/* pngerror.c - stub functions for i/o and memory allocation
*
- * Last changed in libpng 1.6.15 [November 20, 2014]
- * Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
- * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
- * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
+ * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
+ * Copyright (c) 1996-1997 Andreas Dilger
+ * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
#ifdef PNG_WARNINGS_SUPPORTED
static void /* PRIVATE */
png_default_warning PNGARG((png_const_structrp png_ptr,
- png_const_charp warning_message));
+ png_const_charp warning_message));
#endif /* WARNINGS */
/* This function is called whenever there is a fatal error. This function
#ifdef PNG_ERROR_TEXT_SUPPORTED
PNG_FUNCTION(void,PNGAPI
png_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
+ PNG_NORETURN)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16];
if (png_ptr != NULL)
{
if ((png_ptr->flags &
- (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0
+ (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0)
{
if (*error_message == PNG_LITERAL_SHARP)
{
else
error_message += offset;
- }
+ }
- else
- {
- if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
+ else
{
- msg[0] = '0';
- msg[1] = '\0';
- error_message = msg;
+ if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
+ {
+ msg[0] = '0';
+ msg[1] = '\0';
+ error_message = msg;
+ }
}
- }
- }
+ }
}
#endif
if (png_ptr != NULL && png_ptr->error_fn != NULL)
*/
size_t
png_safecat(png_charp buffer, size_t bufsize, size_t pos,
- png_const_charp string)
+ png_const_charp string)
{
if (buffer != NULL && pos < bufsize)
{
*/
png_charp
png_format_number(png_const_charp start, png_charp end, int format,
- png_alloc_size_t number)
+ png_alloc_size_t number)
{
int count = 0; /* number of digits output */
int mincount = 1; /* minimum number required */
case PNG_NUMBER_FORMAT_02u:
/* Expects at least 2 digits. */
mincount = 2;
- /* FALL THROUGH */
+ /* FALLTHROUGH */
case PNG_NUMBER_FORMAT_u:
*--end = digits[number % 10];
case PNG_NUMBER_FORMAT_02x:
/* This format expects at least two digits */
mincount = 2;
- /* FALL THROUGH */
+ /* FALLTHROUGH */
case PNG_NUMBER_FORMAT_x:
*--end = digits[number & 0xf];
}
if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr),
- warning_message + offset);
+ warning_message + offset);
else
png_default_warning(png_ptr, warning_message + offset);
}
*/
void
png_warning_parameter(png_warning_parameters p, int number,
- png_const_charp string)
+ png_const_charp string)
{
if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT)
(void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string);
void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
- png_alloc_size_t value)
+ png_alloc_size_t value)
{
char buffer[PNG_NUMBER_BUFFER_SIZE];
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
void
png_warning_parameter_signed(png_warning_parameters p, int number, int format,
- png_int_32 value)
+ png_int_32 value)
{
png_alloc_size_t u;
png_charp str;
void
png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p,
- png_const_charp message)
+ png_const_charp message)
{
/* The internal buffer is just 192 bytes - enough for all our messages,
* overflow doesn't happen because this code checks! If someone figures
void /* PRIVATE */
png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
{
- if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
- png_warning(png_ptr, error_message);
- else
- png_error(png_ptr, error_message);
+ if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
+ png_warning(png_ptr, error_message);
+ else
+ png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message)
void /* PRIVATE */
png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
{
- if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
- png_warning(png_ptr, error_message);
- else
- png_error(png_ptr, error_message);
+ if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
+ png_warning(png_ptr, error_message);
+ else
+ png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message)
* if the character is invalid.
*/
#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
-static PNG_CONST char png_digit[16] = {
+static const char png_digit[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'
};
#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
PNG_FUNCTION(void,PNGAPI
png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
+ PNG_NORETURN)
{
char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
{
# define fixed_message "fixed point overflow in "
# define fixed_message_ln ((sizeof fixed_message)-1)
- int iin;
+ unsigned int iin;
char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
memcpy(msg, fixed_message, fixed_message_ln);
iin = 0;
else
{
png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *,
- png_malloc_warn(png_ptr, jmp_buf_size));
+ png_malloc_warn(png_ptr, jmp_buf_size));
if (png_ptr->jmp_buf_ptr == NULL)
return NULL; /* new NULL return on OOM */
*/
static PNG_FUNCTION(void /* PRIVATE */,
png_default_error,(png_const_structrp png_ptr, png_const_charp error_message),
- PNG_NORETURN)
+ PNG_NORETURN)
{
#ifdef PNG_CONSOLE_IO_SUPPORTED
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
*/
PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI
png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
- PNG_NORETURN)
+ PNG_NORETURN)
{
- const png_const_structrp png_ptr = png_nonconst_ptr;
+ png_const_structrp png_ptr = png_nonconst_ptr;
png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
/* An error is always logged here, overwriting anything (typically a warning)
/* Missing longjmp buffer, the following is to help debugging: */
{
size_t pos = png_safecat(image->message, (sizeof image->message), 0,
- "bad longjmp: ");
+ "bad longjmp: ");
png_safecat(image->message, (sizeof image->message), pos,
error_message);
}
void /* PRIVATE */ PNGCBAPI
png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
{
- const png_const_structrp png_ptr = png_nonconst_ptr;
+ png_const_structrp png_ptr = png_nonconst_ptr;
png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
/* A warning is only logged if there is no prior warning or error. */