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Enhance error diagnostics in bundle extraction when fwrite fails #120677

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Enhance error diagnostics in bundle extraction when fwrite fails #120677

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6fed391
Initial plan
Copilot Oct 13, 2025
5ee1b7e
Add enhanced error diagnostics for bundle extraction failures
Copilot Oct 13, 2025
38a8c4d
Address PR feedback: simplify error reporting and remove fclose checking
Copilot Oct 14, 2025
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10 changes: 8 additions & 2 deletions src/native/corehost/bundle/extractor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
#include "pal.h"
#include "utils.h"
#include <cinttypes>
#include <cerrno>

#ifdef __sun
#include <alloca.h>
Expand Down Expand Up @@ -156,10 +157,13 @@ void extractor_t::extract(const file_entry_t &entry, reader_t &reader)
}

int produced = bufSize - zStream.availOut;
if (fwrite(buf, 1, produced, file) != (size_t)produced)
size_t written = fwrite(buf, 1, produced, file);
if (written != (size_t)produced)
{
CompressionNative_InflateEnd(&zStream);
int err = errno;
trace::error(_X("I/O failure when writing decompressed file."));
trace::error(_X("Expected: %d bytes, Written: %zu bytes, errno: %d, %s"), produced, written, err, pal::strerror(err).c_str());
throw StatusCode::BundleExtractionIOError;
}

Expand All @@ -179,8 +183,10 @@ void extractor_t::extract(const file_entry_t &entry, reader_t &reader)

if (extracted_size != cast_size)
{
int err = errno;
trace::error(_X("Failure extracting contents of the application bundle. Expected size:%" PRId64 " Actual size:%zu"), size, extracted_size);
trace::error(_X("I/O failure when writing extracted files."));
trace::error(_X("I/O failure when writing extracted files. errno: %d, %s"), err, pal::strerror(err).c_str());
fclose(file);
throw StatusCode::BundleExtractionIOError;
}

Expand Down
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