* subpipe.c (init_subpipe): Check the environment variables

TMPDIR, TMP and TEMP, in that order, to determinate where the temp
files shall be created.  Before trying to use the temp dir where the
environment variable points to check that the dir really exists. If
not default to the cwd as temp dir.  Copyright timestamp adjusted.

1 files changed, 14 insertions, 3 deletions

diff --git a/djgpp/subpipe.c b/djgpp/subpipe.c
index 881ebaa2..955dcd2e 100644
--- a/djgpp/subpipe.c
+++ b/djgpp/subpipe.c
@@ -1,6 +1,6 @@
 /* Subprocesses with pipes.
 
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -67,15 +67,26 @@ static char tmp_file_name[2][L_tmpnam];
 void
 init_subpipe(void)
 {
+  char *tmpdir;
   int fd;
 
-  strcpy(tmp_file_name[0], "/dev/env/TMPDIR/bnXXXXXX");
+  tmpdir = getenv("TMPDIR");
+  if (tmpdir == NULL)
+    tmpdir = getenv("TMP");
+  if (tmpdir == NULL)
+    tmpdir = getenv("TEMP");
+  if (access(tmpdir, D_OK))
+    tmpdir = ".";
+
+  strcpy(tmp_file_name[0], tmpdir);
+  strcat(tmp_file_name[0], "/bnXXXXXX");
   fd = mkstemp(tmp_file_name[0]);
   if (fd < 0)
     error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));
   close (fd);
 
-  strcpy(tmp_file_name[1], "/dev/env/TMPDIR/bnXXXXXX");
+  strcpy(tmp_file_name[1], tmpdir);
+  strcat(tmp_file_name[1], "/bnXXXXXX");
   fd = mkstemp(tmp_file_name[1]);
   if (fd < 0)
     error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));