Mercurial > masqmail

annotate src/log.c @ 91:3e7136221104

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correct masqmail path in rmail script; remove docs on uninstall on install the correct path to the masqmail executable gets inserted into the rmail script now. now documentation, examples, and the templates are removed on uninstall. Empty directories are the only thing that may remain if one installs masqmail into an unusual path.
author meillo@marmaro.de
date Mon, 21 Jun 2010 09:40:16 +0200
parents f671821d8222
children e507c854a63e
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1 /* MasqMail
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2 Copyright (C) 1999-2001 Oliver Kurth
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3
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4 This program is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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6 the Free Software Foundation; either version 2 of the License, or
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, write to the Free Software
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16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 */
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18
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19 #include <sysexits.h>
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20
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21 #include "masqmail.h"
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22
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23 static char *_sysexit_strings[] = {
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24 "command line usage error",
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25 "data format error",
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26 "cannot open input",
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27 "addressee unknown",
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28 "host name unknown",
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29 "service unavailable",
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30 "internal software error",
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31 "system error (e.g., can't fork)",
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32 "critical OS file missing",
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33 "can't create (user) output file",
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34 "input/output error",
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35 "temp failure; user is invited to retry",
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36 "remote error in protocol",
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37 "permission denied",
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38 "configuration error"
0
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39 };
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40
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41 gchar*
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42 ext_strerror(int err)
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43 {
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44 if (err < 1024)
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45 return strerror(err);
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46 else if (err > 1024 + EX__BASE
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47 && (err - 1024 - EX__BASE < sizeof(_sysexit_strings) / sizeof(_sysexit_strings[0])))
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48 return _sysexit_strings[err - 1024 - EX__BASE];
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49
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50 return "unknown error";
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51 }
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52
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53 static FILE *logfile = NULL;
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54 static FILE *debugfile = NULL;
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55
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56 gboolean
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57 logopen()
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58 {
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59 gchar *filename;
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60 mode_t saved_mode = umask(066);
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61
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62 if (conf.use_syslog) {
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63 openlog(PACKAGE, LOG_PID, LOG_MAIL);
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64 } else {
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65 uid_t saved_uid;
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66 gid_t saved_gid;
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67
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68 saved_gid = setegid(conf.mail_gid);
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69 saved_uid = seteuid(conf.mail_uid);
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70
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71 filename = g_strdup_printf("%s/masqmail.log", conf.log_dir);
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72 logfile = fopen(filename, "a");
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73 if (!logfile) {
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74 fprintf(stderr, "could not open log '%s': %s\n", filename, strerror(errno));
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75 return FALSE;
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76 }
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77 g_free(filename);
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78
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79 seteuid(saved_uid);
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80 setegid(saved_gid);
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81 }
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82
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83 #ifdef ENABLE_DEBUG
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84 if (conf.debug_level > 0) {
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85 filename = g_strdup_printf("%s/debug.log", conf.log_dir);
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86 debugfile = fopen(filename, "a");
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87 if (!debugfile) {
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88 fprintf(stderr, "could not open debug log '%s'\n", filename);
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89 return FALSE;
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90 }
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91 g_free(filename);
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92 }
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93 #endif
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94 umask(saved_mode);
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95 return TRUE;
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96 }
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97
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98 void
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99 logclose()
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100 {
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101 if (conf.use_syslog)
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102 closelog();
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103 else if (logfile)
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104 fclose(logfile);
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105 if (debugfile)
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106 fclose(debugfile);
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107 }
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108
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109 void
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110 vlogwrite(int pri, const char *fmt, va_list args)
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111 {
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112 if ((conf.do_verbose && (pri & LOG_VERBOSE)) || (pri == LOG_ALERT) || (pri == LOG_WARNING)) {
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113 va_list args_copy;
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114 va_copy(args_copy, args);
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115 vfprintf(stdout, fmt, args_copy);
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116 va_end(args_copy);
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117 fflush(stdout); /* is this necessary? */
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118 }
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119
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120 pri &= ~LOG_VERBOSE;
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121 if (pri) {
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122 if (conf.use_syslog)
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123 vsyslog(pri, fmt, args);
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124 else {
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125 if (pri <= conf.log_max_pri) {
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126 FILE *file = logfile ? logfile : stderr;
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127 time_t now = time(NULL);
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128 struct tm *t = localtime(&now);
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129 gchar buf[24];
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130 uid_t saved_uid;
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131 gid_t saved_gid;
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132
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133 saved_gid = setegid(conf.mail_gid);
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134 saved_uid = seteuid(conf.mail_uid);
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135
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136 strftime(buf, 24, "%Y-%m-%d %H:%M:%S", t);
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137 fprintf(file, "%s [%d] ", buf, getpid());
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138
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139 vfprintf(file, fmt, args);
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140 fflush(file);
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141
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142 seteuid(saved_uid);
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143 setegid(saved_gid);
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144 }
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145 }
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146 }
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147 }
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148
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149 #ifdef ENABLE_DEBUG
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150 void
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151 vdebugwrite(int pri, const char *fmt, va_list args)
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152 {
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153 time_t now = time(NULL);
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154 struct tm *t = localtime(&now);
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155 gchar buf[24];
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156 strftime(buf, 24, "%Y-%m-%d %H:%M:%S", t);
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157
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158 if (debugfile) {
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159 fprintf(debugfile, "%s [%d] ", buf, getpid());
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160 vfprintf(debugfile, fmt, args);
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161 fflush(debugfile);
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162 } else {
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163 fprintf(stderr, "no debug file, msg was:\n");
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164 vfprintf(stderr, fmt, args);
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165 }
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166 }
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167 #endif
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168
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169 void
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170 logwrite(int pri, const char *fmt, ...)
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171 {
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172 va_list args, args_copy;
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173 int saved_errno = errno; /* somewhere this is changed to EBADF */
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174
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175 va_start(args, fmt);
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176 #ifdef ENABLE_DEBUG
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177 va_copy(args_copy, args);
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178 #endif
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179 vlogwrite(pri, fmt, args);
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180 #ifdef ENABLE_DEBUG
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181 if (debugfile)
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182 vdebugwrite(pri, fmt, args_copy);
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183 va_end(args_copy);
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184 #endif
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185 va_end(args);
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186
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187 errno = saved_errno;
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188 }
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189
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190 #ifdef ENABLE_DEBUG
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191 void
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192 debugf(const char *fmt, ...)
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193 {
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194 va_list args;
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195 va_start(args, fmt);
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196
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197 vdebugwrite(LOG_DEBUG, fmt, args);
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198
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199 va_end(args);
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200 }
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201
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202 void
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203 vdebugf(const char *fmt, va_list args)
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204 {
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205 vdebugwrite(LOG_DEBUG, fmt, args);
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206 }
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207 #endif
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208
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209 void
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210 maillog(const char *fmt, ...)
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211 {
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212 va_list args;
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213 va_start(args, fmt);
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214
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215 vlogwrite(LOG_NOTICE, fmt, args);
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216
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217 va_end(args);
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218 }