tput.c revision 1.19
1 /* $NetBSD: tput.c,v 1.19 2008/07/21 14:19:27 lukem 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 1.19 2008/07/21 14:19:27 lukem 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 <termcap.h> 52 #include <unistd.h> 53 54 static int outc(int); 55 static void prlongname(char *); 56 static void setospeed(void); 57 static void usage(void) __dead; 58 static char **process(const char *, char *, char **); 59 60 int 61 main(int argc, char **argv) 62 { 63 int ch, exitval, n; 64 char *cptr, *term, buf[1024], tbuf[1024]; 65 const char *p; 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 if (tgetent(tbuf, term) != 1) 84 err(2, "tgetent failure"); 85 setospeed(); 86 for (exitval = 0; (p = *argv) != NULL; ++argv) { 87 switch (*p) { 88 case 'c': 89 if (!strcmp(p, "clear")) 90 p = "cl"; 91 break; 92 case 'i': 93 if (!strcmp(p, "init")) 94 p = "is"; 95 break; 96 case 'l': 97 if (!strcmp(p, "longname")) { 98 prlongname(tbuf); 99 continue; 100 } 101 break; 102 case 'r': 103 if (!strcmp(p, "reset")) 104 p = "rs"; 105 break; 106 } 107 cptr = buf; 108 if (tgetstr(p, &cptr)) 109 argv = process(p, buf, argv); 110 else if ((n = tgetnum(p)) != -1) 111 (void)printf("%d\n", n); 112 else 113 exitval = !tgetflag(p); 114 115 if (argv == NULL) 116 break; 117 } 118 return argv ? exitval : 2; 119 } 120 121 static void 122 prlongname(char *buf) 123 { 124 int savech; 125 char *p, *savep; 126 127 for (p = buf; *p && *p != ':'; ++p) 128 continue; 129 savech = *(savep = p); 130 for (*p = '\0'; p >= buf && *p != '|'; --p) 131 continue; 132 (void)printf("%s\n", p + 1); 133 *savep = savech; 134 } 135 136 static char ** 137 process(const char *cap, char *str, char **argv) 138 { 139 static const char errfew[] = 140 "Not enough arguments (%d) for capability `%s'"; 141 static const char errmany[] = 142 "Too many arguments (%d) for capability `%s'"; 143 static const char erresc[] = 144 "Unknown %% escape `%c' for capability `%s'"; 145 char *cp; 146 int arg_need, arg_rows, arg_cols; 147 148 /* Count how many values we need for this capability. */ 149 for (cp = str, arg_need = 0; *cp != '\0'; cp++) 150 if (*cp == '%') 151 switch (*++cp) { 152 case 'd': 153 case '2': 154 case '3': 155 case '.': 156 case '+': 157 arg_need++; 158 break; 159 case '%': 160 case '>': 161 case 'i': 162 case 'r': 163 case 'n': 164 case 'B': 165 case 'D': 166 break; 167 default: 168 /* 169 * hpux has lot's of them, but we complain 170 */ 171 errx(2, erresc, *cp, cap); 172 } 173 174 /* And print them. */ 175 switch (arg_need) { 176 case 0: 177 (void)tputs(str, 1, outc); 178 break; 179 case 1: 180 arg_cols = 0; 181 182 if (*++argv == NULL || *argv[0] == '\0') 183 errx(2, errfew, 1, cap); 184 arg_rows = atoi(*argv); 185 186 (void)tputs(tgoto(str, arg_cols, arg_rows), 1, outc); 187 break; 188 case 2: 189 if (*++argv == NULL || *argv[0] == '\0') 190 errx(2, errfew, 2, cap); 191 arg_rows = atoi(*argv); 192 193 if (*++argv == NULL || *argv[0] == '\0') 194 errx(2, errfew, 2, cap); 195 arg_cols = atoi(*argv); 196 197 (void)tputs(tgoto(str, arg_cols, arg_rows), arg_rows, outc); 198 break; 199 200 default: 201 errx(2, errmany, arg_need, cap); 202 } 203 return argv; 204 } 205 206 static void 207 setospeed(void) 208 { 209 #undef ospeed 210 extern short ospeed; 211 struct termios t; 212 213 if (tcgetattr(STDOUT_FILENO, &t) != -1) 214 ospeed = 0; 215 else 216 ospeed = cfgetospeed(&t); 217 } 218 219 static int 220 outc(c) 221 int c; 222 { 223 return putchar(c); 224 } 225 226 static void 227 usage(void) 228 { 229 (void)fprintf(stderr, 230 "Usage: %s [-T term] attribute [attribute-args] ...\n", 231 getprogname()); 232 exit(2); 233 } 234
Indexes created Tue Sep 30 11:09:46 GMT 2025