2003-02-04 Thomas Pfaff * syscalls.cc (struct system_cleanup_args): New struct. (system_cleanup): New function. (system): Use pthread_cleanup_push and _pop to save and restore signal handlers and sigprocmask. 2003-02-04 Corinna Vinschen * path.cc (symlink): Create security attributes so that only the user can modify the symlink. * security.cc (set_security_attribute): Remove symlink special handling. 2003-02-04 Pierre Humblet * grp.cc (internal_getgroups): Do not return without closing the process handle. 2003-02-04 Pierre Humblet * security.h (class cygpsid): New class. (class cygsid): Use cygpsid as base. Remove members psid, get_id, get_uid, get_gid, string, debug_printf and the == and != operators. (cygsidlist::clear_supp): Only do work if setgroups has been called. * sec_helper.cc: Define sid_auth NO_COPY. (cygpsid::operator==): New operator. (cygpsid::get_id): New function. (cygpsid::string): New function. (cygsid::string): Delete. (cygsid::get_id): Delete. * pwdgrp.h: Change arguments of internal_getpwsid, internal_getgrsid and internal_getgroups to cygpsid. * passwd.cc (internal_getpwsid): Change argument from cygsid to cygpsid. * grp.cc (internal_getgrsid): Ditto. (internal_getgroups): Ditto. 2003-02-03 Christopher Faylor Eliminate most unneeded this-> pointers throughout. 2003-02-03 Pierre Humblet * security.h: Add third argument to set_process_privilege. * autoload.cc: Add OpenThreadToken. * sec_helper.cc (set_process_privilege): Add and use use_thread argument. * security.cc (alloc_sd): Modify call to set_process_privilege. Remember the result in each process. If failed and file owner is not the user, fail. 2003-02-03 Corinna Vinschen * fhandler_socket.cc (fhandler_socket::recvfrom): Return buffer length and don't set errno in case of WSAEMSGSIZE error. (fhandler_socket::recvmsg): Ditto. 2003-02-01 Christopher Faylor * grp.cc (getgrent32): Only refresh group entries when at beginning. (internal_getgrsid): Only refresh if uninitialized. (internal_getgrent): Ditto. * passwd.cc (getpwent): Only refresh passwd entries when at beginning. (pwdgrp::read_passwd): linebuf *cannot* be NO_COPY. (internal_getpwsid): Only refresh if uninitialized. (getpass): No need to refresh passwd data here. * pwdgrp.h (refresh): Eliminate default. 2003-01-31 Christopher Faylor * dlfcn.cc (dlerror): Only report load errors once per error. 2003-01-31 Christopher Faylor * fhandler_serial.cc (fhandler_serial::open): Avoid extraneous setting of res. * termios.cc (tcsetattr): Correctly record errno after tcsetattr call. 2003-01-31 Troy Curtiss * fhandler_serial.cc (fhandler_serial::tcsetattr): Add error-checking so that if any Win32 SetComm*() calls fail, errno gets set to EINVAL and tcsetattr() returns -1. Catch invalid bitrates, mostly. If baud rate setting is B0, just drop DTR and leave Win32 DCB bitrate as-is since 0 is not a valid Win32 setting. (fhandler_serial::tcgetattr): If DTR is low, populate the bitrate as B0, otherwise get it from the DCB. 2003-01-31 Christopher Faylor * passwd.cc (pwdgrp::read_passwd): linebuf *must* be static (from Pierre Humblet). * pwdgrp.h (pwdgrp::refresh): Avoid calling read function if we already have lock since that means we are in the process of reading the file. 2003-01-31 Jason Tishler * shared.cc (shared_info::heap_chunk_size): Use correct variable when reading HKLM. 2003-01-30 Christopher Faylor * fhandler_registry.cc (fhandler_registry::exists): Fix off-by-one error when inspecting path. 2003-01-29 Christopher Faylor * lib/getopt.c: Allow environment variable control of POSIXLY_INCORRECT behavior. 2003-01-28 Corinna Vinschen * fhandler_socket.cc (fhandler_socket::accept): On successful execution set connection state of returned socket to CONNECTED. 2003-01-27 Christopher Faylor * passwd.cc (pwdgrp::parse_passwd): Be more unforgiving about non-numeric fields. 