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[libpng17] Bump version to 1.7.0beta08

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This commit is contained in:
Glenn Randers-Pehrson
2013-04-18 07:27:13 -05:00
parent 8ef61c4693
commit 6cf97e37af
20 changed files with 193 additions and 59 deletions
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18
contrib/tools/fixitxt.c
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@@ -25,13 +25,15 @@
* gcc -O -o fixitxt fixitxt.c -lz
*/
#define MAX_LENGTH 500000
#define GETBREAK c=getchar(); if (c == EOF) break;
#include <zlib.h>
main()
{
unsigned int i;
unsigned char buf[100000];
unsigned char buf[MAX_LENGTH];
unsigned long crc;
unsigned int c;
@@ -46,13 +48,13 @@ if (c != EOF)
for (;;)
{
/* Read the length */
unsigned int length;
unsigned long length;
c=GETBREAK; buf[0] = c;
c=GETBREAK; buf[1] = c;
c=GETBREAK; buf[2] = c;
c=GETBREAK; buf[3] = c;
length=buf[0]<<24 | buf[1]<<16 | buf[2] << 8 | buf[3];
length=((((unsigned long) buf[0]<<8 + buf[1]<<16) + buf[2] << 8) + buf[3]);
/* Read the chunkname */
c=GETBREAK; buf[4] = c;
c=GETBREAK; buf[5] = c;
@@ -63,6 +65,9 @@ for (;;)
/* The iTXt chunk type expressed as integers is (105, 84, 88, 116) */
if (buf[4] == 105 && buf[5] == 84 && buf[6] == 88 && buf[7] == 116)
{
if (length >= MAX_LENGTH-12)
break; /* To do: handle this more gracefully */
/* Initialize the CRC */
crc = crc32(0, Z_NULL, 0);
@@ -86,6 +91,9 @@ for (;;)
length++;
if (length >= MAX_LENGTH-12)
break;
c=GETBREAK;
buf[length+11]=c;
@@ -115,12 +123,8 @@ for (;;)
{
c=GETBREAK;
putchar(c);
buf[i]=c;
}
crc = crc32(0, Z_NULL, 0);
crc = crc32(crc, buf+4, (uInt)length+4);
if (c == EOF)
{
break;