Fix style (kernel checkstyle)

63 files changed, 328 insertions, 224 deletions

diff --git a/libalx b/libalx
-Subproject 0e3f07b6d3894c494f39d63c1c617b6600d6521
+Subproject e67da562ef5e2dda524c86da3367d537caee4d4
diff --git a/modules/about/inc/about.h b/modules/about/inc/about.h
index 62a0963..381f13d 100644
--- a/modules/about/inc/about.h
+++ b/modules/about/inc/about.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -40,16 +41,16 @@
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	char	share_path [FILENAME_MAX];
+extern	char	share_path [FILENAME_MAX];
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	about_init		(void);
-	void	snprint_share_file	(char *dest, int destsize, int share_file);
-	void	print_share_file	(int share_file);
-	void	print_version		(void);
+void	about_init		(void);
+void	snprint_share_file	(char *dest, int destsize, int share_file);
+void	print_share_file	(int share_file);
+void	print_version		(void);
 
 
 /******************************************************************************
diff --git a/modules/about/inc/about.hpp b/modules/about/inc/about.hpp
index a1a9f2e..31d5977 100644
--- a/modules/about/inc/about.hpp
+++ b/modules/about/inc/about.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -46,16 +47,16 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	char	share_path [FILENAME_MAX];
+extern	char	share_path [FILENAME_MAX];
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	about_init		(void);
-	void	snprint_share_file	(char *dest, int destsize, int share_file);
-	void	print_share_file	(int share_file);
-	void	print_version		(void);
+void	about_init		(void);
+void	snprint_share_file	(char *dest, int destsize, int share_file);
+void	print_share_file	(int share_file);
+void	print_version		(void);
 
 
 /******************************************************************************
diff --git a/modules/about/src/about.c b/modules/about/src/about.c
index a9561e0..daae65a 100644
--- a/modules/about/src/about.c
+++ b/modules/about/src/about.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -38,7 +39,8 @@ char	share_path [FILENAME_MAX];
  ******************************************************************************/
 void	about_init		(void)
 {
-	snprintf(share_path, FILENAME_MAX, "%s/%s/", INSTALL_SHARE_DIR, SHARE_DIR);
+	snprintf(share_path, FILENAME_MAX, "%s/%s/",
+						INSTALL_SHARE_DIR, SHARE_DIR);
 }
 
 void	snprint_share_file	(char *dest, int destsize, int share_file)
@@ -47,19 +49,24 @@ void	snprint_share_file	(char *dest, int destsize, int share_file)
 
 	switch (share_file) {
 	case SHARE_COPYRIGHT:
-		snprintf(file_name, FILENAME_MAX, "%s/%s", share_path, "COPYRIGHT.txt");
+		snprintf(file_name, FILENAME_MAX, "%s/%s",
+						share_path, "COPYRIGHT.txt");
 		break;
 	case SHARE_DISCLAIMER:
-		snprintf(file_name, FILENAME_MAX, "%s/%s", share_path, "DISCLAIMER.txt");
+		snprintf(file_name, FILENAME_MAX, "%s/%s",
+						share_path, "DISCLAIMER.txt");
 		break;
 	case SHARE_HELP:
-		snprintf(file_name, FILENAME_MAX, "%s/%s", share_path, "HELP.txt");
+		snprintf(file_name, FILENAME_MAX, "%s/%s",
+						share_path, "HELP.txt");
 		break;
 	case SHARE_LICENSE:
-		snprintf(file_name, FILENAME_MAX, "%s/%s", share_path, "LICENSE.txt");
+		snprintf(file_name, FILENAME_MAX, "%s/%s",
+						share_path, "LICENSE.txt");
 		break;
 	case SHARE_USAGE:
-		snprintf(file_name, FILENAME_MAX, "%s/%s", share_path, "USAGE.txt");
+		snprintf(file_name, FILENAME_MAX, "%s/%s",
+						share_path, "USAGE.txt");
 		break;
 	}
 
diff --git a/modules/ctrl/inc/start.h b/modules/ctrl/inc/start.h
index 1ef2af6..e8273f1 100644
--- a/modules/ctrl/inc/start.h
+++ b/modules/ctrl/inc/start.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/ctrl/src/start.c b/modules/ctrl/src/start.c
index 37ea1b4..2022b32 100644
--- a/modules/ctrl/src/start.c
+++ b/modules/ctrl/src/start.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -46,6 +47,7 @@ static	void	start_series	(void);
  ******************************************************************************/
 void	start_switch	(void)
 {
+
 	switch (start_mode) {
 	case START_FOO:
 		start_foo();
@@ -67,11 +69,13 @@ void	start_switch	(void)
  ******************************************************************************/
 static	void	start_foo	(void)
 {
+
 	/* empty */
 }
 
 static	void	start_single	(void)
 {
+
 	errno	= 0;
 	img_iface_load(NULL, saved_name);
 
@@ -89,6 +93,7 @@ static	void	start_single	(void)
 static	void	start_series	(void)
 {
 	int	tmp;
+
 	tmp		= user_iface_mode;
 	user_iface_mode	= USER_IFACE_CLUI;
 
diff --git a/modules/image/inc/img_alx.hpp b/modules/image/inc/img_alx.hpp
index d3867d6..6eb76ce 100644
--- a/modules/image/inc/img_alx.hpp
+++ b/modules/image/inc/img_alx.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/inc/img_calib3d.hpp b/modules/image/inc/img_calib3d.hpp
index 7079d68..87ff946 100644
--- a/modules/image/inc/img_calib3d.hpp
+++ b/modules/image/inc/img_calib3d.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -32,7 +33,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	img_calib3d_act	(class cv::Mat *imgptr, int action, void *data);
+void	img_calib3d_act	(class cv::Mat *imgptr, int action, void *data);
 
 
 /******************************************************************************
diff --git a/modules/image/inc/img_cv.hpp b/modules/image/inc/img_cv.hpp
index 61cb78a..f1aa538 100644
--- a/modules/image/inc/img_cv.hpp
+++ b/modules/image/inc/img_cv.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/inc/img_iface.h b/modules/image/inc/img_iface.h
index 460db47..c071971 100644
--- a/modules/image/inc/img_iface.h
+++ b/modules/image/inc/img_iface.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -29,10 +30,7 @@
 	# define	IMG_IFACE_THR_OTSU	(-1)
 
