added usage of nice when ionice is not available

On some platforms (e.g. NetBSD, OS X), ionice is not available. This patch enables a fallback to nice. If neither ionice or nice are installed, an error message is displayed.

1 files changed, 26 insertions, 5 deletions

diff --git a/phpmalwarefinder b/phpmalwarefinder
index 0a85d85..15354d4 100755
--- a/phpmalwarefinder
+++ b/phpmalwarefinder
@@ -2,15 +2,29 @@
 
 YARA=$(which yara)
 CONFIG_PATH='/etc/phpmalwarefinder/malwares.yara'
+IONICE_BIN=$(which ionice)
+NICE_BIN=$(which nice)
 
 if [ ! -f "$YARA" ]
 then
-        YARA='./yara'
+        YARA='./yara'
 fi
 
 if [ ! -f "$CONFIG_PATH" ]
 then
-        CONFIG_PATH='./malwares.yara'
+        CONFIG_PATH='./malwares.yara'
+fi
+
+if [ -f "${IONICE_BIN}" ]
+then
+        NICE=${IONICE_BIN}
+        NICE_OPTS="-c 3"
+else
+        if [ -f "${NICE_BIN}" ]
+        then
+                NICE=${NICE_BIN}
+                NICE_OPTS="-n 20"
+        fi
 fi
 
 show_help() {
@@ -59,12 +73,19 @@ then
     exit 1
 fi
 
+if [ ! -e ${NICE} ]
+then
+        echo "no nice programe available. PLease install ionice or nice."
+        exit 1
+fi
+
 if [ -z $@ ]
 then
-        show_help
-        exit 1
+        show_help
+        exit 1
 fi
 
 OPTS="${OPTS} -r ${CONFIG_PATH}"
 
-ionice -c3 $YARA $OPTS $@
+${NICE} ${NICE_OPTS} $YARA $OPTS $@
+