From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sat, 25 Nov 2017 14:06:18 +0000 (+0100)
Subject: libpakfire: Initialize libgcrypt when we need it
X-Git-Tag: 0.9.28~1285^2~1281
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=658c740d20e7805f234cedf7a662273c94ab2839;p=pakfire.git

libpakfire: Initialize libgcrypt when we need it

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/include/pakfire/util.h b/src/libpakfire/include/pakfire/util.h
index ba21e11a0..dbe001abc 100644
--- a/src/libpakfire/include/pakfire/util.h
+++ b/src/libpakfire/include/pakfire/util.h
@@ -45,4 +45,6 @@ char* pakfire_dirname(const char* path);
 char* pakfire_sgets(char* str, int num, char** input);
 char* pakfire_remove_trailing_newline(char* str);
 
+void init_libgcrypt();
+
 #endif /* PAKFIRE_UTIL_H */
diff --git a/src/libpakfire/util.c b/src/libpakfire/util.c
index 62411512b..a4bf292cd 100644
--- a/src/libpakfire/util.c
+++ b/src/libpakfire/util.c
@@ -26,6 +26,8 @@
 #include <string.h>
 #include <time.h>
 
+#include <gcrypt.h>
+
 #include <pakfire/constants.h>
 
 void pakfire_oom(size_t num, size_t len) {
@@ -173,3 +175,22 @@ char* pakfire_remove_trailing_newline(char* str) {
 
 	return str;
 }
+
+void init_libgcrypt() {
+	// Only execute this once
+	static int libgcrypt_initialized = 0;
+	if (libgcrypt_initialized++)
+		return;
+
+	const char* version = gcry_check_version(NULL);
+	if (!version) {
+		fprintf(stderr, "Could not initialize libgcrypt\n");
+		exit(1);
+	}
+
+	// Disable secure memory
+	gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
+
+	// Tell libgcrypt that initialization has completed
+	gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
+}