Add xmppc version 0.1.0

Fixes #5900

packages/xmppc/Remove-dependency-on-strndupa.patch

@@ -0,0 +1,28 @@
+From b4e134b66dbb54f784f879fd4fb3d16afa9c8de3 Mon Sep 17 00:00:00 2001
+From: "j.r" <j.r@jugendhacker.de>
+Date: Mon, 15 Mar 2021 17:04:23 +0100
+Subject: [PATCH] Remove dependency on strndupa
+
+Actually only glibc seems to implement this
+---
+ src/mode/pgp.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/mode/pgp.c b/src/mode/pgp.c
+index 26ac252..9742035 100644
+--- a/src/mode/pgp.c
++++ b/src/mode/pgp.c
+@@ -175,7 +175,9 @@ char* _pgp_encrypt_message(xmppc_t *xmppc, char* recipient, char* message) {
+ }
+ 
+ static char* _pgp_remove_PGP_MESSAGE_comment(const char* message) {
+-  char* tmp = strndupa(message, strlen(message) - (strlen(PGP_END)+1));
++  char* tmp = alloca((strlen(message) - strlen(PGP_END)+1) + 1);
++  strncpy(tmp, message, (strlen(message) - strlen(PGP_END)+1));
++  tmp[(strlen(message) - strlen(PGP_END)+1)] = '\0';
+   tmp = tmp+((strlen(PGP_BEGIN) +1) * sizeof(char));
+   char* result = malloc(strlen(tmp)+1);
+   strcpy(result, tmp);
+-- 
+2.30.2
+

packages/xmppc/build.sh

@@ -0,0 +1,12 @@
+TERMUX_PKG_HOMEPAGE=https://codeberg.org/Anoxinon_e.V./xmppc
+TERMUX_PKG_DESCRIPTION="Command Line Interface Tool for XMPP"
+TERMUX_PKG_LICENSE="GPL-3.0"
+TERMUX_PKG_MAINTAINER="j.r <j.r@jugendhacker.de>"
+TERMUX_PKG_VERSION=0.1.0
+TERMUX_PKG_SRCURL=https://codeberg.org/Anoxinon_e.V./xmppc/archive/${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=98d68deb57924e5ed06613d8b275fb0bf98aab822fb590fe8d9894410a8544ee
+TERMUX_PKG_DEPENDS="libstrophe, glib, gpgme"
+
+termux_step_pre_configure() {
+	./bootstrap.sh
+}