avoid string overflows

[blktrace.git] / btrace

diff --git a/btrace b/btrace
index f698f9c78a341bec5bf1f5c33f2d172353f4883c..45c10cffdd4d417828cb8e55d7fcfe958ff2993b 100644 (file)
--- a/btrace
+++ b/btrace
@@ -7,24 +7,27 @@
 # 
 
 TRACEOPTS=""
-PARSEOPTS=""
-SUMMARIZE="-q" # quiet (no dev/cpu summary by default)
-USAGE="Usage: btrace [-s] [-t] [-S] [-a <trace>...] <dev>..."
+PARSEOPTS="-b100000"
+USAGE="Usage: btrace [-s] [-t] [-w N] [-n N] [-b N] [-a <trace>...] [-r <dbg mnt>] <dev>..."
 DIRNAME=`dirname $0`
 
-while getopts "a:stS" c
+while getopts "a:w:n:b:r:sthv" c
 do
        case $c in
        a)      TRACEOPTS=$TRACEOPTS" -a "$OPTARG" ";;
+       w)      TRACEOPTS=$TRACEOPTS" -w "$OPTARG" ";;
+       n)      TRACEOPTS=$TRACEOPTS" -n "$OPTARG" ";;
+       b)      TRACEOPTS=$TRACEOPTS" -b "$OPTARG" ";;
+       r)      TRACEOPTS=$TRACEOPTS" -r "$OPTARG" ";;
        s)      PARSEOPTS=$PARSEOPTS" -s";;
        t)      PARSEOPTS=$PARSEOPTS" -t";;
-       S)      SUMMARIZE="";;
+       h)      PARSEOPTS=$PARSEOPTS" -h";;
+       v)      PARSEOPTS=$PARSEOPTS" -v";;
        \?)     echo $USAGE 1>&2
                exit 2
                ;;
        esac
 done
-PARSEOPTS=${PARSEOPTS}${SUMMARIZE}
 
 shift `expr $OPTIND - 1`
 if [ $# -eq 0 ]; then