3 files changed, 16 insertions, 12 deletions

diff --git a/vendor/README.md b/vendor/README.md
index ec476ff83..c769285ac 100644
--- a/vendor/README.md
+++ b/vendor/README.md
@@ -18,7 +18,7 @@ This directory contains vendored dependencies that are shipped with InspIRCd to
 
 **License** — MIT License
 
-**Version** — v2.9.3
+**Version** — v2.9.4
 
 **Website** — [https://github.com/nodejs/http-parser](https://github.com/nodejs/http-parser)
 
diff --git a/vendor/http_parser/http_parser.c b/vendor/http_parser/http_parser.c
index 0f76b6aca..95ff42f78 100644
--- a/vendor/http_parser/http_parser.c
+++ b/vendor/http_parser/http_parser.c
@@ -731,6 +731,7 @@ reexecute:
         if (ch == CR || ch == LF)
           break;
         parser->flags = 0;
+        parser->extra_flags = 0;
         parser->content_length = ULLONG_MAX;
 
         if (ch == 'H') {
@@ -768,6 +769,7 @@ reexecute:
         if (ch == CR || ch == LF)
           break;
         parser->flags = 0;
+        parser->extra_flags = 0;
         parser->content_length = ULLONG_MAX;
 
         if (ch == 'H') {
@@ -925,6 +927,7 @@ reexecute:
         if (ch == CR || ch == LF)
           break;
         parser->flags = 0;
+        parser->extra_flags = 0;
         parser->content_length = ULLONG_MAX;
 
         if (UNLIKELY(!IS_ALPHA(ch))) {
@@ -1338,7 +1341,7 @@ reexecute:
                 parser->header_state = h_general;
               } else if (parser->index == sizeof(TRANSFER_ENCODING)-2) {
                 parser->header_state = h_transfer_encoding;
-                parser->flags |= F_TRANSFER_ENCODING;
+                parser->extra_flags |= F_TRANSFER_ENCODING >> 8;
               }
               break;
 
@@ -1800,7 +1803,7 @@ reexecute:
 
         /* Cannot us transfer-encoding and a content-length header together
            per the HTTP specification. (RFC 7230 Section 3.3.3) */
-        if ((parser->flags & F_TRANSFER_ENCODING) &&
+        if ((parser->extra_flags & (F_TRANSFER_ENCODING >> 8)) &&
             (parser->flags & F_CONTENTLENGTH)) {
           /* Allow it for lenient parsing as long as `Transfer-Encoding` is
            * not `chunked`
@@ -1886,7 +1889,7 @@ reexecute:
           /* chunked encoding - ignore Content-Length header,
            * prepare for a chunk */
           UPDATE_STATE(s_chunk_size_start);
-        } else if (parser->flags & F_TRANSFER_ENCODING) {
+        } else if (parser->extra_flags & (F_TRANSFER_ENCODING >> 8)) {
           if (parser->type == HTTP_REQUEST && !lenient) {
             /* RFC 7230 3.3.3 */
 
@@ -2162,7 +2165,7 @@ http_message_needs_eof (const http_parser *parser)
   }
 
   /* RFC 7230 3.3.3, see `s_headers_almost_done` */
-  if ((parser->flags & F_TRANSFER_ENCODING) &&
+  if ((parser->extra_flags & (F_TRANSFER_ENCODING >> 8)) &&
       (parser->flags & F_CHUNKED) == 0) {
     return 1;
   }
diff --git a/vendor/http_parser/http_parser.h b/vendor/http_parser/http_parser.h
index 983d88a91..df8825260 100644
--- a/vendor/http_parser/http_parser.h
+++ b/vendor/http_parser/http_parser.h
@@ -27,7 +27,7 @@ extern "C" {
 /* Also update SONAME in the Makefile whenever you change these. */
 #define HTTP_PARSER_VERSION_MAJOR 2
 #define HTTP_PARSER_VERSION_MINOR 9
-#define HTTP_PARSER_VERSION_PATCH 3
+#define HTTP_PARSER_VERSION_PATCH 4
 
 #include <stddef.h>
 #if defined(_WIN32) && !defined(__MINGW32__) && \
@@ -225,7 +225,7 @@ enum flags
   , F_UPGRADE               = 1 << 5
   , F_SKIPBODY              = 1 << 6
   , F_CONTENTLENGTH         = 1 << 7
-  , F_TRANSFER_ENCODING     = 1 << 8
+  , F_TRANSFER_ENCODING     = 1 << 8  /* Never set in http_parser.flags */
   };
 
 
@@ -272,13 +272,13 @@ enum flags
      "unexpected content-length header")                             \
   XX(INVALID_CHUNK_SIZE,                                             \
      "invalid character in chunk size header")                       \
-  XX(INVALID_TRANSFER_ENCODING,                                      \
-     "request has invalid transfer-encoding")                        \
   XX(INVALID_CONSTANT, "invalid constant string")                    \
   XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
   XX(STRICT, "strict mode assertion failed")                         \
   XX(PAUSED, "parser is paused")                                     \
-  XX(UNKNOWN, "an unknown error occurred")
+  XX(UNKNOWN, "an unknown error occurred")                           \
+  XX(INVALID_TRANSFER_ENCODING,                                      \
+     "request has invalid transfer-encoding")                        \
 
 
 /* Define HPE_* values for each errno value above */
@@ -296,11 +296,12 @@ enum http_errno {
 struct http_parser {
   /** PRIVATE **/
   unsigned int type : 2;         /* enum http_parser_type */
+  unsigned int flags : 8;       /* F_* values from 'flags' enum; semi-public */
   unsigned int state : 7;        /* enum state from http_parser.c */
   unsigned int header_state : 7; /* enum header_state from http_parser.c */
-  unsigned int index : 7;        /* index into current matcher */
+  unsigned int index : 5;        /* index into current matcher */
+  unsigned int extra_flags : 2;
   unsigned int lenient_http_headers : 1;
-  unsigned int flags : 16;       /* F_* values from 'flags' enum; semi-public */
 
   uint32_t nread;          /* # bytes read in various scenarios */
   uint64_t content_length; /* # bytes in body (0 if no Content-Length header) */