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* Switching the Cygwin DLL to LGPLv3+, dropping commercial buyout optioncygwin-2_5_2-releaseCorinna Vinschen2016-06-231-3/+0
| | | | | | | | | | | | | | Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause. Everything else stays under GPLv3+. New Linking Exception exempts resulting executables from LGPLv3 section 4. Add CONTRIBUTORS file to keep track of licensing. Remove 'Copyright Red Hat Inc' comments. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Revert "Debug printfs."Corinna Vinschen2016-03-201-1/+0
| | | | | | This reverts commit 9f82de59a07da145c177648fe474f19cd9def7a1. Revert accidental push
* Debug printfs.John Hood2016-03-201-0/+1
| | | | | | | * fhandler.cc (fhandler_base::get_readahead): Add debug code. * fhandler_console.cc (fhandler_console::read): Add debug code. * select.cc (pselect): Add debug code. (peek_console): Add debug code.
* Implement POSIX.1e ACL functionsCorinna Vinschen2016-03-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile.in (DLL_OFILES): Add sec_posixacl.o. (SUBLIBS): Add libacl.a (libacl.a): New rule to create libacl.a. * common.din: Export POSIX ACL functions as well as most libacl.a extensions. * fhandler.h (fhander_base::acl_get): New prototype. (fhander_base::acl_set): Ditto. (fhandler_disk_file::acl_get): Ditto. (fhandler_disk_file::acl_set): Ditto. * include/acl/libacl.h: New file. * include/cygwin/version.h: Bump API minor version. * include/sys/acl.h: Drop including cygwin/acl.h. Accommodate throughout Cygwin. Add POSIX ACL definitions. * sec_acl.cc: Include sec_posixacl.h. Replace ILLEGAL_UID and ILLEGAL_GID with ACL_UNDEFINED_ID where sensible. (__aclcheck): New internal acl check function to be used for Solaris and POSIX ACLs. (aclcheck32): Call __aclcheck. (__aclcalcmask): New function to compute ACL_MASK value. (__aclsort): New internal acl sort function to be used for Solaris and POSIX ACLs. (aclsort32): Call __aclsort. (permtostr): Work directly on provided buffer. (__acltotext): New internal acltotext function to be used for Solaris and POSIX ACLs. (acltotext32): Call __acltotext. (__aclfromtext): New internal aclfromtext function to be used for Solaris and POSIX ACLs. (aclfromtext32): Call __aclfromtext. * sec_posixacl.cc: New file implemeting POSIX ACL functions. * sec_posixacl.h: New internal header. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Reapply POSIX ACL changes.Corinna Vinschen2015-11-181-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - New, unified implementation of POSIX permission and ACL handling. The new ACLs now store the POSIX ACL MASK/CLASS_OBJ permission mask, and they allow to inherit the S_ISGID bit. ACL inheritance now really works as desired, in a limited, but theoretically equivalent fashion even for non-Cygwin processes. To accommodate Windows default ACLs, the new code ignores SYSTEM and Administrators group permissions when computing the MASK/CLASS_OBJ permission mask on old ACLs, and it doesn't deny access to SYSTEM and Administrators group based on the value of MASK/CLASS_OBJ when creating the new ACLs. The new code now handles the S_ISGID bit on directories as on Linux: Setting S_ISGID on a directory causes new files and subdirs created within to inherit its group, rather than the primary group of the user who created the file. This only works for files and directories created by Cygwin processes. 2015-05-29 Corinna Vinschen <corinna@vinschen.de> Reapply POSIX ACL changes. * utils.xml (setfacl): Show new option output. (getfacl): Show new option output. * sec_acl.cc (get_posix_access): Check for Cygwin "standard" ACL. Apply umask, if so. Align comments. * security.cc (set_created_file_access): Fix permission masking by incoming requested file mode. * sec_acl.cc (set_posix_access): Apply mask only in terms of execute bit for SYSTEM and Admins group. * sec_acl.cc (set_posix_access): Don't create DENY ACEs for USER and GROUP entries if they are the same as USER_OBJ or GROUP_OBJ. * fhandler.h (fhandler_pty_slave::facl): Add prototype. * fhandler_tty.cc (fhandler_pty_slave::facl): New method. (fhandler_pty_slave::fchown): Fix uid/gid handling. * sec_acl.cc (set_posix_access): Drop superfluous class_idx variable. Simplify and move around code in a few places. To improve ACL readability, add r/w permissions to Admins ACE appended to pty ACL. Add comment to explain Windows ACE Mask filtering being in the way of creating a real CLASS_OBJ. (get_posix_access): Fake CLASS_OBJ for ptys. Explain why. * security.cc (get_object_attribute): Add S_IFCHR flag to attributes when calling get_posix_access. * sec_acl.cc (set_posix_access): Move merging group perms into owner perms in case of owner == group after mask has been computed. Take mask into account when doing so to avoid unnecessary ACCESS_DENIED_ACE. * sec_acl.cc (get_posix_access): Only set saw_group_obj flag if we saw the ACCESS_ALLOWED_ACE. * fhandler_disk_file.cc (fhandler_disk_file::fchmod): Deliberatly set GROUP_OBJ and CLASS_OBJ perms to new group perms. Add comment to explain why. * security.cc (set_created_file_access): Ditto. * sec_acl.cc (set_posix_access): Replace previous patch. Return EINVAL if uid and/or guid is invalid and not backed by an actual Windows account. * sec_acl.cc (set_posix_access): Workaround owner/group SIDs being NULL. * sec_acl.cc (set_posix_access): Handle files with owner == group. Rephrase switch statement checking against unfiltered a_type value. (get_posix_access): Handle files with owner == group. * sec_acl.cc (get_posix_access): Don't use GROUP_OBJ access to fix up CLASS_OBJ mask on old-style ACLs. Fix a comment. * sec_acl.cc (set_posix_access): Always make sure Admins have WRITE_DAC and WRITE_OWNER permissions. * security.h (create_object_sd_from_attribute): Drop handle parameter from prototype. * security.cc (create_object_sd_from_attribute): Drop handle parameter. Just create the standard POSIXy security descriptor. (set_object_attribute): Accommodate dropped paramter in call to create_object_sd_from_attribute. * fhandler_tty.cc: Ditto, throughout. * fhandler_disk_file.cc (fhandler_disk_file::fchmod): Fix typo in mask computation. * fhandler.cc (fhandler_base::open_with_arch): Call open with mode not umasked. (fhandler_base::open): Explicitely umask mode on NFS here. Call new set_created_file_access rather than set_file_attribute. * fhandler_disk_file.cc (fhandler_disk_file::fchmod): Reimplement setting permissions on filesystems supporting ACLs using the new set_posix_access call. (fhandler_disk_file::fchown): Ditto. (fhandler_disk_file::mkdir): Call new set_created_file_access rather than set_file_attribute. * fhandler_socket.cc (fhandler_socket::bind): Don't umask here. Add WRITE_OWNER access to allow writing group in case of SGID bit set. Call new set_created_file_access rather than set_file_attribute. * path.cc (symlink_worker): Call new set_created_file_access rather than set_file_attribute. * sec_acl.cc (searchace): Un-staticize. (set_posix_access): New, complementary functionality to get_posix_access. (setacl): Implement in terms of get_posix_access/set_posix_access. (get_posix_access): Add handling for just created files requiring their first Cygwin ACL. Fix new_style recognition. Handle SGID bit. For old-style ACLs, ignore SYSTEM and Administrators when computing the {DEF_}CLASS_OBJ perms. * security.cc (get_file_sd): Revamp comment. Change and (hopefully) speed up inheritance processing for just created files. (alloc_sd): Remove. (set_security_attribute): Call set_posix_access instead of alloc_sd. (get_object_attribute): Fix return value. (create_object_sd_from_attribute): Call set_posix_access instead of alloc_sd. (set_file_attribute): Remove. (set_created_file_access): New function implemented in terms of get_posix_access/set_posix_access. * security.h (set_file_attribute): Remove prototype. (set_created_file_access): Add prototype. (searchace): Ditto. (set_posix_access): Ditto. * syscalls.cc (open): Call open_with_arch with mode not umasked. * sec_acl.cc: Change preceeding comment explaining new-style ACLs. Describe how to generate deny ACEs in more detail. Accommodate the fact that a NULL deny ACE is used for {DEF_}CLASS_OBJ, rather than a special Cygwin ACE. Improve further comments. (CYG_ACE_NEW_STYLE): Define. (get_posix_access): Change from Cygwin ACE to NULL deny ACE. Fix CLASS_OBJ handling to generate CLASS_OBJ and DEF_CLASS_OBJ from a single NULL deny ACE if the inheritance flags say so. * sec_helper.cc (well_known_cygwin_sid): Remove. * security.h (well_known_cygwin_sid): Drop declaration. * sec_acl.cc (CYG_ACE_ISBITS_TO_WIN): Fix typo. (get_posix_access): Rename index variable from i to idx. Define only once at top level. * security.cc (add_access_allowed_ace): Drop unused parameter "offset". Accommodate throughout. (add_access_denied_ace): Ditto. * sec_acl.cc: Accommodate above change throughout. * security.h (add_access_allowed_ace): Adjust prototype to above change. (add_access_denied_ace): Ditto. * sec_acl.cc (get_posix_access): Handle multiple ACEs for the owner and primary group of the file. Handle the default primary group ACE as DEF_GROUP_OBJ entry if the directory has the S_ISGID bit set. Add comments. Minor code rearrangements. Preliminary read side implementation of new permission handling. * acl.h (MAX_ACL_ENTRIES): Raise to 2730. Add comment to explain. * sec_acl.cc: Add leading comment to explain new ACL style. Add definitions and macros to use for bits in new Cygwin ACL. (DENY_RWX): New mask value for all temporary deny bits. (getace): Add bool parameter to decide when leaving all bits intact, rather than filtering them per the already set bits. (get_posix_access): New function, taking over functionality to read POSIX ACL from SECURITY_DESCRIPTOR. (getacl): Just call get_posix_access. * sec_helper.cc (well_known_cygwin_sid): Define. * security.cc (get_attribute_from_acl): Remove. (get_info_from_sd): Remove. (get_reg_sd): Call get_posix_access instead of get_info_from_sd. (get_file_attribute): Ditto. (get_object_attribute): Ditto. * security.h (well_known_cygwin_sid): Declare. (get_posix_access): Add prototype. * Throughout, use simpler ACE macros from Windows' accctrl.h. * getfacl.c (main): Special-case SYSTEM and Admins group. Add comments. * setfacl.c: Align more to Linux tool. (delacl): New function to delete acl entries only. (modacl): Drop delete functionality. Add handling of recomputing the mask and default mask values. (delallacl): Rename from delacl. (setfacl): Call delacl in Delete case. Call delallacl in DeleteAll and DeleteDef case. (usage): Accommodate new options. Rearrange and rephrase slightly. (longopts): Emit 'x' in --delete case. Add --no-mask and --mask options. (opts): Add -x and -n options. (main): Handle -d and -x the same. Handle -n and --mask options. Drop handling for -r option. * getfacl.c (usage): Align more closely to Linux version. Add new options -c, -e, -E. Change formatting to accommodate longer options. (longopts): Rename --noname to --numeric. Keep --noname for backward compatibility. Add --omit-header, --all-effective and --no-effective options. (opts): Add -c, -e and -E option. (main): Handle new -c, -e, and -E options. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: Try to fix potential data corruption in pipe writeCorinna Vinschen2015-08-151-0/+40
| | | | | | | | | | | | | | | * fhandler.cc (fhandler_base_overlapped::raw_write): When performing nonblocking I/O, copy user space data into own buffer. Add longish comment to explain why. * fhandler.h (fhandler_base_overlapped::atomic_write_buf): New member. (fhandler_base_overlapped::fhandler_base_overlapped): Initialize atomic_write_buf. (fhandler_base_overlapped::fhandler_base_overlapped): New destructor, free'ing atomic_write_buf. (fhandler_base_overlapped::copyto): Set atomic_write_buf to NULL in copied fhandler. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* * fhandler.h (class fhandler_base): Add was_nonblocking status flag.Corinna Vinschen2015-02-241-3/+12
| | | | | | | | | * fhandler.cc (fhandler_base::set_flags): Set was_nonblocking if the O_NONBLOCK flag has been specified. (fhandler_base_overlapped::close): Check for was_nonblocking instead of for is_nonblocking. Explain why. (fhandler_base::set_nonblocking): Set was_nonblocking if noblocking mode gets enabled.
