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