2003-01-26 Christopher Faylor * uinfo.cc (pwdgrp::next_num): Remove check for NULL since it is no longer a valid return from next_str. (pwdgrp::add_line): Duh. Revert to use strchr. 2003-01-26 Christopher Faylor * string.h (strechr): New function. * uinfo.cc (pwdgrp::next_str): Search only for input char in string. Return EOS on failure. Don't check for NULL since it shouldn't be possible. (pwdgrp::add_line): Revert to replacing '\n' in input line with '\0'. (pwdgrp::next_num): Pass explicit separator character to next_str. * grp.cc (pwdgrp::parse_group): Ditto. * passwd.cc (pwdgrp::parse_passwd): Ditto. Revamp test for garbage input. * pwdgrp.h (pwdgrp::next_str): Don't use default parameter. 2003-01-26 Christopher Faylor * uinfo.cc (pwdgrp::load): Regularize strace output. Add warning for CreateFile failure. 2003-01-26 Christopher Faylor * passwd.cc (pwdgrp::parse_passwd): Eliminate use of memset. The structure should always be completely filled out. * grp.cc (pwdgrp::parse_group): Ditto. 2003-01-26 Christopher Faylor * grp.cc (pwdgrp::parse_group): Fix off-by-one problem in allocating gr_mem. 2003-01-26 Christopher Faylor * include/sys/strace.h (paranoid_printf): Define as not being part of "all" output. 2003-01-25 Christopher Faylor * pwdgrp.h (pwdgrp::next_num): Rename from next_int. Returns true/false if parse operation succeeded. (pwdgrp::reparse): Remove. (pwdgrp::raw_ptr): New function. Returns pointer in line. (pwdgrp::next_num): New functions for parsing other than unsigned long. * grp.cc (pwdgrp::parse_group): Reinstate previous parsing behavior. Don't fill in fields with NULL and assign empty gr_mem to known pointer rather than doing a pointless calloc. Streamline gr_mem parsing. Don't increment curr_lines here. * passwd.cc (pwdgrp::parse_passwd): Use new behavior of next_num. Don't increment curr_lines here. * uinfo.cc (pwdgrp::next_str): Keep returning EOL if out of data. (pwdgrp::reparse): Remove. (pwdgrp::next_num): Rename from next_int. Return bool indicating success of parse, argument returns value parsed. (pwdgrp::add_line): Increment curr_lines here on successful parse. (pwdgrp::load): (from Pierre Humblet) Don't return status. Just report it here. 2003-01-25 Christopher Faylor * pwdgrp.cc (pwdgrp::reparse): Declare. * uinfo.cc (pwdgrp::reparse): Define. * grp.cc (pwdgrp::parse_group): Use reparse. 2003-01-25 Pierre Humblet * syscalls.cc (seteuid32): On Win95 get the pw entry. If it exists update the euid and call cygheap->user.set_name. Remove special handling of ILLEGAL_UID. (setgid32): Add a debug_printf. On Win95, always set the egid. Remove special handling of ILLEGAL_GID. Do not compare gid and gr_gid. * child_info.h (class cygheap_exec_info): Remove uid. * spawn.cc (spawn_guts): Do not set ciresrv.moreinfo->uid. * dcrto.cc (dll_crt0_1): Always call uinfo_init. * uinfo.cc (uinfo_init): Reorganize and close handle if needed. (cygheap_user::ontherange): Do not call internal_getpwnam if pw is NULL. 2003-01-24 Christopher Faylor * fhandler_console.cc (fhandler_console::send_winch_maybe): Reset scroll region if size changes. 2003-01-24 Pierre Humblet Jason Tishler * cygwin.din: Export setreuid32, setreuid, setregid32, setregid. * syscalls.cc (setreuid32): New function. (setreuid): Ditto. (setregid32): Ditto. (setregid): Ditto. * include/cygwin/version.h: Bump API minor number. 2003-01-23 Christopher Faylor * pwdrp.h (pwdgrp::refresh): Lock entire test prior to reading. 