diff options
Diffstat (limited to 'gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch')
| -rw-r--r-- | gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch b/gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch new file mode 100644 index 0000000000..e395c66d89 --- /dev/null +++ b/gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch @@ -0,0 +1,102 @@ +This fixes PHP bug #73155: https://bugs.php.net/bug.php?id=73155 + +Patch adapted from upstream source repository: + +https://github.com/libgd/libgd/commit/8067a8ac336dfe0acbe96ec2eb24572209a7f279 + +(.gitignore change removed) + +From 8067a8ac336dfe0acbe96ec2eb24572209a7f279 Mon Sep 17 00:00:00 2001 +From: "Christoph M. Becker" <cmbecker69@gmx.de> +Date: Fri, 23 Sep 2016 18:29:52 +0200 +Subject: [PATCH] Fix #309: gdImageGd2() writes wrong chunk sizes on boundaries + +(cherry picked from commit bb1998a16e30d542ab22eba5501911a9aa066edb) +--- + src/gd_gd2.c | 4 ++-- + tests/gd2/CMakeLists.txt | 1 + + tests/gd2/Makemodule.am | 1 + + tests/gd2/bug00309.c | 37 +++++++++++++++++++++++++++++++++++++ + 4 files changed, 41 insertions(+), 2 deletions(-) + create mode 100644 tests/gd2/bug00309.c + +diff --git a/src/gd_gd2.c b/src/gd_gd2.c +index 75e5e1f..b9b2f93 100644 +--- a/src/gd_gd2.c ++++ b/src/gd_gd2.c +@@ -938,8 +938,8 @@ _gdImageGd2 (gdImagePtr im, gdIOCtx * out, int cs, int fmt) + }; + + /* Work out number of chunks. */ +- ncx = im->sx / cs + 1; +- ncy = im->sy / cs + 1; ++ ncx = (im->sx + cs - 1) / cs; ++ ncy = (im->sy + cs - 1) / cs; + + /* Write the standard header. */ + _gd2PutHeader (im, out, cs, fmt, ncx, ncy); +diff --git a/tests/gd2/CMakeLists.txt b/tests/gd2/CMakeLists.txt +index 3b650ad..247b466 100644 +--- a/tests/gd2/CMakeLists.txt ++++ b/tests/gd2/CMakeLists.txt +@@ -1,5 +1,6 @@ + SET(TESTS_FILES + bug_289 ++ bug00309 + gd2_empty_file + gd2_im2im + gd2_null +diff --git a/tests/gd2/Makemodule.am b/tests/gd2/Makemodule.am +index b8ee946..d69aee0 100644 +--- a/tests/gd2/Makemodule.am ++++ b/tests/gd2/Makemodule.am +@@ -1,5 +1,6 @@ + libgd_test_programs += \ + gd2/bug_289 \ ++ gd2/bug00309 \ + gd2/gd2_empty_file \ + gd2/php_bug_72339 \ + gd2/gd2_read_corrupt +diff --git a/tests/gd2/bug00309.c b/tests/gd2/bug00309.c +new file mode 100644 +index 0000000..b649cdc +--- /dev/null ++++ b/tests/gd2/bug00309.c +@@ -0,0 +1,37 @@ ++/** ++ * Regression test for <https://github.com/libgd/libgd/issues/309>. ++ * ++ * We test that an image with 64x64 pixels reports only a single chunk in the ++ * GD2 image header when the chunk size is 64. ++ */ ++ ++ ++#include "gd.h" ++#include "gdtest.h" ++ ++ ++int main() ++{ ++ gdImagePtr im; ++ unsigned char *buf; ++ int size, word; ++ ++ im = gdImageCreate(64, 64); ++ gdImageColorAllocate(im, 0, 0, 0); ++ ++ buf = gdImageGd2Ptr(im, 64, 1, &size); ++ ++ gdImageDestroy(im); ++ ++ word = buf[10] << 8 | buf[11]; ++ gdTestAssertMsg(word == 64, "chunk size is %d, but expected 64\n", word); ++ word = buf[14] << 8 | buf[15]; ++ gdTestAssertMsg(word == 1, "x chunk count is %d, but expected 1\n", word); ++ word = buf[16] << 8 | buf[17]; ++ gdTestAssertMsg(word == 1, "y chunk count is %d, but expected 1\n", word); ++ gdTestAssertMsg(size == 5145, "file size is %d, but expected 5145\n", size); ++ ++ gdFree(buf); ++ ++ return gdNumFailures(); ++} |