Improve MinGW support in Readline

[deliverable/binutils-gdb.git] / readline / shell.c

diff --git a/readline/shell.c b/readline/shell.c
index ad27cc14884b8fbb09404705fff9761a53366ab8..ac0fb3604b8a9d6abcfbfcea6ee79e5f3cad549e 100644 (file)
--- a/readline/shell.c
+++ b/readline/shell.c
@@ -1,25 +1,25 @@
 /* shell.c -- readline utility functions that are normally provided by
              bash when readline is linked as part of the shell. */
 
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2009 Free Software Foundation, Inc.
 
-   This file is part of the GNU Readline Library, a library for
-   reading lines of text with interactive input and history editing.
+   This file is part of the GNU Readline Library (Readline), a library
+   for reading lines of text with interactive input and history editing.      
 
-   The GNU Readline Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2, or
+   Readline is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
-   The GNU Readline Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   Readline is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   The GNU General Public License is often shipped with GNU software, and
-   is generally kept in a file called COPYING or LICENSE.  If you do not
-   have a copy of the license, write to the Free Software Foundation,
-   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+   You should have received a copy of the GNU General Public License
+   along with Readline.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #define READLINE_LIBRARY
 
 #if defined (HAVE_CONFIG_H)
@@ -48,8 +48,12 @@
 #  include <limits.h>
 #endif
 
+#if defined (HAVE_FCNTL_H)
 #include <fcntl.h>
+#endif
+#if defined (HAVE_PWD_H)
 #include <pwd.h>
+#endif
 
 #include <stdio.h>
 
@@ -57,9 +61,9 @@
 #include "rlshell.h"
 #include "xmalloc.h"
 
-#if !defined (HAVE_GETPW_DECLS)
+#if defined (HAVE_GETPWUID) && !defined (HAVE_GETPW_DECLS)
 extern struct passwd *getpwuid PARAMS((uid_t));
-#endif /* !HAVE_GETPW_DECLS */
+#endif /* HAVE_GETPWUID && !HAVE_GETPW_DECLS */
 
 #ifndef NULL
 #  define NULL 0
@@ -122,23 +126,27 @@ sh_set_lines_and_columns (lines, cols)
 {
   char *b;
 
-#if defined (HAVE_PUTENV)
-  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("LINES=") + 1);
-  sprintf (b, "LINES=%d", lines);
-  putenv (b);
-  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("COLUMNS=") + 1);
-  sprintf (b, "COLUMNS=%d", cols);
-  putenv (b);
-#else /* !HAVE_PUTENV */
-#  if defined (HAVE_SETENV)
+#if defined (HAVE_SETENV)
   b = (char *)xmalloc (INT_STRLEN_BOUND (int) + 1);
   sprintf (b, "%d", lines);
   setenv ("LINES", b, 1);
+  xfree (b);
+
   b = (char *)xmalloc (INT_STRLEN_BOUND (int) + 1);
   sprintf (b, "%d", cols);
   setenv ("COLUMNS", b, 1);
-#  endif /* HAVE_SETENV */
-#endif /* !HAVE_PUTENV */
+  xfree (b);
+#else /* !HAVE_SETENV */
+#  if defined (HAVE_PUTENV)
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("LINES=") + 1);
+  sprintf (b, "LINES=%d", lines);
+  putenv (b);
+
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("COLUMNS=") + 1);
+  sprintf (b, "COLUMNS=%d", cols);
+  putenv (b);
+#  endif /* HAVE_PUTENV */
+#endif /* !HAVE_SETENV */
 }
 
 char *
@@ -155,9 +163,11 @@ sh_get_home_dir ()
   struct passwd *entry;
 
   home_dir = (char *)NULL;
+#if defined (HAVE_GETPWUID)
   entry = getpwuid (getuid ());
   if (entry)
     home_dir = entry->pw_dir;
+#endif
   return (home_dir);
 }
 
@@ -171,6 +181,7 @@ int
 sh_unset_nodelay_mode (fd)
      int fd;
 {
+#if defined (HAVE_FCNTL)
   int flags, bflags;
 
   if ((flags = fcntl (fd, F_GETFL, 0)) < 0)
@@ -191,6 +202,7 @@ sh_unset_nodelay_mode (fd)
       flags &= ~bflags;
       return (fcntl (fd, F_SETFL, flags));
     }
+#endif
 
   return 0;
 }