summaryrefslogtreecommitdiff
path: root/mailbox/nntp/nntp_post.c
blob: 5be9400962efccc0d7cac2d03a8de77e3f4aafc3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001, 2004 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., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301 USA */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <mailutils/sys/nntp.h>

int
mu_nntp_post (mu_nntp_t nntp, stream_t stream)
{
  int status;

  if (nntp == NULL)
    return EINVAL;

  switch (nntp->state)
    {
    case MU_NNTP_NO_STATE:
      status = mu_nntp_writeline (nntp, "POST\r\n");
      MU_NNTP_CHECK_ERROR (nntp, status);
      mu_nntp_debug_cmd (nntp);
      nntp->state = MU_NNTP_POST;

    case MU_NNTP_POST:
      status = mu_nntp_send (nntp);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      nntp->acknowledge = 0;
      nntp->state = MU_NNTP_POST_ACK;

    case MU_NNTP_POST_ACK:
      status = mu_nntp_response (nntp, NULL, 0, NULL);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      mu_nntp_debug_ack (nntp);
      MU_NNTP_CHECK_CODE (nntp, MU_NNTP_RESP_CODE_SEND_ARTICLE);
      if (nntp->post.buf != NULL)
	{
	  free (nntp->post.buf);
	}
      nntp->post.buf = calloc (1, 256);
      if (nntp->post.buf == NULL)
	{
	  MU_NNTP_CHECK_ERROR (nntp, ENOMEM);
	}
      nntp->post.len = 256;
      nntp->post.offset = 0;
      nntp->post.nread = 0;
      nntp->post.sent_crlf = 0;
      nntp->state = MU_NNTP_POST_0;

    post_loop:
    case MU_NNTP_POST_0:
      status = stream_readline (stream, nntp->post.buf, nntp->post.len, nntp->post.offset, &(nntp->post.nread));
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      nntp->post.offset += nntp->post.nread;
      if  (nntp->post.nread > 0)
	{
	  if (nntp->post.buf[nntp->post.nread - 1] == '\n')
	    {
	      nntp->post.buf[nntp->post.nread - 1] = '\0';
	      if (nntp->post.sent_crlf && nntp->post.buf[0] == '.')
		{
		  status = mu_nntp_writeline (nntp, ".%s\r\n", nntp->post.buf);
		}
	      else
		{
		  status = mu_nntp_writeline (nntp, "%s\r\n", nntp->post.buf);
		}
	      nntp->post.sent_crlf = 1;
	    }
	  else
	    {
	      if (nntp->post.sent_crlf && nntp->post.buf[0] == '.')
		{
		  status = mu_nntp_writeline (nntp, ".%s", nntp->post.buf);
		}
	      else
		{
		  status = mu_nntp_writeline (nntp, "%s", nntp->post.buf);
		}
	      nntp->post.sent_crlf = 0;
	    }
	  MU_NNTP_CHECK_ERROR (nntp, status);
	}
      nntp->state = MU_NNTP_POST_1;

    case MU_NNTP_POST_1:
      status = mu_nntp_send (nntp);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      if (nntp->post.nread > 0)
	{
	  goto post_loop;
	}
      if (nntp->post.sent_crlf)
	status = mu_nntp_writeline (nntp, ".\r\n");
      else
	status = mu_nntp_writeline (nntp, "\r\n.\r\n");
      if (nntp->post.buf != NULL)
	{
	  free (nntp->post.buf);
	  nntp->post.buf = NULL;
	  nntp->post.len = 0;
	  nntp->post.offset = 0;
	  nntp->post.nread = 0;
	  nntp->post.sent_crlf = 0;
	}
      MU_NNTP_CHECK_ERROR (nntp, status);
      nntp->state = MU_NNTP_POST_2;

    case MU_NNTP_POST_2:
      status = mu_nntp_send (nntp);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      nntp->state = MU_NNTP_POST_3;

    case MU_NNTP_POST_3:
      status = mu_nntp_response (nntp, NULL, 0, NULL);
      MU_NNTP_CHECK_EAGAIN (nntp, status);
      mu_nntp_debug_ack (nntp);
      MU_NNTP_CHECK_CODE (nntp, MU_NNTP_RESP_CODE_ARTICLE_RECEIVED);
      nntp->state = MU_NNTP_NO_STATE;
      break;

      /* They must deal with the error first by reopening.  */
    case MU_NNTP_ERROR:
      status = ECANCELED;
      break;

    default:
      status = EINPROGRESS;
    }

  return status;
}

Return to:

Send suggestions and report system problems to the System administrator.