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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: MTX 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: 22 May 1990
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26 * Last Edited: 15 June 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 /* MTX I/O stream local data */
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52
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53 typedef struct mtx_local {
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54 unsigned int shouldcheck: 1; /* if ping should do a check instead */
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55 unsigned int mustcheck: 1; /* if ping must do a check instead */
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56 int fd; /* file descriptor for I/O */
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57 off_t filesize; /* file size parsed */
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58 time_t filetime; /* last file time */
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59 time_t lastsnarf; /* last snarf time */
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60 unsigned char *buf; /* temporary buffer */
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61 unsigned long buflen; /* current size of temporary buffer */
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62 } MTXLOCAL;
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63
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64
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65 /* Convenient access to local data */
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66
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67 #define LOCAL ((MTXLOCAL *) stream->local)
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68
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69
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70 /* Function prototypes */
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71
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72 DRIVER *mtx_valid (char *name);
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73 int mtx_isvalid (char *name,char *file);
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74 void *mtx_parameters (long function,void *value);
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75 void mtx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
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76 void mtx_list (MAILSTREAM *stream,char *ref,char *pat);
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77 void mtx_lsub (MAILSTREAM *stream,char *ref,char *pat);
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78 long mtx_create (MAILSTREAM *stream,char *mailbox);
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79 long mtx_delete (MAILSTREAM *stream,char *mailbox);
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80 long mtx_rename (MAILSTREAM *stream,char *old,char *newname);
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81 long mtx_status (MAILSTREAM *stream,char *mbx,long flags);
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82 MAILSTREAM *mtx_open (MAILSTREAM *stream);
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83 void mtx_close (MAILSTREAM *stream,long options);
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84 void mtx_flags (MAILSTREAM *stream,char *sequence,long flags);
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85 char *mtx_header (MAILSTREAM *stream,unsigned long msgno,
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86 unsigned long *length,long flags);
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87 long mtx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags);
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88 void mtx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags);
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89 void mtx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt);
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90 long mtx_ping (MAILSTREAM *stream);
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91 void mtx_check (MAILSTREAM *stream);
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92 void mtx_snarf (MAILSTREAM *stream);
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93 long mtx_expunge (MAILSTREAM *stream,char *sequence,long options);
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94 long mtx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
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95 long mtx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
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96
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97 long mtx_parse (MAILSTREAM *stream);
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98 MESSAGECACHE *mtx_elt (MAILSTREAM *stream,unsigned long msgno);
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99 void mtx_read_flags (MAILSTREAM *stream,MESSAGECACHE *elt);
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100 void mtx_update_status (MAILSTREAM *stream,unsigned long msgno,long syncflag);
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101 unsigned long mtx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
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102 unsigned long *size);
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103
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104
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105 /* MTX mail routines */
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106
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107
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108 /* Driver dispatch used by MAIL */
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109
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110 DRIVER mtxdriver = {
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111 "mtx", /* driver name */
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112 /* driver flags */
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113 DR_LOCAL|DR_MAIL|DR_CRLF|DR_NOSTICKY,
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114 (DRIVER *) NIL, /* next driver */
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115 mtx_valid, /* mailbox is valid for us */
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116 mtx_parameters, /* manipulate parameters */
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117 mtx_scan, /* scan mailboxes */
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118 mtx_list, /* list mailboxes */
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119 mtx_lsub, /* list subscribed mailboxes */
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120 NIL, /* subscribe to mailbox */
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121 NIL, /* unsubscribe from mailbox */
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122 mtx_create, /* create mailbox */
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123 mtx_delete, /* delete mailbox */
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124 mtx_rename, /* rename mailbox */
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125 mail_status_default, /* status of mailbox */
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126 mtx_open, /* open mailbox */
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127 mtx_close, /* close mailbox */
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128 mtx_flags, /* fetch message "fast" attributes */
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129 mtx_flags, /* fetch message flags */
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130 NIL, /* fetch overview */
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131 NIL, /* fetch message envelopes */
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132 mtx_header, /* fetch message header */
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133 mtx_text, /* fetch message body */
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134 NIL, /* fetch partial message text */
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135 NIL, /* unique identifier */
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136 NIL, /* message number */
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137 mtx_flag, /* modify flags */
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138 mtx_flagmsg, /* per-message modify flags */
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139 NIL, /* search for message based on criteria */
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140 NIL, /* sort messages */
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141 NIL, /* thread messages */
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142 mtx_ping, /* ping mailbox to see if still alive */
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143 mtx_check, /* check for new messages */
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144 mtx_expunge, /* expunge deleted messages */
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145 mtx_copy, /* copy messages to another mailbox */
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146 mtx_append, /* append string message to mailbox */
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147 NIL /* garbage collect stream */
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148 };
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149
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150 /* prototype stream */
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151 MAILSTREAM mtxproto = {&mtxdriver};
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152
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153 /* MTX mail validate mailbox
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154 * Accepts: mailbox name
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155 * Returns: our driver if name is valid, NIL otherwise
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156 */
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157
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158 DRIVER *mtx_valid (char *name)
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159 {
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160 char tmp[MAILTMPLEN];
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161 return mtx_isvalid (name,tmp) ? &mtxdriver : NIL;
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162 }
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163
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164
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165 /* MTX mail test for valid mailbox
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166 * Accepts: mailbox name
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167 * buffer to return file name
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168 * Returns: T if valid, NIL otherwise
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169 */
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170
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171 int mtx_isvalid (char *name,char *file)
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172 {
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173 int fd;
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174 int ret = NIL;
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175 char *s,tmp[MAILTMPLEN];
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176 struct stat sbuf;
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177 struct utimbuf times;
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178 errno = EINVAL; /* assume invalid argument */
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179 /* if file, get its status */
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180 if ((s = dummy_file (file,name)) && !stat (s,&sbuf) &&
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181 ((sbuf.st_mode & S_IFMT) == S_IFREG)) {
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182 if (!sbuf.st_size)errno = 0;/* empty file */
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183 else if ((fd = open (file,O_BINARY|O_RDONLY,NIL)) >= 0) {
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184 memset (tmp,'\0',MAILTMPLEN);
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185 if ((read (fd,tmp,64) >= 0) && (s = strchr (tmp,'\015')) &&
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186 (s[1] == '\012')) { /* valid format? */
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187 *s = '\0'; /* tie off header */
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188 /* must begin with dd-mmm-yy" */
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189 ret = (((tmp[2] == '-' && tmp[6] == '-') ||
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190 (tmp[1] == '-' && tmp[5] == '-')) &&
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191 (s = strchr (tmp+18,',')) && strchr (s+2,';')) ? T : NIL;
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192 }
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193 else errno = -1; /* bogus format */
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194 close (fd); /* close the file */
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195 /* \Marked status? */
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196 if (sbuf.st_ctime > sbuf.st_atime) {
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197 /* preserve atime and mtime */
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198 times.actime = sbuf.st_atime;
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199 times.modtime = sbuf.st_mtime;
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200 utime (file,×); /* set the times */
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201 }
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202 }
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203 }
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204 /* in case INBOX but not mtx format */
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205 else if ((errno == ENOENT) && !compare_cstring (name,"INBOX")) errno = -1;
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206 return ret; /* return what we should */
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207 }
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208
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209
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210 /* MTX manipulate driver parameters
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211 * Accepts: function code
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212 * function-dependent value
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213 * Returns: function-dependent return value
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214 */
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215
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216 void *mtx_parameters (long function,void *value)
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217 {
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218 return NIL;
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219 }
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220
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221 /* MTX mail scan mailboxes
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222 * Accepts: mail stream
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223 * reference
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224 * pattern to search
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225 * string to scan
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226 */
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227
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228 void mtx_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
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229 {
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230 if (stream) dummy_scan (NIL,ref,pat,contents);
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231 }
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232
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233
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234 /* MTX mail list mailboxes
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235 * Accepts: mail stream
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236 * reference
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237 * pattern to search
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238 */
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239
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240 void mtx_list (MAILSTREAM *stream,char *ref,char *pat)
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241 {
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242 if (stream) dummy_list (NIL,ref,pat);
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243 }
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244
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245
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246 /* MTX mail list subscribed mailboxes
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247 * Accepts: mail stream
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248 * reference
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249 * pattern to search
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250 */
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251
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252 void mtx_lsub (MAILSTREAM *stream,char *ref,char *pat)
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253 {
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254 if (stream) dummy_lsub (NIL,ref,pat);
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255 }
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256
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257 /* MTX mail create mailbox
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258 * Accepts: MAIL stream
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259 * mailbox name to create
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260 * Returns: T on success, NIL on failure
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261 */
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262
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263 long mtx_create (MAILSTREAM *stream,char *mailbox)
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264 {
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265 char *s,mbx[MAILTMPLEN];
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266 if (s = dummy_file (mbx,mailbox)) return dummy_create (stream,s);
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267 sprintf (mbx,"Can't create %.80s: invalid name",mailbox);
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268 mm_log (mbx,ERROR);
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269 return NIL;
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270 }
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271
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272
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273 /* MTX mail delete mailbox
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274 * Accepts: MAIL stream
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275 * mailbox name to delete
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276 * Returns: T on success, NIL on failure
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277 */
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278
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279 long mtx_delete (MAILSTREAM *stream,char *mailbox)
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280 {
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281 return mtx_rename (stream,mailbox,NIL);
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282 }
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283
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284 /* MTX mail rename mailbox
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285 * Accepts: MAIL stream
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286 * old mailbox name
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287 * new mailbox name (or NIL for delete)
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288 * Returns: T on success, NIL on failure
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289 */
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290
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291 long mtx_rename (MAILSTREAM *stream,char *old,char *newname)
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292 {
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293 long ret = LONGT;
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294 char c,*s,tmp[MAILTMPLEN],file[MAILTMPLEN],lock[MAILTMPLEN];
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295 int fd,ld;
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296 struct stat sbuf;
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297 if (!dummy_file (file,old) ||
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298 (newname && (!((s = mailboxfile (tmp,newname)) && *s) ||
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yuuji@0
|
299 ((s = strrchr (tmp,'\\')) && !s[1])))) {
|
|
yuuji@0
|
300 sprintf (tmp,newname ?
