Gather up another utility.

[u/mdw/catacomb] / key-file.c

diff --git a/key-file.c b/key-file.c
index ab620e7..15b0304 100644 (file)
--- a/key-file.c
+++ b/key-file.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: key-file.c,v 1.1 1999/12/22 15:47:48 mdw Exp $
+ * $Id: key-file.c,v 1.3 2004/04/08 01:36:15 mdw Exp $
  *
  * System-dependent key filing operations
  *
@@ -27,14 +27,6 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: key-file.c,v $
- * Revision 1.1  1999/12/22 15:47:48  mdw
- * Major key-management revision.
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
 #include <errno.h>
@@ -108,6 +100,8 @@ int key_save(key_file *f)
 
   if (!(f->f & KF_MODIFIED))
     return (KWRITE_OK);
+  if (!f->fp)
+    return (KWRITE_FAIL);
 
   /* --- Write a new key file out --- *
    *
@@ -271,7 +265,7 @@ fail_write:
  *
  * Arguments:  @key_file *f@ = pointer to file structure to initialize
  *             @const char *file@ = pointer to the file name
- *             @int how@ = opening options (@KOPEN_*@).
+ *             @unsigned how@ = opening options (@KOPEN_*@).
  *
  * Returns:    Zero if it worked, nonzero otherwise.
  *
@@ -286,15 +280,22 @@ fail_write:
  *             for the private use of @key_open@.
  */
 
-int key_lockfile(key_file *f, const char *file, int how)
+int key_lockfile(key_file *f, const char *file, unsigned how)
 {
   int of, lf;
   const char *ff;
   int fd;
 
+  /* --- Handle the magic no-file option --- */
+
+  if (how & KOPEN_NOFILE) {
+    f->fp = 0;
+    return (0);
+  }
+
   /* --- Lots of things depend on whether we're writing --- */
 
-  switch (how) {
+  switch (how & KOPEN_MASK) {
     case KOPEN_READ:
       of = O_RDONLY;
       lf = LOCK_NONEXCL;