Add kernel(7) --firmware option.

This reverts commit 0fef08bbc4.

disked/disked.c

@@ -2186,9 +2186,9 @@ static void on_mkpart(size_t argc, char** argv)
 		}
 		const char* mkfs_argv[] =
 		{
-			"mformat",
+			"mkfs.fat",
 			"-F", // TODO: Force FAT32 until FAT12/16 root dir writing is added.
-			"-i",
+			"32",
 			p->path,
 			NULL
 		};

fat/inode.cpp

@@ -459,12 +459,12 @@ Inode* Inode::Open(const char* elem, int flags, mode_t mode)
 			memset(block->block_data, 0, filesystem->bytes_per_sector);
 			struct fat_dirent* dirent = (struct fat_dirent*) block->block_data;
 			// TODO: Mirror modified times in here.
-			memcpy(dirent->name, ".", 1);
+			memcpy(dirent->name, ".          ", 11);
 			dirent->attributes = attributes;
 			dirent->cluster_high = htole16(inode_id >> 16);
 			dirent->cluster_low = htole16(inode_id & 0xFFFF);
 			dirent++;
-			memcpy(dirent->name, "..", 2);
+			memcpy(dirent->name, "..         ", 11);
 			dirent->attributes = FAT_ATTRIBUTE_DIRECTORY;
 			if ( this->inode_id == filesystem->root_inode_id )
 			{

init/init.c

@@ -3101,7 +3101,9 @@ static bool fsck(struct filesystem* fs)
 	if ( pid == 0 )
 	{
 		uninstall_signal_handler();
-		execlp(fs->fsck, fs->fsck, "-fp", "--", bdev_path, (const char*) NULL);
+		// TODO: Move to libmount abstraction.
+		const char* options = !strcmp(fs->fstype_name, "ext2") ? "-fp" : "-p";
+		execlp(fs->fsck, fs->fsck, options, "--", bdev_path, (const char*) NULL);
 		warning("%s: Failed to load filesystem checker: %s: %m",
 		        bdev_path, fs->fsck);
 		_exit(127);

kernel/textterminal.cpp

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
+ * Copyright (c) 2023 Juhani 'nortti' Krekelä.
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -659,8 +660,42 @@ void TextTerminal::RunAnsiCommand(TextBuffer* textbuf, char c)
 		uint32_t fillbg = attr & ATTR_INVERSE ? fgcolor : bgcolor;
 		textbuf->Fill(from, to, TextChar(' ', vgacolor, 0, fillfg, fillbg));
 	} break;
-	// TODO: CSI Ps M  Delete Ps Line(s) (default = 1) (DL).
-	//       (delete those lines and move the rest of the lines upwards).
+	case 'L': // Append lines before current line.
+	{
+		column = 0;
+		unsigned lines = 0 < ansiusedparams ? ansiparams[0] : 1;
+		if ( height < line + lines )
+			lines = height - line;
+		TextPos from(0, line);
+		TextPos move_to(0, line + lines);
+		unsigned move_lines = height - line - lines;
+		textbuf->Move(move_to, from, move_lines * width);
+		if ( 0 < lines )
+		{
+			TextPos fill_to(width - 1, line + lines - 1);
+			uint32_t fill_fg = attr & ATTR_INVERSE ? bgcolor : fgcolor;
+			uint32_t fill_bg = attr & ATTR_INVERSE ? fgcolor : bgcolor;
+			TextChar fill_char(' ', vgacolor, 0, fill_fg, fill_bg);
+			textbuf->Fill(from, fill_to, fill_char);
+		}
+	} break;
+	case 'M': // Delete lines starting from beginning of current line.
+	{
+		column = 0;
+		unsigned lines = 0 < ansiusedparams ? ansiparams[0] : 1;
+		if ( height < line + lines )
+			lines = height - line;
+		TextPos move_from(0, line + lines);
+		TextPos move_to(0, line);
+		unsigned move_lines = height - line - lines;
+		textbuf->Move(move_to, move_from, move_lines * width);
+		TextPos fill_from(0, height - lines);
+		TextPos fill_to(width - 1, height - 1);
+		uint32_t fill_fg = attr & ATTR_INVERSE ? bgcolor : fgcolor;
+		uint32_t fill_bg = attr & ATTR_INVERSE ? fgcolor : bgcolor;
+		TextChar fill_char(' ', vgacolor, 0, fill_fg, fill_bg);
+		textbuf->Fill(fill_from, fill_to, fill_char);
+	} break;
 	// TODO: CSI Ps P  Delete Ps Character(s) (default = 1) (DCH).
 	//       (delete those characters and move the rest of the line leftward).
 	case 'S': // Scroll a line up and place a new line at the buttom.