 /* Functions -----------------------------------------------------------------*/
-	# define	img_iface_act_nodata(x) \
-				do {					\
-					img_iface_act(x, NULL);		\
-				} while (0)
+	# define	img_iface_act_nodata(x)		img_iface_act(x, NULL)
 
 
 /******************************************************************************
@@ -160,20 +158,20 @@
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	char				img_ocr_text [OCR_TEXT_MAX];
-	extern	struct Img_Iface_ZB_Codes	zb_codes;
+extern	char				img_ocr_text [OCR_TEXT_MAX];
+extern	struct Img_Iface_ZB_Codes	zb_codes;
 
 
 /******************************************************************************
- ******* functions ************************************************************
- ******************************************************************************/
-	void	img_iface_cleanup_main	(void);
-	void	img_iface_load		(const char *fpath, const char *fname);
-	void	img_iface_cleanup	(void);
-	void	img_iface_act		(int action, void *data);
-	void	img_iface_show_img	(void);
-	void	img_iface_show_hist_c1	(void);
-	void	img_iface_show_hist_c3	(void);
+******* functions ************************************************************
+******************************************************************************/
+void	img_iface_cleanup_main	(void);
+void	img_iface_load		(const char *fpath, const char *fname);
+void	img_iface_cleanup	(void);
+void	img_iface_act		(int action, void *data);
+void	img_iface_show_img	(void);
+void	img_iface_show_hist_c1	(void);
+void	img_iface_show_hist_c3	(void);
 
 
 /******************************************************************************
diff --git a/modules/image/inc/img_iface.hpp b/modules/image/inc/img_iface.hpp
index 6448578..b1904df 100644
--- a/modules/image/inc/img_iface.hpp
+++ b/modules/image/inc/img_iface.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -310,20 +311,20 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	char				img_ocr_text [OCR_TEXT_MAX];
-	extern	struct Img_Iface_ZB_Codes	zb_codes;
+extern	char				img_ocr_text [OCR_TEXT_MAX];
+extern	struct Img_Iface_ZB_Codes	zb_codes;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	img_iface_cleanup_main	(void);
-	void	img_iface_load		(const char *fpath, const char *fname);
-	void	img_iface_cleanup	(void);
-	void	img_iface_act		(int action, void *data);
-	void	img_iface_show_img	(void);
-	void	img_iface_show_hist_c1	(void);
-	void	img_iface_show_hist_c3	(void);
+void	img_iface_cleanup_main	(void);
+void	img_iface_load		(const char *fpath, const char *fname);
+void	img_iface_cleanup	(void);
+void	img_iface_act		(int action, void *data);
+void	img_iface_show_img	(void);
+void	img_iface_show_hist_c1	(void);
+void	img_iface_show_hist_c3	(void);
 
 
 /******************************************************************************
diff --git a/modules/image/inc/img_ocr.h b/modules/image/inc/img_ocr.h
index 62d248a..e6c1bca 100644
--- a/modules/image/inc/img_ocr.h
+++ b/modules/image/inc/img_ocr.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/inc/img_ocr.hpp b/modules/image/inc/img_ocr.hpp
index 355a124..dfd759a 100644
--- a/modules/image/inc/img_ocr.hpp
+++ b/modules/image/inc/img_ocr.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -30,7 +31,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	img_ocr_act	(int action, void *data);
+void	img_ocr_act	(int action, void *data);
 
 
 /******************************************************************************
diff --git a/modules/image/inc/img_orb.hpp b/modules/image/inc/img_orb.hpp
index ce5a914..18db3a7 100644
--- a/modules/image/inc/img_orb.hpp
+++ b/modules/image/inc/img_orb.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -31,8 +32,8 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	img_orb_act	(class cv::Mat  *pattern,
-				class cv::Mat  *imgptr,  int  action);
+void	img_orb_act	(class cv::Mat  *pattern,
+			class cv::Mat  *imgptr,  int  action);
 
 
 /******************************************************************************
diff --git a/modules/image/inc/img_zbar.hpp b/modules/image/inc/img_zbar.hpp
index 72f1020..d638ed5 100644
--- a/modules/image/inc/img_zbar.hpp
+++ b/modules/image/inc/img_zbar.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/src/img_calib3d.cpp b/modules/image/src/img_calib3d.cpp
index 63a64f4..8aaa408 100644
--- a/modules/image/src/img_calib3d.cpp
+++ b/modules/image/src/img_calib3d.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/src/img_cv.cpp b/modules/image/src/img_cv.cpp
index 0d76bb8..d9c2343 100644
--- a/modules/image/src/img_cv.cpp
+++ b/modules/image/src/img_cv.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/src/img_iface.cpp b/modules/image/src/img_iface.cpp
index 0c896f6..6c5d64e 100644
--- a/modules/image/src/img_iface.cpp
+++ b/modules/image/src/img_iface.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -757,7 +758,7 @@ static	void	img_iface_set_ROI		(void *data)
 					title, NULL);
 
 		snprintf(title, 80, "Width:");
-		data_tmp.rect.width	= user_iface_getint(1, 
+		data_tmp.rect.width	= user_iface_getint(1,
 					image_copy_tmp.cols - data_tmp.rect.x,
 					image_copy_tmp.cols - data_tmp.rect.x,
 					title, NULL);
diff --git a/modules/image/src/img_ocr.c b/modules/image/src/img_ocr.c
index c406abf..35e0db3 100644
--- a/modules/image/src/img_ocr.c
+++ b/modules/image/src/img_ocr.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -52,15 +53,18 @@ void	img_ocr_act	(int action, void *data)
  ******************************************************************************/
 static	void	img_ocr_read	(void *data)
 {
-	struct TessBaseAPI	*handle_ocr;
+	struct Img_Iface_Data_Read	*data_cast;
+	struct TessBaseAPI		*handle_ocr;
+	int	lang;
+	char	lang_str [20 + 1];
+	int	conf;
+	char	conf_str [FILENAME_MAX];
+	char	*txt;
 
 	/* Data */
-	struct Img_Iface_Data_Read	*data_cast;
 	data_cast	= (struct Img_Iface_Data_Read *)data;
 
