usr.bin/window/wwterminfo.c

   1 /*      $NetBSD: wwterminfo.c,v 1.5 2003/08/07 11:17:45 agc Exp $       */
   2
   3 /*
   4  * Copyright (c) 1982, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Edward Wang at The University of California, Berkeley.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)wwterminfo.c        8.1 (Berkeley) 6/6/93";
  39 #else
  40 __RCSID("$NetBSD: wwterminfo.c,v 1.5 2003/08/07 11:17:45 agc Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 #ifdef TERMINFO
  45
  46 #include <sys/types.h>
  47 #include <sys/stat.h>
  48 #include <sys/wait.h>
  49
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <paths.h>
  53 #include <unistd.h>
  54 #include "local.h"
  55 #include "ww.h"
  56
  57 /*
  58  * Terminfo support
  59  *
  60  * Written by Brian Buhrow
  61  *
  62  * Subsequently modified by Edward Wang
  63  */
  64
  65 /*
  66  * Initialize the working terminfo directory
  67  */
  68 int
  69 wwterminfoinit()
  70 {
  71         FILE *fp;
  72         char buf[2048];
  73
  74                 /* make the directory */
  75         (void) sprintf(wwterminfopath, "%swwinXXXXXX", _PATH_TMP);
  76         if ((mkdtemp(wwterminfopath) == NULL) ||
  77             chmod(wwterminfopath, 0755) < 0) {
  78                 wwerrno = WWE_SYS;
  79                 return -1;
  80         }
  81         (void) setenv("TERMINFO", wwterminfopath, 1);
  82                 /* make a termcap entry and turn it into terminfo */
  83         (void) sprintf(buf, "%s/cap", wwterminfopath);
  84         if ((fp = fopen(buf, "w")) == NULL) {
  85                 wwerrno = WWE_SYS;
  86                 return -1;
  87         }
  88         (void) fprintf(fp, "%sco#%d:li#%d:%s\n",
  89                 WWT_TERMCAP, wwncol, wwnrow, wwwintermcap);
  90         (void) fclose(fp);
  91         (void) sprintf(buf,
  92                 "cd %s; %s cap >info 2>/dev/null; %s info >/dev/null 2>&1",
  93                 wwterminfopath, _PATH_CAPTOINFO, _PATH_TIC);
  94         (void) system(buf);
  95         return 0;
  96 }
  97
  98 /*
  99  * Delete the working terminfo directory at shutdown
 100  */
 101 int
 102 wwterminfoend()
 103 {
 104         int pstat;
 105         pid_t pid;
 106
 107         pid = vfork();
 108         switch (pid) {
 109         case -1:
 110                 /* can't really do (or say) anything about errors */
 111                 return -1;
 112         case 0:
 113                 execl(_PATH_RM, _PATH_RM, "-rf", wwterminfopath, 0);
 114                 _exit(1);
 115         }
 116         pid = waitpid(pid, &pstat, 0);
 117         if (pid == -1 || !WIFEXITED(pstat) || WEXITSTATUS(pstat) != 0)
 118                 return -1;
 119         return 0;
 120 }
 121
 122 #endif /* TERMINFO */