test a pointer before dereferencing it. this fixes t/pmc/io_stdin.t. …

…dukeleto++
parrot · Feb 22, 2011 · 4e6b125 · 4e6b125
1 parent 4b647be
commit 4e6b125
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/frontend/parrot/main.c b/frontend/parrot/main.c
@@ -894,7 +894,7 @@ parseflags(Parrot_PMC interp, int argc, ARGIN(const char *argv[]),
         const char * ext = strrchr(sourcefile, '.');
         if (sourcefile && ext && !strcmp(ext, ".pbc"))
             args->have_pbc_file = 1;
-        else if (sourcefile && !strcmp(ext, ".pasm"))
+        else if (sourcefile && ext && !strcmp(ext, ".pasm"))
             args->have_pasm_file = 1;
         verify_file_names(sourcefile, outfile);
         if (!Parrot_api_string_import(interp, sourcefile, &args->sourcefile))