* * fhandler.cc (fhandler_base::facl): Drop CLASS_OBJ entry.Corinna Vinschen2014-08-281-3/+0
| | | | | | | | | | | | * fhandler_disk_file.cc (fhandler_disk_file::facl): Ditto in noacl case. * sec_acl.cc (getacl): Compute useful fake CLASS_OBJ and DEF_CLASS_OBJ permission bits based on how these values are generated on Linux. Add commants to explain what the code is doing. * security.cc (get_attribute_from_acl): Compute group permission based on the actual primary group permissions and all secondary user and group ACCESS_ALLOWED_ACEs to emulate Linux' behaviour more closely. (check_access): Fix typos im comment. * include/cygwin/acl.h (MIN_ACL_ENTRIES): Redefine as 3.
* * devices.in (dev_cygdrive_storage): Revert mapping to \Device\Null.Corinna Vinschen2013-10-311-30/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dev_storage): Ditto for /dev. * devices.cc: Regenerate. * fhandler.cc (fhandler_base::open_null): New method to open a fake \Device\Null handler. (fhandler_base::open): Fix formatting. Change O_ACCMODE test to a switch statement. Simplify a test which still tested for a now unused create_disposition. * fhandler.h (fhandler_base::open_null): Declare. (fhandler_netdrive::close): Declare. * fhandler_dev.cc (fhandler_dev::open): Open fake \Device\Null handle by just calling new open_null method. * fhandler_disk_file.cc (fhandler_cygdrive::open): Ditto. * fhandler_netdrive.cc (fhandler_netdrive::open): Call open_null rather than setting nohandle. (fhandler_netdrive::close): New method. * fhandler_registry.cc (fetch_hkey): Fix token in RegOpenUserClassesRoot call. Create valid key for HKEY_CURRENT_CONFIG by mapping to real key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Hardware Profiles\Current. (fhandler_registry::open): Set nohandle only when using pseudo registry handle. * fhandler_virtual.cc (fhandler_virtual::opendir): Call open rather than just setting nohandle here. * fhandler_virtual::fstatvfs): Set ST_RDONLY fs flag. * globals.cc (ro_u_null): New readonly UNICODE_STRING for \Device\Null. * path.h (path_conv::set_path): Revert previous change caring for wide_path.
* * external.cc (fillout_pinfo): If start_time is 0, wait a while beforeChristopher Faylor2013-10-241-0/+5
| | | | | | | | | | returning the pinfo structure. * fhandler.cc (fhandler_base::open_setup): Convert from inline. * fhandler.h (fhandler_base::open_setup): Declare. * fhandler_console.cc (fhandler_console::open_setup): Always call fhandler_base::open_setup. * fhandler_tty.cc (fhandler_pty_slave::open_setup): Ditto. (fhandler_pty_master::open_setup): Ditto.
* * devices.in (dev_storage): Map /dev/zero and /dev/full to \Device\Null.Corinna Vinschen2013-10-241-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * devices.cc: Regenerate. * dtable.h (struct dtable): Make fhandler_base friend, rather than fhandler_disk_file. * fhandler.cc (fhandler_base::open_with_arch): Create unique id. (fhandler_base::cleanup): Call del_my_locks. (fhandler_base::fcntl): Handle F_GETLK, F_SETLK and F_SETLKW. * fhandler.h (fhandler_base::get_dev): Return real device number. (fhandler_base::set_unique_id): New inline method. (fhandler_disk_file::lock): Drop declaration. (fhandler_disk_file::get_dev): New method, return pc.fs_serial_number. (fhandler_dev_zero::open): Drop declaration. * fhandler_disk_file.cc (fhandler_disk_file::close): Move del_my_locks call to fhandler_base::open_with_arch. (fhandler_disk_file::fcntl): Move handling of locking commands to fhandler_base::fcntl. (fhandler_base::open_fs): Drop call to NtAllocateLocallyUniqueId. * fhandler_zero.cc (fhandler_dev_zero::open): Remove so that default fhandler_base::open is used to open \Device\Null. * flock.cc (fixup_lockf_after_exec): Finding a single fhandler is enough here. (fhandler_base::lock): Replace fhandler_disk_file::lock. Refuse to lock nohandle devices. Handle read/write test using POSIX flags. Explain why. Never fail on SEEK_CUR or SEEK_END, rather assume position 0, just as Linux. * net.cc (fdsock): Create unique id.
* * fhandler.cc (fhandler_base::fstat): Drop FH_FULL case to alignCorinna Vinschen2013-10-231-3/+0
| | | | /dev/full permissions to Linux.
* * fhandler.h (fhandler_base::cleanup): Mark as extern rather than inline.Christopher Faylor2013-10-221-0/+5
| | | | | | * fhandler_base.cc (fhandler_base::cleanup): Define. * fhandler_tty.cc (fhandler_pty_slave::cleanup): Call fhandler_base::cleanup. (fhandler_pty_master::cleanup): Ditto.
* * fhandler.cc (fhandler_base::close_with_arch): Make sure that the archetype isChristopher Faylor2013-07-031-16/+14
| | | | deleted when close_with_arch is referenced *via* the archetype.
* * fhandler.cc (fhandler_base::lock): Move to flock.cc.Corinna Vinschen2013-06-041-7/+1
| | | | | | | | | | | | | | (fhandler_base::fixup_after_exec): Reset mandatory_locking. * fhandler.h (class fhandler_base): Add mandatory_locking status flag. Add mandatory_locking accessor methods. Accommodate change throughout. (fhandler_base::mand_lock): Declare. (class fhandler_disk_file): Drop in favor of new status flag. * (fhandler_disk_file::fcntl): Call need_fork_fixup if mandatory_locking flag gets set. * flock.cc (fhandler_base::lock): Define here. (flock): Handle mandatory_locking. (lockf): Ditto. (fhandler_base::mand_lock): Define.
