X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/052b36d05a622a93733b735acce2de865b14627b..2685767a6125c1620719c7de6234aedf41857b7e:/key-io.c

diff --git a/key-io.c b/key-io.c
index 6d4876f..dbe8bdf 100644
--- a/key-io.c
+++ b/key-io.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: key-io.c,v 1.2 2000/02/12 18:21:02 mdw Exp $
+ * $Id: key-io.c,v 1.4 2001/02/03 11:57:38 mdw Exp $
  *
  * Adding new keys to a key file
  *
@@ -30,6 +30,12 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: key-io.c,v $
+ * Revision 1.4  2001/02/03 11:57:38  mdw
+ * Allow creating keyfiles with no file attached.
+ *
+ * Revision 1.3  2001/01/20 11:56:48  mdw
+ * Use mLib exported tuning parameters for hashtable.
+ *
  * Revision 1.2  2000/02/12 18:21:02  mdw
  * Overhaul of key management (again).
  *
@@ -60,7 +66,7 @@
 
 /*----- Tweakable macros --------------------------------------------------*/
 
-#define KEY_LOAD(n) ((n) * 2)
+#define KEY_INITSZ 16
 
 /*----- Low-level functions -----------------------------------------------*/
 
@@ -120,7 +126,7 @@ static int insert(key_file *f, key *k)
   if (f->idload > 0)
     f->idload--;
   else if (hash_extend(&f->byid))
-    f->idload = KEY_LOAD(f->byid.mask / 2);
+    f->idload = SYM_LIMIT(f->byid.mask / 2);
 
   /* --- Insert into the type table --- */
 
@@ -417,7 +423,7 @@ int key_extract(key_file *f, key *k, FILE *fp, const key_filter *kf)
  *
  * 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_*@).
  *		@key_reporter *rep@ = error reporting function
  *		@void *arg@ = argument for function
  *
@@ -431,33 +437,26 @@ int key_extract(key_file *f, key *k, FILE *fp, const key_filter *kf)
  *		owner only.
  */
 
-int key_open(key_file *f, const char *file, int how,
+int key_open(key_file *f, const char *file, unsigned how,
 	     key_reporter *rep, void *arg)
 {
   if (key_lockfile(f, file, how))
     return (-1);
 
-  /* --- Trivial bits of initialization --- */
-
   f->f = 0;
   f->name = xstrdup(file);
 
-  /* --- Read the file of keys into the table --- */
-
-  hash_create(&f->byid, 16);
-  f->idload = KEY_LOAD(16);
+  hash_create(&f->byid, KEY_INITSZ);
+  f->idload = SYM_LIMIT(KEY_INITSZ);
   sym_create(&f->bytype);
   sym_create(&f->bytag);
   f->f |= KF_WRITE;
-  key_merge(f, file, f->fp, rep, arg);
-  if (how == KOPEN_READ)
-    f->f &= ~(KF_WRITE | KF_MODIFIED);
-  else
-    f->f &= ~KF_MODIFIED;
-
-  /* --- Close the file if only needed for reading --- */
+  if (f->fp)
+    key_merge(f, file, f->fp, rep, arg);
+  f->f &= ~KF_MODIFIED;
 
-  if (how == KOPEN_READ) {
+  if ((how & KOPEN_MASK) == KOPEN_READ) {
+    f->f &= ~KF_WRITE;
     fclose(f->fp);
     f->fp = 0;
   }
@@ -481,7 +480,7 @@ int key_close(key_file *f)
   hash_base *b;
   hash_iter i;
 
-  if ((e = key_save(f)) != KWRITE_OK)
+  if (f->fp && (e = key_save(f)) != KWRITE_OK)
     return (e);
 
   /* --- Free all the individual keys --- */