xref: /PHP-5.5/ext/gd/gd_compat.c (revision 96a57512) 
1 #include "php_config.h"
2 
3 #ifdef HAVE_GD_PNG
4 /* needs to be first */
5 # include <png.h>
6 #endif
7 
8 #ifdef HAVE_GD_JPG
9 # include <jpeglib.h>
10 #endif
11 
12 #include "gd_compat.h"
13 #include "php.h"
14 
15 #ifdef HAVE_GD_JPG
gdJpegGetVersionInt()16 int gdJpegGetVersionInt()
17 {
18 	return JPEG_LIB_VERSION;
19 }
20 
gdJpegGetVersionString()21 const char * gdJpegGetVersionString()
22 {
23 	switch(JPEG_LIB_VERSION) {
24 		case 62:
25 			return "6b";
26 			break;
27 
28 		case 70:
29 			return "7";
30 			break;
31 
32 		case 80:
33 			return "8";
34 			break;
35 
36 		default:
37 			return "unknown";
38 	}
39 }
40 #endif
41 
42 #ifdef HAVE_GD_PNG
gdPngGetVersionString()43 const char * gdPngGetVersionString()
44 {
45 	return PNG_LIBPNG_VER_STRING;
46 }
47 #endif
48 
overflow2(int a,int b)49 int overflow2(int a, int b)
50 {
51 	TSRMLS_FETCH();
52 
53 	if(a <= 0 || b <= 0) {
54 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "gd warning: one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully\n");
55 		return 1;
56 	}
57 	if(a > INT_MAX / b) {
58 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "gd warning: product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully\n");
59 		return 1;
60 	}
61 	return 0;
62 }
63 
64