* Throughout, (mainly in fhandler*) fix remaining gcc 4.7 mismatchYaakov Selkowitz2013-05-011-6/+6
| | | | | | | | | warnings between regparm definitions and declarations. * smallprint.cc (__small_vswprintf): Conditionalize declaration and setting of l_opt for only x86_64. * spawn.cc (child_info_spawn::worker): Remove unused 'pid' variable. * thread.cc (verifyable_object_isvalid): Temporarily define as non-inline with gcc 4.7+, regardless of target.
* * Merge in cygwin-64bit-branch.Corinna Vinschen2013-04-231-93/+61
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* Throughout, change __attribute__ ((regparm (N))) to just __regN. Throughout,Christopher Faylor2013-01-211-9/+9
| | | | | | | | | | | | | | | | | | | (mainly in fhandler*) start fixing gcc 4.7.2 mismatch between regparm definitions and declarations. * gendef: Define some functions to take @ declaration to accommodate _regN defines which use __stdcall. * gentls_offsets: Define __regN macros as empty. * autoload.cc (wsock_init): Remove unneeded regparm attribute. * winsup.h (__reg1): Define. (__reg2): Define. (__reg3): Define. * advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid warnings from gcc 4.7.2. * exceptions.cc (status_info): Declare struct to use NTSTATUS. (cygwin_exception::dump_exception): Coerce e->ExceptionCode to NTSTATUS. * fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid gcc 4.7.2 warnings. (fhandler_dev_clipboard::read): Ditto.
* * fhandler.cc (fhandler_base::write): Don't attempt to sparsifyCorinna Vinschen2012-12-141-6/+11
| | | | | | | | | | | | | | | | | an already sparse file. Drop check for FILE_SUPPORTS_SPARSE_FILES flag. Explicitely set FILE_ATTRIBUTE_SPARSE_FILE attribute in cached attributes. (fhandler_base::lseek): Only set did_lseek if sparseness is supported. * fhandler_disk_file.cc (fhandler_disk_file::ftruncate): Don't attempt to sparsify an already sparse file. Explicitely set FILE_ATTRIBUTE_SPARSE_FILE attribute in cached attributes. * mount.cc (oopt): Add "sparse" flag. (fillout_mntent): Ditto. * path.h (enum path_types): Add PATH_SPARSE. (path_conv::support_sparse): New method. (path_conv::fs_flags): Constify. (path_conv::fs_name_len): Ditto. include/sys/mount.h: Replace unused MOUNT_MIXED flag with MOUNT_SPARSE.
* whitespace cleanupChristopher Faylor2012-08-161-1/+1
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* Add '#include "cygwait.h"' throughout, where appropriate.Christopher Faylor2012-06-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * DevNotes: Add entry cgf-000012. * Makefile.in (DLL_OFILES): Add cygwait.o. * sigproc.h: Remove cygwait definitions. * cygwait.h: New file. Define/declare Cygwin waitfor functions. * cygwait.cc: Ditto. * exceptions.cc: Include cygwait.h. (handle_sigsuspend): Accommodate change in cancelable_wait arguments. (sigpacket::process): Display thread tls in debugging output. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Use symbolic names for signal and cancel return. * fhandler_console.cc (fhandler_console::read): Ditto. (fhandler_dev_dsp::Audio_out::waitforspace): Ditto. fhandler_dev_dsp::Audio_in::waitfordata): Ditto. * fhandler_fifo.cc (fhandler_fifo::wait): Ditto. * fhandler_serial.cc (fhandler_serial::raw_read): Ditto. * fhandler_tty.cc (fhandler_pty_slave::read): Ditto. * select.cc (cygwin_select): Ditto. * wait.cc (wait4): Ditto. * thread.cc (cancelable_wait): Move definition to cygwait.h. (pthread_cond::wait): Accommodate change in cancelable_wait arguments. (pthread_mutex::lock): Ditto. (pthread_spinlock::lock): Ditto. (pthread::join): Ditto. (pthread::thread_init_wrapper): Display tls in debugging output. (semaphore::_timedwait): Ditto. * thread.h (cw_sig_wait): Move to cygwait.h. (cw_cancel_action): Delete. (cancelable_wait): Move declaration to cygwait.h.
* Christopher Faylor <me.cygwin2012@cgf.cx>Christopher Faylor2012-03-121-1/+9
| | | | | | | | | | | * fhandler.h (wait_return): Add overlapped_nullread. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Detect zero-byte read as a special case. (fhandler_base_overlapped::raw_read): Keep looping when zero-byte read detected without EOF. (fhandler_base_overlapped::raw_write): Quiet gcc warning by adding overlapped_nullread to switch statement even though it will never actually be hit.
* * Throughout, replace usage of w32api's min with MIN from sys/param.h.Corinna Vinschen2012-03-081-2/+3
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* tcgetsid: fix return typeEric Blake2012-02-281-1/+1
| | | | | | | | * include/sys/termios.h (tcgetsid): Fix return type. * termios.cc (tcgetsid): Likewise. * fhandler_termios.cc (fhandler_termios::tcgetsid): Likewise. * fhandler.h (fhandler_base): Likewise. * fhandler.cc (fhandler_base::tcgetsid): Likewise.
* * fhandler.cc (fhandler_base_overlapped::has_ongoing_io): Don't blockChristopher Faylor2012-02-011-1/+1
| | | | | | | GetOverlappedResult since previous IsEventSignalled will have reset the handle. * select.cc (cygwin_select): Remove space before parentheses in syscall debugging output. (pipe_data_available): Streamline if block.
* * syscalls.cc (dup3): Fix debug typo.Christopher Faylor2012-01-311-7/+8
| | | | | | | * fhandler.cc (flush_async_io): Assume only called for writer. Call GetOverlappedResult directly rather than kluding call to has_ongoing_io. (fhandler_base_overlapped::close): Only start flush thread when closing write handle. Only cancel I/O when reading.
