[network-manager-openconnect/NM_0_8] Revert "Use GChecksum for sha1, not OpenSSL"

[David Woodhouse <dwmw2 src gnome org>]

commit 98afce3e473811f2d0f78f8be469b4ecca336c20
Author: David Woodhouse <David Woodhouse intel com>
Date:   Thu Jun 21 15:46:58 2012 +0100

    Revert "Use GChecksum for sha1, not OpenSSL"
    
    This reverts commit 70690fdc95c5f95e17e82727bf208d97e0caa383.
    
    ... and adds #include <openssl/ssl.h> too. We don't explicitly link against
    libcrypto; we rely on the fact that ancient systems like RHEL5 will let it
    transitively link via libopenconnect.

 auth-dialog/main.c |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/auth-dialog/main.c b/auth-dialog/main.c
index 1c244e5..cc67527 100644
--- a/auth-dialog/main.c
+++ b/auth-dialog/main.c
@@ -39,6 +39,8 @@
 
 #include <gconf/gconf-client.h>
 
+#include <openssl/ssl.h>
+
 #include <gtk/gtk.h>
 #include <glib/gi18n.h>
 
@@ -1014,16 +1016,19 @@ if (0) {
 
 	xmlconfig = get_gconf_setting(gcl, config_path, NM_OPENCONNECT_KEY_XMLCONFIG);
 	if (xmlconfig) {
-		GChecksum *sha1;
-		const char *sha1_text;
+		unsigned char sha1[SHA_DIGEST_LENGTH];
+		char sha1_text[SHA_DIGEST_LENGTH * 2];
+		EVP_MD_CTX c;
+		int i;
 
-		sha1 = g_checksum_new (G_CHECKSUM_SHA1);
-		g_checksum_update (sha1, (gpointer) xmlconfig, strlen(xmlconfig));
-		sha1_text = g_checksum_get_string(sha1);
+		EVP_MD_CTX_init(&c);
+		EVP_Digest(xmlconfig, strlen(xmlconfig), sha1, NULL, EVP_sha1(), NULL);
+		EVP_MD_CTX_cleanup(&c);
 
-		openconnect_set_xmlsha1 (vpninfo, (char *)sha1_text, strlen(sha1_text) + 1);
-		g_checksum_free(sha1);
+		for (i = 0; i < SHA_DIGEST_LENGTH; i++)
+			sprintf(&sha1_text[i*2], "%02x", sha1[i]);
 
+		openconnect_set_xmlsha1(vpninfo, sha1_text, sizeof(sha1_text));
 		parse_xmlconfig(xmlconfig);
 		g_free(xmlconfig);
 	}