 	/* Language */
-	int	lang;
-	char	lang_str [20 + 1];
 	lang	= data_cast->lang;
 	switch (lang) {
 	case IMG_IFACE_OCR_LANG_ENG:
@@ -81,8 +85,6 @@ static	void	img_ocr_read	(void *data)
 	}
 
 	/* Config file */
-	int	conf;
-	char	conf_str [FILENAME_MAX];
 	conf	= data_cast->conf;
 	switch (conf) {
 	case IMG_IFACE_OCR_CONF_PRICE:
@@ -92,13 +94,12 @@ static	void	img_ocr_read	(void *data)
 
 	/* init OCR */
 	handle_ocr	= TessBaseAPICreate();
-	TessBaseAPIInit2(handle_ocr, NULL, lang_str,
 #ifdef	OEM_LSTM_ONLY
-						OEM_LSTM_ONLY);
+	TessBaseAPIInit2(handle_ocr, NULL, lang_str, OEM_LSTM_ONLY);
 #else
-						OEM_DEFAULT);
+	TessBaseAPIInit2(handle_ocr, NULL, lang_str, OEM_DEFAULT);
 #endif
-//						OEM_TESSERACT_LSTM_COMBINED);
+/*	TessBaseAPIInit2(handle_ocr, NULL, lang_str, OEM_TESSERACT_LSTM_COMBINED);*/
 	if (conf) {
 		/* Configure OCR (whitelist chars) */
 		TessBaseAPIReadConfigFile(handle_ocr, conf_str);
@@ -110,7 +111,6 @@ static	void	img_ocr_read	(void *data)
 				data_cast->img.B_per_pix,
 				data_cast->img.B_per_line);
 	TessBaseAPIRecognize(handle_ocr, NULL);
-	char	*txt;
 	txt	= TessBaseAPIGetUTF8Text(handle_ocr);
 
 	/* Copy text to global variable */
diff --git a/modules/image/src/img_orb.cpp b/modules/image/src/img_orb.cpp
index 6d91085..113f3dd 100644
--- a/modules/image/src/img_orb.cpp
+++ b/modules/image/src/img_orb.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/image/src/img_zbar.cpp b/modules/image/src/img_zbar.cpp
index 5a976a6..fe2b669 100644
--- a/modules/image/src/img_zbar.cpp
+++ b/modules/image/src/img_zbar.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/menu/inc/menu_clui.h b/modules/menu/inc/menu_clui.h
index 49de943..a915645 100644
--- a/modules/menu/inc/menu_clui.h
+++ b/modules/menu/inc/menu_clui.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -13,7 +14,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	menu_clui	(void);
+void	menu_clui	(void);
 
 
 /******************************************************************************
diff --git a/modules/menu/inc/menu_iface.h b/modules/menu/inc/menu_iface.h
index 09a1164..1b76e0b 100644
--- a/modules/menu/inc/menu_iface.h
+++ b/modules/menu/inc/menu_iface.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/menu/inc/menu_iface.hpp b/modules/menu/inc/menu_iface.hpp
index 1b5b60c..6128711 100644
--- a/modules/menu/inc/menu_iface.hpp
+++ b/modules/menu/inc/menu_iface.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -29,13 +30,13 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	int	menu_iface_mode;
+extern	int	menu_iface_mode;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	menu_iface	(void);
+void	menu_iface	(void);
 
 
 /******************************************************************************
diff --git a/modules/menu/inc/menu_tui.h b/modules/menu/inc/menu_tui.h
index 74cfd5f..0f8e442 100644
--- a/modules/menu/inc/menu_tui.h
+++ b/modules/menu/inc/menu_tui.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -13,7 +14,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	menu_tui	(void);
+void	menu_tui	(void);
 
 
 /******************************************************************************
diff --git a/modules/menu/inc/parser.h b/modules/menu/inc/parser.h
index a29afcd..3843017 100644
--- a/modules/menu/inc/parser.h
+++ b/modules/menu/inc/parser.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/menu/inc/parser.hpp b/modules/menu/inc/parser.hpp
index 700a0aa..e40bbd3 100644
--- a/modules/menu/inc/parser.hpp
+++ b/modules/menu/inc/parser.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -19,7 +20,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	parser	(int argc, char *argv[]);
+void	parser	(int argc, char *argv[]);
 
 
 /******************************************************************************
diff --git a/modules/menu/src/menu_clui.c b/modules/menu/src/menu_clui.c
index db2a11e..f5bb045 100644
--- a/modules/menu/src/menu_clui.c
+++ b/modules/menu/src/menu_clui.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -42,32 +43,38 @@ void	menu_clui	(void)
 	ch	= 'n';
 	printf("Read 'Disclaimer of warranty'? (yes/NO): ");
 	fgets(buff, BUFF_SIZE, stdin);
-	sscanf(buff, " %c", &ch);
+	if (sscanf(buff, " %c", &ch)) {
+		return;
+	}
 	if (ch == 'y' || ch == 'Y') {
-		puts (" >yes");
+		printf(" >yes\n");
 		print_share_file(SHARE_DISCLAIMER);
 	} else {
-		puts (" >NO");
+		printf(" >NO\n");
 	}
 
 	ch	= 'n';
 	printf("Read 'License'? (yes/NO): ");
 	fgets(buff, BUFF_SIZE, stdin);
-	sscanf(buff, " %c", &ch);
+	if (sscanf(buff, " %c", &ch)) {
+		return;
+	}
 	if (ch == 'y' || ch == 'Y') {
-		puts (" >yes");
+		printf(" >yes\n");
 		print_share_file(SHARE_LICENSE);
 	} else {
-		puts (" >NO");
+		printf(" >NO\n");
 	}
 #if 0
 	printf("Game interface? (NCURSES/text): ");
-	scanf(" %c%*s ", &ch);
+	if (sscanf(buff, " %c", &ch)) {
+		return;
+	}
 	if (ch == 't' || ch == 'T') {
-		puts (" >text");
+		printf(" >text\n");
 		// FIXME
 	} else {
-		puts (" >NCURSES");
+		printf(" >NCURSES\n");
 		// FIXME
 	}
 #endif
@@ -81,7 +88,7 @@ void	menu_clui	(void)
 static	void	menu_clui_load		(void)
 {
 #if 0
-	/* File name */ // FIXME
+	/* File name */ /* FIXME */
 	alx_w_getfname(USER_SAVED_DIR, saved_name, "File name:", saved_name, NULL);
 #endif
 	menu_clui_start();
@@ -89,7 +96,7 @@ static	void	menu_clui_load		(void)
 
