tools/verification/rv/src/utils.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * util functions.
   4  *
   5  * Copyright (C) 2022 Red Hat Inc, Daniel Bristot de Oliveira <bristot@kernel.org>
   6  */
   7
   8 #include <stdarg.h>
   9 #include <stdio.h>
  10 #include <utils.h>
  11
  12 int config_debug;
  13
  14 #define MAX_MSG_LENGTH  1024
  15
  16 /**
  17  * err_msg - print an error message to the stderr
  18  */
  19 void err_msg(const char *fmt, ...)
  20 {
  21         char message[MAX_MSG_LENGTH];
  22         va_list ap;
  23
  24         va_start(ap, fmt);
  25         vsnprintf(message, sizeof(message), fmt, ap);
  26         va_end(ap);
  27
  28         fprintf(stderr, "%s", message);
  29 }
  30
  31 /**
  32  * debug_msg - print a debug message to stderr if debug is set
  33  */
  34 void debug_msg(const char *fmt, ...)
  35 {
  36         char message[MAX_MSG_LENGTH];
  37         va_list ap;
  38
  39         if (!config_debug)
  40                 return;
  41
  42         va_start(ap, fmt);
  43         vsnprintf(message, sizeof(message), fmt, ap);
  44         va_end(ap);
  45
  46         fprintf(stderr, "%s", message);
  47 }