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Diffstat (limited to 'winsup/cygwin/fhandler.h')
| -rw-r--r-- | winsup/cygwin/fhandler.h | 1404 |
1 files changed, 0 insertions, 1404 deletions
diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h deleted file mode 100644 index 6e7bf4821..000000000 --- a/winsup/cygwin/fhandler.h +++ /dev/null @@ -1,1404 +0,0 @@ -/* fhandler.h - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, - 2005, 2006 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#ifndef _FHANDLER_H_ -#define _FHANDLER_H_ - -/* fcntl flags used only internaly. */ -#define O_NOSYMLINK 0x080000 -#define O_DIROPEN 0x100000 - -/* newlib used to define O_NDELAY differently from O_NONBLOCK. Now it - properly defines both to be the same. Unfortunately, we have to - behave properly the old version, too, to accommodate older executables. */ -#define OLD_O_NDELAY (CYGWIN_VERSION_CHECK_FOR_OLD_O_NONBLOCK ? 4 : 0) - -/* Care for the old O_NDELAY flag. If one of the flags is set, - both flags are set. */ -#define O_NONBLOCK_MASK (O_NONBLOCK | OLD_O_NDELAY) - -extern const char *windows_device_names[]; -extern struct __cygwin_perfile *perfile_table; -#define __fmode (*(user_data->fmode_ptr)) -extern const char proc[]; -extern const int proc_len; - -class select_record; -class fhandler_disk_file; -typedef struct __DIR DIR; -struct dirent; -struct iovec; -struct __acl32; - -enum dirent_states -{ - dirent_ok = 0x0000, - dirent_saw_dot = 0x0001, - dirent_saw_dot_dot = 0x0002, - dirent_saw_eof = 0x0004, - dirent_isroot = 0x0008, - dirent_set_d_ino = 0x0010, - dirent_get_d_ino = 0x0020 -}; - -enum conn_state -{ - unconnected = 0, - connect_pending = 1, - connected = 2, - connect_failed = 3 -}; - -enum line_edit_status -{ - line_edit_ok = 0, - line_edit_input_done = 1, - line_edit_signalled = 2, - line_edit_error = 3, - line_edit_pipe_full = 4 -}; - -enum bg_check_types -{ - bg_error = -1, - bg_eof = 0, - bg_ok = 1, - bg_signalled = 2 -}; - -enum query_state { - no_query = 0, - query_read_control = 1, - query_stat_control = 2, - query_write_control = 3, - query_write_attributes = 4 -}; - -class fhandler_base -{ - friend class dtable; - friend void close_all_files (bool); - - struct status_flags - { - unsigned rbinary : 1; /* binary read mode */ - unsigned rbinset : 1; /* binary read mode explicitly set */ - unsigned wbinary : 1; /* binary write mode */ - unsigned wbinset : 1; /* binary write mode explicitly set */ - unsigned nohandle : 1; /* No handle associated with fhandler. */ - unsigned uninterruptible_io : 1; /* Set if I/O should be uninterruptible. */ - unsigned append_mode : 1; /* always append */ - unsigned did_lseek : 1; /* set when lseek is called as a flag that - _write should check if we've moved - beyond EOF, zero filling or making - file sparse if so. */ - unsigned query_open : 3; /* open file without requesting either - read or write access */ - unsigned close_on_exec : 1; /* close-on-exec */ - unsigned need_fork_fixup : 1; /* Set if need to fixup after fork. */ - unsigned has_changed : 1; /* Flag used to set ctime on close. */ - - public: - status_flags () : - rbinary (0), rbinset (0), wbinary (0), wbinset (0), nohandle (0), - uninterruptible_io (0), append_mode (0), did_lseek (0), - query_open (no_query), close_on_exec (0), need_fork_fixup (0), - has_changed (0) - {} - } status, open_status; - - private: - int access; - HANDLE io_handle; - - __ino64_t namehash; /* hashed filename, used as inode num */ - - protected: - /* File open flags from open () and fcntl () calls */ - int openflags; - - char *rabuf; /* used for crlf conversion in text files */ - size_t ralen; - size_t raixget; - size_t raixput; - size_t rabuflen; - - DWORD fs_flags; - HANDLE read_state; - path_conv pc; - - public: - class fhandler_base *archetype; - int usecount; - - virtual void set_name (path_conv &pc); - int error () const {return pc.error;} - void set_error (int error) {pc.error = error;} - bool exists () const {return pc.exists ();} - int pc_binmode () const {return pc.binmode ();} - device& dev () {return pc.dev;} - operator DWORD& () {return (DWORD&) pc;} - virtual size_t size () const {return sizeof (*this);} - - virtual fhandler_base& operator =(fhandler_base &x); - fhandler_base (); - virtual ~fhandler_base (); - - /* Non-virtual simple accessor functions. */ - void set_io_handle (HANDLE x) { io_handle = x; } - - DWORD& get_device () { return dev ().devn; } - DWORD get_major () { return dev ().major; } - DWORD get_minor () { return dev ().minor; } - virtual int get_unit () { return dev ().minor; } - - int get_access () const { return access; } - void set_access (int x) { access = x; } - - int get_flags () { return openflags; } - void set_flags (int x, int supplied_bin = 0); - - bool is_nonblocking (); - void set_nonblocking (int); - - bool wbinary () const { return status.wbinset ? status.wbinary : 1; } - bool rbinary () const { return status.rbinset ? status.rbinary : 1; } - - void wbinary (bool b) {status.wbinary = b; status.wbinset = 1;} - void rbinary (bool b) {status.rbinary = b; status.rbinset = 1;} - - void set_open_status () {open_status = status;} - void reset_to_open_binmode () - { - set_flags ((get_flags () & ~(O_TEXT | O_BINARY)) - | ((open_status.wbinary || open_status.rbinary) - ? O_BINARY : O_TEXT)); - } - - IMPLEMENT_STATUS_FLAG (bool, wbinset) - IMPLEMENT_STATUS_FLAG (bool, rbinset) - IMPLEMENT_STATUS_FLAG (bool, nohandle) - IMPLEMENT_STATUS_FLAG (bool, uninterruptible_io) - IMPLEMENT_STATUS_FLAG (bool, append_mode) - IMPLEMENT_STATUS_FLAG (bool, did_lseek) - IMPLEMENT_STATUS_FLAG (query_state, query_open) - IMPLEMENT_STATUS_FLAG (bool, close_on_exec) - IMPLEMENT_STATUS_FLAG (bool, need_fork_fixup) - IMPLEMENT_STATUS_FLAG (bool, has_changed) - - int get_default_fmode (int flags); - - virtual void set_close_on_exec (bool val); - - LPSECURITY_ATTRIBUTES get_inheritance (bool all = 0) - { - if (all) - return close_on_exec () ? &sec_all_nih : &sec_all; - else - return close_on_exec () ? &sec_none_nih : &sec_none; - } - - virtual void fixup_before_fork_exec (DWORD) {} - virtual void fixup_after_fork (HANDLE); - virtual void fixup_after_exec (); - void create_read_state (LONG n) - { - read_state = CreateSemaphore (&sec_none_nih, 0, n, NULL); - ProtectHandle (read_state); - } - - void signal_read_state (LONG n) - { - ReleaseSemaphore (read_state, n, NULL); - } - - void set_fs_flags (DWORD flags) { fs_flags = flags; } - bool get_fs_flags (DWORD flagval = UINT32_MAX) - { return (fs_flags & (flagval)); } - - bool get_readahead_valid () { return raixget < ralen; } - int puts_readahead (const char *s, size_t len = (size_t) -1); - int put_readahead (char value); - - int get_readahead (); - int peek_readahead (int queryput = 0); - - int eat_readahead (int n); - - void set_readahead_valid (int val, int ch = -1); - - int get_readahead_into_buffer (char *buf, size_t buflen); - - bool has_acls () const { return pc.has_acls (); } - - bool isremote () { return pc.isremote (); } - - bool has_attribute (DWORD x) const {return pc.has_attribute (x);} - const char *get_name () const { return pc.normalized_path; } - const char *get_win32_name () { return pc.get_win32 (); } - __ino64_t get_namehash () { return namehash ?: namehash = hash_path_name (0, get_win32_name ()); } - /* Returns name used for /proc/<pid>/fd in buf. */ - virtual char *get_proc_fd_name (char *buf); - - virtual void hclose (HANDLE h) {CloseHandle (h);} - virtual void set_no_inheritance (HANDLE &, bool); - - /* fixup fd possibly non-inherited handles after fork */ - bool fork_fixup (HANDLE, HANDLE &, const char *); - virtual bool need_fixup_before () const {return false;} - - int open_9x (int, mode_t = 0); - virtual int open (int, mode_t = 0); - int open_fs (int, mode_t = 0); - virtual int close (); - int close_fs (); - virtual int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - int __stdcall fstat_fs (struct __stat64 *buf) __attribute__ ((regparm (2))); - int __stdcall fstat_helper (struct __stat64 *buf, - FILETIME ftChangeTime, - FILETIME ftLastAccessTime, - FILETIME ftLastWriteTime, - DWORD dwVolumeSerialNumber, - ULONGLONG nFileSize, - LONGLONG nAllocSize, - ULONGLONG nFileIndex, - DWORD nNumberOfLinks, - DWORD dwFileAttributes) - __attribute__ ((regparm (3))); - int __stdcall fstat_by_handle (struct __stat64 *buf) __attribute__ ((regparm (2))); - int __stdcall fstat_by_name (struct __stat64 *buf) __attribute__ ((regparm (2))); - int utimes_fs (const struct timeval *) __attribute__ ((regparm (2))); - virtual int __stdcall fchmod (mode_t mode) __attribute__ ((regparm (1))); - virtual int __stdcall fchown (__uid32_t uid, __gid32_t gid) __attribute__ ((regparm (2))); - virtual int __stdcall facl (int, int, __acl32 *) __attribute__ ((regparm (3))); - virtual int __stdcall fadvise (_off64_t, _off64_t, int) __attribute__ ((regparm (3))); - virtual int __stdcall ftruncate (_off64_t, bool) __attribute__ ((regparm (3))); - virtual int __stdcall link (const char *) __attribute__ ((regparm (2))); - virtual int __stdcall utimes (const struct timeval *) __attribute__ ((regparm (2))); - virtual int __stdcall fsync () __attribute__ ((regparm (1))); - virtual int ioctl (unsigned int cmd, void *); - virtual int fcntl (int cmd, void *); - virtual char const *ttyname () { return get_name (); } - virtual void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - virtual int write (const void *ptr, size_t len); - virtual ssize_t readv (const struct iovec *, int iovcnt, ssize_t tot = -1); - virtual ssize_t writev (const struct iovec *, int iovcnt, ssize_t tot = -1); - virtual ssize_t __stdcall pread (void *, size_t, _off64_t) __attribute__ ((regparm (3))); - virtual ssize_t __stdcall pwrite (void *, size_t, _off64_t) __attribute__ ((regparm (3))); - virtual _off64_t lseek (_off64_t offset, int whence); - virtual int lock (int, struct __flock64 *); - virtual int dup (fhandler_base *child); - virtual int fpathconf (int); - - virtual HANDLE mmap (caddr_t *addr, size_t len, int prot, - int flags, _off64_t off); - virtual int munmap (HANDLE h, caddr_t addr, size_t len); - virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags); - virtual bool fixup_mmap_after_fork (HANDLE h, int prot, int flags, - _off64_t offset, DWORD size, - void *address); - - void *operator new (size_t, void *p) __attribute__ ((nothrow)) {return p;} - - virtual void init (HANDLE, DWORD, mode_t); - - virtual int tcflush (int); - virtual int tcsendbreak (int); - virtual int tcdrain (); - virtual int tcflow (int); - virtual