ensure gnutls is initialized before use

Section 7.1.2 of the gnutls info manual states that it must be initialized with a call to gnutls_global_init before use. This fixes the syslog warning I was seeing: lxc-create: Libgcrypt warning: missing initialization - please fix the application Signed-off-by: Dwight Engen <dwight.engen@oracle.com> Acked-by: Stéphane Graber <stgraber@ubuntu.com>

ensure gnutls is initialized before use
41246cee · Dwight Engen · Stéphane Graber · f220889f · 41246cee
Commit 41246cee authored Oct 08, 2013 by Dwight Engen Committed by Stéphane Graber Oct 08, 2013
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utils.c src/lxc/utils.c +7 -0

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--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -426,6 +426,13 @@ static inline int lock_fclose(FILE *f)
 #if HAVE_LIBGNUTLS
 #include <gnutls/gnutls.h>
 #include <gnutls/crypto.h>
+
+__attribute__((constructor))
+static void gnutls_lxc_init(void)
+{
+	gnutls_global_init();
+}
+
 int sha1sum_file(char *fnam, unsigned char *digest)
 {
 	char *buf;