use mu_url_sget or mu_url_aget accessors

@@ -160,30 +160,24 @@ authenticate_imap_login (mu_authority_t auth)
     case IMAP_AUTH:
       {
 	/* Grab the User and Passwd information.  */
-	size_t n = 0;
 	mu_authority_get_ticket (auth, &ticket);
 	if (f_imap->user)
 	  free (f_imap->user);
 	if (f_imap->passwd)
 	  free (f_imap->passwd);
 	/* Was it in the URL?  */
-	status = mu_url_get_user (folder->url, NULL, 0, &n);
-        if (status != 0 || n == 0)
+	status = mu_url_aget_user (folder->url, &f_imap->user);
+        if (status == MU_ERR_NOENT)
 	  mu_ticket_pop (ticket, folder->url, "Imap User: ",  &f_imap->user);
-	else
-	  {
-	    f_imap->user = calloc (1, n + 1);
-	    mu_url_get_user (folder->url, f_imap->user, n + 1, NULL);
-	  }
-	/* Was it in the URL?  */
-	status = mu_url_get_passwd (folder->url, NULL, 0, &n);
-        if (status != 0 || n == 0)
-	  mu_ticket_pop (ticket, folder->url, "Imap Passwd: ",  &f_imap->passwd);
-	else
-	  {
-	    f_imap->passwd = calloc (1, n + 1);
-	    mu_url_get_passwd (folder->url, f_imap->passwd, n + 1, NULL);
-	  }
+	else if (status)
+	  return status;
+
+	status = mu_url_aget_passwd (folder->url, &f_imap->passwd);
+        if (status == MU_ERR_NOENT)
+	  mu_ticket_pop (ticket, folder->url, "Imap Passwd: ",  
+	                 &f_imap->passwd);
+	else if (status)
+	  return status;
 
 	if (f_imap->user == NULL)
 	  return MU_ERR_NOUSERNAME;
@@ -582,7 +576,7 @@ static int
 folder_imap_open (mu_folder_t folder, int flags)
 {
   f_imap_t f_imap = folder->data;
-  char *host;
+  const char *host;
   long port = 143; /* default imap port.  */
   int status = 0;
   size_t len = 0;
@@ -597,11 +591,9 @@ folder_imap_open (mu_folder_t folder, int flags)
   mu_monitor_unlock (folder->monitor);
 
   /* Fetch the server name and the port in the mu_url_t.  */
-  status = mu_url_get_host (folder->url, NULL, 0, &len);
+  status = mu_url_sget_host (folder->url, &host);
   if (status != 0)
     return status;
-  host = alloca (len + 1);
-  mu_url_get_host (folder->url, host, len + 1, NULL);
   mu_url_get_port (folder->url, &port);
 
   folder->flags = flags;

@@ -125,8 +125,8 @@ static int  is_same_folder        (mu_mailbox_t, mu_message_t);
 int
 _mailbox_imap_init (mu_mailbox_t mailbox)
 {
+  int status;
   m_imap_t m_imap;
-  size_t name_len = 0;
   mu_folder_t folder = NULL;
 
   assert(mailbox);
@@ -138,18 +138,15 @@ _mailbox_imap_init (mu_mailbox_t mailbox)
     return ENOMEM;
 
   /* Retrieve the name of the mailbox from the URL.  */
-  mu_url_get_path (mailbox->url, NULL, 0, &name_len);
-  if (name_len == 0)
-    {
-      /* name "INBOX" is the default.  */
-      m_imap->name = calloc (6, sizeof (char));
-      strcpy (m_imap->name, "INBOX");
-    }
-  else
+  status = mu_url_aget_path (mailbox->url, &m_imap->name);
+  if (status == MU_ERR_NOENT)
     {
-      m_imap->name = calloc (name_len + 1, sizeof (char));
-      mu_url_get_path (mailbox->url, m_imap->name, name_len + 1, NULL);
+      m_imap->name = strdup ("INBOX");
+      if (!m_imap->name)
+        return ENOMEM;
     }
+  else if (status)
+    return status;
 
