X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=unix%2Fuxagentc.c;h=9f579cd9488bda6efc085b30b4d6dcc65c413e12;hb=3fa95b2a7fa8082ad0109959d601c9e664ecdf84;hp=3605c60124316947ab346975086eccf463fb1cd3;hpb=86eac20abb7e5b46a2ff31d1b97baea0f9ba771a;p=PuTTY.git

diff --git a/unix/uxagentc.c b/unix/uxagentc.c
index 3605c601..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;
 }