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authorJoel Depooter <joel.depooter@safe.com>2021-05-26 18:33:34 -0700
committerDaniel Stenberg <daniel@haxx.se>2021-05-27 08:27:35 +0200
commitee97f176970c9667bfbdaab89bc637e77099d1df (patch)
treeb088aa0206bb2de9a68a22a6b0d5f0ddd424ad6c /lib/vtls/schannel.c
parent5f7fef70a9cc31cf693f61065748b211a225d1d4 (diff)
downloadcurl-ee97f176970c9667bfbdaab89bc637e77099d1df.tar.gz
schannel: set ALPN length correctly for HTTP/2
In a3268eca792f1 this code was changed to use the ALPN_H2 constant instead of the NGHTTP2_PROTO_ALPN constant. However, these constants are not the same. The nghttp2 constant included the length of the string, like this: "\x2h2". The ALPN_H2 constant is just "h2". Therefore we need to re-add the length of the string to the ALPN buffer. Closes #7138
Diffstat (limited to 'lib/vtls/schannel.c')
-rw-r--r--lib/vtls/schannel.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index 2bcf11db2..3286a9e9f 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -874,6 +874,7 @@ schannel_connect_step1(struct Curl_easy *data, struct connectdata *conn,
#ifdef USE_HTTP2
if(data->state.httpwant >= CURL_HTTP_VERSION_2) {
+ alpn_buffer[cur++] = ALPN_H2_LENGTH;
memcpy(&alpn_buffer[cur], ALPN_H2, ALPN_H2_LENGTH);
cur += ALPN_H2_LENGTH;
infof(data, "schannel: ALPN, offering %s\n", ALPN_H2);