This file is indexed.

/usr/include/mailutils/sys/imap.h is in libmailutils-dev 1:2.99.98-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 2010-2012 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/>. */

#ifndef _MAILUTILS_SYS_IMAP_H
# define _MAILUTILS_SYS_IMAP_H

# include <mailutils/sys/folder.h>
# include <mailutils/sys/mailbox.h>
# include <mailutils/sys/registrar.h>
# include <mailutils/sys/auth.h>
# include <mailutils/imapio.h>
# include <mailutils/imap.h>

# ifdef __cplusplus
extern "C" {
# endif

#define MU_IMAP_RESP  0x01
#define MU_IMAP_TRACE 0x02
#define MU_IMAP_XSCRIPT_MASK(n) (1<<((n)+1))
#define MU_IMAP_SET_XSCRIPT_MASK(imap,n)	\
  do						\
    (imap)->flags |= MU_IMAP_XSCRIPT_MASK (n);	\
  while (0)
#define MU_IMAP_CLR_XSCRIPT_MASK(imap,n)	\
  do						\
    (imap)->flags &= ~MU_IMAP_XSCRIPT_MASK (n);	\
  while (0)
#define MU_IMAP_IS_XSCRIPT_MASK(imap,n)         \
  ((imap)->flags & MU_IMAP_XSCRIPT_MASK (n))
  
enum mu_imap_client_state
  {
    MU_IMAP_CLIENT_READY,
    MU_IMAP_CLIENT_ERROR,
    MU_IMAP_CLIENT_CONNECT_RX,
    MU_IMAP_CLIENT_GREETINGS,
    MU_IMAP_CLIENT_CAPABILITY_RX,
    MU_IMAP_CLIENT_LOGIN_RX,
    MU_IMAP_CLIENT_LOGOUT_RX,
    MU_IMAP_CLIENT_ID_RX,
    MU_IMAP_CLIENT_SELECT_RX,
    MU_IMAP_CLIENT_STATUS_RX,
    MU_IMAP_CLIENT_NOOP_RX,
    MU_IMAP_CLIENT_FETCH_RX,
    MU_IMAP_CLIENT_STORE_RX,
    MU_IMAP_CLIENT_DELETE_RX,
    MU_IMAP_CLIENT_RENAME_RX,
    MU_IMAP_CLIENT_CLOSE_RX,
    MU_IMAP_CLIENT_UNSELECT_RX,
    MU_IMAP_CLIENT_CHECK_RX,
    MU_IMAP_CLIENT_COPY_RX,
    MU_IMAP_CLIENT_EXPUNGE_RX,
    MU_IMAP_CLIENT_APPEND_RX,
    MU_IMAP_CLIENT_LIST_RX,
    MU_IMAP_CLIENT_SUBSCRIBE_RX,
    MU_IMAP_CLIENT_UNSUBSCRIBE_RX,
    MU_IMAP_CLIENT_LSUB_RX,
    MU_IMAP_CLIENT_STARTTLS_RX,
    MU_IMAP_CLIENT_CLOSING
  };

enum mu_imap_response
  {
    MU_IMAP_OK,
    MU_IMAP_NO,
    MU_IMAP_BAD
  };
  
struct _mu_imap
  {
    int flags;

    /* Holds the recent response */
    enum mu_imap_response response;
    /* The recent response code */
    int response_code;
    
    /* Error string (if any) */
    char *errstr;
    size_t errsize;
    
    enum mu_imap_client_state client_state;
    enum mu_imap_session_state session_state;

    /* Tag */
    size_t tag_len;  /* Length of the command tag */
    int *tag_buf;    /* Tag number (BCD) */
    char *tag_str;   /* String representation (tag_len + 1 bytes, asciiz) */
    
    mu_list_t capa;
    mu_imapio_t io;

    char *mbox_name;  /* Name of the currently opened mailbox */
    int mbox_writable:1; /* Is it open read/write? */
    struct mu_imap_stat mbox_stat;  /* Stats obtained from it */

    /* Callbacks */
    struct
    {
      mu_imap_callback_t action;
      void *data;
    } callback[_MU_IMAP_CB_MAX];
};

enum imap_eltype
  {
    imap_eltype_string,
    imap_eltype_list
  };

struct imap_list_element
{
  enum imap_eltype type;
  union
  {
    mu_list_t list;
    char *string;
  } v;
};

#define MU_IMAP_FSET(p,f) ((p)->flags |= (f))
#define MU_IMAP_FISSET(p,f) ((p)->flags & (f))  
#define MU_IMAP_FCLR(p,f) ((p)->flags &= ~(f))

int _mu_imap_init (mu_imap_t imap);
int _mu_imap_trace_enable (mu_imap_t imap);
int _mu_imap_trace_disable (mu_imap_t imap);
int _mu_imap_xscript_level (mu_imap_t imap, int xlev);

typedef void (*mu_imap_response_action_t) (mu_imap_t imap, mu_list_t resp,
					   void *data);

struct imap_command
{
  int session_state;
  char *capa;
  int rx_state;
  int argc;
  char const **argv;
  char const *extra;
  mu_msgset_t msgset;
  void (*tagged_handler) (mu_imap_t);
  mu_imap_response_action_t untagged_handler;
  void *untagged_handler_data;
};

int mu_imap_gencom (mu_imap_t imap, struct imap_command *cmd);
  