 static	void	menu_clui_start		(void)
 {
-	puts(" >>START:");
+	printf(" >>START:\n");
 	start_switch();
 
 	char	buff [BUFF_SIZE];
@@ -98,14 +105,16 @@ static	void	menu_clui_start		(void)
 	ch	= 'm';
 	printf("Load again? (MENU/load/exit): ");
 	fgets(buff, BUFF_SIZE, stdin);
-	sscanf(buff, " %c", &ch);
+	if (sscanf(buff, " %c", &ch)) {
+		return;
+	}
 	if (ch == 'p' || ch == 'P') {
-		puts (" >load");
+		printf(" >load\n");
 		menu_clui_start();
 	} else if (ch == 'e' || ch == 'E') {
-		puts (" >exit!");
+		printf(" >exit!\n");
 	} else {
-		puts (" >MENU");
+		printf(" >MENU\n");
 		menu_clui();
 	}
 }
diff --git a/modules/menu/src/menu_iface.c b/modules/menu/src/menu_iface.c
index 03b1413..384fa35 100644
--- a/modules/menu/src/menu_iface.c
+++ b/modules/menu/src/menu_iface.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/menu/src/menu_tui.c b/modules/menu/src/menu_tui.c
index fd760cf..5654b40 100644
--- a/modules/menu/src/menu_tui.c
+++ b/modules/menu/src/menu_tui.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -44,16 +45,19 @@ static	void	menu_tui_devel		(void);
  ******************************************************************************/
 void	menu_tui		(void)
 {
+	int	h;
+	int	w;
+	int	N;
+	bool	wh;
+	int	sw;
+
 	alx_resume_curses();
 
 	/* Menu dimensions & options */
-	int	h;
-	int	w;
 	h	= 23;
 	w	= 80;
-	int	N;
 	N	= 4;
-	struct Alx_Menu	mnu[4]	= {
+	static const struct Alx_Menu	mnu[4]	= {
 		{7, 4, "[0]	Exit program"},
 		{2, 4, "[1]	Continue"},
 		{4, 4, "[2]	Disclaimer of warranty"},
@@ -61,8 +65,6 @@ void	menu_tui		(void)
 	};
 
 	/* Menu */
-	bool	wh;
-	int	sw;
 	wh	= true;
 	while (wh) {
 		/* Menu loop */
@@ -103,19 +105,24 @@ void	menu_tui		(void)
  ******************************************************************************/
 static	void	menu_tui_continue	(void)
 {
-	/* Menu dimensions & options */
 	WINDOW	*win;
 	int	h;
 	int	w;
 	int	r;
 	int	c;
+	int	N;
+	int	w2;
+	int	r2;
+	bool	wh;
+	int	sw;
+
+	/* Menu dimensions & options */
 	h	= 23;
 	w	= 80;
 	r	= 1;
 	c	= (80 - w) / 2;
-	int	N;
 	N	= 6;
-	struct Alx_Menu	mnu[6]	= {
+	static const struct Alx_Menu	mnu[6]	= {
 		{8, 4, "[0]	Back"},
 		{2, 4, "[1]	Start"},
 		{3, 4, "[2]	Select"},
@@ -125,15 +132,11 @@ static	void	menu_tui_continue	(void)
 	};
 
 	/* Input box */
-	int	w2;
-	int	r2;
 	w2	= w - 8;
 	r2	= r + h - 5;
-	char	*txt[]	= {"File name:"};
+	static const char	*txt[]	= {"File name:"};
 
 	/* Menu */
-	bool	wh;
-	int	sw;
 	wh	= true;
 	while (wh) {
 		/* Menu loop */
@@ -186,21 +189,22 @@ static	void	menu_tui_continue	(void)
 
 static	void	menu_tui_select	(void)
 {
-	/* Menu dimensions & options */
 	int	h;
 	int	w;
+	int	N;
+	int	sw;
+
+	/* Menu dimensions & options */
 	h	= 23;
 	w	= 80;
-	int	N;
 	N	= 3;
-	struct Alx_Menu	mnu[3]	= {
+	static const struct Alx_Menu	mnu[3]	= {
 		{6, 4, "[0]	Back"},
 		{2, 4, "[1]	Single image"},
 		{4, 4, "[2]	Series"}
 	};
 
 	/* Menu loop */
-	int	sw;
 	sw	= alx_menu(h, w, N, mnu, "SELECT MODE:");
 
 	/* Selection */
@@ -218,14 +222,16 @@ static	void	menu_tui_select	(void)
 
 static	void	menu_tui_series	(void)
 {
-	/* Menu dimensions & options */
 	int	h;
 	int	w;
+	int	N;
+	int	sw;
+
+	/* Menu dimensions & options */
 	h	= 23;
 	w	= 80;
-	int	N;
 	N	= 6;
-	struct Alx_Menu	mnu[6]	= {
+	static const struct Alx_Menu	mnu[6]	= {
 		{8, 4, "[0]	Back"},
 		{2, 4, "[1]	Label"},
 		{3, 4, "[2]	Objects"},
@@ -235,7 +241,6 @@ static	void	menu_tui_series	(void)
 	};
 
 	/* Menu loop */
-	int	sw;
 	sw	= alx_menu(h, w, N, mnu, "SELECT LEVEL:");
 
 	/* Selection */
@@ -266,13 +271,18 @@ static	void	menu_tui_devel		(void)
 	int	w;
 	int	r;
 	int	c;
+	int	N;
+	int	w2;
+	int	r2;
+	bool	wh;
+	int	sw;
+
 	h	= 23;
 	w	= 80;
 	r	= 1;
 	c	= (80 - w) / 2;
-	int	N;
 	N	= 4;
-	struct Alx_Menu	mnu[4]	= {
+	static const struct Alx_Menu	mnu[4]	= {
 		{6, 4, "[0]	Back"},
 		{2, 4, "[1]	Change process mode"},
 		{3, 4, "[2]	Change log mode"},
@@ -280,11 +290,9 @@ static	void	menu_tui_devel		(void)
 	};
 