libmount/fat.c

@@ -43,10 +43,8 @@ static bool fat_probe(struct blockdevice* bdev,
 	(void) amount;
 	// TODO: Relax restriction that this must be a partition? At least for non-EFI.
 	struct partition* p = bdev->p;
-	if ( !p )
-		return false;
 	// TODO: Test for a space padded FAT32 at 0x52 + 8 bytes.
-	if ( p->table_type == PARTITION_TABLE_TYPE_GPT )
+	if ( p && p->table_type == PARTITION_TABLE_TYPE_GPT )
 	{
 		unsigned char bdp_uuid[16];
 		uuid_from_string(bdp_uuid, BDP_GPT_TYPE_UUID);
@@ -56,7 +54,7 @@ static bool fat_probe(struct blockdevice* bdev,
 		return memcmp(p->gpt_type_guid, bdp_uuid, 16) == 0 ||
 		       memcmp(p->gpt_type_guid, esp_uuid, 16) == 0;
 	}
-	if ( p->table_type == PARTITION_TABLE_TYPE_MBR )
+	else if ( p && p->table_type == PARTITION_TABLE_TYPE_MBR )
 		return p->mbr_system_id == 0x01 ||
 		       p->mbr_system_id == 0x04 ||
 		       p->mbr_system_id == 0x06 ||
@@ -67,6 +65,20 @@ static bool fat_probe(struct blockdevice* bdev,
 	return false;
 }
 
+static bool fat_is_esp(struct blockdevice* bdev)
+{
+	struct partition* p = bdev->p;
+	if ( p->table_type == PARTITION_TABLE_TYPE_GPT )
+	{
+		unsigned char esp_uuid[16];
+		uuid_from_string(esp_uuid, ESP_GPT_TYPE_UUID);
+		return memcmp(p->gpt_type_guid, esp_uuid, 16) == 0;
+	}
+	else if ( p->table_type == PARTITION_TABLE_TYPE_MBR )
+		return p->mbr_system_id == 0xEF;
+	return false;
+}
+
 static void fat_release(struct filesystem* fs)
 {
 	if ( !fs )
@@ -87,9 +99,8 @@ static enum filesystem_error fat_inspect(struct filesystem** fs_ptr,
 	unsigned char vbr[512];
 	if ( blockdevice_preadall(bdev, vbr, sizeof(vbr), 0) != sizeof(vbr) )
 		return fat_release(fs), FILESYSTEM_ERROR_ERRNO;
-	// TODO: Report efi instead if ESP.
-	fs->fstype_name = "fat";
-	// TODO: Port a fat fsck.
+	fs->fstype_name = fat_is_esp(fs->bdev) ? "efi": "fat";
+	fs->fsck = "fsck.fat";
 	fs->driver = "fatfs";
 	fs->flags |= FILESYSTEM_FLAG_UUID;
 	// Use the serial number + label as the UUID.

