Removed unused library 'ncurses' from xlosetup's dependencies

6 files changed, 8 insertions, 976 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 26e786f..ce84d9a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,8 +31,6 @@ include(Build)
 
 # search for required packages
 find_package(Git REQUIRED)
-find_package(Libcap REQUIRED)
-find_package(Libncurses REQUIRED)
 find_package(KernelHeaders REQUIRED)
 
 # set linux kernel modules specific default settings
diff --git a/README.md b/README.md
index bd3da5b..fb2f01a 100644
--- a/README.md
+++ b/README.md
@@ -29,8 +29,7 @@ pacman -S git \
           cmake \
           gcc \
           linux-headers \  # or linux-lts-headers
-          libcap \
-          ncurses \
+          libcap \  # required only in Debug build configuration
           dpkg \
           rpm-tools
 ```
@@ -42,8 +41,7 @@ apt-get install git \
                 cmake \
                 gcc \
                 raspberrypi-kernel-headers \
-                libcap-dev \
-                libncurses-dev \
+                libcap-dev \  # required only in Debug build configuration
                 rpm
 ```
 
@@ -54,8 +52,7 @@ apt-get install git \
                 cmake \
                 gcc \
                 linux-headers-generic \
-                libcap-dev \
-                libncurses-dev \
+                libcap-dev \  # required only in Debug build configuration
                 rpm
 ```
 
@@ -66,8 +63,7 @@ apt-get install git \
                 cmake \
                 gcc \
                 linux-headers-generic \
-                libcap-dev \
-                libncurses-dev \
+                libcap-dev \  # required only in Debug build configuration
                 rpm
 ```
 
@@ -79,8 +75,7 @@ yum install git \
             gcc \
             kernel-devel \
             elfutils-libelf-devel \
-            libcap-devel \
-            ncurses-devel \
+            libcap-devel \  # required only in Debug build configuration
             rpm-build
 ```
 
diff --git a/cmake/FindLibncurses.cmake b/cmake/FindLibncurses.cmake
deleted file mode 100644
index 57234a1..0000000
--- a/cmake/FindLibncurses.cmake
+++ /dev/null
@@ -1,56 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Copyright (C) 2020 Manuel Bentele <development@manuel-bentele.de>
-#
-
-# Use pkg-config to get the directories and then use these values
-# in the FIND_PATH() and FIND_LIBRARY() calls
-find_package(PkgConfig QUIET)
-pkg_check_modules(PKG_Libncurses QUIET libncurses)
-
-set(Libncurses_COMPILE_OPTIONS ${PKG_Libncurses_CFLAGS_OTHER})
-set(Libncurses_VERSION ${PKG_Libncurses_VERSION})
-
-find_path(Libncurses_INCLUDE_DIR
-          NAMES ncursesw/ncurses.h
-                ncurses/ncurses.h
-                ncurses.h
-                ncursesw/term.h
-                ncurses/term.h
-                term.h
-          HINTS ${PKG_Libncurses_INCLUDE_DIRS})
-find_library(Libncurses_LIBRARY
-             NAMES ncurses
-             HINTS ${PKG_Libncurses_LIBRARY_DIRS})
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Libncurses
-                                  FOUND_VAR Libncurses_FOUND
-                                  REQUIRED_VARS Libncurses_LIBRARY
-                                                Libncurses_INCLUDE_DIR
-                                  VERSION_VAR Libncurses_VERSION
-                                  FAIL_MESSAGE "Library 'ncurses' is not available! Please install this required library!")