2003-01-23 Christopher Faylor * grp.cc (pwdgrp::parse_group): Eliminate arg and use class member instead. Use next_str and next_int to parse arguments. * passwd.cc (pwdgrp::parse_passwd): Ditto. (grab_string): Eliminate. (grab_int): Ditto. * pwdgrp.h (pwdgrp::parse): Eliminate input arg. (pwdgrp::parse_passwd): Reflect above change. (pwdgrp::parse_group): Reflect above change. (pwdgrp::next_str): New function. (pwdgrp::next_int): Ditto. (pwdgrp::gets): Eliminate. * uinfo.cc (pwdgrp::next_str): New function. (pwdgrp::next_int): Ditto. (pwdgrp::add_line): Subsume gets. (pwdgrp::gets): Eliminate. (pwdgrp::load): Just call add_line to parse input buffer. 2003-01-22 Thomas Pfaff * include/pthread.h (PTHREAD_MUTEX_RECURSIVE): Revert changes from 2003-01-09 mutex patch. (PTHREAD_MUTEX_ERRORCHECK): Ditto. 2003-01-22 Corinna Vinschen * cygrun.c: Move from here to ../testsuite. * Makefile.in: Remove cygrun.exe dependencies. 2003-01-21 Jason Tishler * cygwin.din: Export nanosleep(). * signal.cc (nanosleep): New function. (sleep): Move old functionality to nanosleep(). Call nanosleep(). (usleep): Remove old functionality. Call nanosleep(). * include/cygwin/version.h: Bump API minor number. 2003-01-21 Christopher Faylor * grp.cc: Call gr.refresh() rather than doing isunitialized tests throughout. (gr): Use constructor (sigh). (pwdgrp::parse_group): Rename from parse_grp. (pwdgrp::read_group): Rename from read_etc_group. Just call gr.load with a single argument. * passwd.cc: Call pr.refresh() rather than doing isunitialized tests throughout. (pr): Use constructor (sigh). (pwdgrp::parse_passwd): Rename from "parse_pwd". (pwdgrp::read_passwd): Rename from read_etc_passwd. Just call pr.load with a single argument. * pwdgrp.h (pwdgrp_state): Eliminate. (pwdgrp): Reflect above renamings. (pwdgrp::etc_ix): Rename from pwd_ix. (pwdgrp::read): New element. (pwdgrp::lock): New element. (pwdgrp::refresh): New function. (pwdgrp::load): Eliminate variations which take buffer arguments. (pwdgrp::pwdgrp): New constructors. Initialize mutex here. * uinfo.cc (pwdgrp::load): Accommodate pwd_ix -> etc_ix renaming. (pwdgrp::load): Set initialized state to true rather than setting state to loaded. 2003-01-21 Christopher Faylor * include/cygwin/version.h: Bump DLL minor number. 2003-01-21 Pierre Humblet * path.h (etc::change_possible): Revert the type to bool. (etc::set_last_modified): Remove obsolete function. * path.cc (etc::change_possible): Revert type to bool. (etc::test_file_change): Do not test for negative values of change_possible and do not set it to -res. (etc::dir_changed): When the handle is NULL, call memset instead of test_file_changed. When the handle is invalid, return true. Detect filename change in /etc. (etc::file_changed): Remove unneeded check for !fn[n]. * uinfo.cc (pwdgrp::load): Eliminate spurious setting of fh to NULL. * pwdgrp.h (pwdgrp::operator =): Eliminate. 2003-01-19 Christopher Faylor * pwdgrp.h (etc): Move to path.h. (pwdgrp::max_lines): New field. (pwdgrp::curr_lines): New field. (pwdgrp::pwdgrp_buf): Ditto. (pwdgrp_buf_elem_size): Ditto. (pwdgrp_parse): Ditto. (pwdgrp::gets): Just declare here. (pwdgrp::load): Ditto. Just take one argument. (pwdgrp::load): Define overloaded function accepting passwd buf. (pwdgrp::load): Define overloaded function accepting group buf. * grp.cc: Use pwdgrp elements rather than standalone static variables throughout. (curr_lines): Eliminate. (max_lines): Ditto. (add_grp_line): Ditto. (parse_grp): Define as returning boolean. Accept void * arg and line count. Coerce first argument into __group32 buf reference. Increment curr_line as appropriate. (read_etc_group): Pass pwdgrp buffer to gr.load. * passwd.cc: Use pwdgrp elements rather than standalone static variables throughout. (curr_lines): Eliminate. (max_lines): Ditto. (add_grp_line): Ditto. (parse_passwd): Define as returning boolean. Accept void * arg and line count. Coerce first argument into passwd buf reference. Increment curr_line as appropriate. (read_etc_group): Pass pwdgrp buffer to pr.load. * path.cc (etc::fn): Extend buffer size to allow index by 1 rather than