1 | /*- |
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2 | * Copyright (c) 2002-2003 Networks Associates Technology, Inc. |
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3 | * Copyright (c) 2004-2011 Dag-Erling Smørgrav |
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4 | * All rights reserved. |
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5 | * |
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6 | * This software was developed for the FreeBSD Project by ThinkSec AS and |
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7 | * Network Associates Laboratories, the Security Research Division of |
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8 | * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 |
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9 | * ("CBOSS"), as part of the DARPA CHATS research program. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * 1. Redistributions of source code must retain the above copyright |
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15 | * notice, this list of conditions and the following disclaimer. |
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16 | * 2. Redistributions in binary form must reproduce the above copyright |
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17 | * notice, this list of conditions and the following disclaimer in the |
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18 | * documentation and/or other materials provided with the distribution. |
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19 | * 3. The name of the author may not be used to endorse or promote |
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20 | * products derived from this software without specific prior written |
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21 | * permission. |
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22 | * |
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23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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33 | * SUCH DAMAGE. |
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34 | * |
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35 | * $Id: openpam_log.c 437 2011-09-13 12:00:13Z des $ |
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36 | */ |
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37 | |
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38 | #ifdef HAVE_CONFIG_H |
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39 | # include "config.h" |
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40 | #endif |
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41 | |
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42 | #include <ctype.h> |
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43 | #include <stdarg.h> |
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44 | #include <stdio.h> |
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45 | #include <stdlib.h> |
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46 | #include <string.h> |
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47 | #include <syslog.h> |
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48 | |
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49 | #include <security/pam_appl.h> |
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50 | |
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51 | #include "openpam_impl.h" |
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52 | |
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53 | #ifdef OPENPAM_DEBUG |
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54 | int openpam_debug = 1; |
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55 | #else |
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56 | int openpam_debug = 0; |
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57 | #endif |
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58 | |
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59 | #if !defined(openpam_log) |
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60 | |
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61 | /* |
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62 | * OpenPAM extension |
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63 | * |
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64 | * Log a message through syslog |
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65 | */ |
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66 | |
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67 | void |
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68 | openpam_log(int level, const char *fmt, ...) |
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69 | { |
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70 | va_list ap; |
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71 | int priority; |
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72 | |
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73 | switch (level) { |
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74 | case PAM_LOG_DEBUG: |
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75 | if (!openpam_debug) |
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76 | return; |
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77 | priority = LOG_DEBUG; |
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78 | break; |
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79 | case PAM_LOG_VERBOSE: |
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80 | priority = LOG_INFO; |
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81 | break; |
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82 | case PAM_LOG_NOTICE: |
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83 | priority = LOG_NOTICE; |
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84 | break; |
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85 | case PAM_LOG_ERROR: |
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86 | default: |
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87 | priority = LOG_ERR; |
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88 | break; |
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89 | } |
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90 | va_start(ap, fmt); |
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91 | vsyslog(priority, fmt, ap); |
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92 | va_end(ap); |
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93 | } |
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94 | |
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95 | #else |
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96 | |
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97 | void |
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98 | _openpam_log(int level, const char *func, const char *fmt, ...) |
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99 | { |
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100 | va_list ap; |
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101 | char *format; |
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102 | int priority; |
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103 | |
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104 | switch (level) { |
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105 | case PAM_LOG_DEBUG: |
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106 | if (!openpam_debug) |
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107 | return; |
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108 | priority = LOG_DEBUG; |
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109 | break; |
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110 | case PAM_LOG_VERBOSE: |
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111 | priority = LOG_INFO; |
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112 | break; |
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113 | case PAM_LOG_NOTICE: |
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114 | priority = LOG_NOTICE; |
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115 | break; |
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116 | case PAM_LOG_ERROR: |
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117 | default: |
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118 | priority = LOG_ERR; |
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119 | break; |
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120 | } |
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121 | va_start(ap, fmt); |
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122 | if (asprintf(&format, "in %s(): %s", func, fmt) > 0) { |
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123 | vsyslog(priority, format, ap); |
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124 | FREE(format); |
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125 | } else { |
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126 | vsyslog(priority, fmt, ap); |
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127 | } |
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128 | va_end(ap); |
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129 | } |
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130 | |
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131 | #endif |
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132 | |
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133 | /** |
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134 | * The =openpam_log function logs messages using =syslog. |
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135 | * It is primarily intended for internal use by the library and modules. |
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136 | * |
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137 | * The =level argument indicates the importance of the message. |
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138 | * The following levels are defined: |
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139 | * |
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140 | * =PAM_LOG_DEBUG: |
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141 | * Debugging messages. |
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142 | * These messages are normally not logged unless the global |
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143 | * integer variable :openpam_debug is set to a non-zero |
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144 | * value, in which case they are logged with a =syslog |
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145 | * priority of =LOG_DEBUG. |
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146 | * =PAM_LOG_VERBOSE: |
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147 | * Information about the progress of the authentication |
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148 | * process, or other non-essential messages. |
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149 | * These messages are logged with a =syslog priority of |
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150 | * =LOG_INFO. |
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151 | * =PAM_LOG_NOTICE: |
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152 | * Messages relating to non-fatal errors. |
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153 | * These messages are logged with a =syslog priority of |
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154 | * =LOG_NOTICE. |
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155 | * =PAM_LOG_ERROR: |
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156 | * Messages relating to serious errors. |
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157 | * These messages are logged with a =syslog priority of |
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158 | * =LOG_ERR. |
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159 | * |
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160 | * The remaining arguments are a =printf format string and the |
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161 | * corresponding arguments. |
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162 | */ |
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