* * cygheap.h (cygheap_fdget::~cygheap_fdget): Simplify now that refcnt reportsChristopher Faylor2012-01-221-1/+2
| | | | | | | | | | | reference count changes itself. * fhandler.cc (fhandler_base::reset): Set _refcnt to 0. * fhandler.h (fhandler_base::refcnt): Report refcnt when debugging. * select.cc (cygwin_select): Set return_on_signal to indicate when select should be interrupted. (select_stuff::wait): Keep looping unless return_on_signal is set. * select.h (select_stuff::return_on_signal): New variable. (select_stuff::select_stuff): Zero return_on_signal.
* * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Use correct value inChristopher Faylor2011-12-211-1/+1
| | | | switch statement.
* * fhandler.cc (fhandler_base::close): Move setting isclosed() from here toChristopher Faylor2011-12-181-22/+35
| | | | | | | | | | | | closed(). (fhandler_base_overlapped::close): Correct comment. (fhandler_base_overlapped::destroy_overlapped): Signal overlapped event before closing it to potentially wake up a waiting thread. (fhandler_base_overlapped::wait_overlapped): Expand setting of err when closed to encompass non-signal event. Test for a cancel event before making nonblocking decisions. * syscalls.cc (close): Set closed flag here so that any concurrently executing functions will be notified ASAP.
* * exceptions.cc (set_signal_mask): Remove useless debugging output.Christopher Faylor2011-12-171-6/+7
| | | | | | | | * fhandler.cc (fhandler_base::write): Ditto. (fhandler_base_overlapped::close): Cancel any ongoing I/O before closing. * syscalls.cc (write): Default to always reporting all writes in strace output via syscall_printf. * wait.cc (wait4): Fix debugging output. Use standard syscall leaver output.
* Implement fhandler reference counting.Christopher Faylor2011-12-171-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * cygheap.h (cygheap_fdmanip::release): Make virtual. (cygheap_fdnew::~cygheap_fdnew): New destructor increments reference count when fd has been allocated. (cygheap_fdget::fh): New (old?) field. (cygheap_fdget::cygheap_fdget): Increment reference count when we've found an active fd. Set fh appropriately. (cygheap_fdget::~cygheap_fdget): Decrement reference count when appropriate. Delete fh if reference count goes to zero. (cygheap_fdget::release): New function. Do more bookkeping on release. * dtable.cc (dtable::release): Change from void to boolean return. Only delete the fhandler when its reference count is <= 0 (this should be a fairly unusual case). Return true if fhandler has been deleted. (cygwin_attach_handle_to_fd): Increment reference count when fh is assigned. (dtable::init_std_file_from_handle): Ditto. * dtable.h (dtable::release): Change return to boolean. * fhandler.cc (fhandler_base::fhandler_base): Set new isclosed flag to false. Set _refcnt to zero. (fhandler_base::close): Simplify paranoid debugging output. Set new isclosed() flag. (fhandler_base_overlapped::wait_overlapped): Use isclosed() flag to avoid querying the exception handle. * fhandler.h (fhandler_base::_refcnt): New field. (fhandler_base::refcnt): New function. (fhandler_base::isclosed): Implement. (fhandler_base::fhandler_base): Set isclosed to false. * syscalls.cc: Remove space after function before parentheses for several strace printfs. (dup): Add standard strace "leaver" code. (dup2): Ditto. (dup3): Ditto. (remove): Ditto. (getpid): Ditto. (getppid): Ditto. (lseek64): Fix strace debugging to correctly use %R. * fhandler_termios.cc (fhandler_termios::tcsetpgrp): Avoid sending signals to other processes if we're debugging since it can cause a deadlock with the calling debugger. * exceptions.cc (_cygtls::call_signal_handler): Add debugging-only strace output.
* * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Fix unresolvedChristopher Faylor2011-12-161-1/+1
| | | | access of wores in successful situations.
* * exceptions.cc (_cygtls::call_signal_handler): Fix debugging to not go toChristopher Faylor2011-12-161-13/+19
| | | | | | | | console. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Add temporary kludge to work around problem of make closing a handler while it is being read. * gendef (sigdelayed): Don't call a function if sig has been cleared. * sigproc.h (cygwait): Simplify slightly.
* * cygthread.h (cygthread::name): Very minor formatting tweak.Christopher Faylor2011-12-131-15/+3
| | | | | | | | | | | | | | | | * exceptions.cc (_cygtls::call_signal_handler): Add paranoid debugging output. * sigproc.h (cygwait): Call signal handler when signal is detected and loop as appropriate. * fhandler.h (fhandler_base_overlapped::wait_return): Remove overlapped_signal. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Remove restartable signal accommodations in light of cygwait improvements. (fhandler_base_overlapped::raw_read): Remove now-obsolete signal loop behavior. (fhandler_base_overlapped::raw_write): Ditto. * fhandler_console.cc (fhandler_console::read): Ditto. * fhandler_serial.cc (fhandler_serial::raw_read): Ditto. (fhandler_serial::raw_write): Ditto. * fhandler_tty.cc (fhandler_pty_slave::read): Ditto. * ioctl.cc (ioctl): Add standard syscall introducer and leaver debug output.
* Rename cygWFMO to cygwait throughout and use the magic of polymorphism to "waitChristopher Faylor2011-12-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | for stuff". * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Use simplified arg form of cygwait. * fhandler_console.cc (fhandler_console::read): Ditto. * fhandler_audio.cc (fhandler_dev_dsp::Audio_out::waitforspac): Ditto. (fhandler_dev_dsp::Audio_in::waitfordata): Ditto. * fhandler_fifo.cc (fhandler_fifo::wait): Ditto. * fhandler_serial.cc (fhandler_serial::raw_read): Ditto. (fhandler_serial::raw_write): Ditto. * select.cc (cygwin_select): Ditto. * sigproc.h (cygwait): Rename from cygWFMO. Define two argument and single argument forms of this function. * fhandler_tty.cc (fhandler_pty_slave::open): Use method to query if tty is open. (fhandler_pty_slave::read): Send SIGHUP when master is detected as closed. (fhandler_pty_common::close): Close input_available_event in callers since master may need to signal it first. (fhandler_pty_master::close): Lie and set input_available_event when closing, then close input_available_event. (fhandler_pty_slave::close): Close input_available_event explicitly here. * tty.h (tty::is_master_closed): Declare new method.
