X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/d4935c564e1497843ac995957fdb044a2a8891c5..d711510305:/h/mh.h?ds=sidebyside

diff --git a/h/mh.h b/h/mh.h
index 79a230b0..6b7dec61 100644
--- a/h/mh.h
+++ b/h/mh.h
@@ -8,9 +8,8 @@
  */
 #define	NOTOK        (-1)	/* syscall()s return this on error */
 #define	OK             0	/*  ditto on success               */
-#define	DONE           1	/* trinary logic                   */
+#define	DONE           1	/* ternary logic                   */
 #define ALL           ""
-#define	Nbby           8	/* number of bits/byte */
 
 #define MAXARGS	    1000	/* max arguments to exec                */
 #define NFOLDERS    1000	/* max folder arguments on command line */
@@ -21,7 +20,7 @@
  * This macro is for use by scan, for example, so that platforms with
  * a small BUFSIZ can easily allocate larger buffers.
  */
-#define NMH_BUFSIZ  (BUFSIZ>=8192 ? BUFSIZ : 8192)
+#define NMH_BUFSIZ  max(BUFSIZ, 8192)
 
 #ifndef FALSE
 #define FALSE false
@@ -49,6 +48,9 @@ typedef unsigned char  boolean;  /* not int so we can pack in a structure */
  * terminating NUL. */
 #define LEN(s) (sizeof (s) - 1)
 
+/* FENDNULL fends off NULL by giving an empty string instead. */
+#define FENDNULL(s) ((s) ? (s) : "")
+
 /*
  * char array that keeps track of size in both bytes and characters
  * Usage note:
@@ -188,20 +190,27 @@ extern struct swit anoyes[];	/* standard yes/no switches */
 
 #define	MBITS "\020\01EXISTS\02SELECTED\03NEW\04UNSEEN"
 
-/*
- * type for holding the sequence set of a message
- */
+/* A vector of bits for tracking the sequence membership of a single
+ * message.  Do not access the struct members; use vector.c.
+ * Do not move or copy this struct as it may contain a pointer to
+ * itself;  use bvector_copy(). */
+struct bvector {
+    unsigned long *bits;
+    size_t maxsize;
+    unsigned long tiny[2];   /* Default fixed-size storage for bits. */
+};
 typedef struct bvector *bvector_t;
 
-bvector_t bvector_create (size_t /* initial size in bits, can be 0 */);
+bvector_t bvector_create (void);
+void bvector_init(struct bvector *bv);
 void bvector_copy (bvector_t, bvector_t);
 void bvector_free (bvector_t);
+void bvector_fini(struct bvector *bv);
 void bvector_clear (bvector_t, size_t);
 void bvector_clear_all (bvector_t);
 void bvector_set (bvector_t, size_t);
 unsigned int bvector_at (bvector_t, size_t);
-const unsigned long *bvector_bits (bvector_t);
-size_t bvector_maxsize (bvector_t);
+unsigned long bvector_first_bits (bvector_t);
 
 typedef struct svector *svector_t;
 
@@ -220,7 +229,6 @@ void ivector_free (ivector_t);
 int ivector_push_back (ivector_t, int);
 int ivector_at (ivector_t, size_t);
 int *ivector_atp (ivector_t, size_t);
-size_t ivector_size (ivector_t);
 
 /*
  * Primary structure of folder/message information
@@ -266,7 +274,7 @@ struct msgs {
      * in a particular sequence.
      */
     size_t num_msgstats;
-    bvector_t *msgstats;	/* msg status */
+    struct bvector *msgstats;	/* msg status */
 
     /*
      * A FILE handle containing an open filehandle for the sequence file
@@ -292,7 +300,7 @@ struct msgs {
 /*
  * macros for message and sequence manipulation
  */
-#define msgstat(mp,n) (mp)->msgstats[(n) - mp->lowoff]
+#define msgstat(mp,n) ((mp)->msgstats + (n) - mp->lowoff)
 #define clear_msg_flags(mp,msgnum)   bvector_clear_all (msgstat(mp, msgnum))
 #define copy_msg_flags(mp,i,j)       bvector_copy (msgstat(mp,i), msgstat(mp,j))
 #define get_msg_flags(mp,ptr,msgnum) bvector_copy (ptr, msgstat(mp, msgnum))
@@ -332,7 +340,7 @@ struct msgs {
 #define make_seq_private(mp,seqnum) \
         bvector_set (mp->attrstats, FFATTRSLOT + seqnum)
 #define make_all_public(mp) \
-        mp->attrstats = bvector_create(0); bvector_clear_all (mp->attrstats)
+        mp->attrstats = bvector_create(); bvector_clear_all (mp->attrstats)
 
 /*
  * macros for folder attributes
@@ -345,8 +353,6 @@ struct msgs {
 #define other_files(mp)     ((mp)->msgflags & OTHERS)
 #define set_other_files(mp) ((mp)->msgflags |= OTHERS)
 
-#define	NULLMP	((struct msgs *) 0)
-
 /*
  * m_getfld() message parsing
  */
@@ -376,7 +382,7 @@ typedef struct m_getfld_state *m_getfld_state_t;
 #define	MS_DEFAULT	0	/* default (one msg per file) */
 #define	MS_UNKNOWN	1	/* type not known yet         */
 #define	MS_MBOX		2	/* Unix-style "from" lines    */
-#define	MS_MMDF		3	/* string mmdlm2              */
+#define	MS_MMDF		3	/* string MMDF_DELIM          */
 
 #define	NOUSE	0		/* draft being re-used */
 
@@ -424,13 +430,6 @@ extern char *defpath;		/* pathname of user's profile      */
 extern char *ctxpath;		/* pathname of user's context      */
 extern struct node *m_defs;	/* list of profile/context entries */
 
-/* What style to use for generated Message-ID and Content-ID header
-   fields.  The localname style is pid.time@localname, where time is
-   in seconds.  The random style replaces the localname with some
-   (pseudo)random bytes and uses microsecond-resolution time. */
-int save_message_id_style (const char *);
-char *message_id (time_t, int);
-
 /*
  * These standard strings are defined in config.c.  They are the
  * only system-dependent parameters in nmh, and thus by redefining