Handle fread() errors in examples

2 files changed, 9 insertions, 2 deletions

diff --git a/examples/pugl_shader_demo.c b/examples/pugl_shader_demo.c
index 8f2c2e7..d018db3 100644
--- a/examples/pugl_shader_demo.c
+++ b/examples/pugl_shader_demo.c
@@ -204,7 +204,11 @@ loadShader(const char* const programPath, const char* const name)
   fseek(file, 0, SEEK_SET);
   char* source = (char*)calloc(1, fileSize + 1u);
 
-  fread(source, 1, fileSize, file);
+  if (fread(source, 1, fileSize, file) != fileSize) {
+    free(source);
+    source = NULL;
+  }
+
   fclose(file);
 
   return source;
diff --git a/examples/pugl_vulkan_cpp_demo.cpp b/examples/pugl_vulkan_cpp_demo.cpp
index 69f360d..c901de5 100644
--- a/examples/pugl_vulkan_cpp_demo.cpp
+++ b/examples/pugl_vulkan_cpp_demo.cpp
@@ -692,7 +692,10 @@ readFile(const char* const programPath, const std::string& filename)
   const auto            numWords = fileSize / sizeof(uint32_t);
   std::vector<uint32_t> buffer(numWords);
 
-  fread(buffer.data(), sizeof(uint32_t), numWords, file.get());
+  if (fread(buffer.data(), sizeof(uint32_t), numWords, file.get()) !=
+      numWords) {
+    buffer.clear();
+  }
 
   return buffer;
 }