ports/dosfstools/dosfstools.patch

@@ -0,0 +1,43 @@
+diff -Paur --no-dereference -- dosfstools.upstream/src/blkdev/blkdev.c dosfstools/src/blkdev/blkdev.c
+--- dosfstools.upstream/src/blkdev/blkdev.c
++++ dosfstools/src/blkdev/blkdev.c
+@@ -7,7 +7,6 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/ioctl.h>
+-#include <sys/sysmacros.h>
+ #include <unistd.h>
+ #include <stdint.h>
+ #include <stdio.h>
+diff -Paur --no-dereference -- dosfstools.upstream/src/common.c dosfstools/src/common.c
+--- dosfstools.upstream/src/common.c
++++ dosfstools/src/common.c
+@@ -297,16 +297,7 @@
+ 
+ uint32_t generate_volume_id(void)
+ {
+-    struct timeval now;
+-
+-    if (gettimeofday(&now, NULL) != 0 || now.tv_sec == (time_t)-1 || now.tv_sec < 0) {
+-        srand(getpid());
+-        /* rand() returns int from [0,RAND_MAX], therefore only 31 bits */
+-        return (((uint32_t)(rand() & 0xFFFF)) << 16) | ((uint32_t)(rand() & 0xFFFF));
+-    }
+-
+-    /* volume ID = current time, fudged for more uniqueness */
+-    return ((uint32_t)now.tv_sec << 20) | (uint32_t)now.tv_usec;
++	return arc4random();
+ }
+ 
+ /*
+diff -Paur --no-dereference -- dosfstools.upstream/src/device_info.c dosfstools/src/device_info.c
+--- dosfstools.upstream/src/device_info.c
++++ dosfstools/src/device_info.c
+@@ -24,7 +24,6 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/ioctl.h>
+-#include <sys/sysmacros.h>
+ 
+ #ifdef HAVE_LINUX_LOOP_H
+ #include <linux/loop.h>

ports/dosfstools/dosfstools.port

@@ -0,0 +1,12 @@
+NAME=dosfstools
+BUILD_LIBRARIES=libiconv?
+VERSION=4.2
+DISTNAME=$NAME-$VERSION
+COMPRESSION=tar.gz
+ARCHIVE=$DISTNAME.$COMPRESSION
+SHA256SUM=64926eebf90092dca21b14259a5301b7b98e7b1943e8a201c7d726084809b527
+UPSTREAM_SITE=https://github.com/dosfstools/dosfstools/releases/download/v$VERSION
+UPSTREAM_ARCHIVE=$ARCHIVE
+LICENSE=GPL-3.0-or-later
+BUILD_SYSTEM=configure
+DEVELOPMENT=true

