folder.c
3.04 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_MH
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <dirent.h>
#include <url0.h>
#include <folder0.h>
#include <registrar0.h>
static int
_mh_folder_init (folder_t folder ARG_UNUSED)
{
return 0;
}
/* Check if NAME is a valid MH message name */
static int
mh_message_name_p (const char *name)
{
for ( ; *name; name++)
if (!isdigit (*name))
return 0;
return 1;
}
/* Check if directory NAME is a valid MH folder directory */
static int
mh_dir_p (const char *name)
{
DIR *dir;
struct dirent *entry;
int result = 0;
dir = opendir (name);
if (!dir)
return 1; /* Maybe yes */
while (!result && (entry = readdir (dir)))
{
switch (entry->d_name[0])
{
case '.':
result = strcmp (entry->d_name, ".mh_sequences") == 0;
break;
case ',':
result = mh_message_name_p (entry->d_name + 1);
break;
default:
result = mh_message_name_p (entry->d_name);
break;
}
}
closedir (dir);
return result;
}
static int
_mh_is_scheme (record_t record, const char *url)
{
if (!url || !record->scheme)
return 0;
if (strncmp (record->scheme, url, strlen (record->scheme)) == 0)
return 1;
if (strncmp (MU_PATH_SCHEME, url, MU_PATH_SCHEME_LEN) == 0)
{
/* Attemp auto-detection */
struct stat st;
if (stat (url, &st) < 0)
return 1; /* mailbox_open will complain */
if (!S_ISDIR (st.st_mode))
return 0;
return mh_dir_p (url);
}
return 0;
}
/*
MH url
mh:path
*/
static int
_mh_url_init (url_t url)
{
return amd_url_init (url, MU_MH_SCHEME);
}
static struct _record _mh_record =
{
MU_MH_SCHEME,
_mh_url_init, /* Url init. */
_mailbox_mh_init, /* Mailbox init. */
NULL, /* Mailer init. */
_mh_folder_init, /* Folder init. */
NULL, /* back pointer. */
_mh_is_scheme, /* _is_scheme method. */
NULL, /* _get_url method. */
NULL, /* _get_mailbox method. */
NULL, /* _get_mailer method. */
NULL /* _get_folder method. */
};
record_t mh_record = &_mh_record;
#else
#include <stdio.h>
#include <registrar0.h>
record_t mh_record = NULL;
#endif