|
|
yuuji@0
|
301 "Can't rename mailbox %.80s to %.80s: invalid name" :
|
|
yuuji@0
|
302 "Can't delete mailbox %.80s: invalid name",
|
|
yuuji@0
|
303 old,newname);
|
|
yuuji@0
|
304 mm_log (tmp,ERROR);
|
|
yuuji@0
|
305 return NIL;
|
|
yuuji@0
|
306 }
|
|
yuuji@0
|
307 if ((fd = open (file,O_BINARY|O_RDWR,NIL)) < 0) {
|
|
yuuji@0
|
308 sprintf (tmp,"Can't open mailbox %.80s: %s",old,strerror (errno));
|
|
yuuji@0
|
309 mm_log (tmp,ERROR);
|
|
yuuji@0
|
310 return NIL;
|
|
yuuji@0
|
311 }
|
|
yuuji@0
|
312 /* get exclusive parse/append permission */
|
|
yuuji@0
|
313 if ((ld = lockname (lock,file,LOCK_EX)) < 0) {
|
|
yuuji@0
|
314 mm_log ("Unable to lock rename mailbox",ERROR);
|
|
yuuji@0
|
315 return NIL;
|
|
yuuji@0
|
316 }
|
|
yuuji@0
|
317 /* lock out other users */
|
|
yuuji@0
|
318 if (flock (fd,LOCK_EX|LOCK_NB)) {
|
|
yuuji@0
|
319 close (fd); /* couldn't lock, give up on it then */
|
|
yuuji@0
|
320 sprintf (tmp,"Mailbox %.80s is in use by another process",old);
|
|
yuuji@0
|
321 mm_log (tmp,ERROR);
|
|
yuuji@0
|
322 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
323 return NIL;
|
|
yuuji@0
|
324 }
|
|
yuuji@0
|
325
|
|
yuuji@0
|
326 if (newname) { /* want rename? */
|
|
yuuji@0
|
327 /* found superior to destination name? */
|
|
yuuji@0
|
328 if ((s = strrchr (tmp,'\\')) && (s != tmp) &&
|
|
yuuji@0
|
329 ((tmp[1] != ':') || (s != tmp + 2))) {
|
|
yuuji@0
|
330 c = s[1]; /* remember character after delimiter */
|
|
yuuji@0
|
331 *s = s[1] = '\0'; /* tie off name at delimiter */
|
|
yuuji@0
|
332 /* name doesn't exist, create it */
|
|
yuuji@0
|
333 if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) {
|
|
yuuji@0
|
334 *s = '\\'; /* restore delimiter */
|
|
yuuji@0
|
335 if (!dummy_create (stream,tmp)) ret = NIL;
|
|
yuuji@0
|
336 }
|
|
yuuji@0
|
337 else *s = '\\'; /* restore delimiter */
|
|
yuuji@0
|
338 s[1] = c; /* restore character after delimiter */
|
|
yuuji@0
|
339 }
|
|
yuuji@0
|
340 flock (fd,LOCK_UN); /* release lock on the file */
|
|
yuuji@0
|
341 close (fd); /* pacify NTFS */
|
|
yuuji@0
|
342 /* rename the file */
|
|
yuuji@0
|
343 if (ret && rename (file,tmp)) {
|
|
yuuji@0
|
344 sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %s",old,newname,
|
|
yuuji@0
|
345 strerror (errno));
|
|
yuuji@0
|
346 mm_log (tmp,ERROR);
|
|
yuuji@0
|
347 ret = NIL; /* set failure */
|
|
yuuji@0
|
348 }
|
|
yuuji@0
|
349 }
|
|
yuuji@0
|
350 else {
|
|
yuuji@0
|
351 flock (fd,LOCK_UN); /* release lock on the file */
|
|
yuuji@0
|
352 close (fd); /* pacify NTFS */
|
|
yuuji@0
|
353 if (unlink (file)) {
|
|
yuuji@0
|
354 sprintf (tmp,"Can't delete mailbox %.80s: %.80s",old,strerror (errno));
|
|
yuuji@0
|
355 mm_log (tmp,ERROR);
|
|
yuuji@0
|
356 ret = NIL; /* set failure */
|
|
yuuji@0
|
357 }
|
|
yuuji@0
|
358 }
|
|
yuuji@0
|
359 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
360 return ret; /* return success */
|
|
yuuji@0
|
361 }
|
|
yuuji@0
|
362
|
|
yuuji@0
|
363 /* MTX mail open
|
|
yuuji@0
|
364 * Accepts: stream to open
|
|
yuuji@0
|
365 * Returns: stream on success, NIL on failure
|
|
yuuji@0
|
366 */
|
|
yuuji@0
|
367
|
|
yuuji@0
|
368 MAILSTREAM *mtx_open (MAILSTREAM *stream)
|
|
yuuji@0
|
369 {
|
|
yuuji@0
|
370 int fd,ld;
|
|
yuuji@0
|
371 char tmp[MAILTMPLEN];
|
|
yuuji@0
|
372 /* return prototype for OP_PROTOTYPE call */
|
|
yuuji@0
|
373 if (!stream) return &mtxproto;
|
|
yuuji@0
|
374 if (stream->local) fatal ("mtx recycle stream");
|
|
yuuji@0
|
375 /* canonicalize the mailbox name */
|
|
yuuji@0
|
376 if (!dummy_file (tmp,stream->mailbox)) {
|
|
yuuji@0
|
377 sprintf (tmp,"Can't open - invalid name: %.80s",stream->mailbox);
|
|
yuuji@0
|
378 mm_log (tmp,ERROR);
|
|
yuuji@0
|
379 }
|
|
yuuji@0
|
380 if (stream->rdonly ||
|
|
yuuji@0
|
381 (fd = open (tmp,O_BINARY|O_RDWR,NIL)) < 0) {
|
|
yuuji@0
|
382 if ((fd = open (tmp,O_BINARY|O_RDONLY,NIL)) < 0) {
|
|
yuuji@0
|
383 sprintf (tmp,"Can't open mailbox: %.80s",strerror (errno));
|
|
yuuji@0
|
384 mm_log (tmp,ERROR);
|
|
yuuji@0
|
385 return NIL;
|
|
yuuji@0
|
386 }
|
|
yuuji@0
|
387 else if (!stream->rdonly) { /* got it, but readonly */
|
|
yuuji@0
|
388 mm_log ("Can't get write access to mailbox, access is readonly",WARN);
|
|
yuuji@0
|
389 stream->rdonly = T;
|
|
yuuji@0
|
390 }
|
|
yuuji@0
|
391 }
|
|
yuuji@0
|
392 stream->local = fs_get (sizeof (MTXLOCAL));
|
|
yuuji@0
|
393 LOCAL->fd = fd; /* bind the file */
|
|
yuuji@0
|
394 LOCAL->buf = (char *) fs_get (CHUNKSIZE);
|
|
yuuji@0
|
395 LOCAL->buflen = CHUNKSIZE - 1;
|
|
yuuji@0
|
396 /* note if an INBOX or not */
|
|
yuuji@0
|
397 stream->inbox = !compare_cstring (stream->mailbox,"INBOX");
|
|
yuuji@0
|
398 fs_give ((void **) &stream->mailbox);
|
|
yuuji@0
|
399 stream->mailbox = cpystr (tmp);
|
|
yuuji@0
|
400 /* get shared parse permission */
|
|
yuuji@0
|
401 if ((ld = lockname (tmp,stream->mailbox,LOCK_SH)) < 0) {
|
|
yuuji@0
|
402 mm_log ("Unable to lock open mailbox",ERROR);
|
|
yuuji@0
|
403 return NIL;
|
|
yuuji@0
|
404 }
|
|
yuuji@0
|
405 flock (LOCAL->fd,LOCK_SH); /* lock the file */
|
|
yuuji@0
|
406 unlockfd (ld,tmp); /* release shared parse permission */
|
|
yuuji@0
|
407 LOCAL->filesize = 0; /* initialize parsed file size */
|
|
yuuji@0
|
408 LOCAL->filetime = 0; /* time not set up yet */
|
|
yuuji@0
|
409 LOCAL->mustcheck = LOCAL->shouldcheck = NIL;
|
|
yuuji@0
|
410 stream->sequence++; /* bump sequence number */
|
|
yuuji@0
|
411 stream->uid_validity = (unsigned long) time (0);
|
|
yuuji@0
|
412 /* parse mailbox */
|
|
yuuji@0
|
413 stream->nmsgs = stream->recent = 0;
|
|
yuuji@0
|
414 if (mtx_ping (stream) && !stream->nmsgs)
|
|
yuuji@0
|
415 mm_log ("Mailbox is empty",(long) NIL);
|
|
yuuji@0
|
416 if (!LOCAL) return NIL; /* failure if stream died */
|
|
yuuji@0
|
417 stream->perm_seen = stream->perm_deleted =
|
|
yuuji@0
|
418 stream->perm_flagged = stream->perm_answered = stream->perm_draft =
|
|
yuuji@0
|
419 stream->rdonly ? NIL : T;
|
|
yuuji@0
|
420 stream->perm_user_flags = stream->rdonly ? NIL : 0xffffffff;
|
|
yuuji@0
|
421 return stream; /* return stream to caller */
|
|
yuuji@0
|
422 }
|
|
yuuji@0
|
423
|
|
yuuji@0
|
424 /* MTX mail close
|
|
yuuji@0
|
425 * Accepts: MAIL stream
|
|
yuuji@0
|
426 * close options
|
|
yuuji@0
|
427 */
|
|
yuuji@0
|
428
|
|
yuuji@0
|
429 void mtx_close (MAILSTREAM *stream,long options)
|
|
yuuji@0
|
430 {
|
|
yuuji@0
|
431 if (stream && LOCAL) { /* only if a file is open */
|
|
yuuji@0
|
432 int silent = stream->silent;
|
|
yuuji@0
|
433 stream->silent = T; /* note this stream is dying */
|
|
yuuji@0
|