int tcsetattr (int a, const struct termios *t); - virtual int tcgetattr (struct termios *t); - virtual int tcsetpgrp (const pid_t pid); - virtual int tcgetpgrp (); - virtual int is_tty () { return 0; } - virtual bool isdevice () { return true; } - virtual bool isfifo () { return false; } - virtual char *ptsname () { return NULL;} - virtual class fhandler_socket *is_socket () { return NULL; } - virtual class fhandler_console *is_console () { return 0; } - virtual int is_windows () {return 0; } - - virtual void raw_read (void *ptr, size_t& ulen); - virtual int raw_write (const void *ptr, size_t ulen); - - /* Virtual accessor functions to hide the fact - that some fd's have two handles. */ - virtual HANDLE& get_handle () { return io_handle; } - virtual HANDLE& get_io_handle () { return io_handle; } - virtual HANDLE& get_output_handle () { return io_handle; } - virtual bool hit_eof () {return false;} - virtual select_record *select_read (select_record *s); - virtual select_record *select_write (select_record *s); - virtual select_record *select_except (select_record *s); - virtual int ready_for_read (int fd, DWORD howlong); - virtual const char *get_native_name () - { - return dev ().native; - } - virtual bg_check_types bg_check (int) {return bg_ok;} - void clear_readahead () - { - raixput = raixget = ralen = rabuflen = 0; - rabuf = NULL; - } - void operator delete (void *); - virtual HANDLE get_guard () const {return NULL;} - virtual void set_eof () {} - virtual int mkdir (mode_t mode); - virtual int rmdir (); - virtual DIR *opendir (); - virtual int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - virtual _off64_t telldir (DIR *); - virtual void seekdir (DIR *, _off64_t); - virtual void rewinddir (DIR *); - virtual int closedir (DIR *); - virtual bool is_slow () {return 0;} - bool is_auto_device () {return isdevice () && !dev ().isfs ();} - bool is_fs_special () {return pc.is_fs_special ();} - bool issymlink () {return pc.issymlink ();} - bool device_access_denied (int) __attribute__ ((regparm (2))); - int fhaccess (int flags) __attribute__ ((regparm (2))); - friend class fhandler_fifo; -}; - -class fhandler_mailslot : public fhandler_base -{ - public: - fhandler_mailslot (); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - int ioctl (unsigned int cmd, void *); - select_record *select_read (select_record *s); -}; - -struct wsa_event -{ - LONG serial_number; - long events; - int connect_errorcode; - pid_t owner; -}; - -class fhandler_socket: public fhandler_base -{ - private: - int addr_family; - int type; - int connect_secret[4]; - - wsa_event *wsock_events; - HANDLE wsock_mtx; - HANDLE wsock_evt; - public: - bool init_events (); - int evaluate_events (const long event_mask, long &events, const bool erase); - const HANDLE wsock_event () const { return wsock_evt; } - const LONG serial_number () const { return wsock_events->serial_number; } - private: - int wait_for_events (const long event_mask); - void release_events (); - - pid_t sec_pid; - __uid32_t sec_uid; - __gid32_t sec_gid; - pid_t sec_peer_pid; - __uid32_t sec_peer_uid; - __gid32_t sec_peer_gid; - void af_local_set_secret (char *); - void af_local_setblocking (bool &, bool &); - void af_local_unsetblocking (bool, bool); - void af_local_set_cred (); - void af_local_copy (fhandler_socket *); - bool af_local_recv_secret (); - bool af_local_send_secret (); - bool af_local_recv_cred (); - bool af_local_send_cred (); - int af_local_accept (); - public: - int af_local_connect (); - void af_local_set_sockpair_cred (); - - private: - char *sun_path; - struct status_flags - { - unsigned async_io : 1; /* async I/O */ - unsigned saw_shutdown_read : 1; /* Socket saw a SHUT_RD */ - unsigned saw_shutdown_write : 1; /* Socket saw a SHUT_WR */ - unsigned saw_reuseaddr : 1; /* Socket saw SO_REUSEADDR call */ - unsigned listener : 1; /* listen called */ - unsigned connect_state : 2; - public: - status_flags () : - async_io (0), saw_shutdown_read (0), saw_shutdown_write (0), - listener (0), connect_state (unconnected) - {} - } status; - - public: - fhandler_socket (); - ~fhandler_socket (); - int get_socket () { return (int) get_handle(); } - fhandler_socket *is_socket () { return this; } - - IMPLEMENT_STATUS_FLAG (bool, async_io) - IMPLEMENT_STATUS_FLAG (bool, saw_shutdown_read) - IMPLEMENT_STATUS_FLAG (bool, saw_shutdown_write) - IMPLEMENT_STATUS_FLAG (bool, saw_reuseaddr) - IMPLEMENT_STATUS_FLAG (bool, listener) - IMPLEMENT_STATUS_FLAG (conn_state, connect_state) - - int bind (const struct sockaddr *name, int namelen); - int connect (const struct sockaddr *name, int namelen); - int listen (int backlog); - int accept (struct sockaddr *peer, int *len); - int getsockname (struct sockaddr *name, int *namelen); - int getpeername (struct sockaddr *name, int *namelen); - int getpeereid (pid_t *pid, __uid32_t *euid, __gid32_t *egid); - - int open (int flags, mode_t mode = 0); - ssize_t readv (const struct iovec *, int iovcnt, ssize_t tot = -1); - inline ssize_t recv_internal (struct _WSABUF *wsabuf, DWORD wsacnt, - DWORD flags, - struct sockaddr *from, int *fromlen); - ssize_t recvfrom (void *ptr, size_t len, int flags, - struct sockaddr *from, int *fromlen); - ssize_t recvmsg (struct msghdr *msg, int flags); - - ssize_t