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-rw-r--r--lib/libc/posix1e/acl_to_text.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/libc/posix1e/acl_to_text.c b/lib/libc/posix1e/acl_to_text.c
index 4c079e4..b5e7b92 100644
--- a/lib/libc/posix1e/acl_to_text.c
+++ b/lib/libc/posix1e/acl_to_text.c
@@ -1,5 +1,5 @@
/*-
- * Copyright (c) 1999, 2000, 20001 Robert N. M. Watson
+ * Copyright (c) 1999-2002 Robert N. M. Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -66,6 +66,11 @@ acl_to_text(acl_t acl, ssize_t *len_p)
if (!buf)
return(NULL);
+ if (acl == NULL) {
+ errno = EINVAL;
+ return(NULL);
+ }
+
acl_int = &acl->ats_acl;
mask_perm = ACL_PERM_BITS; /* effective is regular if no mask */
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