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1 /* ========================================================================
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2 * Copyright 1988-2007 University of Washington
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3 *
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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7 *
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8 * http://www.apache.org/licenses/LICENSE-2.0
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9 *
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10 *
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11 * ========================================================================
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12 */
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13
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14 /*
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15 * Program: MBX mail routines
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16 *
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17 * Author: Mark Crispin
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18 * Networks and Distributed Computing
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19 * Computing & Communications
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20 * University of Washington
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21 * Administration Building, AG-44
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22 * Seattle, WA 98195
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23 * Internet: MRC@CAC.Washington.EDU
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24 *
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25 * Date: 3 October 1995
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26 * Last Edited: 28 September 2007
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27 */
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28
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29
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30 /* FILE TIME SEMANTICS
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31 *
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32 * The atime is the last read time of the file.
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33 * The mtime is the last flags update time of the file.
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34 * The ctime is the last write time of the file.
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35 */
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36
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37 #include <stdio.h>
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38 #include <ctype.h>
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39 #include <errno.h>
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40 extern int errno; /* just in case */
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41 #include "mail.h"
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42 #include "osdep.h"
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43 #include <fcntl.h>
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44 #include <time.h>
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45 #include <sys/stat.h>
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46 #include <sys/utime.h>
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47 #include "misc.h"
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48 #include "dummy.h"
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49 #include "fdstring.h"
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50
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51
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52 /* Build parameters */
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53
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54 #define HDRSIZE 2048
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55
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56 /* MBX I/O stream local data */
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57
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58 typedef struct mbx_local {
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59 unsigned int flagcheck: 1; /* if ping should sweep for flags */
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60 unsigned int expok: 1; /* if expunging OK in ping */
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61 unsigned int expunged : 1; /* if one or more expunged messages */
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62 int fd; /* file descriptor for I/O */
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63 int ld; /* lock file descriptor */
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64 int ffuserflag; /* first free user flag */
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65 off_t filesize; /* file size parsed */
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66 time_t filetime; /* last file time */
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67 time_t lastsnarf; /* last snarf time */
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68 unsigned char *buf; /* temporary buffer */
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69 unsigned long buflen; /* current size of temporary buffer */
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70 char lock[MAILTMPLEN]; /* buffer to write lock name */
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71 } MBXLOCAL;
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72
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73
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74 /* Convenient access to local data */
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75
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76 #define LOCAL ((MBXLOCAL *) stream->local)
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77
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78 /* Function prototypes */
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79
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80 DRIVER *mbx_valid (char *name);
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81 int mbx_isvalid (MAILSTREAM **stream,char *name,char *file,int *ld,char *lock,
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82 long flags);
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83 void *mbx_parameters (long function,void *value);
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84 void mbx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
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85 void mbx_list (MAILSTREAM *stream,char *ref,char *pat);
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86 void mbx_lsub (MAILSTREAM *stream,char *ref,char *pat);
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87 long mbx_create (MAILSTREAM *stream,char *mailbox);
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88 long mbx_delete (MAILSTREAM *stream,char *mailbox);
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89 long mbx_rename (MAILSTREAM *stream,char *old,char *newname);
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90 long mbx_status (MAILSTREAM *stream,char *mbx,long flags);
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91 MAILSTREAM *mbx_open (MAILSTREAM *stream);
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92 void mbx_close (MAILSTREAM *stream,long options);
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93 void mbx_abort (MAILSTREAM *stream);
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94 void mbx_flags (MAILSTREAM *stream,char *sequence,long flags);
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95 char *mbx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
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96 long flags);
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97 long mbx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags);
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98 void mbx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags);
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99 void mbx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt);
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100 long mbx_ping (MAILSTREAM *stream);
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101 void mbx_check (MAILSTREAM *stream);
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102 long mbx_expunge (MAILSTREAM *stream,char *sequence,long options);
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103 void mbx_snarf (MAILSTREAM *stream);
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104 long mbx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
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105 long mbx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
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106
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107 long mbx_parse (MAILSTREAM *stream);
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108 MESSAGECACHE *mbx_elt (MAILSTREAM *stream,unsigned long msgno,long expok);
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109 unsigned long mbx_read_flags (MAILSTREAM *stream,MESSAGECACHE *elt);
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110 void mbx_update_header (MAILSTREAM *stream);
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111 void mbx_update_status (MAILSTREAM *stream,unsigned long msgno,long flags);
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112 unsigned long mbx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
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113 unsigned long *size,char **hdr);
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114 unsigned long mbx_rewrite (MAILSTREAM *stream,unsigned long *reclaimed,
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115 long flags);
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116 long mbx_flaglock (MAILSTREAM *stream);
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117
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118 /* MBX mail routines */
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119
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120
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121 /* Driver dispatch used by MAIL */
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122
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123 DRIVER mbxdriver = {
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124 "mbx", /* driver name */
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125 DR_LOCAL|DR_MAIL|DR_CRLF|DR_LOCKING,
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126 /* driver flags */
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127 (DRIVER *) NIL, /* next driver */
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128 mbx_valid, /* mailbox is valid for us */
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129 mbx_parameters, /* manipulate parameters */
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130 mbx_scan, /* scan mailboxes */
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131 mbx_list, /* list mailboxes */
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132 mbx_lsub, /* list subscribed mailboxes */
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133 NIL, /* subscribe to mailbox */
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134 NIL, /* unsubscribe from mailbox */
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135 mbx_create, /* create mailbox */
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136 mbx_delete, /* delete mailbox */
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137 mbx_rename, /* rename mailbox */
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138 mail_status_default, /* status of mailbox */
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139 mbx_open, /* open mailbox */
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140 mbx_close, /* close mailbox */
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141 mbx_flags, /* fetch message "fast" attributes */
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142 mbx_flags, /* fetch message flags */
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143 NIL, /* fetch overview */
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144 NIL, /* fetch message envelopes */
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145 mbx_header, /* fetch message header */
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146 mbx_text, /* fetch message body */
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147 NIL, /* fetch partial message text */
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148 NIL, /* unique identifier */
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149 NIL, /* message number */
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150 mbx_flag, /* modify flags */
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151 mbx_flagmsg, /* per-message modify flags */
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152 NIL, /* search for message based on criteria */
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153 NIL, /* sort messages */
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154 NIL, /* thread messages */
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155 mbx_ping, /* ping mailbox to see if still alive */
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156 mbx_check, /* check for new messages */
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157 mbx_expunge, /* expunge deleted messages */
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158 mbx_copy, /* copy messages to another mailbox */
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159 mbx_append, /* append string message to mailbox */
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160 NIL /* garbage collect stream */
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161 };
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162
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163 /* prototype stream */
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164 MAILSTREAM mbxproto = {&mbxdriver};
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165
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166 /* MBX mail validate mailbox
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167 * Accepts: mailbox name
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168 * Returns: our driver if name is valid, NIL otherwise
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169 */
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170
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171 DRIVER *mbx_valid (char *name)
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172 {
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173 char tmp[MAILTMPLEN];
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174 int fd = mbx_isvalid (NIL,name,tmp,NIL,NIL,NIL);
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175 if (fd < 0) return NIL;
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176 close (fd); /* don't need the fd now */
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177 return &mbxdriver;
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178 }
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179
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180
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181 /* MBX mail test for valid mailbox
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182 * Accepts: returned stream with valid mailbox keywords
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183 * mailbox name
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184 * buffer to write file name
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185 * returned lock fd
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186 * returned lock name
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187 * RW flags or NIL for readonly
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188 * Returns: file descriptor if valid, NIL otherwise
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189 */
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190
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191 #define MBXISVALIDNOUID 0x1 /* RW, don't do UID action */
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192 #define MBXISVALIDUID 0x2 /* RW, do UID action */
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193
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194 int mbx_isvalid (MAILSTREAM **stream,char *name,char *file,int *ld,char *lock,
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195 long flags)
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196 {
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197 int fd,upd;
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198 int ret = -1;
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199 unsigned long i;
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200 long j,k;
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201 off_t pos;
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202 char c,*s,*t,hdr[HDRSIZE];
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203 struct stat sbuf;
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204 struct utimbuf times;
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205 int error = EINVAL; /* assume invalid argument */
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206 if (ld) *ld = -1; /* initially no lock */
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207 /* if file, get its status */
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208 if ((s = dummy_file (file,name)) && !stat (s,&sbuf) &&
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209 ((sbuf.st_mode & S_IFMT) == S_IFREG) &&
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210 ((fd = open (file,(flags ? O_RDWR : O_RDONLY)|O_BINARY,NIL)) >= 0)) {
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211 error = -1; /* assume bogus format */
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212 if (((((j = read (fd,hdr,HDRSIZE)) == HDRSIZE) && (hdr[0] == '*')) ||
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213 /* locked, set byte 0 to "*", read rest */
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214 ((j < 0) && (lseek (fd,1,L_SET) == 1) &&
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215 (read (fd,hdr+1,HDRSIZE-1) == (HDRSIZE-1)) && (hdr[0] = '*'))) &&
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216 (hdr[1] == 'm') && (hdr[2] == 'b') && (hdr[3] == 'x') &&
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217 (hdr[4] == '*') && (hdr[5] == '\015') && (hdr[6] == '\012') &&
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218 isxdigit (hdr[7]) && isxdigit (hdr[8]) && isxdigit (hdr[9]) &&
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219 isxdigit (hdr[10]) && isxdigit (hdr[11]) && isxdigit (hdr[12]) &&
