pceplib/pcep_utils_logging.c

   1 // SPDX-License-Identifier: LGPL-2.1-or-later
   2 /*
   3  * This file is part of the PCEPlib, a PCEP protocol library.
   4  *
   5  * Copyright (C) 2020 Volta Networks https://voltanet.io/
   6  *
   7  * Author : Brady Johnson <brady@voltanet.io>
   8  *
   9  */
  10
  11
  12 #ifdef HAVE_CONFIG_H
  13 #include "config.h"
  14 #endif
  15
  16 #include <stdarg.h>
  17 #include <stdio.h>
  18 #include "compiler.h"
  19 #include "pcep_utils_logging.h"
  20
  21 /* Forward declaration */
  22 int pcep_stdout_logger(int priority, const char *format, va_list args)
  23         PRINTFRR(2, 0);
  24
  25 static pcep_logger_func logger_func = pcep_stdout_logger;
  26 static int logging_level_ = LOG_INFO;
  27
  28 void register_logger(pcep_logger_func logger)
  29 {
  30         logger_func = logger;
  31 }
  32
  33 void set_logging_level(int level)
  34 {
  35         logging_level_ = level;
  36 }
  37
  38 int get_logging_level(void)
  39 {
  40         return logging_level_;
  41 }
  42
  43 void pcep_log(int priority, const char *format, ...)
  44 {
  45         va_list va;
  46         va_start(va, format);
  47         logger_func(priority, format, va);
  48         va_end(va);
  49 }
  50
  51 void pcep_log_hexbytes(int priority, const char *message, const uint8_t *bytes,
  52                        uint8_t bytes_len)
  53 {
  54         char byte_str[2048] = {0};
  55         int i = 0;
  56
  57         snprintf(byte_str, 2048, "%s ", message);
  58         for (; i < bytes_len; i++) {
  59                 snprintf(byte_str, 2048, "%02x ", bytes[i]);
  60         }
  61         snprintf(byte_str, 2048, "\n");
  62
  63         pcep_log(priority, "%s", byte_str);
  64 }
  65
  66 /* Defined with a return type to match the FRR logging signature.
  67  * Assuming glibc printf() is thread-safe. */
  68 int pcep_stdout_logger(int priority, const char *format, va_list args)
  69 {
  70         if (priority <= logging_level_) {
  71                 vprintf(format, args);
  72                 printf("\n");
  73         }
  74
  75         return 0;
  76 }