Blame SOURCES/openldap-cldap-check-for-error-on-connected-socket.patch

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From ec5eba5393e5cc65b05e54658c55500cdbff775a Mon Sep 17 00:00:00 2001
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From: Howard Chu <hyc@openldap.org>
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Date: Wed, 26 Aug 2020 13:22:52 +0100
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Subject: [PATCH 01/34] ITS#9328 cldap: check for error on connected socket
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libldap doesn't use a connected socket for UDP sessions, but 3rd
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parties can, passed in with ldap_init_fd().
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---
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 libraries/libldap/result.c | 6 ++++--
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 1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/libraries/libldap/result.c b/libraries/libldap/result.c
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index bdced135b..e2b220630 100644
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--- a/libraries/libldap/result.c
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+++ b/libraries/libldap/result.c
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@@ -486,7 +486,8 @@ retry:
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 #ifdef LDAP_CONNECTIONLESS
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 	if ( LDAP_IS_UDP(ld) ) {
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 		struct sockaddr_storage from;
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-		ber_int_sb_read( lc->lconn_sb, &from, sizeof(struct sockaddr_storage) );
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+		if ( ber_int_sb_read( lc->lconn_sb, &from, sizeof(struct sockaddr_storage) ) < 0 )
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+			goto fail;
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 		if ( ld->ld_options.ldo_version == LDAP_VERSION2 ) isv2 = 1;
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 	}
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 nextresp3:
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@@ -502,10 +503,11 @@ nextresp3:
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 		break;
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 	case LBER_DEFAULT:
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+fail:
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 		err = sock_errno();
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 #ifdef LDAP_DEBUG		   
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 		Debug( LDAP_DEBUG_CONNS,
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-			"ber_get_next failed.\n", 0, 0, 0 );
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+			"ber_get_next failed, errno=%d.\n", err, 0, 0 );
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 #endif		   
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 		if ( err == EWOULDBLOCK ) return LDAP_MSG_X_KEEP_LOOKING;
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 		if ( err == EAGAIN ) return LDAP_MSG_X_KEEP_LOOKING;
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-- 
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2.26.2
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