Fix another error-reporting bug, in which sk_newlistener would fail to

[PuTTY.git] / unix / uxagentc.c

diff --git a/unix/uxagentc.c b/unix/uxagentc.c
index 7b737d1d5ab7c4ecd592109ba86a92fe3c2a1cfb..9f579cd9488bda6efc085b30b4d6dcc65c413e12 100644 (file)
--- 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));