[IBM z/OS] runtime locale failure due to lack of native support for stat()

• Key: STDCXX-265
• Type: Bug
• Status: Open
• Priority: Minor
• Assignee: Unassigned
• Reporter: Scott (Yu) Zhong
• Component/s: 22. Localization
• Affects Version/s: 4.1.2, 4.1.3, 4.1.4, 4.2.0, 4.2.1
• Fix Version/s: 4.2.2

Description

Native MVS has filename limitation of 8 characters and does not support stat function.

examples of where stat function is being used is:

facet.cpp:103
---------------------------------------------------------------------------------------
static
void* __rw_mmap (const char* fname, _RWSTD_SIZE_T *size)
{
_RWSTD_ASSERT (0 != fname);
_RWSTD_ASSERT (0 != size);

#if !defined (_MSC_VER)
struct stat sb;
if (stat (fname, &sb) == -1)
#else
struct _stat sb;
if (_stat (fname, &sb) == -1)
#endif
return 0;

*size = sb.st_size;

#if !defined(_MSC_VER)
const int fd = open (fname, O_RDONLY);

if (-1 == fd)
return 0;
---------------------------------------------------------------------------------------

A quick search in the stdlib source found that util/path.cpp, setlocale.cpp, and locale_core.cpp uses stat function. The best alternative I found to stat on native MVS is to use either open/fopen stream as a parameter to fstat function.

The 8 character max filename limitation impedes roguewave's locale to function. This is because some roguewave's locale database file names are longer than 8 character long: LC_COLLATE, LC_MONETARY, LC_NUMERIC, LC_MESSAGES.

Comments

[Martin Sebor]

See also STDCXX-908 for a similar issue with mmap().

[Martin Sebor]

Let's try to see if there's an easy way to work around this in 4.2.2.