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0
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1 /* movemail foo bar -- move file foo to file bar,
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2 locking file foo the way /bin/mail respects.
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48
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3 Copyright (C) 1986, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
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0
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4
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5 This file is part of GNU Emacs.
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6
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7 GNU Emacs is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 GNU Emacs is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GNU Emacs; see the file COPYING. If not, write to
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48
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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0
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Important notice: defining MAIL_USE_FLOCK or MAIL_USE_LOCKF *will
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23 cause loss of mail* if you do it on a system that does not normally
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24 use flock as its way of interlocking access to inbox files. The
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25 setting of MAIL_USE_FLOCK and MAIL_USE_LOCKF *must agree* with the
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26 system's own conventions. It is not a choice that is up to you.
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27
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28 So, if your system uses lock files rather than flock, then the only way
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29 you can get proper operation is to enable movemail to write lockfiles there.
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30 This means you must either give that directory access modes
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31 that permit everyone to write lockfiles in it, or you must make movemail
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32 a setuid or setgid program. */
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33
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34 /*
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35 * Modified January, 1986 by Michael R. Gretzinger (Project Athena)
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36 *
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48
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37 * Added POP (Post Office Protocol) service. When compiled -DMAIL_USE_POP
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0
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38 * movemail will accept input filename arguments of the form
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39 * "po:username". This will cause movemail to open a connection to
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40 * a pop server running on $MAILHOST (environment variable). Movemail
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41 * must be setuid to root in order to work with POP.
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42 *
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43 * New module: popmail.c
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44 * Modified routines:
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45 * main - added code within #ifdef MAIL_USE_POP; added setuid (getuid ())
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46 * after POP code.
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47 * New routines in movemail.c:
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48 * get_errmsg - return pointer to system error message
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49 *
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48
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50 * Modified August, 1993 by Jonathan Kamens (OpenVision Technologies)
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51 *
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52 * Move all of the POP code into a separate file, "pop.c".
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53 * Use strerror instead of get_errmsg.
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54 *
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0
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55 */
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56
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57 #define NO_SHORTNAMES /* Tell config not to load remap.h */
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58 #include <../src/config.h>
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59 #include <sys/types.h>
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60 #include <sys/stat.h>
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61 #include <sys/file.h>
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48
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62 #include <stdio.h>
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0
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63 #include <errno.h>
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54
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64 #include "../src/syswait.h"
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65 #include "../src/systime.h"
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48
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66 #include <stdlib.h>
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67 #include <string.h>
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68 #ifdef MAIL_USE_POP
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69 #include "pop.h"
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70 #endif
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0
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71
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54
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72 #ifndef HAVE_STRERROR
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73 static char * strerror (int errnum);
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74 #endif /* HAVE_STRERROR */
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75
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0
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76 #ifdef MSDOS
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77 #undef access
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78 #endif /* MSDOS */
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79
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48
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80 #ifndef DIRECTORY_SEP
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81 #define DIRECTORY_SEP '/'
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82 #endif
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83 #ifndef IS_DIRECTORY_SEP
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84 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
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85 #endif
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86
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87 #ifdef WINDOWSNT
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88 #undef access
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89 #undef unlink
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90 #define fork() 0
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91 #define sys_wait(var) (*(var) = 0)
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92 /* Unfortunately, Samba doesn't seem to properly lock Unix files even
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93 though the locking call succeeds (and indeed blocks local access from
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94 other NT programs). If you have direct file access using an NFS
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95 client or something other than Samba, the locking call might work
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96 properly - make sure it does before you enable this! */
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97 #define DISABLE_DIRECT_ACCESS
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98 #endif /* WINDOWSNT */
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99
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54
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100 #if defined (HAVE_UNISTD_H) || defined (USG)
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0
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101 #include <unistd.h>
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54
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102 #endif /* unistd.h */
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0
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103 #ifndef F_OK
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104 #define F_OK 0
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105 #define X_OK 1
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106 #define W_OK 2
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107 #define R_OK 4
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54
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108 #endif /* No F_OK */
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0
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109
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54
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110 #if defined (HAVE_FCNTL_H) || defined (USG)
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111 #include <fcntl.h>
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112 #endif /* fcntl.h */
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0
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113
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48
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114 #if defined (XENIX) || defined (WINDOWSNT)
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0
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115 #include <sys/locking.h>
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116 #endif
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117
