[php-maint] Bug#331001: php5-gd: error in gd/gd.c : bad variable sizes for parse (cause data squish on 64 bits machines)

Pierre Habouzit madcoder at debian.org
Sat Oct 1 00:22:39 UTC 2005

Package: php5-gd
Version: 5.0.5-1
Severity: important
Tags: patch

  imagettftext is broken in php5-gd, but not in php4-gd on 64 machines
(amd64 here, but any machine where sizeof(long) != sizeof(int) is

  running a diff between two version shows that interesting part in
ext/gd/gd.c :

@@ -3017,8 +3109,7 @@ static void php_imagettftext_common(INTE
        zval *IM, *EXT = NULL;
        gdImagePtr im=NULL;
-       long col = -1, x = -1, y = -1;
-       int str_len, fontname_len, i, brect[8];
+       int col = -1, x = -1, y = -1, str_len, fontname_len, i,
        double ptsize, angle;
        unsigned char *str = NULL, *fontname = NULL;
        char *error = NULL;

and a bit after, you have a zend parse :

        } else if (zend_parse_parameters(argc TSRMLS_CC, "rddlllss|a", &IM, &ptsize, &angle, &x, &y, &col, &fontname, &fontname_len, &str, &str_len, &EXT) == FAILURE) {

prototype for variables x, y, col is clearly the 'lll' part, meaning that x, y and col have to be longs, not ints.

this particular change has to be reverted since it breaks GD. On 64 bits machines, you have to run :

ImageTTFText($img, $font, $angle, $whatever_you_want, $x << 32 | $y, ...) to make it work ;p
problem is, ImageTTFText is quite important for GD, and having it broken, is painful.


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12
Locale: LANG=fr_FR at euro, LC_CTYPE=fr_FR at euro (charmap=ISO-8859-15)

Versions of packages php5-gd depends on:
ii  debconf [debconf-2.0]     1.4.58         Debian configuration management sy
ii  libapache2-mod-php5 [phpa 5.0.5-1        server-side, HTML-embedded scripti
ii  libc6                     2.3.5-6        GNU C Library: Shared libraries an
ii  libfreetype6              2.1.10-1       FreeType 2 font engine, shared lib
ii  libgd2-xpm                2.0.33-2       GD Graphics Library version 2
ii  libjpeg62                 6b-10          The Independent JPEG Group's JPEG 
ii  libpng12-0                1.2.8rel-4     PNG library - runtime
ii  libt1-5                   5.1.0-2        Type 1 font rasterizer library - r
ii  libx11-6                  6.8.2.dfsg.1-7 X Window System protocol client li
ii  libxpm4                   6.8.2.dfsg.1-7 X pixmap library
pi  php5-cli [phpapi-20041030 5.0.5-1        command-line interpreter for the p
ii  php5-common               5.0.5-1        Common files for packages built fr
ii  xlibs                     6.8.2.dfsg.1-7 X Window System client libraries m
ii  zlib1g                    1:1.2.3-4      compression library - runtime

php5-gd recommends no packages.

-- debconf information:
  php5/remove_extension: true
  php5/extension_gd_apache2: true
  php5/add_extension: true
  php5/extension_gd_cli: true
  php5/extension_gd_cgi: true

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