mailutils: fix testsuite failure caused by unsupported weak hashes

pkgs/tools/networking/mailutils/default.nix

@@ -23,6 +23,7 @@
 , sasl
 , system-sendmail
 , libxcrypt
+, mkpasswd
 
 , pythonSupport ? true
 , guileSupport ? true
@@ -79,6 +80,9 @@ stdenv.mkDerivation rec {
       url = "https://lists.gnu.org/archive/html/bug-mailutils/2020-11/txtiNjqcNpqOk.txt";
       sha256 = "0ghzqb8qx2q8cffbvqzw19mivv7r5f16whplzhm7hdj0j2i6xf6s";
     })
+    # https://github.com/NixOS/nixpkgs/issues/223967
+    # https://lists.gnu.org/archive/html/bug-mailutils/2023-04/msg00000.html
+    ./don-t-use-descrypt-password-in-the-test-suite.patch
   ];
 
   enableParallelBuilding = true;
@@ -94,7 +98,7 @@ stdenv.mkDerivation rec {
   ] ++ lib.optional (!pythonSupport) "--without-python"
     ++ lib.optional (!guileSupport) "--without-guile";
 
-  nativeCheckInputs = [ dejagnu ];
+  nativeCheckInputs = [ dejagnu mkpasswd ];
   doCheck = !stdenv.isDarwin; # ERROR: All 46 tests were run, 46 failed unexpectedly.
   doInstallCheck = false; # fails
 

pkgs/tools/networking/mailutils/don-t-use-descrypt-password-in-the-test-suite.patch

@@ -0,0 +1,59 @@
+From 59a1abfa7b339bccfc228f38cc791cdacf4010d4 Mon Sep 17 00:00:00 2001
+From: Michal Sojka <michal.sojka@cvut.cz>
+Date: Sat, 1 Apr 2023 10:59:00 +0200
+Subject: [PATCH] Don't use descrypt password in the test suite
+
+The descrypt method is not considered strong and some
+distributions (like NixOS) start compiling libxcrypt without it [1].
+
+To start using different hash methods, it is not sufficient to replace
+the password hash in testsuite/etc/passwd.in, because differently
+hashed passwords contain '$' characters (e.g.
+$y$j9T$lP8UWS9GZ4zfeTVDpmtbr1$dVozXOvWQXLQyhWGX7YyW8TIQTg8EfQLUzYPp3WCWo9)
+and the test suite replaces '$'-starting strings with values of the
+corresponding variables. Since I've not found a way to escape dollars
+for TCL's subst function, we do not hardcode the passwd hash directly
+to the file, but generate it dynamically and replace it in the file
+via a variable.
+
+[1]: https://github.com/NixOS/nixpkgs/pull/220557
+---
+ pop3d/testsuite/lib/pop3d.exp | 1 +
+ testsuite/etc/passwd.in       | 2 +-
+ testsuite/lib/mailutils.exp   | 1 +
+ 3 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/pop3d/testsuite/lib/pop3d.exp b/pop3d/testsuite/lib/pop3d.exp
+index 930861d8a..3b67844d2 100644
+--- a/pop3d/testsuite/lib/pop3d.exp
++++ b/pop3d/testsuite/lib/pop3d.exp
+@@ -26,6 +26,7 @@ if ![mu_check_capability ENABLE_VIRTUAL_DOMAINS] {
+ }
+ 
+ set POP3D_ETC_DIR "$MU_DATA_DIR/etc"
++set MU_PASSWD_HASH [exec mkpasswd --method=yescrypt guessme]
+ mu_makespool "$MU_RC_DIR" "$POP3D_ETC_DIR"
+ mu_create_config pop3d
+ 
+diff --git a/testsuite/etc/passwd.in b/testsuite/etc/passwd.in
+index c4e471b09..b13a75238 100644
+--- a/testsuite/etc/passwd.in
++++ b/testsuite/etc/passwd.in
+@@ -1 +1 @@
+-user:abld/G2Q2Le2w:1000:1000:Test User:$MU_SPOOL_DIR:/bin/sh
++user:$MU_PASSWD_HASH:1000:1000:Test User:$MU_SPOOL_DIR:/bin/sh
+diff --git a/testsuite/lib/mailutils.exp b/testsuite/lib/mailutils.exp
+index e4d45c85b..725ccf259 100644
+--- a/testsuite/lib/mailutils.exp
++++ b/testsuite/lib/mailutils.exp
+@@ -39,6 +39,7 @@ proc mu_copy_file {src dst} {
+     global MU_FOLDER_DIR
+     global MU_RC_DIR 
+     global MU_DATA_DIR
++    global MU_PASSWD_HASH
+     
+     set input [open $src r]
+     set output [open $dst w]
+-- 
+2.39.2
+