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118 #ifdef MAIL_USE_LOCKF
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119 #define MAIL_USE_SYSTEM_LOCK
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120 #endif
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121
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122 #ifdef MAIL_USE_FLOCK
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123 #define MAIL_USE_SYSTEM_LOCK
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124 #endif
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125
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126 #ifdef MAIL_USE_MMDF
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127 extern int lk_open (), lk_close ();
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128 #endif
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129
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130 /* Cancel substitutions made by config.h for Emacs. */
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131 #undef open
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132 #undef read
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133 #undef write
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134 #undef close
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135
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54
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136 static void fatal (char *, char*);
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137 static void error (char *, char *, char *);
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138 static void pfatal_with_name (char *);
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139 static void pfatal_and_delete (char *);
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140 static char *concat (char *, char *, char *);
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141 static long *xmalloc (unsigned int);
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142 static int popmail (char *, char *, char *);
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143 #ifdef MAIL_USE_POP
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144 static int pop_retr (popserver server, int msgno, int (*action)(), int arg);
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0
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145 #endif
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54
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146 static int mbx_write (char *, FILE *);
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147 static int mbx_delimit_begin (FILE *);
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148 static int mbx_delimit_end (FILE *);
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0
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149
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150 /* Nonzero means this is name of a lock file to delete on fatal error. */
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151 char *delete_lockname;
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152
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48
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153 int
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54
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154 main (int argc, char *argv[])
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0
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155 {
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156 char *inname, *outname;
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157 int indesc, outdesc;
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158 int nread;
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54
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159 int status;
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0
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160
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161 #ifndef MAIL_USE_SYSTEM_LOCK
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162 struct stat st;
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163 long now;
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164 int tem;
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165 char *lockname, *p;
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166 char *tempname;
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167 int desc;
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168 #endif /* not MAIL_USE_SYSTEM_LOCK */
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169
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170 delete_lockname = 0;
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171
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172 if (argc < 3)
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48
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173 {
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174 fprintf (stderr, "Usage: movemail inbox destfile [POP-password]\n");
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175 exit(1);
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176 }
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0
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177
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178 inname = argv[1];
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179 outname = argv[2];
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180
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181 #ifdef MAIL_USE_MMDF
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182 mmdf_init (argv[0]);
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183 #endif
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184
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48
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185 if (*outname == 0)
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186 fatal ("Destination file name is empty", 0);
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187
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0
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188 /* Check access to output file. */
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189 if (access (outname, F_OK) == 0 && access (outname, W_OK) != 0)
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190 pfatal_with_name (outname);
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191
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48
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192 /* Also check that outname's directory is writable to the real uid. */
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0
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193 {
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194 char *buf = (char *) xmalloc (strlen (outname) + 1);
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54
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195 char *cp;
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0
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196 strcpy (buf, outname);
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54
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197 cp = buf + strlen (buf);
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198 while (cp > buf && !IS_DIRECTORY_SEP (cp[-1]))
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199 *--cp = 0;
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200 if (cp == buf)
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201 *cp++ = '.';
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0
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202 if (access (buf, W_OK) != 0)
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203 pfatal_with_name (buf);
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204 free (buf);
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205 }
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206
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207 #ifdef MAIL_USE_POP
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48
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208 if (!strncmp (inname, "po:", 3))
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0
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209 {
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48
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210 int status;
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0
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211
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48
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212 status = popmail (inname + 3, outname, argc > 3 ? argv[3] : NULL);
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0
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213 exit (status);
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214 }
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215
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216 setuid (getuid ());
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217 #endif /* MAIL_USE_POP */
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218
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48
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219 #ifndef DISABLE_DIRECT_ACCESS
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220
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0
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221 /* Check access to input file. */
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222 if (access (inname, R_OK | W_OK) != 0)
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223 pfatal_with_name (inname);
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224
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225 #ifndef MAIL_USE_MMDF
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226 #ifndef MAIL_USE_SYSTEM_LOCK
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48
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227 /* Use a lock file named after our first argument with .lock appended:
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0
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228 If it exists, the mail file is locked. */
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229 /* Note: this locking mechanism is *required* by the mailer
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230 (on systems which use it) to prevent loss of mail.
