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Merge pull request #561 from zeux/file-size

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Fix get_file_size behavior inconsistency for folders
This commit is contained in:
Arseny Kapoulkine 2023-04-21 12:52:17 -07:00 committed by GitHub
commit f4b89469b3
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2 changed files with 17 additions and 2 deletions
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17
src/pugixml.cpp
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@ -40,6 +40,11 @@
// For placement new
#include <new>
// For load_file
#if defined(__linux__) || defined(__APPLE__)
#include <sys/stat.h>
#endif
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable: 4127) // conditional expression is constant
@ -4759,7 +4764,17 @@ PUGI_IMPL_NS_BEGIN
// we need to get length of entire file to load it in memory; the only (relatively) sane way to do it is via seek/tell trick
PUGI_IMPL_FN xml_parse_status get_file_size(FILE* file, size_t& out_result)
{
#if defined(PUGI_IMPL_MSVC_CRT_VERSION) && PUGI_IMPL_MSVC_CRT_VERSION >= 1400
#if defined(__linux__) || defined(__APPLE__)
// this simultaneously retrieves the file size and file mode (to guard against loading non-files)
struct stat st;
if (fstat(fileno(file), &st) != 0) return status_io_error;
// anything that's not a regular file doesn't have a coherent length
if (!S_ISREG(st.st_mode)) return status_io_error;
typedef off_t length_type;
length_type length = st.st_size;
#elif defined(PUGI_IMPL_MSVC_CRT_VERSION) && PUGI_IMPL_MSVC_CRT_VERSION >= 1400
// there are 64-bit versions of fseek/ftell, let's use them
typedef __int64 length_type;

2
tests/test_document.cpp
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@ -589,7 +589,7 @@ TEST(document_load_file_wide_out_of_memory)
CHECK(result.status == status_out_of_memory || result.status == status_file_not_found);
}
#if defined(__APPLE__)
#if defined(__linux__) || defined(__APPLE__)
TEST(document_load_file_special_folder)
{
xml_document doc;