btrfs-progs: move the check_argc_* functions into utils.c

To let the independent tools(e.g. btrfs-image, btrfs-convert, etc.)
share the convenience of check_argc_* functions, just move it into
utils.c.
Also add a new function "set_argv0" to set the correct tool name:
	*btrfs-image*: too few arguments

The original btrfs* tools work as before.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
[moved argv0 and check_argc to utils.*]
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 9 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index 6599ee4d..e29ab936 100644
--- a/utils.h
+++ b/utils.h
@@ -39,6 +39,15 @@
 
 #define BTRFS_UUID_UNPARSED_SIZE	37
 
+#define ARGV0_BUF_SIZE	64
+
+int check_argc_exact(int nargs, int expected);
+int check_argc_min(int nargs, int expected);
+int check_argc_max(int nargs, int expected);
+
+void fixup_argv0(char **argv, const char *token);
+void set_argv0(char **argv);
+
 int make_btrfs(int fd, const char *device, const char *label,
 	       char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize,
 	       u32 leafsize, u32 sectorsize, u32 stripesize, u64 features);