fix(sshd): prefer Termux patched native sshd binary over Nix glibc sshd on Android

Author: pedrobrantes

machines/aarch64/android/common.nix

@@ -27,7 +27,11 @@
     text = ''
       #!/bin/sh
       if ! pgrep -x "sshd" > /dev/null; then
-        ${pkgs.openssh}/bin/sshd -f ${config.home.homeDirectory}/.ssh/sshd_config
+        SSHD_BIN="/data/data/com.termux/files/usr/bin/sshd"
+        if [ ! -x "$SSHD_BIN" ]; then
+          SSHD_BIN="${pkgs.openssh}/bin/sshd"
+        fi
+        "$SSHD_BIN" -f ${config.home.homeDirectory}/.ssh/sshd_config
       fi
     '';
     executable = true;

machines/aarch64/android/smartphone/default.nix

@@ -27,14 +27,22 @@ in
   programs.zsh.initExtra = ''
     export PROMPT="%F{yellow}%n%f@%F{green}${hostName}%f:%F{blue}%~%f%# "
     if ! pgrep -x "sshd" > /dev/null; then
-      ${pkgs.openssh}/bin/sshd -f ${config.home.homeDirectory}/.ssh/sshd_config
+      SSHD_BIN="/data/data/com.termux/files/usr/bin/sshd"
+      if [ ! -x "$SSHD_BIN" ]; then
+        SSHD_BIN="${pkgs.openssh}/bin/sshd"
+      fi
+      "$SSHD_BIN" -f ${config.home.homeDirectory}/.ssh/sshd_config
     fi
   '';
 
   programs.bash.initExtra = ''
     export PS1="\[\033[01;33m\]\u\[\033[00m\]@\[\033[01;32m\]${hostName}\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ "
     if ! pgrep -x "sshd" > /dev/null; then
-      ${pkgs.openssh}/bin/sshd -f ${config.home.homeDirectory}/.ssh/sshd_config
+      SSHD_BIN="/data/data/com.termux/files/usr/bin/sshd"
+      if [ ! -x "$SSHD_BIN" ]; then
+        SSHD_BIN="${pkgs.openssh}/bin/sshd"
+      fi
+      "$SSHD_BIN" -f ${config.home.homeDirectory}/.ssh/sshd_config
     fi
   '';
 }

machines/aarch64/android/tablet/default.nix

@@ -27,14 +27,22 @@ in
   programs.zsh.initExtra = ''
     export PROMPT="%F{yellow}%n%f@%F{green}${hostName}%f:%F{blue}%~%f%# "
     if ! pgrep -x "sshd" > /dev/null; then
-      ${pkgs.openssh}/bin/sshd -f ${config.home.homeDirectory}/.ssh/sshd_config
+      SSHD_BIN="/data/data/com.termux/files/usr/bin/sshd"
+      if [ ! -x "$SSHD_BIN" ]; then
+        SSHD_BIN="${pkgs.openssh}/bin/sshd"
+      fi
+      "$SSHD_BIN" -f ${config.home.homeDirectory}/.ssh/sshd_config
     fi
   '';
 
   programs.bash.initExtra = ''
     export PS1="\[\033[01;33m\]\u\[\033[00m\]@\[\033[01;32m\]${hostName}\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ "
     if ! pgrep -x "sshd" > /dev/null; then
-      ${pkgs.openssh}/bin/sshd -f ${config.home.homeDirectory}/.ssh/sshd_config
+      SSHD_BIN="/data/data/com.termux/files/usr/bin/sshd"
+      if [ ! -x "$SSHD_BIN" ]; then
+        SSHD_BIN="${pkgs.openssh}/bin/sshd"
+      fi
+      "$SSHD_BIN" -f ${config.home.homeDirectory}/.ssh/sshd_config
     fi
   '';
 }