Begin rewriting pop3 mailbox support. Several bugfixes.

* examples/pop3client.c (com_capa): Call mu_pop3_capa_test.
(com_stat): Count is size_t.

* include/mailutils/opool.h (mu_opool_copy): New proto.
* mailbox/opool.c (mu_opool_copy): New function.
* mailbox/xscript-stream.c (_xscript_ctl)
<MU_IOCTL_SWAP_STREAM>: Avoid coredumping if sp->transport
is NULL.

* include/mailutils/pop3.h (pop3_capa_test): Rename to
mu_pop3_capa_test.
(mu_pop3_stat): Third argument is a pointer to mu_off_t.
* libproto/pop/pop3_capatst.c (pop3_capa_test): Rename to
mu_pop3_capa_test.
* libproto/pop/pop3_stat.c (mu_pop3_stat): Third argument is
a pointer to mu_off_t.

* libproto/pop/Makefile.am (libmu_pop_la_SOURCES): Put back
folder.c, url.c and mbox.c.
* libproto/pop/mbox.c: Begin rewriting.

@@ -502,7 +502,7 @@ com_capa (int argc, char **argv)
       for (; i < argc; i++)
       for (; i < argc; i++)
 	{
 	{
 	  const char *elt;
 	  const char *elt;
-	  int rc = pop3_capa_test (pop3, argv[i], &elt);
+	  int rc = mu_pop3_capa_test (pop3, argv[i], &elt);
 	  switch (rc)
 	  switch (rc)
 	    {
 	    {
 	    case 0:
 	    case 0:
@@ -677,7 +677,7 @@ com_pass (int argc, char **argv)
 int
 int
 com_stat (int argc MU_ARG_UNUSED, char **argv MU_ARG_UNUSED)
 com_stat (int argc MU_ARG_UNUSED, char **argv MU_ARG_UNUSED)
 {
 {
-  unsigned count = 0;
+  size_t count = 0;
   size_t size = 0;
   size_t size = 0;
   int status = 0;
   int status = 0;
 
 

@@ -62,6 +62,10 @@ size_t mu_opool_size (mu_opool_t opool);
    mu_opool_create, above). */
    mu_opool_create, above). */
 int mu_opool_coalesce (mu_opool_t opool, size_t *psize);
 int mu_opool_coalesce (mu_opool_t opool, size_t *psize);
 
 
+/* Copy at most SIZE bytes of collected data into BUF.  Return the
+   actual number of bytes copied. */
+size_t mu_opool_copy (mu_opool_t opool, void *buf, size_t size);
+
 /* Return the pointer to the current object head chunk.  If mu_opool_coalesce 
 /* Return the pointer to the current object head chunk.  If mu_opool_coalesce 
    was called before, the returned value points to the entire object.
    was called before, the returned value points to the entire object.
    If PSIZE is not NULL, store the size of the head chunk to *PSIZE. */     
    If PSIZE is not NULL, store the size of the head chunk to *PSIZE. */     

@@ -59,8 +59,8 @@ int  mu_pop3_stls (mu_pop3_t pop3);
    done with the iterator.  The items returned by the iterator are of type
    done with the iterator.  The items returned by the iterator are of type
    "const char *", no processing is done on the item except the removal of
    "const char *", no processing is done on the item except the removal of
    the trailing newline.  */
    the trailing newline.  */
-int  mu_pop3_capa (mu_pop3_t pop3, int reread, mu_iterator_t *piter);
-int pop3_capa_test (mu_pop3_t pop3, const char *name, const char **pret);
+int mu_pop3_capa (mu_pop3_t pop3, int reread, mu_iterator_t *piter);
+int mu_pop3_capa_test (mu_pop3_t pop3, const char *name, const char **pret);
 
 
 int  mu_pop3_dele (mu_pop3_t pop3, unsigned int mesgno);
 int  mu_pop3_dele (mu_pop3_t pop3, unsigned int mesgno);
 
 
@@ -89,7 +89,7 @@ int  mu_pop3_retr (mu_pop3_t pop3, unsigned int mesgno,
 
 
 int  mu_pop3_rset (mu_pop3_t pop3);
 int  mu_pop3_rset (mu_pop3_t pop3);
 
 
-int  mu_pop3_stat (mu_pop3_t pop3, unsigned int *count, size_t *octets);
+int  mu_pop3_stat (mu_pop3_t pop3, size_t *count, mu_off_t *octets);
 