   /* Overload the functions.  */
   mailbox->_destroy = mailbox_imap_destroy;
@@ -298,21 +295,18 @@ mailbox_imap_open (mu_mailbox_t mailbox, int flags)
 	{
 	case IMAP_NO_STATE:
 	  {
-	    char *path;
+	    const char *path;
 	    size_t len;
-	    mu_url_get_path (folder->url, NULL, 0, &len);
-	    if (len == 0)
+	    status = mu_url_sget_path (folder->url, &path);
+	    if (status == MU_ERR_NOENT)
 	      return 0;
-	    path = calloc (len + 1, sizeof (*path));
-	    if (path == NULL)
-	      return ENOMEM;
-	    mu_url_get_path (folder->url, path, len + 1, NULL);
+	    else if (status)
+	      return status;
 	    status = imap_writeline (f_imap, "g%u CREATE %s\r\n",
 				     f_imap->seq, path);
 	    MAILBOX_DEBUG2 (folder, MU_DEBUG_PROT, "g%u CREATE %s\n",
 			    f_imap->seq, path);
 	    f_imap->seq++;
-	    free (path);
 	    if (status != 0)
 	      {
 		m_imap->state = f_imap->state = IMAP_NO_STATE;
@@ -980,7 +974,7 @@ imap_append_message0 (mu_mailbox_t mailbox, mu_message_t msg)
     case IMAP_NO_STATE:
       {
 	size_t lines, size;
-	char *path;
+	const char *path;
 	char *abuf = malloc (1);
 	/* Get the desired flags attribute.  */
 	if (abuf == NULL)
@@ -1009,28 +1003,9 @@ imap_append_message0 (mu_mailbox_t mailbox, mu_message_t msg)
 	}
 
 	/* Get the mailbox filepath.  */
-	{
-	  size_t n = 0;
-	  mu_url_get_path (mailbox->url, NULL, 0, &n);
-	  if (n == 0)
-	    {
-	      if (!(path = strdup ("INBOX")))
-		{
-		  free (abuf);
-		  return ENOMEM;
-		}
-	    }
-	  else
-	    {
-	      path = calloc (n + 1, sizeof (*path));
-	      if (path == NULL)
-		{
-		  free (abuf);
-		  return ENOMEM;
-		}
-	      mu_url_get_path (mailbox->url, path, n + 1, NULL);
-	    }
-	}
+        status = mu_url_sget_path (mailbox->url, &path);
+        if (status == MU_ERR_NOENT)
+          path = "INBOX";
 
 	/* FIXME: we need to get the mu_envelope_date and use it.
 	   currently it is ignored.  */
@@ -1046,7 +1021,6 @@ imap_append_message0 (mu_mailbox_t mailbox, mu_message_t msg)
 				 abuf,
 				 mu_umaxtostr (1, size + lines));
 	free (abuf);
-	free (path);
 	CHECK_ERROR (f_imap, status);
 	MAILBOX_DEBUG0 (mailbox, MU_DEBUG_PROT, f_imap->buffer);
 	f_imap->state = IMAP_APPEND;
@@ -1132,21 +1106,14 @@ imap_copy_message (mu_mailbox_t mailbox, mu_message_t msg)
     {
     case IMAP_NO_STATE:
       {
-	char *path;
-	size_t n = 0;
+	const char *path;
 	/* Check for a valid mailbox name.  */
-	mu_url_get_path (mailbox->url, NULL, 0, &n);
-	if (n == 0)
-	  return EINVAL;
-	path = calloc (n + 1, sizeof (*path));
-	if (path == NULL)
-	  return ENOMEM;
-	mu_url_get_path (mailbox->url, path, n + 1, NULL);
+	status = mu_url_sget_path (mailbox->url, &path);
+	if (status == 0)
   	  status = imap_writeline (f_imap, "g%s COPY %s %s\r\n",
 	 			   mu_umaxtostr (0, f_imap->seq++),
 				   mu_umaxtostr (1, msg_imap->num),
 				   path);
-	free (path);
 	CHECK_ERROR (f_imap, status);
 	MAILBOX_DEBUG0 (mailbox, MU_DEBUG_PROT, f_imap->buffer);
 	f_imap->state = IMAP_COPY;

@@ -152,15 +152,13 @@ _folder_mbox_init (mu_folder_t folder)
   if (dfolder == NULL)
     return ENOMEM;
 
-  mu_url_get_path (folder->url, NULL, 0, &name_len);
-  dfolder->dirname = calloc (name_len + 1, sizeof (char));
-  if (dfolder->dirname == NULL)
+  status = mu_url_aget_path (folder->url, &dfolder->dirname);
+  if (status)  
     {
       free (dfolder);
       folder->data = NULL;
       return ENOMEM;
     }
-  mu_url_get_path (folder->url, dfolder->dirname, name_len + 1, NULL);
 
   folder->_destroy = folder_mbox_destroy;
 

