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 #pragma ident "%Z%%M% %I% %E% SMI"
41
42 /*LINTLIBRARY*/
43
44 #include <sys/types.h>
45 #include <stdio.h>
46
47 /*
48 * Convert a character, making appropriate changes to make it printable
49 * for a terminfo source entry. Change escape to \E, tab to \t, backspace
50 * to \b, formfeed to \f, newline to \n, and return to \r. Change other
51 * control characters into ^X notation. Change meta characters into octal
52 * (\nnn) notation. Also place a backslash in front of commas,
53 * carets(^), and backslashes(\). Return the number of characters printed.
54 */
55
56 #define BACKSLASH '\\'
57 #define BACKBACK "\\\\"
58
59 static char retbuffer[1024];
60
61 /*
62 * Expand a string taking terminfo sequences into consideration.
63 */
64 char
iexpand(char * string)65 *iexpand(char *string)
66 {
67 int c;
68 char *retptr = retbuffer;
69
70 retbuffer[0] = '\0';
71 while ((c = *string++) != 0) {
72 /* should check here to make sure that there is enough room */
73 /* in retbuffer and realloc it if necessary. */
74 c &= 0377;
75 /* we ignore the return value from sprintf because BSD/V7 */
76 /* systems return a (char *) rather than an int. */
77 if (c >= 0200) {
78 (void) sprintf(retptr, "\\%.3o", c); retptr += 4; }
79 else if (c == '\033') {
80 (void) sprintf(retptr, "\\E"); retptr += 2; }
81 else if (c == '\t') {
82 (void) sprintf(retptr, "\\t"); retptr += 2; }
83 else if (c == '\b') {
84 (void) sprintf(retptr, "\\b"); retptr += 2; }
85 else if (c == '\f') {
86 (void) sprintf(retptr, "\\f"); retptr += 2; }
87 else if (c == '\n') {
88 (void) sprintf(retptr, "\\n"); retptr += 2; }
89 else if (c == '\r') {
90 (void) sprintf(retptr, "\\r"); retptr += 2; }
91 else if (c == ',') {
92 (void) sprintf(retptr, "\\,"); retptr += 2; }
93 else if (c == '^') {
94 (void) sprintf(retptr, "\\^"); retptr += 2; }
95 else if (c == BACKSLASH) {
96 (void) sprintf(retptr, BACKBACK); retptr += 2; }
97 else if (c == ' ') {
98 (void) sprintf(retptr, "\\s"); retptr += 2; }
99 else if (c < ' ' || c == 0177) {
100 (void) sprintf(retptr, "^%c", c ^ 0100); retptr += 2; }
101 else {
102 (void) sprintf(retptr, "%c", c); retptr++; }
103 }
104 *retptr = '\0';
105 return (retbuffer);
106 }
107
108 /*
109 * Print out a string onto a stream, changing unprintables into
110 * terminfo printables.
111 */
112 void
tpr(FILE * stream,char * string)113 tpr(FILE *stream, char *string)
114 {
115 if (string != NULL)
116 (void) fprintf(stream, "%s", iexpand(string));
117 }
118