began implementing scan() and is_updated()

+1999-11-07  Sean 'Shaleh' Perry  <shaleh@debian.org>
+
+	* TODO: restructuring, now split into sections 
+	* libmailbox/*: added two new functions to the api and began implementing
+	them in unixmbox
+	    is_updated() => has this mailbox been updated externally?
+		scan() => build info on mailbox, removing old data as needed
+	      currently not implemented
+
 1999-11-06  Sean 'Shaleh' Perry  <shaleh@debian.org>
 
 	* libmailbox/*: more work on expunge

@@ -3,19 +3,28 @@
 = --> on hold
 * --> in progress
 
+[libmailbox]
 * autogen.sh (libtool) complains about libmailbox.la in noinst (JB Oct 08/99)
 
-- added more includes to libmailbox, make sure autoconf finds them
+- added more includes, make sure autoconf finds them
 
-- libmailbox needs an interface to set flags for each message
+- need an interface to set flags for each message
 
-- libmailbox needs an interface to set and create values in the header
+- need an interface to set and create values in the header
 
-- libmailbox/unixmbox the open function needs to be split into an open and a
-  parse function
+- unixmbox's open function needs to be split into an open and a parse function
 
-- clean up 'mail''s compilation
+- needs a search ability
 
+- unixmbox needs expunge working
+
++ libmailbox has a nasty bug -- if the mailbox is empty, the library has no idea
+  what to do (Shaleh Oct 07/99)
+  
+[mail]
+- clean up 'mail''s compilation, why is there a mail script?
+
+[pop3]
 - find out why the pop3 server quits on a signal when the 'quit' command is
   given
 
@@ -23,16 +32,14 @@
 
 - test network code
 
++ crypt is linked even if pam was detected, it should be one or the other (JB Oct 08/99)
+
+[all]
 - add more features
 
 - optimize everything
 
 - test everything
 
-+ libmailbox has a nasty bug -- if the mailbox is empty, the library has no idea
-  what to do (Shaleh Oct 07/99)
-  
-+ crypt is linked even if pam was detected, it should be one or the other (JB Oct 08/99)
-
 + add imap server code (JB && Shaleh Oct 11/99)
 

@@ -78,8 +78,10 @@ mbox_open (const char *name)
   mbox->_delete = _mbox_dummy2;
   mbox->_undelete = _mbox_dummy2;
   mbox->_expunge = _mbox_dummy1;
+  mbox->_scan = _mbox_dummy1;
   mbox->_add_message = _mbox_dummy3;
   mbox->_is_deleted = _mbox_dummy2;
+  mbox->_is_updated = _mbox_dummy1;
   mbox->_lock = _mbox_dummy2;
   mbox->_get_body = _mbox_dummy4;
   mbox->_get_header = _mbox_dummy4;

@@ -31,7 +31,9 @@
 #define mbox_delete(m,n)	m->_delete(m,n)
 #define mbox_undelete(m,n)      m->_undelete(m,n)
 #define mbox_expunge(m)		m->_expunge(m)
+#define mbox_scan(m)		m->_scan(m)
 #define mbox_is_deleted(m,n)	m->_is_deleted(m,n)
+#define mbox_is_updated(m)	m->_is_updated(m)
 #define mbox_add_message(m,s)	m->_add_message(m,s)
 #define mbox_get_body(m,n)	m->_get_body(m,n)
 #define mbox_get_header(m,n)	m->_get_header(m,n)
@@ -64,7 +66,9 @@ typedef struct _mailbox
     int (*_undelete) __P ((struct _mailbox *, unsigned int));
     int (*_expunge) __P ((struct _mailbox *));
     int (*_add_message) __P ((struct _mailbox *, char *));
+	int (*_scan) __P ((struct _mailbox *));
     int (*_is_deleted) __P ((struct _mailbox *, unsigned int));
+	int (*_is_updated) __P ((struct mailbox *));
     int (*_lock) __P((struct _mailbox *, mailbox_lock_t));
     char *(*_get_body) __P ((struct _mailbox *, unsigned int));
     char *(*_get_header) __P ((struct _mailbox *, unsigned int));

@@ -31,6 +31,7 @@ unixmbox_open (mailbox * mbox)
   unsigned int max_count = 10;
   int mess = 0;
   unixmbox_data *data;
+  struct stat st;
   
   if (mbox == NULL)
     {
@@ -63,6 +64,12 @@ unixmbox_open (mailbox * mbox)
       errno = ENOMEM;
       return -1;
     }
+  if (stat (mbox->name, &st) == -1)
+    {
+      unixmbox_close (mbox);
+	  return -1;
+    }
+  data->last_mod_time = st.st_mtime;
 
   if (fgets (buf, 80, data->file) == NULL)
     {
@@ -316,6 +323,23 @@ unixmbox_is_deleted (mailbox * mbox, unsigned int num)
   return (data->messages[num].deleted == 1);
 }
 
+int
+unixmbox_is_updated (mailbox *mbox)
+{
+  struct stat st;
+  unixmbox_data *data;
+
+  if (mbox == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  if (stat (mbox->name, &st) == -1)
+      return -1;
+  data = mbox->_data;
+  return (st.st_mtime > data->last_mod_time);
+}
+
 /*
  * Adds a message to the mailbox
  */
@@ -434,6 +458,14 @@ unixmbox_lock (mailbox *mbox, mailbox_lock_t mode)
   return 0;
 }
 
+/* FIXME: not implemented */
+int
+unixmbox_scan (mailbox *mbox)
+{
+  errno = ENOSYS;
+  return -1;
+}
+
 #ifdef TESTING
 void unixmbox_tester (mailbox *mbox, unsigned int num)
 {

@@ -28,6 +28,12 @@
 #include <stdlib.h>
 #endif
 
+/* FIXME need auto* wrapper */
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <fcntl.h>
+
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -42,10 +48,6 @@
 #include <strings.h>
 #endif
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
 typedef struct _unixmbox_message
   {
     off_t header;
@@ -60,6 +62,7 @@ typedef struct _unixmbox_data
     unixmbox_message *messages;
     FILE *file;
     mailbox_lock_t lockmode;
+	time_t last_mod_time;
   }
 unixmbox_data;
 
@@ -68,7 +71,9 @@ int unixmbox_close (mailbox *mbox);
 int unixmbox_delete (mailbox *mbox, unsigned int num);
 int unixmbox_undelete (mailbox *mbox, unsigned int num);
 int unixmbox_expunge (mailbox *mbox);
+int unixmbox_scan (mailbox *mbox);
 int unixmbox_is_deleted (mailbox *mbox, unsigned int num);
+int unixmbox_is_updated (mailbox *mbox);
 int unixmbox_lock (mailbox *mbox, mailbox_lock_t mode);
 int unixmbox_add_message (mailbox *mbox, char *message);
 char *unixmbox_get_body (mailbox *mbox, unsigned int num);