-
-if(Libncurses_FOUND AND NOT TARGET Libncurses::Libncurses)
-    add_library(Libncurses::Libncurses UNKNOWN IMPORTED)
-    set_target_properties(Libncurses::Libncurses PROPERTIES
-                          IMPORTED_LOCATION "${Libncurses_LIBRARY}"
-                          INTERFACE_COMPILE_OPTIONS "${Libncurses_COMPILE_OPTIONS}"
-                          INTERFACE_INCLUDE_DIRECTORIES "${Libncurses_INCLUDE_DIR}")
-endif(Libncurses_FOUND AND NOT TARGET Libncurses::Libncurses)
-
-mark_as_advanced(Libncurses_LIBRARY Libncurses_INCLUDE_DIR)
-
-if(Libncurses_FOUND)
-    set(Libncurses_LIBRARIES ${Libncurses_LIBRARY})
-    set(Libncurses_INCLUDE_DIRS ${Libncurses_INCLUDE_DIR})
-endif(Libncurses_FOUND)
-
-# print found information
-if(${CMAKE_VERSION} VERSION_GREATER "3.15.0")
-    message(VERBOSE "Libncurses_FOUND: ${Libncurses_FOUND}")
-    message(VERBOSE "Libncurses_VERSION: ${Libncurses_VERSION}")
-    message(VERBOSE "Libncurses_INCLUDE_DIRS: ${Libncurses_INCLUDE_DIRS}")
-    message(VERBOSE "Libncurses_COMPILE_OPTIONS: ${Libncurses_COMPILE_OPTIONS}")
-    message(VERBOSE "Libncurses_LIBRARIES: ${Libncurses_LIBRARIES}")
-endif(${CMAKE_VERSION} VERSION_GREATER "3.15.0")
diff --git a/src/kernel/tests/CMakeLists.txt b/src/kernel/tests/CMakeLists.txt
index cf274ef..bf94122 100644
--- a/src/kernel/tests/CMakeLists.txt
+++ b/src/kernel/tests/CMakeLists.txt
@@ -3,6 +3,9 @@ cmake_minimum_required(VERSION 3.10)
 project(xloop-kernel-test
         LANGUAGES C)
 
+# requires 'cap' library in tests for include header <sys/capability.h>
+find_package(Libcap REQUIRED)
+
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include/old)
 
diff --git a/src/utils/lib/CMakeLists.txt b/src/utils/lib/CMakeLists.txt
index 1a92d32..9c4233e 100644
--- a/src/utils/lib/CMakeLists.txt
+++ b/src/utils/lib/CMakeLists.txt
@@ -9,7 +9,6 @@ add_library(libcommon STATIC ${CMAKE_CURRENT_SOURCE_DIR}/blkdev.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/canonicalize.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/caputils.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/color-names.c
-                             ${CMAKE_CURRENT_SOURCE_DIR}/colors.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/cpuset.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/crc32.c
                              ${CMAKE_CURRENT_SOURCE_DIR}/crc32c.c
diff --git a/src/utils/lib/colors.c b/src/utils/lib/colors.c
deleted file mode 100644
index e317519..0000000
--- a/src/utils/lib/colors.c
+++ /dev/null
@@ -1,907 +0,0 @@
-/*
- * Copyright (C) 2012 Ondrej Oprala <ooprala@redhat.com>
- * Copyright (C) 2012-2014 Karel Zak <kzak@redhat.com>
- *
- * This file may be distributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <assert.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <ctype.h>
-
-#if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW)
-# if defined(HAVE_NCURSESW_NCURSES_H)
-#  include <ncursesw/ncurses.h>
-# elif defined(HAVE_NCURSES_NCURSES_H)
-#  include <ncurses/ncurses.h>
-# elif defined(HAVE_NCURSES_H)
-#  include <ncurses.h>
-# endif
-# if defined(HAVE_NCURSESW_TERM_H)
-#  include <ncursesw/term.h>
-# elif defined(HAVE_NCURSES_TERM_H)
-#  include <ncurses/term.h>
-# elif defined(HAVE_TERM_H)
-#  include <term.h>
-# endif
-#endif
-
-#include "c.h"
-#include "colors.h"
-#include "pathnames.h"
-#include "strutils.h"
-
-#include "debug.h"
-
-/*
- * Default behavior, may be overridden by terminal-colors.d/{enable,disable}.