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231
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232 On systems that use a lock file, extracting the mail without locking
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233 WILL occasionally cause loss of mail due to timing errors!
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234
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235 So, if creation of the lock file fails
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48
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236 due to access permission on the mail spool directory,
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0
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237 you simply MUST change the permission
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238 and/or make movemail a setgid program
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239 so it can create lock files properly.
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240
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241 You might also wish to verify that your system is one
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242 which uses lock files for this purpose. Some systems use other methods.
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243
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244 If your system uses the `flock' system call for mail locking,
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245 define MAIL_USE_SYSTEM_LOCK in config.h or the s-*.h file
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246 and recompile movemail. If the s- file for your system
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247 should define MAIL_USE_SYSTEM_LOCK but does not, send a bug report
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248 to bug-gnu-emacs@prep.ai.mit.edu so we can fix it. */
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249
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250 lockname = concat (inname, ".lock", "");
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251 tempname = (char *) xmalloc (strlen (inname) + strlen ("EXXXXXX") + 1);
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252 strcpy (tempname, inname);
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253 p = tempname + strlen (tempname);
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48
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254 while (p != tempname && !IS_DIRECTORY_SEP (p[-1]))
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0
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255 p--;
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256 *p = 0;
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257 strcpy (p, "EXXXXXX");
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258 mktemp (tempname);
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259 unlink (tempname);
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260
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261 while (1)
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262 {
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263 /* Create the lock file, but not under the lock file name. */
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264 /* Give up if cannot do that. */
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265 desc = open (tempname, O_WRONLY | O_CREAT | O_EXCL, 0666);
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266 if (desc < 0)
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48
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267 {
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268 char *message = (char *) xmalloc (strlen (tempname) + 50);
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269 sprintf (message, "%s--see source file lib-src/movemail.c",
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270 tempname);
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271 pfatal_with_name (message);
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272 }
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0
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273 close (desc);
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274
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275 tem = link (tempname, lockname);
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276 unlink (tempname);