434 if (options & CL_EXPUNGE) mtx_expunge (stream,NIL,NIL);
|
|
yuuji@0
|
435 stream->silent = silent; /* restore previous status */
|
|
yuuji@0
|
436 flock (LOCAL->fd,LOCK_UN); /* unlock local file */
|
|
yuuji@0
|
437 close (LOCAL->fd); /* close the local file */
|
|
yuuji@0
|
438 /* free local text buffer */
|
|
yuuji@0
|
439 if (LOCAL->buf) fs_give ((void **) &LOCAL->buf);
|
|
yuuji@0
|
440 /* nuke the local data */
|
|
yuuji@0
|
441 fs_give ((void **) &stream->local);
|
|
yuuji@0
|
442 stream->dtb = NIL; /* log out the DTB */
|
|
yuuji@0
|
443 }
|
|
yuuji@0
|
444 }
|
|
yuuji@0
|
445
|
|
yuuji@0
|
446
|
|
yuuji@0
|
447 /* MTX mail fetch flags
|
|
yuuji@0
|
448 * Accepts: MAIL stream
|
|
yuuji@0
|
449 * sequence
|
|
yuuji@0
|
450 * option flags
|
|
yuuji@0
|
451 * Sniffs at file to see if some other process changed the flags
|
|
yuuji@0
|
452 */
|
|
yuuji@0
|
453
|
|
yuuji@0
|
454 void mtx_flags (MAILSTREAM *stream,char *sequence,long flags)
|
|
yuuji@0
|
455 {
|
|
yuuji@0
|
456 unsigned long i;
|
|
yuuji@0
|
457 if (mtx_ping (stream) && /* ping mailbox, get new status for messages */
|
|
yuuji@0
|
458 ((flags & FT_UID) ? mail_uid_sequence (stream,sequence) :
|
|
yuuji@0
|
459 mail_sequence (stream,sequence)))
|
|
yuuji@0
|
460 for (i = 1; i <= stream->nmsgs; i++)
|
|
yuuji@0
|
461 if (mail_elt (stream,i)->sequence) mtx_elt (stream,i);
|
|
yuuji@0
|
462 }
|
|
yuuji@0
|
463
|
|
yuuji@0
|
464 /* MTX mail fetch message header
|
|
yuuji@0
|
465 * Accepts: MAIL stream
|
|
yuuji@0
|
466 * message # to fetch
|
|
yuuji@0
|
467 * pointer to returned header text length
|
|
yuuji@0
|
468 * option flags
|
|
yuuji@0
|
469 * Returns: message header in RFC822 format
|
|
yuuji@0
|
470 */
|
|
yuuji@0
|
471
|
|
yuuji@0
|
472 char *mtx_header (MAILSTREAM *stream,unsigned long msgno,unsigned long *length,
|
|
yuuji@0
|
473 long flags)
|
|
yuuji@0
|
474 {
|
|
yuuji@0
|
475 *length = 0; /* default to empty */
|
|
yuuji@0
|
476 if (flags & FT_UID) return "";/* UID call "impossible" */
|
|
yuuji@0
|
477 /* get to header position */
|
|
yuuji@0
|
478 lseek (LOCAL->fd,mtx_hdrpos (stream,msgno,length),L_SET);
|
|
yuuji@0
|
479 /* is buffer big enough? */
|
|
yuuji@0
|
480 if (*length > LOCAL->buflen) {
|
|
yuuji@0
|
481 fs_give ((void **) &LOCAL->buf);
|
|
yuuji@0
|
482 LOCAL->buf = (char *) fs_get ((LOCAL->buflen = *length) + 1);
|
|
yuuji@0
|
483 }
|
|
yuuji@0
|
484 LOCAL->buf[*length] = '\0'; /* tie off string */
|
|
yuuji@0
|
485 /* slurp the data */
|
|
yuuji@0
|
486 read (LOCAL->fd,LOCAL->buf,*length);
|
|
yuuji@0
|
487 return LOCAL->buf;
|
|
yuuji@0
|
488 }
|
|
yuuji@0
|
489
|
|
yuuji@0
|
490 /* MTX mail fetch message text (body only)
|
|
yuuji@0
|
491 * Accepts: MAIL stream
|
|
yuuji@0
|
492 * message # to fetch
|
|
yuuji@0
|
493 * pointer to returned header text length
|
|
yuuji@0
|
494 * option flags
|
|
yuuji@0
|
495 * Returns: T, always
|
|
yuuji@0
|
496 */
|
|
yuuji@0
|
497
|
|
yuuji@0
|
498 long mtx_text (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags)
|
|
yuuji@0
|
499 {
|
|
yuuji@0
|
500 FDDATA d;
|
|
yuuji@0
|
501 unsigned long i,j;
|
|
yuuji@0
|
502 MESSAGECACHE *elt;
|
|
yuuji@0
|
503 /* UID call "impossible" */
|
|
yuuji@0
|
504 if (flags & FT_UID) return NIL;
|
|
yuuji@0
|
505 elt = mtx_elt (stream,msgno); /* get message status */
|
|
yuuji@0
|
506 /* if message not seen */
|
|
yuuji@0
|
507 if (!(flags & FT_PEEK) && !elt->seen) {
|
|
yuuji@0
|
508 elt->seen = T; /* mark message as seen */
|
|
yuuji@0
|
509 /* recalculate status */
|
|
yuuji@0
|
510 mtx_update_status (stream,msgno,NIL);
|
|
yuuji@0
|
511 mm_flags (stream,msgno);
|
|
yuuji@0
|
512 }
|
|
yuuji@0
|
513 /* find header position */
|
|
yuuji@0
|
514 i = mtx_hdrpos (stream,msgno,&j);
|
|
yuuji@0
|
515 d.fd = LOCAL->fd; /* set up file descriptor */
|
|
yuuji@0
|
516 d.pos = i + j;
|
|
yuuji@0
|
517 d.chunk = LOCAL->buf; /* initial buffer chunk */
|
|
yuuji@0
|
518 d.chunksize = CHUNKSIZE;
|
|
yuuji@0
|
519 INIT (bs,fd_string,&d,elt->rfc822_size - j);
|
|
yuuji@0
|
520 return T; /* success */
|
|
yuuji@0
|
521 }
|
|
yuuji@0
|
522
|
|
yuuji@0
|
523 /* MTX mail modify flags
|
|
yuuji@0
|
524 * Accepts: MAIL stream
|
|
yuuji@0
|
525 * sequence
|
|
yuuji@0
|
526 * flag(s)
|
|
yuuji@0
|
527 * option flags
|
|
yuuji@0
|
528 */
|
|
yuuji@0
|
529
|
|
yuuji@0
|
530 void mtx_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags)
|
|
yuuji@0
|
531 {
|
|
yuuji@0
|
532 struct utimbuf times;
|
|
yuuji@0
|
533 struct stat sbuf;
|
|
yuuji@0
|
534 if (!stream->rdonly) { /* make sure the update takes */
|
|
yuuji@0
|
535 fsync (LOCAL->fd);
|
|
yuuji@0
|
536 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
|
yuuji@0
|
537 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
538 times.actime = time (0); /* make sure read comes after all that */
|
|
yuuji@0
|
539 utime (stream->mailbox,×);
|
|
yuuji@0
|
540 }
|
|
yuuji@0
|
541 }
|
|
yuuji@0
|
542
|
|
yuuji@0
|
543
|
|
yuuji@0
|
544 /* MTX mail per-message modify flags
|
|
yuuji@0
|
545 * Accepts: MAIL stream
|
|
yuuji@0
|
546 * message cache element
|
|
yuuji@0
|
547 */
|
|
yuuji@0
|
548
|
|
yuuji@0
|
549 void mtx_flagmsg (MAILSTREAM *stream,MESSAGECACHE *elt)
|
|
yuuji@0
|
550 {
|
|
yuuji@0
|
551 struct stat sbuf;
|
|
yuuji@0
|
552 /* maybe need to do a checkpoint? */
|
|
yuuji@0
|
553 if (LOCAL->filetime && !LOCAL->shouldcheck) {
|
|
yuuji@0
|
554 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
|
yuuji@0
|
555 if (LOCAL->filetime < sbuf.st_mtime) LOCAL->shouldcheck = T;
|
|
yuuji@0
|
556 LOCAL->filetime = 0; /* don't do this test for any other messages */
|
|
yuuji@0
|
557 }
|
|
yuuji@0
|
558 /* recalculate status */
|
|
yuuji@0
|
559 mtx_update_status (stream,elt->msgno,NIL);
|
|
yuuji@0
|
560 }
|
|
yuuji@0
|
561
|
|
yuuji@0
|
562 /* MTX mail ping mailbox
|
|
yuuji@0
|
563 * Accepts: MAIL stream
|
|
yuuji@0
|
564 * Returns: T if stream still alive, NIL if not
|
|
yuuji@0
|
565 */
|
|
yuuji@0
|
566
|
|
yuuji@0
|
567 long mtx_ping (MAILSTREAM *stream)
|
|
yuuji@0
|
568 {
|
|
yuuji@0
|
569 unsigned long i = 1;
|
|
yuuji@0
|
570 long r = T;
|
|
yuuji@0
|
571 int ld;
|
|
yuuji@0
|
572 char lock[MAILTMPLEN];
|
|
yuuji@0
|
573 struct stat sbuf;
|
|
yuuji@0
|
574 if (stream && LOCAL) { /* only if stream already open */
|
|
yuuji@0
|
575 fstat (LOCAL->fd,&sbuf); /* get current file poop */
|
|
yuuji@0
|
576 if (LOCAL->filetime && !(LOCAL->mustcheck || LOCAL->shouldcheck) &&
|
|
yuuji@0
|
577 (LOCAL->filetime < sbuf.st_mtime)) LOCAL->shouldcheck = T;
|
|
yuuji@0
|
578 /* check for changed message status */
|
|
yuuji@0
|