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220 isxdigit (hdr[13]) && isxdigit (hdr[14]) && isxdigit (c = hdr[15]) &&
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221 isxdigit (hdr[16]) && isxdigit (hdr[17]) && isxdigit (hdr[18]) &&
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222 isxdigit (hdr[19]) && isxdigit (hdr[20]) && isxdigit (hdr[21]) &&
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223 isxdigit (hdr[22]) && (hdr[23] == '\015') && (hdr[24] == '\012')) {
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224 ret = fd; /* mbx format */
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225
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226 if (stream) { /* lock if making a mini-stream */
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227 if (flock (fd,LOCK_SH) ||
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228 (flags && ((*ld = lockname (lock,file,LOCK_EX)) < 0))) ret = -1;
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229 /* reread data now that locked */
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230 else if (lseek (fd,0,L_SET) ||
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231 (read (fd,hdr+1,HDRSIZE-1) != (HDRSIZE-1))) ret = -1;
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232 else {
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233 *stream = (MAILSTREAM *) memset (fs_get (sizeof (MAILSTREAM)),0,
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234 sizeof (MAILSTREAM));
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235 hdr[15] = '\0'; /* tie off UIDVALIDITY */
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236 (*stream)->uid_validity = strtoul (hdr+7,NIL,16);
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237 hdr[15] = c; /* now get UIDLAST */
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238 (*stream)->uid_last = strtoul (hdr+15,NIL,16);
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239 /* parse user flags */
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240 for (i = 0, s = hdr + 25;
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241 (i < NUSERFLAGS) && (t = strchr (s,'\015')) && (t - s);
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242 i++, s = t + 2) {
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243 *t = '\0'; /* tie off flag */
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244 if (strlen (s) <= MAXUSERFLAG)
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245 (*stream)->user_flags[i] = cpystr (s);
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246 }
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247 /* make sure have true UIDLAST */
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248 if (flags & MBXISVALIDUID) {
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249 for (upd = NIL,pos = 2048, k = 0; pos < sbuf.st_size;
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250 pos += (j + k)) {
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251 /* read header for this message */
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252 lseek (fd,pos,L_SET);
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253 if ((j = read (fd,hdr,64)) >= 0) {
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254 hdr[j] = '\0';
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255 if ((s = strchr (hdr,'\015')) && (s[1] == '\012')) {
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256 *s = '\0';
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257 k = s + 2 - hdr;
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258 if ((s = strchr (hdr,',')) && (j = strtol (s+1,&s,10)) &&
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259 (*s == ';') && (s = strchr (s+1,'-'))) {
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260 /* get UID if there is any */
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261 i = strtoul (++s,&t,16);
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262 if (!*t && (t == (s + 8)) && (i <= (*stream)->uid_last)) {
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263 if (!i) {
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264 lseek (fd,pos + s - hdr,L_SET);
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265 sprintf (hdr,"%08lx",++(*stream)->uid_last);
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266 write (fd,hdr,8);
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267 upd = T;
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268 }
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269 continue;
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270 }
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271 }
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272 }
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273 ret = -1; /* error, give up */
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274 *stream = mail_close (*stream);
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275 pos = sbuf.st_size + 1;
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276 j = k = 0;
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277 }
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278 }
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279
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280 if (upd) { /* need to update hdr with new UIDLAST? */
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281 lseek (fd,15,L_SET);
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282 sprintf (hdr,"%08lx",(*stream)->uid_last);
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283 write (fd,hdr,8);
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284 }
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285 }
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286 }
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287 }
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288 }
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289 if (ret != fd) close (fd); /* close the file */
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290 else lseek (fd,0,L_SET); /* else rewind to start */
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291 /* \Marked status? */
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292 if (sbuf.st_ctime > sbuf.st_atime) {
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293 /* preserve atime and mtime */
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294 times.actime = sbuf.st_atime;
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295 times.modtime = sbuf.st_mtime;
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296 utime (file,×); /* set the times */
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297 }
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298 }
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299 /* in case INBOX but not mbx format */
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300 else if (((error = errno) == ENOENT) && !compare_cstring (name,"INBOX"))
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301 error = -1;
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302 if ((ret < 0) && ld && (*ld >= 0)) {
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303 unlockfd (*ld,lock);
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304 *ld = -1;
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305 }
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306 errno = error; /* return as last error */
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307 return ret; /* return what we should */
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308 }
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309
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310 /* MBX manipulate driver parameters
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311 * Accepts: function code
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312 * function-dependent value
|
yuuji@0
|
313 * Returns: function-dependent return value
|
yuuji@0
|
314 */
|
yuuji@0
|
315
|
yuuji@0
|
316 void *mbx_parameters (long function,void *value)
|
yuuji@0
|
317 {
|
yuuji@0
|
318 void *ret = NIL;
|
yuuji@0
|
319 switch ((int) function) {
|
yuuji@0
|
320 case SET_ONETIMEEXPUNGEATPING:
|
yuuji@0
|
321 if (value) ((MBXLOCAL *) ((MAILSTREAM *) value)->local)->expok = T;
|
yuuji@0
|
322 case GET_ONETIMEEXPUNGEATPING:
|
yuuji@0
|
323 if (value) ret = (void *)
|
yuuji@0
|
324 (((MBXLOCAL *) ((MAILSTREAM *) value)->local)->expok ? VOIDT : NIL);
|
yuuji@0
|
325 break;
|
yuuji@0
|
326 }
|
yuuji@0
|
327 return ret;
|
yuuji@0
|
328 }
|
yuuji@0
|
329
|
yuuji@0
|
330
|
yuuji@0
|
331 /* MBX mail scan mailboxes
|
yuuji@0
|
332 * Accepts: mail stream
|
yuuji@0
|
333 * reference
|
yuuji@0
|
334 * pattern to search
|
yuuji@0
|
335 * string to scan
|
yuuji@0
|
336 */
|
yuuji@0
|
337
|
yuuji@0
|
338 void mbx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
|
yuuji@0
|
339 {
|
yuuji@0
|
340 if (stream) dummy_scan (NIL,ref,pat,contents);
|
yuuji@0
|
341 }
|
yuuji@0
|
342
|
yuuji@0
|
343
|
yuuji@0
|
344 /* MBX mail list mailboxes
|
yuuji@0
|
345 * Accepts: mail stream
|
yuuji@0
|
346 * reference
|
yuuji@0
|
347 * pattern to search
|
yuuji@0
|
348 */
|
yuuji@0
|
349
|
yuuji@0
|
350 void mbx_list (MAILSTREAM *stream,char *ref,char *pat)
|
yuuji@0
|
351 {
|
yuuji@0
|
352 if (stream) dummy_list (NIL,ref,pat);
|
yuuji@0
|
353 }
|
yuuji@0
|
354
|
yuuji@0
|
355
|
yuuji@0
|
356 /* MBX mail list subscribed mailboxes
|
yuuji@0
|
357 * Accepts: mail stream
|
yuuji@0
|
358 * reference
|
yuuji@0
|
359 * pattern to search
|
yuuji@0
|
360 */
|
yuuji@0
|
361
|
yuuji@0
|
362 void mbx_lsub (MAILSTREAM *stream,char *ref,char *pat)
|
yuuji@0
|
363 {
|
yuuji@0
|
364 if (stream) dummy_lsub (NIL,ref,pat);
|
yuuji@0
|
365 }
|
yuuji@0
|
366
|
yuuji@0
|
367 /* MBX mail create mailbox
|
yuuji@0
|
368 * Accepts: MAIL stream
|
yuuji@0
|
369 * mailbox name to create
|
yuuji@0
|
370 * Returns: T on success, NIL on failure
|
yuuji@0
|
371 */
|
yuuji@0
|
372
|
yuuji@0
|
373 long mbx_create (MAILSTREAM *stream,char *mailbox)
|
yuuji@0
|
374 {
|
yuuji@0
|
375 char *s,mbx[MAILTMPLEN],tmp[HDRSIZE];
|
yuuji@0
|
376 long ret = NIL;
|
yuuji@0
|
377 int i,fd;
|
yuuji@0
|
378 if (!(s = dummy_file (mbx,mailbox))) {
|
yuuji@0
|
379 sprintf (mbx,"Can't create %.80s: invalid name",mailbox);
|
yuuji@0
|
380 mm_log (mbx,ERROR);
|
yuuji@0
|
381 }
|
yuuji@0
|
382 /* create underlying file */
|
yuuji@0
|
383 else if (dummy_create (stream,s)) {
|
yuuji@0
|
384 /* done if made directory */
|
yuuji@0
|
385 if ((s = strrchr (s,'\\')) && !s[1]) return T;
|
yuuji@0
|
386 if ((fd = open (mbx,O_WRONLY|O_BINARY,NIL)) < 0) {
|
yuuji@0
|
387 sprintf (tmp,"Can't reopen mailbox node %.80s: %s",mbx,strerror (errno));
|
yuuji@0
|
388 mm_log (tmp,ERROR);
|
yuuji@0
|
389 unlink (mbx); /* delete the file */
|
yuuji@0
|
390 }
|
yuuji@0
|
391 else {
|
yuuji@0
|
392 memset (tmp,'\0',HDRSIZE);/* initialize header */
|
yuuji@0
|
393 sprintf (s = tmp,"*mbx*\015\012%08lx00000000\015\012",
|
yuuji@0
|
394 (unsigned long) time (0));
|
yuuji@0
|
395 for (i = 0; i < NUSERFLAGS; ++i)
|
yuuji@0
|
396 sprintf (s += strlen (s),"%s\015\012",
|
yuuji@0
|
397 (stream && stream->user_flags[i]) ? stream->user_flags[i] :
|
yuuji@0
|
398 "");
|
yuuji@0
|
399 if (write (fd,tmp,HDRSIZE) != HDRSIZE) {
|
yuuji@0
|
400 sprintf (tmp,"Can't initialize mailbox node %.80s: %s",
|
yuuji@0
|
401 mbx,strerror (errno));
|
yuuji@0
|
402 mm_log (tmp,ERROR);
|
yuuji@0
|
403 unlink (mbx); /* delete the file */
|
yuuji@0
|
404 }
|
yuuji@0
|
405 else ret = T; /* success */
|
yuuji@0
|
406 close (fd); /* close file */
|
yuuji@0
|
407 }
|
yuuji@0
|
408 }
|
yuuji@0
|
409 return ret;
|
yuuji@0
|
410 }
|
yuuji@0
|
411
|
yuuji@0
|
412
|
yuuji@0
|
413 /* MBX mail delete mailbox
|
yuuji@0
|
414 * Accepts: MAIL stream
|
yuuji@0
|
415 * mailbox name to delete
|
yuuji@0
|
416 * Returns: T on success, NIL on failure
|
yuuji@0
|
417 */
|
yuuji@0
|
418
|
yuuji@0
|
419 long mbx_delete (MAILSTREAM *stream,char *mailbox)
|
yuuji@0
|
420 {
|
yuuji@0
|
421 return mbx_rename (stream,mailbox,NIL);
|
yuuji@0
|
422 }
|
yuuji@0
|
423
|
yuuji@0
|
424 /* MBX mail rename mailbox
|
yuuji@0
|
425 * Accepts: MAIL stream
|
yuuji@0
|
426 * old mailbox name
|
yuuji@0
|
427 * new mailbox name (or NIL for delete)
|
yuuji@0
|
428 * Returns: T on success, NIL on failure
|
yuuji@0
|
429 */
|
yuuji@0
|
430
|
yuuji@0
|
431 long mbx_rename (MAILSTREAM *stream,char *old,char *newname)
|
yuuji@0
|
432 {
|
yuuji@0
|
433 long ret = LONGT;
|
yuuji@0
|
434 char c,*s,tmp[MAILTMPLEN],file[MAILTMPLEN],lock[MAILTMPLEN];
|
yuuji@0
|
435 int fd,ld;
|
yuuji@0
|
436 struct stat sbuf;
|
yuuji@0
|
437 if (!dummy_file (file,old) ||
|
yuuji@0
|
438 (newname && (!((s = mailboxfile (tmp,newname)) && *s) ||
|
yuuji@0
|
439 ((s = strrchr (tmp,'\\')) && !s[1])))) {
|
yuuji@0
|
440 sprintf (tmp,newname ?
|
yuuji@0
|
441 "Can't rename mailbox %.80s to %.80s: invalid name" :
|
yuuji@0
|
442 "Can't delete mailbox %.80s: invalid name",
|
yuuji@0
|
443 old,newname);
|
yuuji@0
|
444 mm_log (tmp,ERROR);
|
yuuji@0
|
445 return NIL;
|
yuuji@0
|
446 }
|
yuuji@0
|
447 else if ((fd = open (file,O_RDWR|O_BINARY,NIL)) < 0) {
|
yuuji@0
|
448 sprintf (tmp,"Can't open mailbox %.80s: %s",old,strerror (errno));
|
yuuji@0
|
449 mm_log (tmp,ERROR);
|
yuuji@0
|
450 return NIL;
|
yuuji@0
|
451 }
|
yuuji@0
|
452 /* get parse/append permission */
|
yuuji@0
|
453 if ((ld = lockname (lock,file,LOCK_EX)) < 0) {
|
yuuji@0
|
454 mm_log ("Unable to lock rename mailbox",ERROR);
|
yuuji@0
|
455 return NIL;
|
yuuji@0
|
456 }
|
yuuji@0
|
457 /* lock out other users */
|
yuuji@0
|
458 if (flock (fd,LOCK_EX|LOCK_NB)) {
|
yuuji@0
|
459 close (fd); /* couldn't lock, give up on it then */
|
yuuji@0
|
460 sprintf (tmp,"Mailbox %.80s is in use by another process",old);
|
yuuji@0
|
461 mm_log (tmp,ERROR);
|
yuuji@0
|
462 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
yuuji@0
|
463 return NIL;
|
yuuji@0
|
464 }
|
yuuji@0
|
465
|
yuuji@0
|
466 if (newname) { /* want rename? */
|
yuuji@0
|
467 /* found superior to destination name? */
|
yuuji@0
|
468 if ((s = strrchr (tmp,'\\')) && (s != tmp) &&
|
yuuji@0
|
469 ((tmp[1] != ':') || (s != tmp + 2))) {
|
yuuji@0
|
470 c = s[1]; /* remember character after delimiter */
|
yuuji@0
|
471 *s = s[1] = '\0'; /* tie off name at delimiter */
|
yuuji@0
|
472 /* name doesn't exist, create it */
|
yuuji@0
|
473 if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) {
|
yuuji@0
|
474 *s = '\\'; /* restore delimiter */
|
yuuji@0
|
475 if (!dummy_create (stream,tmp)) ret = NIL;
|
yuuji@0
|
476 }
|
yuuji@0
|
477 else *s = '\\'; /* restore delimiter */
|
yuuji@0
|
478 s[1] = c; /* restore character after delimiter */
|
yuuji@0
|
479 }
|
yuuji@0
|
480 flock (fd,LOCK_UN); /* release lock on the file */
|
yuuji@0
|
481 close (fd); /* pacify NTFS */
|
yuuji@0
|
482 /* rename the file */
|
yuuji@0
|
483 if (ret && rename (file,tmp)) {
|
yuuji@0
|
484 sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %s",old,newname,
|
yuuji@0
|
485 strerror (errno));
|
yuuji@0
|
486 mm_log (tmp,ERROR);
|
yuuji@0
|
487 ret = NIL; /* set failure */
|
yuuji@0
|
488 }
|
yuuji@0
|
489 }
|
yuuji@0
|
490 else {
|
yuuji@0
|
491 flock (fd,LOCK_UN); /* release lock on the file */
|
yuuji@0
|
492 close (fd); /* pacify NTFS */
|
yuuji@0
|
493 if (unlink (file)) {
|
yuuji@0
|
494 sprintf (tmp,"Can't delete mailbox %.80s: %s",old,strerror (errno));
|
yuuji@0
|
495 mm_log (tmp,ERROR);
|
yuuji@0
|
496 ret = NIL; /* set failure */
|
yuuji@0
|
497 }
|
yuuji@0
|
498 }
|
yuuji@0
|
499 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
yuuji@0
|
500 /* recreate file if renamed INBOX */
|
yuuji@0
|
501 if (ret && !compare_cstring (old,"INBOX")) mbx_create (NIL,"INBOX");
|
yuuji@0
|
502 return ret; /* return success */
|
yuuji@0
|
503 }
|
yuuji@0
|
504
|
yuuji@0
|
505 /* MBX mail open
|
yuuji@0
|
506 * Accepts: stream to open
|
yuuji@0
|
507 * Returns: stream on success, NIL on failure
|
yuuji@0
|
508 */
|
yuuji@0
|
509
|
yuuji@0
|
510 MAILSTREAM *mbx_open (MAILSTREAM *stream)
|
yuuji@0
|
511 {
|
yuuji@0
|
512 int fd,ld;
|
yuuji@0
|
513 short silent;
|
yuuji@0
|
514 char tmp[MAILTMPLEN];
|
yuuji@0
|
515 if (!stream) return &mbxproto;/* return prototype for OP_PROTOTYPE call */
|
yuuji@0
|
516 if (stream->local) fatal ("mbx recycle stream");
|
yuuji@0
|
517 /* canonicalize the mailbox name */
|
yuuji@0
|
518 if (!dummy_file (tmp,stream->mailbox)) {
|
yuuji@0
|
519 sprintf (tmp,"Can't open - invalid name: %.80s",stream->mailbox);
|
yuuji@0
|
520 mm_log (tmp,ERROR);
|
yuuji@0
|
521 }
|
yuuji@0
|
522 if (stream->rdonly ||
|
yuuji@0
|
523 (fd = open (tmp,O_RDWR|O_BINARY,NIL)) < 0) {
|
yuuji@0
|
524 if ((fd = open (tmp,O_RDONLY|O_BINARY,NIL)) < 0) {
|
yuuji@0
|
525 sprintf (tmp,"Can't open mailbox: %s",strerror (errno));
|
yuuji@0
|
526 mm_log (tmp,ERROR);
|
yuuji@0
|
527 return NIL;
|
yuuji@0
|
528 }
|
yuuji@0
|
529 else if (!stream->rdonly) { /* got it, but readonly */
|
yuuji@0
|
530 mm_log ("Can't get write access to mailbox, access is readonly",WARN);
|
yuuji@0
|
531 stream->rdonly = T;
|
yuuji@0
|
532 }
|
yuuji@0
|
533 }
|
yuuji@0
|
534
|
yuuji@0
|
535 stream->local = memset (fs_get (sizeof (MBXLOCAL)),NIL,sizeof (MBXLOCAL));
|
yuuji@0
|
536 LOCAL->fd = fd; /* bind the file */
|
yuuji@0
|
537 LOCAL->ld = -1; /* no flaglock */
|
yuuji@0
|
538 LOCAL->buf = (char *) fs_get (CHUNKSIZE);
|
yuuji@0
|
539 LOCAL->buflen = CHUNKSIZE - 1;
|
yuuji@0
|
540 /* note if an INBOX or not */
|
yuuji@0
|
541 stream->inbox = !compare_cstring (stream->mailbox,"INBOX");
|
yuuji@0
|
542 fs_give ((void **) &stream->mailbox);
|
yuuji@0
|
543 stream->mailbox = cpystr (tmp);
|
yuuji@0
|
544 /* get parse/append permission */
|
yuuji@0
|
545 if ((ld = lockname (tmp,stream->mailbox,LOCK_EX)) < 0) {
|
yuuji@0
|
546 mm_log ("Unable to lock open mailbox",ERROR);
|
yuuji@0
|
547 return NIL;
|
yuuji@0
|
548 }
|
yuuji@0
|
549 flock (LOCAL->fd,LOCK_SH); /* lock the file */
|
yuuji@0
|
550 unlockfd (ld,tmp); /* release shared parse permission */
|
yuuji@0
|
551 LOCAL->filesize = HDRSIZE; /* initialize parsed file size */
|
yuuji@0
|
552 LOCAL->filetime = 0; /* time not set up yet */
|
yuuji@0
|
553 LOCAL->expok = LOCAL->flagcheck = NIL;
|
yuuji@0
|
554 stream->sequence++; /* bump sequence number */
|
yuuji@0
|
555 /* parse mailbox */
|
yuuji@0
|
556 stream->nmsgs = stream->recent = 0;
|
yuuji@0
|
557 silent = stream->silent; /* defer events */
|
yuuji@0
|
558 stream->silent = T;
|
yuuji@0
|
559 if (mbx_ping (stream) && !stream->nmsgs)
|
yuuji@0
|
560 mm_log ("Mailbox is empty",(long) NIL);
|
yuuji@0
|
561 stream->silent = silent; /* now notify upper level */
|
yuuji@0
|
562 mail_exists (stream,stream->nmsgs);
|
yuuji@0
|
563 mail_recent (stream,stream->recent);
|
yuuji@0
|
564 if (!LOCAL) return NIL; /* failure if stream died */
|
yuuji@0
|
565 stream->perm_seen = stream->perm_deleted = stream->perm_flagged =
|
yuuji@0
|
566 stream->perm_answered = stream->perm_draft = stream->rdonly ? NIL : T;
|
yuuji@0
|
567 stream->perm_user_flags = stream->rdonly ? NIL : 0xffffffff;
|
yuuji@0
|
568 stream->kwd_create = (stream->user_flags[NUSERFLAGS-1] || stream->rdonly) ?