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277 if (tem >= 0)
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278 break;
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279 sleep (1);
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280
|
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48
|
281 /* If lock file is five minutes old, unlock it.
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282 Five minutes should be good enough to cope with crashes
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283 and wedgitude, and long enough to avoid being fooled
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284 by time differences between machines. */
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0
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285 if (stat (lockname, &st) >= 0)
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|
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286 {
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287 now = time (0);
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48
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288 if (st.st_ctime < now - 300)
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289 unlink (lockname);
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0
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290 }
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291 }
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292
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293 delete_lockname = lockname;
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294 #endif /* not MAIL_USE_SYSTEM_LOCK */
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295 #endif /* not MAIL_USE_MMDF */
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296
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|
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297 if (fork () == 0)
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|
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298 {
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299 setuid (getuid ());
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300
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301 #ifndef MAIL_USE_MMDF
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302 #ifdef MAIL_USE_SYSTEM_LOCK
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303 indesc = open (inname, O_RDWR);
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304 #else /* if not MAIL_USE_SYSTEM_LOCK */
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305 indesc = open (inname, O_RDONLY);
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306 #endif /* not MAIL_USE_SYSTEM_LOCK */
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307 #else /* MAIL_USE_MMDF */
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308 indesc = lk_open (inname, O_RDONLY, 0, 0, 10);
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309 #endif /* MAIL_USE_MMDF */
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|
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310
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|
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311 if (indesc < 0)
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312 pfatal_with_name (inname);
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313
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314 #if defined (BSD) || defined (XENIX)
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315 /* In case movemail is setuid to root, make sure the user can
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316 read the output file. */
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317 /* This is desirable for all systems
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318 but I don't want to assume all have the umask system call */
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319 umask (umask (0) & 0333);
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320 #endif /* BSD or Xenix */
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321 outdesc = open (outname, O_WRONLY | O_CREAT | O_EXCL, 0666);
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322 if (outdesc < 0)
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323 pfatal_with_name (outname);
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324 #ifdef MAIL_USE_SYSTEM_LOCK
