From 8a38afd4795ce976978e3be0fd539cda1a3da243 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kitenet.net>
Date: Mon, 15 Aug 2011 16:29:11 -0400
Subject: Support using md5 and shaN programs, as found on FreeBSD, in addition
 to md5sum and shaNsum.

Based on the patch used for the FreeBSD port of debootstrap:
http://www.freebsd.org/cgi/cvsweb.cgi/ports/sysutils/debootstrap/files/patch-functions?rev=1.3;content-type=text%2Fplain

That entire patch should now be unnecessary.
---
 debian/changelog |  2 ++
 debootstrap      |  2 +-
 functions        | 16 ++++++++++++++--
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 72ca0a8..05bda1a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,8 @@ debootstrap (1.0.36) UNRELEASED; urgency=low
     chroot or jail.
   * Clarify "target" in usage message.
   * Search PATH for programs, rather than checking hardcoded locations.
+  * Support using md5 and shaN programs, as found on FreeBSD, in addition
+    to md5sum and shaNsum.
 
  -- Joey Hess <joeyh@debian.org>  Mon, 15 Aug 2011 14:14:29 -0400
 
diff --git a/debootstrap b/debootstrap
index 278ed64..ca4c026 100755
--- a/debootstrap
+++ b/debootstrap
@@ -447,7 +447,7 @@ fi
 if [ -z "$SHA_SIZE" ]; then
 	SHA_SIZE=256
 fi
-if ! in_path "sha${SHA_SIZE}sum"; then
+if ! in_path "sha${SHA_SIZE}sum" && ! in_path "sha${SHA_SIZE}"; then
 	SHA_SIZE=1
 fi
 DEBOOTSTRAP_CHECKSUM_FIELD="SHA$SHA_SIZE"
diff --git a/functions b/functions
index 80844de..e07ca69 100644
--- a/functions
+++ b/functions
@@ -249,9 +249,21 @@ verify_checksum () {
 	local expchecksum="$2"
 	local expsize="$3"
 	if [ "$DEBOOTSTRAP_CHECKSUM_FIELD" = "MD5SUM" ]; then
-		relchecksum=`md5sum < "$1" | sed 's/ .*$//'`
+		if in_path md5sum; then
+			relchecksum=`md5sum < "$1" | sed 's/ .*$//'`
+		elif in_path md5; then
+			relchecksum=`md5 < "$1"`
+		else
+			error 1 SIGCHECK "Cannot check md5sum"
+		fi
 	else
-		relchecksum=`sha${SHA_SIZE}sum < "$1" | sed 's/ .*$//'`
+		if in_path "sha${SHA_SIZE}sum"; then
+			relchecksum=`sha${SHA_SIZE}sum < "$1" | sed 's/ .*$//'`
+		elif in_path "sha${SHA_SIZE}"; then
+			relchecksum=`sha${SHA_SIZE} < "$1"`
+		else
+			error 1 SIGCHECK "Cannot check sha${SHA_SIZE}sum"
+		fi
 	fi
 	relsize=`wc -c < "$1"`
 	if [ "$expsize" -ne "$relsize" ] || [ "$expchecksum" != "$relchecksum" ]; then
-- 
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