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Imported from pngcrush-1.3.5.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-02-19 14:58:52 -06:00
parent f142567725
commit 601daa7a76
28 changed files with 971 additions and 518 deletions
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25
pngerror.c
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@@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.5m - January 7, 2000
* libpng 1.0.5s - February 18, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
@@ -67,21 +67,26 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp message
{
int iout = 0, iin = 0;
while (iin < 4) {
while (iin < 4)
{
int c = png_ptr->chunk_name[iin++];
if (isnonalpha(c)) {
if (isnonalpha(c))
{
buffer[iout++] = '[';
buffer[iout++] = png_digit[(c & 0xf0) >> 4];
buffer[iout++] = png_digit[c & 0x0f];
buffer[iout++] = ']';
} else {
}
else
{
buffer[iout++] = (png_byte)c;
}
}
if (message == NULL)
buffer[iout] = 0;
else {
else
{
buffer[iout++] = ':';
buffer[iout++] = ' ';
png_memcpy(buffer+iout, message, 64);
@@ -117,14 +122,20 @@ png_default_error(png_structp png_ptr, png_const_charp message)
fprintf(stderr, "libpng error: %s\n", message);
#endif
#ifdef USE_FAR_KEYWORD
#ifdef PNG_SETJMP_SUPPORTED
# ifdef USE_FAR_KEYWORD
{
jmp_buf jmpbuf;
png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf));
longjmp(jmpbuf, 1);
}
#else
# else
longjmp(png_ptr->jmpbuf, 1);
# endif
#else
if (png_ptr == NULL)
/* make compiler happy */ ;
PNG_ABORT();
#endif
}