fix: freebsd: add md5sum_compat()

to account for systems where md5sum's binary name is gmd5sum

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"

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")

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=""