top.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2005, 2007, 2010 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, see <http://www.gnu.org/licenses/>. */
#include "pop3d.h"
/* Prints the header of a message plus a specified number of lines. */
int
pop3d_top (char *arg)
{
size_t mesgno;
unsigned long lines;
mu_message_t msg;
mu_attribute_t attr;
mu_header_t hdr;
mu_body_t body;
mu_stream_t stream;
char *mesgc, *linesc, *p;
int xscript_level;
struct mu_buffer_query oldbuf, newbuf;
if (strlen (arg) == 0)
return ERR_BAD_ARGS;
if (state != TRANSACTION)
return ERR_WRONG_STATE;
pop3d_parse_command (arg, &mesgc, &linesc);
if (linesc[0] == 0)
return ERR_BAD_ARGS;
mesgno = strtoul (mesgc, &p, 10);
if (*p)
return ERR_BAD_ARGS;
lines = strtoul (linesc, &p, 10);
if (*p)
return ERR_BAD_ARGS;
if (mu_mailbox_get_message (mbox, mesgno, &msg) != 0)
return ERR_NO_MESG;
mu_message_get_attribute (msg, &attr);
if (pop3d_is_deleted (attr))
return ERR_MESG_DELE;
pop3d_mark_retr (attr);
/* Header. */
mu_message_get_header (msg, &hdr);
if (mu_header_get_streamref (hdr, &stream))
return ERR_UNKNOWN;
pop3d_outf ("+OK\n");
xscript_level = set_xscript_level (MU_XSCRIPT_PAYLOAD);
oldbuf.type = MU_TRANSPORT_OUTPUT;
mu_stream_ioctl (iostream, MU_IOCTL_GET_TRANSPORT_BUFFER,
&oldbuf);
newbuf.type = MU_TRANSPORT_OUTPUT;
newbuf.buftype = mu_buffer_full;
newbuf.bufsize = pop3d_output_bufsize;
mu_stream_ioctl (iostream, MU_IOCTL_SET_TRANSPORT_BUFFER,
&newbuf);
mu_stream_copy (iostream, stream, 0, NULL);
pop3d_outf ("\n");
mu_stream_destroy (&stream);
mu_message_get_body (msg, &body);
if (mu_body_get_streamref (body, &stream) == 0)
{
char *buf = NULL;
size_t size = 0, n;
for (; lines > 0 &&
mu_stream_getline (stream, &buf, &size, &n) == 0 &&
n > 0; lines--)
{
if (buf[0] == '.')
pop3d_outf (".");
pop3d_outf ("%s", buf);
}
mu_stream_destroy (&stream);
free (buf);
}
pop3d_outf (".\n");
mu_stream_ioctl (iostream, MU_IOCTL_SET_TRANSPORT_BUFFER,
&oldbuf);
set_xscript_level (xscript_level);
return OK;
}