|
yuuji@0
|
569 NIL : T; /* can we create new user flags? */
|
yuuji@0
|
570 return stream; /* return stream to caller */
|
yuuji@0
|
571 }
|
yuuji@0
|
572
|
yuuji@0
|
573 /* MBX mail close
|
yuuji@0
|
574 * Accepts: MAIL stream
|
yuuji@0
|
575 * close options
|
yuuji@0
|
576 */
|
yuuji@0
|
577
|
yuuji@0
|
578 void mbx_close (MAILSTREAM *stream,long options)
|
yuuji@0
|
579 {
|
yuuji@0
|
580 if (stream && LOCAL) { /* only if a file is open */
|
yuuji@0
|
581 int silent = stream->silent;
|
yuuji@0
|
582 stream->silent = T; /* note this stream is dying */
|
yuuji@0
|
583 /* do an expunge if requested */
|
yuuji@0
|
584 if (options & CL_EXPUNGE) mbx_expunge (stream,NIL,NIL);
|
yuuji@0
|
585 else { /* otherwise do a checkpoint to purge */
|
yuuji@0
|
586 LOCAL->expok = T; /* possible expunged messages */
|
yuuji@0
|
587 mbx_ping (stream);
|
yuuji@0
|
588 }
|
yuuji@0
|
589 stream->silent = silent; /* restore previous status */
|
yuuji@0
|
590 mbx_abort (stream);
|
yuuji@0
|
591 }
|
yuuji@0
|
592 }
|
yuuji@0
|
593
|
yuuji@0
|
594
|
yuuji@0
|
595 /* MBX mail abort stream
|
yuuji@0
|
596 * Accepts: MAIL stream
|
yuuji@0
|
597 */
|
yuuji@0
|
598
|
yuuji@0
|
599 void mbx_abort (MAILSTREAM *stream)
|
yuuji@0
|
600 {
|
yuuji@0
|
601 if (stream && LOCAL) { /* only if a file is open */
|
yuuji@0
|
602 flock (LOCAL->fd,LOCK_UN); /* unlock local file */
|
yuuji@0
|
603 close (LOCAL->fd); /* close the local file */
|
yuuji@0
|
604 /* free local text buffer */
|
yuuji@0
|
605 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
|
yuuji@0
|
606 /* nuke the local data */
|
yuuji@0
|
607 fs_give ((void **) &stream->local);
|
yuuji@0
|
608 stream->dtb = NIL; /* log out the DTB */
|
yuuji@0
|
609 }
|
yuuji@0
|
610 }
|
yuuji@0
|
611
|
yuuji@0
|
612
|
yuuji@0
|
613 /* MBX mail fetch flags
|
yuuji@0
|
614 * Accepts: MAIL stream
|
yuuji@0
|
615 * sequence
|
yuuji@0
|
616 * option flags
|
yuuji@0
|
617 * Sniffs at file to see if some other process changed the flags
|
yuuji@0
|
618 */
|
yuuji@0
|
619
|
yuuji@0
|
620 void mbx_flags (MAILSTREAM *stream,char *sequence,long flags)
|
yuuji@0
|
621 {
|
yuuji@0
|
622 MESSAGECACHE *elt;
|
yuuji@0
|
623 unsigned long i;
|
yuuji@0
|
624 if (mbx_ping (stream) && /* ping mailbox, get new status for messages */
|
yuuji@0
|
625 ((flags & FT_UID) ? mail_uid_sequence (stream,sequence) :
|
yuuji@0
|
626 mail_sequence (stream,sequence)))
|
yuuji@0
|
627 for (i = 1; i <= stream->nmsgs; i++)
|
yuuji@0
|
628 if ((elt = mail_elt (stream,i))->sequence && !elt->valid)
|
yuuji@0
|
629 mbx_elt (stream,i,NIL);
|
yuuji@0
|
630 }
|
yuuji@0
|
631
|
yuuji@0
|
632 /* MBX mail fetch message header
|
yuuji@0
|
633 * Accepts: MAIL stream
|
yuuji@0
|
634 * message # to fetch
|
yuuji@0
|
635 * pointer to returned header text length
|
yuuji@0
|
636 * option flags
|
yuuji@0
|
637 * Returns: message header in RFC822 format
|
yuuji@0
|
638 */
|
yuuji@0
|
639
|
yuuji@0
|
640 char *mbx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
|
yuuji@0
|
641 long flags)
|
yuuji@0
|
642 {
|
yuuji@0
|
643 unsigned long i;
|
yuuji@0
|
644 char *s;
|
yuuji@0
|
645 *length = 0; /* default to empty */
|
yuuji@0
|
646 if (flags & FT_UID) return "";/* UID call "impossible" */
|
yuuji@0
|
647 /* get header position, possibly header */
|
yuuji@0
|
648 i = mbx_hdrpos (stream,msgno,length,&s);
|
yuuji@0
|
649 if (!s) { /* mbx_hdrpos() returned header? */
|
yuuji@0
|
650 lseek (LOCAL->fd,i,L_SET); /* no, get to header position */
|
yuuji@0
|
651 /* is buffer big enough? */
|
yuuji@0
|
652 if (*length > LOCAL->buflen) {
|
yuuji@0
|
653 fs_give ((void **) &LOCAL->buf);
|
yuuji@0
|
654 LOCAL->buf = (char *) fs_get ((LOCAL->buflen = *length) + 1);
|
yuuji@0
|
655 }
|
yuuji@0
|
656 /* slurp the data */
|
yuuji@0
|
657 read (LOCAL->fd,s = LOCAL->buf,*length);
|
yuuji@0
|
658 }
|
yuuji@0
|
659 s[*length] = '\0'; /* tie off string */
|
yuuji@0
|
660 return s;
|
yuuji@0
|
661 }
|
yuuji@0
|
662
|
yuuji@0
|
663 /* MBX mail fetch message text (body only)
|
yuuji@0
|
664 * Accepts: MAIL stream
|
yuuji@0
|
665 * message # to fetch
|
yuuji@0
|
666 * pointer to returned header text length
|
yuuji@0
|
667 * option flags
|
yuuji@0
|
668 * Returns: T on success, NIL on failure
|
yuuji@0
|
669 */
|
yuuji@0
|
670
|
yuuji@0
|
671 long mbx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags)
|
yuuji@0
|
672 {
|
yuuji@0
|
673 FDDATA d;
|
yuuji@0
|
674 unsigned long i,j;
|
yuuji@0
|
675 MESSAGECACHE *elt;
|
yuuji@0
|
676 /* UID call "impossible" */
|
yuuji@0
|
677 if (flags & FT_UID) return NIL;
|
yuuji@0
|
678 /* get message status */
|
yuuji@0
|
679 elt = mbx_elt (stream,msgno,NIL);
|
yuuji@0
|
680 /* if message not seen */
|
yuuji@0
|
681 if (!(flags & FT_PEEK) && !elt->seen && mbx_flaglock (stream)) {
|
yuuji@0
|
682 elt->seen = T; /* mark message as seen */
|
yuuji@0
|
683 /* recalculate status */
|
yuuji@0
|
684 mbx_update_status (stream,msgno,NIL);
|
yuuji@0
|
685 mm_flags (stream,msgno);
|
yuuji@0
|
686 /* update flags */
|
yuuji@0
|
687 mbx_flag (stream,NIL,NIL,NIL);
|
yuuji@0
|
688 }
|
yuuji@0
|
689 if (!LOCAL) return NIL; /* mbx_flaglock() could have aborted */
|
yuuji@0
|
690 /* find header position */
|
yuuji@0
|
691 i = mbx_hdrpos (stream,msgno,&j,NIL);
|
yuuji@0
|
692 d.fd = LOCAL->fd; /* set up file descriptor */
|
yuuji@0
|
693 d.pos = i + j;
|
yuuji@0
|
694 d.chunk = LOCAL->buf; /* initial buffer chunk */
|
yuuji@0
|
695 d.chunksize = CHUNKSIZE;
|
yuuji@0
|
696 INIT (bs,fd_string,&d,elt->rfc822_size - j);
|
yuuji@0
|
697 return LONGT; /* success */
|
yuuji@0
|
698 }
|
yuuji@0
|
699
|
yuuji@0
|
700 /* MBX mail modify flags
|
yuuji@0
|
701 * Accepts: MAIL stream
|
yuuji@0
|
702 * sequence
|
yuuji@0
|
703 * flag(s)
|
yuuji@0
|
704 * option flags
|
yuuji@0
|
705 * Unlocks flag lock
|
yuuji@0
|
706 */
|
yuuji@0
|
707
|
yuuji@0
|
708 void mbx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags)
|
yuuji@0
|
709 {
|
yuuji@0
|
710 struct utimbuf times;
|
yuuji@0
|
711 struct stat sbuf;
|
yuuji@0
|
712 /* make sure the update takes */
|
yuuji@0
|
713 if (!stream->rdonly && LOCAL && (LOCAL->fd >= 0) && (LOCAL->ld >= 0)) {
|
yuuji@0
|
714 fsync (LOCAL->fd);
|
yuuji@0
|
715 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
yuuji@0
|
716 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
yuuji@0
|
717 /* update header */
|
yuuji@0
|
718 if ((LOCAL->ffuserflag < NUSERFLAGS) &&
|
yuuji@0
|
719 stream->user_flags[LOCAL->ffuserflag]) mbx_update_header (stream);
|
yuuji@0
|
720 times.actime = time (0); /* make sure read comes after all that */
|
yuuji@0
|
721 utime (stream->mailbox,×);
|
yuuji@0
|
722 }
|
yuuji@0
|
723 if (LOCAL->ld >= 0) { /* unlock now */
|
yuuji@0
|
724 unlockfd (LOCAL->ld,LOCAL->lock);
|
yuuji@0
|
725 LOCAL->ld = -1;
|
yuuji@0
|
726 }
|
yuuji@0
|
727 }
|
yuuji@0
|
728
|
yuuji@0
|
729
|
yuuji@0
|
730 /* MBX mail per-message modify flags
|
yuuji@0
|
731 * Accepts: MAIL stream
|
yuuji@0
|
732 * message cache element
|
yuuji@0
|
733 */
|
yuuji@0
|
734
|
yuuji@0
|
735 void mbx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt)
|
yuuji@0
|
736 {
|
yuuji@0
|
737 if (mbx_flaglock (stream)) mbx_update_status (stream,elt->msgno,NIL);
|
yuuji@0
|
738 }
|
yuuji@0
|
739
|
yuuji@0
|
740 /* MBX mail ping mailbox
|
yuuji@0
|
741 * Accepts: MAIL stream
|
yuuji@0
|
742 * Returns: T if stream still alive, NIL if not
|
yuuji@0
|
743 */
|
yuuji@0
|
744
|
yuuji@0
|
745 long mbx_ping (MAILSTREAM *stream)
|
yuuji@0
|
746 {
|
yuuji@0
|
747 unsigned long i,pos;
|
yuuji@0
|
748 long ret = NIL;
|
yuuji@0
|
749 int ld;
|
yuuji@0
|
750 char lock[MAILTMPLEN];
|
yuuji@0
|
751 MESSAGECACHE *elt;
|
yuuji@0
|
752 struct stat sbuf;
|
yuuji@0
|
753 if (stream && LOCAL) { /* only if stream already open */
|
yuuji@0
|
754 ret = LONGT; /* assume OK */
|
yuuji@0
|
755 fstat (LOCAL->fd,&sbuf); /* get current file poop */
|
yuuji@0
|
756 /* allow expunge if permitted at ping */
|
yuuji@0
|
757 if (mail_parameters (NIL,GET_EXPUNGEATPING,NIL)) LOCAL->expok = T;
|
yuuji@0
|
758 /* if external modification */
|
yuuji@0
|
759 if (LOCAL->filetime && (LOCAL->filetime < sbuf.st_mtime))
|
yuuji@0
|
760 LOCAL->flagcheck = T; /* upgrade to flag checking */
|
yuuji@0
|
761 /* new mail or flagcheck handling needed? */
|
yuuji@0
|
762 if (((sbuf.st_size - LOCAL->filesize) || LOCAL->flagcheck ||
|
yuuji@0
|
763 !stream->nmsgs) &&
|
yuuji@0
|
764 ((ld = lockname (lock,stream->mailbox,LOCK_EX)) >= 0)) {
|
yuuji@0
|
765 if (!LOCAL->flagcheck) ret = mbx_parse (stream);
|
yuuji@0
|
766 /* sweep mailbox for changed message status */
|
yuuji@0
|
767 else if (ret = mbx_parse (stream)) {
|
yuuji@0
|
768 unsigned long recent = 0;
|
yuuji@0
|
769 LOCAL->filetime = sbuf.st_mtime;
|
yuuji@0
|
770 for (i = 1; i <= stream->nmsgs; )
|
yuuji@0
|
