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-rw-r--r--src/stls/stls_send_environment.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/stls/stls_send_environment.c b/src/stls/stls_send_environment.c
index 1c13602..af0eeb6 100644
--- a/src/stls/stls_send_environment.c
+++ b/src/stls/stls_send_environment.c
@@ -11,14 +11,18 @@
int stls_send_environment (struct tls *ctx, int fd)
{
+ char const *servername = tls_conn_servername(ctx) ;
char buf[4096] ;
buffer b = BUFFER_INIT(&buffer_write, fd, buf, 4096) ;
+ if (!servername) servername = "" ;
if (buffer_puts(&b, "SSL_PROTOCOL=") < 0
|| buffer_puts(&b, tls_conn_version(ctx)) < 0
|| buffer_put(&b, "", 1) < 0
|| buffer_puts(&b, "SSL_CIPHER=") < 0
|| buffer_puts(&b, tls_conn_cipher(ctx)) < 0
- || buffer_putflush(&b, "\0", 2) < 0)
- return 0 ;
+ || buffer_put(&b, "", 1) < 0
+ || buffer_puts(&b, "SSL_TLS_SNI_SERVERNAME=") < 0
+ || buffer_puts(&b, servername) < 0
+ || buffer_putflush(&b, "\0", 2) < 0) return 0 ;
return 1 ;
}