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      1 /*
      2  * Copyright (c) 2001-2002 Michael David Adams.
      3  * All rights reserved.
      4  */
      5 
      6 /* __START_OF_JASPER_LICENSE__
      7  *
      8  * JasPer License Version 2.0
      9  *
     10  * Copyright (c) 2001-2006 Michael David Adams
     11  * Copyright (c) 1999-2000 Image Power, Inc.
     12  * Copyright (c) 1999-2000 The University of British Columbia
     13  *
     14  * All rights reserved.
     15  *
     16  * Permission is hereby granted, free of charge, to any person (the
     17  * "User") obtaining a copy of this software and associated documentation
     18  * files (the "Software"), to deal in the Software without restriction,
     19  * including without limitation the rights to use, copy, modify, merge,
     20  * publish, distribute, and/or sell copies of the Software, and to permit
     21  * persons to whom the Software is furnished to do so, subject to the
     22  * following conditions:
     23  *
     24  * 1.  The above copyright notices and this permission notice (which
     25  * includes the disclaimer below) shall be included in all copies or
     26  * substantial portions of the Software.
     27  *
     28  * 2.  The name of a copyright holder shall not be used to endorse or
     29  * promote products derived from the Software without specific prior
     30  * written permission.
     31  *
     32  * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
     33  * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
     34  * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
     35  * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
     36  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
     37  * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
     38  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
     39  * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
     40  * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
     41  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
     42  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
     43  * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
     44  * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
     45  * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
     46  * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
     47  * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
     48  * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
     49  * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
     50  * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
     51  * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
     52  * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
     53  * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
     54  * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
     55  * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
     56  * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
     57  * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
     58  *
     59  * __END_OF_JASPER_LICENSE__
     60  */
     61 
     62 /******************************************************************************\
     63 * Includes.
     64 \******************************************************************************/
     65 
     66 #include <stdarg.h>
     67 #include <stdio.h>
     68 
     69 #include "jasper/jas_types.h"
     70 #include "jasper/jas_debug.h"
     71 
     72 /******************************************************************************\
     73 * Local data.
     74 \******************************************************************************/
     75 
     76 static int jas_dbglevel = 0;
     77 /* The debug level. */
     78 
     79 /******************************************************************************\
     80 * Code for getting/setting the debug level.
     81 \******************************************************************************/
     82 
     83 /* Set the library debug level. */
     84 int jas_setdbglevel(int dbglevel)
     85 {
     86     int olddbglevel;
     87 
     88     /* Save the old debug level. */
     89     olddbglevel = jas_dbglevel;
     90 
     91     /* Change the debug level. */
     92     jas_dbglevel = dbglevel;
     93 
     94     /* Return the old debug level. */
     95     return olddbglevel;
     96 }
     97 
     98 /* Get the library debug level. */
     99 int jas_getdbglevel()
    100 {
    101     return jas_dbglevel;
    102 }
    103 
    104 /******************************************************************************\
    105 * Code.
    106 \******************************************************************************/
    107 
    108 /* Perform formatted output to standard error. */
    109 int jas_eprintf(const char *fmt, ...)
    110 {
    111     int ret;
    112     va_list ap;
    113 
    114     va_start(ap, fmt);
    115     ret = vfprintf(stderr, fmt, ap);
    116     va_end(ap);
    117     return ret;
    118 }
    119 
    120 /* Dump memory to a stream. */
    121 int jas_memdump(FILE *out, void *data, size_t len)
    122 {
    123     size_t i;
    124     size_t j;
    125     uchar *dp;
    126     dp = data;
    127     for (i = 0; i < len; i += 16) {
    128         fprintf(out, "%04x:", (int)i);
    129         for (j = 0; j < 16; ++j) {
    130             if (i + j < len) {
    131                 fprintf(out, " %02x", dp[i + j]);
    132             }
    133         }
    134         fprintf(out, "\n");
    135     }
    136     return 0;
    137 }
    138