Ports: Add lowdown 1.0.2

Author: https://github.com/emilytrau
Commit: https://github.com/SerenityOS/serenity/commit/675cf43937
Pull-request: https://github.com/SerenityOS/serenity/pull/19292
Reviewed-by: https://github.com/gmta ✅
Reviewed-by: https://github.com/linusg

Ports/AvailablePorts.md

@@ -162,6 +162,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`links`](links/)                                   | Links web browser                                               | 2.26                     | http://links.twibright.com/                                                    |
 | [`lite-xl`](lite-xl/)                               | Lite-XL                                                         | 2.1.0                    | https://lite-xl.com/                                                           |
 | [`llvm`](llvm/)                                     | LLVM                                                            | 15.0.3                   | https://llvm.org/                                                              |
+| [`lowdown`](lowdown/)                               | lowdown                                                         | 1.0.2                    | https://kristaps.bsd.lv/lowdown/                                               |
 | [`lrzip`](lrzip/)                                   | lrzip                                                           | 0.651                    | https://github.com/ckolivas/lrzip                                              |
 | [`lua`](lua/)                                       | Lua                                                             | 5.4.4                    | https://www.lua.org/                                                           |
 | [`luajit`](luajit/)                                 | LuaJIT                                                          | 2.1.0-beta3              | https://luajit.org/luajit.html                                                 |

Ports/lowdown/package.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+
+port='lowdown'
+version='1.0.2'
+workdir="lowdown-VERSION_${version//./_}"
+files="https://github.com/kristapsdz/lowdown/archive/refs/tags/VERSION_${version//./_}.tar.gz lowdown-${version}.tar.gz 049b7883874f8a8e528dc7c4ed7b27cf7ceeb9ecf8fe71c3a8d51d574fddf84b"
+useconfigure='true'
+auth_type='sha256'
+
+configure() {
+    run ./configure
+}

Ports/lowdown/patches/0001-Exclude-arpa-nameser.h-as-it-does-not-exist-on-Seren.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Emily Trau <emily@downunderctf.com>
+Date: Tue, 6 Jun 2023 14:20:15 -0700
+Subject: [PATCH 1/2] Exclude arpa/nameser.h as it does not exist on Serenity
+
+---
+ compats.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/compats.c b/compats.c
+index 92d3b71..5d6f31a 100644
+--- a/compats.c
++++ b/compats.c
+@@ -215,7 +215,6 @@ warnx(const char *fmt, ...)
+ #include <sys/socket.h>
+ #include <netinet/in.h>
+ #include <arpa/inet.h>
+-#include <arpa/nameser.h>
+ 
+ #include <ctype.h>
+ #include <resolv.h>
+-- 
+2.37.2
+

Ports/lowdown/patches/0002-Don-t-use-getprogname.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Emily Trau <emily@downunderctf.com>
+Date: Tue, 6 Jun 2023 14:21:50 -0700
+Subject: [PATCH 2/2] Don't use `getprogname()`
+
+---
+ main.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/main.c b/main.c
+index 1d192be..6867fe4 100644
+--- a/main.c
++++ b/main.c
+@@ -384,7 +384,9 @@ main(int argc, char *argv[])
+ 		LOWDOWN_LATEX_NUMBERED |
+ 		LOWDOWN_SMARTY;
+ 
+-	if (strcasecmp(getprogname(), "lowdown-diff") == 0) 
++	char progname[BUFSIZ];
++	get_process_name(progname, sizeof(progname));
++	if (strcasecmp(progname, "lowdown-diff") == 0) 
+ 		diff = 1;
+ 
+ 	while ((c = getopt_long(argc, argv, 
+-- 
+2.37.2
+

Ports/lowdown/patches/ReadMe.md

@@ -0,0 +1,11 @@
+# Patches for llvm on SerenityOS
+
+## `0001-Exclude-arpa-nameser.h-as-it-does-not-exist-on-Seren.patch`
+
+Exclude arpa/nameser.h as it does not exist on Serenity
+
+
+## `0002-Don-t-use-getprogname.patch`
+
+Don't use `getprogname()` as it is not currently supported in Serenity
+

Userland/Libraries/LibC/paths.h

@@ -11,3 +11,6 @@
 
 // Deprecated definition for dosfstools port.
 #define _PATH_MOUNTED "/etc/mtab"
+
+// Default value used for lowdown port.
+#define _PATH_TTY "/dev/tty"