4 #include <stddef.h> /* for wchar_t */
7 * Global variables. Most modules declare these `extern', but
8 * window.c will do `#define PUTTY_DO_GLOBALS' before including this
9 * module, and so will get them properly defined.
12 #ifdef PUTTY_DO_GLOBALS
21 typedef struct config_tag Config
;
22 typedef struct backend_tag Backend
;
23 typedef struct terminal_tag Terminal
;
30 /* Three attribute types:
31 * The ATTRs (normal attributes) are stored with the characters in
32 * the main display arrays
34 * The TATTRs (temporary attributes) are generated on the fly, they
35 * can overlap with characters but not with normal attributes.
37 * The LATTRs (line attributes) are an entirely disjoint space of
40 * ATTR_INVALID is an illegal colour combination.
43 #define TATTR_ACTCURS 0x40000000UL /* active cursor (block) */
44 #define TATTR_PASCURS 0x20000000UL /* passive cursor (box) */
45 #define TATTR_RIGHTCURS 0x10000000UL /* cursor-on-RHS */
46 #define TATTR_COMBINING 0x80000000UL /* combining characters */
48 #define LATTR_NORM 0x00000000UL
49 #define LATTR_WIDE 0x00000001UL
50 #define LATTR_TOP 0x00000002UL
51 #define LATTR_BOT 0x00000003UL
52 #define LATTR_MODE 0x00000003UL
53 #define LATTR_WRAPPED 0x00000010UL
54 #define LATTR_WRAPPED2 0x00000020UL
56 #define ATTR_INVALID 0x03FFU
58 /* Like Linux use the F000 page for direct to font. */
59 #define CSET_OEMCP 0x0000F000UL /* OEM Codepage DTF */
60 #define CSET_ACP 0x0000F100UL /* Ansi Codepage DTF */
62 /* These are internal use overlapping with the UTF-16 surrogates */
63 #define CSET_ASCII 0x0000D800UL /* normal ASCII charset ESC ( B */
64 #define CSET_LINEDRW 0x0000D900UL /* line drawing charset ESC ( 0 */
65 #define CSET_SCOACS 0x0000DA00UL /* SCO Alternate charset */
66 #define CSET_GBCHR 0x0000DB00UL /* UK variant charset ESC ( A */
67 #define CSET_MASK 0xFFFFFF00UL /* Character set mask */
69 #define DIRECT_CHAR(c) ((c&0xFFFFFC00)==0xD800)
70 #define DIRECT_FONT(c) ((c&0xFFFFFE00)==0xF000)
72 #define UCSERR (CSET_LINEDRW|'a') /* UCS Format error character. */
74 * UCSWIDE is a special value used in the terminal data to signify
75 * the character cell containing the right-hand half of a CJK wide
76 * character. We use 0xDFFF because it's part of the surrogate
77 * range and hence won't be used for anything else (it's impossible
78 * to input it via UTF-8 because our UTF-8 decoder correctly
79 * rejects surrogates).
81 #define UCSWIDE 0xDFFF
83 #define ATTR_NARROW 0x800000U
84 #define ATTR_WIDE 0x400000U
85 #define ATTR_BOLD 0x040000U
86 #define ATTR_UNDER 0x080000U
87 #define ATTR_REVERSE 0x100000U
88 #define ATTR_BLINK 0x200000U
89 #define ATTR_FGMASK 0x0001FFU
90 #define ATTR_BGMASK 0x03FE00U
91 #define ATTR_COLOURS 0x03FFFFU
92 #define ATTR_FGSHIFT 0
93 #define ATTR_BGSHIFT 9
96 * The definitive list of colour numbers stored in terminal
97 * attribute words is kept here. It is:
99 * - 0-7 are ANSI colours (KRGYBMCW).
100 * - 8-15 are the bold versions of those colours.
