source/lib/ldb/common/ldb_debug.c

   1 /*
   2    ldb database library
   3
   4    Copyright (C) Andrew Tridgell  2004
   5
   6      ** NOTE! The following LGPL license applies to the ldb
   7      ** library. This does NOT imply that all of Samba is released
   8      ** under the LGPL
   9
  10    This library is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU Lesser General Public
  12    License as published by the Free Software Foundation; either
  13    version 2 of the License, or (at your option) any later version.
  14
  15    This library is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public
  21    License along with this library; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 */
  24
  25 /*
  26  *  Name: ldb
  27  *
  28  *  Component: ldb debug
  29  *
  30  *  Description: functions for printing debug messages
  31  *
  32  *  Author: Andrew Tridgell
  33  */
  34
  35 #include "includes.h"
  36 #include "ldb/include/includes.h"
  37
  38 /*
  39   this allows the user to choose their own debug function
  40 */
  41 int ldb_set_debug(struct ldb_context *ldb,
  42                   void (*debug)(void *context, enum ldb_debug_level level,
  43                                 const char *fmt, va_list ap),
  44                   void *context)
  45 {
  46         ldb->debug_ops.debug = debug;
  47         ldb->debug_ops.context = context;
  48         return 0;
  49 }
  50
  51 /*
  52   debug function for ldb_set_debug_stderr
  53 */
  54 static void ldb_debug_stderr(void *context, enum ldb_debug_level level,
  55                              const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
  56 static void ldb_debug_stderr(void *context, enum ldb_debug_level level,
  57                              const char *fmt, va_list ap)
  58 {
  59         if (level <= LDB_DEBUG_WARNING) {
  60                 vfprintf(stderr, fmt, ap);
  61         }
  62 }
  63
  64 /*
  65   convenience function to setup debug messages on stderr
  66   messages of level LDB_DEBUG_WARNING and higher are printed
  67 */
  68 int ldb_set_debug_stderr(struct ldb_context *ldb)
  69 {
  70         return ldb_set_debug(ldb, ldb_debug_stderr, ldb);
  71 }
  72
  73 /*
  74   log a message
  75 */
  76 void ldb_debug(struct ldb_context *ldb, enum ldb_debug_level level, const char *fmt, ...)
  77 {
  78         va_list ap;
  79         if (ldb->debug_ops.debug == NULL) {
  80                 ldb_set_debug_stderr(ldb);
  81         }
  82         va_start(ap, fmt);
  83         ldb->debug_ops.debug(ldb->debug_ops.context, level, fmt, ap);
  84         va_end(ap);
  85 }
  86
  87
  88 /*
  89   log a message, and set the ldb error string to the same message
  90 */
  91 void ldb_debug_set(struct ldb_context *ldb, enum ldb_debug_level level,
  92                    const char *fmt, ...)
  93 {
  94         va_list ap;
  95         char *msg;
  96         va_start(ap, fmt);
  97         msg = talloc_vasprintf(ldb, fmt, ap);
  98         va_end(ap);
  99         if (msg != NULL) {
 100                 ldb_set_errstring(ldb, msg);
 101                 ldb_debug(ldb, level, "%s", msg);
 102         }
 103         talloc_free(msg);
 104 }
 105