[Pkg-gnupg-commit] [gnupg2] 63/132: dirmngr: Fix possible null reference.

[Daniel Kahn Gillmor]

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dkg pushed a commit to branch experimental
in repository gnupg2.

commit 7ae1857c90ab43ad9e31f0fb6dbd37f25cc37278
Author: NIIBE Yutaka <gniibe at fsij.org>
Date:   Wed Apr 12 15:58:11 2017 +0900

    dirmngr: Fix possible null reference.
    
    * dirmngr/dns.c (dns_error_t dns_trace_fput): Check NULL.
    
    Signed-off-by: NIIBE Yutaka <gniibe at fsij.org>
---
 dirmngr/dns.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dirmngr/dns.c b/dirmngr/dns.c
index 39d3295..9bba329 100644
--- a/dirmngr/dns.c
+++ b/dirmngr/dns.c
@@ -4606,8 +4606,9 @@ dns_error_t dns_trace_fput(const struct dns_trace_event *te, const void *data, s
 
 	if (fwrite(&tmp, 1, headsize, fp) < headsize)
 		return errno;
-	if (fwrite(data, 1, datasize, fp) < datasize)
-		return errno;
+	if (data)
+		if (fwrite(data, 1, datasize, fp) < datasize)
+			return errno;
 	if (fflush(fp))
 		return errno;
 

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