Don't abort for invalid input, print an error message instead.

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

diff --git a/readline/shell.c b/readline/shell.c
index 553f3c1cc902b2162872d8f393468cee6b376fff..b32726c690a206ed2e56d88f33c7404f6d525df2 100644 (file)
--- a/readline/shell.c
+++ b/readline/shell.c
@@ -8,7 +8,7 @@
 
    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 1, or
+   as published by the Free Software Foundation; either version 2, or
    (at your option) any later version.
 
    The GNU Readline Library is distributed in the hope that it will be
@@ -19,17 +19,17 @@
    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,
-   675 Mass Ave, Cambridge, MA 02139, USA. */
+   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
 #define READLINE_LIBRARY
 
 #if defined (HAVE_CONFIG_H)
 #  include <config.h>
 #endif
 
+#include <sys/types.h>
+#include <stdio.h>
+
 #if defined (HAVE_UNISTD_H)
-#  ifdef _MINIX
-#    include <sys/types.h>
-#  endif
 #  include <unistd.h>
 #endif /* HAVE_UNISTD_H */
 
@@ -45,22 +45,24 @@
 #  include <strings.h>
 #endif /* !HAVE_STRING_H */
 
-extern char *xmalloc (), *xrealloc ();
+#include <fcntl.h>
+#include <pwd.h>
+
+#include <stdio.h>
+
+#include "rlshell.h"
+#include "xmalloc.h"
 
-#if !defined (SHELL)
+#if !defined (HAVE_GETPW_DECLS)
+extern struct passwd *getpwuid ();
+#endif /* !HAVE_GETPW_DECLS */
 
-#ifdef savestring
-#undef savestring
+#ifndef NULL
+#  define NULL 0
 #endif
 
-/* Backwards compatibility, now that savestring has been removed from
-   all `public' readline header files. */
-char *
-savestring (s)
-     char *s;
-{
-  return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s)));
-}
+/* All of these functions are resolved from bash if we are linking readline
+   as part of bash. */
 
 /* Does shell-like quoting using single quotes. */
 char *
@@ -70,7 +72,7 @@ single_quote (string)
   register int c;
   char *result, *r, *s;
 
-  result = (char *)xmalloc (3 + (3 * strlen (string)));
+  result = (char *)xmalloc (3 + (4 * strlen (string)));
   r = result;
   *r++ = '\'';
 
@@ -126,13 +128,49 @@ get_env_value (varname)
   return ((char *)getenv (varname));
 }
 
-#else /* SHELL */
-extern char *get_string_value ();
-
 char *
-get_env_value (varname)
-     char *varname;
+get_home_dir ()
 {
-  return get_string_value (varname);
-}      
-#endif /* SHELL */
+  char *home_dir;
+  struct passwd *entry;
+
+  home_dir = (char *)NULL;
+  entry = getpwuid (getuid ());
+  if (entry)
+    home_dir = entry->pw_dir;
+  return (home_dir);
+}
+
+#if !defined (O_NDELAY)
+#  if defined (FNDELAY)
+#    define O_NDELAY FNDELAY
+#  endif
+#endif
+
+int
+unset_nodelay_mode (fd)
+     int fd;
+{
+  int flags, bflags;
+
+  if ((flags = fcntl (fd, F_GETFL, 0)) < 0)
+    return -1;
+
+  bflags = 0;
+
+#ifdef O_NONBLOCK
+  bflags |= O_NONBLOCK;
+#endif
+
+#ifdef O_NDELAY
+  bflags |= O_NDELAY;
+#endif
+
+  if (flags & bflags)
+    {
+      flags &= ~bflags;
+      return (fcntl (fd, F_SETFL, flags));
+    }
+
+  return 0;
+}