@@ -76,8 +76,8 @@ static int mbox_tmpfile               (mu_mailbox_t, char **pbox);
 int
 _mailbox_mbox_init (mu_mailbox_t mailbox)
 {
+  int status;
   mbox_data_t mud;
-  size_t name_len;
 
   if (mailbox == NULL)
     return EINVAL;
@@ -98,15 +98,13 @@ _mailbox_mbox_init (mu_mailbox_t mailbox)
      will be "///var/mail/alain", we let open() do the right thing.
      So it will let things like this "mbox://390/var/mail/alain" where
      the "//" _is_ part of the filename, pass correctely.  */
-  mu_url_get_path (mailbox->url, NULL, 0, &name_len);
-  mud->name = calloc (name_len + 1, sizeof (char));
-  if (mud->name == NULL)
+  status = mu_url_aget_path (mailbox->url, &mud->name);
+  if (status)
     {
       free (mud);
       mailbox->data = NULL;
-      return ENOMEM;
+      return status;
     }
-  mu_url_get_path (mailbox->url, mud->name, name_len + 1, NULL);
 
   mud->state = MBOX_NO_STATE;
 

@@ -100,10 +100,9 @@ nntp_folder_open (mu_folder_t folder, int flags)
 {
   f_nntp_t f_nntp = folder->data;
   mu_stream_t carrier = NULL;
-  char *host;
+  const char *host;
   long port = MU_NNTP_DEFAULT_PORT; /* default nntp port.  */
   int status = 0;
-  size_t len = 0;
 
   /* If we are already open for business, noop.  */
   mu_monitor_wrlock (folder->monitor);
@@ -115,25 +114,21 @@ nntp_folder_open (mu_folder_t folder, int flags)
   mu_monitor_unlock (folder->monitor);
 
   /* Fetch the server name and the port in the mu_url_t.  */
-  status = mu_url_get_host (folder->url, NULL, 0, &len);
+  status = mu_url_sget_host (folder->url, &host);
   if (status != 0)
     return status;
-  host = malloc (len + 1);
-  if (!host)
-    return ENOMEM;
-  mu_url_get_host (folder->url, host, len + 1, NULL);
   mu_url_get_port (folder->url, &port);
 
   folder->flags = flags;
 
   /* Create the networking stack.  */
   status = mu_tcp_stream_create (&carrier, host, port, folder->flags);
-  free (host);
   if (status != 0)
     return status;
   /* Ask for the stream internal buffering mechanism scheme.  */
   mu_stream_setbufsiz (carrier, BUFSIZ);
-  FOLDER_DEBUG2 (folder, MU_DEBUG_PROT, "folder_nntp_open (%s:%d)\n", host, port);
+  FOLDER_DEBUG2 (folder, MU_DEBUG_PROT, "folder_nntp_open (%s:%d)\n", 
+                 host, port);
 
   status = mu_nntp_create (&f_nntp->nntp);
   if (status == 0)

@@ -92,7 +92,6 @@ _nntp_mailbox_init (mu_mailbox_t mbox)
 {
   m_nntp_t m_nntp;
   int status = 0;
-  size_t name_len = 0;
 
   /* Allocate specifics for nntp data.  */
   m_nntp = mbox->data = calloc (1, sizeof (*m_nntp));
@@ -106,19 +105,19 @@ _nntp_mailbox_init (mu_mailbox_t mbox)
   m_nntp->mailbox = mbox;		/* Back pointer.  */
 
   /* Retrieve the name of the newsgroup from the URL.  */
-  mu_url_get_path (mbox->url, NULL, 0, &name_len);
-  if (name_len == 0)
+  status = mu_url_aget_path (mbox->url, &m_nntp->name);
+  if (status == MU_ERR_NOENT)
     {
-      /* name "INBOX" is the default.  */
-      m_nntp->name = calloc (6, sizeof (char));
-      strcpy (m_nntp->name, "INBOX");
+      m_nntp->name = strdup ("INBOX");
+      if (!m_nntp->name)
+        return ENOMEM;
     }
+  else if (status)
+    return status;
   else  
     {
       char *p;
-      m_nntp->name = calloc (name_len + 1, sizeof (char));
-      mu_url_get_path (mbox->url, m_nntp->name, name_len + 1, NULL);
-      p = strchr (m_nntp->name,'/');
+      p = strchr (m_nntp->name, '/');
       if (p)
 	*p = '\0';
     }

@@ -680,8 +680,7 @@ pop_open (mu_mailbox_t mbox, int flags)
 {
   pop_data_t mpd = mbox->data;
   int status;
-  char *host;
-  size_t hostlen = 0;
+  const char *host;
   long port = MU_POP_PORT;
 