/* If status indicates an error, return.
  */
#define MU_IMAP_CHECK_ERROR(imap, status)			\
  do								\
    {								\
      if (status != 0)						\
	{							\
          imap->client_state = MU_IMAP_CLIENT_ERROR;		\
          return status;					\
	}							\
    }								\
  while (0)

/* Check if status indicates an error.
   If the error is recoverable just return the status.
   Otherwise, set the error state and return the status
 */
#define MU_IMAP_CHECK_EAGAIN(imap, status)		\
  do							\
    {							\
      switch (status)					\
	{						\
        case 0:						\
	  break;					\
        case EAGAIN:					\
        case EINPROGRESS:				\
        case EINTR:					\
	  return status;				\
        case MU_ERR_REPLY:				\
        case MU_ERR_BADREPLY:				\
	  imap->client_state = MU_IMAP_CLIENT_READY;	\
	  return status;				\
        default:					\
          imap->client_state = MU_IMAP_CLIENT_ERROR;	\
	  return status;				\
	}						\
    }							\
  while (0)

int _mu_imap_seterrstr (mu_imap_t imap, const char *str, size_t len);
int _mu_imap_seterrstrz (mu_imap_t imap, const char *str);
void _mu_imap_clrerrstr (mu_imap_t imap);

int _mu_imap_tag_next (mu_imap_t imap);
int _mu_imap_tag_clr (mu_imap_t imap);


int _mu_imap_untagged_response_to_list (mu_imap_t imap, mu_list_t *plist);
int _mu_imap_process_untagged_response (mu_imap_t imap, mu_list_t list,
					mu_imap_response_action_t fun,
					void *data);
int _mu_imap_process_tagged_response (mu_imap_t imap, mu_list_t resp);
 
int _mu_imap_response (mu_imap_t imap, mu_imap_response_action_t fun,
		       void *data);
  
int _mu_imap_list_element_is_string (struct imap_list_element *elt,
				     const char *str);
int _mu_imap_list_element_is_nil (struct imap_list_element *elt);

int _mu_imap_list_nth_element_is_string (mu_list_t list, size_t n,
					 const char *str);
  
int _mu_imap_collect_flags (struct imap_list_element *arg, int *res);

struct imap_list_element *_mu_imap_list_at (mu_list_t list, int idx);
  
int _mu_imap_parse_fetch_response (mu_list_t resp, mu_list_t *result_list);

void _mu_close_handler (mu_imap_t imap);

/* ----------------------------- */
/* URL Auxiliaries               */
/* ----------------------------- */
int _mu_imap_url_init (mu_url_t url);
int _mu_imaps_url_init (mu_url_t url);

/* ----------------------------- */
/* Mailbox interface             */
/* ----------------------------- */

int _mu_imap_mailbox_init (mu_mailbox_t mailbox);

#define _MU_IMAP_MSG_SCANNED   0x01 /* Message has already been scanned */
#define _MU_IMAP_MSG_CACHED    0x02 /* Message is cached */
#define _MU_IMAP_MSG_LINES     0x04 /* Number of lines is computed */
#define _MU_IMAP_MSG_ATTRCHG   0x08 /* Message attributes has changed */

struct _mu_imap_message
{
  int flags;
  size_t uid;               /* Message UID */   
  int attr_flags;           /* Attributes */
  mu_off_t offset;          /* Offset in the message cache stream */
  mu_off_t body_start;      /* Start of message, relative to offset */
  mu_off_t body_end;        /* End of message, relative to offset */  
  size_t header_lines;      /* Number of lines in the header */
  size_t body_lines;        /* Number of lines in the body */
  size_t message_size;      /* Message size */
  size_t message_lines;     /* Number of lines in the message */
  struct mu_imapenvelope *env; /* IMAP envelope */
  mu_message_t message;     /* Pointer to the message structure */ 
  struct _mu_imap_mailbox *imbx; /* Back pointer.  */
};

#define _MU_IMAP_MBX_UPTODATE  0x01

struct _mu_imap_mailbox
{
  int flags;
  mu_off_t total_size;        /* Total mailbox size. */
  struct mu_imap_stat stats;     /* Mailbox statistics */ 
  struct _mu_imap_message *msgs; /* Array of messages */
  size_t msgs_cnt;               /* Number of used slots in msgs */
  size_t msgs_max;               /* Number of slots in msgs */
  mu_stream_t cache;          /* Message cache stream */
  int last_error;             /* Last error code */
  mu_mailbox_t mbox;
};

# ifdef __cplusplus
}
# endif

#endif /* _MAILUTILS_SYS_IMAP_H */