writev (const struct iovec *, int iovcnt, ssize_t tot = -1); - inline ssize_t send_internal (struct _WSABUF *wsabuf, DWORD wsacnt, int flags, - const struct sockaddr *to, int tolen); - ssize_t sendto (const void *ptr, size_t len, int flags, - const struct sockaddr *to, int tolen); - ssize_t sendmsg (const struct msghdr *msg, int flags); - - int ioctl (unsigned int cmd, void *); - int fcntl (int cmd, void *); - _off64_t lseek (_off64_t, int) { return 0; } - int shutdown (int how); - int close (); - void hclose (HANDLE) {close ();} - int dup (fhandler_base *child); - - void set_close_on_exec (bool val); - void fixup_after_fork (HANDLE); - char *get_proc_fd_name (char *buf); - - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - int ready_for_read (int, DWORD) { return true; } - void set_addr_family (int af) {addr_family = af;} - int get_addr_family () {return addr_family;} - void set_socket_type (int st) { type = st;} - int get_socket_type () {return type;} - void set_sun_path (const char *path); - char *get_sun_path () {return sun_path;} - - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - int __stdcall fchmod (mode_t mode) __attribute__ ((regparm (1))); - int __stdcall fchown (__uid32_t uid, __gid32_t gid) __attribute__ ((regparm (2))); - int __stdcall facl (int, int, __acl32 *) __attribute__ ((regparm (3))); - int __stdcall link (const char *) __attribute__ ((regparm (2))); - bool is_slow () {return 1;} -}; - -class fhandler_pipe: public fhandler_base -{ -protected: - HANDLE guard; - bool broken_pipe; - HANDLE writepipe_exists; - DWORD orig_pid; - unsigned id; -private: - pid_t popen_pid; -public: - fhandler_pipe (); - void set_popen_pid (pid_t pid) {popen_pid = pid;} - pid_t get_popen_pid () const {return popen_pid;} - _off64_t lseek (_off64_t offset, int whence); - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - char *get_proc_fd_name (char *buf); - void set_close_on_exec (bool val); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - int open (int flags, mode_t mode = 0); - int close (); - void create_guard (SECURITY_ATTRIBUTES *sa) - { - guard = CreateMutex (sa, FALSE, NULL); - ProtectHandleINH (guard); - } - int dup (fhandler_base *child); - int ioctl (unsigned int cmd, void *); - int __stdcall fadvise (_off64_t, _off64_t, int) __attribute__ ((regparm (3))); - int __stdcall ftruncate (_off64_t, bool) __attribute__ ((regparm (3))); - void fixup_in_child (); - virtual void fixup_after_fork (HANDLE); - void fixup_after_exec (); - bool hit_eof (); - void set_eof () {broken_pipe = true;} - HANDLE get_guard () const {return guard;} - int ready_for_read (int fd, DWORD howlong); - static int create (fhandler_pipe *[2], unsigned, int, bool = false); - bool is_slow () {return true;} - static int create_selectable (LPSECURITY_ATTRIBUTES, HANDLE&, HANDLE&, DWORD, bool); - friend class fhandler_fifo; -}; - -class fhandler_fifo: public fhandler_pipe -{ - HANDLE output_handle; - long read_use; - long write_use; - virtual HANDLE& get_io_handle () { return io_handle ?: output_handle; } -public: - fhandler_fifo (); - int open (int flags, mode_t mode = 0); - int open_not_mine (int flags) __attribute__ ((regparm (2))); - int close (); - void set_use (int flags) __attribute__ ((regparm (2))); - bool isfifo () { return true; } - HANDLE& get_output_handle () { return output_handle; } - void set_output_handle (HANDLE h) { output_handle = h; } - void set_use (); - int dup (fhandler_base *child); - bool is_slow () {return true;} - void close_one_end (); -}; - -class fhandler_dev_raw: public fhandler_base -{ - protected: - char *devbuf; - size_t devbufsiz; - size_t devbufstart; - size_t devbufend; - struct status_flags - { - unsigned lastblk_to_read : 1; - public: - status_flags () : lastblk_to_read (0) {} - } status; - - IMPLEMENT_STATUS_FLAG (bool, lastblk_to_read) - - fhandler_dev_raw (); - - public: - ~fhandler_dev_raw (); - - int open (int flags, mode_t mode = 0); - - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - - int dup (fhandler_base *child); - int ioctl (unsigned int cmd, void *buf); - - void fixup_after_fork (HANDLE); - void fixup_after_exec (); -}; - -class fhandler_dev_floppy: public fhandler_dev_raw -{ - private: - _off64_t drive_size; - unsigned long bytes_per_sector; - struct status_flags - { - unsigned eom_detected : 1; - public: - status_flags () : eom_detected (0) {} - } status; - - IMPLEMENT_STATUS_FLAG (bool, eom_detected) - - inline _off64_t get_current_position (); - int get_drive_info (struct hd_geometry *geo); - - BOOL write_file (const void *buf, DWORD to_write, DWORD *written, int *err); - BOOL read_file (void *buf, DWORD to_read, DWORD *read, int *err); - - public: - fhandler_dev_floppy (); - - int open (int flags, mode_t mode = 0); - int dup (fhandler_base *child); - void raw_read (void *ptr, size_t& ulen); - int raw_write (const void *ptr, size_t ulen); - _off64_t lseek (_off64_t offset, int whence); - int ioctl (unsigned int cmd, void *buf); -}; - -class fhandler_dev_tape: public fhandler_dev_raw -{ - HANDLE mt_mtx; - HANDLE mt_evt; - - bool is_rewind_device () { return get_minor () < 128; } - unsigned int driveno () { return (unsigned int) get_minor () & 0x7f; } - void drive_init (); - - inline bool _lock (); - inline int unlock (int