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325 #ifdef MAIL_USE_LOCKF
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|
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326 if (lockf (indesc, F_LOCK, 0) < 0) pfatal_with_name (inname);
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327 #else /* not MAIL_USE_LOCKF */
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328 #ifdef XENIX
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|
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329 if (locking (indesc, LK_RLCK, 0L) < 0) pfatal_with_name (inname);
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330 #else
|
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48
|
331 #ifdef WINDOWSNT
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|
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332 if (locking (indesc, LK_RLCK, -1L) < 0) pfatal_with_name (inname);
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|
333 #else
|
|
0
|
334 if (flock (indesc, LOCK_EX) < 0) pfatal_with_name (inname);
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|
|
335 #endif
|
|
48
|
336 #endif
|
|
0
|
337 #endif /* not MAIL_USE_LOCKF */
|
|
|
338 #endif /* MAIL_USE_SYSTEM_LOCK */
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|
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339
|
|
|
340 {
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|
|
341 char buf[1024];
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|
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342
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|
|
343 while (1)
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|
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344 {
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|
|
345 nread = read (indesc, buf, sizeof buf);
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|
|
346 if (nread != write (outdesc, buf, nread))
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|
|
347 {
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|
|
348 int saved_errno = errno;
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|
|
349 unlink (outname);
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|
|
350 errno = saved_errno;
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|
|
351 pfatal_with_name (outname);
|
|
|
352 }
|
|
|
353 if (nread < sizeof buf)
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|
|
354 break;
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|
|
355 }
|
|
|
356 }
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|
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357
|
|
|
358 #ifdef BSD
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|
|
359 if (fsync (outdesc) < 0)
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|
|
360 pfatal_and_delete (outname);
|
|
|
361 #endif
|
|
|
362
|
|
|
363 /* Check to make sure no errors before we zap the inbox. */
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|
|
364 if (close (outdesc) != 0)
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|
|
365 pfatal_and_delete (outname);
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|
|
366
|
|
|
367 #ifdef MAIL_USE_SYSTEM_LOCK
|
|
48
|
368 #if defined (STRIDE) || defined (XENIX) || defined (WINDOWSNT)
|
|
0
|
369 /* Stride, xenix have file locking, but no ftruncate. This mess will do. */
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|
|
370 close (open (inname, O_CREAT | O_TRUNC | O_RDWR, 0666));
|
|
|
371 #else
|
|
|
372 ftruncate (indesc, 0L);
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|
|
373 #endif /* STRIDE or XENIX */
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|
|
374 #endif /* MAIL_USE_SYSTEM_LOCK */
|
|
|
375
|
|
|
376 #ifdef MAIL_USE_MMDF
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|
|
377 lk_close (indesc, 0, 0, 0);
|
|
|
378 #else
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|
|
379 close (indesc);
|
|
|
380 #endif
|
|
|
381
|
|
|
382 #ifndef MAIL_USE_SYSTEM_LOCK
|
|
|
383 /* Delete the input file; if we can't, at least get rid of its
|
|
|
384 contents. */
|
|
|
385 #ifdef MAIL_UNLINK_SPOOL
|
|
|
386 /* This is generally bad to do, because it destroys the permissions
|
|
|
387 that were set on the file. Better to just empty the file. */
|
|
|
388 if (unlink (inname) < 0 && errno != ENOENT)
|
|
|
