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 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include <stdio.h>
44
45 /*
46 * Convert a character, making appropriate changes to make it printable
47 * for a terminfo source entry. Change escape to \E, tab to \t, backspace
48 * to \b, formfeed to \f, newline to \n, and return to \r. Change other
49 * control characters into ^X notation. Change meta characters into octal
50 * (\nnn) notation. Also place a backslash in front of commas,
51 * carets(^), and backslashes(\). Return the number of characters printed.
52 */
53
54 #define BACKSLASH '\\'
55 #define BACKBACK "\\\\"
56
57 static char retbuffer[1024];
58
59 /*
60 * Expand a string taking terminfo sequences into consideration.
61 */
62 char
iexpand(char * string)63 *iexpand(char *string)
64 {
65 int c;
66 char *retptr = retbuffer;
67
68 retbuffer[0] = '\0';
69 while ((c = *string++) != 0) {
70 /* should check here to make sure that there is enough room */
71 /* in retbuffer and realloc it if necessary. */
72 c &= 0377;
73 /* we ignore the return value from sprintf because BSD/V7 */
74 /* systems return a (char *) rather than an int. */
75 if (c >= 0200) {
76 (void) sprintf(retptr, "\\%.3o", c); retptr += 4; }
77 else if (c == '\033') {
78 (void) sprintf(retptr, "\\E"); retptr += 2; }
79 else if (c == '\t') {
80 (void) sprintf(retptr, "\\t"); retptr += 2; }
81 else if (c == '\b') {
82 (void) sprintf(retptr, "\\b"); retptr += 2; }
83 else if (c == '\f') {
84 (void) sprintf(retptr, "\\f"); retptr += 2; }
85 else if (c == '\n') {
86 (void) sprintf(retptr, "\\n"); retptr += 2; }
87 else if (c == '\r') {
88 (void) sprintf(retptr, "\\r"); retptr += 2; }
89 else if (c == ',') {
90 (void) sprintf(retptr, "\\,"); retptr += 2; }
91 else if (c == '^') {
92 (void) sprintf(retptr, "\\^"); retptr += 2; }
93 else if (c == BACKSLASH) {
94 (void) sprintf(retptr, BACKBACK); retptr += 2; }
95 else if (c == ' ') {
96 (void) sprintf(retptr, "\\s"); retptr += 2; }
97 else if (c < ' ' || c == 0177) {
98 (void) sprintf(retptr, "^%c", c ^ 0100); retptr += 2; }
99 else {
100 (void) sprintf(retptr, "%c", c); retptr++; }
101 }
102 *retptr = '\0';
103 return (retbuffer);
104 }
105
106 /*
107 * Print out a string onto a stream, changing unprintables into
108 * terminfo printables.
109 */
110 void
tpr(FILE * stream,char * string)111 tpr(FILE *stream, char *string)
112 {
113 if (string != NULL)
114 (void) fprintf(stream, "%s", iexpand(string));
115 }
116