using my_wcstombs.
(get_user_folder): Remove.
(do_sysfolders): Use get_special_folder instead of get_user_folder.
Fetch system paths as WCHAR and convert using my_wcstombs.
CW_SET_EXTERNAL_TOKEN.
Add new enum CW_TOKEN_IMPERSONATION, CW_TOKEN_RESTRICTED.
* cygheap.h (cyguser): New flags ext_token_is_restricted,
curr_token_is_restricted and setuid_to_restricted.
* external.cc (cygwin_internal): Add CW_SET_EXTERNAL_TOKEN.
* sec_auth.cc (set_imp_token): New function.
(cygwin_set_impersonation_token): Call set_imp_token ().
* security.h (set_imp_token): New prototype.
* spawn.cc (spawn_guts): Use CreateProcessAsUserW if restricted token
was enabled by setuid(). Do not create new window station in this case.
* syscalls.cc (seteuid32): Add handling of restricted external tokens.
Set HANDLE_FLAG_INHERIT for primary token.
(setuid32): Set setuid_to_restricted flag.
* uinfo.cc (uinfo_init): Do not reimpersonate if restricted token was
enabled by setuid (). Initialize user.*_restricted flags.
* hires.h (hires_ms): Change initime_us to initime_ns, with 10x
more resolution.
(hires_ms::nsecs): New prototype.
(hires_ms::usecs, hires_ms::msecs, hires_ms::uptime): Adjust.
* times.cc (systime_ns): New helper function.
(hires_ms::prime): Use it for more resolution.
(hires_ms::usecs): Change to...
(hires_ms::nsecs): ...with more resolution.
(clock_gettime): Use more resolution.
(systime): Rewrite in terms of systime_ns.
(timespec_to_filetime): Rewrite math to reflect true operation.
* fhandler_disk_file.cc (utimens_fs): Use higher resolution.
* fhandler_termios.cc (fhandler_termios::tcgetpgrp): Only return
valid pgid if tty is controlling tty. Set errno to ENOTTY and
return -1 otherwise.
(fhandler_pty_master::tcgetpgrp): New function. Return 0 for
master side of pty if it's not the controlling tty of the process.
call initial_setlocale from here.
* syscalls.cc (initial_setlocale): Set internal charset and revert
application locale to "C".
(setlocale): Don't set Cygwin's internal charset here.
str_to_con.
* fhandler_console.cc (dev_console::con_to_str): Simplify. Always
default to the current internal locale.
(dev_console::get_console_cp): Always use codepage 437 for alternate
charset.
(dev_console::str_to_con): Constify charset parameter.
(fhandler_console::write_normal): Always use codepage 437 for alternate
charset. Otherwise always default to the current internal locale.
Replace ASCII SO with ASCII CAN.
* strfuncs.cc: Tweka comments according to below changes.
(sys_cp_wcstombs): Constify charset parameter. Convert all wchar_t
values in the Unicode private use area U+F0xx to the singlebyte
counterpart. Drop special handling creating ASCII SO sequence from
U+DCxx value. Rearrange for performance. Replace ASCII SO with
ASCII CAN.
(sys_cp_mbstowcs): Constify charset parameter. Replace ASCII SO with
ASCII CAN. Drop special case for U+DCxx ASCII SO sequences. Always
create a replacement from the Unicode private use area U+F0xx for
invalid byte values in a multibyte sequence. Do the same for wchar_t
values from the U+F0xx range to make them roundtrip safe.
* wchar.h (sys_cp_wcstombs): Constify charset parameter.
(sys_cp_mbstowcs): Ditto.
* dcrt0.cc (dll_crt0_1): Call setlocale (LC_CTYPE, "") here, just
before resetting application locale to "C".
* environ.cc (environ_init): Drop code setting locale here.
* syscalls.cc (check_codepage): Break out check for required codepage
from internal_setlocale.
(internal_setlocale): Just convert CWD and $PATH from old charset to
new charset and set internal charset.
(setlocale): Change accordingly. Don't require LC_ALL or LC_CTYPE to
store old locale value. Always call internal_setlocale if charset
changed due to locale environment changes.
second halves to unambiguous ASCII SO sequence. When converting
chars invalid in current codepage to ASCII SO sequence, make
sure to check for surrogate pair second half only if ct least
one wide characters is left. Decrement nwc if valid second half has
been converted.
