X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/89e97516fedf1d0a7fe9c569bb569fa7ea872afa..b61f81bc4c102d06f13fd68e4a73ab8fdfdb3cf5:/unix/uxagentc.c

diff --git a/unix/uxagentc.c b/unix/uxagentc.c
index 7b737d1d..9f579cd9 100644
--- a/unix/uxagentc.c
+++ b/unix/uxagentc.c
@@ -17,7 +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;
 }
@@ -122,7 +123,7 @@ int agent_query(void *in, int inlen, void **out, int *outlen,
 	exit(1);
     }
 
-    fcntl(sock, F_SETFD, FD_CLOEXEC);
+    cloexec(sock);
 
     addr.sun_family = AF_UNIX;
     strncpy(addr.sun_path, name, sizeof(addr.sun_path));