From 09bd6dffd92b0e9735e4885882fa411348b4d01d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Lesimple?= <speed47_github@speed47.net>
Date: Tue, 17 Nov 2020 11:14:34 +0100
Subject: [PATCH] fix: freebsd: add md5sum_compat()

to account for systems where md5sum's binary name is gmd5sum
---
 bin/admin/install               | 3 ++-
 bin/sudogen/generate-sudoers.sh | 2 +-
 lib/shell/functions.inc         | 9 +++++++++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/bin/admin/install b/bin/admin/install
index 8e1ce20..7e42b9e 100755
--- a/bin/admin/install
+++ b/bin/admin/install
@@ -436,7 +436,8 @@ if [ "$nothing" = 0 ]; then
                         action_detail "... we would divide by zero! fallback to a non-random random, such as $n"
                         random=$n
                     else
-                        random=$(( ( 0x$(echo "$(hostname -f) $placeholder $file" | md5sum | cut -c1-4) % (m-n) ) + n ))
+                        # shellcheck disable=SC2119
+                        random=$(( ( 0x$(echo "$(hostname -f) $placeholder $file" | md5sum_compat | cut -c1-4) % (m-n) ) + n ))
                     fi
                     action_detail "... in above file, replacing $placeholder by $random"
                     sed_compat "s/$placeholder/$random/g" "$destfile"
diff --git a/bin/sudogen/generate-sudoers.sh b/bin/sudogen/generate-sudoers.sh
index 28cf9a9..c9b2569 100755
--- a/bin/sudogen/generate-sudoers.sh
+++ b/bin/sudogen/generate-sudoers.sh
@@ -32,7 +32,7 @@ generate_account_sudoers()
     normalized_account=$(sed -re 's/[^A-Z0-9_]/_/gi' <<< "$account")
     # as we're reducing the amount of possible chars in normalized_account
     # we could have collisions: use MD5 to generate a uniq suffix
-    account_suffix=$(md5sum - <<< "$account" | cut -c1-6)
+    account_suffix=$(md5sum_compat - <<< "$account" | cut -c1-6)
     normalized_account="${normalized_account}_${account_suffix}"
     # lowercase is prohibited
     normalized_account=$(tr '[:lower:]' '[:upper:]' <<< "$normalized_account")
diff --git a/lib/shell/functions.inc b/lib/shell/functions.inc
index dc392be..c667ae0 100644
--- a/lib/shell/functions.inc
+++ b/lib/shell/functions.inc
@@ -108,6 +108,15 @@ sed_compat()
     fi
 }
 
+md5sum_compat()
+{
+    if command -v gmd5sum >/dev/null; then
+        gmd5sum "$@"; return $?
+    else
+        md5sum "$@"; return $?
+    fi
+}
+
 useradd_compat()
 {
     local _user="$1" _uid="" _home="" _shell="" _gid="" _extra=""