 	/* Input box */
-	int	w2;
-	int	r2;
 	w2	= w - 8;
 	r2	= r + h - 5;
-	char	*txt[]	= {
+	static const char	*txt[]	= {
 		"Modes: 0=Auto; 1=Stop@prod; 2=Delay@step; 3=Stop@step",
 		"Modes: 0=Results; 1=Operations; 2=All",
 		"Modes: 1=CLUI; 2=TUI"
@@ -294,8 +302,6 @@ static	void	menu_tui_devel		(void)
 	win	= newwin(h, w, r, c);
 
 	/* Menu loop */
-	bool	wh;
-	int	sw;
 	wh	= true;
 	while (wh) {
 		/* Selection */
@@ -308,8 +314,8 @@ static	void	menu_tui_devel		(void)
 
 		case 1:
 			proc_debug		= alx_w_getint(w2, r2, txt[0],
-						PROC_DBG_NO, 0, PROC_DBG_STOP_STEP,
-									NULL);
+						PROC_DBG_NO, 0,
+						PROC_DBG_STOP_STEP, NULL);
 			break;
 
 		case 2:
diff --git a/modules/menu/src/parser.c b/modules/menu/src/parser.c
index ef8cec9..d9faaf6 100644
--- a/modules/menu/src/parser.c
+++ b/modules/menu/src/parser.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -37,8 +38,8 @@
 /******************************************************************************
  ******* static functions *****************************************************
  ******************************************************************************/
-static	void	parse_file		(char* argument);
-static	void	parse_iface		(char* argument);
+static	void	parse_file	(char *argument);
+static	void	parse_iface	(char *argument);
 
 
 /******************************************************************************
@@ -106,10 +107,11 @@ void	parser	(int argc, char *argv[])
 /******************************************************************************
  ******* static functions *****************************************************
  ******************************************************************************/
-static	void	parse_file		(char* argument)
+static	void	parse_file	(char *argument)
 {
-	// FIXME
 	FILE	*fp;
+
+	/* FIXME */
 	fp	= fopen(argument, "r");
 	if (!fp) {
 		printf("--file argument not valid\n");
@@ -123,13 +125,16 @@ static	void	parse_file		(char* argument)
 	}
 }
 
-static	void	parse_iface		(char* argument)
+static	void	parse_iface	(char *argument)
 {
+
 	menu_iface_mode		= atoi(argument);
 	user_iface_mode		= menu_iface_mode;
-	if (menu_iface_mode < MENU_IFACE_CLUI || menu_iface_mode > MENU_IFACE_TUI) {
+	if ((menu_iface_mode < MENU_IFACE_CLUI)  ||
+					(menu_iface_mode > MENU_IFACE_TUI)) {
 		printf("--iface argument not valid\n");
-		printf("It must be an integer [%i U %i]\n", MENU_IFACE_CLUI, MENU_IFACE_TUI);
+		printf("It must be an integer [%i U %i]\n",
+					MENU_IFACE_CLUI, MENU_IFACE_TUI);
 		exit(EXIT_FAILURE);
 	}
 }
diff --git a/modules/proc/inc/proc_coins.h b/modules/proc/inc/proc_coins.h
index 7e29d7d..0052eb2 100644
--- a/modules/proc/inc/proc_coins.h
+++ b/modules/proc/inc/proc_coins.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -34,7 +35,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_coins		(void);
+int	proc_coins		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_coins.hpp b/modules/proc/inc/proc_coins.hpp
index 9315324..f1b0824 100644
--- a/modules/proc/inc/proc_coins.hpp
+++ b/modules/proc/inc/proc_coins.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -40,7 +41,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_coins		(void);
+int	proc_coins		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_common.h b/modules/proc/inc/proc_common.h
index 1d4077e..9f84504 100644
--- a/modules/proc/inc/proc_common.h
+++ b/modules/proc/inc/proc_common.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -28,10 +29,10 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	proc_show_img		(void);
+void	proc_show_img		(void);
 
-	void	clock_start		(void);
-	void	clock_stop		(const char  *txt);
+void	clock_start		(void);
+void	clock_stop		(const char  *txt);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_common.hpp b/modules/proc/inc/proc_common.hpp
index 7332b84..5ba5faf 100644
--- a/modules/proc/inc/proc_common.hpp
+++ b/modules/proc/inc/proc_common.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/inc/proc_iface.h b/modules/proc/inc/proc_iface.h
index 8ce304c..1001702 100644
--- a/modules/proc/inc/proc_iface.h
+++ b/modules/proc/inc/proc_iface.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -50,15 +51,15 @@
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	int	proc_debug;
-	extern	int	proc_mode;
+extern	int	proc_debug;
+extern	int	proc_mode;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_iface_single	(int action);
-	void	proc_iface_series	(void);
+int	proc_iface_single	(int action);
+void	proc_iface_series	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_iface.hpp b/modules/proc/inc/proc_iface.hpp
index ede95f7..a0d0f7d 100644
--- a/modules/proc/inc/proc_iface.hpp
+++ b/modules/proc/inc/proc_iface.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -56,15 +57,15 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	int	proc_debug;
-	extern	int	proc_mode;
+extern	int	proc_debug;
+extern	int	proc_mode;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_iface_single	(int action);
-	void	proc_iface_series	(void);
+int	proc_iface_single	(int action);
+void	proc_iface_series	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_label.h b/modules/proc/inc/proc_label.h
index a1091b8..d1b78f1 100644
--- a/modules/proc/inc/proc_label.h
+++ b/modules/proc/inc/proc_label.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -36,7 +37,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_label		(void);
+int	proc_label		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_label.hpp b/modules/proc/inc/proc_label.hpp
index b456a55..ebb4446 100644
--- a/modules/proc/inc/proc_label.hpp
+++ b/modules/proc/inc/proc_label.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -42,7 +43,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_label		(void);
+int	proc_label		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_lighters.h b/modules/proc/inc/proc_lighters.h
index f10c533..5771aad 100644
--- a/modules/proc/inc/proc_lighters.h
+++ b/modules/proc/inc/proc_lighters.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -33,7 +34,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_lighter	(void);
+int	proc_lighter	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_lighters.hpp b/modules/proc/inc/proc_lighters.hpp
index cc16a79..7d69dc6 100644
--- a/modules/proc/inc/proc_lighters.hpp
+++ b/modules/proc/inc/proc_lighters.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -39,7 +40,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_lighter	(void);
+int	proc_lighter	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_objects.h b/modules/proc/inc/proc_objects.h
index be841ba..ed865fd 100644
--- a/modules/proc/inc/proc_objects.h
+++ b/modules/proc/inc/proc_objects.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -34,8 +35,8 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_objects_calibrate	(void);
-	int	proc_objects		(void);
+int	proc_objects_calibrate	(void);
+int	proc_objects		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_objects.hpp b/modules/proc/inc/proc_objects.hpp
index 1a3084f..8794150 100644
--- a/modules/proc/inc/proc_objects.hpp
+++ b/modules/proc/inc/proc_objects.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -40,8 +41,8 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_objects_calibrate	(void);
-	int	proc_objects		(void);
+int	proc_objects_calibrate	(void);
+int	proc_objects		(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_resistor.h b/modules/proc/inc/proc_resistor.h
index ca60a8a..dea2ed7 100644
--- a/modules/proc/inc/proc_resistor.h
+++ b/modules/proc/inc/proc_resistor.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -36,7 +37,7 @@
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_resistor		(void);
+int	proc_resistor	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/inc/proc_resistor.hpp b/modules/proc/inc/proc_resistor.hpp
index fce85d8..31f70cf 100644
--- a/modules/proc/inc/proc_resistor.hpp
+++ b/modules/proc/inc/proc_resistor.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -42,7 +43,7 @@ extern	"C" {
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	int	proc_resistor		(void);
+int	proc_resistor	(void);
 