- */
-#ifdef USE_COLORS_BY_DEFAULT
-# define UL_COLORMODE_DEFAULT	UL_COLORMODE_AUTO	/* check isatty() */
-#else
-# define UL_COLORMODE_DEFAULT	UL_COLORMODE_NEVER	/* no colors by default */
-#endif
-
-/*
- * terminal-colors.d debug stuff
- */
-static UL_DEBUG_DEFINE_MASK(termcolors);
-UL_DEBUG_DEFINE_MASKNAMES(termcolors) = UL_DEBUG_EMPTY_MASKNAMES;
-
-#define TERMCOLORS_DEBUG_INIT	(1 << 1)
-#define TERMCOLORS_DEBUG_CONF	(1 << 2)
-#define TERMCOLORS_DEBUG_SCHEME	(1 << 3)
-#define TERMCOLORS_DEBUG_ALL	0xFFFF
-
-#define DBG(m, x)       __UL_DBG(termcolors, TERMCOLORS_DEBUG_, m, x)
-#define ON_DBG(m, x)    __UL_DBG_CALL(termcolors, TERMCOLORS_DEBUG_, m, x)
-
-/*
- * terminal-colors.d file types
- */
-enum {
-	UL_COLORFILE_DISABLE,		/* .disable */
-	UL_COLORFILE_ENABLE,		/* .enable */
-	UL_COLORFILE_SCHEME,		/* .scheme */
-
-	__UL_COLORFILE_COUNT
-};
-
-struct ul_color_scheme {
-	char *name;
-	char *seq;
-};
-
-/*
- * Global colors control struct
- *
- * The terminal-colors.d/ evaluation is based on "scores":
- *
- *  filename                    score
- *  ---------------------------------------
- *  type			1
- *  @termname.type		10 + 1
- *  utilname.type		20 + 1
- *  utilname@termname.type	20 + 10 + 1
- *
- * the match with higher score wins. The score is per type.
- */
-struct ul_color_ctl {
-	const char	*utilname;	/* util name */
-	const char	*termname;	/* terminal name ($TERM) */
-
-	char		*sfile;	/* path to scheme */
-
-	struct ul_color_scheme	*schemes;	/* array with color schemes */
-	size_t			nschemes;	/* number of the items */
-	size_t			schemes_sz;	/* number of the allocated items */
-
-	int		mode;		/* UL_COLORMODE_* */
-	unsigned int	has_colors : 1,	/* based on mode and scores[] */
-			disabled   : 1, /* disable colors */
-			cs_configured : 1, /* color schemes read */
-			configured : 1; /* terminal-colors.d parsed */
-
-	int		scores[__UL_COLORFILE_COUNT];	/* the best match */
-};
-
-/*
- * Control struct, globally shared.
- */
-static struct ul_color_ctl ul_colors;
-
-static void colors_free_schemes(struct ul_color_ctl *cc);
-static int colors_read_schemes(struct ul_color_ctl *cc);
-
-/*
- * qsort/bsearch buddy
- */
-static int cmp_scheme_name(const void *a0, const void *b0)
-{
-	const struct ul_color_scheme *a = (const struct ul_color_scheme *) a0,
-				     *b = (const struct ul_color_scheme *) b0;
-	return strcmp(a->name, b->name);
-}
-
-/*
- * Resets control struct (note that we don't allocate the struct)
- */
-static void colors_reset(struct ul_color_ctl *cc)
-{
-	if (!cc)
-		return;
-
-	colors_free_schemes(cc);
-
-	free(cc->sfile);
-
-	cc->sfile = NULL;
-	cc->utilname = NULL;
-	cc->termname = NULL;
-	cc->mode = UL_COLORMODE_UNDEF;
-
-	memset(cc->scores, 0, sizeof(cc->scores));
-}
-
-static void colors_debug(struct ul_color_ctl *cc)
-{
-	size_t i;
-
-	if (!cc)
-		return;
-
-	printf("Colors:\n");
-	printf("\tutilname = '%s'\n", cc->utilname);
-	printf("\ttermname = '%s'\n", cc->termname);
-	printf("\tscheme file = '%s'\n", cc->sfile);
