fixed some problems with bash

Change-Id: Iedaf7c28c25149755e6e4a20810043cf64ed8c84

builtins/common.c

@@ -625,10 +625,23 @@ get_working_directory (for_whom)
 
   if (the_current_working_directory == 0)
     {
-#if defined (GETCWD_BROKEN)
-      the_current_working_directory = getcwd (0, PATH_MAX);
+#if defined (__BIONIC__)
+      /**
+       * This is a really lame work around to try to stop bash from flipping
+       * out if PWD isn't defined when starting it up on bionic
+       */
+      char *d = (char *)malloc(sizeof(char) * PATH_MAX);
+      the_current_working_directory = getcwd (d, sizeof(d));
+      if (the_current_working_directory)
+        the_current_working_directory = d;
+      else
+        FREE (d);
 #else
+# if defined (GETCWD_BROKEN)
+      the_current_working_directory = getcwd (0, PATH_MAX);
+# else
       the_current_working_directory = getcwd (0, 0);
+# endif
 #endif
       if (the_current_working_directory == 0)
 	{

etc/bashrc

@@ -23,18 +23,24 @@ shopt -s checkwinsize
 # Enable history appending instead of overwriting.  #139609
 shopt -s histappend
 
-# Change the window title of X terminals 
-case ${TERM} in
-	screen)
-		PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"'
-		;;
-esac
+use_color=false
+
+# set some environment variables
+HOME=/sdcard
+TERM=linux
+
+# enable colorful terminal
+if [[ ${EUID} == 0 ]] ; then
+	PS1='\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
+else
+	PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
+fi
 
 # Set up a ton of aliases to cover toolbox with the nice busybox
 # equivalents of its commands
 alias cat='busybox cat'
 alias ln='busybox ln'
-alias ls='busybox ls'
+alias ls='busybox ls --color'
 alias mount='busybox mount'
 alias rm='busybox rm'
 alias umount='busybox umount'
@@ -48,46 +54,6 @@ alias insmod='busybox insmod'
 alias rmmod='busybox rmmod'
 alias lsmod='busybox lsmod'
 
-use_color=false
-
-# Set colorful PS1 only on colorful terminals.
-# dircolors --print-database uses its own built-in database
-# instead of using /etc/DIR_COLORS.  Try to use the external file
-# first to take advantage of user additions.  Use internal bash
-# globbing instead of external grep binary.
-safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
-match_lhs=""
-[[ -f /system/etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</system/etc/DIR_COLORS)"
-[[ -z ${match_lhs}    ]] \
-	&& type -P dircolors >/dev/null \
-	&& match_lhs=$(dircolors --print-database)
-[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true
-
-if ${use_color} ; then
-	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
-	if type -P dircolors >/dev/null ; then
-		if [[ -f ~/.dir_colors ]] ; then
-			eval $(dircolors -b ~/.dir_colors)
-		elif [[ -f /etc/DIR_COLORS ]] ; then
-			eval $(dircolors -b /etc/DIR_COLORS)
-		fi
-	fi
-
-	if [[ ${EUID} == 0 ]] ; then
-		PS1='\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
-	else
-		PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
-	fi
-
-	alias ls='busybox ls --color=auto'
-else
-	if [[ ${EUID} == 0 ]] ; then
-		# show root@ when we don't have colors
-		PS1='\u@\h \W \$ '
-	else
-		PS1='\u@\h \w \$ '
-	fi
-fi
-
 # Try to keep environment pollution down, EPA loves us.
 unset use_color safe_term match_lhs
+

variables.c

@@ -493,7 +493,7 @@ initialize_shell_variables (env, privmode)
   /* Now make our own defaults in case the vars that we think are
      important are missing. */
   temp_var = set_if_not ("PATH", DEFAULT_PATH_VALUE);
-  temp_var = set_if_not ("TERM", "dumb");
+  temp_var = set_if_not ("TERM", "unknown");
 
 #if defined (__QNX__)
   /* set node id -- don't import it from the environment */