From d3833f31da28808274c6d08804646116be7dabb8 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Fri, 13 Mar 1998 20:20:19 +0000
Subject: Re-engineer the UIDL stuff to avoid having the status flag collide
 with message numbers.

svn path=/trunk/; revision=1699
---
 fetchmail.h | 44 +++++++++++++++++++++-----------------------
 1 file changed, 21 insertions(+), 23 deletions(-)

(limited to 'fetchmail.h')

diff --git a/fetchmail.h b/fetchmail.h
index 259add67..9480ddb0 100644
--- a/fetchmail.h
+++ b/fetchmail.h
@@ -66,6 +66,16 @@
 
 #define		SIZETICKER	1024	/* print 1 dot per this many bytes */
 
+/*
+ * We #ifdef this and use flag rather than bool
+ * to avoid a type clash with curses.h
+ */
+#ifndef TRUE
+#define FALSE	0
+#define TRUE	1
+#endif /* TRUE */
+typedef	char	flag;
+
 /* we need to use zero as a flag-uninitialized value */
 #define FLAG_TRUE	2
 #define FLAG_FALSE	1
@@ -75,22 +85,21 @@ struct idlist
     char *id;
     union
     {
-	int num;
+	struct
+	{
+	    short	num;
+	    flag	mark;		/* UID-index information */
+#define UID_UNSEEN	0		/* hasn't been seen */
+#define UID_SEEN	1		/* seen, but not deleted */
+#define UID_DELETED	2		/* this message has been deleted */
+#define UID_EXPUNGED	3		/* this message has been expunged */ 
+        }
+	status;
 	char *id2;
     } val;
     struct idlist *next;
 };
 
-/*
- * We #ifdef this and use flag rather than bool
- * to avoid a type clash with curses.h
- */
-#ifndef TRUE
-#define FALSE	0
-#define TRUE	1
-#endif /* TRUE */
-typedef	char	flag;
-
 struct hostdata		/* shared among all user connections to given server */
 {
     /* rc file data */
@@ -174,17 +183,6 @@ struct query
     struct query *next;		/* next query control block in chain */
 };
 
-/*
- * UID-index information.  If the sign bit is on, this means the 
- * message UID has been seen or expunged and should be written
- * out to .fetchids at end of run.
- */
-#define UID_KEPT	0		/* remembered from a previous run */
-#define UID_DELETED	INT_MIN		/* this message has been deleted */
-#define UID_EXPUNGED	INT_MAX		/* this message has been expunged */ 
-#define SAVE_UID(n)	((n) <= 0)	/* must this UID be saved? */
-#define MARK_SEEN(n)	n *= -1		/* mark a UID seen */
-
 /*
  * Numeric option handling.  Numeric option value of zero actually means
  * it's unspecified.  Value less than zero is zero.
@@ -299,7 +297,7 @@ char *nxtaddr(const char *);
 
 /* uid.c: UID support */
 void initialize_saved_lists(struct query *, const char *);
-struct idlist *save_str(struct idlist **, int, const char *);
+struct idlist *save_str(struct idlist **, const char *, flag);
 void free_str_list(struct idlist **);
 void save_str_pair(struct idlist **, const char *, const char *);
 void free_str_pair_list(struct idlist **);
-- 
cgit v1.2.3