 
 /******************************************************************************
diff --git a/modules/proc/src/proc_coins.cpp b/modules/proc/src/proc_coins.cpp
index 8f26e71..dd347c9 100644
--- a/modules/proc/src/proc_coins.cpp
+++ b/modules/proc/src/proc_coins.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_common.cpp b/modules/proc/src/proc_common.cpp
index 10a8a93..c1e19d5 100644
--- a/modules/proc/src/proc_common.cpp
+++ b/modules/proc/src/proc_common.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_iface.c b/modules/proc/src/proc_iface.c
index 4372b3c..3948039 100644
--- a/modules/proc/src/proc_iface.c
+++ b/modules/proc/src/proc_iface.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_label.cpp b/modules/proc/src/proc_label.cpp
index 57acf09..840e29e 100644
--- a/modules/proc/src/proc_label.cpp
+++ b/modules/proc/src/proc_label.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_lighters.cpp b/modules/proc/src/proc_lighters.cpp
index f7519a3..a9543b8 100644
--- a/modules/proc/src/proc_lighters.cpp
+++ b/modules/proc/src/proc_lighters.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_objects.cpp b/modules/proc/src/proc_objects.cpp
index 026cb25..6caa919 100644
--- a/modules/proc/src/proc_objects.cpp
+++ b/modules/proc/src/proc_objects.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/proc/src/proc_resistor.cpp b/modules/proc/src/proc_resistor.cpp
index 58f1fe4..26ef739 100644
--- a/modules/proc/src/proc_resistor.cpp
+++ b/modules/proc/src/proc_resistor.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/save/inc/save.h b/modules/save/inc/save.h
index a3388d7..4ab65ab 100644
--- a/modules/save/inc/save.h
+++ b/modules/save/inc/save.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -41,30 +42,30 @@
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	char	home_path [FILENAME_MAX];
-	extern	char	user_prog_path [FILENAME_MAX];
-	extern	char	saved_path [FILENAME_MAX];
-	extern	char	labels_path [FILENAME_MAX];
-	extern	char	labels_fail_path [FILENAME_MAX];
-	extern	char	lighters_path [FILENAME_MAX];
-	extern	char	lighters_fail_path [FILENAME_MAX];
-	extern	char	objects_path [FILENAME_MAX];
-	extern	char	objects_fail_path [FILENAME_MAX];
-	extern	char	coins_path [FILENAME_MAX];
-	extern	char	coins_fail_path [FILENAME_MAX];
-	extern	char	resistors_path [FILENAME_MAX];
-	extern	char	resistors_fail_path [FILENAME_MAX];
-	extern	char	saved_name [FILENAME_MAX];
+extern	char	home_path [FILENAME_MAX];
+extern	char	user_prog_path [FILENAME_MAX];
+extern	char	saved_path [FILENAME_MAX];
+extern	char	labels_path [FILENAME_MAX];
+extern	char	labels_fail_path [FILENAME_MAX];
+extern	char	lighters_path [FILENAME_MAX];
+extern	char	lighters_fail_path [FILENAME_MAX];
+extern	char	objects_path [FILENAME_MAX];
+extern	char	objects_fail_path [FILENAME_MAX];
+extern	char	coins_path [FILENAME_MAX];
+extern	char	coins_fail_path [FILENAME_MAX];
+extern	char	resistors_path [FILENAME_MAX];
+extern	char	resistors_fail_path [FILENAME_MAX];
+extern	char	saved_name [FILENAME_MAX];
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	save_init	(void);
-	void	save_cleanup	(void);
-	void	save_clr	(void);
-	void	load_image_file	(const char *fpath, const char *fname);
-	void	save_image_file	(const char *fpath, const char *save_as);
+void	save_init	(void);
+void	save_cleanup	(void);
+void	save_clr	(void);
+void	load_image_file	(const char *fpath, const char *fname);
+void	save_image_file	(const char *fpath, const char *save_as);
 
