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1845c2a436
* gnu/packages/php.scm: New file. * gnu/packages/patches/gd-fix-chunk-size-on-boundaries.patch: New file. * gnu/packages/patches/gd-fix-truecolor-format-correction.patch: New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add php. (dist_patch_DATA): Add gd patches. Co-authored-by: Marius Bakke <mbakke@fastmail.com>
102 lines
2.8 KiB
Diff
102 lines
2.8 KiB
Diff
This fixes PHP bug #73155: https://bugs.php.net/bug.php?id=73155
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Patch adapted from upstream source repository:
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https://github.com/libgd/libgd/commit/8067a8ac336dfe0acbe96ec2eb24572209a7f279
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(.gitignore change removed)
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From 8067a8ac336dfe0acbe96ec2eb24572209a7f279 Mon Sep 17 00:00:00 2001
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From: "Christoph M. Becker" <cmbecker69@gmx.de>
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Date: Fri, 23 Sep 2016 18:29:52 +0200
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Subject: [PATCH] Fix #309: gdImageGd2() writes wrong chunk sizes on boundaries
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(cherry picked from commit bb1998a16e30d542ab22eba5501911a9aa066edb)
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---
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src/gd_gd2.c | 4 ++--
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tests/gd2/CMakeLists.txt | 1 +
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tests/gd2/Makemodule.am | 1 +
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tests/gd2/bug00309.c | 37 +++++++++++++++++++++++++++++++++++++
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4 files changed, 41 insertions(+), 2 deletions(-)
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create mode 100644 tests/gd2/bug00309.c
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diff --git a/src/gd_gd2.c b/src/gd_gd2.c
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index 75e5e1f..b9b2f93 100644
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--- a/src/gd_gd2.c
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+++ b/src/gd_gd2.c
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@@ -938,8 +938,8 @@ _gdImageGd2 (gdImagePtr im, gdIOCtx * out, int cs, int fmt)
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};
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/* Work out number of chunks. */
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- ncx = im->sx / cs + 1;
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- ncy = im->sy / cs + 1;
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+ ncx = (im->sx + cs - 1) / cs;
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+ ncy = (im->sy + cs - 1) / cs;
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/* Write the standard header. */
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_gd2PutHeader (im, out, cs, fmt, ncx, ncy);
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diff --git a/tests/gd2/CMakeLists.txt b/tests/gd2/CMakeLists.txt
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index 3b650ad..247b466 100644
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--- a/tests/gd2/CMakeLists.txt
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+++ b/tests/gd2/CMakeLists.txt
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@@ -1,5 +1,6 @@
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SET(TESTS_FILES
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bug_289
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+ bug00309
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gd2_empty_file
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gd2_im2im
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gd2_null
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diff --git a/tests/gd2/Makemodule.am b/tests/gd2/Makemodule.am
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index b8ee946..d69aee0 100644
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--- a/tests/gd2/Makemodule.am
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+++ b/tests/gd2/Makemodule.am
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@@ -1,5 +1,6 @@
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libgd_test_programs += \
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gd2/bug_289 \
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+ gd2/bug00309 \
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gd2/gd2_empty_file \
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gd2/php_bug_72339 \
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gd2/gd2_read_corrupt
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diff --git a/tests/gd2/bug00309.c b/tests/gd2/bug00309.c
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new file mode 100644
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index 0000000..b649cdc
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--- /dev/null
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+++ b/tests/gd2/bug00309.c
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@@ -0,0 +1,37 @@
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+/**
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+ * Regression test for <https://github.com/libgd/libgd/issues/309>.
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+ *
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+ * We test that an image with 64x64 pixels reports only a single chunk in the
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+ * GD2 image header when the chunk size is 64.
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+ */
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+
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+
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+#include "gd.h"
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+#include "gdtest.h"
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+
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+
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+int main()
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+{
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+ gdImagePtr im;
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+ unsigned char *buf;
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+ int size, word;
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+
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+ im = gdImageCreate(64, 64);
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+ gdImageColorAllocate(im, 0, 0, 0);
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+
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+ buf = gdImageGd2Ptr(im, 64, 1, &size);
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+
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+ gdImageDestroy(im);
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+
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+ word = buf[10] << 8 | buf[11];
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+ gdTestAssertMsg(word == 64, "chunk size is %d, but expected 64\n", word);
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+ word = buf[14] << 8 | buf[15];
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+ gdTestAssertMsg(word == 1, "x chunk count is %d, but expected 1\n", word);
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+ word = buf[16] << 8 | buf[17];
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+ gdTestAssertMsg(word == 1, "y chunk count is %d, but expected 1\n", word);
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+ gdTestAssertMsg(size == 5145, "file size is %d, but expected 5145\n", size);
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+
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+ gdFree(buf);
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+
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+ return gdNumFailures();
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+}
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