passwort-tresor: interprete search string as literal first

1 files changed, 13 insertions, 5 deletions

diff --git a/passwort-tresor.in b/passwort-tresor.in
index fd7c6ae..4611f83 100644
--- a/passwort-tresor.in
+++ b/passwort-tresor.in
@@ -197,13 +197,21 @@ beiFehlerBeenden 1
 
 if ${greppw}
 then
-  for suchStr in "${suche}" "${suche}.*:\$" "^${suche}.*:\$" "^${suche}:\$" ""
-  do
-    [ $(grep -c "${suchStr}" "${tmpDir}/output") -eq 1 ] && break
+  count=0
+  for subst in 's/[.[]/\\\0/g' ''; do
+    sucheSubst=$(
+      echo "${suche}" | \
+        sed "${subst}"
+    )
+    for suchStr in "${sucheSubst}" "${sucheSubst}.*:\$" "^${sucheSubst}.*:\$" "^${sucheSubst}:\$"
+    do
+      count=$(grep -c "${suchStr}" "${tmpDir}/output")
+      [ "${count}" -eq 1 ] && break
+    done
   done
-  if [ -z "${suchStr}" ]
+  if [ "${count}" -ne 1 ]
   then
-    >&2 echo "'${suche}' ist nicht genau ein Mal vorhanden!"
+    >&2 printf '"%s" ist nicht genau ein Mal vorhanden!\n' "${suche}"
     beenden 1
   fi
   output="$(grep -2 "${suchStr}" "${tmpDir}/output" | tail -n2)"