From be3448fb8a408258565de17613b7350205e19064 Mon Sep 17 00:00:00 2001
From: Milan Broz <gmazyland@gmail.com>
Date: Sat, 12 Mar 2011 20:23:16 +0000
Subject: [PATCH] Separate loop handling from internal code.

git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@444 36d66b0a-2a48-0410-832c-cd162a569da5
---
 lib/Makefile.am  |  1 +
 lib/internal.h   |  6 ------
 lib/setup.c      |  4 ++--
 lib/utils_loop.c |  5 ++---
 lib/utils_loop.h | 13 +++++++++++++
 5 files changed, 18 insertions(+), 11 deletions(-)
 create mode 100644 lib/utils_loop.h

diff --git a/lib/Makefile.am b/lib/Makefile.am
index d136642f..2eb01a80 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -52,6 +52,7 @@ libcryptsetup_la_SOURCES = \
 	utils_crypt.h				\
 	utils_debug.c				\
 	utils_loop.c				\
+	utils_loop.h				\
 	libdevmapper.c				\
 	volumekey.c				\
 	random.c				\
diff --git a/lib/internal.h b/lib/internal.h
index 9484ad32..7b42082d 100644
--- a/lib/internal.h
+++ b/lib/internal.h
@@ -106,12 +106,6 @@ int device_check_and_adjust(struct crypt_device *cd,
 			    int *read_only);
 int wipe_device_header(const char *device, int sectors);
 
-/* loopback device helpers */
-char *crypt_loop_get_device(void);
-char *crypt_loop_backing_file(const char *loop);
-int crypt_loop_device(const char *loop);
-int crypt_loop_attach(const char *loop, const char *file, int offset, int *readonly);
-
 void logger(struct crypt_device *cd, int class, const char *file, int line, const char *format, ...);
 #define log_dbg(x...) logger(NULL, CRYPT_LOG_DEBUG, __FILE__, __LINE__, x)
 #define log_std(c, x...) logger(c, CRYPT_LOG_NORMAL, __FILE__, __LINE__, x)
diff --git a/lib/setup.c b/lib/setup.c
index cc7423b5..909d5e3a 100644
--- a/lib/setup.c
+++ b/lib/setup.c
@@ -434,7 +434,7 @@ static int key_from_terminal(struct crypt_device *cd, char *msg, char **key,
 
 	*key = NULL;
 	if(!msg && asprintf(&prompt, _("Enter passphrase for %s: "),
-			    crypt_get_device_name(cd)) < 0)
+			    cd->backing_file ?: cd->device) < 0)
 		return -ENOMEM;
 
 	if (!msg)
@@ -2350,7 +2350,7 @@ const char *crypt_get_uuid(struct crypt_device *cd)
 
 const char *crypt_get_device_name(struct crypt_device *cd)
 {
-	return cd->backing_file ?: cd->device;
+	return cd->device;
 }
 
 int crypt_get_volume_key_size(struct crypt_device *cd)
diff --git a/lib/utils_loop.c b/lib/utils_loop.c
index d59ca075..3a8df472 100644
--- a/lib/utils_loop.c
+++ b/lib/utils_loop.c
@@ -19,15 +19,14 @@
 
 #include <string.h>
 #include <stdio.h>
+#include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <linux/loop.h>
 
-#include "internal.h"
-
-#define LOOP_DEV_MAJOR 7
+#include "utils_loop.h"
 
 char *crypt_loop_get_device(void)
 {
diff --git a/lib/utils_loop.h b/lib/utils_loop.h
new file mode 100644
index 00000000..54b533e6
--- /dev/null
+++ b/lib/utils_loop.h
@@ -0,0 +1,13 @@
+#ifndef _UTILS_LOOP_H
+#define _UTILS_LOOP_H
+
+/* loopback device helpers */
+
+#define LOOP_DEV_MAJOR 7
+
+char *crypt_loop_get_device(void);
+char *crypt_loop_backing_file(const char *loop);
+int crypt_loop_device(const char *loop);
+int crypt_loop_attach(const char *loop, const char *file, int offset, int *readonly);
+
+#endif /* _UTILS_CRYPT_H */