 
 /******************************************************************************
diff --git a/modules/save/inc/save.hpp b/modules/save/inc/save.hpp
index d7640a1..bf60bca 100644
--- a/modules/save/inc/save.hpp
+++ b/modules/save/inc/save.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -51,31 +52,31 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	class cv::Mat	image;
-	extern	char		home_path [FILENAME_MAX];
-	extern	char		user_prog_path [FILENAME_MAX];
-	extern	char		saved_path [FILENAME_MAX];
-	extern	char		labels_path [FILENAME_MAX];
-	extern	char		labels_fail_path [FILENAME_MAX];
-	extern	char		lighters_path [FILENAME_MAX];
-	extern	char		lighters_fail_path [FILENAME_MAX];
-	extern	char		objects_path [FILENAME_MAX];
-	extern	char		objects_fail_path [FILENAME_MAX];
-	extern	char		coins_path [FILENAME_MAX];
-	extern	char		coins_fail_path [FILENAME_MAX];
-	extern	char		resistors_path [FILENAME_MAX];
-	extern	char		resistors_fail_path [FILENAME_MAX];
-	extern	char		saved_name [FILENAME_MAX];
+extern	class cv::Mat	image;
+extern	char		home_path [FILENAME_MAX];
+extern	char		user_prog_path [FILENAME_MAX];
+extern	char		saved_path [FILENAME_MAX];
+extern	char		labels_path [FILENAME_MAX];
+extern	char		labels_fail_path [FILENAME_MAX];
+extern	char		lighters_path [FILENAME_MAX];
+extern	char		lighters_fail_path [FILENAME_MAX];
+extern	char		objects_path [FILENAME_MAX];
+extern	char		objects_fail_path [FILENAME_MAX];
+extern	char		coins_path [FILENAME_MAX];
+extern	char		coins_fail_path [FILENAME_MAX];
+extern	char		resistors_path [FILENAME_MAX];
+extern	char		resistors_fail_path [FILENAME_MAX];
+extern	char		saved_name [FILENAME_MAX];
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	save_init	(void);
-	void	save_cleanup	(void);
-	void	save_clr	(void);
-	void	load_image_file	(const char *fpath, const char *fname);
-	void	save_image_file	(const char *fpath, const char *save_as);
+void	save_init	(void);
+void	save_cleanup	(void);
+void	save_clr	(void);
+void	load_image_file	(const char *fpath, const char *fname);
+void	save_image_file	(const char *fpath, const char *save_as);
 
 
 /******************************************************************************
diff --git a/modules/save/src/save.cpp b/modules/save/src/save.cpp
index 6e948a8..f9e45f8 100644
--- a/modules/save/src/save.cpp
+++ b/modules/save/src/save.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/user/inc/user_clui.h b/modules/user/inc/user_clui.h
index 916fe00..807c508 100644
--- a/modules/user/inc/user_clui.h
+++ b/modules/user/inc/user_clui.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/user/inc/user_iface.h b/modules/user/inc/user_iface.h
index dde7b64..a994ae1 100644
--- a/modules/user/inc/user_iface.h
+++ b/modules/user/inc/user_iface.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -136,22 +137,22 @@
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	int			user_iface_mode;
-	extern	struct User_Iface_Log	user_iface_log;
+extern	int			user_iface_mode;
+extern	struct User_Iface_Log	user_iface_log;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	user_iface_init		(void);
-	void	user_iface_cleanup	(void);
-	void	user_iface		(void);
-	void	user_iface_show_log	(const char *title, const char *subtitle);
-	void	user_iface_fname	(const char *filepath, char *filename);
-	double	user_iface_getdbl	(double m, double def, double M,
-					const char *title, const char *help);
-	int64_t	user_iface_getint	(double m, int64_t def, double M,
-					const char *title, const char *help);
+void	user_iface_init		(void);
+void	user_iface_cleanup	(void);
+void	user_iface		(void);
+void	user_iface_show_log	(const char *title, const char *subtitle);
+void	user_iface_fname	(const char *filepath, char *filename);
+double	user_iface_getdbl	(double m, double def, double M,
+				const char *title, const char *help);
+int64_t	user_iface_getint	(double m, int64_t def, double M,
+				const char *title, const char *help);
 
 
 /******************************************************************************
diff --git a/modules/user/inc/user_iface.hpp b/modules/user/inc/user_iface.hpp
index d01f3a3..26fadfb 100644
--- a/modules/user/inc/user_iface.hpp
+++ b/modules/user/inc/user_iface.hpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -142,22 +143,22 @@ extern	"C" {
 /******************************************************************************
  ******* variables ************************************************************
  ******************************************************************************/
-	extern	int			user_iface_mode;
-	extern	struct User_Iface_Log	user_iface_log;
+extern	int			user_iface_mode;
+extern	struct User_Iface_Log	user_iface_log;
 
 
 /******************************************************************************
  ******* functions ************************************************************
  ******************************************************************************/
-	void	user_iface_init		(void);
-	void	user_iface_cleanup	(void);
-	void	user_iface		(void);
-	void	user_iface_show_log	(const char *title, const char *subtitle);
-	void	user_iface_fname	(const char *filepath, char *filename);
-	double	user_iface_getdbl	(double m, double def, double M,
-					const char *title, const char *help);
-	int64_t	user_iface_getint	(double m, int64_t def, double M,
-					const char *title, const char *help);
+void	user_iface_init		(void);
+void	user_iface_cleanup	(void);
+void	user_iface		(void);
+void	user_iface_show_log	(const char *title, const char *subtitle);
+void	user_iface_fname	(const char *filepath, char *filename);
+double	user_iface_getdbl	(double m, double def, double M,
+				const char *title, const char *help);
+int64_t	user_iface_getint	(double m, int64_t def, double M,
+				const char *title, const char *help);
 
 
 /******************************************************************************
diff --git a/modules/user/inc/user_tui.h b/modules/user/inc/user_tui.h
index c9c027c..64dd880 100644
--- a/modules/user/inc/user_tui.h
+++ b/modules/user/inc/user_tui.h
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
diff --git a/modules/user/src/user_clui.c b/modules/user/src/user_clui.c
index 218c14b..11e7db1 100644
--- a/modules/user/src/user_clui.c
+++ b/modules/user/src/user_clui.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -70,22 +71,22 @@ int	user_clui		(const char *title, const char *subtitle)
 
 void	user_clui_fname		(const char *filepath, char *filename)
 {
-	puts("File name:");
-	puts("Valid extensions: .bmp .dib .jpeg .png .pbm .pgm .ppm .tiff");
+	printf("File name:\n");
+	printf("Valid extensions: .bmp .dib .jpeg .png .pbm .pgm .ppm .tiff\n");
 	fgets(filename, FILENAME_MAX, stdin);
 	alx_sscan_fname(filepath, filename, false, filename);
 }
 
 void	user_clui_show_log	(const char *title, const char *subtitle)
 {
-	puts("________________________________________________________________________________");
+	printf("________________________________________________________________________________\n");
 