ret = 0); - - public: - fhandler_dev_tape (); - - virtual int open (int flags, mode_t mode = 0); - virtual int close (); - - void raw_read (void *ptr, size_t& ulen); - int raw_write (const void *ptr, size_t ulen); - - virtual _off64_t lseek (_off64_t offset, int whence); - - virtual int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - - virtual int dup (fhandler_base *child); - virtual void fixup_after_fork (HANDLE parent); - virtual void set_close_on_exec (bool val); - virtual int ioctl (unsigned int cmd, void *buf); -}; - -/* Standard disk file */ - -class fhandler_disk_file: public fhandler_base -{ - void touch_ctime (); - int readdir_helper (DIR *, dirent *, DWORD, DWORD, char *) __attribute__ ((regparm (3))); - int readdir_9x (DIR *, dirent *) __attribute__ ((regparm (3))); - - public: - fhandler_disk_file (); - fhandler_disk_file (path_conv &pc); - - int open (int flags, mode_t mode); - int close (); - int lock (int, struct __flock64 *); - bool isdevice () { return false; } - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - int __stdcall fchmod (mode_t mode) __attribute__ ((regparm (1))); - int __stdcall fchown (__uid32_t uid, __gid32_t gid) __attribute__ ((regparm (2))); - int __stdcall facl (int, int, __acl32 *) __attribute__ ((regparm (3))); - int __stdcall fadvise (_off64_t, _off64_t, int) __attribute__ ((regparm (3))); - int __stdcall ftruncate (_off64_t, bool) __attribute__ ((regparm (3))); - int __stdcall link (const char *) __attribute__ ((regparm (2))); - int __stdcall utimes (const struct timeval *) __attribute__ ((regparm (2))); - - HANDLE mmap (caddr_t *addr, size_t len, int prot, int flags, _off64_t off); - int munmap (HANDLE h, caddr_t addr, size_t len); - int msync (HANDLE h, caddr_t addr, size_t len, int flags); - bool fixup_mmap_after_fork (HANDLE h, int prot, int flags, - _off64_t offset, DWORD size, void *address); - int mkdir (mode_t mode); - int rmdir (); - DIR *opendir (); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - _off64_t telldir (DIR *); - void seekdir (DIR *, _off64_t); - void rewinddir (DIR *); - int closedir (DIR *); - - ssize_t __stdcall pread (void *, size_t, _off64_t) __attribute__ ((regparm (3))); - ssize_t __stdcall pwrite (void *, size_t, _off64_t) __attribute__ ((regparm (3))); -}; - -class fhandler_cygdrive: public fhandler_disk_file -{ - int ndrives; - const char *pdrive; - void set_drives (); - public: - fhandler_cygdrive (); - int open (int flags, mode_t mode); - int close (); - DIR *opendir (); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - void rewinddir (DIR *); - int closedir (DIR *); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); -}; - -class fhandler_serial: public fhandler_base -{ - private: - size_t vmin_; /* from termios */ - unsigned int vtime_; /* from termios */ - pid_t pgrp_; - int rts; /* for Windows 9x purposes only */ - int dtr; /* for Windows 9x purposes only */ - - public: - int overlapped_armed; - OVERLAPPED io_status; - DWORD ev; - - /* Constructor */ - fhandler_serial (); - - int open (int flags, mode_t mode); - int close (); - void init (HANDLE h, DWORD a, mode_t flags); - void overlapped_setup (); - int dup (fhandler_base *child); - void raw_read (void *ptr, size_t& ulen); - int raw_write (const void *ptr, size_t ulen); - int tcsendbreak (int); - int tcdrain (); - int tcflow (int); - int ioctl (unsigned int cmd, void *); - int switch_modem_lines (int set, int clr); - int tcsetattr (int a, const struct termios *t); - int tcgetattr (struct termios *t); - _off64_t lseek (_off64_t, int) { return 0; } - int tcflush (int); - int is_tty () { return 1; } - void fixup_after_fork (HANDLE parent); - void fixup_after_exec (); - - /* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we - don't use it for permissions checking. fhandler_tty_slave does - permission checking on pgrps. */ - virtual int tcgetpgrp () { return pgrp_; } - virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; } - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - bool is_slow () {return 1;} -}; - -#define acquire_output_mutex(ms) \ - __acquire_output_mutex (__PRETTY_FUNCTION__, __LINE__, ms); - -#define release_output_mutex() \ - __release_output_mutex (__PRETTY_FUNCTION__, __LINE__); - -class tty; -class tty_min; -class fhandler_termios: public fhandler_base -{ - protected: - HANDLE output_handle; - virtual void doecho (const void *, DWORD) {}; - virtual int accept_input () {return 1;}; - public: - tty_min *tc; - fhandler_termios () : - fhandler_base () - { - need_fork_fixup (true); - } - HANDLE& get_output_handle () { return output_handle; } - line_edit_status line_edit (const char *rptr, int nread, termios&); - void set_output_handle (HANDLE h) { output_handle = h; } - void tcinit (tty_min *this_tc, bool force = false); - virtual int is_tty () { return 1; } - int tcgetpgrp (); - int tcsetpgrp (int pid); - bg_check_types bg_check (int sig); - virtual DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms) {return 1;} - virtual void __release_output_mutex (const char *fn, int ln) {} - void echo_erase (int force = 0); - virtual _off64_t lseek (_off64_t, int); -}; - -enum ansi_intensity -{ - INTENSITY_INVISIBLE, - INTENSITY_DIM, - INTENSITY_NORMAL, - INTENSITY_BOLD -}; - -#define normal 0 -#define