579 if (LOCAL->mustcheck || LOCAL->shouldcheck) {
|
|
yuuji@0
|
580 LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
581 if (LOCAL->shouldcheck) /* babble when we do this unilaterally */
|
|
yuuji@0
|
582 mm_notify (stream,"[CHECK] Checking for flag updates",NIL);
|
|
yuuji@0
|
583 while (i <= stream->nmsgs) mtx_elt (stream,i++);
|
|
yuuji@0
|
584 LOCAL->mustcheck = LOCAL->shouldcheck = NIL;
|
|
yuuji@0
|
585 }
|
|
yuuji@0
|
586 /* get shared parse/append permission */
|
|
yuuji@0
|
587 if ((sbuf.st_size != LOCAL->filesize) &&
|
|
yuuji@0
|
588 ((ld = lockname (lock,stream->mailbox,LOCK_SH)) >= 0)) {
|
|
yuuji@0
|
589 /* parse resulting mailbox */
|
|
yuuji@0
|
590 r = (mtx_parse (stream)) ? T : NIL;
|
|
yuuji@0
|
591 unlockfd (ld,lock); /* release shared parse/append permission */
|
|
yuuji@0
|
592 }
|
|
yuuji@0
|
593 }
|
|
yuuji@0
|
594 return r; /* return result of the parse */
|
|
yuuji@0
|
595 }
|
|
yuuji@0
|
596
|
|
yuuji@0
|
597
|
|
yuuji@0
|
598 /* MTX mail check mailbox (reparses status too)
|
|
yuuji@0
|
599 * Accepts: MAIL stream
|
|
yuuji@0
|
600 */
|
|
yuuji@0
|
601
|
|
yuuji@0
|
602 void mtx_check (MAILSTREAM *stream)
|
|
yuuji@0
|
603 {
|
|
yuuji@0
|
604 /* mark that a check is desired */
|
|
yuuji@0
|
605 if (LOCAL) LOCAL->mustcheck = T;
|
|
yuuji@0
|
606 if (mtx_ping (stream)) mm_log ("Check completed",(long) NIL);
|
|
yuuji@0
|
607 }
|
|
yuuji@0
|
608
|
|
yuuji@0
|
609 /* MTX mail expunge mailbox
|
|
yuuji@0
|
610 * sequence to expunge if non-NIL
|
|
yuuji@0
|
611 * expunge options
|
|
yuuji@0
|
612 * Returns: T, always
|
|
yuuji@0
|
613 */
|
|
yuuji@0
|
614
|
|
yuuji@0
|
615 long mtx_expunge (MAILSTREAM *stream,char *sequence,long options)
|
|
yuuji@0
|
616 {
|
|
yuuji@0
|
617 long ret;
|
|
yuuji@0
|
618 struct utimbuf times;
|
|
yuuji@0
|
619 struct stat sbuf;
|
|
yuuji@0
|
620 off_t pos = 0;
|
|
yuuji@0
|
621 int ld;
|
|
yuuji@0
|
622 unsigned long i = 1;
|
|
yuuji@0
|
623 unsigned long j,k,m,recent;
|
|
yuuji@0
|
624 unsigned long n = 0;
|
|
yuuji@0
|
625 unsigned long delta = 0;
|
|
yuuji@0
|
626 char lock[MAILTMPLEN];
|
|
yuuji@0
|
627 MESSAGECACHE *elt;
|
|
yuuji@0
|
628 if (!(ret = (sequence ? ((options & EX_UID) ?
|
|
yuuji@0
|
629 mail_uid_sequence (stream,sequence) :
|
|
yuuji@0
|
630 mail_sequence (stream,sequence)) : LONGT) &&
|
|
yuuji@0
|
631 mtx_ping (stream))); /* parse sequence if given, ping stream */
|
|
yuuji@0
|
632 else if (stream->rdonly) mm_log ("Expunge ignored on readonly mailbox",WARN);
|
|
yuuji@0
|
633 else {
|
|
yuuji@0
|
634 if (LOCAL->filetime && !LOCAL->shouldcheck) {
|
|
yuuji@0
|
635 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
|
yuuji@0
|
636 if (LOCAL->filetime < sbuf.st_mtime) LOCAL->shouldcheck = T;
|
|
yuuji@0
|
637 }
|
|
yuuji@0
|
638 /* get exclusive parse/append permission */
|
|
yuuji@0
|
639 if ((ld = lockname (lock,stream->mailbox,LOCK_EX)) < 0)
|
|
yuuji@0
|
640 mm_log ("Unable to lock expunge mailbox",ERROR);
|
|
yuuji@0
|
641 /* make sure see any newly-arrived messages */
|
|
yuuji@0
|
642 else if (!mtx_parse (stream));
|
|
yuuji@0
|
643 /* get exclusive access */
|
|
yuuji@0
|
644 else if (flock (LOCAL->fd,LOCK_EX|LOCK_NB)) {
|
|
yuuji@0
|
645 flock (LOCAL->fd,LOCK_SH);/* recover previous lock */
|
|
yuuji@0
|
646 mm_log ("Can't expunge because mailbox is in use by another process",
|
|
yuuji@0
|
647 ERROR);
|
|
yuuji@0
|
648 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
649 }
|
|
yuuji@0
|
650
|
|
yuuji@0
|
651 else {
|
|
yuuji@0
|
652 mm_critical (stream); /* go critical */
|
|
yuuji@0
|
653 recent = stream->recent; /* get recent now that pinged and locked */
|
|
yuuji@0
|
654 /* for each message */
|
|
yuuji@0
|
655 while (i <= stream->nmsgs) {
|
|
yuuji@0
|
656 /* get cache element */
|
|
yuuji@0
|
657 elt = mtx_elt (stream,i);
|
|
yuuji@0
|
658 /* number of bytes to smash or preserve */
|
|
yuuji@0
|
659 k = elt->private.special.text.size + elt->rfc822_size;
|
|
yuuji@0
|
660 /* if need to expunge this message */
|
|
yuuji@0
|
661 if (elt->deleted && (sequence ? elt->sequence : T)) {
|
|
yuuji@0
|
662 /* if recent, note one less recent message */
|
|
yuuji@0
|
663 if (elt->recent) --recent;
|
|
yuuji@0
|
664 delta += k; /* number of bytes to delete */
|
|
yuuji@0
|
665 /* notify upper levels */
|
|
yuuji@0
|
666 mail_expunged (stream,i);
|
|
yuuji@0
|
667 n++; /* count up one more expunged message */
|
|
yuuji@0
|
668 }
|
|
yuuji@0
|
669 else if (i++ && delta) {/* preserved message */
|
|
yuuji@0
|
670 /* first byte to preserve */
|
|
yuuji@0
|
671 j = elt->private.special.offset;
|
|
yuuji@0
|
672 do { /* read from source position */
|
|
yuuji@0
|
673 m = min (k,LOCAL->buflen);
|
|
yuuji@0
|
674 lseek (LOCAL->fd,j,L_SET);
|
|
yuuji@0
|
675 read (LOCAL->fd,LOCAL->buf,m);
|
|
yuuji@0
|
676 pos = j - delta; /* write to destination position */
|
|
yuuji@0
|
677 while (T) {
|
|
yuuji@0
|
678 lseek (LOCAL->fd,pos,L_SET);
|
|
yuuji@0
|
679 if (write (LOCAL->fd,LOCAL->buf,m) > 0) break;
|
|
yuuji@0
|
680 mm_notify (stream,strerror (errno),WARN);
|
|
yuuji@0
|
681 mm_diskerror (stream,errno,T);
|
|
yuuji@0
|
682 }
|
|
yuuji@0
|
683 pos += m; /* new position */
|
|
yuuji@0
|
684 j += m; /* next chunk, perhaps */
|
|
yuuji@0
|
685 } while (k -= m); /* until done */
|
|
yuuji@0
|
686 /* note the new address of this text */
|
|
yuuji@0
|
687 elt->private.special.offset -= delta;
|
|
yuuji@0
|
688 }
|
|
yuuji@0
|
689 /* preserved but no deleted messages */
|
|
yuuji@0
|
690 else pos = elt->private.special.offset + k;
|
|
yuuji@0
|
691 }
|
|
yuuji@0
|
692 if (n) { /* truncate file after last message */
|
|
yuuji@0
|
693 if (pos != (LOCAL->filesize -= delta)) {
|
|
yuuji@0
|
694 sprintf (LOCAL->buf,
|
|
yuuji@0
|
695 "Calculated size mismatch %lu != %lu, delta = %lu",
|
|
yuuji@0
|
696 (unsigned long) pos,(unsigned long) LOCAL->filesize,delta);
|
|
yuuji@0
|
697 mm_log (LOCAL->buf,WARN);
|
|
yuuji@0
|
698 LOCAL->filesize = pos;/* fix it then */
|
|
yuuji@0
|
699 }
|
|
yuuji@0
|
700 ftruncate (LOCAL->fd,LOCAL->filesize);
|
|
yuuji@0
|
701 sprintf (LOCAL->buf,"Expunged %lu messages",n);
|
|
yuuji@0
|
702 /* output the news */
|
|
yuuji@0
|
703 mm_log (LOCAL->buf,(long) NIL);
|
|
yuuji@0
|
704 }
|
|
yuuji@0
|
705 else mm_log ("No messages deleted, so no update needed",(long) NIL);
|
|
yuuji@0
|
706 fsync (LOCAL->fd); /* force disk update */
|
|
yuuji@0
|
707 fstat (LOCAL->fd,&sbuf); /* get new write time */
|
|
yuuji@0
|
708 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
709 times.actime = time (0); /* reset atime to now */
|
|
yuuji@0
|
