minor optimisation

[cgilite] / file.sh

diff --git a/file.sh b/file.sh
index 06f28d02f5640abfbfd560641348e8c8e8cd6e22..82eefae0af0298b09a64261913947d0622752aba 100755 (executable)
--- a/file.sh
+++ b/file.sh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#!/bin/sh
 
 # Copyright 2016 - 2018 Paul Hänsch
 #
@@ -40,7 +40,7 @@ file_type(){
 }
 
 FILE(){
-  unset range file_size file_date http_date cachedate
+  local file file_size file_date http_date cachedate range
   file="$1"
 
   if ! [ -f "$file" ]; then
@@ -66,7 +66,7 @@ FILE(){
               s;^[^ ]+ (...)  ([0-9]) (..:..:..) ([0-9]{4})$;\4-\1-\2 \3;;
               s;Jan;01;; s;Feb;02;; s;Mar;03;; s;Apr;04;; s;May;05;; s;Jun;06;;
               s;Jul;07;; s;Aug;08;; s;Sep;09;; s;Oct;10;; s;Nov;11;; s;Dec;12;;' \
-    | xargs -0 date +%s -ud 2>&-
+    | xargs -r0 date +%s -ud 2>&-
   )"
 
   range="$(HEADER Range |sed -nr 's;^bytes=([0-9]+-[0-9]*|-[0-9]+)$;\1;p;q;')"
@@ -109,7 +109,7 @@ FILE(){
   
     [ "$REQUEST_METHOD" != HEAD ] \
     && tail -c+$((${range%-*} + 1)) "$file" \
-       | head -c "$((${range#*-} - ${range%-*} + 1))"
+     | head -c "$((${range#*-} - ${range%-*} + 1))"
 
   elif [ "${range%-*}" -gt "${range#*-}" ]; then
     printf '%s: %s\r\n' \