Drop usage of ERR_GET_FUNC()

This macro was dropped in OpenSSL 3.0 and has actually not been
providing a valid return code for some time.

Related: rhbz#1964837

Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>

0001-Drop-usage-of-ERR_GET_FUNC.patch

@@ -0,0 +1,34 @@
+From 60377ad4a6a6ef2012d502f118fedb425f4a11af Mon Sep 17 00:00:00 2001
+From: Stephen Gallagher <sgallagh@redhat.com>
+Date: Sat, 7 Aug 2021 11:48:04 -0400
+Subject: [PATCH] Drop usage of ERR_GET_FUNC()
+
+This macro was dropped in OpenSSL 3.0 and has actually not been
+providing a valid return code for some time.
+
+Related: rhbz#1964837
+
+Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>
+---
+ include/sscg.h | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/include/sscg.h b/include/sscg.h
+index d4499227ea5bd23ac5cae27680438cfe0709fbc4..99788e6001791b658298626d464edcdc7e4ba2cc 100644
+--- a/include/sscg.h
++++ b/include/sscg.h
+@@ -94,11 +94,10 @@
+       if (_sslret != 1)                                                       \
+         {                                                                     \
+           /* Get information about error from OpenSSL */                      \
+           unsigned long _ssl_error = ERR_get_error ();                        \
+           if ((ERR_GET_LIB (_ssl_error) == ERR_LIB_UI) &&                     \
+-              (ERR_GET_FUNC (_ssl_error) == UI_F_UI_SET_RESULT_EX) &&         \
+               ((ERR_GET_REASON (_ssl_error) == UI_R_RESULT_TOO_LARGE) ||      \
+                (ERR_GET_REASON (_ssl_error) == UI_R_RESULT_TOO_SMALL)))       \
+             {                                                                 \
+               fprintf (                                                       \
+                 stderr,                                                       \
+-- 
+2.31.1
+

sscg.spec

@@ -26,6 +26,10 @@ BuildRequires:  ninja-build
 BuildRequires:  help2man
 
 
+# Upstream patch providing more OpenSSL 3.0 compatibility
+Patch0001: 0001-Drop-usage-of-ERR_GET_FUNC.patch
+
+
 %description
 A utility to aid in the creation of more secure "self-signed"
 certificates. The certificates created by this tool are generated in a