File 0002-auth-pam-Immediately-report-instructions-to-clients-and-fix-handling-in-ssh-client.patch of Package openssh

From 91ef15e8ed01a7e16d96ba6cb9ed51965dca9641 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
Date: Mon, 16 Oct 2023 21:15:45 +0200
Subject: [PATCH 2/6] auth-pam: Add an enum to define the PAM done status

Makes things more readable and easier to extend
---
 auth-pam.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/auth-pam.c b/auth-pam.c
index 86137a1acdb..21291631011 100644
--- a/auth-pam.c
+++ b/auth-pam.c
@@ -136,11 +136,16 @@ typedef pid_t sp_pthread_t;
 #define pthread_join	fake_pthread_join
 #endif
 
+typedef int SshPamDone;
+#define SshPamError -1
+#define SshPamNone 0
+#define SshPamAuthenticated 1
+
 struct pam_ctxt {
 	sp_pthread_t	 pam_thread;
 	int		 pam_psock;
 	int		 pam_csock;
-	int		 pam_done;
+	SshPamDone	 pam_done;
 };
 
 static void sshpam_free_ctx(void *);
@@ -904,7 +909,7 @@ sshpam_query(void *ctx, char **name, char **info,
 				**prompts = NULL;
 				*num = 0;
 				**echo_on = 0;
-				ctxt->pam_done = -1;
+				ctxt->pam_done = SshPamError;
 				free(msg);
 				sshbuf_free(buffer);
 				return 0;
@@ -931,7 +936,7 @@ sshpam_query(void *ctx, char **name, char **info,
 				import_environments(buffer);
 				*num = 0;
 				**echo_on = 0;
-				ctxt->pam_done = 1;
+				ctxt->pam_done = SshPamAuthenticated;
 				free(msg);
 				sshbuf_free(buffer);
 				return (0);
@@ -944,7 +949,7 @@ sshpam_query(void *ctx, char **name, char **info,
 			*num = 0;
 			**echo_on = 0;
 			free(msg);
-			ctxt->pam_done = -1;
+			ctxt->pam_done = SshPamError;
 			sshbuf_free(buffer);
 			return (-1);
 		}
@@ -988,10 +993,10 @@ sshpam_respond(void *ctx, u_int num, char **resp)
 
 	debug2_f("PAM: entering, %u responses", num);
 	switch (ctxt->pam_done) {
-	case 1:
+	case SshPamAuthenticated:
 		sshpam_authenticated = 1;
 		return KbdintResultSuccess;
-	case 0:
+	case SshPamNone:
 		break;
 	default:
 		return KbdintResultFailure;