patches/glib2/glib-2.74.6-skip_warnings-1.patch

   1 Submitted By:            Bruce Dubbs <bdubbs@linuxfromscratch.org>
   2 Rediffed By:             Douglas R. Reno <renodr at linuxfromscratch dot org>
   3 Date:                    2017-10-15
   4 Rediffed Date:           2021-04-01
   5 Initial Package Version: 2.54.0
   6 Upstream Status:         Not submitted
   7 Origin:                  Self
   8 Description:             Adds a capabiility to skip printing warning messages using
   9                          an environment variable: GLIB_LOG_LEVEL.  The value
  10                          of the variable is a digit that correponds to:
  11                          1  Alert
  12                          2  Critical
  13                          3  Error
  14                          4  Warning
  15                          5  Notice
  16
  17                          For instance GLIB_LOG_LEVEL=4 will skip output of Warning and
  18                          Notice messages (and Info/Debug messages if they are turned on).
  19
  20                          Rediffed for 2.68.0 to reduce the fuzz warnings.
  21
  22 diff -Naurp glib-2.68.0.orig/glib/gmessages.c glib-2.68.0/glib/gmessages.c
  23 --- glib-2.68.0.orig/glib/gmessages.c   2021-03-18 08:28:31.909625000 -0500
  24 +++ glib-2.68.0/glib/gmessages.c        2021-04-01 20:32:23.517596280 -0500
  25 @@ -528,6 +528,34 @@ static GDestroyNotify log_writer_user_da
  26
  27  /* --- functions --- */
  28
  29 +/* skip_message
  30 + *
  31 + * This internal function queries an optional environment variable,
  32 + * GLIB_LOG_LEVEL and converts it to a value consistent
  33 + * with the type GLogLevelFlags. If the value is equal to
  34 + * or greater than the integer equivalent of the log_level,
  35 + * then the function returns a boolean that indicates that
  36 + * logging the output should be skipped.
  37 + */
  38 +
  39 +static gboolean skip_message( GLogLevelFlags log_level);
  40 +
  41 +static gboolean skip_message( GLogLevelFlags log_level)
  42 +{
  43 +   char*    user_log_level;
  44 +   int      user_log_int;
  45 +   gboolean skip = FALSE;
  46 +
  47 +   user_log_level = getenv( "GLIB_LOG_LEVEL" );
  48 +
  49 +   user_log_int = ( user_log_level != NULL ) ? atoi( user_log_level ) : 0;
  50 +   user_log_int = ( user_log_level != 0 ) ? 1 << user_log_int         : 0;
  51 +
  52 +   if ( user_log_int >= log_level ) skip = TRUE;
  53 +
  54 +   return skip;
  55 +}
  56 +
  57  static void _g_log_abort (gboolean breakpoint);
  58
  59  static void
  60 @@ -2591,6 +2619,9 @@ g_log_writer_standard_streams (GLogLevel
  61    g_return_val_if_fail (fields != NULL, G_LOG_WRITER_UNHANDLED);
  62    g_return_val_if_fail (n_fields > 0, G_LOG_WRITER_UNHANDLED);
  63
  64 +  /* If the user does not want this message level, just return */
  65 +  if ( skip_message( log_level) ) return G_LOG_WRITER_HANDLED;
  66 +
  67    stream = log_level_to_file (log_level);
  68    if (!stream || fileno (stream) < 0)
  69      return G_LOG_WRITER_UNHANDLED;
  70 @@ -2818,6 +2849,9 @@ _g_log_writer_fallback (GLogLevelFlags
  71    FILE *stream;
  72    gsize i;
  73
  74 +  /* If the user does not want this message level, just return */
  75 +  if ( skip_message( log_level) ) return G_LOG_WRITER_HANDLED;
  76 +
  77    /* we cannot call _any_ GLib functions in this fallback handler,
  78     * which is why we skip UTF-8 conversion, etc.
  79     * since we either recursed or ran out of memory, we're in a pretty