(sys_cp_mbstowcs): Improve ASCII SO handling. Never break from loop
if invalid character has been found. Recognize ASCII SO sequence
representing originally invalid mulitbyte char converted into a
lone surrogate pair second half. Convert accordingly.
returning pointer to posix path.
(cwdstuff::reset_posix): Convert to non-inline method taking a wchar_t
pointer.
* path.cc (cwdstuff::set): Revert change from 2009-05-13. Set posix
to valid incoming path again.
(cwdstuff::reset_posix): New implementation setting posix path from
incoming wchar_t path. Explain usage.
(cwdstuff::get_posix): Drop implementation.
(cwdstuff::get): Drop special case to handle empty posix path.
* syscalls.cc (internal_setlocale): Store old posix cwd as wide char
path. Restore posix cwd using new charset. Explain why.
function to zero to avoid transferring to incorrect location.
(_cygtls::call_signal_handler): Don't transfer to handler if there is no
handler to transfer to.
* include/wtsapi32.h (WTSQuerySessionInformationA,
WTSQuerySessionInformationW, WTSQuerySessionInformation, WTSFreeMemory):
Moved to (_WIN32_WINNT >= 0x0500) guard.
(thanks to Pierre Ossman)
* path.cc (symlink_info::check_reparse_point): Return -1 for volume
mount points. Explain why.
(symlink_info::check): Call fs.update again for volume mount points.
Explain why.
(run_dtors): New wrapper function which avoids calling dtors more than once.
* dll_init.cc (dll_global_dtors): Use dll.run_dtors wrapper.
(dll_list::detach): Ditto.
(dll_list::alloc): Set has_dtors flag.
whether set_name should be called or not.
(dtable::dup_worker): Call build_fh_pc with new second parameter set
to false. Explain why. If fhandler's dup failed, delete rather than
cfree newfh and set newfh to NULL to indicate failure correctly.
* dtable.h (build_fh_pc): Change declaration according to above change.
Default set_name parameter to true.
* mmap.cc (mmap_record::free_fh): Delete rather than cfree fh.
ill-advised attempt to optimize "." and ".." handling by checking for
specific position in directory listing. Explain why.
(fhandler_disk_file.cc (fhandler_disk_file::readdir): Ditto.
Special-case opening file on NFS to fetch inode number and add longish
comment to explain why.
AF_LOCAL sockets.
(fhandler_socket::getpeername): Ditto.
* net.cc (socketpair): Don't set sun_path and peer_sun_path to
make sure getsockname and getpeername return the correct values
for AF_LOCAL sockets.
then constant size. Truncate returned data, but return full address
length as per POSIX.
(fhandler_socket::getsockname): Truncate returned data, but return full
address length as per POSIX.
(fhandler_socket::getpeername): Ditto.
(fhandler_socket::set_peer_sun_path): New method.
(fhandler_socket::get_peer_sun_path): New method.
* fhandler_socket.cc (fhandler_socket::fhandler_socket): Initialize
peer_sun_path to NULL.
(fhandler_socket::~fhandler_socket): Free peer_sun_path if necessary.
(fhandler_socket::dup): Duplicate peer_sun_path.
(fhandler_socket::accept): Ditto. Return fake unbound peer content
and len in case of AF_LOCAL sockets.
(fhandler_socket::getsockname): Always use local sockaddr_storage to
store socket address and copy over to incoming address. Handle every
namelen correctly per POSIX.
(fhandler_socket::getpeername): Ditto. Add code path to return
correct value for AF_LOCAL sockets.
(fhandler_socket::set_peer_sun_path): New method.
* net.cc (socketpair): Set peer_sun_path to empty string, just like
sun_path.
name isn't found and return 0 to allow searching to proceed. Always
return 0 or 1, not -1.
(enum_groups): Avoid error message if given group name isn't found.
* mkpasswd.c (enum_users): Ditto.
the native NT socket device.
(dtable::init_std_file_from_handle): Remove unused tmp_pathbuf
variable. Move check for sockets into FILE_TYPE_PIPE clause.
Rely on handle_to_fn having recognized socket, or check if
getsockopt works to accommodate NT4 shortcoming.
(handle_to_fn): Use tmp_pathbuf for OBJECT_NAME_INFORMATION
buffer and simplify code due to that. Check name returned by
NtQueryObject for socket device.
Corinna Vinschen
Eric Blake
Christopher Faylor
Charles Wilson
Dave Korn
Keith Marshall
Chris Sutcliffe