101 * - 16-255 are the remains of the xterm 256-colour mode (a
102 * 216-colour cube with R at most significant and B at least,
103 * followed by a uniform series of grey shades running between
104 * black and white but not including either on grounds of
106 * - 256 is default foreground
107 * - 257 is default bold foreground
108 * - 258 is default background
109 * - 259 is default bold background
110 * - 260 is cursor foreground
111 * - 261 is cursor background
114 #define ATTR_DEFFG (256 << ATTR_FGSHIFT)
115 #define ATTR_DEFBG (258 << ATTR_BGSHIFT)
116 #define ATTR_DEFAULT (ATTR_DEFFG | ATTR_DEFBG)
121 char *buffer
; /* so memory can be freed later */
124 struct unicode_data
{
129 wchar_t unitab_scoacs
[256];
130 wchar_t unitab_line
[256];
131 wchar_t unitab_font
[256];
132 wchar_t unitab_xterm
[256];
133 wchar_t unitab_oemcp
[256];
134 unsigned char unitab_ctrl
[256];
137 #define LGXF_OVR 1 /* existing logfile overwrite */
138 #define LGXF_APN 0 /* existing logfile append */
139 #define LGXF_ASK -1 /* existing logfile ask */
140 #define LGTYP_NONE 0 /* logmode: no logging */
141 #define LGTYP_ASCII 1 /* logmode: pure ascii */
142 #define LGTYP_DEBUG 2 /* logmode: all chars of traffic */
143 #define LGTYP_PACKETS 3 /* logmode: SSH data packets */
146 /* Actual special commands. Originally Telnet, but some codes have
147 * been re-used for similar specials in other protocols. */
148 TS_AYT
, TS_BRK
, TS_SYNCH
, TS_EC
, TS_EL
, TS_GA
, TS_NOP
, TS_ABORT
,
149 TS_AO
, TS_IP
, TS_SUSP
, TS_EOR
, TS_EOF
, TS_LECHO
, TS_RECHO
, TS_PING
,
151 /* Special command for SSH. */
153 /* POSIX-style signals. (not Telnet) */
154 TS_SIGABRT
, TS_SIGALRM
, TS_SIGFPE
, TS_SIGHUP
, TS_SIGILL
,
155 TS_SIGINT
, TS_SIGKILL
, TS_SIGPIPE
, TS_SIGQUIT
, TS_SIGSEGV
,
156 TS_SIGTERM
, TS_SIGUSR1
, TS_SIGUSR2
,
157 /* Pseudo-specials used for constructing the specials menu. */
158 TS_SEP
, /* Separator */
159 TS_SUBMENU
, /* Start a new submenu with specified name */
160 TS_EXITMENU
/* Exit current submenu or end of specials */
163 struct telnet_special
{
170 MBT_LEFT
, MBT_MIDDLE
, MBT_RIGHT
, /* `raw' button designations */
171 MBT_SELECT
, MBT_EXTEND
, MBT_PASTE
, /* `cooked' button designations */
172 MBT_WHEEL_UP
, MBT_WHEEL_DOWN
/* mouse wheel */
176 MA_NOTHING
, MA_CLICK
, MA_2CLK
, MA_3CLK
, MA_DRAG
, MA_RELEASE
179 /* Keyboard modifiers -- keys the user is actually holding down */
181 #define PKM_SHIFT 0x01
182 #define PKM_CONTROL 0x02
183 #define PKM_META 0x04
186 /* Keyboard flags that aren't really modifiers */
187 #define PKF_CAPSLOCK 0x10
188 #define PKF_NUMLOCK 0x20
189 #define PKF_REPEAT 0x40
191 /* Stand-alone keysyms for function keys */
194 PK_NULL
, /* No symbol for this key */
195 /* Main keypad keys */
196 PK_ESCAPE
, PK_TAB
, PK_BACKSPACE
, PK_RETURN
, PK_COMPOSE
,
198 PK_HOME
, PK_INSERT
, PK_DELETE
, PK_END
, PK_PAGEUP
, PK_PAGEDOWN
,
200 PK_UP
, PK_DOWN
, PK_RIGHT
, PK_LEFT
, PK_REST
,
201 /* Numeric keypad */ /* Real one looks like: */
202 PK_PF1
, PK_PF2
, PK_PF3
, PK_PF4
, /* PF1 PF2 PF3 PF4 */
203 PK_KPCOMMA
, PK_KPMINUS
, PK_KPDECIMAL
, /* 7 8 9 - */
204 PK_KP0
, PK_KP1
, PK_KP2
, PK_KP3