ports/irssi/irssi.patch

@@ -0,0 +1,152 @@
+diff -Paur --no-dereference -- irssi.upstream/Makefile.in irssi/Makefile.in
+--- irssi.upstream/Makefile.in
++++ irssi/Makefile.in
+@@ -941,7 +941,8 @@
+ 
+ info-am:
+ 
+-install-data-am: install-confDATA install-pkgconfigDATA \
++# PATCH: Don't install /etc/irssi.conf. Same configuration is built-in.
++install-data-am: install-pkgconfigDATA \
+ 	install-pkgincludeHEADERS
+ 
+ install-dvi: install-dvi-recursive
+diff -Paur --no-dereference -- irssi.upstream/src/core/log.c irssi/src/core/log.c
+--- irssi.upstream/src/core/log.c
++++ irssi/src/core/log.c
+@@ -101,7 +101,10 @@
+ int log_start_logging(LOG_REC *log)
+ {
+ 	char *dir;
++/* PATCH: Sortix doesn't implement flock */
++#ifndef __sortix__
+ 	struct flock lock;
++#endif
+ 
+ 	g_return_val_if_fail(log != NULL, FALSE);
+ 
+@@ -139,6 +142,8 @@
+ 		log->failed = TRUE;
+ 		return FALSE;
+ 	}
++/* PATCH: Sortix doesn't implement flock */
++#ifndef __sortix__
+         memset(&lock, 0, sizeof(lock));
+ 	lock.l_type = F_WRLCK;
+ 	if (fcntl(log->handle, F_SETLK, &lock) == -1 && errno == EACCES) {
+@@ -148,6 +153,7 @@
+ 		log->failed = TRUE;
+ 		return FALSE;
+ 	}
++#endif
+ 	lseek(log->handle, 0, SEEK_END);
+ 
+ 	log->opened = log->last = time(NULL);
+@@ -162,7 +168,10 @@
+ 
+ void log_stop_logging(LOG_REC *log)
+ {
++/* PATCH: Sortix doesn't implement flock */
++#ifndef __sortix__
+ 	struct flock lock;
++#endif
+ 
+ 	g_return_if_fail(log != NULL);
+ 
+@@ -175,9 +184,12 @@
+ 			    settings_get_str("log_close_string"),
+ 			    "\n", time(NULL));
+ 
++/* PATCH: Sortix doesn't implement flock */
++#ifndef __sortix__
+         memset(&lock, 0, sizeof(lock));
+ 	lock.l_type = F_UNLCK;
+ 	fcntl(log->handle, F_SETLK, &lock);
++#endif
+ 
+ 	write_buffer_flush();
+ 	close(log->handle);
+diff -Paur --no-dereference -- irssi.upstream/src/core/net-disconnect.c irssi/src/core/net-disconnect.c
+--- irssi.upstream/src/core/net-disconnect.c
++++ irssi/src/core/net-disconnect.c
+@@ -18,6 +18,8 @@
+     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+ 
++#include <sys/select.h>
++
+ #include "module.h"
+ #include <irssi/src/core/network.h>
+ 
+diff -Paur --no-dereference -- irssi.upstream/src/core/network.c irssi/src/core/network.c
+--- irssi.upstream/src/core/network.c
++++ irssi/src/core/network.c
+@@ -501,16 +501,8 @@
+ 	} else {
+ 		/* IPv4 */
+ 		ip->family = AF_INET;
+-#ifdef HAVE_INET_ATON
+-		if (inet_aton(host, &ip->ip.s_addr) == 0)
++		if (inet_pton(AF_INET, host, &ip->ip) == 0)
+ 			return -1;
+-#else
+-		addr = inet_addr(host);
+-		if (addr == INADDR_NONE)
+-			return -1;
+-
+-		memcpy(&ip->ip, &addr, 4);
+-#endif
+ 	}
+ 
+ 	return 0;
+diff -Paur --no-dereference -- irssi.upstream/src/core/network.h irssi/src/core/network.h
+--- irssi.upstream/src/core/network.h
++++ irssi/src/core/network.h
+@@ -11,6 +11,11 @@
+ #  include <netdb.h>
+ #  include <arpa/inet.h>
+ 
++/* PATCH: Sortix netdb.h does not define HOST_NOT_FOUND */
++#ifndef HOST_NOT_FOUND
++#define HOST_NOT_FOUND 1
++#endif
++
+ #ifndef AF_INET6
+ #  ifdef PF_INET6
+ #    define AF_INET6 PF_INET6
+diff -Paur --no-dereference -- irssi.upstream/src/core/refstrings.c irssi/src/core/refstrings.c
+--- irssi.upstream/src/core/refstrings.c
++++ irssi/src/core/refstrings.c
+@@ -122,7 +122,7 @@
+ 		mem += sizeof(char) * (strlen(key) + 1) + 2 * sizeof(void *);
+ 	}
+ 
+-	return g_strdup_printf("Shared strings: %ld, %dkB of data", count,
++	return g_strdup_printf("Shared strings: %zu, %dkB of data", count,
+ 	          (int) (mem / 1024));
+ }
+ 
+diff -Paur --no-dereference -- irssi.upstream/src/fe-common/core/fe-exec.c irssi/src/fe-common/core/fe-exec.c
+--- irssi.upstream/src/fe-common/core/fe-exec.c
++++ irssi/src/fe-common/core/fe-exec.c
+@@ -327,7 +327,7 @@
+ 	signal(SIGINT, SIG_IGN);
+ 	signal(SIGQUIT, SIG_DFL);
+ 
+-	putenv("TERM=tty");
++	setenv("TERM", "tty", 1);
+ 
+ 	/* set stdin, stdout and stderr */
+         dup2(in[0], STDIN_FILENO);
+diff -Paur --no-dereference -- irssi.upstream/src/irc/core/irc.c irssi/src/irc/core/irc.c
+--- irssi.upstream/src/irc/core/irc.c
++++ irssi/src/irc/core/irc.c
+@@ -90,7 +90,7 @@
+ 			end = tmp;
+ 
+ 			if (tmp - cmd > MAX_IRC_USER_TAGS_LEN) {
+-				g_warning("irc_send_cmd_full(); tags too long(%ld)", tmp - cmd);
++				g_warning("irc_send_cmd_full(); tags too long(%td)", tmp - cmd);
+ 				while (tmp - cmd > MAX_IRC_USER_TAGS_LEN && cmd != tmp - 1) tmp--;
+ 				while (*tmp != ',' && cmd != tmp - 1) tmp--;
+ 			}

