From 42b7717b167553c10adbed1a0ef405b1accfc87e Mon Sep 17 00:00:00 2001
From: Adam Zimmerman <address@hidden>
Date: Wed, 6 Jun 2018 14:47:46 -0700
Subject: [PATCH] gnu: opensmtpd: Add patch to fix crash on authentication

* gnu/packages/mail.scm (opensmtpd): Add patch to fix crash
---
 gnu/packages/mail.scm                          |  3 +-
 gnu/packages/patches/opensmtpd-fix-crash.patch | 44 ++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/opensmtpd-fix-crash.patch

diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index f6dfb3397..c0f4bfbdf 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1995,7 +1995,8 @@ transfer protocols.")
                                   name "-" version ".tar.gz"))
               (sha256
                (base32
-                "10bsfsnlg9d9i6l2izdnxp05s3ri8fvwzqxvx1jmarc852382619"))))
+                "10bsfsnlg9d9i6l2izdnxp05s3ri8fvwzqxvx1jmarc852382619"))
+              (patches (search-patches "opensmtpd-fix-crash.patch"))))
     (build-system gnu-build-system)
     (inputs
      `(("bdb" ,bdb)
diff --git a/gnu/packages/patches/opensmtpd-fix-crash.patch b/gnu/packages/patches/opensmtpd-fix-crash.patch
new file mode 100644
index 000000000..003016753
--- /dev/null
+++ b/gnu/packages/patches/opensmtpd-fix-crash.patch
@@ -0,0 +1,44 @@
+From 9b5f70b93e038df5446bd37a4adac5a0380748e7 Mon Sep 17 00:00:00 2001
+From: johannes <address@hidden>
+Date: Wed, 21 Feb 2018 23:57:11 +0100
+Subject: [PATCH] crypt_checkpass: include HAVE_CRYPT_H definition, add NULL
+ check
+
+---
+ openbsd-compat/crypt_checkpass.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/openbsd-compat/crypt_checkpass.c b/openbsd-compat/crypt_checkpass.c
+index dafd2dae..d10b3a57 100644
+--- a/openbsd-compat/crypt_checkpass.c
++++ b/openbsd-compat/crypt_checkpass.c
+@@ -1,5 +1,6 @@
+ /* OPENBSD ORIGINAL: lib/libc/crypt/cryptutil.c */
+ 
++#include "includes.h"
+ #include <errno.h>
+ #ifdef HAVE_CRYPT_H
+ #include <crypt.h>
+@@ -10,6 +11,8 @@
+ int
+ crypt_checkpass(const char *pass, const char *goodhash)
+ {
++	char *c;
++
+ 	if (goodhash == NULL)
+ 		goto fail;
+ 
+@@ -17,7 +20,11 @@ crypt_checkpass(const char *pass, const char *goodhash)
+ 	if (strlen(goodhash) == 0 && strlen(pass) == 0)
+ 		return 0;
+ 
+-	if (strcmp(crypt(pass, goodhash), goodhash) == 0)
++	c = crypt(pass, goodhash);
++	if (c == NULL)
++		goto fail;
++
++	if (strcmp(c, goodhash) == 0)
+ 		return 0;
+ 
+ fail:
+
-- 
2.14.1