 /* $NetBSD: tput.c,v 1.22 2011/10/04 12:23:14 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 1.22 2011/10/04 12:23:14 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 usage(void) __dead; 57 static char **process(const char *, const char *, char **); 58 59 int 60 main(int argc, char **argv) 61 { 62 int ch, exitval, n; 63 char *term; 64 const char *p, *s; 65 size_t pl; 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 (void)printf("%s\n", longname()); 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 pl = strlen(p); 114 if (((s = tigetstr(p)) != NULL && s != (char *)-1) || 115 (pl <= 2 && (s = tgetstr(p, NULL)) != NULL)) 116 argv = process(p, s, argv); 117 else if ((((n = tigetnum(p)) != -1 && n != -2 ) || 118 (pl <= 2 && (n = tgetnum(p)) != -1))) 119 (void)printf("%d\n", n); 120 else { 121 exitval = tigetflag(p); 122 if (exitval == -1) { 123 if (pl <= 2) 124 exitval = !tgetflag(p); 125 else 126 exitval = 1; 127 } else 128 exitval = !exitval; 129 } 130 131 if (argv == NULL) 132 break; 133 } 134 return argv ? exitval : 2; 135 } 136 137 static char ** 138 process(const char *cap, const char *str, char **argv) 139 { 140 static const char errfew[] = 141 "Not enough arguments (%d) for capability `%s'"; 142 static const char erresc[] = 143 "Unknown %% escape `%c' for capability `%s'"; 144 char c, l; 145 const char *p; 146 int arg_need, p1, p2, p3, p4, p5, p6, p7, p8, p9; 147 148 /* Count how many values we need for this capability. */ 149 arg_need = 0; 150 p = str; 151 while ((c = *p++) != '\0') { 152 if (c != '%') 153 continue; 154 c = *p++; 155 if (c == '\0') 156 break; 157 if (c != 'p') 158 continue; 159 c = *p++; 160 if (c < '1' || c > '9') 161 errx(2, erresc, c, cap); 162 l = c - '0'; 163 if (l > arg_need) 164 arg_need = l; 165 } 166 167 #define NEXT_ARG \ 168 { \ 169 if (*++argv == NULL || *argv[0] == '\0') \ 170 errx(2, errfew, 1, cap); \ 171 } 172 173 if (arg_need > 0) { 174 NEXT_ARG; 175 p1 = atoi(*argv); 176 } else 177 p1 = 0; 178 if (arg_need > 1) { 179 NEXT_ARG; 180 p2 = atoi(*argv); 181 } else 182 p2 = 0; 183 if (arg_need > 2) { 184 NEXT_ARG; 185 p3 = atoi(*argv); 186 } else 187 p3 = 0; 188 if (arg_need > 3) { 189 NEXT_ARG; 190 p4 = atoi(*argv); 191 } else 192 p4 = 0; 193 if (arg_need > 4) { 194 NEXT_ARG; 195 p5 = atoi(*argv); 196 } else 197 p5 = 0; 198 if (arg_need > 5) { 199 NEXT_ARG; 200 p6 = atoi(*argv); 201 } else 202 p6 = 0; 203 if (arg_need > 6) { 204 NEXT_ARG; 205 p7 = atoi(*argv); 206 } else 207 p7 = 0; 208 if (arg_need > 7) { 209 NEXT_ARG; 210 p8 = atoi(*argv); 211 } else 212 p8 = 0; 213 if (arg_need > 8) { 214 NEXT_ARG; 215 p9 = atoi(*argv); 216 } else 217 p9 = 0; 218 219 /* And print them. */ 220 (void)tputs(tparm(str, p1, p2, p3, p4, p5, p6, p7, p8, p9), 0, outc); 221 return argv; 222 } 223 224 static int 225 outc(int c) 226 { 227 return putchar(c); 228 } 229 230 static void 231 usage(void) 232 { 233 (void)fprintf(stderr, 234 "Usage: %s [-T term] attribute [attribute-args] ...\n", 235 getprogname()); 236 exit(2); 237 } 238