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+#!/bin/bash
+
+# sbodl, initial public release.
+
+SELF=$( basename $0 )
+
+usage() {
+	cat <<EOF
+$SELF - download the sources for a slackbuilds.org build.
+version 20140421, public release
+(c) 2014 B. Watson (yalhcru at gmail dawt cawm)
+Licensed under the WTFPL: Do WTF you want with this.
+
+Usage: $SELF <wget-options>
+
+Execute $SELF in the directory that contains the .info and .SlackBuild
+files. It will use wget to download the source file(s), then check their
+md5sums.
+
+$SELF doesn't take any options itself (except --help), but any options
+you pass to it will be passed to wget.
+EOF
+	exit 0
+}
+
+die() {
+	echo "$SELF: $*" 2>&1
+	exit 1
+}
+
+# check for our one argument
+case "$*" in
+	-h|-help|-\?|--help) usage ;;
+esac
+
+source ./$( basename $( pwd ) ).info \
+	|| die "No .info file, are you sure this is a SBo directory? Try '$SELF --help'"
+
+# This stanza copied from the SBo template for 14.1:
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i486 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ "$ARCH" = "x86_64" ]; then
+	DL=${DOWNLOAD_x86_64:-$DOWNLOAD}
+	SUM=${MD5SUM_x86_64:-$MD5SUM}
+else
+	DL=$DOWNLOAD
+	SUM=${MD5SUM}
+fi
+
+if [ -z "$DL" ]; then
+	die "Bad .info file (no DOWNLOAD= or DOWNLOAD_x86_64=)."
+fi
+
+# save passed-in command line args for use with wget
+WGETARGS="$@"
+
+set $SUM
+
+for dl in $DL; do
+	EXTRAWGETARGS="--content-disposition "
+	case "$dl" in
+		*sourceforge.net/*|*.sf.net/*) EXTRAWGETARGS="--user-agent wget" ;;
+		*) ;;
+	esac
+
+	FILE=$( echo "$dl" | sed 's,.*/,,' )
+
+	wget $WGETARGS $EXTRAWGETARGS "$dl" || die "Download failed"
+
+	if [ -e "$FILE" ]; then
+		GOTSUM="$( md5sum "$FILE" | cut -d' ' -f1 )"
+		if [ "$1" != "$GOTSUM" ]; then
+			echo "WARN: md5sum doesn't match, expected $1, got $GOTSUM"
+		else
+			echo "md5sum matches OK: $1"
+		fi
+	else
+		echo "WARN: can't find downloaded file $FILE"
+	fi
+	echo
+	shift
+done