 	/* Board */
 	log_loop();
 
 	/* Subtitle & title */
 	printf("%s	-	%s\n", subtitle, title);
-	puts("--------------------------------------------------------------------------------");
+	printf("--------------------------------------------------------------------------------\n");
 
 }
 
@@ -128,7 +129,10 @@ static	int	usr_input	(void)
 	fgets(buff, BUFF_SIZE, stdin);
 
 	/* Interpret input */
-	sscanf(buff, " %c%c%c%c%c", &ch[0], &ch[1], &ch[2], &ch[3], &ch[4]);
+	if (sscanf(buff, " %c%c%c%c%c", &ch[0], &ch[1], &ch[2], &ch[3], &ch[4])) {
+		ch[0]	= '\0';
+	}
+	action	= USER_IFACE_ACT_FOO;
 	switch (ch[0]) {
 	case '+':
 		action	= USER_IFACE_ACT_APPLY;
diff --git a/modules/user/src/user_iface.c b/modules/user/src/user_iface.c
index f465944..46576f3 100644
--- a/modules/user/src/user_iface.c
+++ b/modules/user/src/user_iface.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -43,8 +44,8 @@ struct User_Iface_Log	user_iface_log;
 /******************************************************************************
  ******* static functions *****************************************************
  ******************************************************************************/
-void	user_iface_act		(int action);
-void	user_iface_show_ocr	(void);
+static	void	user_iface_act		(int action);
+static	void	user_iface_show_ocr	(void);
 
 
 /******************************************************************************
@@ -188,7 +189,7 @@ double	user_iface_getdbl	(double m, double def, double M,
 /******************************************************************************
  ******* static functions *****************************************************
  ******************************************************************************/
-void	user_iface_act		(int action)
+static	void	user_iface_act		(int action)
 {
 	if (action & USER_IFACE_ACT_USRI) {
 		switch (action) {
@@ -208,7 +209,7 @@ void	user_iface_act		(int action)
 	}
 }
 
-void	user_iface_show_ocr	(void)
+static	void	user_iface_show_ocr	(void)
 {
 	switch (user_iface_mode) {
 	case USER_IFACE_CLUI:
diff --git a/modules/user/src/user_tui.c b/modules/user/src/user_tui.c
index 83c729d..70220fc 100644
--- a/modules/user/src/user_tui.c
+++ b/modules/user/src/user_tui.c
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/
 
 
@@ -49,21 +50,30 @@ static	void	show_help	(void);
  ******************************************************************************/
 void	user_tui_init		(void)
 {
+	int	h1;
+	int	w1;
+	int	r1;
+	int	c1;
+	int	h2;
+	int	w2;
+	int	r2;
+	int	c2;
+
 	/* Use curses mode */
 	alx_resume_curses();
 
 	/* Dimensions: log */
-	const int	h1 =	54;
-	const int	w1 =	40;
-	const int	r1 =	0;
-	const int	c1 =	30;
-	win_log		= newwin(h1, w1, r1, c1);
+	h1	= 54;
+	w1	= 40;
+	r1	= 0;
+	c1	= 30;
+	win_log	= newwin(h1, w1, r1, c1);
 
 	/* Dimensions: help */
-	const int	h2 =	54;
-	const int	w2 =	40;
-	const int	r2 =	0;
-	const int	c2 =	0;
+	h2	= 54;
+	w2	= 40;
+	r2	= 0;
+	c2	= 0;
 	win_help	= newwin(h2, w2, r2, c2);
 
 	/* Activate keypad, don't echo input */
@@ -73,6 +83,7 @@ void	user_tui_init		(void)
 
 void	user_tui_cleanup	(void)
 {
+
 	/* Del wins & return to terminal mode */
 	alx_win_del(win_log);
 	alx_win_del(win_help);
@@ -82,7 +93,6 @@ void	user_tui_cleanup	(void)
 int	user_tui		(const char *title, const char *subtitle)
 {
 	int	action;
-//	action	= USER_IFACE_ACT_FOO;
 
 	show_help();
 	user_tui_show_log(title, subtitle);
@@ -93,9 +103,10 @@ int	user_tui		(const char *title, const char *subtitle)
 
 void	user_tui_fname		(const char *filepath, char *filename)
 {
-	/* Input box */
 	int	w;
 	int	r;
+
+	/* Input box */
 	w	= 75;
 	r	= 10;
 
@@ -106,6 +117,7 @@ void	user_tui_fname		(const char *filepath, char *filename)
 
 void	user_tui_show_log	(const char *title, const char *subtitle)
 {
+
 	/* Clear & box */
 	werase(win_log);
 	box(win_log, 0, 0);
@@ -125,15 +137,17 @@ void	user_tui_show_log	(const char *title, const char *subtitle)
 double	user_tui_getdbl		(double m, double def, double M,
 				const char *title, const char *help)
 {
-	/* Input box */
 	int	w;
 	int	r;
+	double	R;
+
+	/* Input box */
 	w	= 75;
 	r	= 10;
 
 	/* Request int */
-	double	R;
 	R	= alx_w_getdbl(w, r, title, m, def, M, help);
+
 	return	R;
 }
 
@@ -143,17 +157,20 @@ int64_t	user_tui_getint		(double m, int64_t def, double M,
 	/* Input box */
 	int	w;
 	int	r;
+	int64_t	i;
+
 	w	= 75;
 	r	= 10;
 
 	/* Request int */
-	int64_t	i;
 	i	= alx_w_getint(w, r, title, m, def, M, help);
+
 	return	i;
 }
 
 void	user_tui_show_ocr	(void)
 {
+
 	alx_pause_curses();
 
 	printf("%s", img_ocr_text);
@@ -705,12 +722,12 @@ static	int	usr_input	(void)
  *	*	*	*	*	*	*	*	*	*/
 static	void	show_help	(void)
 {
-	/* Clear */
-	werase(win_help);
-
 	int	r;
 	int	c;
 
+	/* Clear */
+	werase(win_help);
+
 	r	= 0;
 	c	= 0;
 	mvwprintw(win_help, r++, c, "Apply:			%s",	"Space");
diff --git a/src/main.cpp b/src/main.cpp
index f672b68..c213594 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,5 +1,6 @@
 /******************************************************************************
  *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
  ******************************************************************************/