Mostly cosmetic change: don't claim to have found an SSH agent if

SSH_AUTH_SOCK is defined to the empty string. (Because a common way to
'unset' it is to run commands like 'SSH_AUTH_SOCK= putty -load thing'.)

git-svn-id: http://svn.tartarus.org/sgt/putty@9225 cda61777-01e9-0310-a592-d414129be87e

diff --git a/unix/uxagentc.c b/unix/uxagentc.c
index 3605c60124316947ab346975086eccf463fb1cd3..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;
 }