X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/34dbf787c3fa13541abc9aadcf53c23016895382..51b889b9fbcfec43b87658bf4e8542a1033d7c25:/include/shell.sh

diff --git a/include/shell.sh b/include/shell.sh
index 6ee0cf603..db4100326 100644
--- a/include/shell.sh
+++ b/include/shell.sh
@@ -13,3 +13,22 @@ isset() {
 	eval "var=\"\${$1}\""
 	[ -n "$var" ]
 }
+
+trapret() {(
+	local retvals="$1"; shift
+	local cmd="$1"; shift
+	for retval in $(echo $retvals); do
+		local trap_$retval=1
+	done
+	"$cmd" "$@" || {
+		local retval="$?"
+		eval "trapped=\${trap_$retval}"
+		[ -n "$trapped" ] || {
+			return $retval
+		}
+	}
+)}
+
+md5s() {
+	which md5sum 2>&- >&- && md5sum "$@" | awk '{print $1}' || md5 "$@"
+}