771 if (elt = mbx_elt (stream,i,LOCAL->expok)) {
|
yuuji@0
|
772 if (elt->recent) ++recent;
|
yuuji@0
|
773 ++i;
|
yuuji@0
|
774 }
|
yuuji@0
|
775 mail_recent (stream,recent);
|
yuuji@0
|
776 LOCAL->flagcheck = NIL; /* got all the updates */
|
yuuji@0
|
777 }
|
yuuji@0
|
778 unlockfd (ld,lock); /* release shared parse/append permission */
|
yuuji@0
|
779 }
|
yuuji@0
|
780 if (ret) { /* must still be alive */
|
yuuji@0
|
781 if (!LOCAL->expunged) /* look for holes if none known yet */
|
yuuji@0
|
782 for (i = 1, pos = HDRSIZE;
|
yuuji@0
|
783 !LOCAL->expunged && (i <= stream->nmsgs);
|
yuuji@0
|
784 i++, pos += elt->private.special.text.size + elt->rfc822_size)
|
yuuji@0
|
785 if ((elt = mail_elt (stream,i))->private.special.offset != pos)
|
yuuji@0
|
786 LOCAL->expunged = T;/* found a hole */
|
yuuji@0
|
787 /* burp any holes */
|
yuuji@0
|
788 if (LOCAL->expunged && !stream->rdonly) {
|
yuuji@0
|
789 if (mbx_rewrite (stream,&i,NIL)) fatal ("expunge on check");
|
yuuji@0
|
790 if (i) { /* any space reclaimed? */
|
yuuji@0
|
791 LOCAL->expunged = NIL;/* no more pending expunge */
|
yuuji@0
|
792 sprintf (LOCAL->buf,"Reclaimed %lu bytes of expunged space",i);
|
yuuji@0
|
793 mm_log (LOCAL->buf,(long) NIL);
|
yuuji@0
|
794 }
|
yuuji@0
|
795 }
|
yuuji@0
|
796 LOCAL->expok = NIL; /* no more expok */
|
yuuji@0
|
797 }
|
yuuji@0
|
798 }
|
yuuji@0
|
799 return ret; /* return result of the parse */
|
yuuji@0
|
800 }
|
yuuji@0
|
801
|
yuuji@0
|
802 /* MBX mail check mailbox (reparses status too)
|
yuuji@0
|
803 * Accepts: MAIL stream
|
yuuji@0
|
804 */
|
yuuji@0
|
805
|
yuuji@0
|
806 void mbx_check (MAILSTREAM *stream)
|
yuuji@0
|
807 {
|
yuuji@0
|
808 if (LOCAL) LOCAL->expok = T; /* mark that a check is desired */
|
yuuji@0
|
809 if (mbx_ping (stream)) mm_log ("Check completed",(long) NIL);
|
yuuji@0
|
810 }
|
yuuji@0
|
811
|
yuuji@0
|
812
|
yuuji@0
|
813 /* MBX mail expunge mailbox
|
yuuji@0
|
814 * Accepts: MAIL stream
|
yuuji@0
|
815 * sequence to expunge if non-NIL
|
yuuji@0
|
816 * expunge options
|
yuuji@0
|
817 * Returns: T if success, NIL if failure
|
yuuji@0
|
818 */
|
yuuji@0
|
819
|
yuuji@0
|
820 long mbx_expunge (MAILSTREAM *stream,char *sequence,long options)
|
yuuji@0
|
821 {
|
yuuji@0
|
822 long ret;
|
yuuji@0
|
823 unsigned long nexp,reclaimed;
|
yuuji@0
|
824 if (ret = sequence ? ((options & EX_UID) ?
|
yuuji@0
|
825 mail_uid_sequence (stream,sequence) :
|
yuuji@0
|
826 mail_sequence (stream,sequence)) : LONGT) {
|
yuuji@0
|
827 if (!mbx_ping (stream)); /* do nothing if stream dead */
|
yuuji@0
|
828 else if (stream->rdonly) /* won't do on readonly files! */
|
yuuji@0
|
829 mm_log ("Expunge ignored on readonly mailbox",WARN);
|
yuuji@0
|
830 /* if expunged any messages */
|
yuuji@0
|
831 else if (nexp = mbx_rewrite (stream,&reclaimed,sequence ? -1 : 1)) {
|
yuuji@0
|
832 sprintf (LOCAL->buf,"Expunged %lu messages",nexp);
|
yuuji@0
|
833 mm_log (LOCAL->buf,(long) NIL);
|
yuuji@0
|
834 }
|
yuuji@0
|
835 else if (reclaimed) { /* or if any prior expunged space reclaimed */
|
yuuji@0
|
836 sprintf (LOCAL->buf,"Reclaimed %lu bytes of expunged space",reclaimed);
|
yuuji@0
|
837 mm_log (LOCAL->buf,(long) NIL);
|
yuuji@0
|
838 }
|
yuuji@0
|
839 else mm_log ("No messages deleted, so no update needed",(long) NIL);
|
yuuji@0
|
840 }
|
yuuji@0
|
841 return ret;
|
yuuji@0
|
842 }
|
yuuji@0
|
843
|
yuuji@0
|
844 /* MBX mail copy message(s)
|
yuuji@0
|
845 * Accepts: MAIL stream
|
yuuji@0
|
846 * sequence
|
yuuji@0
|
847 * destination mailbox
|
yuuji@0
|
848 * copy options
|
yuuji@0
|
849 * Returns: T if success, NIL if failed
|
yuuji@0
|
850 */
|
yuuji@0
|
851
|
yuuji@0
|
852 long mbx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
|
yuuji@0
|
853 {
|
yuuji@0
|
854 struct stat sbuf;
|
yuuji@0
|
855 struct utimbuf times;
|
yuuji@0
|
856 MESSAGECACHE *elt;
|
yuuji@0
|
857 unsigned long i,j,k,m;
|
yuuji@0
|
858 long ret = LONGT;
|
yuuji@0
|
859 int fd,ld;
|
yuuji@0
|
860 char *s,*t,file[MAILTMPLEN],lock[MAILTMPLEN];
|
yuuji@0
|
861 mailproxycopy_t pc =
|
yuuji@0
|
862 (mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL);
|
yuuji@0
|
863 copyuid_t cu = (copyuid_t) mail_parameters (NIL,GET_COPYUID,NIL);
|
yuuji@0
|
864 SEARCHSET *source = cu ? mail_newsearchset () : NIL;
|
yuuji@0
|
865 SEARCHSET *dest = cu ? mail_newsearchset () : NIL;
|
yuuji@0
|
866 MAILSTREAM *dstream = NIL;
|
yuuji@0
|
867 if (!((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
|
yuuji@0
|
868 mail_sequence (stream,sequence))) return NIL;
|
yuuji@0
|
869 /* make sure valid mailbox */
|
yuuji@0
|
870 if ((fd = mbx_isvalid (&dstream,mailbox,file,&ld,lock,
|
yuuji@0
|
871 cu ? MBXISVALIDUID : MBXISVALIDNOUID)) < 0)
|
yuuji@0
|
872 switch (errno) {
|
yuuji@0
|
873 case ENOENT: /* no such file? */
|
yuuji@0
|
874 mm_notify (stream,"[TRYCREATE] Must create mailbox before copy",NIL);
|
yuuji@0
|
875 return NIL;
|
yuuji@0
|
876 case EACCES: /* file protected */
|
yuuji@0
|
877 sprintf (LOCAL->buf,"Can't access destination: %.80s",mailbox);
|
yuuji@0
|
878 MM_LOG (LOCAL->buf,ERROR);
|
yuuji@0
|
879 return NIL;
|
yuuji@0
|
880 case EINVAL:
|
yuuji@0
|
881 if (pc) return (*pc) (stream,sequence,mailbox,options);
|
yuuji@0
|
882 sprintf (LOCAL->buf,"Invalid MBX-format mailbox name: %.80s",mailbox);
|
yuuji@0
|
883 mm_log (LOCAL->buf,ERROR);
|
yuuji@0
|
884 return NIL;
|
yuuji@0
|
885 default:
|
yuuji@0
|
886 if (pc) return (*pc) (stream,sequence,mailbox,options);
|
yuuji@0
|
887 sprintf (LOCAL->buf,"Not a MBX-format mailbox: %.80s",mailbox);
|
yuuji@0
|
888 mm_log (LOCAL->buf,ERROR);
|
yuuji@0
|
889 return NIL;
|
yuuji@0
|
890 }
|
yuuji@0
|
891 /* got file? */
|
yuuji@0
|
892 if ((fd = open (dummy_file (file,mailbox),O_RDWR|O_CREAT|O_BINARY,
|
yuuji@0
|
893 S_IREAD|S_IWRITE)) < 0) {
|
yuuji@0
|
894 sprintf (LOCAL->buf,"Unable to open copy mailbox: %s",strerror (errno));
|
yuuji@0
|
895 mm_log (LOCAL->buf,ERROR);
|
yuuji@0
|
896 return NIL;
|
yuuji@0
|
897 }
|
yuuji@0
|
898 mm_critical (stream); /* go critical */
|
yuuji@0
|
899 fstat (fd,&sbuf); /* get current file size */
|
yuuji@0
|
900 lseek (fd,sbuf.st_size,L_SET);/* move to end of file */
|
yuuji@0
|
901
|
yuuji@0
|
902 /* for each requested message */
|
yuuji@0
|
903 for (i = 1; ret && (i <= stream->nmsgs); i++)
|
yuuji@0
|
904 if ((elt = mail_elt (stream,i))->sequence) {
|
yuuji@0
|
905 lseek (LOCAL->fd,elt->private.special.offset +
|
yuuji@0
|
906 elt->private.special.text.size,L_SET);
|
yuuji@0
|
907 mail_date(LOCAL->buf,elt);/* build target header */
|
yuuji@0
|
908 /* get target keyword mask */
|
yuuji@0
|
909 for (j = elt->user_flags, k = 0; j; )
|
yuuji@0
|
910 if (s = stream->user_flags[find_rightmost_bit (&j)])
|
yuuji@0
|
911 for (m = 0; (m < NUSERFLAGS) && (t = dstream->user_flags[m]); m++)
|
yuuji@0
|
912 if (!compare_cstring (s,t) && (k |= 1 << m)) break;
|
yuuji@0
|
913 sprintf (LOCAL->buf+strlen(LOCAL->buf),",%lu;%08lx%04x-%08lx\015\012",
|
yuuji@0
|
914 elt->rfc822_size,k,(unsigned)
|
yuuji@0
|
915 ((fSEEN * elt->seen) + (fDELETED * elt->deleted) +
|
yuuji@0
|
916 (fFLAGGED * elt->flagged) + (fANSWERED * elt->answered) +
|
yuuji@0
|
917 (fDRAFT * elt->draft)),cu ? ++dstream->uid_last : 0);
|
yuuji@0
|
918 /* write target header */
|
yuuji@0
|
919 if (ret = (write (fd,LOCAL->buf,strlen (LOCAL->buf)) > 0)) {
|
yuuji@0
|
920 for (k = elt->rfc822_size; ret && (j = min (k,LOCAL->buflen)); k -= j){
|
yuuji@0
|
921 read (LOCAL->fd,LOCAL->buf,j);
|
yuuji@0
|
922 ret = write (fd,LOCAL->buf,j) >= 0;
|
yuuji@0
|
923 }
|
yuuji@0
|
924 if (cu) { /* need to pass back new UID? */
|
yuuji@0
|
925 mail_append_set (source,mail_uid (stream,i));
|
yuuji@0
|
926 mail_append_set (dest,dstream->uid_last);
|
yuuji@0
|
927 }
|
yuuji@0
|
928 }
|
yuuji@0
|
929 }
|
yuuji@0
|
930
|
yuuji@0
|
931 /* make sure all the updates take */
|
yuuji@0
|
932 if (!(ret && (ret = !fsync (fd)))) {
|
yuuji@0
|
933 sprintf (LOCAL->buf,"Unable to write message: %s",strerror (errno));
|
yuuji@0
|
934 mm_log (LOCAL->buf,ERROR);
|
yuuji@0
|
935 ftruncate (fd,sbuf.st_size);
|
yuuji@0
|
936 }
|
yuuji@0
|
937 if (cu && ret) { /* return sets if doing COPYUID */
|
yuuji@0
|
938 (*cu) (stream,mailbox,dstream->uid_validity,source,dest);
|
yuuji@0
|
939 lseek (fd,15,L_SET); /* update UIDLAST */
|
yuuji@0
|
940 sprintf (LOCAL->buf,"%08lx",dstream->uid_last);
|
yuuji@0
|
941 write (fd,LOCAL->buf,8);
|
yuuji@0
|
942 }
|
yuuji@0
|
943 else { /* flush any sets we may have built */
|
yuuji@0
|
944 mail_free_searchset (&source);
|
yuuji@0
|
945 mail_free_searchset (&dest);
|
yuuji@0
|
946 }
|
yuuji@0
|
947 /* set atime to now-1 if successful copy */
|
yuuji@0
|
948 if (ret) times.actime = time (0) - 1;
|
yuuji@0
|
949 /* else preserved \Marked status */
|
yuuji@0
|
950 else times.actime = (sbuf.st_ctime > sbuf.st_atime) ?
