* cygwin-ug-net.in.sgml: Update date.
* cygwinenv.sgml: Fix codepage:utf8 text in terms of setting environment variables. * new-features.sgml: New file describing new Cygwin 1.7 features. Layout is preliminiary only. * overview.sgml: Insert content of new-features.sgml.
This commit is contained in:
Corinna Vinschen
parent
c666186be8
commit
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@ -1,3 +1,12 @@
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2009-03-18 Corinna Vinschen <corinna@vinschen.de>
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* cygwin-ug-net.in.sgml: Update date.
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* cygwinenv.sgml: Fix codepage:utf8 text in terms of setting
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environment variables.
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* new-features.sgml: New file describing new Cygwin 1.7 features.
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Layout is preliminiary only.
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* overview.sgml: Insert content of new-features.sgml.
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2009-03-18 Corinna Vinschen <corinna@vinschen.de>
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* overview2.sgml: Remove reference to CYGWIN=binmode.
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@ -5,7 +5,7 @@
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<book id="cygwin-ug-net">
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<bookinfo>
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<date>2003-04-08</date>
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<date>2009-03-18</date>
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<title>Cygwin User's Guide</title>
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DOCTOOL-INSERT-legal
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@ -29,9 +29,9 @@ equipment manufacturers (OEMs).</para>
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do not display correctly in Cygwin, you can use this option to select an
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appropriate codepage. Finally, <envar>utf8</envar> treats all file names
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and console characters as UTF-8 chars. Please note that, for correct
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operation, you have to set the environment variable LC_CTYPE to "C-UTF-8"
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for the time being. The reason is that newlib's multibyte conversion
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functions require this setting.</para>
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operation, you have to set the environment variable LANG or LC_ALL to
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somthing like "en_US.UTF-8", otherwise many applications will not be
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able to recognize UTF-8 strings correctly.</para>
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</listitem>
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<listitem>
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278
winsup/doc/new-features.sgml
Normal file
278
winsup/doc/new-features.sgml
Normal file
@ -0,0 +1,278 @@
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<sect1 id="ov-new1.7"><title>What's new and what changed in Cygwin 1.7</title>
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<sect2 id="ov-new1.7-os"><title>OS releated changes</title>
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<screen>
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- Windows 95, 98 and Me are not supported anymore. The new Cywin 1.7 DLL
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will not run on any of these systems.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-file"><title>File Access related changes</title>
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<screen>
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- Mount points are no longer stored in the registry. Use /etc/fstab
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and /etc/fstab.d/$USER instead. Mount points created with mount(1)
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are only local to the current session and disappear when the last
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Cygwin process in the session exits.
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- PATH_MAX is now 4096. Internally, path names can be as long as the
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underlying OS can handle (32K).
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- UTF-8 filenames are supported now. So far, this requires to set
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the environment variable CYGWIN to contain "codepage:utf8". but this
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will likely disappear at one point. The setting of $LANG or $LC_CTYPE
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will be used instead.
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- struct dirent now supports d_type, filled out with DT_REG or DT_DIR.
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All other file types return as DT_UNKNOWN for performance reasons.
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- The CYGWIN environment variable options "ntsec" and "smbntsec" have
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been replaced by the per-mount option "acl"/"noacl".
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- The CYGWIN environment variable option "ntea" has been removed without
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substitute.
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- The CYGWIN environment variable option "check_case" has been removed
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in favor of real case-sensitivity on file systems supporting it.
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- Creating filenames with special DOS characters '"', '*', ':', '<',
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'>', '|' is supported.
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- Creating files with special DOS device filename components ("aux",
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"nul", "prn") is supported.
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- File name are case sensitive if the OS and the underlying file system
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supports it. Works on NTFS and NFS. Does not work on FAT and Samba
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shares. Requires to change a registry key (see the user's guide).
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Can be switched off on a per-mount base.
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- Due to the above changes, managed mounts have been removed.
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- Incoming DOS paths are always handled case-insensitive and get no POSIX
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permission, as if they are mounted with noacl,posix=0 mount flags.
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- unlink(2) and rmdir(2) try very hard to remove files/directories even
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if they are currently accessed or locked. This is done by utilizing
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the hidden recycle bin directories and marking the files for deletion.
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- rename(2) rewritten to be more POSIX conformant.
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- Add st_birthtim member to struct stat.
