From 88e022af7472022b512b2db421c22be21dffaec6 Mon Sep 17 00:00:00 2001
From: Biswapriyo Nath <nathbappai@gmail.com>
Date: Mon, 17 Jan 2022 21:53:35 +0530
Subject: [PATCH] ebook-tools: Add package

---
 mingw-w64-ebook-tools/PKGBUILD        | 56 +++++++++++++++++++++++++++
 mingw-w64-ebook-tools/crash-fix.patch | 51 ++++++++++++++++++++++++
 2 files changed, 107 insertions(+)
 create mode 100644 mingw-w64-ebook-tools/PKGBUILD
 create mode 100644 mingw-w64-ebook-tools/crash-fix.patch

diff --git a/mingw-w64-ebook-tools/PKGBUILD b/mingw-w64-ebook-tools/PKGBUILD
new file mode 100644
index 0000000000..6f5a15b076
--- /dev/null
+++ b/mingw-w64-ebook-tools/PKGBUILD
@@ -0,0 +1,56 @@
+# Maintainer: Biswapriyo Nath <nathbappai@gmail.com>
+
+_realname=ebook-tools
+pkgbase=mingw-w64-${_realname}
+pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
+pkgver=0.2.2
+pkgrel=1
+pkgdesc="Tools for accessing and converting various ebook file formats (mingw-w64)"
+arch=('any')
+mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
+url="https://sourceforge.net/projects/ebook-tools/"
+license=('spdx:MIT')
+depends=("${MINGW_PACKAGE_PREFIX}-libzip"
+         "${MINGW_PACKAGE_PREFIX}-libxml2")
+makedepends=("${MINGW_PACKAGE_PREFIX}-cc"
+             "${MINGW_PACKAGE_PREFIX}-cmake"
+             "${MINGW_PACKAGE_PREFIX}-ninja")
+source=("https://downloads.sourceforge.net/${_realname}/${_realname}-${pkgver}.tar.gz"
+        crash-fix.patch)
+sha256sums=('cbc35996e911144fa62925366ad6a6212d6af2588f1e39075954973bbee627ae'
+            'ad556ce08909727a6022c9f1632086ccb8623a81a4f39cd34722e22116e14527')
+
+prepare() {
+  cd "${_realname}-${pkgver}"
+
+  # https://sourceforge.net/p/ebook-tools/bugs/8/
+  patch -p2 -i "${srcdir}/crash-fix.patch"
+}
+
+build() {
+  declare -a _extra_config
+  if check_option "debug" "n"; then
+    _extra_config+=("-DCMAKE_BUILD_TYPE=Release")
+  else
+    _extra_config+=("-DCMAKE_BUILD_TYPE=Debug")
+  fi
+
+  [[ -d "${srcdir}/build-${MSYSTEM}" ]] && rm -rf "${srcdir}/build-${MSYSTEM}"
+  mkdir -p "${srcdir}/build-${MSYSTEM}" && cd "${srcdir}/build-${MSYSTEM}"
+
+  MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
+  ${MINGW_PREFIX}/bin/cmake.exe \
+    -G "Ninja" \
+    "${_extra_config[@]}" \
+    -DCMAKE_INSTALL_PREFIX=${MINGW_PREFIX} \
+    ../${_realname}-${pkgver}
+
+  ${MINGW_PREFIX}/bin/cmake.exe --build ./
+}
+
+package() {
+  cd "${srcdir}/build-${MSYSTEM}"
+  DESTDIR="${pkgdir}" ${MINGW_PREFIX}/bin/cmake.exe --install ./
+
+  install -Dm644 "${srcdir}/${_realname}-${pkgver}/LICENSE" "${pkgdir}${MINGW_PREFIX}/share/licenses/${_realname}/LICENSE"
+}
diff --git a/mingw-w64-ebook-tools/crash-fix.patch b/mingw-w64-ebook-tools/crash-fix.patch
new file mode 100644
index 0000000000..2389d299cf
--- /dev/null
+++ b/mingw-w64-ebook-tools/crash-fix.patch
@@ -0,0 +1,51 @@
+From 93ebf942a90f9c95797838f9adab94bc0378671c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
+Date: Tue, 30 Apr 2019 16:36:09 +0200
+Subject: [PATCH] Avoid crash on toc.ncx navPoint without navLabel
+
+Althoug at least one navLabel is required per navPoint, there is no
+guarantee it actually exists.
+
+Avoid crashes due to invalid accesses of a null label in case the toc is
+broken, and spew a warning.
+
+Fixes #8 epub_tit_next crashes on navPoint without navLabel.
+---
+ ebook-tools/src/libepub/epub.c | 5 +++--
+ ebook-tools/src/libepub/opf.c  | 4 ++++
+ 2 files changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/ebook-tools/src/libepub/epub.c b/ebook-tools/src/libepub/epub.c
+index d085503..a259d9d 100644
+--- a/ebook-tools/src/libepub/epub.c
++++ b/ebook-tools/src/libepub/epub.c
+@@ -469,8 +469,9 @@ int epub_tit_next(struct titerator *tit) {
+   case TITERATOR_NAVMAP:
+   case TITERATOR_PAGES:
+     ti = GetNodeData(curr);
+-    tit->cache.label = 
+-      (char *)_opf_label_get_by_doc_lang(tit->epub->opf, ti->label);
++    if (ti->label)
++      tit->cache.label =
++        (char *)_opf_label_get_by_doc_lang(tit->epub->opf, ti->label);
+ 
+     if (! tit->cache.label)
+       tit->cache.label = (char *)ti->id;
+diff --git a/ebook-tools/src/libepub/opf.c b/ebook-tools/src/libepub/opf.c
+index 6851db2..09bce9e 100644
+--- a/ebook-tools/src/libepub/opf.c
++++ b/ebook-tools/src/libepub/opf.c
+@@ -398,6 +398,10 @@ void _opf_parse_navmap(struct opf *opf, xmlTextReaderPtr reader) {
+      
+       } else if (xmlTextReaderNodeType(reader) == 15) {
+         if (item) {
++          if (! item->label) {
++            _epub_print_debug(opf->epub, DEBUG_WARNING, 
++                              "- missing navlabel for nav point element");
++          }
+           _epub_print_debug(opf->epub, DEBUG_INFO, 
+                             "adding nav point item->%s %s (d:%d,p:%d)", 
+                             item->id, item->src, item->depth, item->playOrder);
+-- 
+2.21.0
+