[core] fix setting of headers previously reset (fixes #2919)

bug may result in long delays when using mod_deflate on connections
with keep-alive, as the result is sent without Content-Length or
Transfer-Encoding

(regression in lighttpd 1.4.51)

(thx GilGalaad)

x-ref:
  "high latency on 1.4.51 + proxy + deflate"
  https://redmine.lighttpd.net/boards/2/topics/8365
  https://redmine.lighttpd.net/issues/2919

1 files changed, 2 insertions, 0 deletions

diff --git a/src/http_header.h b/src/http_header.h
index 34183337..f19d1d96 100644
--- a/src/http_header.h
+++ b/src/http_header.h
@@ -42,11 +42,13 @@ enum http_header_e {
 enum http_header_e http_header_hkey_get(const char *s, size_t slen);
 
 buffer * http_header_response_get(connection *con, enum http_header_e id, const char *k, size_t klen);
+void http_header_response_unset(connection *con, enum http_header_e id, const char *k, size_t klen);
 void http_header_response_set(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen);
 void http_header_response_append(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen);
 void http_header_response_insert(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen);
 
 buffer * http_header_request_get(connection *con, enum http_header_e id, const char *k, size_t klen);
+void http_header_request_unset(connection *con, enum http_header_e id, const char *k, size_t klen);
 void http_header_request_set(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen);
 void http_header_request_append(connection *con, enum http_header_e id, const char *k, size_t klen, const char *v, size_t vlen);