From: Dr. David von Oheimb <David.von.Oheimb@siemens.com>
Date: Thu, 30 Dec 2021 08:30:18 +0000 (+0100)
Subject: ec.h: Explain use of strstr() for EVP_EC_gen() and add #include <string.h>
X-Git-Tag: openssl-3.2.0-alpha1~3151
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d8f18dce1c8ba99693dfaeb1696d625d9f4b7e0;p=thirdparty%2Fopenssl.git

ec.h: Explain use of strstr() for EVP_EC_gen() and add #include <string.h>

Fixes #17362

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17380)
---

diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index f59b4f92885..4e65d84c451 100644
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -20,6 +20,8 @@
 # include <openssl/opensslconf.h>
 # include <openssl/types.h>
 
+# include <string.h>
+
 # ifdef  __cplusplus
 extern "C" {
 # endif
@@ -1548,6 +1550,7 @@ OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify
 
 #  define EVP_EC_gen(curve) \
     EVP_PKEY_Q_keygen(NULL, NULL, "EC", (char *)(strstr(curve, "")))
+    /* strstr is used to enable type checking for the variadic string arg */
 #  define ECParameters_dup(x) ASN1_dup_of(EC_KEY, i2d_ECParameters, \
                                           d2i_ECParameters, x)