EACCES, when determining whether rename failed because the target
exists. This was resulting in indefinite looping on Windows 9x if
the source file was locked by another process.
(add_volume_info): Use xstrdup.
(init_environment): Call _access.
(check_windows_init_file): Call _close.
(init_user_info): Call _putenv.
(init_environment): Call _putenv and _strdup.
(init_ntproc): Reset volume info cache on startup.
(unc_volume_file_attributes):
(open_unc_volume): Make arg const.
(gettimeofday): Use struct timeb, not struct _timeb.
(map_w32_filename, read_unc_volume): Fix compile warning.
(sys_strerror): Use sys_nerr instead of _sys_nerr. Use
sys_errlist instead of _sys_errlist.
(get_emacs_configuration_options): New function.
default values for environment variables, based on the
executable's own location.
(map_w32_filename): Handle filenames that are longer than
MAX_PATH.
(sys_socket): Install socket inheritance bug fix from 20.7.
(sys_access): Provide our own implementation which recognizes D_OK.
(is_exec): New function.
(stat): Use it.
(init_environment): Set TMPDIR to an existing directory.
Abort if none of the usual places is available.
(sys_rename): On Windows 95, choose a temp name that
includes the original file's base name and use an explicit loop
rather than calling mktemp. Only attempt to unlink the newname if
the rename fails, rather than second-guessing whether the old and
new names refer to the same file.
conjunction with stat to make handling of file timestamps
consistent.
(convert_from_time_t): Fix calculation of low-order bits.
(sys_unlink): Allow read-only files to be unlinked as on Unix.
Report normal EOF when read fails if nothing in buffer.
Only read more if more remaining.
(check_windows_init_file): New function.
(term_ntproc): Invoke check_windows_init_file.
(getwd): Delete macro.
(startup_dir): New variable.
(getwd): Return directory in which Emacs started.
(init_user_info): Set SHELL environment variable if not set.
(parse_root, get_long_basename, w32_get_long_filename): New functions.
(init_environment): Look for CMDPROXY.
Make sure that PATH and COMSPEC are capitalized in the environment.
Record startup directory.
(get_emacs_configuration, sys_rename): Use OS_WIN95.
(map_w32_filename): Calculate returned string correctly.
(sys_fopen): Use _fdopen.
(sys_link): Support NTFS links.
(sys_rename): Use a long file name for temporary name.
(sys_pipe): Make pipes binary and non-inheritable.
(sys_read, sys_write): Spoof text mode translation for pipes
and sockets.
(hashval): Simplify.
(generate_inode_val): Use long file name version of file.
(stat): Optimize by using active readdir info.
Set fake_inode to 0 for directories.
Set fake_inode to xor of file indexes for files.
Don't use generate_inode_val to set inode value.
(volume_info_data): Renamed from volume_info.
(volume_info, fixed_drives, volume_cache): New variables.
(DRIVE_INDEX, VOLINFO_STILL_VALID): New macros.
(lookup_volume_info, add_volume_info, GetCachedVolumeInformation):
New functions.
(get_volume_info): Use volume_info_data.
Use GetCachedVolumeInformation.
(init_ntproc): No longer restrict to one DOS subprocess.
Use CRT _open and _fdopen.
Cache fixed drive information.
into Windows 95, Windows NT, and W32, respectively.
Expand "win" substring in variables referring to Microsoft Windows
constructs into "windows".
Canonicalize header comments to use same terminology.
that preserve case in filenames.
(sys_rename): Do not delete newname if only changing case. On Windows
95, use our version of mktemp (not the MSVC version) and give
the temp name a long extension to ensure the final rename works
as expected.
not set in environment.
(winsock_inuse) [HAVE_SOCKETS]: New variable.
(have_winsock) [HAVE_SOCKETS]: Obsolete variable removed.
(term_winsock) [HAVE_SOCKETS]: Only unload winsock library if there
are no active sockets still open, and if the cleanup function
succeeds. Return TRUE if winsock is unloaded.
(init_winsock) [HAVE_SOCKETS]: Load winsock if not already loaded,
and return TRUE if winsock support is available. Unload winsock
immediately if new parameter load_now is false. Check that
WSAStartup supports the winsock version we requested.
(set_errno, check_errno, sys_socket, sys_bind, sys_connect, sys_htons,
sys_ntohs, sys_inet_addr, sys_gethostname, sys_gethostbyname,
sys_getservbyname, sys_close, sys_read, sys_write) [HAVE_SOCKETS]:
Check winsock_lib instead of have_winsock to determine if winsock
support is available.
(sys_socket, sys_close) [HAVE_SOCKETS]: Count sockets in use.
(init_ntproc) [HAVE_SOCKETS]: Only load winsock library on startup
if PRELOAD_WINSOCK is set in environment (or registry).