ports/irssi/irssi.port

@@ -0,0 +1,13 @@
+NAME=irssi
+BUILD_LIBRARIES='libcurses libglib libssl'
+VERSION=1.4.5
+DISTNAME=$NAME-$VERSION
+COMPRESSION=tar.xz
+ARCHIVE=$DISTNAME.$COMPRESSION
+SHA256SUM=72a951cb0ad622785a8962801f005a3a412736c7e7e3ce152f176287c52fe062
+UPSTREAM_SITE=https://codeberg.org/irssi/irssi/releases/download/$VERSION
+UPSTREAM_ARCHIVE=$ARCHIVE
+RELEASE_SEARCH_PAGE=https://codeberg.org/irssi/irssi/releases
+BUILD_SYSTEM=configure
+MAKE_VARS=V=1
+LICENSE=GPL-2.0-or-later

ports/irssi/irssi.rmpatch

@@ -0,0 +1 @@
+rm -rf -- 'irssi-config.h'

ports/libcurses/libcurses.patch

@@ -293,7 +293,7 @@ diff -Paur --no-dereference -- libcurses.upstream/netbsd_sys/cdefs.h libcurses/n
 diff -Paur --no-dereference -- libcurses.upstream/terminfo/sortix.terminfo libcurses/terminfo/sortix.terminfo
 --- libcurses.upstream/terminfo/sortix.terminfo
 +++ libcurses/terminfo/sortix.terminfo
-@@ -0,0 +1,230 @@
+@@ -0,0 +1,231 @@
 +# TODO: Decode setab and setaf and see if they are what I want.
 +# TODO: Implement BEL \a and add bel=^G,
 +# TODO: Add blink support and add blink=\E[5m,
@@ -302,12 +302,9 @@ diff -Paur --no-dereference -- libcurses.upstream/terminfo/sortix.terminfo libcu
 +# TODO: Support dch=\E[%p1%dP,
 +# TODO: dch1=\E[P,
 +# TODO: Add faint support and add dim=\E[2m,
-+# TODO: dl1=\E[M,
 +# TODO: ech=\E[%p1%dX,
 +# TODO: hts=\EH,
 +# TODO: ich=\E[%p1%d@,
-+# TODO: il=\E[%p1%dL,
-+# TODO: il1=\E[L,
 +# TODO: invis=\E[8m,
 +# TODO: Some modifiers for the function keys are missing, like control + alt +
 +#       shift + f12, kfxx should probably go up to 96. On the other hand,
@@ -346,12 +343,16 @@ diff -Paur --no-dereference -- libcurses.upstream/terminfo/sortix.terminfo libcu
 +	cup=\E[%i%p1%d;%p2%dH,
 +	cuu1=\E[A,
 +	cuu=\E[%p1%dA,
++	dl1=\E[M,
++	dl=\E[%p1%dM,
 +	ed=\E[J,
 +	el1=\E[1K,
 +	el=\E[K,
 +	home=\E[H,
 +	hpa=\E[%i%p1%dG,
 +	ht=^I,
++	il1=\E[L,
++	il=\E[%p1%dL,
 +	ind=^J,
 +	indn=\E[%p1%dS,
 +	nel=^J,

share/man/man5/port.5

@@ -178,6 +178,18 @@ number matched in the first subexpression.
 .Sy ARCHIVE
 and
 .Sy VERSION_REGEX )
+.It Sy EDITION
+An increasing number used to distinguish this edition of the package from any previous packages by
+the same name.
+A new pacckage with the same name and a different edition will considered a different package.
+Upgrades will uninstall the old package and will not upgrade to the new edition as if the package
+has stopped existing.
+The
+.Sy RENAMES
+variable can be used in combination with
+.Sy EDITION
+to rename and split packages.
+The default edition is 1.
 .It Sy LICENSE
 Primary license identifier for the installed files from the
 .Lk https://spdx.org/licenses/ "SPDX License List" .
@@ -253,6 +265,19 @@ Locate new upstream versions of the port by searching
 .Sy RELEASE_SEARCH_PAGE
 using this regular expression matching the new version number in the first
 subexpression.
+.It Sy RENAMES
+Comma-separated list of package renames.
+Each rename is expressed as the name of a package followed by a
+.Sq "@"
+and its
+.Sy EDITION ,
+followed by a
+.Sq ":"
+and then a potentially-empty space separated list of replacement packages, each
+taking the form of a replacement package name followed by
+.Sq "@"
+and then the replacement package
+.Sy EDITION .
 .It Sy RUNTIME_DEPS
 Space delimited list of libraries (ports) needed at run time.
 Unsupported.