-	printf("\tmode = %s\n",
-			cc->mode == UL_COLORMODE_UNDEF ? "undefined" :
-			cc->mode == UL_COLORMODE_AUTO ?  "auto" :
-			cc->mode == UL_COLORMODE_NEVER ? "never" :
-			cc->mode == UL_COLORMODE_ALWAYS ? "always" : "???");
-	printf("\thas_colors = %d\n", cc->has_colors);
-	printf("\tdisabled = %d\n", cc->disabled);
-	printf("\tconfigured = %d\n", cc->configured);
-	printf("\tcs configured = %d\n", cc->cs_configured);
-
-	fputc('\n', stdout);
-
-	for (i = 0; i < ARRAY_SIZE(cc->scores); i++)
-		printf("\tscore %s = %d\n",
-				i == UL_COLORFILE_DISABLE ? "disable" :
-				i == UL_COLORFILE_ENABLE ? "enable" :
-				i == UL_COLORFILE_SCHEME ? "scheme" : "???",
-				cc->scores[i]);
-
-	fputc('\n', stdout);
-
-	for (i = 0; i < cc->nschemes; i++) {
-		printf("\tscheme #%02zu ", i);
-		color_scheme_enable(cc->schemes[i].name, NULL);
-		fputs(cc->schemes[i].name, stdout);
-		color_disable();
-		fputc('\n', stdout);
-	}
-	fputc('\n', stdout);
-}
-
-/*
- * Parses [[<utilname>][@<termname>].]<type>
- */
-static int filename_to_tokens(const char *str,
-			      const char **name, size_t *namesz,
-			      const char **term, size_t *termsz,
-			      int  *filetype)
-{
-	const char *type_start, *term_start, *p;
-
-	if (!str || !*str || *str == '.' || strlen(str) > PATH_MAX)
-		return -EINVAL;
-
-	/* parse .type */
-	p = strrchr(str, '.');
-	type_start = p ? p + 1 : str;
-
-	if (strcmp(type_start, "disable") == 0)
-		*filetype = UL_COLORFILE_DISABLE;
-	else if (strcmp(type_start, "enable") == 0)
-		*filetype = UL_COLORFILE_ENABLE;
-	else if (strcmp(type_start, "scheme") == 0)
-		*filetype = UL_COLORFILE_SCHEME;
-	else {
-		DBG(CONF, ul_debug("unknown type '%s'", type_start));
-		return 1;				/* unknown type */
-	}
-
-	if (type_start == str)
-		return 0;				/* "type" only */
-
-	/* parse @termname */
-	p = strchr(str, '@');
-	term_start = p ? p + 1 : NULL;
-	if (term_start) {
-		*term = term_start;
-		*termsz = type_start - term_start - 1;
-		if (term_start - 1 == str)
-			return 0;			/* "@termname.type" */
-	}
-
-	/* parse utilname */
-	p = term_start ? term_start : type_start;
-	*name =  str;
-	*namesz	= p - str - 1;
-
-	return 0;
-}
-
-/*
- * Scans @dirname and select the best matches for UL_COLORFILE_* types.
- * The result is stored to cc->scores. The path to the best "scheme"
- * file is stored to cc->scheme.
- */
-static int colors_readdir(struct ul_color_ctl *cc, const char *dirname)
-{
-	DIR *dir;
-	int rc = 0;
-	struct dirent *d;
-	char sfile[PATH_MAX] = { '\0' };
-	size_t namesz, termsz;
-
-	if (!dirname || !cc || !cc->utilname || !*cc->utilname)
-		return -EINVAL;
-
-	DBG(CONF, ul_debug("reading dir: '%s'", dirname));
-
-	dir = opendir(dirname);
-	if (!dir)
-		return -errno;
-
-	namesz = strlen(cc->utilname);
-	termsz = cc->termname ? strlen(cc->termname) : 0;
-
-	while ((d = readdir(dir))) {
-		int type, score = 1;
-		const char *tk_name = NULL, *tk_term = NULL;
-		size_t tk_namesz = 0, tk_termsz = 0;
-
-		if (*d->d_name == '.')