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- File locking is now advisory, not mandatory anymore. The fcntl(2) and
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the new lockf(2) APIs create and maintain locks with POSIX semantics,
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the flock(2) API creates and maintains locks with BSD semantics.
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POSIX and BSD locks are independent of each other.
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- Implement atomic O_APPEND mode.
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- New open(2) flags O_DIRECTORY, O_EXEC and O_SEARCH.
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- Handle NTFS native symlinks available since Vista/2008 as symlinks
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(but don't create Vista/2008 symlinks due to unfortunate OS restrictions).
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- Recognize NFS shares and handle them using native mechanisms.
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Recognize and create real symlinks on NFS shares. Get correct
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stat(2) information and set real mode bits on open(2), mkdir(2)
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and chmod(2).
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- Recognize Netapp DataOnTap drives and fix inode number handling.
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- Recognize Samba version beginning with Samba 3.0.28a using the new
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extended version information negotiated with the Samba developers.
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- List servers of all accessible domains and workgroups in // instead of
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just the servers in the own domain/workgroup.
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- Support Linux-like extended attributes ([fl]getxattr, [fl]listxattr,
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[fl]setxattr, [fl]removexattr).
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- New file conversion API for conversion from Win32 to POSIX path and
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vice versa (cygwin_conv_path, cygwin_create_path, cygwin_conv_path_list).
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- New openat family of functions: openat, faccessat, fchmodat, fchownat,
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fstatat, futimesat, linkat, mkdirat, mkfifoat, mknodat, readlinkat, renameat,
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symlinkat, unlinkat.
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- Other new APIs: posix_fadvise, posix_fallocate, funopen, fopencookie,
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open_memstream, open_wmemstream, fmemopen, fdopendir.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-net"><title>Network related changes</title>
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<screen>
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- New implementation for blocking sockets and select on sockets which
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is supposed to allow POSIX-compatible sharing of sockets between
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threads and processes.
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- send/sendto/sendmsg now send data in 64K chunks to circumvent an
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internal buffer problem in WinSock (KB 201213).
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- New send/recv option MSG_DONTWAIT.
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- IPv6 support. New API getaddrinfo, getnameinfo, freeaddrinfo,
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gai_strerror, in6addr_any, in6addr_loopback. On IPv6-less systems,
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replacement functions are available for IPv4. On systems with IPv6
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enabled, the underlying WinSock functions are used. While I tried
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hard to get the functionality as POSIXy as possible, keep in mind that
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a *fully* conformant implementation of getaddrinfo and other stuff is
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only available starting with Windows Vista/2008.
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- Resolver functions (res_init, res_query, res_search, res_querydomain,
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res_mkquery, res_send, dn_comp, dn_expand) are now part of Cygwin.
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Applications don't have to link against minires anymore. Actually,
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this *is* the former libminires.a.
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- rcmd is now implemented inside of Cygwin, instead of calling the
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WinSock function. This allows rsh(1) usage on Vista/2008, which
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dropped this function from WinSock.
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- Define multicast structures in netinet/in.h. Note that fully
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conformant multicast support is only available beginning with Vista/2008.
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- Improve get_ifconf. Redefine struct ifreq and subsequent datastructures
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to be able to keep more information. Support SIOCGIFINDEX, SIOCGIFDSTADDR
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and the Cygwin specific SIOCGIFFRNDLYNAM. Support real interface flags
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on systems supporting them.
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- Other new APIs: bindresvport, bindresvport_sa, gethostbyname2, iruserok_sa,
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rcmd_af, rresvport_af. getifaddrs, freeifaddrs, if_nametoindex,
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if_indextoname, if_nameindex, if_freenameindex.
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- Add /proc/net/if_inet6.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-device"><title>Device related changes</title>
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<screen>
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- Reworked pipe implementation which uses overlapped IO to create
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more reliable interruptible pipes and fifos.
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- The CYGWIN environment variable option "binmode" has been removed.
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- Improved fifo handling by using native Windows named pipes.
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- Detect when a stdin/stdout which looks like a pipe is really a tty.
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Among other things, this allows a debugged application to recognize that
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it is using the same tty as the debugger.
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- Support UTF-8 in console window.
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- Support up to 64 serial interfaces using /dev/ttyS0 - /dev/ttyS63.
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- Support up to 128 raw disk drives /dev/sda - /dev/sddx.