 
 /* A stream is returned with the multi-line answer.  It is the responsability
 /* A stream is returned with the multi-line answer.  It is the responsability
    of the caller to call mu_stream_destroy() to dipose of the stream.  */
    of the caller to call mu_stream_destroy() to dipose of the stream.  */

@@ -24,10 +24,10 @@ lib_LTLIBRARIES = libmu_pop.la
 libmu_pop_la_LDFLAGS=-version-info @VI_CURRENT@:@VI_REVISION@:@VI_AGE@
 libmu_pop_la_LDFLAGS=-version-info @VI_CURRENT@:@VI_REVISION@:@VI_AGE@
 libmu_pop_la_LIBADD = ${MU_LIB_AUTH} ${MU_LIB_MAILUTILS} @INTLLIBS@
 libmu_pop_la_LIBADD = ${MU_LIB_AUTH} ${MU_LIB_MAILUTILS} @INTLLIBS@
 
 
-#   folder.c\
-# url.c\
-#  mbox.c
 libmu_pop_la_SOURCES = \
 libmu_pop_la_SOURCES = \
+ mbox.c \
+ folder.c\
+ url.c\
  \
  \
  pop3_apop.c \
  pop3_apop.c \
  pop3_capa.c \
  pop3_capa.c \

@@ -26,7 +26,7 @@
 #include <mailutils/sys/pop3.h>
 #include <mailutils/sys/pop3.h>
 
 
 int
 int
-pop3_capa_test (mu_pop3_t pop3, const char *name, const char **pret)
+mu_pop3_capa_test (mu_pop3_t pop3, const char *name, const char **pret)
 {
 {
   int rc;
   int rc;
 
 

@@ -27,10 +27,10 @@
 #include <mailutils/sys/pop3.h>
 #include <mailutils/sys/pop3.h>
 
 
 int
 int
-mu_pop3_stat (mu_pop3_t pop3, unsigned *msg_count, size_t *size)
+mu_pop3_stat (mu_pop3_t pop3, size_t *msg_count, mu_off_t *size)
 {
 {
   int status;
   int status;
-  unsigned long lv;
+  unsigned long lv, count;
   
   
   if (pop3 == NULL || msg_count == NULL)
   if (pop3 == NULL || msg_count == NULL)
     return EINVAL;
     return EINVAL;
@@ -55,7 +55,8 @@ mu_pop3_stat (mu_pop3_t pop3, unsigned *msg_count, size_t *size)
       *msg_count = 0;
       *msg_count = 0;
       lv = 0;
       lv = 0;
       /* FIXME: Error checking */
       /* FIXME: Error checking */
-      sscanf (pop3->ackbuf, "+OK %d %lu", msg_count, &lv);
+      sscanf (pop3->ackbuf, "+OK %lu %lu", &count, &lv);
+      *msg_count = count;
       *size = lv;
       *size = lv;
       break;
       break;
 
 

@@ -205,6 +205,25 @@ mu_opool_size (mu_opool_t opool)
   return size;
   return size;
 }
 }
 
 
+size_t
+mu_opool_copy (mu_opool_t opool, void *buf, size_t size)
+{
+  char *cp = buf;
+  size_t total = 0;
+  struct mu_opool_bucket *p;
+  
+  for (p = opool->head; p && total < size; p = p->next)
+    {
+      size_t cpsize = size - total;
+      if (cpsize > p->level)
+	cpsize = p->level;
+      memcpy (cp, p->buf, cpsize);
+      cp += cpsize;
+      total += cpsize;
+    }
+  return total;
+}
+
 int
 int
 mu_opool_coalesce (mu_opool_t opool, size_t *psize)
 mu_opool_coalesce (mu_opool_t opool, size_t *psize)
 {
 {

@@ -201,7 +201,10 @@ _xscript_ctl (struct _mu_stream *str, int op, void *arg)
     case MU_IOCTL_SWAP_STREAM:
     case MU_IOCTL_SWAP_STREAM:
       if (!arg)
       if (!arg)
 	return EINVAL;
 	return EINVAL;
-      status = mu_stream_ioctl (sp->transport, op, arg);
+      if (!sp->transport)
+	status = ENOSYS;
+      else
+	status = mu_stream_ioctl (sp->transport, op, arg);
       if (status == EINVAL || status == ENOSYS)
       if (status == EINVAL || status == ENOSYS)
 	{
 	{
 	  mu_stream_t *pstr = arg;
 	  mu_stream_t *pstr = arg;