389 #endif /* MAIL_UNLINK_SPOOL */
|
|
|
390 creat (inname, 0600);
|
|
|
391 #endif /* not MAIL_USE_SYSTEM_LOCK */
|
|
|
392
|
|
|
393 exit (0);
|
|
|
394 }
|
|
|
395
|
|
|
396 wait (&status);
|
|
|
397 if (!WIFEXITED (status))
|
|
|
398 exit (1);
|
|
54
|
399 else if (WEXITSTATUS (status) != 0)
|
|
|
400 exit (WEXITSTATUS (status));
|
|
0
|
401
|
|
|
402 #if !defined (MAIL_USE_MMDF) && !defined (MAIL_USE_SYSTEM_LOCK)
|
|
|
403 unlink (lockname);
|
|
|
404 #endif /* not MAIL_USE_MMDF and not MAIL_USE_SYSTEM_LOCK */
|
|
48
|
405
|
|
|
406 #endif /* ! DISABLE_DIRECT_ACCESS */
|
|
|
407
|
|
|
408 return 0;
|
|
0
|
409 }
|
|
|
410
|
|
|
411 /* Print error message and exit. */
|
|
|
412
|
|
54
|
413 static void
|
|
|
414 fatal (char *s1, char *s2)
|
|
0
|
415 {
|
|
|
416 if (delete_lockname)
|
|
|
417 unlink (delete_lockname);
|
|
54
|
418 error (s1, s2, NULL);
|
|
0
|
419 exit (1);
|
|
|
420 }
|
|
|
421
|
|
|
422 /* Print error message. `s1' is printf control string, `s2' is arg for it. */
|
|
|
423
|
|
54
|
424 static void
|
|
|
425 error (char *s1, char *s2, char *s3)
|
|
0
|
426 {
|
|
48
|
427 fprintf (stderr, "movemail: ");
|
|
|
428 fprintf (stderr, s1, s2, s3);
|
|
|
429 fprintf (stderr, "\n");
|
|
0
|
430 }
|
|
|
431
|
|
54
|
432 static void
|
|
|
433 pfatal_with_name (char *name)
|
|
0
|
434 {
|
|
48
|
435 char *s = concat ("", strerror (errno), " for %s");
|
|
0
|
436 fatal (s, name);
|
|
|
437 }
|
|
|
438
|
|
54
|
439 static void
|
|
|
440 pfatal_and_delete (char *name)
|
|
0
|
441 {
|
|
48
|
442 char *s = concat ("", strerror (errno), " for %s");
|
|
0
|
443 unlink (name);
|
|
|
444 fatal (s, name);
|
|
|
445 }
|
|
|
446
|
|
|
447 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
|
|
|
448
|
|
54
|
449 static char *
|
|
|
450 concat (char *s1, char *s2, char *s3)
|
|
0
|
451 {
|
|
|
452 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
|
|
|
453 char *result = (char *) xmalloc (len1 + len2 + len3 + 1);
|
|
|
454
|
|
|
455 strcpy (result, s1);
|
|
|
456 strcpy (result + len1, s2);
|
|
|
457 strcpy (result + len1 + len2, s3);
|
|
|
458 *(result + len1 + len2 + len3) = 0;
|
|
|
459
|
|
|
460 return result;
|
|
|
461 }
|
|
|
462
|
|
|
463 /* Like malloc but get fatal error if memory is exhausted. */
|
|
|
464
|
|
54
|
465 static long *
|
|
|
466 xmalloc (unsigned int size)
|
|
0
|
467 {
|
|
48
|
468 long *result = (long *) malloc (size);
|
|
0
|
469 if (!result)
|
|
48
|
470 fatal ("virtual memory exhausted", 0);
|
|
0
|
471 return result;
|
|
|
472 }
|
|
|
473
|
|
|
474 /* This is the guts of the interface to the Post Office Protocol. */
|
|
|
475
|
|
|
476 #ifdef MAIL_USE_POP
|
|
|
477
|
|
48
|
478 #ifndef WINDOWSNT
|
|
0
|
479 #include <sys/socket.h>
|
|
|
480 #include <netinet/in.h>
|
|
|
481 #include <netdb.h>
|
|
48
|
482 #else
|
|
|
483 #undef _WINSOCKAPI_
|
|
|
484 #include <winsock.h>
|
|
|
485 #endif
|
|
0
|
486 #include <stdio.h>
|
|
|
487 #include <pwd.h>
|
|
|
488
|
|
|
489 #define NOTOK (-1)
|
|
|
490 #define OK 0
|
|
|
491 #define DONE 1
|
|
|
492
|
|
|
493 char *progname;
|
|
|
494 FILE *sfi;
|
|
|
495 FILE *sfo;
|
|
48
|
496 char ibuffer[BUFSIZ];
|
|
|
497 char obuffer[BUFSIZ];
|
|
0
|
498 char Errmsg[80];
|
|
|
499
|
|
54
|
500 static int
|
|
|
501 popmail (char *user, char *outfile, char *password)
|
|
0
|
502 {
|
|
|
503 int nmsgs, nbytes;
|
|
|
504 register int i;
|
|
|
505 int mbfi;
|
|
|
506 FILE *mbf;
|
|
48
|
507 char *getenv ();
|
|
|
508 int mbx_write ();
|
|
|
509 popserver server;
|
|
|
510 extern char *strerror ();
|
|
0
|
511
|
|
48
|
512 server = pop_open (0, user, password, POP_NO_GETPASS);
|
|
|
513 if (! server)
|
|
0
|
514 {
|
|
54
|
515 error (pop_error, NULL, NULL);
|
|
48
|
516 return (1);
|
|
0
|
517 }
|
|
|
518
|
|
48
|
519 if (pop_stat (server, &nmsgs, &nbytes))
|
|
0
|
520 {
|
|
54
|
521 error (pop_error, NULL, NULL);
|
|
48
|
522 return (1);
|
|
0
|
523 }
|
|
|
524
|
|
|
525 if (!nmsgs)
|
|
48
|
526 {
|
|
|
527 pop_close (server);
|
|
|
528 return (0);
|
|
|
529 }
|
|
0
|
530
|
|
|
531 mbfi = open (outfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
|
|
|
532 if (mbfi < 0)
|
|
48
|
533 {
|
|
|
534 pop_close (server);
|
|
|
535 error ("Error in open: %s, %s", strerror (errno), outfile);
|
|
|
536 return (1);
|
|
|
537 }
|
|
0
|
538 fchown (mbfi, getuid (), -1);
|
|
|
539
|
|
48
|
540 if ((mbf = fdopen (mbfi, "wb")) == NULL)
|
|
0
|
541 {
|
|
48
|