, PK_KP4
, /* 4 5 6 , */
205 PK_KP5
, PK_KP6
, PK_KP7
, PK_KP8
, PK_KP9
, /* 1 2 3 en- */
206 PK_KPBIGPLUS
, PK_KPENTER
, /* 0 . ter */
208 PK_F1
, PK_F2
, PK_F3
, PK_F4
, PK_F5
,
209 PK_F6
, PK_F7
, PK_F8
, PK_F9
, PK_F10
,
210 PK_F11
, PK_F12
, PK_F13
, PK_F14
, PK_F15
,
211 PK_F16
, PK_F17
, PK_F18
, PK_F19
, PK_F20
,
215 #define PK_ISEDITING(k) ((k) >= PK_HOME && (k) <= PK_PAGEDOWN)
216 #define PK_ISCURSOR(k) ((k) >= PK_UP && (k) <= PK_REST)
217 #define PK_ISKEYPAD(k) ((k) >= PK_PF1 && (k) <= PK_KPENTER)
218 #define PK_ISFKEY(k) ((k) >= PK_F1 && (k) <= PK_F20)
221 VT_XWINDOWS
, VT_OEMANSI
, VT_OEMONLY
, VT_POORMAN
, VT_UNICODE
226 * SSH ciphers (both SSH1 and SSH2)
228 CIPHER_WARN
, /* pseudo 'cipher' */
231 CIPHER_AES
, /* (SSH 2 only) */
233 CIPHER_MAX
/* no. ciphers (inc warn) */
238 * Several different bits of the PuTTY configuration seem to be
239 * three-way settings whose values are `always yes', `always
240 * no', and `decide by some more complex automated means'. This
241 * is true of line discipline options (local echo and line
242 * editing), proxy DNS, Close On Exit, and SSH server bug
243 * workarounds. Accordingly I supply a single enum here to deal
246 FORCE_ON
, FORCE_OFF
, AUTO
253 PROXY_NONE
, PROXY_SOCKS4
, PROXY_SOCKS5
,
254 PROXY_HTTP
, PROXY_TELNET
, PROXY_CMD
259 * Line discipline options which the backend might try to control.
261 LD_EDIT
, /* local line editing */
262 LD_ECHO
/* local echo */
266 /* Protocol back ends. (cfg.protocol) */
267 PROT_RAW
, PROT_TELNET
, PROT_RLOGIN
, PROT_SSH
271 /* Bell settings (cfg.beep) */
272 BELL_DISABLED
, BELL_DEFAULT
, BELL_VISUAL
, BELL_WAVEFILE
, BELL_PCSPEAKER
276 /* Taskbar flashing indication on bell (cfg.beep_ind) */
277 B_IND_DISABLED
, B_IND_FLASH
, B_IND_STEADY
281 /* Resize actions (cfg.resize_action) */
282 RESIZE_TERM
, RESIZE_DISABLED
, RESIZE_FONT
, RESIZE_EITHER
286 /* Function key types (cfg.funky_type) */
296 const char *(*init
) (void *frontend_handle
, void **backend_handle
,
298 char *host
, int port
, char **realhost
, int nodelay
,
300 void (*free
) (void *handle
);
301 /* back->reconfig() passes in a replacement configuration. */
302 void (*reconfig
) (void *handle
, Config
*cfg
);
303 /* back->send() returns the current amount of buffered data. */
304 int (*send
) (void *handle
, char *buf
, int len
);
305 /* back->sendbuffer() does the same thing but without attempting a send */
306 int (*sendbuffer
) (void *handle
);
307 void (*size
) (void *handle
, int width
, int height
);
308 void (*special
) (void *handle
, Telnet_Special code
);
309 const struct telnet_special
*(*get_specials
) (void *handle
);
310 Socket(*socket
) (void *handle
);
311 int (*exitcode
) (void *handle
);
312 int (*sendok
) (void *handle
);
313 int (*ldisc
) (void *handle
, int);
314 void (*provide_ldisc
) (void *handle
, void *ldisc
);
315 void (*provide_logctx
) (void *handle
, void *logctx
);
317 * back->unthrottle() tells the back end that the front end
318 * buffer is clearing.
320 void (*unthrottle
) (void *handle
, int);
324 extern struct backend_list
{
331 * Suggested default protocol provided by the backend link module.
