allow env clauses also for 'echo' and 'unset'

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103445 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 15 insertions, 5 deletions

diff --git a/modules/metadata/mod_headers.c b/modules/metadata/mod_headers.c
index bcdb436ead..779c4e9a69 100644
--- a/modules/metadata/mod_headers.c
+++ b/modules/metadata/mod_headers.c
@@ -386,15 +386,25 @@ static APR_INLINE const char *header_inout_cmd(cmd_parms *cmd,
                "'echo'.";
 
     if (new->action == hdr_unset) {
-        if (value)
-            return "header unset takes two arguments";
+        if (value) {
+            if (envclause) {
+                return "header unset takes two arguments";
+            }
+            envclause = value;
+            value = NULL;
+        }
     }
     else if (new->action == hdr_echo) {
         regex_t *regex;
 
-        if (value)
-            return "Header echo takes two arguments";
-        else if (cmd->info != &hdr_out && cmd->info != &hdr_err)
+        if (value) {
+            if (envclause) {
+                return "Header echo takes two arguments";
+            }
+            envclause = value;
+            value = NULL;
+        }
+        if (cmd->info != &hdr_out && cmd->info != &hdr_err)
             return "Header echo only valid on Header and ErrorHeader "
                    "directives";
         else {