542 pop_close (server);
|
|
54
|
543 error ("Error in fdopen: %s", strerror (errno), NULL);
|
|
48
|
544 close (mbfi);
|
|
|
545 unlink (outfile);
|
|
|
546 return (1);
|
|
0
|
547 }
|
|
|
548
|
|
48
|
549 for (i = 1; i <= nmsgs; i++)
|
|
0
|
550 {
|
|
|
551 mbx_delimit_begin (mbf);
|
|
48
|
552 if (pop_retr (server, i, mbx_write, mbf) != OK)
|
|
|
553 {
|
|
54
|
554 error (Errmsg, NULL, NULL);
|
|
48
|
555 close (mbfi);
|
|
|
556 return (1);
|
|
|
557 }
|
|
0
|
558 mbx_delimit_end (mbf);
|
|
|
559 fflush (mbf);
|
|
48
|
560 if (ferror (mbf))
|
|
|
561 {
|
|
54
|
562 error ("Error in fflush: %s", strerror (errno), NULL);
|
|
48
|
563 pop_close (server);
|
|
|
564 close (mbfi);
|
|
|
565 return (1);
|
|
|
566 }
|
|
0
|
567 }
|
|
|
568
|
|
48
|
569 /* On AFS, a call to write only modifies the file in the local
|
|
|
570 * workstation's AFS cache. The changes are not written to the server
|
|
|
571 * until a call to fsync or close is made. Users with AFS home
|
|
|
572 * directories have lost mail when over quota because these checks were
|
|
|
573 * not made in previous versions of movemail. */
|
|
|
574
|
|
|
575 #ifdef BSD
|
|
0
|
576 if (fsync (mbfi) < 0)
|
|
|
577 {
|
|
54
|
578 error ("Error in fsync: %s", strerror (errno), NULL);
|
|
48
|
579 return (1);
|
|
0
|
580 }
|
|
48
|
581 #endif
|
|
0
|
582
|
|
|
583 if (close (mbfi) == -1)
|
|
|
584 {
|
|
54
|
585 error ("Error in close: %s", strerror (errno), NULL);
|
|
48
|
586 return (1);
|
|
0
|
587 }
|
|
|
588
|
|
48
|
589 for (i = 1; i <= nmsgs; i++)
|
|
0
|
590 {
|
|
48
|
591 if (pop_delete (server, i))
|
|
|
592 {
|
|
54
|
593 error (pop_error, NULL, NULL);
|
|
48
|
594 pop_close (server);
|
|
|
595 return (1);
|
|
|
596 }
|
|
0
|
597 }
|
|
|
598
|
|
48
|
599 if (pop_quit (server))
|
|
|
600 {
|
|
54
|
601 error (pop_error, NULL, NULL);
|
|
48
|
602 return (1);
|
|
|
603 }
|
|
|
604
|
|
0
|
605 return (0);
|
|
|
606 }
|
|
|
607
|
|
54
|
608 static int
|
|
|
609 pop_retr (popserver server, int msgno, int (*action)(), int arg)
|
|
0
|
610 {
|
|
48
|
611 char *line;
|
|
|
612 int ret;
|
|
0
|
613
|
|
48
|
614 if (pop_retrieve_first (server, msgno, &line))
|
|
0
|
615 {
|
|
48
|
616 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
617 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
|
618 return (NOTOK);
|
|
0
|
619 }
|
|
|
620
|
|
48
|
621 while (! (ret = pop_retrieve_next (server, &line)))
|
|
0
|
622 {
|
|
48
|
623 if (! line)
|
|
|
624 break;
|
|
0
|
625
|
|
48
|
626 if ((*action)(line, arg) != OK)
|
|
|
627 {
|
|
|
628 strcpy (Errmsg, strerror (errno));
|
|
|
629 pop_close (server);
|
|
|
630 return (NOTOK);
|
|
|
631 }
|
|
0
|
632 }
|
|
|
633
|
|
48
|
634 if (ret)
|
|
0
|
635 {
|
|
48
|
636 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
637 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
|
638 return (NOTOK);
|
|
0
|
639 }
|
|
48
|
640
|
|
|
641 return (OK);
|
|
0
|
642 }
|
|
|
643
|
|
48
|
644 /* Do this as a macro instead of using strcmp to save on execution time. */
|
|
|
645 #define IS_FROM_LINE(a) ((a[0] == 'F') \
|
|
|
646 && (a[1] == 'r') \
|
|
|
647 && (a[2] == 'o') \
|
|
|
648 && (a[3] == 'm') \
|
|
|
649 && (a[4] == ' '))
|
|
0
|
650
|
|
54
|
651 static int
|
|
|
652 mbx_write (char *line, FILE *mbf)
|
|
0
|
653 {
|
|
48
|
654 if (IS_FROM_LINE (line))
|
|
|
655 {
|
|
|
656 if (fputc ('>', mbf) == EOF)
|
|
|
657 return (NOTOK);
|
|
|
658 }
|
|
|
659 if (fputs (line, mbf) == EOF)
|
|
|
660 return (NOTOK);
|
|
|
661 if (fputc (0x0a, mbf) == EOF)
|
|
|
662 return (NOTOK);
|
|
|
663 return (OK);
|
|
0
|
664 }
|
|
|
665
|
|
54
|
666 static int
|
|
|
667 mbx_delimit_begin (FILE *mbf)
|
|
0
|
668 {
|
|
48
|
669 if (fputs ("\f\n0, unseen,,\n", mbf) == EOF)
|
|
|
670 return (NOTOK);
|
|
|
671 return (OK);
|
|
0
|
672 }
|
|
|
673
|
|
54
|
674 static int
|
|
|
675 mbx_delimit_end (FILE *mbf)
|
|
0
|
676 {
|
|
48
|
677 if (putc ('\037', mbf) == EOF)
|
|
|
678 return (NOTOK);
|
|
|
679 return (OK);
|
|
0
|
680 }
|
|
|
681
|
|
|
682 #endif /* MAIL_USE_POP */
|
|
|
683
|
|
|
684 #ifndef HAVE_STRERROR
|
|
54
|
685 static char *
|
|
|
686 strerror (int errnum)
|
|
0
|
687 {
|
|
|
688 extern char *sys_errlist[];
|
|
|
689 extern int sys_nerr;
|
|
|
690
|
|
|
691 if (errnum >= 0 && errnum < sys_nerr)
|
|
|
692 return sys_errlist[errnum];
|
|
|
693 return (char *) "Unknown error";
|
|
|
694 }
|
|
|
695
|
|
|
696 #endif /* ! HAVE_STRERROR */
|
