| /* |
| * err.c |
| * |
| * error status reporting functions |
| * |
| * David A. McGrew |
| * Cisco Systems, Inc. |
| */ |
| /* |
| * |
| * Copyright(c) 2001-2006 Cisco Systems, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * Neither the name of the Cisco Systems, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "err.h" |
| #include "datatypes.h" |
| #include <string.h> |
| |
| /* srtp_err_file is the FILE to which errors are reported */ |
| |
| static FILE *srtp_err_file = NULL; |
| |
| srtp_err_status_t srtp_err_reporting_init () |
| { |
| #ifdef ERR_REPORTING_STDOUT |
| srtp_err_file = stdout; |
| #elif defined(ERR_REPORTING_FILE) |
| /* open file for error reporting */ |
| srtp_err_file = fopen(ERR_REPORTING_FILE, "w"); |
| if (srtp_err_file == NULL) { |
| return srtp_err_status_init_fail; |
| } |
| #endif |
| |
| return srtp_err_status_ok; |
| } |
| |
| static srtp_err_report_handler_func_t * srtp_err_report_handler = NULL; |
| |
| srtp_err_status_t srtp_install_err_report_handler(srtp_err_report_handler_func_t func) |
| { |
| srtp_err_report_handler = func; |
| return srtp_err_status_ok; |
| } |
| |
| void srtp_err_report (srtp_err_reporting_level_t level, const char *format, ...) |
| { |
| va_list args; |
| if (srtp_err_file != NULL) { |
| va_start(args, format); |
| vfprintf(srtp_err_file, format, args); |
| va_end(args); |
| } |
| if (srtp_err_report_handler != NULL) { |
| va_start(args, format); |
| char msg[512]; |
| if (vsnprintf(msg, sizeof(msg), format, args) > 0) { |
| /* strip trailing \n, callback should not have one */ |
| size_t l = strlen(msg); |
| if (l && msg[l-1] == '\n') { |
| msg[l-1] = '\0'; |
| } |
| srtp_err_report_handler(level, msg); |
| /* |
| * NOTE, need to be carefull, there is a potential that octet_string_set_to_zero() could |
| * call srtp_err_report() in the future, leading to recursion |
| */ |
| octet_string_set_to_zero(msg, sizeof(msg)); |
| } |
| va_end(args); |
| } |
| } |