|
yuuji@0
|
951 sbuf.st_atime : time (0);
|
yuuji@0
|
952 times.modtime = sbuf.st_mtime;/* preserve mtime */
|
yuuji@0
|
953 utime (file,×); /* set the times */
|
yuuji@0
|
954 close (fd); /* close the file */
|
yuuji@0
|
955 mm_nocritical (stream); /* release critical */
|
yuuji@0
|
956 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
yuuji@0
|
957 /* delete all requested messages */
|
yuuji@0
|
958 if (ret && (options & CP_MOVE) && mbx_flaglock (stream)) {
|
yuuji@0
|
959 for (i = 1; i <= stream->nmsgs; i++) if (mail_elt (stream,i)->sequence) {
|
yuuji@0
|
960 /* mark message deleted */
|
yuuji@0
|
961 mbx_elt (stream,i,NIL)->deleted = T;
|
yuuji@0
|
962 /* recalculate status */
|
yuuji@0
|
963 mbx_update_status (stream,i,NIL);
|
yuuji@0
|
964 }
|
yuuji@0
|
965 /* update flags */
|
yuuji@0
|
966 mbx_flag (stream,NIL,NIL,NIL);
|
yuuji@0
|
967 }
|
yuuji@0
|
968 if (dstream != stream) mail_close (dstream);
|
yuuji@0
|
969 return ret;
|
yuuji@0
|
970 }
|
yuuji@0
|
971
|
yuuji@0
|
972 /* MBX mail append message from stringstruct
|
yuuji@0
|
973 * Accepts: MAIL stream
|
yuuji@0
|
974 * destination mailbox
|
yuuji@0
|
975 * append callback
|
yuuji@0
|
976 * data for callback
|
yuuji@0
|
977 * Returns: T if append successful, else NIL
|
yuuji@0
|
978 */
|
yuuji@0
|
979
|
yuuji@0
|
980 long mbx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
|
yuuji@0
|
981 {
|
yuuji@0
|
982 struct stat sbuf;
|
yuuji@0
|
983 int fd,ld;
|
yuuji@0
|
984 char *flags,*date,tmp[MAILTMPLEN],file[MAILTMPLEN],lock[MAILTMPLEN];
|
yuuji@0
|
985 struct utimbuf times;
|
yuuji@0
|
986 FILE *df;
|
yuuji@0
|
987 MESSAGECACHE elt;
|
yuuji@0
|
988 long f;
|
yuuji@0
|
989 unsigned long i,uf;
|
yuuji@0
|
990 STRING *message;
|
yuuji@0
|
991 long ret = NIL;
|
yuuji@0
|
992 MAILSTREAM *dstream = NIL;
|
yuuji@0
|
993 appenduid_t au = (appenduid_t) mail_parameters (NIL,GET_APPENDUID,NIL);
|
yuuji@0
|
994 SEARCHSET *dst = au ? mail_newsearchset () : NIL;
|
yuuji@0
|
995 /* make sure valid mailbox */
|
yuuji@0
|
996 /* make sure valid mailbox */
|
yuuji@0
|
997 if ((fd = mbx_isvalid (&dstream,mailbox,file,&ld,lock,
|
yuuji@0
|
998 au ? MBXISVALIDUID : MBXISVALIDNOUID)) < 0)
|
yuuji@0
|
999 switch (errno) {
|
yuuji@0
|
1000 case ENOENT: /* no such file? */
|
yuuji@0
|
1001 if (compare_cstring (mailbox,"INBOX")) {
|
yuuji@0
|
1002 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",NIL);
|
yuuji@0
|
1003 return NIL;
|
yuuji@0
|
1004 }
|
yuuji@0
|
1005 /* can create INBOX here */
|
yuuji@0
|
1006 mbx_create (dstream = stream ? stream : &mbxproto,"INBOX");
|
yuuji@0
|
1007 if ((fd = mbx_isvalid (&dstream,mailbox,file,&ld,lock,
|
yuuji@0
|
1008 au ? MBXISVALIDUID : MBXISVALIDNOUID)) < 0)
|
yuuji@0
|
1009 break;
|
yuuji@0
|
1010 case EACCES: /* file protected */
|
yuuji@0
|
1011 sprintf (tmp,"Can't access destination: %.80s",mailbox);
|
yuuji@0
|
1012 MM_LOG (tmp,ERROR);
|
yuuji@0
|
1013 return NIL;
|
yuuji@0
|
1014 case EINVAL:
|
yuuji@0
|
1015 sprintf (tmp,"Invalid MBX-format mailbox name: %.80s",mailbox);
|
yuuji@0
|
1016 mm_log (tmp,ERROR);
|
yuuji@0
|
1017 return NIL;
|
yuuji@0
|
1018 default:
|
yuuji@0
|
1019 sprintf (tmp,"Not a MBX-format mailbox: %.80s",mailbox);
|
yuuji@0
|
1020 mm_log (tmp,ERROR);
|
yuuji@0
|
1021 return NIL;
|
yuuji@0
|
1022 }
|
yuuji@0
|
1023
|
yuuji@0
|
1024 /* get first message */
|
yuuji@0
|
1025 if (!(*af) (dstream,data,&flags,&date,&message)) close (fd);
|
yuuji@0
|
1026 else if (!(df = fdopen (fd,"r+b"))) {
|
yuuji@0
|
1027 MM_LOG ("Unable to reopen append mailbox",ERROR);
|
yuuji@0
|
1028 close (fd);
|
yuuji@0
|
1029 }
|
yuuji@0
|
1030 else {
|
yuuji@0
|
1031 mm_critical (dstream); /* go critical */
|
yuuji@0
|
1032 fstat (fd,&sbuf); /* get current file size */
|
yuuji@0
|
1033 fseek (df,sbuf.st_size,SEEK_SET);
|
yuuji@0
|
1034 errno = 0;
|
yuuji@0
|
1035 for (ret = LONGT; ret && message; ) {
|
yuuji@0
|
1036 if (!SIZE (message)) { /* guard against zero-length */
|
yuuji@0
|
1037 mm_log ("Append of zero-length message",ERROR);
|
yuuji@0
|
1038 ret = NIL;
|
yuuji@0
|
1039 break;
|
yuuji@0
|
1040 }
|
yuuji@0
|
1041 f = mail_parse_flags (dstream,flags,&uf);
|
yuuji@0
|
1042 if (date) { /* parse date if given */
|
yuuji@0
|
1043 if (!mail_parse_date (&elt,date)) {
|
yuuji@0
|
1044 sprintf (tmp,"Bad date in append: %.80s",date);
|
yuuji@0
|
1045 mm_log (tmp,ERROR);
|
yuuji@0
|
1046 ret = NIL; /* mark failure */
|
yuuji@0
|
1047 break;
|
yuuji@0
|
1048 }
|
yuuji@0
|
1049 mail_date (tmp,&elt); /* write preseved date */
|
yuuji@0
|
1050 }
|
yuuji@0
|
1051 else internal_date (tmp); /* get current date in IMAP format */
|
yuuji@0
|
1052 /* write header */
|
yuuji@0
|
1053 if (fprintf (df,"%s,%lu;%08lx%04lx-%08lx\015\012",tmp,i = SIZE (message),
|
yuuji@0
|
1054 uf,(unsigned long) f,au ? ++dstream->uid_last : 0) < 0)
|
yuuji@0
|
1055 ret = NIL;
|
yuuji@0
|
1056 else { /* write message */
|
yuuji@0
|
1057 size_t j;
|
yuuji@0
|
1058 if (!message->cursize) SETPOS (message,GETPOS (message));
|
yuuji@0
|
1059 while (i && (j = fwrite (message->curpos,1,message->cursize,df))) {
|
yuuji@0
|
1060 i -= j;
|
yuuji@0
|
1061 SETPOS (message,GETPOS (message) + j);
|
yuuji@0
|
1062 }
|
yuuji@0
|
1063 /* get next message */
|
yuuji@0
|
1064 if (i || !(*af) (dstream,data,&flags,&date,&message)) ret = NIL;
|
yuuji@0
|
1065 else if (au) mail_append_set (dst,dstream->uid_last);
|
yuuji@0
|
1066 }
|
yuuji@0
|
1067 }
|
yuuji@0
|
1068
|
yuuji@0
|
1069 /* if error... */
|
yuuji@0
|
1070 if (!ret || (fflush (df) == EOF)) {
|
yuuji@0
|
1071 /* revert file */
|
yuuji@0
|
1072 ftruncate (fd,sbuf.st_size);
|
yuuji@0
|
1073 close (fd); /* make sure fclose() doesn't corrupt us */
|
yuuji@0
|
1074 if (errno) {
|
yuuji@0
|
1075 sprintf (tmp,"Message append failed: %s",strerror (errno));
|
yuuji@0
|
1076 mm_log (tmp,ERROR);
|
yuuji@0
|
1077 }
|
yuuji@0
|
1078 ret = NIL;
|
yuuji@0
|
1079 }
|
yuuji@0
|
1080 if (au && ret) { /* return sets if doing APPENDUID */
|
yuuji@0
|
1081 (*au) (mailbox,dstream->uid_validity,dst);
|
yuuji@0
|
1082 fseek (df,15,SEEK_SET); /* update UIDLAST */
|
yuuji@0
|
1083 fprintf (df,"%08lx",dstream->uid_last);
|
yuuji@0
|
1084 }
|
yuuji@0
|
1085 else mail_free_searchset (&dst);
|
yuuji@0
|
1086 if (ret) times.actime = time (0) - 1;
|
yuuji@0
|
1087 /* else preserve \Marked status */
|
yuuji@0
|
1088 else times.actime = (sbuf.st_ctime > sbuf.st_atime) ?
