Use library function to get version

2 files changed, 31 insertions, 3 deletions

diff --git a/PKGBUILD b/PKGBUILD
index 88843d1f9da2..211731ed1803 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -13,16 +13,19 @@ url='https://www.widevine.com/'
 license=('custom')
 options=('!strip')
 source=("chrome-eula_text-$_license_date.html::https://www.google.com/intl/en/chrome/privacy/eula_text.html"
-        "https://dl.google.com/linux/deb/pool/main/g/google-chrome-stable/google-chrome-stable_${_chrome_ver}-1_amd64.deb")
+        "https://dl.google.com/linux/deb/pool/main/g/google-chrome-stable/google-chrome-stable_${_chrome_ver}-1_amd64.deb"
+        get_cdm_version.c)
 sha256sums=('22e323091aab9730fc9431376e63d95fe03e3df08a1ab7d913b67bd16a6c159b'
-            'efd6aa29f5d1ce80a3908ee40b0c6e71aa354ad8fcd9788b1ff6893bef92d0be')
+            'efd6aa29f5d1ce80a3908ee40b0c6e71aa354ad8fcd9788b1ff6893bef92d0be'
+            '3fda44a5b8b222434530f27923568de1fda1eb0caa8621b56a8b2a6a2a2e3d5d')
 
 prepare() {
   bsdtar -x --strip-components 4 -f data.tar.xz opt/google/chrome/libwidevinecdm.so
+  gcc get_cdm_version.c -o get_cdm_version -ldl
 }
 
 pkgver() {
-  awk 'match($0,/widevine.cdm.version\0Google\0ChromeCDM\0([0-9.]+)/,a) {print a[1];}' libwidevinecdm.so
+  ./get_cdm_version
 }
 
 package() {
diff --git a/get_cdm_version.c b/get_cdm_version.c
new file mode 100644
index 000000000000..ac77bd7cf05a
--- /dev/null
+++ b/get_cdm_version.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+int main(int argc, char *argv[]) {
+  void *handle;
+  const char *(*get_cdm_version)();
+
+  handle = dlopen("./libwidevinecdm.so", RTLD_LAZY);
+  if (!handle) {
+    fprintf(stderr, "%s\n", dlerror());
+    exit(EXIT_FAILURE);
+  }
+
+  get_cdm_version = dlsym(handle, "GetCdmVersion");
+  if (!get_cdm_version) {
+    fprintf(stderr, "%s\n", dlerror());
+    exit(EXIT_FAILURE);
+  }
+
+  printf("%s\n", get_cdm_version());
+  dlclose(handle);
+  exit(EXIT_SUCCESS);
+}
+