zero. (etc::last_modified): Ditto. (etc::change_possible): Ditto. Renamed from sawchange. Change to signed char since elements are now tri-state. (etc::init): Assume "handle" is 1 based rather than 0. (etc::test_file_change): New function. Sets change_possible based on file date comparison. (etc::dir_changed): Check file states immediately after changed_h is initialized to avoid a race. (etc::file_changed): Use test_file_change to detect if file needs to be updated. * path.h (etc): Move class here from pwdgrp.h. * uinfo.cc: Move etc:: functions to path.cc. Move pwdgrp functions here. (pwdgrp::gets): Eliminate buf checks. Just check eptr and set lptr. (pwdgrp::add_line): New function. (pwdgrp::load): Call generic add_line function which will call correct parser. 2003-01-17 Christopher Faylor * cygheap.cc: Change most 'int's to 'unsigned's. (_cmalloc): Only check for size of malloced region when calculating bucket. Add overhead when performing the sbrk. Previous change broke _crealloc. 2003-01-17 Christopher Faylor * dcrt0.cc (initialize_env): Use colon for CYGWIN_DEBUG separator. * grp.cc: Change most statics to NO_COPY throughout. * passwd.cc: Ditto. 2003-01-17 Christopher Faylor * pwdgrp.h: Change some BOOLs to bools. (pwdgrp::pwdgrp): Remove unneeded constructor. * passwd.cc: Change BOOL to bool throughout. 2003-01-17 Corinna Vinschen * cygwin.din: Add strerror_r. * include/cygwin/version.h: Bump API minor number. 2003-01-17 Christopher Faylor * uinfo.cc (etc::dir_changed): Don't print a warning if can't open /etc, unless debugging. 2003-01-17 Pierre Humblet * grp.cc (read_etc_group): On NT, add a line for gid = -1. Change name "unknown" to "mkgroup". (internal_getgrgid): Do not return default in nontsec case. (internal_getgroups): Add argument srchsid and look for it in groups if not NULL. * passwd.cc (read_etc_passwd): On NT, add a line for uid = -1. Use same default uid for Win95 and NT. Call cygheap_user::ontherange to initialize HOME. 2003-01-16 Christopher Faylor * cygheap.cc (init_cygheap::etc_changed): Move to uinfo.cc. * cygheap.h (init_cygheap::etc_changed_h): Remove. (init_cygheap::etc_changed): Ditto. * grp.cc (group_state): Remove. Use gr instead throughout. (gr): Define as class pwdgrp. (read_etc_group): Remove gr definition. Remove calls to set_last_modified and close. Pass add_grp to gr.load to load file. * passwd.cc (passwd_state): Remove. Use pr instead, throughout. (pr): Define as class pwdgrp. (read_etc_passwd): Remove pr definition. Remove calls to set_last_modified and close. Pass add_pwd_line to pr.load to load file. * pwdgrp.h (etc): New helper class for pwdgrp. (pwdgrp): Combine pwdgrp_check and pwdgrp_read into one class. Remove file_w32 and last_modified fields. (pwdgrp::set_last_modified): Remove. (pwdgrp::isinitializing): Remove FindFirstFile stuff. Move to etc::file_changed. (pwdgrp::load): Rename from 'open'. Call etc::init to initialize etc scanning. Close file handle after reading buffer into memory. Parse buffer by calling second argument. (pwdgrp::gets): Reorganize slightly to rely on eptr starting at beginning of buffer. (pwdgrp::close): Remove. * uinfo.cc (etc::dir_changed): New function. (etc::init): Ditto. (etc::file_changed): Ditto. (etc::set_last_modified): Ditto. 2003-01-16 Jason Tishler * mmap.cc (fixup_mmaps_after_fork): Add ERROR_NOACCESS to the list of ReadProcessMemory() error codes that trigger a retry with temporary PAGE_READONLY access. Note that this can occur on NT 4.0. 2003-01-15 Christopher Faylor * path.cc (normalize_posix_path): Convert win32 path separators to slashes when full path is specified. 2003-01-15 Pierre Humblet * cmalloc.cc (_cmalloc): Fix memory leak. 2003-01-15 Corinna Vinschen * autoload.cc: Fix copyright date. * fhandler_dsp.cc: Ditto. * mmap.cc: Ditto. * net.cc: Ditto. * ntdll.h: Ditto. * signal.cc: Ditto. * syscalls.cc: Ditto. * uname.cc: Ditto. * wait.cc: Ditto. 