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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2003-2025 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 3 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, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <mailutils/cctype.h>
#include <mailutils/cstr.h>
#include <mailutils/sys/pop3.h>
#include <mailutils/util.h>
/* If we did not grap the ack already, call pop3_readline() but handle
Nonblocking also. */
int
mu_pop3_response (mu_pop3_t pop3, size_t *pnread)
{
size_t n = 0;
int status = 0;
if (pop3 == NULL)
return EINVAL;
if (!MU_POP3_FISSET (pop3, MU_POP3_ACK))
{
status = mu_stream_getline (pop3->carrier, &pop3->ackbuf,
&pop3->acksize, NULL);
if (status == 0)
{
n = mu_rtrim_class (pop3->ackbuf, MU_CTYPE_SPACE);
MU_POP3_FSET (pop3, MU_POP3_ACK); /* Flag that we have the ack. */
}
}
else if (pop3->ackbuf)
n = strlen (pop3->ackbuf);
if (n < 3)
status = MU_ERR_BADREPLY;
else if (strncmp (pop3->ackbuf, "-ERR", 4) == 0)
status = MU_ERR_REPLY;
else if (strncmp (pop3->ackbuf, "+OK", 3))
status = MU_ERR_BADREPLY;
if (pnread)
*pnread = n;
return status;
}
const char *
mu_pop3_strresp (mu_pop3_t pop3)
{
if (pop3 == NULL)
return NULL;
if (!MU_POP3_FISSET (pop3, MU_POP3_ACK))
return NULL;
return pop3->ackbuf;
}
int
mu_pop3_sget_response (mu_pop3_t pop3, const char **sptr)
{
if (pop3 == NULL)
return EINVAL;
if (!MU_POP3_FISSET (pop3, MU_POP3_ACK))
return MU_ERR_NOENT;
*sptr = pop3->ackbuf;
return 0;
}
int
mu_pop3_aget_response (mu_pop3_t pop3, char **sptr)
{
char *p;
if (pop3 == NULL)
return EINVAL;
if (!MU_POP3_FISSET (pop3, MU_POP3_ACK))
return MU_ERR_NOENT;
p = strdup (pop3->ackbuf);
if (!p)
return ENOMEM;
*sptr = p;
return 0;
}
int
mu_pop3_get_response (mu_pop3_t pop3, char *buf, size_t len, size_t *plen)
{
size_t size;
if (pop3 == NULL)
return EINVAL;
if (!MU_POP3_FISSET (pop3, MU_POP3_ACK))
return MU_ERR_NOENT;
size = mu_cpystr (buf, pop3->ackbuf, len);
if (plen)
*plen = size;
return 0;
}
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