710 utime (stream->mailbox,×);
|
|
yuuji@0
|
711 mm_nocritical (stream); /* release critical */
|
|
yuuji@0
|
712 /* notify upper level of new mailbox size */
|
|
yuuji@0
|
713 mail_exists (stream,stream->nmsgs);
|
|
yuuji@0
|
714 mail_recent (stream,recent);
|
|
yuuji@0
|
715 flock (LOCAL->fd,LOCK_SH);/* allow sharers again */
|
|
yuuji@0
|
716 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
717 }
|
|
yuuji@0
|
718 }
|
|
yuuji@0
|
719 return ret;
|
|
yuuji@0
|
720 }
|
|
yuuji@0
|
721
|
|
yuuji@0
|
722 /* MTX mail copy message(s)
|
|
yuuji@0
|
723 * Accepts: MAIL stream
|
|
yuuji@0
|
724 * sequence
|
|
yuuji@0
|
725 * destination mailbox
|
|
yuuji@0
|
726 * copy options
|
|
yuuji@0
|
727 * Returns: T if success, NIL if failed
|
|
yuuji@0
|
728 */
|
|
yuuji@0
|
729
|
|
yuuji@0
|
730 long mtx_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
|
|
yuuji@0
|
731 {
|
|
yuuji@0
|
732 struct stat sbuf;
|
|
yuuji@0
|
733 struct utimbuf times;
|
|
yuuji@0
|
734 MESSAGECACHE *elt;
|
|
yuuji@0
|
735 unsigned long i,j,k;
|
|
yuuji@0
|
736 long ret = LONGT;
|
|
yuuji@0
|
737 int fd,ld;
|
|
yuuji@0
|
738 char file[MAILTMPLEN],lock[MAILTMPLEN];
|
|
yuuji@0
|
739 mailproxycopy_t pc =
|
|
yuuji@0
|
740 (mailproxycopy_t) mail_parameters (stream,GET_MAILPROXYCOPY,NIL);
|
|
yuuji@0
|
741 /* make sure valid mailbox */
|
|
yuuji@0
|
742 if (!mtx_isvalid (mailbox,file)) switch (errno) {
|
|
yuuji@0
|
743 case ENOENT: /* no such file? */
|
|
yuuji@0
|
744 mm_notify (stream,"[TRYCREATE] Must create mailbox before copy",NIL);
|
|
yuuji@0
|
745 return NIL;
|
|
yuuji@0
|
746 case 0: /* merely empty file? */
|
|
yuuji@0
|
747 break;
|
|
yuuji@0
|
748 case EACCES: /* file protected */
|
|
yuuji@0
|
749 sprintf (LOCAL->buf,"Can't access destination: %.80s",mailbox);
|
|
yuuji@0
|
750 MM_LOG (LOCAL->buf,ERROR);
|
|
yuuji@0
|
751 return NIL;
|
|
yuuji@0
|
752 case EINVAL:
|
|
yuuji@0
|
753 if (pc) return (*pc) (stream,sequence,mailbox,options);
|
|
yuuji@0
|
754 sprintf (LOCAL->buf,"Invalid MTX-format mailbox name: %.80s",mailbox);
|
|
yuuji@0
|
755 mm_log (LOCAL->buf,ERROR);
|
|
yuuji@0
|
756 return NIL;
|
|
yuuji@0
|
757 default:
|
|
yuuji@0
|
758 if (pc) return (*pc) (stream,sequence,mailbox,options);
|
|
yuuji@0
|
759 sprintf (LOCAL->buf,"Not a MTX-format mailbox: %.80s",mailbox);
|
|
yuuji@0
|
760 mm_log (LOCAL->buf,ERROR);
|
|
yuuji@0
|
761 return NIL;
|
|
yuuji@0
|
762 }
|
|
yuuji@0
|
763 if (!((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
|
|
yuuji@0
|
764 mail_sequence (stream,sequence))) return NIL;
|
|
yuuji@0
|
765 /* got file? */
|
|
yuuji@0
|
766 if ((fd = open (file,O_BINARY|O_RDWR|O_CREAT,S_IREAD|S_IWRITE)) < 0) {
|
|
yuuji@0
|
767 sprintf (LOCAL->buf,"Unable to open copy mailbox: %.80s",strerror (errno));
|
|
yuuji@0
|
768 mm_log (LOCAL->buf,ERROR);
|
|
yuuji@0
|
769 return NIL;
|
|
yuuji@0
|
770 }
|
|
yuuji@0
|
771 mm_critical (stream); /* go critical */
|
|
yuuji@0
|
772 /* get exclusive parse/append permission */
|
|
yuuji@0
|
773 if (flock (fd,LOCK_SH) || ((ld = lockname (lock,file,LOCK_EX)) < 0)) {
|
|
yuuji@0
|
774 mm_log ("Unable to lock copy mailbox",ERROR);
|
|
yuuji@0
|
775 mm_nocritical (stream);
|
|
yuuji@0
|
776 return NIL;
|
|
yuuji@0
|
777 }
|
|
yuuji@0
|
778 fstat (fd,&sbuf); /* get current file size */
|
|
yuuji@0
|
779 lseek (fd,sbuf.st_size,L_SET);/* move to end of file */
|
|
yuuji@0
|
780
|
|
yuuji@0
|
781 /* for each requested message */
|
|
yuuji@0
|
782 for (i = 1; ret && (i <= stream->nmsgs); i++)
|
|
yuuji@0
|
783 if ((elt = mail_elt (stream,i))->sequence) {
|
|
yuuji@0
|
784 lseek (LOCAL->fd,elt->private.special.offset,L_SET);
|
|
yuuji@0
|
785 /* number of bytes to copy */
|
|
yuuji@0
|
786 k = elt->private.special.text.size + elt->rfc822_size;
|
|
yuuji@0
|
787 do { /* read from source position */
|
|
yuuji@0
|
788 j = min (k,LOCAL->buflen);
|
|
yuuji@0
|
789 read (LOCAL->fd,LOCAL->buf,j);
|
|
yuuji@0
|
790 if (write (fd,LOCAL->buf,j) < 0) ret = NIL;
|
|
yuuji@0
|
791 } while (ret && (k -= j));/* until done */
|
|
yuuji@0
|
792 }
|
|
yuuji@0
|
793 /* make sure all the updates take */
|
|
yuuji@0
|
794 if (!(ret && (ret = !fsync (fd)))) {
|
|
yuuji@0
|
795 sprintf (LOCAL->buf,"Unable to write message: %s",strerror (errno));
|
|
yuuji@0
|
796 mm_log (LOCAL->buf,ERROR);
|
|
yuuji@0
|
797 ftruncate (fd,sbuf.st_size);
|
|
yuuji@0
|
798 }
|
|
yuuji@0
|
799 /* set atime to now-1 if successful copy */
|
|
yuuji@0
|
800 if (ret) times.actime = time (0) - 1;
|
|
yuuji@0
|
801 /* else preserved \Marked status */
|
|
yuuji@0
|
802 else times.actime = (sbuf.st_ctime > sbuf.st_atime) ?
|
|
yuuji@0
|
803 sbuf.st_atime : time (0);
|
|
yuuji@0
|
804 times.modtime = sbuf.st_mtime;/* preserve mtime */
|
|
yuuji@0
|
805 utime (file,×); /* set the times */
|
|
yuuji@0
|
806 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
807 close (fd); /* close the file */
|
|
yuuji@0
|
808 mm_nocritical (stream); /* release critical */
|
|
yuuji@0
|
809 /* delete all requested messages */
|
|
yuuji@0
|
810 if (ret && (options & CP_MOVE)) {
|
|
yuuji@0
|
811 for (i = 1; i <= stream->nmsgs; i++)
|
|
yuuji@0
|
812 if ((elt = mtx_elt (stream,i))->sequence) {
|
|
yuuji@0
|
813 elt->deleted = T; /* mark message deleted */
|
|
yuuji@0
|
814 /* recalculate status */
|
|
yuuji@0
|
815 mtx_update_status (stream,i,NIL);
|
|
yuuji@0
|
816 }
|
|
yuuji@0
|
817 if (!stream->rdonly) { /* make sure the update takes */
|
|
yuuji@0
|
818 fsync (LOCAL->fd);
|
|
yuuji@0
|
819 fstat (LOCAL->fd,&sbuf); /* get current write time */
|
|
yuuji@0
|
820 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
821 times.actime = time (0); /* make sure atime remains greater */
|
|
yuuji@0
|
822 utime (stream->mailbox,×);
|
|
yuuji@0
|
823 }
|
|
yuuji@0
|
824 }
|
|
yuuji@0
|
825 if (ret && mail_parameters (NIL,GET_COPYUID,NIL))
|
|
yuuji@0
|
826 mm_log ("Can not return meaningful COPYUID with this mailbox format",WARN);
|
|
yuuji@0
|
827 return ret;
|
|
yuuji@0
|
828 }
|
|
yuuji@0
|
829
|
|
yuuji@0
|
830 /* MTX mail append message from stringstruct
|
|
yuuji@0
|
831 * Accepts: MAIL stream
|
|
yuuji@0
|
832 * destination mailbox
|
|
yuuji@0
|
833 * append callback
|
|
yuuji@0
|
834 * data for callback
|
|
yuuji@0
|
835 * Returns: T if append successful, else NIL
|
|
yuuji@0
|
836 */
|
|
yuuji@0
|
837
|
|
yuuji@0
|
838 long mtx_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
|
|
yuuji@0
|
839 {
|
|
yuuji@0
|
840 struct stat sbuf;
|
|
yuuji@0
|
841 int fd,ld,c;
|
|
yuuji@0
|
842 char *flags,*date,tmp[MAILTMPLEN],file[MAILTMPLEN],lock[MAILTMPLEN];
|
|
yuuji@0
|
843 struct utimbuf times;
|
|
yuuji@0
|
844 FILE *df;
|
|
yuuji@0
|
845 MESSAGECACHE elt;
|
|
yuuji@0
|
846 long f;
|
|
yuuji@0
|
847 unsigned long i,uf;
|
|
yuuji@0
|
848 STRING *message;
|
|
yuuji@0
|
849 long ret = LONGT;
|
|
yuuji@0
|
850 /* default stream to prototype */
|
|
yuuji@0
|
851 if (!stream) stream = &mtxproto;
|
|
yuuji@0
|
852 /* make sure valid mailbox */
|
|
yuuji@0
|
853 if (!mtx_isvalid (mailbox,file)) switch (errno) {
|
|
yuuji@0
|
854 case ENOENT: /* no such file? */
|
|
yuuji@0
|
855 if (!compare_cstring (mailbox,"INBOX")) mtx_create (NIL,"INBOX");
|
|
yuuji@0
|
856 else {
|
|
yuuji@0
|
857 mm_notify (stream,"[TRYCREATE] Must create mailbox before append",NIL);
|
|
yuuji@0
|
858 return NIL;
|
|
yuuji@0
|
859 }
|
|
yuuji@0
|
860 /* falls through */
|
|
yuuji@0
|
861 case 0: /* merely empty file? */
|
|
yuuji@0
|
862 break;
|
|
yuuji@0
|
863 case EACCES: /* file protected */
|
|
yuuji@0
|
864 sprintf (tmp,"Can't access destination: %.80s",mailbox);
|
|
yuuji@0
|
865 MM_LOG (tmp,ERROR);
|
|
yuuji@0
|
866 return NIL;
|
|
yuuji@0
|
867 case EINVAL:
|
|
yuuji@0
|
868 sprintf (tmp,"Invalid MTX-format mailbox name: %.80s",mailbox);
|
|
yuuji@0
|
869 mm_log (tmp,ERROR);
|
|
yuuji@0
|
870 return NIL;
|
|
yuuji@0
|
871 default:
|
|
yuuji@0
|
872 sprintf (tmp,"Not a MTX-format mailbox: %.80s",mailbox);
|
|
yuuji@0
|
873 mm_log (tmp,ERROR);
|
|
yuuji@0
|
874 return NIL;
|
|
yuuji@0
|
875 }
|
|
yuuji@0
|
876 /* get first message */
|
|
yuuji@0
|
877 if (!(*af) (stream,data,&flags,&date,&message)) return NIL;
|
|
yuuji@0
|
878
|
|
yuuji@0
|
879 /* open destination mailbox */
|
|
yuuji@0
|
880 if (((fd = open (file,O_BINARY|O_WRONLY|O_APPEND|O_CREAT,S_IREAD|S_IWRITE))
|
|
yuuji@0
|
881 < 0) || !(df = fdopen (fd,"ab"))) {
|
|
yuuji@0
|
882 sprintf (tmp,"Can't open append mailbox: %s",strerror (errno));
|
|
yuuji@0
|
883 mm_log (tmp,ERROR);
|
|
yuuji@0
|
884 return NIL;
|
|
yuuji@0
|
885 }
|
|
yuuji@0
|
886 /* get parse/append permission */
|
|
yuuji@0
|
887 if (flock (fd,LOCK_SH) || ((ld = lockname (lock,file,LOCK_EX)) < 0)) {
|
|
yuuji@0
|
888 mm_log ("Unable to lock append mailbox",ERROR);
|
|
yuuji@0
|
889 close (fd);
|
|
yuuji@0
|
890 return NIL;
|
|
yuuji@0
|
891 }
|
|
yuuji@0
|
892 mm_critical (stream); /* go critical */
|
|
yuuji@0
|
893 fstat (fd,&sbuf); /* get current file size */
|
|
yuuji@0
|
894 errno = 0;
|
|
yuuji@0
|
895 do { /* parse flags */
|
|
yuuji@0
|
896 if (!SIZE (message)) { /* guard against zero-length */
|
|
yuuji@0
|
897 mm_log ("Append of zero-length message",ERROR);
|
|
yuuji@0
|
898 ret = NIL;
|
|
yuuji@0
|
899 break;
|
|
yuuji@0
|
900 }
|
|
yuuji@0
|
901 f = mail_parse_flags (stream,flags,&i);
|
|
yuuji@0
|
902 /* reverse bits (dontcha wish we had CIRC?) */
|
|
yuuji@0
|
903 for (uf = 0; i; uf |= 1 << (29 - find_rightmost_bit (&i)));
|
|
yuuji@0
|
904 if (date) { /* parse date if given */
|
|
yuuji@0
|
905 if (!mail_parse_date (&elt,date)) {
|
|
yuuji@0
|
906 sprintf (tmp,"Bad date in append: %.80s",date);
|
|
yuuji@0
|
907 mm_log (tmp,ERROR);
|
|
yuuji@0
|
908 ret = NIL; /* mark failure */
|
|
yuuji@0
|
909 break;
|
|
yuuji@0
|
910 }
|
|
yuuji@0
|
911 mail_date (tmp,&elt); /* write preseved date */
|
|
yuuji@0
|
912 }
|
|
yuuji@0
|
913 else internal_date (tmp); /* get current date in IMAP format */
|
|
yuuji@0
|
914 /* write header */
|
|
yuuji@0
|
915 if (fprintf (df,"%s,%lu;%010lo%02lo\015\012",tmp,i = SIZE (message),uf,
|
|
yuuji@0
|
916 (unsigned long) f) < 0) ret = NIL;
|
|
yuuji@0
|
917 else { /* write message */
|
|
yuuji@0
|
918 if (i) do c = 0xff & SNX (message);
|
|
yuuji@0
|
919 while ((putc (c,df) != EOF) && --i);
|
|
yuuji@0
|
920 /* get next message */
|
|
yuuji@0
|
921 if (i || !(*af) (stream,data,&flags,&date,&message)) ret = NIL;
|
|
yuuji@0
|
922 }
|
|
yuuji@0
|
923 } while (ret && message);
|
|
yuuji@0
|
924 /* if error... */
|
|
yuuji@0
|
925 if (!ret || (fflush (df) == EOF)) {
|
|
yuuji@0
|
926 ftruncate (fd,sbuf.st_size);/* revert file */
|
|
yuuji@0
|
927 close (fd); /* make sure fclose() doesn't corrupt us */
|
|
yuuji@0
|
928 if (errno) {
|
|
yuuji@0
|
929 sprintf (tmp,"Message append failed: %s",strerror (errno));
|
|
yuuji@0
|
930 mm_log (tmp,ERROR);
|
|
yuuji@0
|
931 }
|
|
yuuji@0
|
932 ret = NIL;
|
|
yuuji@0
|
933 }
|
|
yuuji@0
|
934 if (ret) times.actime = time (0) - 1;
|
|
yuuji@0
|
935 /* else preserved \Marked status */
|
|
yuuji@0
|
936 else times.actime = (sbuf.st_ctime > sbuf.st_atime) ?
|
|
yuuji@0
|
937 sbuf.st_atime : time (0);
|
|
yuuji@0
|
938 times.modtime = sbuf.st_mtime;/* preserve mtime */
|
|
yuuji@0
|
939 utime (file,×); /* set the times */
|
|
yuuji@0
|
940 fclose (df); /* close the file */
|
|
yuuji@0
|
941 unlockfd (ld,lock); /* release exclusive parse/append permission */
|
|
yuuji@0
|
942 mm_nocritical (stream); /* release critical */
|
|
yuuji@0
|
943 if (ret && mail_parameters (NIL,GET_APPENDUID,NIL))
|
|
yuuji@0
|
944 mm_log ("Can not return meaningful APPENDUID with this mailbox format",
|
|
yuuji@0
|
945 WARN);
|
|
yuuji@0
|
946 return ret;
|
|
yuuji@0
|
947 }
|
|
yuuji@0
|
948
|
|
yuuji@0
|
949 /* Internal routines */
|
|
yuuji@0
|
950
|
|
yuuji@0
|
951
|
|
yuuji@0
|
952 /* MTX mail parse mailbox
|
|
yuuji@0
|
953 * Accepts: MAIL stream
|
|
yuuji@0
|
954 * Returns: T if parse OK
|
|
yuuji@0
|
955 * NIL if failure, stream aborted
|
|
yuuji@0
|
956 */
|
|
yuuji@0
|
957
|
|
yuuji@0
|
958 long mtx_parse (MAILSTREAM *stream)
|
|
yuuji@0
|
959 {
|
|
yuuji@0
|
960 struct stat sbuf;
|
|
yuuji@0
|
961 MESSAGECACHE *elt = NIL;
|
|
yuuji@0
|
962 unsigned char c,*s,*t,*x;
|
|
yuuji@0
|
963 char tmp[MAILTMPLEN];
|
|
yuuji@0
|
964 unsigned long i,j;
|
|
yuuji@0
|
965 long curpos = LOCAL->filesize;
|
|
yuuji@0
|
966 long nmsgs = stream->nmsgs;
|
|
yuuji@0
|
967 long recent = stream->recent;
|
|
yuuji@0
|
968 short added = NIL;
|
|
yuuji@0
|
969 short silent = stream->silent;
|
|
yuuji@0
|
970 fstat (LOCAL->fd,&sbuf); /* get status */
|
|
yuuji@0
|
971 if (sbuf.st_size < curpos) { /* sanity check */
|
|
yuuji@0
|
972 sprintf (tmp,"Mailbox shrank from %ld to %ld!",curpos,sbuf.st_size);
|
|
yuuji@0
|
973 mm_log (tmp,ERROR);
|
|
yuuji@0
|
974 mtx_close (stream,NIL);
|
|
yuuji@0
|
975 return NIL;
|
|
yuuji@0
|
976 }
|
|
yuuji@0
|
977 stream->silent = T; /* don't pass up mm_exists() events yet */
|
|
yuuji@0
|
978 while (sbuf.st_size - curpos){/* while there is stuff to parse */
|
|
yuuji@0
|
979 /* get to that position in the file */
|
|
yuuji@0
|
980 lseek (LOCAL->fd,curpos,L_SET);
|
|
yuuji@0
|
981 if ((i = read (LOCAL->fd,LOCAL->buf,64)) <= 0) {
|
|
yuuji@0
|
982 sprintf (tmp,"Unable to read internal header at %lu, size = %lu: %s",
|
|
yuuji@0
|
983 (unsigned long) curpos,(unsigned long) sbuf.st_size,
|
|
yuuji@0
|
984 i ? strerror (errno) : "no data read");
|
|
yuuji@0
|
985 mm_log (tmp,ERROR);
|
|
yuuji@0
|
986 mtx_close (stream,NIL);
|
|
yuuji@0
|
987 return NIL;
|
|
yuuji@0
|
988 }
|
|
yuuji@0
|
989 LOCAL->buf[i] = '\0'; /* tie off buffer just in case */
|
|
yuuji@0
|
990 if (!((s = strchr (LOCAL->buf,'\015')) && (s[1] == '\012'))) {
|
|
yuuji@0
|
991 sprintf (tmp,"Unable to find CRLF at %lu in %lu bytes, text: %s",
|
|
yuuji@0
|
992 (unsigned long) curpos,i,(char *) LOCAL->buf);
|
|
yuuji@0
|
993 mm_log (tmp,ERROR);
|
|
yuuji@0
|
994 mtx_close (stream,NIL);
|
|
yuuji@0
|
995 return NIL;
|
|
yuuji@0
|
996 }
|
|
yuuji@0
|
997 *s = '\0'; /* tie off header line */
|
|
yuuji@0
|
998 i = (s + 2) - LOCAL->buf; /* note start of text offset */
|
|
yuuji@0
|
999 if (!((s = strchr (LOCAL->buf,',')) && (t = strchr (s+1,';')))) {
|
|
yuuji@0
|
1000 sprintf (tmp,"Unable to parse internal header at %lu: %s",
|
|
yuuji@0
|
1001 (unsigned long) curpos,(char *) LOCAL->buf);
|
|
yuuji@0
|
1002 mm_log (tmp,ERROR);
|
|
yuuji@0
|
1003 mtx_close (stream,NIL);
|
|
yuuji@0
|
1004 return NIL;
|
|
yuuji@0
|
1005 }
|
|
yuuji@0
|
1006 *s++ = '\0'; *t++ = '\0'; /* tie off fields */
|
|
yuuji@0
|
1007
|
|
yuuji@0
|
1008 added = T; /* note that a new message was added */
|
|
yuuji@0
|
1009 /* swell the cache */
|
|
yuuji@0
|
1010 mail_exists (stream,++nmsgs);
|
|
yuuji@0
|
1011 /* instantiate an elt for this message */
|
|
yuuji@0
|
1012 (elt = mail_elt (stream,nmsgs))->valid = T;
|
|
yuuji@0
|
1013 elt->private.uid = ++stream->uid_last;
|
|
yuuji@0
|
1014 /* note file offset of header */
|
|
yuuji@0
|
1015 elt->private.special.offset = curpos;
|
|
yuuji@0
|
1016 /* in case error */
|
|
yuuji@0
|
1017 elt->private.special.text.size = 0;
|
|
yuuji@0
|
1018 /* header size not known yet */
|
|
yuuji@0
|
1019 elt->private.msg.header.text.size = 0;
|
|
yuuji@0
|
1020 x = s; /* parse the header components */
|
|
yuuji@0
|
1021 if (mail_parse_date (elt,LOCAL->buf) &&
|
|
yuuji@0
|
1022 (elt->rfc822_size = strtoul (s,(char **) &s,10)) && (!(s && *s)) &&
|
|
yuuji@0
|
1023 isdigit (t[0]) && isdigit (t[1]) && isdigit (t[2]) &&
|
|
yuuji@0
|
1024 isdigit (t[3]) && isdigit (t[4]) && isdigit (t[5]) &&
|
|
yuuji@0
|
1025 isdigit (t[6]) && isdigit (t[7]) && isdigit (t[8]) &&
|
|
yuuji@0
|
1026 isdigit (t[9]) && isdigit (t[10]) && isdigit (t[11]) && !t[12])
|
|
yuuji@0
|
1027 elt->private.special.text.size = i;
|
|
yuuji@0
|
1028 else { /* oops */
|
|
yuuji@0
|
1029 sprintf (tmp,"Unable to parse internal header elements at %ld: %s,%s;%s",
|
|
yuuji@0
|
1030 curpos,(char *) LOCAL->buf,(char *) x,(char *) t);
|
|
yuuji@0
|
1031 mm_log (tmp,ERROR);
|
|
yuuji@0
|
1032 mtx_close (stream,NIL);
|
|
yuuji@0
|
1033 return NIL;
|
|
yuuji@0
|
1034 }
|
|
yuuji@0
|
1035 /* make sure didn't run off end of file */
|
|
yuuji@0
|
1036 if ((curpos += (elt->rfc822_size + i)) > sbuf.st_size) {
|
|
yuuji@0
|
1037 sprintf (tmp,"Last message (at %lu) runs past end of file (%lu > %lu)",
|
|
yuuji@0
|
1038 elt->private.special.offset,(unsigned long) curpos,
|
|
yuuji@0
|
1039 (unsigned long) sbuf.st_size);
|
|
yuuji@0
|
1040 mm_log (tmp,ERROR);
|
|
yuuji@0
|
1041 mtx_close (stream,NIL);
|
|
yuuji@0
|
1042 return NIL;
|
|
yuuji@0
|
1043 }
|
|
yuuji@0
|
1044 c = t[10]; /* remember first system flags byte */
|
|
yuuji@0
|
1045 t[10] = '\0'; /* tie off flags */
|
|
yuuji@0
|
1046 j = strtoul (t,NIL,8); /* get user flags value */
|
|
yuuji@0
|
1047 t[10] = c; /* restore first system flags byte */
|
|
yuuji@0
|
1048 /* set up all valid user flags (reversed!) */
|
|
yuuji@0
|
1049 while (j) if (((i = 29 - find_rightmost_bit (&j)) < NUSERFLAGS) &&
|
|
yuuji@0
|
1050 stream->user_flags[i]) elt->user_flags |= 1 << i;
|
|
yuuji@0
|
1051 /* calculate system flags */
|
|
yuuji@0
|
1052 if ((j = ((t[10]-'0') * 8) + t[11]-'0') & fSEEN) elt->seen = T;
|
|
yuuji@0
|
1053 if (j & fDELETED) elt->deleted = T;
|
|
yuuji@0
|
1054 if (j & fFLAGGED) elt->flagged = T;
|
|
yuuji@0
|
1055 if (j & fANSWERED) elt->answered = T;
|
|
yuuji@0
|
1056 if (j & fDRAFT) elt->draft = T;
|
|
yuuji@0
|
1057 if (!(j & fOLD)) { /* newly arrived message? */
|
|
yuuji@0
|
1058 elt->recent = T;
|
|
yuuji@0
|
1059 recent++; /* count up a new recent message */
|
|
yuuji@0
|
1060 /* mark it as old */
|
|
yuuji@0
|
1061 mtx_update_status (stream,nmsgs,NIL);
|
|
yuuji@0
|
1062 }
|
|
yuuji@0
|
1063 }
|
|
yuuji@0
|
1064 fsync (LOCAL->fd); /* make sure all the fOLD flags take */
|
|
yuuji@0
|
1065 /* update parsed file size and time */
|
|
yuuji@0
|
1066 LOCAL->filesize = sbuf.st_size;
|
|
yuuji@0
|
1067 fstat (LOCAL->fd,&sbuf); /* get status again to ensure time is right */
|
|
yuuji@0
|
1068 LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
1069 if (added && !stream->rdonly){/* make sure atime updated */
|
|
yuuji@0
|
1070 struct utimbuf times;
|
|
yuuji@0
|
1071 times.actime = time (0);
|
|
yuuji@0
|
1072 times.modtime = LOCAL->filetime;
|
|
yuuji@0
|
1073 utime (stream->mailbox,×);
|
|
yuuji@0
|
1074 }
|
|
yuuji@0
|
1075 stream->silent = silent; /* can pass up events now */
|
|
yuuji@0
|
1076 mail_exists (stream,nmsgs); /* notify upper level of new mailbox size */
|
|
yuuji@0
|
1077 mail_recent (stream,recent); /* and of change in recent messages */
|
|
yuuji@0
|
1078 return LONGT; /* return the winnage */
|
|
yuuji@0
|
1079 }
|
|
yuuji@0
|
1080
|
|
yuuji@0
|
1081 /* MTX get cache element with status updating from file
|
|
yuuji@0
|
1082 * Accepts: MAIL stream
|
|
yuuji@0
|
1083 * message number
|
|
yuuji@0
|
1084 * Returns: cache element
|
|
yuuji@0
|
1085 */
|
|
yuuji@0
|
1086
|
|
yuuji@0
|
1087 MESSAGECACHE *mtx_elt (MAILSTREAM *stream,unsigned long msgno)
|
|
yuuji@0
|
1088 {
|
|
yuuji@0
|
1089 MESSAGECACHE *elt = mail_elt (stream,msgno);
|
|
yuuji@0
|
1090 struct { /* old flags */
|
|
yuuji@0
|
1091 unsigned int seen : 1;
|
|
yuuji@0
|
1092 unsigned int deleted : 1;
|
|
yuuji@0
|
1093 unsigned int flagged : 1;
|
|
yuuji@0
|
1094 unsigned int answered : 1;
|
|
yuuji@0
|
1095 unsigned int draft : 1;
|
|
yuuji@0
|
1096 unsigned long user_flags;
|
|
yuuji@0
|
1097 } old;
|
|
yuuji@0
|
1098 old.seen = elt->seen; old.deleted = elt->deleted; old.flagged = elt->flagged;
|
|
yuuji@0
|
1099 old.answered = elt->answered; old.draft = elt->draft;
|
|
yuuji@0
|
1100 old.user_flags = elt->user_flags;
|
|
yuuji@0
|
1101 mtx_read_flags (stream,elt);
|
|
yuuji@0
|
1102 if ((old.seen != elt->seen) || (old.deleted != elt->deleted) ||
|
|
yuuji@0
|
1103 (old.flagged != elt->flagged) || (old.answered != elt->answered) ||
|
|
yuuji@0
|
1104 (old.draft != elt->draft) || (old.user_flags != elt->user_flags))
|
|
yuuji@0
|
1105 mm_flags (stream,msgno); /* let top level know */
|
|
yuuji@0
|
1106 return elt;
|
|
yuuji@0
|
1107 }
|
|
yuuji@0
|
1108
|
|
yuuji@0
|
1109 /* MTX read flags from file
|
|
yuuji@0
|
1110 * Accepts: MAIL stream
|
|
yuuji@0
|
1111 * Returns: cache element
|
|
yuuji@0
|
1112 */
|
|
yuuji@0
|
1113
|
|
yuuji@0
|
1114 void mtx_read_flags (MAILSTREAM *stream,MESSAGECACHE *elt)
|
|
yuuji@0
|
1115 {
|
|
yuuji@0
|
1116 unsigned long i,j;
|
|
yuuji@0
|
1117 /* noop if readonly and have valid flags */
|
|
yuuji@0
|
1118 if (stream->rdonly && elt->valid) return;
|
|
yuuji@0
|
1119 /* set the seek pointer */
|
|
yuuji@0
|
1120 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
|
|
yuuji@0
|
1121 elt->private.special.text.size - 14,L_SET);
|
|
yuuji@0
|
1122 /* read the new flags */
|
|
yuuji@0
|
1123 if (read (LOCAL->fd,LOCAL->buf,12) < 0) {
|
|
yuuji@0
|
1124 sprintf (LOCAL->buf,"Unable to read new status: %s",strerror (errno));
|
|
yuuji@0
|
1125 fatal (LOCAL->buf);
|
|
yuuji@0
|
1126 }
|
|
yuuji@0
|
1127 /* calculate system flags */
|
|
yuuji@0
|
1128 i = (((LOCAL->buf[10]-'0') * 8) + LOCAL->buf[11]-'0');
|
|
yuuji@0
|
1129 elt->seen = i & fSEEN ? T : NIL; elt->deleted = i & fDELETED ? T : NIL;
|
|
yuuji@0
|
1130 elt->flagged = i & fFLAGGED ? T : NIL;
|
|
yuuji@0
|
1131 elt->answered = i & fANSWERED ? T : NIL; elt->draft = i & fDRAFT ? T : NIL;
|
|
yuuji@0
|
1132 LOCAL->buf[10] = '\0'; /* tie off flags */
|
|
yuuji@0
|
1133 j = strtoul(LOCAL->buf,NIL,8);/* get user flags value */
|
|
yuuji@0
|
1134 /* set up all valid user flags (reversed!) */
|
|
yuuji@0
|
1135 while (j) if (((i = 29 - find_rightmost_bit (&j)) < NUSERFLAGS) &&
|
|
yuuji@0
|
1136 stream->user_flags[i]) elt->user_flags |= 1 << i;
|
|
yuuji@0
|
1137 elt->valid = T; /* have valid flags now */
|
|
yuuji@0
|
1138 }
|
|
yuuji@0
|
1139
|
|
yuuji@0
|
1140 /* MTX update status string
|
|
yuuji@0
|
1141 * Accepts: MAIL stream
|
|
yuuji@0
|
1142 * message number
|
|
yuuji@0
|
1143 * flag saying whether or not to sync
|
|
yuuji@0
|
1144 */
|
|
yuuji@0
|
1145
|
|
yuuji@0
|
1146 void mtx_update_status (MAILSTREAM *stream,unsigned long msgno,long syncflag)
|
|
yuuji@0
|
1147 {
|
|
yuuji@0
|
1148 struct utimbuf times;
|
|
yuuji@0
|
1149 struct stat sbuf;
|
|
yuuji@0
|
1150 MESSAGECACHE *elt = mail_elt (stream,msgno);
|
|
yuuji@0
|
1151 unsigned long j,k = 0;
|
|
yuuji@0
|
1152 /* readonly */
|
|
yuuji@0
|
1153 if (stream->rdonly || !elt->valid) mtx_read_flags (stream,elt);
|
|
yuuji@0
|
1154 else { /* readwrite */
|
|
yuuji@0
|
1155 j = elt->user_flags; /* get user flags */
|
|
yuuji@0
|
1156 /* reverse bits (dontcha wish we had CIRC?) */
|
|
yuuji@0
|
1157 while (j) k |= 1 << (29 - find_rightmost_bit (&j));
|
|
yuuji@0
|
1158 /* print new flag string */
|
|
yuuji@0
|
1159 sprintf (LOCAL->buf,"%010lo%02o",k,(unsigned)
|
|
yuuji@0
|
1160 (fOLD + (fSEEN * elt->seen) + (fDELETED * elt->deleted) +
|
|
yuuji@0
|
1161 (fFLAGGED * elt->flagged) + (fANSWERED * elt->answered) +
|
|
yuuji@0
|
1162 (fDRAFT * elt->draft)));
|
|
yuuji@0
|
1163 while (T) { /* get to that place in the file */
|
|
yuuji@0
|
1164 lseek (LOCAL->fd,(off_t) elt->private.special.offset +
|
|
yuuji@0
|
1165 elt->private.special.text.size - 14,L_SET);
|
|
yuuji@0
|
1166 /* write new flags */
|
|
yuuji@0
|
1167 if (write (LOCAL->fd,LOCAL->buf,12) > 0) break;
|
|
yuuji@0
|
1168 mm_notify (stream,strerror (errno),WARN);
|
|
yuuji@0
|
1169 mm_diskerror (stream,errno,T);
|
|
yuuji@0
|
1170 }
|
|
yuuji@0
|
1171 if (syncflag) { /* sync if requested */
|
|
yuuji@0
|
1172 fsync (LOCAL->fd);
|
|
yuuji@0
|
1173 fstat (LOCAL->fd,&sbuf); /* get new write time */
|
|
yuuji@0
|
1174 times.modtime = LOCAL->filetime = sbuf.st_mtime;
|
|
yuuji@0
|
1175 times.actime = time (0); /* make sure read is later */
|
|
yuuji@0
|
1176 utime (stream->mailbox,×);
|
|
yuuji@0
|
1177 }
|
|
yuuji@0
|
1178 }
|
|
yuuji@0
|
1179 }
|
|
yuuji@0
|
1180
|
|
yuuji@0
|
1181 /* MTX locate header for a message
|
|
yuuji@0
|
1182 * Accepts: MAIL stream
|
|
yuuji@0
|
1183 * message number
|
|
yuuji@0
|
1184 * pointer to returned header size
|
|
yuuji@0
|
1185 * Returns: position of header in file
|
|
yuuji@0
|
1186 */
|
|
yuuji@0
|
1187
|
|
yuuji@0
|
1188 unsigned long mtx_hdrpos (MAILSTREAM *stream,unsigned long msgno,
|
|
yuuji@0
|
1189 unsigned long *size)
|
|
yuuji@0
|
1190 {
|
|
yuuji@0
|
1191 unsigned long siz;
|
|
yuuji@0
|
1192 long i = 0;
|
|
yuuji@0
|
1193 int q = 0;
|
|
yuuji@0
|
1194 char *s,tmp[MAILTMPLEN];
|
|
yuuji@0
|
1195 MESSAGECACHE *elt = mtx_elt (stream,msgno);
|
|
yuuji@0
|
1196 unsigned long ret = elt->private.special.offset +
|
|
yuuji@0
|
1197 elt->private.special.text.size;
|
|
yuuji@0
|
1198 /* is header size known? */
|
|
yuuji@0
|
1199 if (!(*size = elt->private.msg.header.text.size)) {
|
|
yuuji@0
|
1200 lseek (LOCAL->fd,ret,L_SET);/* get to header position */
|
|
yuuji@0
|
1201 /* search message for CRLF CRLF */
|
|
yuuji@0
|
1202 for (siz = 1,s = tmp; siz <= elt->rfc822_size; siz++) {
|
|
yuuji@0
|
1203 /* read another buffer as necessary */
|
|
yuuji@0
|
1204 if ((--i <= 0) && /* buffer empty? */
|
|
yuuji@0
|
1205 (read (LOCAL->fd,s = tmp,
|
|
yuuji@0
|
1206 i = min (elt->rfc822_size - siz,(long) MAILTMPLEN)) < 0))
|
|
yuuji@0
|
1207 return ret; /* I/O error? */
|
|
yuuji@0
|
1208 switch (q) { /* sniff at buffer */
|
|
yuuji@0
|
1209 case 0: /* first character */
|
|
yuuji@0
|
1210 q = (*s++ == '\015') ? 1 : 0;
|
|
yuuji@0
|
1211 break;
|
|
yuuji@0
|
1212 case 1: /* second character */
|
|
yuuji@0
|
1213 q = (*s++ == '\012') ? 2 : 0;
|
|
yuuji@0
|
1214 break;
|
|
yuuji@0
|
1215 case 2: /* third character */
|
|
yuuji@0
|
1216 q = (*s++ == '\015') ? 3 : 0;
|
|
yuuji@0
|
1217 break;
|
|
yuuji@0
|
1218 case 3: /* fourth character */
|
|
yuuji@0
|
1219 if (*s++ == '\012') { /* have the sequence? */
|
|
yuuji@0
|
1220 /* yes, note for later */
|
|
yuuji@0
|
1221 elt->private.msg.header.text.size = *size = siz;
|
|
yuuji@0
|
1222 return ret;
|
|
yuuji@0
|
1223 }
|
|
yuuji@0
|
1224 q = 0; /* lost... */
|
|
yuuji@0
|
1225 break;
|
|
yuuji@0
|
1226 }
|
|
yuuji@0
|
1227 }
|
|
yuuji@0
|
1228 /* header consumes entire message */
|
|
yuuji@0
|
1229 elt->private.msg.header.text.size = *size = elt->rfc822_size;
|
|
yuuji@0
|
1230 }
|
|
yuuji@0
|
1231 return ret;
|
|
yuuji@0
|
1232 }
|