2003-01-14 Corinna Vinschen * mmap.cc (fixup_mmaps_after_fork): Copy protection to child process. Change ambiguous debug output. 2003-01-14 Corinna Vinschen * mmap.cc (mmap_record::access): Change argument type to caddr_t for strictness. (mprotect): Protect against calling VirtualProtect() for shared pages on 9x/Me. (fixup_mmaps_after_fork): If ReadProcessMemory() fails, try to change protection of parent page to PAGE_READONLY, then try again. Revert protection afterwards. 2003-01-14 Thomas Pfaff * syscalls.cc (system): Add pthread_testcancel call. * thread.cc: Update list of cancellation points. 2003-01-14 Thomas Pfaff * wait.cc: Include thread.h (wait4): Add pthread_testcancel call. Wait for child process and cancellation event. * thread.cc: Update list of cancellation points. 2003-01-14 Thomas Pfaff * signal.cc (sleep): Add pthread_testcancel call. Wait for signal and cancellation event. (usleep): Ditto. 2003-01-14 Thomas Pfaff * exceptions.cc (handle_sigsuspend): Add pthread_testcancel call. Wait for signal and cancellation event. * thread.cc: Update list of cancellation points. 2003-01-14 David Huang * fhandler_dsp.cc (fhandler_dsp::ioctl): Add limited support for SNDCTL_DSP_GETFMTS. 2003-01-12 Christopher Faylor * ntdll.h: Fix typo. 2003-01-12 Corinna Vinschen * uname.cc (uname): Use cygwin_gethostname() to retrieve hostname. 2003-01-12 Pierre Humblet * sec_acl.cc (search_ace): Use id == -1, instead of < 0, as wildcard. (setacl): Start the search for a matching default at the next entry. Invalidate the type of merged entries instead of clearing it. Use well_known_creator for default owner and owning group and do not try to merge non-default and default entries in these cases. (getacl): Recognize well_known_creator for default owner and group. (acl_worker): Improve errno settings and streamline the nontsec case. * security.cc (write_sd): Remove the call to set_process_privilege. (alloc_sd): If the owner changes, call set_process_privilege and return immediately on failure. Change inheritance rules: on new directories add inherit only allow ACEs for creator_owner, creator_group and everyone. Preserve all inheritances through chmod and chown calls. Introduce isownergroup to implement the uid == gid case, to keep the inheritance code simple. Do not initialize owner_sid and group_sid and stop using the variable psd. 2003-01-10 Christopher Faylor * net.cc: Use gethostname define from winsock2.h. 2003-01-10 Christopher Faylor * path.cc: Unrevert below reversion except for mount_info::conv_to_posix_path part. 2003-01-10 Corinna Vinschen * path.cc: Revert patch from 2003-01-09 to normalize a windows path rather than converting to posix. 2003-01-10 Corinna Vinschen * autoload.cc (gethostname): Make call optional, return 1 if function can't get loaded. * net.cc (cygwin_gethostname): Call GetComputerName if return value of gethostname is non-zero. 2003-01-10 Charles Wilson * cygwin.din: Add asprintf and vasprintf, as well as the reentrant versions and underscore variants. * include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR. 2003-01-10 Corinna Vinschen * net.cc (cygwin_gethostname): Fix call to wsock function gethostname. 2003-01-09 Christopher Faylor * cygthread.cc (cygthread::cygthread): Be more noisy about odd condition. * miscfuncs.cc (low_priority_sleep): Sleep in regular priority if that's what we're currently running at. 2003-01-09 Thomas Pfaff * include/semaphore.h: Modify typedef for sem_t. * include/cygwin/types.h: Modify typedefs for pthread_t, pthread_mutex_t, pthread_key_t, pthread_attr_t, pthread_mutexattr_t, pthread_condattr_t, pthread_cond_t, pthread_rwlock_t and pthread_rwlockattr_t. 2003-01-09 Thomas Pfaff * thread.h (WAIT_CANCELED): New define. (pthread::cancelable_wait): New static method. * thread.cc (pthread::cancelable_wait): Implement. (semaphore::Wait): Wait on semaphore and thread cancellation. (pthread::join): Wait on joined thread and thread cancellation. (semaphore::wait): Add testcancel to check for thread cancellation even if the semaphore is available. 