   /* Sanity checks.  */
@@ -689,11 +688,9 @@ pop_open (mu_mailbox_t mbox, int flags)
     return EINVAL;
 
   /* Fetch the pop server name and the port in the mu_url_t.  */
-  status = mu_url_get_host (mbox->url, NULL, 0, &hostlen);
+  status = mu_url_sget_host (mbox->url, &host);
   if (status != 0)
     return status;
-  host = alloca (hostlen + 1);
-  mu_url_get_host (mbox->url, host, hostlen + 1, NULL);
   mu_url_get_port (mbox->url, &port);
 
   mbox->flags = flags;
@@ -2044,7 +2041,6 @@ pop_get_user (mu_authority_t auth)
   mu_ticket_t ticket = NULL;
   int status;
   /*  Fetch the user from them.  */
-  size_t n = 0;
 
   mu_authority_get_ticket (auth, &ticket);
   if (mpd->user)
@@ -2053,14 +2049,11 @@ pop_get_user (mu_authority_t auth)
       mpd->user = NULL;
     }
   /* Was it in the URL? */
-  status = mu_url_get_user (mbox->url, NULL, 0, &n);
-  if (status != 0 || n == 0)
+  status = mu_url_aget_user (mbox->url, &mpd->user);
+  if (status == MU_ERR_NOENT)
     mu_ticket_pop (ticket, mbox->url, "Pop User: ",  &mpd->user);
-  else
-    {
-      mpd->user = calloc (1, n + 1);
-      mu_url_get_user (mbox->url, mpd->user, n + 1, NULL);
-    }
+  else if (status)
+    return status;
   return 0;
 }
 
@@ -2073,8 +2066,6 @@ pop_get_passwd (mu_authority_t auth)
   pop_data_t mpd = mbox->data;
   mu_ticket_t ticket = NULL;
   int status;
-  /*  Fetch the user from them.  */
-  size_t n = 0;
 
   mu_authority_get_ticket (auth, &ticket);
   if (mpd->passwd)
@@ -2083,14 +2074,11 @@ pop_get_passwd (mu_authority_t auth)
       mpd->passwd = NULL;
     }
   /* Was it in the URL? */
-  status = mu_url_get_passwd (mbox->url, NULL, 0, &n);
-  if (status != 0 || n == 0)
+  status = mu_url_aget_passwd (mbox->url, &mpd->passwd);
+  if (status == MU_ERR_NOENT)
     mu_ticket_pop (ticket, mbox->url, "Pop Passwd: ",  &mpd->passwd);
-  else
-    {
-      mpd->passwd = calloc (1, n + 1);
-      mu_url_get_passwd (mbox->url, mpd->passwd, n + 1, NULL);
-    }
+  else if (status)
+    return status;
   return 0;
 }
 

@@ -242,10 +242,11 @@ amd_array_shrink (struct _amd_data *amd, size_t index)
 
 
 int
-amd_init_mailbox (mu_mailbox_t mailbox, size_t amd_size, struct _amd_data **pamd) 
+amd_init_mailbox (mu_mailbox_t mailbox, size_t amd_size,
+		  struct _amd_data **pamd) 
 {
+  int status;
   struct _amd_data *amd;
-  size_t name_len;
 
   if (mailbox == NULL)
     return MU_ERR_MBX_NULL;
@@ -259,15 +260,13 @@ amd_init_mailbox (mu_mailbox_t mailbox, size_t amd_size, struct _amd_data **pamd
   /* Back pointer.  */
   amd->mailbox = mailbox;
 
-  mu_url_get_path (mailbox->url, NULL, 0, &name_len);
-  amd->name = calloc (name_len + 1, sizeof (char));
-  if (amd->name == NULL)
+  status = mu_url_aget_path (mailbox->url, &amd->name);
+  if (status)
     {
       free (amd);
       mailbox->data = NULL;
-      return ENOMEM;
+      return status;
     }
-  mu_url_get_path (mailbox->url, amd->name, name_len + 1, NULL);
 
   /* Overloading the defaults.  */
   mailbox->_destroy = amd_destroy;

@@ -125,7 +125,6 @@ sendmail_open (mu_mailer_t mailer, int flags)
 {
   sendmail_t sendmail = mailer->data;
   int status;
-  size_t pathlen = 0;
   char *path;
 
   /* Sanity checks.  */
@@ -134,13 +133,9 @@ sendmail_open (mu_mailer_t mailer, int flags)
 
   mailer->flags = flags;
 
-  if ((status = mu_url_get_path (mailer->url, NULL, 0, &pathlen)) != 0
-      || pathlen == 0)
+  if ((status = mu_url_aget_path (mailer->url, &path)))
     return status;
 