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- New API: cfmakeraw, posix_openpt.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-posix"><title>Other POSIX related changes</title>
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<screen>
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- Allow multiple concurrent read locks per thread for pthread_rwlock_t.
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- Implement pthread_kill(thread, 0) as per POSIX.
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- New API for POSIX IPC:
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Named semaphores: sem_open, sem_close, sem_unlink.
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Message queues: mq_open, mq_getattr, mq_setattr, mq_notify, mq_send,
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mq_timedsend, mq_receive, mq_timedreceive, mq_close, mq_unlink.
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Shared memory: shm_open, shm_unlink.
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- Only declare expected functions in <strings.h>, don't include
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<string.h> from here.
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- New APIs: _Exit, confstr, insque, remque, sys_sigabbrev,
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posix_madvise, posix_memalign, reallocf,
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exp10, exp10f, pow10, pow10f, lrint, lrintf, rint, rintf, llrint, llrintf,
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llrintl, lrintl, rintl,
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mbsnrtowcs, strcasestr, stpcpy, stpncpy, wcpcpy, wcpncpy, wcsnlen,
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wcsnrtombs, wcsftime, wcstod, wcstof, wcstoimax, wcstok, wcstol, wcstoll,
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wcstoul, wcstoull, wcstoumax, wcsxfrm, wcscasecmp, wcsncasecmp,
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fgetwc, fgetws, fputwc, fputws, fwide, getwc, getwchar, putwc, putwchar,
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ungetwc, asnprintf, dprintf, vasnprintf, vdprintf,
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wprintf, fwprintf, swprintf, vwprintf, vfwprintf, vswprintf,
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wscanf, fwscanf, swscanf, vwscanf, vfwscanf, vswscanf.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-sec"><title>Security related changes</title>
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<screen>
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- Getting a domain user's groups is hopefully more bulletproof now.
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- Cygwin now comes with a real LSA authentication package. This must
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be manually installed by a privileged user using the /bin/cyglsa-config
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script. The advantages and disadvantages are noted in
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http://cygwin.com/ml/cygwin-developers/2006-11/msg00000.html
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- Cygwin now allows to store and use user passwords in a hidden area of
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the registry. This is tried first when Cygwin is called by privileged
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processes to switch the user context. This allows, for instance,
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ssh public key sessions with full network credentials to access shares
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on other machines.
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- The mkpasswd and mkgroup tools have changed behaviour and a couple of
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new options to ease consistent usage in multi-machine or multi-domain
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environments.
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</screen>
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</sect2>
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<sect2 id="ov-new1.7-misc"><title>Miscellanous</title>
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<screen>
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- New ldd utility, similar to Linux.
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- Fallout from the long path names: If the current working directory is
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longer than 260 bytes, or if the current working directory is a virtual
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path (like /proc, /cygdrive, //server), don't call native Win32 programs
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since they don't understand these paths.
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- On the first usage of a DOS path (C:\foo, \\foo\bar), the Cygwin DLL
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emits a scary warning that DOS paths shouldn't be used. There's also
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the new CYGWIN=nodosfilewarning setting to disable that.
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- The CYGWIN environment variable option "server" has been removed.
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Cygwin automatically uses cygserver if it's available.
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- Allow environment of arbitrary size instead of a maximum of 32K.
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- Don't force uppercase environment when started from a non-Cygwin process.
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Except for certain Windows and POSIX variables which are always uppercased,
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preserve environment case. Switch back to old behaviour with the new
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CYGWIN=upcaseenv setting.
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- Detect and report a missing DLL on process startup.
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- Add /proc/registry32 and /proc/registry64 paths to access 32 bit and
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64 bit registry on 64 bit systems.
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- Add the ability to distinguish registry keys and registry values with the
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same name in the same registry subtree. The key is called "foo" and the
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value will be called "foo%val" in this case.
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- Align /proc/cpuinfo more closly to Linux content.
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- Add /proc/$PID/mounts entries and a symlink /proc/mounts pointing to
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/proc/self/mounts as on Linux.
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- Optimized strstr and memmem implementation.
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- Remove backwards compatibility with old signal masks (some *very* old
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programs which use signal masks may no longer work correctly).
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</screen>
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</sect2>
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</sect1>
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@ -117,5 +117,6 @@ more.</para>
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</sect1>
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DOCTOOL-INSERT-highlights
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DOCTOOL-INSERT-ov-new1.7
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</chapter>
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Loading…
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Reference in New Issue
Block a user