-			continue;
-#ifdef _DIRENT_HAVE_D_TYPE
-		if (d->d_type != DT_UNKNOWN && d->d_type != DT_LNK &&
-		    d->d_type != DT_REG)
-			continue;
-#endif
-		if (filename_to_tokens(d->d_name,
-				       &tk_name, &tk_namesz,
-				       &tk_term, &tk_termsz, &type) != 0)
-			continue;
-
-		/* count theoretical score before we check names to avoid
-		 * unnecessary strcmp() */
-		if (tk_name)
-			score += 20;
-		if (tk_term)
-			score += 10;
-
-		DBG(CONF, ul_debug("item '%s': score=%d "
-			"[cur: %d, name(%zu): %s, term(%zu): %s]",
-			d->d_name, score, cc->scores[type],
-			tk_namesz, tk_name,
-			tk_termsz, tk_term));
-
-
-		if (score < cc->scores[type])
-			continue;
-
-		/* filter out by names */
-		if (tk_namesz && (tk_namesz != namesz ||
-				 strncmp(tk_name, cc->utilname, namesz) != 0))
-			continue;
-
-		if (tk_termsz && (termsz == 0 || tk_termsz != termsz ||
-				  strncmp(tk_term, cc->termname, termsz) != 0))
-			continue;
-
-		DBG(CONF, ul_debug("setting '%s' from %d -to-> %d",
-					type == UL_COLORFILE_SCHEME ? "scheme" :
-					type == UL_COLORFILE_DISABLE ? "disable" :
-					type == UL_COLORFILE_ENABLE ? "enable" : "???",
-					cc->scores[type], score));
-		cc->scores[type] = score;
-		if (type == UL_COLORFILE_SCHEME)
-			strncpy(sfile, d->d_name, sizeof(sfile));
-	}
-
-	if (*sfile) {
-		sfile[sizeof(sfile) - 1] = '\0';
-		if (asprintf(&cc->sfile, "%s/%s", dirname, sfile) <= 0)
-			rc = -ENOMEM;
-	}
-
-	closedir(dir);
-	return rc;
-}
-
-/* atexit() wrapper */
-static void colors_deinit(void)
-{
-	colors_reset(&ul_colors);
-}
-
-/*
- * Returns path to $XDG_CONFIG_HOME/terminal-colors.d
- */
-static char *colors_get_homedir(char *buf, size_t bufsz)
-{
-	char *p = getenv("XDG_CONFIG_HOME");
-
-	if (p) {
-		snprintf(buf, bufsz, "%s/" _PATH_TERMCOLORS_DIRNAME, p);
-		return buf;
-	}
-
-	p = getenv("HOME");
-	if (p) {
-		snprintf(buf, bufsz, "%s/.config/" _PATH_TERMCOLORS_DIRNAME, p);
-		return buf;
-	}
-
-	return NULL;
-}
-
-/* canonicalize sequence */
-static int cn_sequence(const char *str, char **seq)
-{
-	char *in, *out;
-	int len;
-
-	if (!str)
-		return -EINVAL;
-
-	*seq = NULL;
-
-	/* convert logical names like "red" to the real sequence */
-	if (*str != '\\' && isalpha(*str)) {
-		const char *s = color_sequence_from_colorname(str);
-		*seq = strdup(s ? s : str);
-
-		return *seq ? 0 : -ENOMEM;
-	}
-
-	/* convert xx;yy sequences to "\033[xx;yy" */
-	if ((len = asprintf(seq, "\033[%sm", str)) < 1)
-		return -ENOMEM;
-
-	for (in = *seq, out = *seq; in && *in; in++) {
-		if (*in != '\\') {
-			*out++ = *in;
-			continue;
-		}
-		switch(*(in + 1)) {
-		case 'a':
-			*out++ = '\a';	/* Bell */
-			break;
-		case 'b':
-			*out++ = '\b';	/* Backspace */
-			break;
-		case 'e':
-			*out++ = '\033';	/* Escape */
-			break;
-		case 'f':
-			*out++ = '\f';	/* Form Feed */
-			break;
-		case 'n':
-			*out++ = '\n';	/* Newline */
-			break;
-		case 'r':
-			*out++ = '\r';	/* Carriage Return */
-			break;
-		case 't':
-			*out++ = '\t';	/* Tab */
-			break;
-		case 'v':
-			*out++ = '\v';	/* Vertical Tab */
-			break;
-		case '\\':
-			*out++ = '\\';	/* Backslash */
-			break;
-		case '_':
-			*out++ = ' ';	/* Space */
-			break;
-		case '#':
-			*out++ = '#';	/* Hash mark */
-			break;
-		case '?':
-			*out++ = '?';	/* Question mark */
-			break;
-		default:
-			*out++ = *in;
-			*out++ = *(in + 1);
-			break;
-		}
-		in++;
-	}
-
-	if (out) {
-		assert ((out - *seq) <= len);
-		*out = '\0';
-	}
-
-	return 0;
-}
-
-
-/*
- * Adds one color sequence to array with color scheme.
- * When returning success (0) this function takes ownership of
- * @seq and @name, which have to be allocated strings.
