r44: cp_check_root

[carnet-tools-cn.git] / functions.sh

diff --git a/functions.sh b/functions.sh
index 3141959..a818b34 100644 (file)
--- a/functions.sh
+++ b/functions.sh
@@ -264,7 +264,7 @@ cp_yes_no () {
   # check to prevent user from using this when debconf is active
   # (it would break communication with its backend - uses stdin/out)
   if [ "$DEBCONF_REDIR" ]; then
-    echo "cn_yes_no: debconf redirection detected" >&2
+    echo "cp_yes_no: debconf redirection detected" >&2
     return 1
   fi
 
@@ -295,9 +295,17 @@ cp_yes_no () {
 # --> that's why we wrap the db_get call to return unset RET variable
 #     instead of some gibberish error message that our script does
 #     not expect
-cp_db_get_wrap() {
+cp_db_get() {
   local var
   var="$1"
+  
+  # check to prevent user from using this before activating debconf
+  # confmodule needs to be loaded before accessing db_* functions
+  if [ -z "$DEBCONF_REDIR" ]; then
+    echo "cp_db_get: debconf not activated!" >&2
+    return 1
+  fi
+ 
   if ! db_get "$var"; then
     case "$RET" in
         *doesn\'t\ exist)
@@ -310,3 +318,18 @@ cp_db_get_wrap() {
   fi
 }
 
+# by ddzeko, Tue, 05 Apr 2005 15:47:37 +0200
+# - check is the script run by effective root
+cp_check_root() {
+  local euid
+  euid=`awk 'BEGIN{print PROCINFO["euid"]}'`
+  case "$euid" in
+    0)  RET=y  
+        return 0   ;;
+    ?*) RET=n
+        return 1   ;;
+    *)  RET=""
+        echo "cp_check_root: cannot determine euid" 2>&1 
+        ;;
+  esac
+}