* * exceptions.cc (exception::handle): Drop abbreviation for "exception" since IChristopher Faylor2011-12-041-5/+2
| | | | | | | | | | | | | | | | | | | | | never remember what it stands for. (sig_handle_tty_stop): Remove obsolete call to sig_handle_tty_stop. (_cygtls::call_signal_handler): Rework to grab signal information from _main_tls if none is set for _my_tls. Try harder to keep thread locked. (reset_signal_arrived): Delete. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Use new cygWFMO call to wait for an event + standard cygwin stuff. Modify debug output to acccomodate new function. * fhandler_console.cc (fhandler_console::read): Replace WaitForMultipleObjects with cygWFMO. * fhandler_socket.cc (get_inet_addr): Add comment. * gendef (_sigdelayed): Remove call to reset_signal_arrived. * sigproc.cc (_cygtls::signal_exit): Don't close my_readsig here unless we're in the signal thread. (create_signal_arrived): Create signal_arrived as auto-reset so that only one thread is woken when a signal arrives. * sigproc.h (cygWFMO): New function. (reset_signal_arrived): Delete declaration.
* Throughout, remove extra space after function name from debugging output.Christopher Faylor2011-12-031-2/+2
| | | | | | | | | | | | | | | Throughout, change syscalls to report on return values using new %R format option. * smallprint.cc (__small_vsprintf): Add parsing for %R to report on return values and possible errno from syscalls. * errno.cc (errmap): Add PRIVILEGE_NOT_HELD. * fhandler_tty.cc (fhandler_pty_master::setup): When creating a thread use shorter name to reduce debuggging output. * select.cc (start_thread_pipe): Ditto. (start_thread_serial): Ditto. (start_thread_socket): Ditto. (start_thread_mailslot): Ditto. * sigproc.cc (talktome): Ditto.
* * fhandler.cc (fhandler_base::open): Fix comment a bit more.Corinna Vinschen2011-12-031-1/+1
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* * fhandler.cc (fhandler_base::open): Fix typos in comment.Corinna Vinschen2011-12-031-3/+3
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* * sigproc.cc (remove_proc): Don't terminate the currently executing thread.Christopher Faylor2011-11-291-18/+76
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* * cygwin.din (ptsname_r): Export.Christopher Faylor2011-11-071-0/+7
| | | | | | | | | | | | | | | | | | | | | * fhandler.cc (fhandler_base::ptsname_r): Define. * fhandler.h (fhandler_base::ptsname): Delete. (fhandler_base::ptsname_r): Declare. (fhandler_pty_master::ptsname_r): Declare. * fhandler_tty.cc (fhandler_pty_master::ptsname): Delete. (fhandler_pty_master::ptsname_r): New reentrant function derived from previous ptsname. * syscalls.cc (ptsname_r): Implement new function with functionality similar to Linux. (ptsname): Use ptsname_r () to fill out buf. * include/cygwin/stdlib.h (ptsname_r): Declare. * include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 255 to reflect export of ptsname_r. * pinfo.cc (pinfo::wait): Return bool rather than int. * pinfo.h (info::wait): Ditto. (pinfo::reattach): Define !defined(_SIGPROC_H) case for consistency. * sigproc.cc (child_info_spawn::reattach_children): Use correct dwProcessId rather than pid when duplicating handle.
* * fhandler.cc (CHUNK_SIZE): Drop NO_COPY.Corinna Vinschen2011-11-071-1/+1
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* * fhandler.cc (off_current): Define local in fhandler_base::raw_write.Corinna Vinschen2011-11-031-3/+4
| | | | | | | Drop erroneous NO_COPY, add _RDATA to make R/O. (off_append): Ditto. * globals.cc (_RDATA): Move definition from here... * winsup.h: ...to here.
* * fhandler.h (fhandler_pipe::create_selectable): Remove optional argument, takeChristopher Faylor2011-10-301-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | an options argument for CreateNamedPipe/CreateFile. Change handle arguments to expect pointers. (fhandler_fifo::fifo_state): Delete. (fhandler_fifo::dummy_client): Ditto. (fhandler_fifo::open_nonserver): Ditto. (fhandler_fifo::wait_state): Ditto. (fhandler_fifo::raw_write): Ditto. (fhandler_fifo::read_ready): New field. (fhandler_fifo::write_ready): Ditto. (fhandler_fifo::wait): Modify argument. (fhandler_fifo::fifo_name): Add a new argument. (fhandler_fifo::fixup_after_fork): New function. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove initialization of expunged elements. Initialize new handles to NULL. (fhandler_fifo::open_nonserver): Delete. (fnevent): New macro for creating a named event. (fnpipe): New macro for creating a unique named pipe name. (create_pipe): New macro for simplification of named pipe creation. (fhandler_fifo::fifo_name): Use new argument when creating a shared name. (fhandler_fifo::open): Rewrite. Use events to synchronize. (pure_debug_printf): New macro, active only when DEBUGGING. (fhandler_fifo::wait): Rewrite to wait for new fifo events which are supplied as a parameter. (fhandler_fifo::raw_read): Rewrite to use handle mechanism to detect client-side disconnect. (fhandler_fifo::raw_write): Delete. (fhandler_fifo::close): Remove accommodations for expunged fields. Close event handles. (fhandler_fifo::dup): Remove accommodations for expunged fields. Duplicate event handles. (fhandler_fifo::fixup_after_fork): New function. Perform fixups on event handles. (fhandler_fifo::set_close_on_exec): Remove accommodations for expunged fields. Set inheritance for new handle fields. * miscfuncs.cc (CreatePipeOverlapped): Accommodate changes in fhandler_pipe::create_selectable. * tty.cc (tty::not_allocated): Ditto. * pipe.cc (fhandler_pipe::create): Ditto. (fhandler_pipe::create_selectable): Accept an extra open_mode argument. Pass arguments by reference and allow opening one end of the pipe at a time. * sys/strace.h (debug_only_printf): Define new macro which calls debug_printf only when DEBUGGING is defined.