-  path = calloc (pathlen + 1, sizeof (char));
-  mu_url_get_path (mailer->url, path, pathlen + 1, NULL);
-
   if (access (path, X_OK) == -1)
     {
       free (path);

@@ -297,7 +297,6 @@ smtp_open (mu_mailer_t mailer, int flags)
   smtp_t smtp = mailer->data;
   int status;
   long port;
-  size_t buf_len = 0;
 
   /* Sanity checks.  */
   if (!smtp)
@@ -305,27 +304,21 @@ smtp_open (mu_mailer_t mailer, int flags)
 
   mailer->flags = flags;
 
-  /* Fetch the mailer server name and the port in the mu_url_t.  */
-  if ((status = mu_url_get_host (mailer->url, NULL, 0, &buf_len)) != 0
-      || buf_len == 0 || (status = mu_url_get_port (mailer->url, &port)) != 0)
+  if ((status = mu_url_get_port (mailer->url, &port)) != 0)
      return status;
 
   switch (smtp->state)
     {
     case SMTP_NO_STATE:
-      /* Set up the mailer, open the stream, etc. */
-      /* Get the mailhost.  */
       if (smtp->mailhost)
 	{
 	  free (smtp->mailhost);
 	  smtp->mailhost = NULL;
 	}
-      smtp->mailhost = calloc (buf_len + 1, sizeof (char));
-
-      if (smtp->mailhost == NULL)
-	return ENOMEM;
 
-      mu_url_get_host (mailer->url, smtp->mailhost, buf_len + 1, NULL);
+      /* Fetch the mailer server name and the port in the mu_url_t.  */
+      if ((status = mu_url_aget_host (mailer->url, &smtp->mailhost)) != 0)
+        return status;
 
       if (smtp->localhost)
 	{

@@ -378,35 +378,27 @@ static int
 get_user (mu_url_t url, const char *filename, char **user)
 {
   char *u = 0;
+  int status;
 
   if (url)
     {
-      size_t n = 0;
-      mu_url_get_user (url, NULL, 0, &n);
-
-      if (n)
-	{
-	  u = calloc (1, n + 1);
-	  mu_url_get_user (url, u, n + 1, NULL);
-	}
+      status = mu_url_aget_user (url, &u);
+      if (status && status != MU_ERR_NOENT)
+        return status;
     }
+
   if (!u && filename)
     {
       mu_url_t ticket = 0;
-      int e = get_ticket (url, NULL, filename, &ticket);
-      if (e)
-	return e;
+      status = get_ticket (url, NULL, filename, &ticket);
+      if (status)
+	return status;
 
       if (ticket)
 	{
-	  size_t n = 0;
-	  mu_url_get_user (ticket, NULL, 0, &n);
-
-	  if (n)
-	    {
-	      u = calloc (1, n + 1);
-	      mu_url_get_user (ticket, u, n + 1, NULL);
-	    }
+	  status = mu_url_aget_user (ticket, &u);
+          if (status && status != MU_ERR_NOENT)
+            return status;
 	  mu_url_destroy (&ticket);
 	}
     }
@@ -428,36 +420,28 @@ get_user (mu_url_t url, const char *filename, char **user)
 static int
 get_pass (mu_url_t url, const char *user, const char *filename, char **pass)
 {
+  int status;
   char *u = 0;
 
   if (url)
     {
-      size_t n = 0;
-      mu_url_get_passwd (url, NULL, 0, &n);
-
-      if (n)
-	{
-	  u = calloc (1, n + 1);
-	  mu_url_get_passwd (url, u, n + 1, NULL);
-	}
+      status = mu_url_aget_passwd (url, &u);
+      if (status && status != MU_ERR_NOENT)
+	return status;
     }
+
   if (!u && filename)
     {
       mu_url_t ticket = 0;
-      int e = get_ticket (url, user, filename, &ticket);
-      if (e)
-	return e;
+      status = get_ticket (url, user, filename, &ticket);
+      if (status)
+	return status;
 
       if (ticket)
 	{
-	  size_t n = 0;
-	  mu_url_get_passwd (ticket, NULL, 0, &n);
-
-	  if (n)
-	    {
-	      u = calloc (1, n + 1);
-	      mu_url_get_passwd (ticket, u, n + 1, NULL);
-	    }
+	  status = mu_url_aget_passwd (ticket, &u);
+          if (status && status != MU_ERR_NOENT)
+	    return status;
 	  mu_url_destroy (&ticket);
 	}
     }