usr.bin/tset/wrterm.c

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)wrterm.c 8.1 (Berkeley) 6/9/93
  30  * $FreeBSD: src/usr.bin/tset/wrterm.c,v 1.3 1999/08/28 01:06:59 peter Exp $
  31  * $DragonFly: src/usr.bin/tset/wrterm.c,v 1.5 2008/10/16 01:52:34 swildner Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <ctype.h>
  36 #include <err.h>
  37 #include <stdio.h>
  38 #include <string.h>
  39 #include "extern.h"
  40
  41 /*
  42  * Output termcap entry to stdout, quoting characters that would give the
  43  * shell problems and omitting empty fields.
  44  */
  45 void
  46 wrtermcap(char *bp)
  47 {
  48         int ch;
  49         char *p;
  50         char *t, *sep;
  51
  52         /* Find the end of the terminal names. */
  53         if ((t = strchr(bp, ':')) == NULL)
  54                 errx(1, "termcap names not colon terminated");
  55         *t++ = '\0';
  56
  57         /* Output terminal names that don't have whitespace. */
  58         sep = strdup("");
  59         while ((p = strsep(&bp, "|")) != NULL)
  60                 if (*p != '\0' && strpbrk(p, " \t") == NULL) {
  61                         (void)printf("%s%s", sep, p);
  62                         sep = strdup("|");
  63                 }
  64         (void)putchar(':');
  65
  66         /*
  67          * Output fields, transforming any dangerous characters.  Skip
  68          * empty fields or fields containing only whitespace.
  69          */
  70         while ((p = strsep(&t, ":")) != NULL) {
  71                 while ((ch = *p) != '\0' && isspace(ch))
  72                         ++p;
  73                 if (ch == '\0')
  74                         continue;
  75                 while ((ch = *p++) != '\0')
  76                         switch(ch) {
  77                         case '\033':
  78                                 (void)printf("\\E");
  79                         case  ' ':              /* No spaces. */
  80                                 (void)printf("\\040");
  81                                 break;
  82                         case '!':               /* No csh history chars. */
  83                                 (void)printf("\\041");
  84                                 break;
  85                         case ',':               /* No csh history chars. */
  86                                 (void)printf("\\054");
  87                                 break;
  88                         case '"':               /* No quotes. */
  89                                 (void)printf("\\042");
  90                                 break;
  91                         case '\'':              /* No quotes. */
  92                                 (void)printf("\\047");
  93                                 break;
  94                         case '`':               /* No quotes. */
  95                                 (void)printf("\\140");
  96                                 break;
  97                         case '\\':              /* Anything following is OK. */
  98                         case '^':
  99                                 (void)putchar(ch);
 100                                 if ((ch = *p++) == '\0')
 101                                         break;
 102                                 /* FALLTHROUGH */
 103                         default:
 104                                 (void)putchar(ch);
 105                 }
 106                 (void)putchar(':');
 107         }
 108 }