share/man/man7/following-development.7

@@ -69,6 +69,25 @@ releasing Sortix x.y, foo." to allow the maintainer to easily
 .Xr grep 1
 for it after a release.
 .Sh CHANGES
+.Ss Add tix-repository(8)
+The new
+.Xr tix-repository 8
+program is used to generate repository metadata in releases.
+The new
+.Sy EDITION
+and
+.Sy RENAMES
+variables in
+.Xr port 5
+are used to rename and split packages and requires a new
+.Xr tix-build 8 .
+.Pp
+Tix must be upgraded:
+.Bd -literal
+    cd /src/tix &&
+    make clean &&
+    make install
+.Ed
 .Ss Support system upgrades and configuration in GRUB
 The GRUB configuration now implements the
 .Pa /etc

terminal/terminal.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2017, 2022 Jonas 'Sortie' Termansen.
+ * Copyright (c) 2023 Juhani 'nortti' Krekelä.
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -211,6 +212,21 @@ static void fill(size_t from_x, size_t from_y, size_t to_x, size_t to_y,
 		scrollback[i] = with;
 }
 
+static void move(size_t to_x, size_t to_y, size_t from_x, size_t from_y,
+                 size_t num_chars)
+{
+	// TODO: Assert within bounds?
+	size_t from = from_y * columns + from_x;
+	size_t to = to_y * columns + to_x;
+	if ( to < from )
+		for ( size_t i = 0; i < num_chars; i++ )
+			scrollback[to + i] = scrollback[from + i];
+	else if ( from < to )
+		for ( size_t i = 0; i < num_chars; i++ )
+			scrollback[to + num_chars - 1 - i] =
+				scrollback[from + num_chars - 1 - i];
+}
+
 static void scroll(ssize_t offsigned, struct entry with)
 {
 	if ( 0 < offsigned )
@@ -396,8 +412,37 @@ static void run_ansi_command(char c)
 		with.wc = 0;
 		fill(from_x, from_y, to_x, to_y, with);
 	} break;
-	// TODO: CSI Ps M  Delete Ps Line(s) (default = 1) (DL).
-	//       (delete those lines and move the rest of the lines upwards).
+	case 'L': // Append lines before current line.
+	{
+		column = 0;
+		unsigned lines = 0 < ansiusedparams ? ansiparams[0] : 1;
+		if ( rows < row + lines )
+			lines = rows - row;
+		unsigned move_lines = rows - row - lines;
+		move(0, row + lines, 0, row, move_lines * columns);
+		struct entry with;
+		with.attr = 0;
+		with.fgcolor = attr & ATTR_INVERSE ? current_bgcolor : current_fgcolor;
+		with.bgcolor = attr & ATTR_INVERSE ? current_fgcolor : current_bgcolor;
+		with.wc = 0;
+		if ( 0 < lines )
+			fill(0, row, columns - 1, row + lines - 1, with);
+	} break;
+	case 'M': // Delete lines starting from beginning of current line.
+	{
+		column = 0;
+		unsigned lines = 0 < ansiusedparams ? ansiparams[0] : 1;
+		if ( rows < row + lines )
+			lines = rows - row;
+		unsigned move_lines = rows - row - lines;
+		move(0, row, 0, row + lines, move_lines * columns);
+		struct entry with;
+		with.attr = 0;
+		with.fgcolor = attr & ATTR_INVERSE ? current_bgcolor : current_fgcolor;
+		with.bgcolor = attr & ATTR_INVERSE ? current_fgcolor : current_bgcolor;
+		with.wc = 0;
+		fill(0, rows - lines, columns - 1, rows - 1, with);
+	} break;
 	// TODO: CSI Ps P  Delete Ps Character(s) (default = 1) (DCH).
 	//       (delete those characters and move the rest of the line leftward).
 	case 'S': // Scroll a line up and place a new line at the buttom.