- */
-static int colors_add_scheme(struct ul_color_ctl *cc,
-			     char *name,
-			     char *seq0)
-{
-	struct ul_color_scheme *cs = NULL;
-	char *seq = NULL;
-	int rc;
-
-	if (!cc || !name || !*name || !seq0 || !*seq0)
-		return -EINVAL;
-
-	DBG(SCHEME, ul_debug("add '%s'", name));
-
-	rc = cn_sequence(seq0, &seq);
-	if (rc)
-		return rc;
-
-	rc = -ENOMEM;
-
-	/* convert logical name (e.g. "red") to real ESC code */
-	if (isalpha(*seq)) {
-		const char *s = color_sequence_from_colorname(seq);
-		char *p;
-
-		if (!s) {
-			DBG(SCHEME, ul_debug("unknown logical name: %s", seq));
-			rc = -EINVAL;
-			goto err;
-		}
-
-		p = strdup(s);
-		if (!p)
-			goto err;
-		free(seq);
-		seq = p;
-	}
-
-	/* enlarge the array */
-	if (cc->nschemes == cc->schemes_sz) {
-		void *tmp = realloc(cc->schemes, (cc->nschemes + 10)
-					* sizeof(struct ul_color_scheme));
-		if (!tmp)
-			goto err;
-		cc->schemes = tmp;
-		cc->schemes_sz = cc->nschemes + 10;
-	}
-
-	/* add a new item */
-	cs = &cc->schemes[cc->nschemes];
-	cs->seq = seq;
-	cs->name = strdup(name);
-	if (!cs->name)
-		goto err;
-
-	cc->nschemes++;
-	return 0;
-err:
-	if (cs) {
-		free(cs->seq);
-		free(cs->name);
-		cs->seq = cs->name = NULL;
-	} else
-		free(seq);
-	return rc;
-}
-
-/*
- * Deallocates all regards to color schemes
- */
-static void colors_free_schemes(struct ul_color_ctl *cc)
-{
-	size_t i;
-
-	DBG(SCHEME, ul_debug("free scheme"));
-
-	for (i = 0; i < cc->nschemes; i++) {
-		free(cc->schemes[i].name);
-		free(cc->schemes[i].seq);
-	}
-
-	free(cc->schemes);
-	cc->schemes = NULL;
-	cc->nschemes = 0;
-	cc->schemes_sz = 0;
-}
-
-/*
- * The scheme configuration has to be sorted for bsearch
- */
-static void colors_sort_schemes(struct ul_color_ctl *cc)
-{
-	if (!cc->nschemes)
-		return;
-
-	DBG(SCHEME, ul_debug("sort scheme"));
-
-	qsort(cc->schemes, cc->nschemes,
-	      sizeof(struct ul_color_scheme), cmp_scheme_name);
-}
-
-/*
- * Returns just one color scheme
- */
-static struct ul_color_scheme *colors_get_scheme(struct ul_color_ctl *cc,
-						 const char *name)
-{
-	struct ul_color_scheme key = { .name = (char *) name}, *res;
-
-	if (!cc || !name || !*name)
-		return NULL;
-
-	if (!cc->cs_configured) {
-		int rc = colors_read_schemes(cc);
-		if (rc)
-			return NULL;
-	}
-	if (!cc->nschemes)
-		return NULL;
-
-	DBG(SCHEME, ul_debug("search '%s'", name));
-
-	res = bsearch(&key, cc->schemes, cc->nschemes,
-				sizeof(struct ul_color_scheme),
-				cmp_scheme_name);
-
-	return res && res->seq ? res  : NULL;
-}
-
-/*
- * Parses filenames in terminal-colors.d
- */
-static int colors_read_configuration(struct ul_color_ctl *cc)
-{
-	int rc = -ENOENT;
-	char *dirname, buf[PATH_MAX];
-
-	cc->termname = getenv("TERM");
-
-	dirname = colors_get_homedir(buf, sizeof(buf));
-	if (dirname)
-		rc = colors_readdir(cc, dirname);		/* ~/.config */
-	if (rc == -EPERM || rc == -EACCES || rc == -ENOENT)
-		rc = colors_readdir(cc, _PATH_TERMCOLORS_DIR);	/* /etc */
-
-	cc->configured = 1;
-	return rc;
-}
-
-/*
- * Reads terminal-colors.d/ scheme file into array schemes
- */
