php-src/ext/gd/gd_compat.c
Peter Kokot 1ad08256f3 Sync leading and final newlines in source code files
This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
2018-10-14 12:56:38 +02:00

60 lines
983 B
C

#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#include "php_config.h"
#endif
#ifdef HAVE_GD_PNG
/* needs to be first */
# include <png.h>
#endif
#ifdef HAVE_GD_JPG
# include <jpeglib.h>
#endif
#include "gd_compat.h"
#include "php.h"
#ifdef HAVE_GD_JPG
const char * gdJpegGetVersionString()
{
switch(JPEG_LIB_VERSION) {
case 62:
return "6b";
break;
case 70:
return "7";
break;
case 80:
return "8";
break;
default:
return "unknown";
}
}
#endif
#ifdef HAVE_GD_PNG
const char * gdPngGetVersionString()
{
return PNG_LIBPNG_VER_STRING;
}
#endif
int overflow2(int a, int b)
{
if(a <= 0 || b <= 0) {
php_error_docref(NULL, E_WARNING, "one parameter to a memory allocation multiplication is negative or zero, failing operation gracefully\n");
return 1;
}
if(a > INT_MAX / b) {
php_error_docref(NULL, E_WARNING, "product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully\n");
return 1;
}
return 0;
}