* * dtable.cc (dtable::delete_archetype): Improve debugging output.Christopher Faylor2011-10-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dtable::init_std_file_from_handle): Close console handle early, before initialization. Build up openflags for passing to open_setup, just to be safe. (last_tty_dev): New variable. (fh_last_tty_dev): New macro. (fh_alloc): Try again to keep track of previously opened tty, this time by just saving the device and using that to potentially open an archetype. Avoid setting the "/dev/tty" name if the creation of the fhandler failed. (build_fh_pc): Remove unused second argument. Reorganize how and where the name is set. Set last_tty_dev as appropriate. Avoid a NULL dereference in a debug printf. * dtable.h (build_fh_pc): Reflect removal of second parameter. * fhandler.cc (fhandler_base::reset): Use new '<<' operator to copy pc since it preserves any potentially previously set name. (fhandler_base::set_name): Ditto. * fhandler.h (fhandler_*::clone): Throughout use ccalloc to allocate new fhandler, primarily to make sure that pc field is properly zeroed. (fhandler_termios::last): Eliminate. (fhandler_termios): Remove setting of last. (fhandler_base::~fhandler_termios): Ditto. * fhandler_console.cc (fhandler_console::open): Don't make decisions about opening close-on-exec handles here since it makes no sense for archetypes. (fhandler_console::init): Assume that input handle has already been opened. * fhandler_termios.cc (fhandler_termios::last): Delete. * path.h (path_conv::eq_worker): New function. Move bulk of operator = here. (operator <<): New function. (operator =): Use eq_worker to perform old functionality.
* Throughout change TTY_* to PTY_*, tty_* to pty_*, and ttym_* to ptmx_*.Christopher Faylor2011-10-201-0/+11
| | | | | | | | | | | | | | | | * devices.cc: Regenerate. * dtable.cc: (fh_alloc): Preserve /dev/tty name when that's what we opened. (build_fh_pc): Preserve any existing name. * fhandler.cc (fhandler_base::open_with_arch): Ditto. * fhandler_tty.cc (fhandler_pty_master::fhandler_pty_master): Force the name to /dev/ptmx while preserving other pty master device information. * path.h (cfree_maybe): New macro. (path_conv::operator =): Free any allocated strings in target. (path_conv::free_strings): Delete unused function. * sigproc.cc (proc_terminate): Remove previous accommodation for execed processes since it didn't have the desired effect. Change comment to a FIXME. * spawn.cc (chExeced): Mark NO_COPY. (exe_suffixes): Ditto.
* * cygerrno.h (__set_errno): Modify debugging output to make searching straceChristopher Faylor2011-10-151-12/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | logs easier. Throughout, change /dev/tty* to /dev/pty*. Throughout, add flags argument to fhandler_*::dup methods. * devices.in: Rename (temporarily?) /dev/ttyN to /dev/ptyN. Add /dev/ptymN devices for pty masters. * devices.cc: Regenerate. * devices.h (MAX_CONSOLES): Set to max number supported by devices.in. (fh_devices::FH_PTMX): Rename from FH_PTYM. (device::operator int): Return by reference. * dtable.cc (fh_alloc): Take pc as an argument rather than just the device. This makes debugging easier since more information is available. Actually implement handling for already-allocated pty master devices. Make different decisions when generating fhandler for not-opened devices. Add kludge to deal with opening /dev/tty. (cnew_no_ctor): New macro. (build_fh_pc): Make debugging output more verbose. Use new clone() fhandler interface to duplicate archetypes. Reset last term opened. (dtable::dup_worker): Use Use new clone() fhandler interface to duplicate archetypes. Pass flags to child dup handler. (dtable::dup3): Set O_NOCTTY flag if newfd is not stdin/stdout/stderr. * fhandler.cc (fhandler_base::reset): Rename from operator =() and reduce functionality and sense of copy direction. (fhandler_base::open_with_arch): Use published interface to query io_handle(). Use new copyto() fhandler method to copy from/to found archetype. * fhandler.h: Throughout, delete size(), add copyout, clone, and fhandler_* (void *) methods. (fhandler_base::reset): Rename from operator =(). (fhandler_termios::is_dev_tty): Delete. (fhandler_termios): change "protected" region to "private". (fhandler_termios::is_dev_tty): Delete. (fhandler_termios): Rearrange protected/public. (fhandler_termios::fhandler_termios): Remember last fhandler_termios "opened". (fhandler_termios::~fhandler_termios): Forget last fhandler_termios opened. (ioctl): Rename from ioctl_termios. Take a void * argument. Reflect argument change in pinfo::set_ctty. (fhandler_console::dup): Declare new function. Set ctty here if appropriate. (fhandler_pty_master::from_master): Privatize. (fhandler_pty_master::to_master): Ditto. (fhandler_pty_master::dwProcessId): Ditto. (fhandler_pty_master::fhandler_pty_master): Add an `int' argument. (fhandler_pty_master::open_setup): Declare new function. (fhandler_pty_master::~fhandler_pty_master): Declare new method. (fhandler_nodevice): Remove commented out function declaration. * fhandler_console.cc: Use get_ttyp() instead of tc() throughout. (fhandler_console::dup): Define new function to set controlling ctty on dup, as appropriate. (fhandler_console::ioctl): Reflect ioctl_termios name change. (fhandler_console::setup): Rename from get_tty_stuff. (fhandler_console::open_setup): Reflect argument change in pinfo::set_ctty. (fhandler_console::fhandler_console): Set _tc here. * fhandler_termios.cc (handler_termios::ioctl): Rename. Take a void * arg like other ioctl functions. * fhandler_tty.cc (fhandler_pty_slave::dup): Call myself->set_ctty to potentially reset the controlling terminal. (fhandler_pty_slave::ioctl): Reflect name/arg change for