|
yuuji@0
|
1089 sbuf.st_atime : time (0);
|
yuuji@0
|
1090 /* preserve mtime */
|
yuuji@0
|
1091 times.modtime = sbuf.st_mtime;
|
yuuji@0
|
1092 utime (file,×); /* set the times */
|
yuuji@0
|
1093 fclose (df); /* close the file */
|
yuuji@0
|
1094 mm_nocritical (dstream); /* release critical */
|
yuuji@0
|
1095 }
|
yuuji@0
|
1096 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
yuuji@0
|
1097 if (dstream != stream) mail_close (dstream);
|
yuuji@0
|
1098 return ret;
|
yuuji@0
|
1099 }
|
yuuji@0
|
1100
|
yuuji@0
|
1101 /* Internal routines */
|
yuuji@0
|
1102
|
yuuji@0
|
1103
|
yuuji@0
|
1104 /* MBX mail parse mailbox
|
yuuji@0
|
1105 * Accepts: MAIL stream
|
yuuji@0
|
1106 * Returns: T if parse OK
|
yuuji@0
|
1107 * NIL if failure, stream aborted
|
yuuji@0
|
1108 */
|
yuuji@0
|
1109
|
yuuji@0
|
1110 long mbx_parse (MAILSTREAM *stream)
|
yuuji@0
|
1111 {
|
yuuji@0
|
1112 struct stat sbuf;
|
yuuji@0
|
1113 MESSAGECACHE *elt = NIL;
|
yuuji@0
|
1114 unsigned char c,*s,*t,*x;
|
yuuji@0
|
1115 char tmp[MAILTMPLEN];
|
yuuji@0
|
1116 unsigned long i,j,k,m;
|
yuuji@0
|
1117 off_t curpos = LOCAL->filesize;
|
yuuji@0
|
1118 unsigned long nmsgs = stream->nmsgs;
|
yuuji@0
|
1119 unsigned long recent = stream->recent;
|
yuuji@0
|
1120 unsigned long lastuid = 0;
|
yuuji@0
|
1121 short dirty = NIL;
|
yuuji@0
|
1122 short added = NIL;
|
yuuji@0
|
1123 short silent = stream->silent;
|
yuuji@0
|
1124 short uidwarn = T;
|
yuuji@0
|
1125 fstat (LOCAL->fd,&sbuf); /* get status */
|
yuuji@0
|
1126 if (sbuf.st_size < curpos) { /* sanity check */
|
yuuji@0
|
1127 sprintf (tmp,"Mailbox shrank from %lu to %lu!",
|
yuuji@0
|
1128 (unsigned long) curpos,(unsigned long) sbuf.st_size);
|
yuuji@0
|
1129 mm_log (tmp,ERROR);
|
yuuji@0
|
1130 mbx_abort (stream);
|
yuuji@0
|
1131 return NIL;
|
yuuji@0
|
1132 }
|
yuuji@0
|
1133 lseek (LOCAL->fd,0,L_SET); /* rewind file */
|
yuuji@0
|
1134 /* read internal header */
|
yuuji@0
|
1135 read (LOCAL->fd,LOCAL->buf,HDRSIZE);
|
yuuji@0
|
1136 LOCAL->buf[HDRSIZE] = '\0'; /* tie off header */
|
yuuji@0
|
1137 c = LOCAL->buf[15]; /* save first character of last UID */
|
yuuji@0
|
1138 LOCAL->buf[15] = '\0';
|
yuuji@0
|
1139 /* parse UID validity */
|
yuuji@0
|
1140 stream->uid_validity = strtoul (LOCAL->buf + 7,NIL,16);
|
yuuji@0
|
1141 LOCAL->buf[15] = c; /* restore first character of last UID */
|
yuuji@0
|
1142 /* parse last UID */
|
yuuji@0
|
1143 i = strtoul (LOCAL->buf + 15,NIL,16);
|
yuuji@0
|
1144 stream->uid_last = stream->rdonly ? max (i,stream->uid_last) : i;
|
yuuji@0
|
1145 /* parse user flags */
|
yuuji@0
|
1146 for (i = 0, s = LOCAL->buf + 25;
|
yuuji@0
|
1147 (i < NUSERFLAGS) && (t = strchr (s,'\015')) && (t - s);
|
yuuji@0
|
1148 i++, s = t + 2) {
|
yuuji@0
|
1149 *t = '\0'; /* tie off flag */
|
yuuji@0
|
1150 if (!stream->user_flags[i] && (strlen (s) <= MAXUSERFLAG))
|
yuuji@0
|
1151 stream->user_flags[i] = cpystr (s);
|
yuuji@0
|
1152 }
|
yuuji@0
|
1153 LOCAL->ffuserflag = (int) i; /* first free user flag */
|
yuuji@0
|
1154
|
yuuji@0
|
1155 stream->silent = T; /* don't pass up mm_exists() events yet */
|
yuuji@0
|
1156 while (sbuf.st_size - curpos){/* while there is stuff to parse */
|
yuuji@0
|
1157 /* get to that position in the file */
|
yuuji@0
|
1158 lseek (LOCAL->fd,curpos,L_SET);
|
yuuji@0
|
1159 if ((i = read (LOCAL->fd,LOCAL->buf,64)) <= 0) {
|
yuuji@0
|
1160 sprintf (tmp,"Unable to read internal header at %lu, size = %lu: %s",
|
yuuji@0
|
1161 (unsigned long) curpos,(unsigned long) sbuf.st_size,
|
yuuji@0
|
1162 i ? strerror (errno) : "no data read");
|
yuuji@0
|
1163 mm_log (tmp,ERROR);
|
yuuji@0
|
1164 mbx_abort (stream);
|
yuuji@0
|
1165 return NIL;
|
yuuji@0
|
1166 }
|
yuuji@0
|
1167 LOCAL->buf[i] = '\0'; /* tie off buffer just in case */
|
yuuji@0
|
1168 if (!((s = strchr (LOCAL->buf,'\015')) && (s[1] == '\012'))) {
|
yuuji@0
|
1169 sprintf (tmp,"Unable to find CRLF at %lu in %lu bytes, text: %.80s",
|
yuuji@0
|
1170 (unsigned long) curpos,i,(char *) LOCAL->buf);
|
yuuji@0
|
1171 mm_log (tmp,ERROR);
|
yuuji@0
|
1172 mbx_abort (stream);
|
yuuji@0
|
1173 return NIL;
|
yuuji@0
|
1174 }
|
yuuji@0
|
1175 *s = '\0'; /* tie off header line */
|
yuuji@0
|
1176 i = (s + 2) - LOCAL->buf; /* note start of text offset */
|
yuuji@0
|
1177 if (!((s = strchr (LOCAL->buf,',')) && (t = strchr (s+1,';')))) {
|
yuuji@0
|
1178 sprintf (tmp,"Unable to parse internal header at %lu: %.80s",
|
yuuji@0
|
1179 (unsigned long) curpos,(char *) LOCAL->buf);
|
yuuji@0
|
1180 mm_log (tmp,ERROR);
|
yuuji@0
|
1181 mbx_abort (stream);
|
yuuji@0
|
1182 return NIL;
|
yuuji@0
|
1183 }
|
yuuji@0
|
1184 if (!(isxdigit (t[1]) && isxdigit (t[2]) && isxdigit (t[3]) &&
|
yuuji@0
|
1185 isxdigit (t[4]) && isxdigit (t[5]) && isxdigit (t[6]) &&
|
yuuji@0
|
1186 isxdigit (t[7]) && isxdigit (t[8]) && isxdigit (t[9]) &&
|
yuuji@0
|
1187 isxdigit (t[10]) && isxdigit (t[11]) && isxdigit (t[12]))) {
|
yuuji@0
|
1188 sprintf (tmp,"Unable to parse message flags at %lu: %.80s",
|
yuuji@0
|
1189 (unsigned long) curpos,(char *) LOCAL->buf);
|
yuuji@0
|
1190 mm_log (tmp,ERROR);
|
yuuji@0
|
1191 mbx_abort (stream);
|
yuuji@0
|
1192 return NIL;
|
yuuji@0
|
1193 }
|
yuuji@0
|
1194 if ((t[13] != '-') || t[22] ||
|
yuuji@0
|
1195 !(isxdigit (t[14]) && isxdigit (t[15]) && isxdigit (t[16]) &&
|
yuuji@0
|
1196 isxdigit (t[17]) && isxdigit (t[18]) && isxdigit (t[19]) &&
|
yuuji@0
|
1197 isxdigit (t[20]) && isxdigit (t[21]))) {
|
yuuji@0
|
1198 sprintf (tmp,"Unable to parse message UID at %lu: %.80s",
|
yuuji@0
|
1199 (unsigned long) curpos,(char *) LOCAL->buf);
|
yuuji@0
|
1200 mm_log (tmp,ERROR);
|
yuuji@0
|
1201 mbx_abort (stream);
|
yuuji@0
|
1202 return NIL;
|
yuuji@0
|
1203 }
|
yuuji@0
|
1204
|
yuuji@0
|
1205 *s++ = '\0'; *t++ = '\0'; /* break up fields */
|
yuuji@0
|
1206 /* get message size */
|
yuuji@0
|
1207 if (!(j = strtoul (s,(char **) &x,10)) && (!(x && *x))) {
|
yuuji@0
|
1208 sprintf (tmp,"Unable to parse message size at %lu: %.80s,%.80s;%.80s",
|
yuuji@0
|
1209 (unsigned long) curpos,(char *) LOCAL->buf,(char *) s,
|
yuuji@0
|
1210 (char *) t);
|
yuuji@0
|
1211 mm_log (tmp,ERROR);
|
yuuji@0
|
1212 mbx_abort (stream);
|
yuuji@0
|
1213 return NIL;
|
yuuji@0
|
1214 }
|
yuuji@0
|
1215 /* make sure didn't run off end of file */
|
yuuji@0
|
1216 if (((off_t) (curpos + i + j)) > sbuf.st_size) {
|
yuuji@0
|
1217 sprintf (tmp,"Last message (at %lu) runs past end of file (%lu > %lu)",
|
yuuji@0
|
1218 (unsigned long) curpos,(unsigned long) (curpos + i + j),
|
yuuji@0
|
1219 (unsigned long) sbuf.st_size);
|
yuuji@0
|
1220 mm_log (tmp,ERROR);
|
yuuji@0
|
1221 mbx_abort (stream);
|
yuuji@0
|
1222 return NIL;
|
yuuji@0
|
1223 }
|
yuuji@0
|
1224 /* parse UID */
|
yuuji@0
|
1225 if ((m = strtoul (t+13,NIL,16)) &&
|
yuuji@0
|
1226 ((m <= lastuid) || (m > stream->uid_last))) {
|
yuuji@0
|
1227 if (uidwarn) {
|
yuuji@0
|
1228 sprintf (tmp,"Invalid UID %08lx in message %lu, rebuilding UIDs",
|
yuuji@0
|
1229 m,nmsgs+1);
|
yuuji@0
|
1230 mm_log (tmp,WARN);
|
yuuji@0
|
1231 uidwarn = NIL;
|
yuuji@0
|
1232 /* restart UID validity */
|
yuuji@0
|
1233 stream->uid_validity = (unsigned long) time (0);
|
yuuji@0
|
1234 }
|
yuuji@0
|
1235 m = 0; /* lose this UID */
|
yuuji@0
|
1236 dirty = T; /* mark dirty, set new lastuid */
|
yuuji@0
|
1237 stream->uid_last = lastuid;
|
yuuji@0
|
1238 }
|
yuuji@0
|
1239
|
yuuji@0
|
1240 t[12] = '\0'; /* parse system flags */
|
yuuji@0
|
1241 if ((k = strtoul (t+8,NIL,16)) & fEXPUNGED) {
|
yuuji@0
|
1242 if (m) lastuid = m; /* expunge message, update last UID seen */
|
yuuji@0
|
1243 else { /* no UID assigned? */
|
yuuji@0
|
1244 lastuid = ++stream->uid_last;
|
yuuji@0
|
1245 dirty = T;
|
yuuji@0
|
1246 }
|
yuuji@0
|
1247 }
|
yuuji@0
|
1248 else { /* not expunged, swell the cache */
|
yuuji@0
|
1249 added = T; /* note that a new message was added */
|
yuuji@0
|
1250 mail_exists (stream,++nmsgs);
|
yuuji@0
|
1251 /* instantiate an elt for this message */
|
yuuji@0
|
1252 (elt = mail_elt (stream,nmsgs))->valid = T;
|
yuuji@0
|
1253 /* parse the date */
|
yuuji@0
|
1254 if (!mail_parse_date (elt,LOCAL->buf)) {
|
yuuji@0
|
1255 sprintf (tmp,"Unable to parse message date at %lu: %.80s",
|
yuuji@0
|
1256 (unsigned long) curpos,(char *) LOCAL->buf);
|
yuuji@0
|
1257 mm_log (tmp,ERROR);
|
yuuji@0
|
1258 mbx_abort (stream);
|
yuuji@0
|
1259 return NIL;
|
yuuji@0
|
1260 }
|
yuuji@0
|
1261 /* note file offset of header */
|
yuuji@0
|
1262 elt->private.special.offset = curpos;
|
yuuji@0
|
1263 /* and internal header size */
|
yuuji@0
|
1264 elt->private.special.text.size = i;
|
yuuji@0
|
1265 /* header size not known yet */
|
yuuji@0
|
1266 elt->private.msg.header.text.size = 0;
|
yuuji@0
|
1267 elt->rfc822_size = j; /* note message size */
|
yuuji@0
|
1268 /* calculate system flags */
|
yuuji@0
|
1269 if (k & fSEEN) elt->seen = T;
|
yuuji@0
|
1270 if (k & fDELETED) elt->deleted = T;
|
yuuji@0
|
1271 if (k & fFLAGGED) elt->flagged = T;
|
yuuji@0
|
1272 if (k & fANSWERED) elt->answered = T;
|
yuuji@0
|
1273 if (k & fDRAFT) elt->draft = T;
|
yuuji@0
|
1274 t[8] = '\0'; /* get user flags value */
|
yuuji@0
|
1275 elt->user_flags = strtoul (t,NIL,16);
