From 1132f43012e44cb779fd916036da9599f31983d6 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 2 Aug 2019 13:46:49 +0200
Subject: alt-svc: more liberal ALPN name parsing

Allow pretty much anything to be part of the ALPN identifier. In
particular minus, which is used for "h3-20" (in-progress HTTP/3
versions) etc.

Updated test 356.
Closes #4182
---
 lib/altsvc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/altsvc.c')

diff --git a/lib/altsvc.c b/lib/altsvc.c
index 85a4e01b5..e4d3ea605 100644
--- a/lib/altsvc.c
+++ b/lib/altsvc.c
@@ -343,7 +343,7 @@ static CURLcode getalnum(const char **ptr, char *alpnbuf, size_t buflen)
   while(*p && ISBLANK(*p))
     p++;
   protop = p;
-  while(*p && ISALNUM(*p))
+  while(*p && !ISBLANK(*p) && (*p != ';') && (*p != '='))
     p++;
   len = p - protop;
 
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