-static int colors_read_schemes(struct ul_color_ctl *cc)
-{
-	int rc = 0;
-	FILE *f = NULL;
-	char buf[BUFSIZ],
-	     cn[129], seq[129];
-
-	if (!cc->configured)
-		rc = colors_read_configuration(cc);
-
-	cc->cs_configured = 1;
-
-	if (rc || !cc->sfile)
-		goto done;
-
-	DBG(SCHEME, ul_debug("reading file '%s'", cc->sfile));
-
-	f = fopen(cc->sfile, "r");
-	if (!f) {
-		rc = -errno;
-		goto done;
-	}
-
-	while (fgets(buf, sizeof(buf), f)) {
-		char *p = strchr(buf, '\n');
-
-		if (!p) {
-			if (feof(f))
-				p = strchr(buf, '\0');
-			else {
-				rc = -errno;
-				goto done;
-			}
-		}
-		*p = '\0';
-		p = (char *) skip_blank(buf);
-		if (*p == '\0' || *p == '#')
-			continue;
-
-		rc = sscanf(p, "%128[^ ] %128[^\n ]", cn, seq);
-		if (rc == 2 && *cn && *seq) {
-			rc = colors_add_scheme(cc, cn, seq);	/* set rc=0 on success */
-			if (rc)
-				goto done;
-		}
-	}
-	rc = 0;
-
-done:
-	if (f)
-		fclose(f);
-	colors_sort_schemes(cc);
-
-	return rc;
-}
-
-
-static void termcolors_init_debug(void)
-{
-	__UL_INIT_DEBUG_FROM_ENV(termcolors, TERMCOLORS_DEBUG_, 0, TERMINAL_COLORS_DEBUG);
-}
-
-static int colors_terminal_is_ready(void)
-{
-	int ncolors = -1;
-
-#if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW)
-	{
-		int ret;
-
-		if (setupterm(NULL, STDOUT_FILENO, &ret) == 0 && ret == 1)
-			ncolors = tigetnum("colors");
-	}
-#endif
-	if (1 < ncolors) {
-		DBG(CONF, ul_debug("terminal is ready (supports %d colors)", ncolors));
-		return 1;
-	}
-
-	DBG(CONF, ul_debug("terminal is NOT ready (no colors)"));
-	return 0;
-}
-
-/**
- * colors_init:
- * @mode: UL_COLORMODE_*
- * @name: util argv[0]
- *
- * Initialize private color control struct and initialize the colors
- * status. The color schemes are parsed on demand by colors_get_scheme().
- *
- * Returns: >0 on success.
- */
-int colors_init(int mode, const char *name)
-{
-	int ready = -1;
-	struct ul_color_ctl *cc = &ul_colors;
-
-	cc->utilname = name;
-
-	termcolors_init_debug();
-
-	if (mode != UL_COLORMODE_ALWAYS && !isatty(STDOUT_FILENO))
-		cc->mode = UL_COLORMODE_NEVER;
-	else
-		cc->mode = mode;
-
-	if (cc->mode == UL_COLORMODE_UNDEF
-	    && (ready = colors_terminal_is_ready())) {
-		int rc = colors_read_configuration(cc);
-		if (rc)
-			cc->mode = UL_COLORMODE_DEFAULT;
-		else {
-
-			/* evaluate scores */
-			if (cc->scores[UL_COLORFILE_DISABLE] >
-			    cc->scores[UL_COLORFILE_ENABLE])
-				cc->mode = UL_COLORMODE_NEVER;
-			else
-				cc->mode = UL_COLORMODE_DEFAULT;
-
-			atexit(colors_deinit);
-		}
-	}
-
-	switch (cc->mode) {
-	case UL_COLORMODE_AUTO:
-		cc->has_colors = ready == -1 ? colors_terminal_is_ready() : ready;
-		break;
-	case UL_COLORMODE_ALWAYS:
-		cc->has_colors = 1;
-		break;
-	case UL_COLORMODE_NEVER:
-	default:
-		cc->has_colors = 0;
-	}
-
-	ON_DBG(CONF, colors_debug(cc));
-
-	return cc->has_colors;
-}
-
-/*
- * Temporary disable colors (this setting is independent on terminal-colors.d/)
- */
-void colors_off(void)
-{
-	ul_colors.disabled = 1;
-}
-
-/*
- * Enable colors
- */
-void colors_on(void)
-{
-	ul_colors.disabled = 0;
-}
-
-/*
- * Is terminal-colors.d/ configured to use colors?
