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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2001, 2007, 2008, 2009 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Mailutils 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA */
#include "imap4d.h"
struct scan_data
{
int result;
char *name;
FILE *tmp;
};
static int
scan_mailbox_list (char *filename,
int (*handler) (struct scan_data *data, char *name),
struct scan_data *data)
{
FILE *fp;
char buffer[124];
fp = fopen (filename, "r");
if (!fp)
return -1;
while (fgets (buffer, sizeof (buffer), fp))
{
size_t n = strlen (buffer);
if (n && buffer[n - 1] == '\n')
buffer[n - 1] = '\0';
if (handler (data, buffer))
break;
}
fclose (fp);
return 0;
}
static int
scan_only (struct scan_data *data, char *name)
{
if (strcmp (data->name, name) == 0)
{
data->result = 1;
return 1;
}
return 0;
}
static int
unsubscribe (struct scan_data *data, char *name)
{
if (strcmp (data->name, name))
{
fputs (name, data->tmp);
fputs ("\n", data->tmp);
}
return 0;
}
/*
6.3.7. UNSUBSCRIBE Command
Arguments: mailbox name
Responses: no specific responses for this command
Result: OK - unsubscribe completed
NO - unsubscribe failure: can't unsubscribe that name
BAD - command unknown or arguments invalid
The UNSUBSCRIBE command removes the specified mailbox name from
the server's set of "active" or "subscribed" mailboxes as returned
by the LSUB command. This command returns a tagged OK response
only if the unsubscription is successful.
*/
int
imap4d_unsubscribe (struct imap4d_command *command, imap4d_tokbuf_t tok)
{
char *name;
char *file;
struct scan_data sd;
int rc;
if (imap4d_tokbuf_argc (tok) != 3)
return util_finish (command, RESP_BAD, "Invalid arguments");
name = imap4d_tokbuf_getarg (tok, IMAP4_ARG_1);
asprintf (&file, "%s/.mailboxlist", real_homedir);
sd.result = 0;
sd.name = name;
rc = scan_mailbox_list (file, scan_only, &sd);
if (rc == 0)
{
if (sd.result)
{
char *tmpname = NULL;
asprintf (&tmpname, "%s.%d", file, getpid ());
sd.tmp = fopen (tmpname, "a");
if (!sd.tmp)
rc = -1;
else
{
rc = scan_mailbox_list (file, unsubscribe, &sd);
fclose (sd.tmp);
if (rc == 0)
rename (tmpname, file);
}
free (tmpname);
}
}
free (file);
if (rc)
return util_finish (command, RESP_NO, "Cannot unsubscribe");
return util_finish (command, RESP_OK, "Completed");
}
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