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      1 /*
      2  * The copyright in this software is being made available under the 2-clauses
      3  * BSD License, included below. This software may be subject to other third
      4  * party and contributor rights, including patent rights, and no such rights
      5  * are granted under this license.
      6  *
      7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
      8  * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
      9  * Copyright (c) 2012, CS Systemes d'Information, France
     10  * All rights reserved.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include "opj_includes.h"
     35 
     36 /* ==========================================================
     37      Utility functions
     38    ==========================================================*/
     39 
     40 #ifdef OPJ_CODE_NOT_USED
     41 #ifndef _WIN32
     42 static char*
     43 i2a(unsigned i, char *a, unsigned r) {
     44 	if (i/r > 0) a = i2a(i/r,a,r);
     45 	*a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i%r];
     46 	return a+1;
     47 }
     48 
     49 /**
     50  Transforms integer i into an ascii string and stores the result in a;
     51  string is encoded in the base indicated by r.
     52  @param i Number to be converted
     53  @param a String result
     54  @param r Base of value; must be in the range 2 - 36
     55  @return Returns a
     56 */
     57 static char *
     58 _itoa(int i, char *a, int r) {
     59 	r = ((r < 2) || (r > 36)) ? 10 : r;
     60 	if(i < 0) {
     61 		*a = '-';
     62 		*i2a(-i, a+1, r) = 0;
     63 	}
     64 	else *i2a(i, a, r) = 0;
     65 	return a;
     66 }
     67 
     68 #endif /* !_WIN32 */
     69 #endif
     70 
     71 /* ----------------------------------------------------------------------- */
     72 /**
     73  * Default callback function.
     74  * Do nothing.
     75  */
     76 static void opj_default_callback (const char *msg, void *client_data)
     77 {
     78     OPJ_ARG_NOT_USED(msg);
     79     OPJ_ARG_NOT_USED(client_data);
     80 }
     81 
     82 /* ----------------------------------------------------------------------- */
     83 
     84 
     85 /* ----------------------------------------------------------------------- */
     86 OPJ_BOOL opj_event_msg(opj_event_mgr_t* p_event_mgr, OPJ_INT32 event_type, const char *fmt, ...) {
     87 #define OPJ_MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */
     88 	opj_msg_callback msg_handler = 00;
     89 	void * l_data = 00;
     90 
     91 	if(p_event_mgr != 00) {
     92 		switch(event_type) {
     93 			case EVT_ERROR:
     94 				msg_handler = p_event_mgr->error_handler;
     95 				l_data = p_event_mgr->m_error_data;
     96 				break;
     97 			case EVT_WARNING:
     98 				msg_handler = p_event_mgr->warning_handler;
     99 				l_data = p_event_mgr->m_warning_data;
    100 				break;
    101 			case EVT_INFO:
    102 				msg_handler = p_event_mgr->info_handler;
    103 				l_data = p_event_mgr->m_info_data;
    104 				break;
    105 			default:
    106 				break;
    107 		}
    108 		if(msg_handler == 00) {
    109 			return OPJ_FALSE;
    110 		}
    111 	} else {
    112 		return OPJ_FALSE;
    113 	}
    114 
    115 	if ((fmt != 00) && (p_event_mgr != 00)) {
    116 		va_list arg;
    117 		size_t str_length/*, i, j*/; /* UniPG */
    118 		char message[OPJ_MSG_SIZE];
    119 		memset(message, 0, OPJ_MSG_SIZE);
    120 		/* initialize the optional parameter list */
    121 		va_start(arg, fmt);
    122 		/* check the length of the format string */
    123 		str_length = (strlen(fmt) > OPJ_MSG_SIZE) ? OPJ_MSG_SIZE : strlen(fmt);
    124         (void)str_length;
    125 		/* parse the format string and put the result in 'message' */
    126 		vsnprintf(message, OPJ_MSG_SIZE, fmt, arg); /* UniPG */
    127 		/* deinitialize the optional parameter list */
    128 		va_end(arg);
    129 
    130 		/* output the message to the user program */
    131 		msg_handler(message, l_data);
    132 	}
    133 
    134 	return OPJ_TRUE;
    135 }
    136 
    137 void opj_set_default_event_handler(opj_event_mgr_t * p_manager)
    138 {
    139 	p_manager->m_error_data = 00;
    140 	p_manager->m_warning_data = 00;
    141 	p_manager->m_info_data = 00;
    142 	p_manager->error_handler = opj_default_callback;
    143 	p_manager->info_handler = opj_default_callback;
    144 	p_manager->warning_handler = opj_default_callback;
    145 }
    146 
    147