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--- a/gif2png.c 2012-01-29 00:02:06.000000000 +0100
+++ b/gif2png.c 2012-02-06 00:49:14.000000000 +0100
@@ -12,6 +12,7 @@
#include <unistd.h> /* for isatty() */
#include <sys/stat.h>
#include <utime.h>
+#include <zlib.h>
#if !defined(TRUE)
#define FALSE 0
@@ -122,8 +123,8 @@
int colors_used = 0;
byte remap[MAXCMSIZE];
int low_prec;
- png_struct *png_ptr = xalloc(sizeof (png_struct));
- png_info *info_ptr = xalloc(sizeof (png_info));
+ png_struct *png_ptr;
+ png_info *info_ptr;
int p;
int gray_bitdepth;
png_color pal_rgb[MAXCMSIZE], *pltep;
@@ -138,6 +139,19 @@
png_text software;
png_text comment;
+ png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (png_ptr == NULL) {
+ fprintf(stderr, "gif2png: fatal error, out of memory\n");
+ fprintf(stderr, "gif2png: exiting ungracefully\n");
+ exit(1);
+ }
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL) {
+ fprintf(stderr, "gif2png: fatal error, out of memory\n");
+ fprintf(stderr, "gif2png: exiting ungracefully\n");
+ exit(1);
+ }
+
/* these volatile declarations prevent gcc warnings ("variable might be
* clobbered by `longjmp' or `vfork'") */
volatile int gray = TRUE;
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