|
yuuji@0
|
1276 /* UID already assigned? */
|
yuuji@0
|
1277 if (!(elt->private.uid = m) || !(k & fOLD)) {
|
yuuji@0
|
1278 elt->recent = T; /* no, mark as recent */
|
yuuji@0
|
1279 ++recent; /* count up a new recent message */
|
yuuji@0
|
1280 dirty = T; /* and must rewrite header */
|
yuuji@0
|
1281 /* assign new UID */
|
yuuji@0
|
1282 if (!elt->private.uid) elt->private.uid = ++stream->uid_last;
|
yuuji@0
|
1283 mbx_update_status (stream,elt->msgno,NIL);
|
yuuji@0
|
1284 }
|
yuuji@0
|
1285 /* update last parsed UID */
|
yuuji@0
|
1286 lastuid = elt->private.uid;
|
yuuji@0
|
1287 }
|
yuuji@0
|
1288 curpos += i + j; /* update position */
|
yuuji@0
|
1289 }
|
yuuji@0
|
1290
|
yuuji@0
|
1291 if (dirty && !stream->rdonly){/* update header */
|
yuuji@0
|
1292 mbx_update_header (stream);
|
yuuji@0
|
1293 fsync (LOCAL->fd); /* make sure all the UID updates take */
|
yuuji@0
|
1294 }
|
yuuji@0
|
1295 /* update parsed file size and time */
|
yuuji@0
|
1296 LOCAL->filesize = sbuf.st_size;
|
yuuji@0
|
1297 fstat (LOCAL->fd,&sbuf); /* get status again to ensure time is right */
|
yuuji@0
|
1298 LOCAL->filetime = sbuf.st_mtime;
|
yuuji@0
|
1299 if (added && !stream->rdonly){/* make sure atime updated */
|
yuuji@0
|
1300 struct utimbuf times;
|
yuuji@0
|
1301 times.actime = time (0);
|
yuuji@0
|
1302 times.modtime = LOCAL->filetime;
|
yuuji@0
|
1303 utime (stream->mailbox,×);
|
yuuji@0
|
1304 }
|
yuuji@0
|
1305 stream->silent = silent; /* can pass up events now */
|
yuuji@0
|
1306 mail_exists (stream,nmsgs); /* notify upper level of new mailbox size */
|
yuuji@0
|
1307 mail_recent (stream,recent); /* and of change in recent messages */
|
yuuji@0
|
1308 return LONGT; /* return the winnage */
|
yuuji@0
|
1309 }
|
yuuji@0
|
1310
|
yuuji@0
|
1311 /* MBX get cache element with status updating from file
|
yuuji@0
|
1312 * Accepts: MAIL stream
|
yuuji@0
|
1313 * message number
|
yuuji@0
|
1314 * expunge OK flag
|
yuuji@0
|
1315 * Returns: cache element
|
yuuji@0
|
1316 */
|
yuuji@0
|
1317
|
yuuji@0
|
1318 MESSAGECACHE *mbx_elt (MAILSTREAM *stream,unsigned long msgno,long expok)
|
yuuji@0
|
1319 {
|
yuuji@0
|
1320 MESSAGECACHE *elt = mail_elt (stream,msgno);
|
yuuji@0
|
1321 struct { /* old flags */
|
yuuji@0
|
1322 unsigned int seen : 1;
|
yuuji@0
|
1323 unsigned int deleted : 1;
|
yuuji@0
|
1324 unsigned int flagged : 1;
|
yuuji@0
|
1325 unsigned int answered : 1;
|
yuuji@0
|
1326 unsigned int draft : 1;
|
yuuji@0
|
1327 unsigned long user_flags;
|
yuuji@0
|
1328 } old;
|
yuuji@0
|
1329 old.seen = elt->seen; old.deleted = elt->deleted; old.flagged = elt->flagged;
|
yuuji@0
|
1330 old.answered = elt->answered; old.draft = elt->draft;
|
yuuji@0
|
1331 old.user_flags = elt->user_flags;
|
yuuji@0
|
1332 /* get new flags */
|
yuuji@0
|
1333 if (mbx_read_flags (stream,elt) && expok) {
|
yuuji@0
|
1334 mail_expunged (stream,elt->msgno);
|
yuuji@0
|
1335 return NIL; /* return this message was expunged */
|
yuuji@0
|
1336 }
|
yuuji@0
|
1337 if ((old.seen != elt->seen) || (old.deleted != elt->deleted) ||
|
yuuji@0
|
1338 (old.flagged != elt->flagged) || (old.answered != elt->answered) ||
|
yuuji@0
|
1339 (old.draft != elt->draft) || (old.user_flags != elt->user_flags))
|
yuuji@0
|
1340 mm_flags (stream,msgno); /* let top level know */
|
yuuji@0
|
1341 return elt;
|
yuuji@0
|
1342 }
|
yuuji@0
|
1343
|
yuuji@0
|
1344 /* MBX read flags from file
|
yuuji@0
|
1345 * Accepts: MAIL stream
|
yuuji@0
|
1346 * cache element
|
yuuji@0
|
1347 * Returns: non-NIL if message expunged
|
yuuji@0
|
1348 */
|
yuuji@0
|
1349
|
yuuji@0
|
1350 unsigned long mbx_read_flags (MAILSTREAM *stream,MESSAGECACHE *elt)
|
yuuji@0
|
1351 {
|
yuuji@0
|
1352 unsigned long i;
|
yuuji@0
|
1353 struct stat sbuf;
|
yuuji@0
|
1354 fstat (LOCAL->fd,&sbuf); /* get status */
|
yuuji@0
|
1355 /* make sure file size is good */
|
yuuji@0
|
1356 if (sbuf.st_size < LOCAL->filesize) {
|
yuuji@0
|
1357 sprintf (LOCAL->buf,"Mailbox shrank from %lu to %lu in flag read!",
|
yuuji@0
|
1358 (unsigned long) LOCAL->filesize,(unsigned long) sbuf.st_size);
|
yuuji@0
|
1359 fatal (LOCAL->buf);
|
yuuji@0
|
1360 }
|
yuuji@0
|
1361 /* set the seek pointer */
|
yuuji@0
|
1362 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
|
yuuji@0
|
1363 elt->private.special.text.size - 24,L_SET);
|
yuuji@0
|
1364 /* read the new flags */
|
yuuji@0
|
1365 if (read (LOCAL->fd,LOCAL->buf,14) < 0) {
|
yuuji@0
|
1366 sprintf (LOCAL->buf,"Unable to read new status: %s",strerror (errno));
|
yuuji@0
|
1367 fatal (LOCAL->buf);
|
yuuji@0
|
1368 }
|
yuuji@0
|
1369 if ((LOCAL->buf[0] != ';') || (LOCAL->buf[13] != '-')) {
|
yuuji@0
|
1370 LOCAL->buf[14] = '\0'; /* tie off buffer for error message */
|
yuuji@0
|
1371 sprintf (LOCAL->buf+50,"Invalid flags for message %lu (%lu %lu): %s",
|
yuuji@0
|
1372 elt->msgno,elt->private.special.offset,
|
yuuji@0
|
1373 elt->private.special.text.size,(char *) LOCAL->buf);
|
yuuji@0
|
1374 fatal (LOCAL->buf+50);
|
yuuji@0
|
1375 }
|
yuuji@0
|
1376 LOCAL->buf[13] = '\0'; /* tie off buffer */
|
yuuji@0
|
1377 /* calculate system flags */
|
yuuji@0
|
1378 i = strtoul (LOCAL->buf+9,NIL,16);
|
yuuji@0
|
1379 elt->seen = i & fSEEN ? T : NIL;
|
yuuji@0
|
1380 elt->deleted = i & fDELETED ? T : NIL;
|
yuuji@0
|
1381 elt->flagged = i & fFLAGGED ? T : NIL;
|
yuuji@0
|
1382 elt->answered = i & fANSWERED ? T : NIL;
|
yuuji@0
|
1383 elt->draft = i & fDRAFT ? T : NIL;
|
yuuji@0
|
1384 LOCAL->expunged |= i & fEXPUNGED ? T : NIL;
|
yuuji@0
|
1385 LOCAL->buf[9] = '\0'; /* tie off flags */
|
yuuji@0
|
1386 /* get user flags value */
|
yuuji@0
|
1387 elt->user_flags = strtoul (LOCAL->buf+1,NIL,16);
|
yuuji@0
|
1388 elt->valid = T; /* have valid flags now */
|
yuuji@0
|
1389 return i & fEXPUNGED;
|
yuuji@0
|
1390 }
|
yuuji@0
|
1391
|
yuuji@0
|
1392 /* MBX update header
|
yuuji@0
|
1393 * Accepts: MAIL stream
|
yuuji@0
|
1394 */
|
yuuji@0
|
1395
|
yuuji@0
|
1396 #define NTKLUDGEOFFSET 7
|
yuuji@0
|
1397
|
yuuji@0
|
1398 void mbx_update_header (MAILSTREAM *stream)
|
yuuji@0
|
1399 {
|
yuuji@0
|
1400 int i;
|
yuuji@0
|
1401 char *s = LOCAL->buf;
|
yuuji@0
|
1402 memset (s,'\0',HDRSIZE); /* initialize header */
|
yuuji@0
|
1403 sprintf (s,"*mbx*\015\012%08lx%08lx\015\012",
|
yuuji@0
|
1404 stream->uid_validity,stream->uid_last);
|
yuuji@0
|
1405 for (i = 0; (i < NUSERFLAGS) && stream->user_flags[i]; ++i)
|
yuuji@0
|
1406 sprintf (s += strlen (s),"%s\015\012",stream->user_flags[i]);
|
yuuji@0
|
1407 LOCAL->ffuserflag = i; /* first free user flag */
|
yuuji@0
|
1408 /* can we create more user flags? */
|
yuuji@0
|
1409 stream->kwd_create = (i < NUSERFLAGS) ? T : NIL;
|
yuuji@0
|
1410 /* write reserved lines */
|
yuuji@0
|
1411 while (i++ < NUSERFLAGS) strcat (s,"\015\012");
|
yuuji@0
|
1412 while (T) { /* rewind file */
|
yuuji@0
|
1413 lseek (LOCAL->fd,NTKLUDGEOFFSET,L_SET);
|
yuuji@0
|
1414 /* write new header */
|
yuuji@0
|
1415 if (write (LOCAL->fd,LOCAL->buf + NTKLUDGEOFFSET,
|
yuuji@0
|
1416 HDRSIZE - NTKLUDGEOFFSET) > 0) break;
|
yuuji@0
|
1417 mm_notify (stream,strerror (errno),WARN);
|
yuuji@0
|
1418 mm_diskerror (stream,errno,T);
|
yuuji@0
|
1419 }
|
yuuji@0
|
1420 }
|
yuuji@0
|
1421
|
yuuji@0
|
1422 /* MBX update status string
|
yuuji@0
|
1423 * Accepts: MAIL stream
|
yuuji@0
|
1424 * message number
|
yuuji@0
|
1425 * flags
|
yuuji@0
|
1426 */
|
yuuji@0
|
1427
|
yuuji@0
|
1428 void mbx_update_status (MAILSTREAM *stream,unsigned long msgno,long flags)
|
yuuji@0
|
1429 {
|
yuuji@0
|
1430 struct stat sbuf;
|
yuuji@0
|
1431 MESSAGECACHE *elt = mail_elt (stream,msgno);
|
yuuji@0
|
1432 /* readonly */
|
yuuji@0
|
1433 if (stream->rdonly || !elt->valid) mbx_read_flags (stream,elt);
|
yuuji@0
|
1434 else { /* readwrite */
|
yuuji@0
|
1435 fstat (LOCAL->fd,&sbuf); /* get status */
|
yuuji@0
|
1436 /* make sure file size is good */
|
yuuji@0
|
1437 if (sbuf.st_size < LOCAL->filesize) {
|
yuuji@0
|
1438 sprintf (LOCAL->buf,"Mailbox shrank from %lu to %lu in flag update!",
|
yuuji@0
|
1439 (unsigned long) LOCAL->filesize,(unsigned long) sbuf.st_size);
|
yuuji@0
|
1440 fatal (LOCAL->buf);
|
yuuji@0
|
1441 }
|
yuuji@0
|
1442 /* set the seek pointer */
|
yuuji@0
|
1443 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
|
yuuji@0
|
1444 elt->private.special.text.size - 24,L_SET);
|
yuuji@0
|
1445 /* read the new flags */
|
yuuji@0
|
1446 if (read (LOCAL->fd,LOCAL->buf,14) < 0) {
|
yuuji@0
|
1447 sprintf (LOCAL->buf,"Unable to read old status: %s",strerror (errno));
|
yuuji@0
|
1448 fatal (LOCAL->buf);
|
yuuji@0
|
1449 }
|
yuuji@0
|
1450 if ((LOCAL->buf[0] != ';') || (LOCAL->buf[13] != '-')) {
|
yuuji@0
|
1451 LOCAL->buf[14] = '\0'; /* tie off buffer for error message */
|
yuuji@0
|
1452 sprintf (LOCAL->buf+50,"Invalid flags for message %lu (%lu %lu): %s",
|
yuuji@0
|
1453 elt->msgno,elt->private.special.offset,
|
yuuji@0
|
1454 elt->private.special.text.size,(char *) LOCAL->buf);
|
yuuji@0
|
1455 fatal (LOCAL->buf+50);
|
yuuji@0
|
1456 }
|
yuuji@0
|
1457 /* print new flag string */
|
yuuji@0
|
1458 sprintf (LOCAL->buf,"%08lx%04x-%08lx",elt->user_flags,(unsigned)
|
yuuji@0
|
1459 (((elt->deleted && flags) ?