2003-01-09 Thomas Pfaff * include/pthread.h: Add define for errorchecking mutexes. Change default mutex type. * thread.cc (pthread_cond::TimedWait): Update mutex unlock calls. (pthread_mutex::pthread_mutex): New implement. (pthread_mutex::~pthread_mutex): Ditto. (pthread_mutex::Lock): Ditto. (pthread_mutex::TryLock): Ditto. (pthread_mutex::UnLock): Ditto. (pthread_mutex::Destroy): Implement new method. (pthread_mutex::SetOwner): Ditto. (pthread_mutex::LockRecursive): Ditto. (pthread_mutex::fixup_after_fork): Restore locking state after fork. (__pthread_mutex_lock): Return pthread_mutex::Lock errorcode. (__pthread_mutex_trylock): Return pthread_mutex::TryLock errorcode. (__pthread_mutex_unlock): Return pthread_mutex::UnLock errorcode. (__pthread_mutex_destroy): Call pthread_mutex::Destroy to destroy mutex. (__pthread_mutexattr_settype): Allow errorchecking and recursive types. * thread.h (MUTEX_LOCK_COUNTER_INITIAL): New define. (pthread_mutex::criticalsection): Remove. (pthread_mutex::lock_counter): New member. (pthread_mutex::recursion_counter): Ditto. (pthread_mutex::owner): Ditto. (pthread_mutex::type): Ditto. (pthread_mutex::Destroy): New method. (pthread_mutex::SetOwner): Ditto. (pthread_mutex::LockRecursive): Ditto. 2003-01-09 Thomas Pfaff * pthread.cc (pthread_cond_init): Use new pthread_cond::init. * thread.cc: Some white spaces cleanups. Change __pthread_cond_init to pthread_cond::init throughout. (nativeMutex): Move class methods outside pthread_mutex. (MTinterface::Init): Initialize pthread_cond init lock. (pthread_cond::condInitializationLock): Instantiate. (pthread_cond::initMutex): New Method. (pthread_cond::isGoodInitializerOrBadObject): Ditto. * thread.h: Some white spaces cleanups. (nativeMutex): Move class declaration outside pthread_mutex. (pthread_cond::condInitializationLock): New static member. (pthread_cond::initMutex): New Method. (pthread_cond::isGoodInitializerOrBadObject): Ditto. (__pthread_cond_init): Remove prototype. 2003-01-09 Corinna Vinschen * fhandler_disk_file.cc (num_entries): Return 2 as link count if directory unreadable. 2003-01-09 Corinna Vinschen * security.cc (get_nt_attribute): Always return -1 when read_sd() fails. (get_file_attribute): Set permissions to 0 and owner/group to -1 if security descriptor is unreadable. 2003-01-09 Christopher Faylor Use isdirsep rather than SLASH_P throughout. * path.cc (iscygdrive): Disallow /cygdrive\x. (normalize_posix_path): "Normalize" a windows path, if detected, rather than converting to posix. 2003-01-06 Troy Curtiss * fhandler_serial.cc (fhandler_serial::tcsetattr): Add support and capability checking for B230400 bitrate. (fhandler_serial::tcgetattr): Add support for B230400 bitrate. * include/sys/termios.h: Add B230400 definition for Posix support of 230.4Kbps. 2003-01-05 Christopher Faylor * pinfo.cc (_pinfo::commune_send): Use myself->lock rather than just lock when leaving. 2003-01-03 Christopher Faylor * dtable.h (dtable::in_vfork_cleanup): New function. True if vfork cleanup needed. * dtable.cc (dtable::vfork_parent_restore): Remove assertion. * pipe.cc (fhandler_pipe::close): Don't close read_state during fork_fixup since it wasn't inherited. 2003-01-01 Christopher Faylor * passwd.cc (getpwuid_r32): Revert previous change. 2003-01-01 Christopher Faylor * sysconf.cc (sysconf): Return arbitrary values for _SC_GETGR_R_SIZE_MAX, _SC_LOGIN_NAME_MAX, _SC_GETPW_R_SIZE_MAX. * passwd.cc (getpwuid_r32): Add uid/gid fields to size check calculation.