gotesc 1 -#define gotsquare 2 -#define gotarg1 3 -#define gotrsquare 4 -#define gotcommand 5 -#define gettitle 6 -#define eattitle 7 -#define MAXARGS 10 - -class dev_console -{ - WORD default_color, underline_color, dim_color; - - /* Used to determine if an input keystroke should be modified with META. */ - int meta_mask; - -/* Output state */ - int state_; - int args_[MAXARGS]; - int nargs_; - unsigned rarg; - bool saw_question_mark; - bool alternate_charset_active; - bool metabit; - - char my_title_buf [TITLESIZE + 1]; - - WORD current_win32_attr; - ansi_intensity intensity; - bool underline, blink, reverse; - WORD fg, bg; - - /* saved cursor coordinates */ - int savex, savey; - - /* saved screen */ - COORD savebufsiz; - PCHAR_INFO savebuf; - - struct - { - short Top, Bottom; - } scroll_region; - struct - { - SHORT winTop; - SHORT winBottom; - COORD dwWinSize; - COORD dwBufferSize; - COORD dwCursorPosition; - WORD wAttributes; - } info; - - COORD dwLastCursorPosition; - DWORD dwLastButtonState; - int nModifiers; - - bool insert_mode; - bool use_mouse; - bool raw_win32_keyboard_mode; - - bool con_to_str (char *d, const char *s, DWORD sz); - bool str_to_con (char *d, const char *s, DWORD sz); - void set_color (HANDLE); - bool fillin_info (HANDLE); - void set_default_attr (); - - friend class fhandler_console; -}; - -/* This is a input and output console handle */ -class fhandler_console: public fhandler_termios -{ - private: - static dev_console *dev_state; - static bool invisible_console; - -/* Output calls */ - void set_default_attr (); - - void clear_screen (int, int, int, int); - void scroll_screen (int, int, int, int, int, int); - void cursor_set (bool, int, int); - void cursor_get (int *, int *); - void cursor_rel (int, int); - const unsigned char *write_normal (unsigned const char*, unsigned const char *); - void char_command (char); - bool set_raw_win32_keyboard_mode (bool); - int output_tcsetattr (int a, const struct termios *t); - -/* Input calls */ - int igncr_enabled (); - int input_tcsetattr (int a, const struct termios *t); - void set_cursor_maybe (); - - public: - fhandler_console (); - - fhandler_console* is_console () { return this; } - - int open (int flags, mode_t mode = 0); - - int write (const void *ptr, size_t len); - void doecho (const void *str, DWORD len) { (void) write (str, len); } - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - int close (); - - int tcflush (int); - int tcsetattr (int a, const struct termios *t); - int tcgetattr (struct termios *t); - - /* Special dup as we must dup two handles */ - int dup (fhandler_base *child); - - int ioctl (unsigned int cmd, void *); - void init (HANDLE, DWORD, mode_t); - bool mouse_aware () {return dev_state->use_mouse;} - - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - void fixup_after_fork_exec (bool); - void fixup_after_exec () {fixup_after_fork_exec (true);} - void fixup_after_fork (HANDLE) {fixup_after_fork_exec (false);} - void set_close_on_exec (bool val); - void set_input_state (); - void send_winch_maybe (); - static tty_min *get_tty_stuff (int); - bool is_slow () {return 1;} - static bool need_invisible (); - static bool has_a () {return !invisible_console;} -}; - -class fhandler_tty_common: public fhandler_termios -{ - public: - fhandler_tty_common () - : fhandler_termios (), output_done_event (NULL), - ioctl_request_event (NULL), ioctl_done_event (NULL), output_mutex (NULL), - input_mutex (NULL), input_available_event (NULL) - { - // nothing to do - } - HANDLE output_done_event; // Raised by master when tty's output buffer - // written. Write status in tty::write_retval. - HANDLE ioctl_request_event; // Raised by slave to perform ioctl() request. - // Ioctl() request in tty::cmd/arg. - HANDLE ioctl_done_event; // Raised by master on ioctl() completion. - // Ioctl() status in tty::ioctl_retval. - HANDLE output_mutex, input_mutex; - HANDLE input_available_event; - - DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms); - void __release_output_mutex (const char *fn, int ln); - - tty *get_ttyp () { return (tty *) tc; } - - int close (); - _off64_t lseek (_off64_t, int); - void set_close_on_exec (bool val); - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - bool is_slow () {return 1;} -}; - -class fhandler_tty_slave: public fhandler_tty_common -{ - HANDLE inuse; // used to indicate that a tty is in use - public: - /* Constructor */ - fhandler_tty_slave (); - - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - void init (HANDLE, DWORD, mode_t); - - int tcsetattr (int a, const struct termios *t); - int tcgetattr (struct termios *t); - int tcflush (int); - int ioctl (unsigned int cmd, void *); - int close (); - int dup (fhandler_base *child); - void fixup_after_fork (HANDLE parent); - void fixup_after_exec (); - - select_record *select_read (select_record *s); - int cygserver_attach_tty (HANDLE*, HANDLE*); - int get_unit (); - virtual char const *ttyname () { return pc.dev.name; } -}; - -class fhandler_pty_master: public fhandler_tty_common -{ - int pktmode; // non-zero if pty in a packet mode. -public: - int need_nl; // Next read should start with \n - DWORD dwProcessId; // Owner of master handles - - /* Constructor */ - fhandler_pty_master (); - - int process_slave_output (char *buf, size_t len, int pktmode_on); - void doecho (const void *str, DWORD len); - int accept_input (); - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - int close (); - - int tcsetattr (int a, const struct termios *t); - int tcgetattr (struct termios *t); - int tcflush (int); - int ioctl (unsigned int cmd, void *); - - char *ptsname (); - - HANDLE from_master, to_master; - bool hit_eof (); - bool setup (bool); - int dup (fhandler_base *); - void fixup_after_fork (HANDLE parent); - void fixup_after_exec (); -}; - -class fhandler_tty_master: public fhandler_pty_master -{ - public: - /* Constructor */ - fhandler_console *console; // device handler to perform real i/o. - - fhandler_tty_master (); - int init (); - int init_console (); - void set_winsize (bool); - bool is_slow () {return 1;} -}; - -class fhandler_dev_null: public fhandler_base -{ - public: - fhandler_dev_null (); - int open (int, mode_t); - - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); -}; - -class fhandler_dev_zero: public fhandler_base -{ - public: - fhandler_dev_zero (); - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - _off64_t lseek (_off64_t offset, int whence); - - virtual HANDLE mmap (caddr_t *addr, size_t len, int prot, - int flags, _off64_t off); - virtual int munmap (HANDLE h, caddr_t addr, size_t len); - virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags); - virtual bool fixup_mmap_after_fork (HANDLE h, int prot, int flags, - _off64_t offset, DWORD size, - void *address); -}; - -class fhandler_dev_random: public fhandler_base -{ - protected: - HCRYPTPROV crypt_prov; - long pseudo; - - bool crypt_gen_random (void *ptr, size_t len); - int pseudo_write (const void *ptr, size_t len); - int pseudo_read (void *ptr, size_t len); - - public: - fhandler_dev_random (); - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - _off64_t lseek (_off64_t offset, int whence); - int close (); - int dup (fhandler_base *child); -}; - -class fhandler_dev_mem: public fhandler_base -{ - protected: - DWORD mem_size; - _off64_t pos; - - public: - fhandler_dev_mem (); - ~fhandler_dev_mem (); - - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t ulen); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - _off64_t lseek (_off64_t offset, int whence); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - int dup (fhandler_base *child); - - HANDLE mmap (caddr_t *addr, size_t len, int prot, int flags, _off64_t off); - int munmap (HANDLE h, caddr_t addr, size_t len); - int msync (HANDLE h, caddr_t addr, size_t len, int flags); - bool fixup_mmap_after_fork (HANDLE h, int prot, int flags, - _off64_t offset, DWORD size, void *address); -} ; - -class fhandler_dev_clipboard: public fhandler_base -{ - _off64_t pos; - void *membuffer; - size_t msize; - bool eof; - public: - fhandler_dev_clipboard (); - int is_windows () { return 1; } - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - _off64_t lseek (_off64_t offset, int whence); - int close (); - - int dup (fhandler_base *child); - void fixup_after_exec (); -}; - -class fhandler_windows: public fhandler_base -{ - private: - HWND hWnd_; // the window whose messages are to be retrieved by read() call - int method_; // write method (Post or Send) - public: - fhandler_windows (); - int is_windows () { return 1; } - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - int ioctl (unsigned int cmd, void *); - _off64_t lseek (_off64_t, int) { return 0; } - int close () { return 0; } - - void set_close_on_exec (bool val); - void fixup_after_fork (HANDLE parent); - select_record *select_read (select_record *s); - select_record *select_write (select_record *s); - select_record *select_except (select_record *s); - bool is_slow () {return 1;} -}; - -class fhandler_dev_dsp: public fhandler_base -{ - public: - class Audio; - class Audio_out; - class Audio_in; - private: - int audioformat_; - int audiofreq_; - int audiobits_; - int audiochannels_; - Audio_out *audio_out_; - Audio_in *audio_in_; - public: - fhandler_dev_dsp (); - - int open (int flags, mode_t mode = 0); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - int ioctl (unsigned int cmd, void *); - _off64_t lseek (_off64_t, int); - int close (); - int dup (fhandler_base *child); - void fixup_after_fork (HANDLE parent); - void fixup_after_exec (); - private: - void close_audio_in (); - void close_audio_out (bool immediately = false); -}; - -class fhandler_virtual : public fhandler_base -{ - protected: - char *filebuf; - size_t bufalloc; - _off64_t filesize; - _off64_t position; - int fileid; // unique within each class - public: - - fhandler_virtual (); - virtual ~fhandler_virtual(); - - virtual int exists(); - virtual DIR *opendir (); - _off64_t telldir (DIR *); - void seekdir (DIR *, _off64_t); - void rewinddir (DIR *); - int closedir (DIR *); - int write (const void *ptr, size_t len); - void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3))); - _off64_t lseek (_off64_t, int); - int dup (fhandler_base *child); - int open (int flags, mode_t mode = 0); - int close (); - int __stdcall fstat (struct stat *buf) __attribute__ ((regparm (2))); - int __stdcall fchmod (mode_t mode) __attribute__ ((regparm (1))); - int __stdcall fchown (__uid32_t uid, __gid32_t gid) __attribute__ ((regparm (2))); - int __stdcall facl (int, int, __acl32 *) __attribute__ ((regparm (3))); - virtual bool fill_filebuf (); - char *get_filebuf () { return filebuf; } - void fixup_after_exec (); -}; - -class fhandler_proc: public fhandler_virtual -{ - public: - fhandler_proc (); - int exists(); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - static DWORD get_proc_fhandler(const char *path); - - int open (int flags, mode_t mode = 0); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - bool fill_filebuf (); -}; - -class fhandler_netdrive: public fhandler_virtual -{ - public: - fhandler_netdrive (); - int exists(); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - void seekdir (DIR *, _off64_t); - void rewinddir (DIR *); - int closedir (DIR *); - int open (int flags, mode_t mode = 0); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); -}; - -class fhandler_registry: public fhandler_proc -{ - private: - char *value_name; - DWORD wow64; - int prefix_len; - public: - fhandler_registry (); - void set_name (path_conv &pc); - int exists(); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - _off64_t telldir (DIR *); - void seekdir (DIR *, _off64_t); - void rewinddir (DIR *); - int closedir (DIR *); - - int open (int flags, mode_t mode = 0); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - bool fill_filebuf (); - int close (); -}; - -class pinfo; -class fhandler_process: public fhandler_proc -{ - pid_t pid; - public: - fhandler_process (); - int exists(); - DIR *opendir (); - int readdir (DIR *, dirent *) __attribute__ ((regparm (3))); - int open (int flags, mode_t mode = 0); - int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2))); - bool fill_filebuf (); -}; - -struct fhandler_nodevice: public fhandler_base -{ - fhandler_nodevice (); - int open (int flags, mode_t mode = 0); - // int __stdcall fstat (struct __stat64 *buf, path_conv *); -}; - -#define report_tty_counts(fh, call, use_op) \ - termios_printf ("%s %s, %susecount %d",\ - fh->ttyname (), call,\ - use_op, ((fhandler_tty_slave *) fh)->archetype->usecount); - -typedef union -{ - char __base[sizeof (fhandler_base)]; - char __console[sizeof (fhandler_console)]; - char __cygdrive[sizeof (fhandler_cygdrive)]; - char __dev_clipboard[sizeof (fhandler_dev_clipboard)]; - char __dev_dsp[sizeof (fhandler_dev_dsp)]; - char __dev_floppy[sizeof (fhandler_dev_floppy)]; - char __dev_mem[sizeof (fhandler_dev_mem)]; - char __dev_null[sizeof (fhandler_dev_null)]; - char __dev_random[sizeof (fhandler_dev_random)]; - char __dev_raw[sizeof (fhandler_dev_raw)]; - char __dev_tape[sizeof (fhandler_dev_tape)]; - char __dev_zero[sizeof (fhandler_dev_zero)]; - char __disk_file[sizeof (fhandler_disk_file)]; - char __fifo[sizeof (fhandler_fifo)]; - char __mailslot[sizeof (fhandler_mailslot)]; - char __netdrive[sizeof (fhandler_netdrive)]; - char __nodevice[sizeof (fhandler_nodevice)]; - char __pipe[sizeof (fhandler_pipe)]; - char __proc[sizeof (fhandler_proc)]; - char __process[sizeof (fhandler_process)]; - char __pty_master[sizeof (fhandler_pty_master)]; - char __registry[sizeof (fhandler_registry)]; - char __serial[sizeof (fhandler_serial)]; - char __socket[sizeof (fhandler_socket)]; - char __termios[sizeof (fhandler_termios)]; - char __tty_common[sizeof (fhandler_tty_common)]; - char __tty_master[sizeof (fhandler_tty_master)]; - char __tty_slave[sizeof (fhandler_tty_slave)]; - char __virtual[sizeof (fhandler_virtual)]; - char __windows[sizeof (fhandler_windows)]; -} fhandler_union; - -struct select_record -{ - int fd; - HANDLE h; - fhandler_base *fh; - int thread_errno; - bool windows_handle; - bool read_ready, write_ready, except_ready; - bool read_selected, write_selected, except_selected; - bool except_on_write; - int (*startup) (select_record *me, class select_stuff *stuff); - int (*peek) (select_record *, bool); - int (*verify) (select_record *me, fd_set *readfds, fd_set *writefds, - fd_set *exceptfds); - void (*cleanup) (select_record *me, class select_stuff *stuff); - struct select_record *next; - void set_select_errno () {__seterrno (); thread_errno = errno;} - int saw_error () {return thread_errno;} - - select_record (fhandler_base *in_fh = NULL) : fd (0), h (NULL), - fh (in_fh), thread_errno (0), windows_handle (false), - read_ready (false), write_ready (false), except_ready (false), - read_selected (false), write_selected (false), - except_selected (false), except_on_write (false), - startup (NULL), peek (NULL), verify (NULL), cleanup (NULL), - next (NULL) {} -}; - -class select_stuff -{ - public: - ~select_stuff (); - bool always_ready, windows_used; - select_record start; - void *device_specific_pipe; - void *device_specific_socket; - void *device_specific_serial; - void *device_specific_mailslot; - - int test_and_set (int i, fd_set *readfds, fd_set *writefds, - fd_set *exceptfds); - int poll (fd_set *readfds, fd_set *writefds, fd_set *exceptfds); - int wait (fd_set *readfds, fd_set *writefds, fd_set *exceptfds, DWORD ms); - void cleanup (); - select_stuff (): always_ready (0), windows_used (0), start (0), - device_specific_pipe (0), - device_specific_socket (0), - device_specific_serial (0), - device_specific_mailslot (0) {} -}; - -void __stdcall set_console_state_for_spawn (bool); -#endif /* _FHANDLER_H_ */ |