ioctl_termios. (fhandler_pty_slave::fhandler_pty_slave): Take a "unit" argument. Call setup() here so that we will know the unit number of this fhandler as soon as possible. Set the unit as appropriate. (handler_pty_master::open): Move most stuff to constructor and open_setup. (handler_pty_slave::open_setup): Reflect argument change in pinfo::set_ctty. (handler_pty_master::open_setup): Define new function. (fhandler_pty_master::cleanup): Clear handles as a flag that the destructor does not have to do "close" operations. (fhandler_pty_master::close): Ditto. (fhandler_pty_master::~fhandler_pty_master): Define new method. (fhandler_pty_master::ioctl): Reflect name/arg change for ioctl_termios. (fhandler_pty_master::setup): Allocate tty here. Rely on handles being returned from allocated test rather than opening them here. Avoid setting _need_nl here since it is already zeroed in the constructor. Set up device information with DEV_TTYM_MAJOR. * path.h (path_conv &operator =): Take a const argument. (path_conv::dup): Ditto. (pathconv_arg::PC_OPEN): New enum. (pathconv_arg::PC_CTTY): Ditto. (path_types::PATH_CTTY): Ditto. (path_types::PATH_OPEN): Ditto. (path_conv::isopen): New method. (path_conv::isctty_capable): Ditto. * path.cc (path_conv::check): Set PATH_OPEN and PATH_CTTY as appropriate. * pipe.cc (fhandler_pipe::open): Use copyto to copy pipe handle. * syscall.cc (open): Reinstate fd > 2 check to disallow resetting ctty on non-std* handles. * tty.cc (tty_list::allocate): Pass out handles for allocated tty. use `not_allocated' to find unallocated ttys. Avoid keeping the lock since the allocation of the tty should be sufficient to prevent multiple access. (tty::not_allocated): Clarify comment. Rename. Return handles when an unused tty is found. Simply test for existing tty. (tty::exists): Rewrite to use `not_allocated'. * tty.h (NTTYS): Reset down to actual number supported by devices.in. (tty::not_allocated): Declare new function. (tty_list::allocate): Pass out read/write tty handles. Zero them when not found. * fhandler_proc.cc: Reflect name change from FH_PTYM -> FH_PTMX. * pinfo.h (pinfo::set_ctty): Reduce/reorder arguments passed in. * pinfo.cc (pinfo::set_ctty): Ditto. Just use tc() built into the passed-in fhandler_termios pointer. Return true if ctty is assigned. * syscalls.cc (open): Call build_fh_pc with PC_OPEN flag. Set PC_CTTY if appropriate. (stat_worker): Remove is_dev_tty () stuff.
* * cygwin.din: Remove some _tc* exports. Add tcgetsid().Christopher Faylor2011-10-111-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * dtable.cc (fh_alloc): Revert ill-advised setting of major/minor. Use new is_dev_tty to remember that this device was opened as /dev/tty. * fhandler.cc (fhandler_base::fstat): Remove leftover debugging statement. (fhandler_base::tcgetsid): New function. * fhandler.h ((fhandler_base::tcgetsid): Declare new function. (fhandler_base::is_dev_tty): Ditto. (fhandler_termios::opened_as_dev_tty): Declare new field. (fhandler_termios::is_dev_tty): Declare new function. (fhandler_termios::tcgetsid): Ditto. (fhandler_pty_common::use_archetype): Move here from subclass. (fhandler_pty_slave::use_archetype): Move up. (fhandler_pty_master::use_archetype): Ditto. * fhandler_console.cc (fhandler_console::ioctl): Rename second argument from `buf' to `arg' for consistency. Call ioctl_termios for common fhandler_termios ioctl handling. * fhandler_tty.cc (fhandler_pty_slave::ioctl): Call ioctl_termios for common fhandler_termios ioctl handling. (fhandler_pty_master::ioctl): Ditto. * fhandler_termios.cc (fhandler_termios::tcgetsid): Implement new function. (fhandler_termios::ioctl_termios): Ditto. Implements TIOCSCTTY handling. * syscalls.cc (stat_worker): Set /dev/tty device info when appropriate. * termios.cc (tcgetpgrp): Avoid extraneous "isatty" check. (tcgetsid): Implement new function. * include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 253. * include/sys/termios.h (TIOCSCTTY): Define.
* * fhandler.cc (fhandler_base::open): Fix typo in comment.Corinna Vinschen2011-08-271-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | (fhandler_base::close): Move call to del_my_locks from here... * fhandler_disk_file.cc (fhandler_disk_file::open): ...to here. * flock.cc (struct lockfattr_t): New type. (lockf_t::close_lock_obj): New method, use throughout. (lockf_t::create_lock_obj_attr): New method. (lockf_t::create_lock_obj): Use create_lock_obj_attr method. Handle STATUS_OBJECT_NAME_COLLISION in F_FLOCK case gracefully. Add lengthy comments to explain why and how. (lockf_t::open_lock_obj): Use create_lock_obj_attr method. (lockf_t::del_lock_obj): Call NtSetEvent rather than SetEvent for symmetry. (fhandler_disk_file::lock): Define n only where it's used. Call need_fork_fixup only if call was successful. Handle EINTR and ECANCELED return values from lf_setlock. (lf_setlock): Drop WAIT_UNLOCKED and WAIT_PROC_EXITED. Don't wait for event object handle count to become <= 1 in F_LOCK case. Simplify WFMO return value handling. Don't handle signal and cancel events here; just return with appropriate error code instead. (lf_getblock): Ignore locks for which the handle can't be opened. Use IsEventSignalled. * ntdll.h (STATUS_INVALID_INFO_CLASS): Undef if defined elsewhere to make sure the definition is casted to NTSTATUS. (STATUS_INVALID_HANDLE): Define and ditto. (STATUS_OBJECT_NAME_COLLISION): Define. (NtSetEvent): Declare.
* * fhandler.cc (fhandler_base::open): Never open files withCorinna Vinschen2011-08-251-12/+30
| | | | | | FILE_OVERWITE/FILE_OVERWRITE_IF. Set file size to 0 explicitely if regular, existing file has been opened for writing with O_TRUNC flag set. Explain why.
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-16 23:08:21 +0000