From 4530776d5b3e52c91f0140520ad1d65042b0b5e8 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Mon, 19 Mar 2007 20:13:37 +0000
Subject: [PATCH] PHYSFS_init() should fail if argv0 is NULL and we can't do
 without it.

---
 physfs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/physfs.c b/physfs.c
index 9f21a3bc..a6eaf191 100644
--- a/physfs.c
+++ b/physfs.c
@@ -662,6 +662,9 @@ static char *calculateBaseDir(const char *argv0)
     if (retval != NULL)
         return(retval);
 
+    /* we need argv0 to be sane to go on. */
+    BAIL_IF_MACRO(argv0 == NULL, ERR_INVALID_ARGUMENT, NULL);
+
     /*
      * Determine if there's a path on argv0. If there is, that's the base dir.
      */
@@ -684,6 +687,8 @@ static char *calculateBaseDir(const char *argv0)
         return(retval);
     } /* if */
 
+    /* !!! FIXME: should probably just fail here instead of being heroic. */
+
     /*
      * Last ditch effort: it's the current working directory. (*shrug*)
      */