X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=unix%2Fuxagentc.c;h=9f579cd9488bda6efc085b30b4d6dcc65c413e12;hb=a580c22c2419a9236466ca8ee80bc97bc9da41eb;hp=826e4394b6d6f7e5b9bb23f547c8129ca0245ffc;hpb=6eec320f0b3606f17f06a290acdbb8f84afdff00;p=PuTTY.git

diff --git a/unix/uxagentc.c b/unix/uxagentc.c
index 826e4394..9f579cd9 100644
--- a/unix/uxagentc.c
+++ b/unix/uxagentc.c
@@ -8,6 +8,7 @@
 #include <unistd.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <fcntl.h>
 
 #include "putty.h"
 #include "misc.h"
@@ -16,7 +17,8 @@
 
 int agent_exists(void)
 {
-    if (getenv("SSH_AUTH_SOCK") != NULL)
+    const char *p = getenv("SSH_AUTH_SOCK");
+    if (p && *p)
 	return TRUE;
     return FALSE;
 }
@@ -121,6 +123,8 @@ int agent_query(void *in, int inlen, void **out, int *outlen,
 	exit(1);
     }
 
+    cloexec(sock);
+
     addr.sun_family = AF_UNIX;
     strncpy(addr.sun_path, name, sizeof(addr.sun_path));
     if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {