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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: Dummy 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: 9 May 1991
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26 * Last Edited: 1 June 2007
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27 */
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28
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29
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30 #include <stdio.h>
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31 #include <ctype.h>
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32 #include <errno.h>
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33 extern int errno; /* just in case */
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34 #include "mail.h"
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35 #include "osdep.h"
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36 #include <pwd.h>
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37 #include <sys/stat.h>
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38 #include "dummy.h"
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39 #include "misc.h"
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40
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41 /* Function prototypes */
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42
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43 DRIVER *dummy_valid (char *name);
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44 void *dummy_parameters (long function,void *value);
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45 void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
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46 long level);
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47 long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
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48 long attributes,char *contents);
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49 long dummy_subscribe (MAILSTREAM *stream,char *mailbox);
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50 MAILSTREAM *dummy_open (MAILSTREAM *stream);
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51 void dummy_close (MAILSTREAM *stream,long options);
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52 long dummy_ping (MAILSTREAM *stream);
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53 void dummy_check (MAILSTREAM *stream);
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54 long dummy_expunge (MAILSTREAM *stream,char *sequence,long options);
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55 long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
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56 long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
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57
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58 /* Dummy routines */
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59
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60
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61 /* Driver dispatch used by MAIL */
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62
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63 DRIVER dummydriver = {
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64 "dummy", /* driver name */
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65 DR_LOCAL|DR_MAIL, /* driver flags */
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66 (DRIVER *) NIL, /* next driver */
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67 dummy_valid, /* mailbox is valid for us */
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68 dummy_parameters, /* manipulate parameters */
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69 dummy_scan, /* scan mailboxes */
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70 dummy_list, /* list mailboxes */
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71 dummy_lsub, /* list subscribed mailboxes */
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72 dummy_subscribe, /* subscribe to mailbox */
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73 NIL, /* unsubscribe from mailbox */
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74 dummy_create, /* create mailbox */
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75 dummy_delete, /* delete mailbox */
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76 dummy_rename, /* rename mailbox */
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77 mail_status_default, /* status of mailbox */
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78 dummy_open, /* open mailbox */
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79 dummy_close, /* close mailbox */
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80 NIL, /* fetch message "fast" attributes */
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81 NIL, /* fetch message flags */
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82 NIL, /* fetch overview */
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83 NIL, /* fetch message structure */
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84 NIL, /* fetch header */
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85 NIL, /* fetch text */
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86 NIL, /* fetch message data */
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87 NIL, /* unique identifier */
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88 NIL, /* message number from UID */
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89 NIL, /* modify flags */
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90 NIL, /* per-message modify flags */
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91 NIL, /* search for message based on criteria */
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92 NIL, /* sort messages */
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93 NIL, /* thread messages */
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94 dummy_ping, /* ping mailbox to see if still alive */
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95 dummy_check, /* check for new messages */
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96 dummy_expunge, /* expunge deleted messages */
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97 dummy_copy, /* copy messages to another mailbox */
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98 dummy_append, /* append string message to mailbox */
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99 NIL /* garbage collect stream */
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100 };
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101
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102 /* prototype stream */
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103 MAILSTREAM dummyproto = {&dummydriver};
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104
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105 /* Dummy validate mailbox
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106 * Accepts: mailbox name
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107 * Returns: our driver if name is valid, NIL otherwise
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108 */
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109
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110 DRIVER *dummy_valid (char *name)
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111 {
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112 char *s,tmp[MAILTMPLEN];
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113 struct stat sbuf;
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114 /* must be valid local mailbox */
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115 if (name && *name && (*name != '{') && (s = mailboxfile (tmp,name))) {
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116 /* indeterminate clearbox INBOX */
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117 if (!*s) return &dummydriver;
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118 else if (!stat (s,&sbuf)) switch (sbuf.st_mode & S_IFMT) {
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119 case S_IFREG:
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120 case S_IFDIR:
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121 return &dummydriver;
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122 }
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123 /* blackbox INBOX does not exist yet */
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124 else if (!compare_cstring (name,"INBOX")) return &dummydriver;
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125 }
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126 return NIL;
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127 }
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128
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129
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130 /* Dummy manipulate driver parameters
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131 * Accepts: function code
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132 * function-dependent value
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133 * Returns: function-dependent return value
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134 */
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135
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136 void *dummy_parameters (long function,void *value)
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137 {
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138 void *ret = NIL;
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139 switch ((int) function) {
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140 case GET_INBOXPATH:
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141 if (value) ret = dummy_file ((char *) value,"INBOX");
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142 break;
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143 }
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144 return ret;
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145 }
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146
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147 /* Dummy scan mailboxes
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148 * Accepts: mail stream
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149 * reference
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150 * pattern to search
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151 * string to scan
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152 */
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153
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154 void dummy_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents)
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155 {
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156 DRIVER *drivers;
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157 char *s,test[MAILTMPLEN],file[MAILTMPLEN];
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158 long i;
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159 if (!pat || !*pat) { /* empty pattern? */
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160 if (dummy_canonicalize (test,ref,"*")) {
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161 /* tie off name at root */
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162 if (s = strchr (test,'/')) *++s = '\0';
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163 else test[0] = '\0';
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164 dummy_listed (stream,'/',test,LATT_NOSELECT,NIL);
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165 }
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166 }
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167 /* get canonical form of name */
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168 else if (dummy_canonicalize (test,ref,pat)) {
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169 /* found any wildcards? */
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170 if (s = strpbrk (test,"%*")) {
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171 /* yes, copy name up to that point */
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172 strncpy (file,test,i = s - test);
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173 file[i] = '\0'; /* tie off */
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174 }
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175 else strcpy (file,test); /* use just that name then */
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176 if (s = strrchr (file,'/')){/* find directory name */
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177 *++s = '\0'; /* found, tie off at that point */
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178 s = file;
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179 }
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180 /* silly case */
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181 else if ((file[0] == '~') || (file[0] == '#')) s = file;
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182 /* do the work */
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183 dummy_list_work (stream,s,test,contents,0);
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184 /* always an INBOX */
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185 if (pmatch ("INBOX",ucase (test))) {
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186 /* done if have a dirfmt INBOX */
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187 for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL);
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188 drivers && !(!(drivers->flags & DR_DISABLE) &&
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189 (drivers->flags & DR_DIRFMT) &&
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190 (*drivers->valid) ("INBOX")); drivers = drivers->next);
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191 /* list INBOX appropriately */
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192 dummy_listed (stream,drivers ? '/' : NIL,"INBOX",
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193 drivers ? NIL : LATT_NOINFERIORS,contents);
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194 }
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195 }
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196 }
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197
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198
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199 /* Dummy list mailboxes
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200 * Accepts: mail stream
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201 * reference
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202 * pattern to search
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203 */
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204
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205 void dummy_list (MAILSTREAM *stream,char *ref,char *pat)
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206 {
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207 dummy_scan (stream,ref,pat,NIL);
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208 }
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209
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210 /* Dummy list subscribed mailboxes
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211 * Accepts: mail stream
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212 * reference
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213 * pattern to search
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214 */
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215
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216 void dummy_lsub (MAILSTREAM *stream,char *ref,char *pat)
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217 {
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218 void *sdb = NIL;
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219 char *s,*t,test[MAILTMPLEN],tmp[MAILTMPLEN];
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220 int showuppers = pat[strlen (pat) - 1] == '%';
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221 /* get canonical form of name */
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222 if (dummy_canonicalize (test,ref,pat) && (s = sm_read (&sdb))) do
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223 if (*s != '{') {
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224 if (!compare_cstring (s,"INBOX") &&
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225 pmatch ("INBOX",ucase (strcpy (tmp,test))))
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226 mm_lsub (stream,NIL,s,LATT_NOINFERIORS);
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227 else if (pmatch_full (s,test,'/')) mm_lsub (stream,'/',s,NIL);
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228 else while (showuppers && (t = strrchr (s,'/'))) {
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229 *t = '\0'; /* tie off the name */
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230 if (pmatch_full (s,test,'/')) mm_lsub (stream,'/',s,LATT_NOSELECT);
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231 }
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232 }
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233 while (s = sm_read (&sdb)); /* until no more subscriptions */
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234 }
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235
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236
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237 /* Dummy subscribe to mailbox
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238 * Accepts: mail stream
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239 * mailbox to add to subscription list
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240 * Returns: T on success, NIL on failure
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241 */
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242
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243 long dummy_subscribe (MAILSTREAM *stream,char *mailbox)
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244 {
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245 char *s,tmp[MAILTMPLEN];
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246 struct stat sbuf;
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247 /* must be valid local mailbox */
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248 if ((s = mailboxfile (tmp,mailbox)) && *s && !stat (s,&sbuf))
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249 switch (sbuf.st_mode & S_IFMT) {
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250 case S_IFDIR: /* allow but snarl */
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251 sprintf (tmp,"CLIENT BUG DETECTED: subscribe of non-mailbox directory %.80s",
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252 mailbox);
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253 MM_NOTIFY (stream,tmp,WARN);
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254 case S_IFREG:
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255 return sm_subscribe (mailbox);
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256 }
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257 sprintf (tmp,"Can't subscribe %.80s: not a mailbox",mailbox);
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258 MM_LOG (tmp,ERROR);
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259 return NIL;
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260 }
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261
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262 /* Dummy list mailboxes worker routine
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263 * Accepts: mail stream
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264 * directory name to search
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265 * search pattern
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266 * string to scan
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267 * search level
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268 */
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269
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270 void dummy_list_work (MAILSTREAM *stream,char *dir,char *pat,char *contents,
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271 long level)
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272 {
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273 DRIVER *drivers;
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274 dirfmttest_t dt;
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275 DIR *dp;
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276 struct direct *d;
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277 struct stat sbuf;
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278 char tmp[MAILTMPLEN],path[MAILTMPLEN];
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279 size_t len = 0;
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280 /* punt if bogus name */
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281 if (!mailboxdir (tmp,dir,NIL)) return;
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282 if (dp = opendir (tmp)) { /* do nothing if can't open directory */
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283 /* see if a non-namespace directory format */
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284 for (drivers = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
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285 dir && !dt && drivers; drivers = drivers->next)
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286 if (!(drivers->flags & DR_DISABLE) && (drivers->flags & DR_DIRFMT) &&
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287 (*drivers->valid) (dir))
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288 dt = mail_parameters ((*drivers->open) (NIL),GET_DIRFMTTEST,NIL);
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289 /* list it if at top-level */
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290 if (!level && dir && pmatch_full (dir,pat,'/') && !pmatch (dir,"INBOX"))
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291 dummy_listed (stream,'/',dir,dt ? NIL : LATT_NOSELECT,contents);
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292
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293 /* scan directory, ignore . and .. */
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294 if (!dir || dir[(len = strlen (dir)) - 1] == '/') while (d = readdir (dp))
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295 if ((!(dt && (*dt) (d->d_name))) &&
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296 ((d->d_name[0] != '.') ||
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297 (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
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298 (d->d_name[1] && (((d->d_name[1] != '.') || d->d_name[2]))))) &&
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299 ((len + strlen (d->d_name)) <= NETMAXMBX)) {
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300 /* see if name is useful */
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301 if (dir) sprintf (tmp,"%s%s",dir,d->d_name);
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302 else strcpy (tmp,d->d_name);
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yuuji@0
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303 /* make sure useful and can get info */
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304 if ((pmatch_full (strcpy (path,tmp),pat,'/') ||
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305 pmatch_full (strcat (path,"/"),pat,'/') ||
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306 dmatch (path,pat,'/')) &&
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307 mailboxdir (path,dir,"x") && (len = strlen (path)) &&
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308 strcpy (path+len-1,d->d_name) && !stat (path,&sbuf)) {
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309 /* only interested in file type */
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310 switch (sbuf.st_mode & S_IFMT) {
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311 case S_IFDIR: /* directory? */
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312 /* form with trailing / */
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313 sprintf (path,"%s/",tmp);
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314 /* skip listing if INBOX */
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315 if (!pmatch (tmp,"INBOX")) {
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316 if (pmatch_full (tmp,pat,'/')) {
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317 if (!dummy_listed (stream,'/',tmp,LATT_NOSELECT,contents))
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318 break;
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319 }
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yuuji@0
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320 /* try again with trailing / */
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321 else if (pmatch_full (path,pat,'/') &&
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322 !dummy_listed (stream,'/',path,LATT_NOSELECT,contents))
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323 break;
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324 }
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325 if (dmatch (path,pat,'/') &&
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326 (level < (long) mail_parameters (NIL,GET_LISTMAXLEVEL,NIL)))
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327 dummy_list_work (stream,path,pat,contents,level+1);
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328 break;
|
yuuji@0
|
329 case S_IFREG: /* ordinary name */
|
yuuji@0
|
330 /* Must use ctime for systems that don't update mtime properly */
|
yuuji@0
|
331 if (pmatch_full (tmp,pat,'/') && compare_cstring (tmp,"INBOX"))
|
yuuji@0
|
332 dummy_listed (stream,'/',tmp,LATT_NOINFERIORS +
|
yuuji@0
|
333 ((sbuf.st_size && (sbuf.st_atime < sbuf.st_ctime))?
|
yuuji@0
|
334 LATT_MARKED : LATT_UNMARKED),contents);
|
yuuji@0
|
335 break;
|
yuuji@0
|
336 }
|
yuuji@0
|
337 }
|
yuuji@0
|
338 }
|
yuuji@0
|
339 closedir (dp); /* all done, flush directory */
|
yuuji@0
|
340 }
|
yuuji@0
|
341 }
|
yuuji@0
|
342
|
yuuji@0
|
343 /* Scan file for contents
|
yuuji@0
|
344 * Accepts: driver to use
|
yuuji@0
|
345 * file name
|
yuuji@0
|
346 * desired contents
|
yuuji@0
|
347 * length of contents
|
yuuji@0
|
348 * size of file
|
yuuji@0
|
349 * Returns: NIL if contents not found, T if found
|
yuuji@0
|
350 */
|
yuuji@0
|
351
|
yuuji@0
|
352 long scan_contents (DRIVER *dtb,char *name,char *contents,
|
yuuji@0
|
353 unsigned long csiz,unsigned long fsiz)
|
yuuji@0
|
354 {
|
yuuji@0
|
355 scancontents_t sc = dtb ?
|
yuuji@0
|
356 (scancontents_t) (*dtb->parameters) (GET_SCANCONTENTS,NIL) : NIL;
|
yuuji@0
|
357 return (*(sc ? sc : dummy_scan_contents)) (name,contents,csiz,fsiz);
|
yuuji@0
|
358 }
|
yuuji@0
|
359
|
yuuji@0
|
360
|
yuuji@0
|
361 /* Scan file for contents
|
yuuji@0
|
362 * Accepts: file name
|
yuuji@0
|
363 * desired contents
|
yuuji@0
|
364 * length of contents
|
yuuji@0
|
365 * size of file
|
yuuji@0
|
366 * Returns: NIL if contents not found, T if found
|
yuuji@0
|
367 */
|
yuuji@0
|
368
|
yuuji@0
|
369 #define BUFSIZE 4*MAILTMPLEN
|
yuuji@0
|
370
|
yuuji@0
|
371 long dummy_scan_contents (char *name,char *contents,unsigned long csiz,
|
yuuji@0
|
372 unsigned long fsiz)
|
yuuji@0
|
373 {
|
yuuji@0
|
374 int fd;
|
yuuji@0
|
375 unsigned long ssiz,bsiz;
|
yuuji@0
|
376 char *buf;
|
yuuji@0
|
377 /* forget it if can't select or open */
|
yuuji@0
|
378 if ((fd = open (name,O_RDONLY,NIL)) >= 0) {
|
yuuji@0
|
379 /* get buffer including slop */
|
yuuji@0
|
380 buf = (char *) fs_get (BUFSIZE + (ssiz = 4 * ((csiz / 4) + 1)) + 1);
|
yuuji@0
|
381 memset (buf,'\0',ssiz); /* no slop area the first time */
|
yuuji@0
|
382 while (fsiz) { /* until end of file */
|
yuuji@0
|
383 read (fd,buf+ssiz,bsiz = min (fsiz,BUFSIZE));
|
yuuji@0
|
384 if (search ((unsigned char *) buf,bsiz+ssiz,
|
yuuji@0
|
385 (unsigned char *) contents,csiz)) break;
|
yuuji@0
|
386 memcpy (buf,buf+BUFSIZE,ssiz);
|
yuuji@0
|
387 fsiz -= bsiz; /* note that we read that much */
|
yuuji@0
|
388 }
|
yuuji@0
|
389 fs_give ((void **) &buf); /* flush buffer */
|
yuuji@0
|
390 close (fd); /* finished with file */
|
yuuji@0
|
391 if (fsiz) return T; /* found */
|
yuuji@0
|
392 }
|
yuuji@0
|
393 return NIL; /* not found */
|
yuuji@0
|
394 }
|
yuuji@0
|
395
|
yuuji@0
|
396 /* Mailbox found
|
yuuji@0
|
397 * Accepts: MAIL stream
|
yuuji@0
|
398 * hierarchy delimiter
|
yuuji@0
|
399 * mailbox name
|
yuuji@0
|
400 * attributes
|
yuuji@0
|
401 * contents to search before calling mm_list()
|
yuuji@0
|
402 * Returns: NIL if should abort hierarchy search, else T (currently always)
|
yuuji@0
|
403 */
|
yuuji@0
|
404
|
yuuji@0
|
405 long dummy_listed (MAILSTREAM *stream,char delimiter,char *name,
|
yuuji@0
|
406 long attributes,char *contents)
|
yuuji@0
|
407 {
|
yuuji@0
|
408 DRIVER *d;
|
yuuji@0
|
409 DIR *dp;
|
yuuji@0
|
410 struct direct *dr;
|
yuuji@0
|
411 dirfmttest_t dt;
|
yuuji@0
|
412 unsigned long csiz;
|
yuuji@0
|
413 struct stat sbuf;
|
yuuji@0
|
414 int nochild;
|
yuuji@0
|
415 char *s,tmp[MAILTMPLEN];
|
yuuji@0
|
416 if (!(attributes & LATT_NOINFERIORS) && mailboxdir (tmp,name,NIL) &&
|
yuuji@0
|
417 (dp = opendir (tmp))) { /* if not \NoInferiors */
|
yuuji@0
|
418 /* locate dirfmttest if any */
|
yuuji@0
|
419 for (d = (DRIVER *) mail_parameters (NIL,GET_DRIVERS,NIL), dt = NIL;
|
yuuji@0
|
420 !dt && d; d = d->next)
|
yuuji@0
|
421 if (!(d->flags & DR_DISABLE) && (d->flags & DR_DIRFMT) &&
|
yuuji@0
|
422 (*d->valid) (name))
|
yuuji@0
|
423 dt = mail_parameters ((*d->open) (NIL),GET_DIRFMTTEST,NIL);
|
yuuji@0
|
424 /* scan directory for children */
|
yuuji@0
|
425 for (nochild = T; nochild && (dr = readdir (dp)); )
|
yuuji@0
|
426 if ((!(dt && (*dt) (dr->d_name))) &&
|
yuuji@0
|
427 ((dr->d_name[0] != '.') ||
|
yuuji@0
|
428 (((long) mail_parameters (NIL,GET_HIDEDOTFILES,NIL)) ? NIL :
|
yuuji@0
|
429 (dr->d_name[1] && ((dr->d_name[1] != '.') || dr->d_name[2])))))
|
yuuji@0
|
430 nochild = NIL;
|
yuuji@0
|
431 attributes |= nochild ? LATT_HASNOCHILDREN : LATT_HASCHILDREN;
|
yuuji@0
|
432 closedir (dp); /* all done, flush directory */
|
yuuji@0
|
433 }
|
yuuji@0
|
434 d = NIL; /* don't \NoSelect dir if it has a driver */
|
yuuji@0
|
435 if ((attributes & LATT_NOSELECT) && (d = mail_valid (NIL,name,NIL)) &&
|
yuuji@0
|
436 (d != &dummydriver)) attributes &= ~LATT_NOSELECT;
|
yuuji@0
|
437 if (!contents || /* notify main program */
|
yuuji@0
|
438 (!(attributes & LATT_NOSELECT) && (csiz = strlen (contents)) &&
|
yuuji@0
|
439 (s = mailboxfile (tmp,name)) &&
|
yuuji@0
|
440 (*s || (s = mail_parameters (NIL,GET_INBOXPATH,tmp))) &&
|
yuuji@0
|
441 !stat (s,&sbuf) && (d || (csiz <= sbuf.st_size)) &&
|
yuuji@0
|
442 SAFE_SCAN_CONTENTS (d,tmp,contents,csiz,sbuf.st_size)))
|
yuuji@0
|
443 mm_list (stream,delimiter,name,attributes);
|
yuuji@0
|
444 return T;
|
yuuji@0
|
445 }
|
yuuji@0
|
446
|
yuuji@0
|
447 /* Dummy create mailbox
|
yuuji@0
|
448 * Accepts: mail stream
|
yuuji@0
|
449 * mailbox name to create
|
yuuji@0
|
450 * Returns: T on success, NIL on failure
|
yuuji@0
|
451 */
|
yuuji@0
|
452
|
yuuji@0
|
453 long dummy_create (MAILSTREAM *stream,char *mailbox)
|
yuuji@0
|
454 {
|
yuuji@0
|
455 char *s,tmp[MAILTMPLEN];
|
yuuji@0
|
456 long ret = NIL;
|
yuuji@0
|
457 /* validate name */
|
yuuji@0
|
458 if (!(compare_cstring (mailbox,"INBOX") && (s = dummy_file (tmp,mailbox)))) {
|
yuuji@0
|
459 sprintf (tmp,"Can't create %.80s: invalid name",mailbox);
|
yuuji@0
|
460 MM_LOG (tmp,ERROR);
|
yuuji@0
|
461 }
|
yuuji@0
|
462 /* create the name, done if made directory */
|
yuuji@0
|
463 else if ((ret = dummy_create_path (stream,tmp,get_dir_protection(mailbox)))&&
|
yuuji@0
|
464 (s = strrchr (s,'/')) && !s[1]) return T;
|
yuuji@0
|
465 return ret ? set_mbx_protections (mailbox,tmp) : NIL;
|
yuuji@0
|
466 }
|
yuuji@0
|
467
|
yuuji@0
|
468 /* Dummy create path
|
yuuji@0
|
469 * Accepts: mail stream
|
yuuji@0
|
470 * path name to create
|
yuuji@0
|
471 * directory mode
|
yuuji@0
|
472 * Returns: T on success, NIL on failure
|
yuuji@0
|
473 */
|
yuuji@0
|
474
|
yuuji@0
|
475 long dummy_create_path (MAILSTREAM *stream,char *path,long dirmode)
|
yuuji@0
|
476 {
|
yuuji@0
|
477 struct stat sbuf;
|
yuuji@0
|
478 char c,*s,tmp[MAILTMPLEN];
|
yuuji@0
|
479 int fd;
|
yuuji@0
|
480 long ret = NIL;
|
yuuji@0
|
481 char *t = strrchr (path,'/');
|
yuuji@0
|
482 int wantdir = t && !t[1];
|
yuuji@0
|
483 int mask = umask (0);
|
yuuji@0
|
484 if (wantdir) *t = '\0'; /* flush trailing delimiter for directory */
|
yuuji@0
|
485 if (s = strrchr (path,'/')) { /* found superior to this name? */
|
yuuji@0
|
486 c = *++s; /* remember first character of inferior */
|
yuuji@0
|
487 *s = '\0'; /* tie off to get just superior */
|
yuuji@0
|
488 /* name doesn't exist, create it */
|
yuuji@0
|
489 if ((stat (path,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
|
yuuji@0
|
490 !dummy_create_path (stream,path,dirmode)) {
|
yuuji@0
|
491 umask (mask); /* restore mask */
|
yuuji@0
|
492 return NIL;
|
yuuji@0
|
493 }
|
yuuji@0
|
494 *s = c; /* restore full name */
|
yuuji@0
|
495 }
|
yuuji@0
|
496 if (wantdir) { /* want to create directory? */
|
yuuji@0
|
497 ret = !mkdir (path,(int) dirmode);
|
yuuji@0
|
498 *t = '/'; /* restore directory delimiter */
|
yuuji@0
|
499 }
|
yuuji@0
|
500 /* create file */
|
yuuji@0
|
501 else if ((fd = open (path,O_WRONLY|O_CREAT|O_EXCL,
|
yuuji@0
|
502 (long) mail_parameters(NIL,GET_MBXPROTECTION,NIL))) >=0)
|
yuuji@0
|
503 ret = !close (fd);
|
yuuji@0
|
504 if (!ret) { /* error? */
|
yuuji@0
|
505 sprintf (tmp,"Can't create mailbox node %.80s: %.80s",path,strerror (errno));
|
yuuji@0
|
506 MM_LOG (tmp,ERROR);
|
yuuji@0
|
507 }
|
yuuji@0
|
508 umask (mask); /* restore mask */
|
yuuji@0
|
509 return ret; /* return status */
|
yuuji@0
|
510 }
|
yuuji@0
|
511
|
yuuji@0
|
512 /* Dummy delete mailbox
|
yuuji@0
|
513 * Accepts: mail stream
|
yuuji@0
|
514 * mailbox name to delete
|
yuuji@0
|
515 * Returns: T on success, NIL on failure
|
yuuji@0
|
516 */
|
yuuji@0
|
517
|
yuuji@0
|
518 long dummy_delete (MAILSTREAM *stream,char *mailbox)
|
yuuji@0
|
519 {
|
yuuji@0
|
520 struct stat sbuf;
|
yuuji@0
|
521 char *s,tmp[MAILTMPLEN];
|
yuuji@0
|
522 if (!(s = dummy_file (tmp,mailbox))) {
|
yuuji@0
|
523 sprintf (tmp,"Can't delete - invalid name: %.80s",s);
|
yuuji@0
|
524 MM_LOG (tmp,ERROR);
|
yuuji@0
|
525 }
|
yuuji@0
|
526 /* no trailing / (workaround BSD kernel bug) */
|
yuuji@0
|
527 if ((s = strrchr (tmp,'/')) && !s[1]) *s = '\0';
|
yuuji@0
|
528 if (stat (tmp,&sbuf) || ((sbuf.st_mode & S_IFMT) == S_IFDIR) ?
|
yuuji@0
|
529 rmdir (tmp) : unlink (tmp)) {
|
yuuji@0
|
530 sprintf (tmp,"Can't delete mailbox %.80s: %.80s",mailbox,strerror (errno));
|
yuuji@0
|
531 MM_LOG (tmp,ERROR);
|
yuuji@0
|
532 return NIL;
|
yuuji@0
|
533 }
|
yuuji@0
|
534 return T; /* return success */
|
yuuji@0
|
535 }
|
yuuji@0
|
536
|
yuuji@0
|
537 /* Mail rename mailbox
|
yuuji@0
|
538 * Accepts: mail stream
|
yuuji@0
|
539 * old mailbox name
|
yuuji@0
|
540 * new mailbox name
|
yuuji@0
|
541 * Returns: T on success, NIL on failure
|
yuuji@0
|
542 */
|
yuuji@0
|
543
|
yuuji@0
|
544 long dummy_rename (MAILSTREAM *stream,char *old,char *newname)
|
yuuji@0
|
545 {
|
yuuji@0
|
546 struct stat sbuf;
|
yuuji@0
|
547 char c,*s,tmp[MAILTMPLEN],mbx[MAILTMPLEN],oldname[MAILTMPLEN];
|
yuuji@0
|
548 /* no trailing / allowed */
|
yuuji@0
|
549 if (!dummy_file (oldname,old) || !(s = dummy_file (mbx,newname)) ||
|
yuuji@0
|
550 stat (oldname,&sbuf) || ((s = strrchr (s,'/')) && !s[1] &&
|
yuuji@0
|
551 ((sbuf.st_mode & S_IFMT) != S_IFDIR))) {
|
yuuji@0
|
552 sprintf (mbx,"Can't rename %.80s to %.80s: invalid name",old,newname);
|
yuuji@0
|
553 MM_LOG (mbx,ERROR);
|
yuuji@0
|
554 return NIL;
|
yuuji@0
|
555 }
|
yuuji@0
|
556 if (s) { /* found a directory delimiter? */
|
yuuji@0
|
557 if (!s[1]) *s = '\0'; /* ignore trailing delimiter */
|
yuuji@0
|
558 else { /* found superior to destination name? */
|
yuuji@0
|
559 c = *++s; /* remember first character of inferior */
|
yuuji@0
|
560 *s = '\0'; /* tie off to get just superior */
|
yuuji@0
|
561 /* name doesn't exist, create it */
|
yuuji@0
|
562 if ((stat (mbx,&sbuf) || ((sbuf.st_mode & S_IFMT) != S_IFDIR)) &&
|
yuuji@0
|
563 !dummy_create (stream,mbx)) return NIL;
|
yuuji@0
|
564 *s = c; /* restore full name */
|
yuuji@0
|
565 }
|
yuuji@0
|
566 }
|
yuuji@0
|
567 /* rename of non-ex INBOX creates dest */
|
yuuji@0
|
568 if (!compare_cstring (old,"INBOX") && stat (oldname,&sbuf))
|
yuuji@0
|
569 return dummy_create (NIL,mbx);
|
yuuji@0
|
570 if (rename (oldname,mbx)) {
|
yuuji@0
|
571 sprintf (tmp,"Can't rename mailbox %.80s to %.80s: %.80s",old,newname,
|
yuuji@0
|
572 strerror (errno));
|
yuuji@0
|
573 MM_LOG (tmp,ERROR);
|
yuuji@0
|
574 return NIL;
|
yuuji@0
|
575 }
|
yuuji@0
|
576 return T; /* return success */
|
yuuji@0
|
577 }
|
yuuji@0
|
578
|
yuuji@0
|
579 /* Dummy open
|
yuuji@0
|
580 * Accepts: stream to open
|
yuuji@0
|
581 * Returns: stream on success, NIL on failure
|
yuuji@0
|
582 */
|
yuuji@0
|
583
|
yuuji@0
|
584 MAILSTREAM *dummy_open (MAILSTREAM *stream)
|
yuuji@0
|
585 {
|
yuuji@0
|
586 int fd;
|
yuuji@0
|
587 char err[MAILTMPLEN],tmp[MAILTMPLEN];
|
yuuji@0
|
588 struct stat sbuf;
|
yuuji@0
|
589 /* OP_PROTOTYPE call */
|
yuuji@0
|
590 if (!stream) return &dummyproto;
|
yuuji@0
|
591 err[0] = '\0'; /* no error message yet */
|
yuuji@0
|
592 /* can we open the file? */
|
yuuji@0
|
593 if (!dummy_file (tmp,stream->mailbox))
|
yuuji@0
|
594 sprintf (err,"Can't open this name: %.80s",stream->mailbox);
|
yuuji@0
|
595 else if ((fd = open (tmp,O_RDONLY,NIL)) < 0) {
|
yuuji@0
|
596 /* no, error unless INBOX */
|
yuuji@0
|
597 if (compare_cstring (stream->mailbox,"INBOX"))
|
yuuji@0
|
598 sprintf (err,"%.80s: %.80s",strerror (errno),stream->mailbox);
|
yuuji@0
|
599 }
|
yuuji@0
|
600 else { /* file had better be empty then */
|
yuuji@0
|
601 fstat (fd,&sbuf); /* sniff at its size */
|
yuuji@0
|
602 close (fd);
|
yuuji@0
|
603 if ((sbuf.st_mode & S_IFMT) != S_IFREG)
|
yuuji@0
|
604 sprintf (err,"Can't open %.80s: not a selectable mailbox",
|
yuuji@0
|
605 stream->mailbox);
|
yuuji@0
|
606 else if (sbuf.st_size) /* bogus format if non-empty */
|
yuuji@0
|
607 sprintf (err,"Can't open %.80s (file %.80s): not in valid mailbox format",
|
yuuji@0
|
608 stream->mailbox,tmp);
|
yuuji@0
|
609 }
|
yuuji@0
|
610 if (err[0]) { /* if an error happened */
|
yuuji@0
|
611 MM_LOG (err,stream->silent ? WARN : ERROR);
|
yuuji@0
|
612 return NIL;
|
yuuji@0
|
613 }
|
yuuji@0
|
614 else if (!stream->silent) { /* only if silence not requested */
|
yuuji@0
|
615 mail_exists (stream,0); /* say there are 0 messages */
|
yuuji@0
|
616 mail_recent (stream,0); /* and certainly no recent ones! */
|
yuuji@0
|
617 stream->uid_validity = time (0);
|
yuuji@0
|
618 }
|
yuuji@0
|
619 stream->inbox = T; /* note that it's an INBOX */
|
yuuji@0
|
620 return stream; /* return success */
|
yuuji@0
|
621 }
|
yuuji@0
|
622
|
yuuji@0
|
623
|
yuuji@0
|
624 /* Dummy close
|
yuuji@0
|
625 * Accepts: MAIL stream
|
yuuji@0
|
626 * options
|
yuuji@0
|
627 */
|
yuuji@0
|
628
|
yuuji@0
|
629 void dummy_close (MAILSTREAM *stream,long options)
|
yuuji@0
|
630 {
|
yuuji@0
|
631 /* return silently */
|
yuuji@0
|
632 }
|
yuuji@0
|
633
|
yuuji@0
|
634 /* Dummy ping mailbox
|
yuuji@0
|
635 * Accepts: MAIL stream
|
yuuji@0
|
636 * Returns: T if stream alive, else NIL
|
yuuji@0
|
637 */
|
yuuji@0
|
638
|
yuuji@0
|
639 long dummy_ping (MAILSTREAM *stream)
|
yuuji@0
|
640 {
|
yuuji@0
|
641 MAILSTREAM *test;
|
yuuji@0
|
642 if (time (0) >= /* time to do another test? */
|
yuuji@0
|
643 ((time_t) (stream->gensym +
|
yuuji@0
|
644 (long) mail_parameters (NIL,GET_SNARFINTERVAL,NIL)))) {
|
yuuji@0
|
645 /* has mailbox format changed? */
|
yuuji@0
|
646 if ((test = mail_open (NIL,stream->mailbox,OP_PROTOTYPE)) &&
|
yuuji@0
|
647 (test->dtb != stream->dtb) &&
|
yuuji@0
|
648 (test = mail_open (NIL,stream->mailbox,NIL))) {
|
yuuji@0
|
649 /* preserve some resources */
|
yuuji@0
|
650 test->original_mailbox = stream->original_mailbox;
|
yuuji@0
|
651 stream->original_mailbox = NIL;
|
yuuji@0
|
652 test->sparep = stream->sparep;
|
yuuji@0
|
653 stream->sparep = NIL;
|
yuuji@0
|
654 test->sequence = stream->sequence;
|
yuuji@0
|
655 mail_close ((MAILSTREAM *) /* flush resources used by dummy stream */
|
yuuji@0
|
656 memcpy (fs_get (sizeof (MAILSTREAM)),stream,
|
yuuji@0
|
657 sizeof (MAILSTREAM)));
|
yuuji@0
|
658 /* swap the streams */
|
yuuji@0
|
659 memcpy (stream,test,sizeof (MAILSTREAM));
|
yuuji@0
|
660 fs_give ((void **) &test);/* flush test now that copied */
|
yuuji@0
|
661 /* make sure application knows */
|
yuuji@0
|
662 mail_exists (stream,stream->recent = stream->nmsgs);
|
yuuji@0
|
663 }
|
yuuji@0
|
664 /* still hasn't changed */
|
yuuji@0
|
665 else stream->gensym = time (0);
|
yuuji@0
|
666 }
|
yuuji@0
|
667 return T;
|
yuuji@0
|
668 }
|
yuuji@0
|
669
|
yuuji@0
|
670
|
yuuji@0
|
671 /* Dummy check mailbox
|
yuuji@0
|
672 * Accepts: MAIL stream
|
yuuji@0
|
673 * No-op for readonly files, since read/writer can expunge it from under us!
|
yuuji@0
|
674 */
|
yuuji@0
|
675
|
yuuji@0
|
676 void dummy_check (MAILSTREAM *stream)
|
yuuji@0
|
677 {
|
yuuji@0
|
678 dummy_ping (stream); /* invoke ping */
|
yuuji@0
|
679 }
|
yuuji@0
|
680
|
yuuji@0
|
681
|
yuuji@0
|
682 /* Dummy expunge mailbox
|
yuuji@0
|
683 * Accepts: MAIL stream
|
yuuji@0
|
684 * sequence to expunge if non-NIL
|
yuuji@0
|
685 * expunge options
|
yuuji@0
|
686 * Returns: T, always
|
yuuji@0
|
687 */
|
yuuji@0
|
688
|
yuuji@0
|
689 long dummy_expunge (MAILSTREAM *stream,char *sequence,long options)
|
yuuji@0
|
690 {
|
yuuji@0
|
691 return LONGT;
|
yuuji@0
|
692 }
|
yuuji@0
|
693
|
yuuji@0
|
694 /* Dummy copy message(s)
|
yuuji@0
|
695 * Accepts: MAIL stream
|
yuuji@0
|
696 * sequence
|
yuuji@0
|
697 * destination mailbox
|
yuuji@0
|
698 * options
|
yuuji@0
|
699 * Returns: T if copy successful, else NIL
|
yuuji@0
|
700 */
|
yuuji@0
|
701
|
yuuji@0
|
702 long dummy_copy (MAILSTREAM *stream,char *sequence,char *mailbox,long options)
|
yuuji@0
|
703 {
|
yuuji@0
|
704 if ((options & CP_UID) ? mail_uid_sequence (stream,sequence) :
|
yuuji@0
|
705 mail_sequence (stream,sequence)) fatal ("Impossible dummy_copy");
|
yuuji@0
|
706 return NIL;
|
yuuji@0
|
707 }
|
yuuji@0
|
708
|
yuuji@0
|
709
|
yuuji@0
|
710 /* Dummy append message string
|
yuuji@0
|
711 * Accepts: mail stream
|
yuuji@0
|
712 * destination mailbox
|
yuuji@0
|
713 * append callback function
|
yuuji@0
|
714 * data for callback
|
yuuji@0
|
715 * Returns: T on success, NIL on failure
|
yuuji@0
|
716 */
|
yuuji@0
|
717
|
yuuji@0
|
718 long dummy_append (MAILSTREAM *stream,char *mailbox,append_t af,void *data)
|
yuuji@0
|
719 {
|
yuuji@0
|
720 struct stat sbuf;
|
yuuji@0
|
721 int fd = -1;
|
yuuji@0
|
722 int e;
|
yuuji@0
|
723 char tmp[MAILTMPLEN];
|
yuuji@0
|
724 MAILSTREAM *ts = default_proto (T);
|
yuuji@0
|
725 /* append to INBOX? */
|
yuuji@0
|
726 if (!compare_cstring (mailbox,"INBOX")) {
|
yuuji@0
|
727 /* yes, if no empty proto try creating */
|
yuuji@0
|
728 if (!ts && !(*(ts = default_proto (NIL))->dtb->create) (ts,"INBOX"))
|
yuuji@0
|
729 ts = NIL;
|
yuuji@0
|
730 }
|
yuuji@0
|
731 else if (dummy_file (tmp,mailbox) && ((fd = open (tmp,O_RDONLY,NIL)) < 0)) {
|
yuuji@0
|
732 if ((e = errno) == ENOENT) /* failed, was it no such file? */
|
yuuji@0
|
733 MM_NOTIFY (stream,"[TRYCREATE] Must create mailbox before append",NIL);
|
yuuji@0
|
734 sprintf (tmp,"%.80s: %.80s",strerror (e),mailbox);
|
yuuji@0
|
735 MM_LOG (tmp,ERROR); /* pass up error */
|
yuuji@0
|
736 return NIL; /* always fails */
|
yuuji@0
|
737 }
|
yuuji@0
|
738 else if (fd >= 0) { /* found file? */
|
yuuji@0
|
739 fstat (fd,&sbuf); /* get its size */
|
yuuji@0
|
740 close (fd); /* toss out the fd */
|
yuuji@0
|
741 if (sbuf.st_size) ts = NIL; /* non-empty file? */
|
yuuji@0
|
742 }
|
yuuji@0
|
743 if (ts) return (*ts->dtb->append) (stream,mailbox,af,data);
|
yuuji@0
|
744 sprintf (tmp,"Indeterminate mailbox format: %.80s",mailbox);
|
yuuji@0
|
745 MM_LOG (tmp,ERROR);
|
yuuji@0
|
746 return NIL;
|
yuuji@0
|
747 }
|
yuuji@0
|
748
|
yuuji@0
|
749 /* Dummy mail generate file string
|
yuuji@0
|
750 * Accepts: temporary buffer to write into
|
yuuji@0
|
751 * mailbox name string
|
yuuji@0
|
752 * Returns: local file string or NIL if failure
|
yuuji@0
|
753 */
|
yuuji@0
|
754
|
yuuji@0
|
755 char *dummy_file (char *dst,char *name)
|
yuuji@0
|
756 {
|
yuuji@0
|
757 char *s = mailboxfile (dst,name);
|
yuuji@0
|
758 /* return our standard inbox */
|
yuuji@0
|
759 return (s && !*s) ? strcpy (dst,sysinbox ()) : s;
|
yuuji@0
|
760 }
|
yuuji@0
|
761
|
yuuji@0
|
762
|
yuuji@0
|
763 /* Dummy canonicalize name
|
yuuji@0
|
764 * Accepts: buffer to write name
|
yuuji@0
|
765 * reference
|
yuuji@0
|
766 * pattern
|
yuuji@0
|
767 * Returns: T if success, NIL if failure
|
yuuji@0
|
768 */
|
yuuji@0
|
769
|
yuuji@0
|
770 long dummy_canonicalize (char *tmp,char *ref,char *pat)
|
yuuji@0
|
771 {
|
yuuji@0
|
772 unsigned long i;
|
yuuji@0
|
773 char *s;
|
yuuji@0
|
774 if (ref) { /* preliminary reference check */
|
yuuji@0
|
775 if (*ref == '{') return NIL;/* remote reference not allowed */
|
yuuji@0
|
776 else if (!*ref) ref = NIL; /* treat empty reference as no reference */
|
yuuji@0
|
777 }
|
yuuji@0
|
778 switch (*pat) {
|
yuuji@0
|
779 case '#': /* namespace name */
|
yuuji@0
|
780 if (mailboxfile (tmp,pat)) strcpy (tmp,pat);
|
yuuji@0
|
781 else return NIL; /* unknown namespace */
|
yuuji@0
|
782 break;
|
yuuji@0
|
783 case '{': /* remote names not allowed */
|
yuuji@0
|
784 return NIL;
|
yuuji@0
|
785 case '/': /* rooted name */
|
yuuji@0
|
786 case '~': /* home directory name */
|
yuuji@0
|
787 if (!ref || (*ref != '#')) {/* non-namespace reference? */
|
yuuji@0
|
788 strcpy (tmp,pat); /* yes, ignore */
|
yuuji@0
|
789 break;
|
yuuji@0
|
790 }
|
yuuji@0
|
791 /* fall through */
|
yuuji@0
|
792 default: /* apply reference for all other names */
|
yuuji@0
|
793 if (!ref) strcpy (tmp,pat); /* just copy if no namespace */
|
yuuji@0
|
794 else if ((*ref != '#') || mailboxfile (tmp,ref)) {
|
yuuji@0
|
795 /* wants root of name? */
|
yuuji@0
|
796 if (*pat == '/') strcpy (strchr (strcpy (tmp,ref),'/'),pat);
|
yuuji@0
|
797 /* otherwise just append */
|
yuuji@0
|
798 else sprintf (tmp,"%s%s",ref,pat);
|
yuuji@0
|
799 }
|
yuuji@0
|
800 else return NIL; /* unknown namespace */
|
yuuji@0
|
801 }
|
yuuji@0
|
802 /* count wildcards */
|
yuuji@0
|
803 for (i = 0, s = tmp; *s; *s++) if ((*s == '*') || (*s == '%')) ++i;
|
yuuji@0
|
804 if (i > MAXWILDCARDS) { /* ridiculous wildcarding? */
|
yuuji@0
|
805 MM_LOG ("Excessive wildcards in LIST/LSUB",ERROR);
|
yuuji@0
|
806 return NIL;
|
yuuji@0
|
807 }
|
yuuji@0
|
808 return T;
|
yuuji@0
|
809 }
|