1 /* Author: Joshua Brindle <jbrindle (at) tresys.co 2 * Jason Tang <jtang (at) tresys.com> 3 * Ivan Gyurdiev <ivg2 (at) cornell.edu> 4 * 5 * Copyright (C) 2004-2005 Tresys Technology, LLC 6 * Copyright (C) 2005 Red Hat Inc. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23 #include <stdarg.h> 24 #include <stdlib.h> 25 #include <stdio.h> 26 #include <errno.h> 27 #include <string.h> 28 #include "handle.h" 29 #include "debug.h" 30 31 int semanage_msg_get_level(semanage_handle_t * handle) 32 { 33 return handle->msg_level; 34 } 35 36 hidden_def(semanage_msg_get_level) 37 38 const char *semanage_msg_get_channel(semanage_handle_t * handle) 39 { 40 return handle->msg_channel; 41 } 42 43 hidden_def(semanage_msg_get_channel) 44 45 const char *semanage_msg_get_fname(semanage_handle_t * handle) 46 { 47 return handle->msg_fname; 48 } 49 50 hidden_def(semanage_msg_get_fname) 51 #ifdef __GNUC__ 52 __attribute__ ((format(printf, 3, 4))) 53 #endif 54 void hidden semanage_msg_default_handler(void *varg __attribute__ ((unused)), 55 semanage_handle_t * handle, 56 const char *fmt, ...) 57 { 58 59 FILE *stream = NULL; 60 int errsv = 0; 61 62 switch (semanage_msg_get_level(handle)) { 63 64 case SEMANAGE_MSG_ERR: 65 stream = stderr; 66 errsv = errno; 67 break; 68 case SEMANAGE_MSG_WARN: 69 stream = stderr; 70 break; 71 default: 72 stream = stdout; 73 break; 74 } 75 76 fprintf(stream, "%s.%s: ", 77 semanage_msg_get_channel(handle), 78 semanage_msg_get_fname(handle)); 79 80 va_list ap; 81 va_start(ap, fmt); 82 vfprintf(stream, fmt, ap); 83 va_end(ap); 84 85 if (errsv && errsv != ENOMEM) 86 fprintf(stream, " (%s).", strerror(errsv)); 87 88 fprintf(stream, "\n"); 89 } 90 91 #ifdef __GNUC__ 92 __attribute__ ((format(printf, 3, 4))) 93 #endif 94 void hidden semanage_msg_relay_handler(void *varg, 95 sepol_handle_t * sepolh, 96 const char *fmt, ...) 97 { 98 va_list ap; 99 semanage_handle_t *sh = varg; 100 char buffer[1024]; 101 102 if (!sh->msg_callback) 103 return; 104 105 va_start(ap, fmt); 106 vsnprintf(buffer, sizeof(buffer), fmt, ap); 107 va_end(ap); 108 109 sh->msg_fname = sepol_msg_get_fname(sepolh); 110 sh->msg_channel = sepol_msg_get_channel(sepolh); 111 sh->msg_level = sepol_msg_get_level(sepolh); /* XXX should map values */ 112 sh->msg_callback(sh->msg_callback_arg, sh, "%s", buffer); 113 return; 114 } 115 116 extern void semanage_msg_set_callback(semanage_handle_t * handle, 117 #ifdef __GNUC__ 118 __attribute__ ((format(printf, 3, 4))) 119 #endif 120 void (*msg_callback) (void *varg, 121 semanage_handle_t * 122 handle, 123 const char *fmt, 124 ...), 125 void *msg_callback_arg) 126 { 127 128 handle->msg_callback = msg_callback; 129 handle->msg_callback_arg = msg_callback_arg; 130 } 131
