From 197d67959bf459fc0f1f63a202d162a569535bf3 Mon Sep 17 00:00:00 2001
From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Date: Tue, 17 Oct 2017 15:09:55 -0400
Subject: [PATCH] crypto: move into libnotmuch_util

This prepares us for using the crypto object in both libnotmuch and
the client.
---
 Makefile.local            |  1 -
 notmuch-client.h          | 22 +---------------------
 util/Makefile.local       |  2 +-
 crypto.c => util/crypto.c |  7 ++++++-
 util/crypto.h             | 28 ++++++++++++++++++++++++++++
 5 files changed, 36 insertions(+), 24 deletions(-)
 rename crypto.c => util/crypto.c (96%)
 create mode 100644 util/crypto.h

diff --git a/Makefile.local b/Makefile.local
index 9d9c52c2..9505b7fe 100644
--- a/Makefile.local
+++ b/Makefile.local
@@ -246,7 +246,6 @@ notmuch_client_srcs =		\
 	sprinter-text.c		\
 	query-string.c		\
 	mime-node.c		\
-	crypto.c		\
 	tag-util.c
 
 notmuch_client_modules = $(notmuch_client_srcs:.c=.o)
diff --git a/notmuch-client.h b/notmuch-client.h
index bdcfd893..d17cdf01 100644
--- a/notmuch-client.h
+++ b/notmuch-client.h
@@ -32,9 +32,6 @@
 
 #include "gmime-extra.h"
 
-/* This is automatically included only since gmime 2.6.10 */
-#include <gmime/gmime-pkcs7-context.h>
-
 #include "notmuch.h"
 
 /* This is separate from notmuch-private.h because we're trying to
@@ -54,6 +51,7 @@
 #include <ctype.h>
 
 #include "talloc-extra.h"
+#include "crypto.h"
 
 #define unused(x) x __attribute__ ((unused))
 
@@ -71,16 +69,6 @@ typedef struct notmuch_show_format {
 			      const struct notmuch_show_params *params);
 } notmuch_show_format_t;
 
-typedef struct _notmuch_crypto {
-    bool verify;
-    bool decrypt;
-#if (GMIME_MAJOR_VERSION < 3)
-    GMimeCryptoContext* gpgctx;
-    GMimeCryptoContext* pkcs7ctx;
-    const char *gpgpath;
-#endif
-} _notmuch_crypto_t;
-
 typedef struct notmuch_show_params {
     bool entire_thread;
     bool omit_excluded;
@@ -180,14 +168,6 @@ typedef struct _notmuch_config notmuch_config_t;
 void
 notmuch_exit_if_unsupported_format (void);
 
-#if (GMIME_MAJOR_VERSION <3)
-GMimeCryptoContext *
-_notmuch_crypto_get_gmime_context (_notmuch_crypto_t *crypto, const char *protocol);
-#endif
-
-void
-_notmuch_crypto_cleanup (_notmuch_crypto_t *crypto);
-
 int
 notmuch_count_command (notmuch_config_t *config, int argc, char *argv[]);
 
diff --git a/util/Makefile.local b/util/Makefile.local
index 3027880b..ba03230e 100644
--- a/util/Makefile.local
+++ b/util/Makefile.local
@@ -5,7 +5,7 @@ extra_cflags += -I$(srcdir)/$(dir)
 
 libnotmuch_util_c_srcs := $(dir)/xutil.c $(dir)/error_util.c $(dir)/hex-escape.c \
 		  $(dir)/string-util.c $(dir)/talloc-extra.c $(dir)/zlib-extra.c \
-		$(dir)/util.c $(dir)/gmime-extra.c
+		$(dir)/util.c $(dir)/gmime-extra.c $(dir)/crypto.c
 
 libnotmuch_util_modules := $(libnotmuch_util_c_srcs:.c=.o)
 
diff --git a/crypto.c b/util/crypto.c
similarity index 96%
rename from crypto.c
rename to util/crypto.c
index 4c1b7eec..c51d67ed 100644
--- a/crypto.c
+++ b/util/crypto.c
@@ -18,7 +18,12 @@
  * Authors: Jameson Rollins <jrollins@finestructure.net>
  */
 
-#include "notmuch-client.h"
+#include "crypto.h"
+#include <strings.h>
+#define unused(x) x __attribute__ ((unused))
+
+#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
+
 #if (GMIME_MAJOR_VERSION < 3)
 /* Create a GPG context (GMime 2.6) */
 static GMimeCryptoContext *
diff --git a/util/crypto.h b/util/crypto.h
new file mode 100644
index 00000000..80628dc5
--- /dev/null
+++ b/util/crypto.h
@@ -0,0 +1,28 @@
+#ifndef _CRYPTO_H
+#define _CRYPTO_H
+
+#include <stdbool.h>
+#if (GMIME_MAJOR_VERSION < 3)
+#include "gmime-extra.h"
+#endif
+
+typedef struct _notmuch_crypto {
+    bool verify;
+    bool decrypt;
+#if (GMIME_MAJOR_VERSION < 3)
+    GMimeCryptoContext* gpgctx;
+    GMimeCryptoContext* pkcs7ctx;
+    const char *gpgpath;
+#endif
+} _notmuch_crypto_t;
+
+
+#if (GMIME_MAJOR_VERSION < 3)
+GMimeCryptoContext *
+_notmuch_crypto_get_gmime_context (_notmuch_crypto_t *crypto, const char *protocol);
+#endif
+
+void
+_notmuch_crypto_cleanup (_notmuch_crypto_t *crypto);
+
+#endif