usr.bin/window/wwterminfo.c

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