- */
-int colors_wanted(void)
-{
-	return ul_colors.has_colors;
-}
-
-/*
- * Returns mode
- */
-int colors_mode(void)
-{
-	return ul_colors.mode;
-}
-
-/*
- * Enable @seq color
- */
-void color_fenable(const char *seq, FILE *f)
-{
-	if (!ul_colors.disabled && ul_colors.has_colors && seq)
-		fputs(seq, f);
-}
-
-/*
- * Returns escape sequence by logical @name, if undefined then returns @dflt.
- */
-const char *color_scheme_get_sequence(const char *name, const char *dflt)
-{
-	struct ul_color_scheme *cs;
-
-	if (ul_colors.disabled || !ul_colors.has_colors)
-		return NULL;
-
-	cs = colors_get_scheme(&ul_colors, name);
-	return cs && cs->seq ? cs->seq : dflt;
-}
-
-/*
- * Enable color by logical @name, if undefined enable @dflt.
- */
-void color_scheme_fenable(const char *name, const char *dflt, FILE *f)
-{
-	const char *seq = color_scheme_get_sequence(name, dflt);
-
-	if (!seq)
-		return;
-	color_fenable(seq, f);
-}
-
-
-/*
- * Disable previously enabled color
- */
-void color_fdisable(FILE *f)
-{
-	if (!ul_colors.disabled && ul_colors.has_colors)
-		fputs(UL_COLOR_RESET, f);
-}
-
-/*
- * Parses @str to return UL_COLORMODE_*
- */
-int colormode_from_string(const char *str)
-{
-	size_t i;
-	static const char *modes[] = {
-		[UL_COLORMODE_AUTO]   = "auto",
-		[UL_COLORMODE_NEVER]  = "never",
-		[UL_COLORMODE_ALWAYS] = "always",
-		[UL_COLORMODE_UNDEF] = ""
-	};
-
-	if (!str || !*str)
-		return -EINVAL;
-
-	assert(ARRAY_SIZE(modes) == __UL_NCOLORMODES);
-
-	for (i = 0; i < ARRAY_SIZE(modes); i++) {
-		if (strcasecmp(str, modes[i]) == 0)
-			return i;
-	}
-
-	return -EINVAL;
-}
-
-/*
- * Parses @str and exit(EXIT_FAILURE) on error
- */
-int colormode_or_err(const char *str, const char *errmsg)
-{
-	const char *p = str && *str == '=' ? str + 1 : str;
-	int colormode;
-
-	colormode = colormode_from_string(p);
-	if (colormode < 0)
-		errx(EXIT_FAILURE, "%s: '%s'", errmsg, p);
-
-	return colormode;
-}
-
-#ifdef TEST_PROGRAM_COLORS
-# include <getopt.h>
-int main(int argc, char *argv[])
-{
-	static const struct option longopts[] = {
-		{ "mode",	required_argument, NULL, 'm' },
-		{ "color",	required_argument, NULL, 'c' },
-		{ "color-scheme", required_argument, NULL, 'C' },
-		{ "name",	required_argument, NULL, 'n' },
-		{ NULL, 0, NULL, 0 }
-	};
-	int c, mode = UL_COLORMODE_UNDEF;	/* default */
-	const char *color = "red", *name = NULL, *color_scheme = NULL;
-	const char *seq = NULL;
-
-	while ((c = getopt_long(argc, argv, "C:c:m:n:", longopts, NULL)) != -1) {
-		switch (c) {
-		case 'c':
-			color = optarg;
-			break;
-		case 'C':
-			color_scheme = optarg;
-			break;
-		case 'm':
-			mode = colormode_or_err(optarg, "unsupported color mode");
-			break;
-		case 'n':
-			name = optarg;
-			break;
-		default:
-			fprintf(stderr, "usage: %s [options]\n"
-			" -m, --mode <auto|never|always>  default is undefined\n"
-			" -c, --color <red|blue|...>      color for the test message\n"
-			" -C, --color-scheme <name>       color for the test message\n"
-			" -n, --name <utilname>           util name\n",
-			program_invocation_short_name);
-			return EXIT_FAILURE;
-		}
-	}
-
-	colors_init(mode, name ? name : program_invocation_short_name);
-
-	seq = color_sequence_from_colorname(color);
-
-	if (color_scheme)
-		color_scheme_enable(color_scheme, seq);
-	else
-		color_enable(seq);
-	printf("Hello World!");
-	color_disable();
-	fputc('\n', stdout);
-
-	return EXIT_SUCCESS;
-}
-#endif /* TEST_PROGRAM_COLORS */
-