|
yuuji@0
|
1460 fEXPUNGED : (strtoul (LOCAL->buf+9,NIL,16)) & fEXPUNGED) +
|
yuuji@0
|
1461 (fSEEN * elt->seen) + (fDELETED * elt->deleted) +
|
yuuji@0
|
1462 (fFLAGGED * elt->flagged) + (fANSWERED * elt->answered) +
|
yuuji@0
|
1463 (fDRAFT * elt->draft) + fOLD),elt->private.uid);
|
yuuji@0
|
1464 while (T) { /* get to that place in the file */
|
yuuji@0
|
1465 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
|
yuuji@0
|
1466 elt->private.special.text.size - 23,L_SET);
|
yuuji@0
|
1467 /* write new flags and UID */
|
yuuji@0
|
1468 if (write (LOCAL->fd,LOCAL->buf,21) > 0) break;
|
yuuji@0
|
1469 mm_notify (stream,strerror (errno),WARN);
|
yuuji@0
|
1470 mm_diskerror (stream,errno,T);
|
yuuji@0
|
1471 }
|
yuuji@0
|
1472 }
|
yuuji@0
|
1473 }
|
yuuji@0
|
1474
|
yuuji@0
|
1475 /* MBX locate header for a message
|
yuuji@0
|
1476 * Accepts: MAIL stream
|
yuuji@0
|
1477 * message number
|
yuuji@0
|
1478 * pointer to returned header size
|
yuuji@0
|
1479 * pointer to possible returned header
|
yuuji@0
|
1480 * Returns: position of header in file
|
yuuji@0
|
1481 */
|
yuuji@0
|
1482
|
yuuji@0
|
1483 #define HDRBUFLEN 16384 /* good enough for most headers */
|
yuuji@0
|
1484 #define SLOP 4 /* CR LF CR LF */
|
yuuji@0
|
1485
|
yuuji@0
|
1486 unsigned long mbx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
|
yuuji@0
|
1487 unsigned long *size,char **hdr)
|
yuuji@0
|
1488 {
|
yuuji@0
|
1489 unsigned long siz,done;
|
yuuji@0
|
1490 long i;
|
yuuji@0
|
1491 unsigned char *s,*t,*te;
|
yuuji@0
|
1492 MESSAGECACHE *elt = mail_elt (stream,msgno);
|
yuuji@0
|
1493 unsigned long ret = elt->private.special.offset +
|
yuuji@0
|
1494 elt->private.special.text.size;
|
yuuji@0
|
1495 if (hdr) *hdr = NIL; /* assume no header returned */
|
yuuji@0
|
1496 /* is header size known? */
|
yuuji@0
|
1497 if (*size = elt->private.msg.header.text.size) return ret;
|
yuuji@0
|
1498 /* paranoia check */
|
yuuji@0
|
1499 if (LOCAL->buflen < (HDRBUFLEN + SLOP))
|
yuuji@0
|
1500 fatal ("LOCAL->buf smaller than HDRBUFLEN");
|
yuuji@0
|
1501 lseek (LOCAL->fd,ret,L_SET); /* get to header position */
|
yuuji@0
|
1502 /* read HDRBUFLEN chunks with 4 byte slop */
|
yuuji@0
|
1503 for (done = siz = 0, s = LOCAL->buf;
|
yuuji@0
|
1504 (i = min ((long) (elt->rfc822_size - done),(long) HDRBUFLEN)) &&
|
yuuji@0
|
1505 (read (LOCAL->fd,s,i) == i);
|
yuuji@0
|
1506 done += i, siz += (t - LOCAL->buf) - SLOP, s = LOCAL->buf + SLOP) {
|
yuuji@0
|
1507 te = (t = s + i) - 12; /* calculate end of fast scan */
|
yuuji@0
|
1508 /* fast scan for CR */
|
yuuji@0
|
1509 for (s = LOCAL->buf; s < te;)
|
yuuji@0
|
1510 if (((*s++ == '\015') || (*s++ == '\015') || (*s++ == '\015') ||
|
yuuji@0
|
1511 (*s++ == '\015') || (*s++ == '\015') || (*s++ == '\015') ||
|
yuuji@0
|
1512 (*s++ == '\015') || (*s++ == '\015') || (*s++ == '\015') ||
|
yuuji@0
|
1513 (*s++ == '\015') || (*s++ == '\015') || (*s++ == '\015')) &&
|
yuuji@0
|
1514 (*s == '\012') && (*++s == '\015') && (*++s == '\012')) {
|
yuuji@0
|
1515 *size = elt->private.msg.header.text.size = siz + (++s - LOCAL->buf);
|
yuuji@0
|
1516 if (hdr) *hdr = LOCAL->buf;
|
yuuji@0
|
1517 return ret;
|
yuuji@0
|
1518 }
|
yuuji@0
|
1519 for (te = t - 3; (s < te);) /* final character-at-a-time scan */
|
yuuji@0
|
1520 if ((*s++ == '\015') && (*s == '\012') && (*++s == '\015') &&
|
yuuji@0
|
1521 (*++s == '\012')) {
|
yuuji@0
|
1522 *size = elt->private.msg.header.text.size = siz + (++s - LOCAL->buf);
|
yuuji@0
|
1523 if (hdr) *hdr = LOCAL->buf;
|
yuuji@0
|
1524 return ret;
|
yuuji@0
|
1525 }
|
yuuji@0
|
1526 if (i <= SLOP) break; /* end of data */
|
yuuji@0
|
1527 /* slide over last 4 bytes */
|
yuuji@0
|
1528 memmove (LOCAL->buf,t - SLOP,SLOP);
|
yuuji@0
|
1529 hdr = NIL; /* can't return header this way */
|
yuuji@0
|
1530 }
|
yuuji@0
|
1531 /* not found: header consumes entire message */
|
yuuji@0
|
1532 elt->private.msg.header.text.size = *size = elt->rfc822_size;
|
yuuji@0
|
1533 if (hdr) *hdr = LOCAL->buf; /* possibly return header too */
|
yuuji@0
|
1534 return ret;
|
yuuji@0
|
1535 }
|
yuuji@0
|
1536
|
yuuji@0
|
1537 /* MBX mail rewrite mailbox
|
yuuji@0
|
1538 * Accepts: MAIL stream
|
yuuji@0
|
1539 * pointer to return reclaimed size
|
yuuji@0
|
1540 * flags (0 = no expunge, 1 = expunge deleted, -1 = expunge sequence)
|
yuuji@0
|
1541 * Returns: number of expunged messages
|
yuuji@0
|
1542 */
|
yuuji@0
|
1543
|
yuuji@0
|
1544 unsigned long mbx_rewrite (MAILSTREAM *stream,unsigned long *reclaimed,
|
yuuji@0
|
1545 long flags)
|
yuuji@0
|
1546 {
|
yuuji@0
|
1547 struct utimbuf times;
|
yuuji@0
|
1548 struct stat sbuf;
|
yuuji@0
|
1549 off_t pos,ppos;
|
yuuji@0
|
1550 int ld;
|
yuuji@0
|
1551 unsigned long i,j,k,m,delta;
|
yuuji@0
|
1552 unsigned long n = *reclaimed = 0;
|
yuuji@0
|
1553 unsigned long recent = 0;
|
yuuji@0
|
1554 char lock[MAILTMPLEN];
|
yuuji@0
|
1555 MESSAGECACHE *elt;
|
yuuji@0
|
1556 /* get parse/append permission */
|
yuuji@0
|
1557 if ((ld = lockname (lock,stream->mailbox,LOCK_EX)) < 0) {
|
yuuji@0
|
1558 mm_log ("Unable to lock expunge mailbox",ERROR);
|
yuuji@0
|
1559 return 0;
|
yuuji@0
|
1560 }
|
yuuji@0
|
1561 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
yuuji@0
|
1562 if (LOCAL->filetime && !LOCAL->flagcheck &&
|
yuuji@0
|
1563 (LOCAL->filetime < sbuf.st_mtime)) LOCAL->flagcheck = T;
|
yuuji@0
|
1564 if (!mbx_parse (stream)) { /* make sure see any newly-arrived messages */
|
yuuji@0
|
1565 unlockfd (ld,lock); /* failed?? */
|
yuuji@0
|
1566 return 0;
|
yuuji@0
|
1567 }
|
yuuji@0
|
1568 if (LOCAL->flagcheck) { /* sweep flags if need flagcheck */
|
yuuji@0
|
1569 LOCAL->filetime = sbuf.st_mtime;
|
yuuji@0
|
1570 for (i = 1; i <= stream->nmsgs; ++i) mbx_elt (stream,i,NIL);
|
yuuji@0
|
1571 LOCAL->flagcheck = NIL;
|
yuuji@0
|
1572 }
|
yuuji@0
|
1573
|
yuuji@0
|
1574 /* get exclusive access */
|
yuuji@0
|
1575 if (!flock (LOCAL->fd,LOCK_EX|LOCK_NB)) {
|
yuuji@0
|
1576 mm_critical (stream); /* go critical */
|
yuuji@0
|
1577 for (i = 1,delta = 0,pos = ppos = HDRSIZE; i <= stream->nmsgs; ) {
|
yuuji@0
|
1578 /* note if message not at predicted location */
|
yuuji@0
|
1579 if (m = (elt = mbx_elt (stream,i,NIL))->private.special.offset - ppos) {
|
yuuji@0
|
1580 ppos = elt->private.special.offset;
|
yuuji@0
|
1581 *reclaimed += m; /* note reclaimed message space */
|
yuuji@0
|
1582 delta += m; /* and as expunge delta */
|
yuuji@0
|
1583 }
|
yuuji@0
|
1584 /* number of bytes to smash or preserve */
|
yuuji@0
|
1585 ppos += (k = elt->private.special.text.size + elt->rfc822_size);
|
yuuji@0
|
1586 /* if need to expunge this message*/
|
yuuji@0
|
1587 if (flags && elt->deleted && ((flags > 0) || elt->sequence)) {
|
yuuji@0
|
1588 delta += k; /* number of bytes to delete */
|
yuuji@0
|
1589 mail_expunged(stream,i);/* notify upper levels */
|
yuuji@0
|
1590 n++; /* count up one more expunged message */
|
yuuji@0
|
1591 }
|
yuuji@0
|
1592 else { /* preserved message */
|
yuuji@0
|
1593 i++; /* count this message */
|
yuuji@0
|
1594 if (elt->recent) ++recent;
|
yuuji@0
|
1595 if (delta) { /* moved, note first byte to preserve */
|
yuuji@0
|
1596 j = elt->private.special.offset;
|
yuuji@0
|
1597 do { /* read from source position */
|
yuuji@0
|
1598 m = min (k,LOCAL->buflen);
|
yuuji@0
|
1599 lseek (LOCAL->fd,j,L_SET);
|
yuuji@0
|
1600 read (LOCAL->fd,LOCAL->buf,m);
|
yuuji@0
|
1601 pos = j - delta; /* write to destination position */
|
yuuji@0
|
1602 while (T) {
|
yuuji@0
|
1603 lseek (LOCAL->fd,pos,L_SET);
|
yuuji@0
|
1604 if (write (LOCAL->fd,LOCAL->buf,m) > 0) break;
|
yuuji@0
|
1605 mm_notify (stream,strerror (errno),WARN);
|
yuuji@0
|
1606 mm_diskerror (stream,errno,T);
|
yuuji@0
|
1607 }
|
yuuji@0
|
1608 pos += m; /* new position */
|
yuuji@0
|
1609 j += m; /* next chunk, perhaps */
|
yuuji@0
|
1610 } while (k -= m); /* until done */
|
yuuji@0
|
1611 /* note the new address of this text */
|
yuuji@0
|
1612 elt->private.special.offset -= delta;
|
yuuji@0
|
1613 }
|
yuuji@0
|
1614 /* preserved but no deleted messages yet */
|
yuuji@0
|
1615 else pos = elt->private.special.offset + k;
|
yuuji@0
|
1616 }
|
yuuji@0
|
1617 }
|
yuuji@0
|
1618 /* deltaed file size match position? */
|
yuuji@0
|
1619 if (m = (LOCAL->filesize -= delta) - pos) {
|
yuuji@0
|
1620 *reclaimed += m; /* probably an fEXPUNGED msg */
|
yuuji@0
|
1621 LOCAL->filesize = pos; /* set correct size */
|
yuuji@0
|
1622 }
|
yuuji@0
|
1623 /* truncate file after last message */
|
yuuji@0
|
1624 ftruncate (LOCAL->fd,LOCAL->filesize);
|
yuuji@0
|
1625 fsync (LOCAL->fd); /* force disk update */
|
yuuji@0
|
1626 mm_nocritical (stream); /* release critical */
|
yuuji@0
|
1627 flock (LOCAL->fd,LOCK_SH); /* allow sharers again */
|
yuuji@0
|
1628 }
|
yuuji@0
|
1629
|
yuuji@0
|
1630 else { /* can't get exclusive */
|
yuuji@0
|
1631 flock (LOCAL->fd,LOCK_SH); /* recover previous shared mailbox lock */
|
yuuji@0
|
1632 /* do hide-expunge when shared */
|
yuuji@0
|
1633 if (flags) for (i = 1; i <= stream->nmsgs; ) {
|
yuuji@0
|
1634 if (elt = mbx_elt (stream,i,T)) {
|
yuuji@0
|
1635 /* make the message invisible */
|
yuuji@0
|
1636 if (elt->deleted && ((flags > 0) || elt->sequence)) {
|
yuuji@0
|
1637 mbx_update_status (stream,elt->msgno,LONGT);
|
yuuji@0
|
1638 /* notify upper levels */
|
yuuji@0
|
1639 mail_expunged (stream,i);
|
yuuji@0
|
1640 n++; /* count up one more expunged message */
|
yuuji@0
|
1641 }
|
yuuji@0
|
1642 else {
|
yuuji@0
|
1643 i++; /* preserved message */
|
yuuji@0
|
1644 if (elt->recent) ++recent;
|
yuuji@0
|
1645 }
|
yuuji@0
|
1646 }
|
yuuji@0
|
1647 else n++; /* count up one more expunged message */
|
yuuji@0
|
1648 }
|
yuuji@0
|
1649 fsync (LOCAL->fd); /* force disk update */
|
yuuji@0
|
1650 }
|
yuuji@0
|
1651 fstat (LOCAL->fd,&sbuf); /* get new write time */
|
yuuji@0
|
1652 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
yuuji@0
|
1653 times.actime = time (0); /* reset atime to now */
|
yuuji@0
|
1654 utime (stream->mailbox,×);
|
yuuji@0
|
1655 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
yuuji@0
|
1656 /* notify upper level of new mailbox size */
|
yuuji@0
|
1657 mail_exists (stream,stream->nmsgs);
|
yuuji@0
|
1658 mail_recent (stream,recent);
|
yuuji@0
|
1659 return n; /* return number of expunged messages */
|
yuuji@0
|
1660 }
|
yuuji@0
|
1661
|
yuuji@0
|
1662 /* MBX mail lock for flag updating
|
yuuji@0
|
1663 * Accepts: stream
|
yuuji@0
|
1664 * Returns: T if successful, NIL if failure
|
yuuji@0
|
1665 */
|
yuuji@0
|
1666
|
yuuji@0
|
1667 long mbx_flaglock (MAILSTREAM *stream)
|
yuuji@0
|
1668 {
|
yuuji@0
|
1669 struct stat sbuf;
|
yuuji@0
|
1670 unsigned long i;
|
yuuji@0
|
1671 int ld;
|
yuuji@0
|
1672 char lock[MAILTMPLEN];
|
yuuji@0
|
1673 /* no-op if readonly or already locked */
|
yuuji@0
|
1674 if (!stream->rdonly && LOCAL && (LOCAL->fd >= 0) && (LOCAL->ld < 0)) {
|
yuuji@0
|
1675 /* lock now */
|
yuuji@0
|
1676 if ((ld = lockname (lock,stream->mailbox,LOCK_EX)) < 0) return NIL;
|
yuuji@0
|
1677 if (!LOCAL->flagcheck) { /* don't do this if flagcheck already needed */
|
yuuji@0
|
1678 if (LOCAL->filetime) { /* know previous time? */
|
yuuji@0
|
1679 fstat (LOCAL->fd,&sbuf);/* get current write time */
|
yuuji@0
|
1680 if (LOCAL->filetime < sbuf.st_mtime) LOCAL->flagcheck = T;
|
yuuji@0
|
1681 LOCAL->filetime = 0; /* don't do this test for any other messages */
|
yuuji@0
|
1682 }
|
yuuji@0
|
1683 if (!mbx_parse (stream)) {/* parse mailbox */
|
yuuji@0
|
1684 unlockfd (ld,lock); /* shouldn't happen */
|
yuuji@0
|
1685 return NIL;
|
yuuji@0
|
1686 }
|
yuuji@0
|
1687 if (LOCAL->flagcheck) /* invalidate cache if flagcheck */
|
yuuji@0
|
1688 for (i = 1; i <= stream->nmsgs; ++i) mail_elt (stream,i)->valid = NIL;
|
yuuji@0
|
1689 }
|
yuuji@0
|
1690 LOCAL->ld = ld; /* copy to stream for subsequent calls */
|
yuuji@0
|
1691 memcpy (LOCAL->lock,lock,MAILTMPLEN);
|
yuuji@0
|
1692 }
|
yuuji@0
|
1693 return LONGT;
|
yuuji@0
|
1694 }
|