332 * The application is free to ignore this.
334 extern const int be_default_protocol
;
337 * Name of this particular application, for use in the config box
338 * and other pieces of text.
340 extern const char *const appname
;
343 * IMPORTANT POLICY POINT: everything in this structure which wants
344 * to be treated like an integer must be an actual, honest-to-
345 * goodness `int'. No enum-typed variables. This is because parts
346 * of the code will want to pass around `int *' pointers to them
347 * and we can't run the risk of porting to some system on which the
348 * enum comes out as a different size from int.
357 int ping_interval
; /* in seconds */
361 char proxy_exclude_list
[512];
363 int even_proxy_localhost
;
365 char proxy_host
[512];
367 char proxy_username
[128];
368 char proxy_password
[128];
369 char proxy_telnet_command
[512];
371 char remote_cmd
[512];
372 char remote_cmd2
[512]; /* fallback if the first fails
373 * (used internally for scp) */
374 char *remote_cmd_ptr
; /* might point to a larger command
375 * but never for loading/saving */
376 char *remote_cmd_ptr2
; /* might point to a larger command
377 * but never for loading/saving */
381 int change_username
; /* allow username switching in SSH2 */
382 int ssh_cipherlist
[CIPHER_MAX
];
384 int sshprot
; /* use v1 or v2 when both available */
385 int ssh2_des_cbc
; /* "des-cbc" nonstandard SSH2 cipher */
388 int ssh_subsys
; /* run a subsystem rather than a command */
389 int ssh_subsys2
; /* fallback to go with remote_cmd2 */
390 int ssh_no_shell
; /* avoid running a shell */
394 char environmt
[1024]; /* VAR\tvalue\0VAR\tvalue\0\0 */
396 char localusername
[100];
399 /* Keyboard options */
403 int no_applic_c
; /* totally disable app cursor keys */
404 int no_applic_k
; /* totally disable app keypad */
405 int no_mouse_rep
; /* totally disable mouse reporting */
406 int no_remote_resize
; /* disable remote resizing */
407 int no_alt_screen
; /* disable alternate screen */
408 int no_remote_wintitle
; /* disable remote retitling */
409 int no_dbackspace
; /* disable destructive backspace */
410 int no_remote_charset
; /* disable remote charset config */
411 int no_remote_qtitle
; /* disable remote win title query */
417 int alt_f4
; /* is it special? */
418 int alt_space
; /* is it special? */
419 int alt_only
; /* is it special? */
423 int fullscreenonaltenter
;
426 int erase_to_scrollback
;
429 char wintitle
[256]; /* initial window title */
430 /* Terminal options */
435 int cursor_type
; /* 0=block 1=underline 2=vertical */
439 int bellovl
; /* bell overload protection active? */
440 int bellovl_n
; /* number of bells to cause overload */
441 int bellovl_t
; /* time interval for overload (seconds) */
442 int bellovl_s
; /* period of silence to re-enable bell (s) */
443 Filename bell_wavefile
;
445 int scrollbar_in_fullscreen
;
452 Filename logfilename
;
461 char answerback
[256];
467 int xterm_256_colour
;
471 unsigned char colours
[22][3];
472 /* Selection options */
481 char line_codepage
[128];
483 int xlat_capslockcyr
;
486 char x11_display
[128];
488 /* port forwarding */
489 int lport_acceptall
; /* accept conns from hosts other than localhost */
490 int rport_acceptall
; /* same for remote forwarded ports (SSH2 only) */
492 * The port forwarding string contains a number of
493 * NUL-terminated substrings, terminated in turn by an empty
494 * string (i.e. a second NUL immediately after the previous
495 * one). Each string can be of one of the following forms:
497 * [LR]localport\thost:port
498 * [LR]localaddr:localport\thost:port
500 * Dlocaladdr:localport
503 /* SSH bug compatibility modes */
504 int sshbug_ignore1
, sshbug_plainpw1
, sshbug_rsa1
,
505 sshbug_hmac2
, sshbug_derivekey2
, sshbug_rsapad2
,
506 sshbug_dhgex2
, sshbug_pksessid2
;
507 /* Options for pterm. Should split out into platform-dependent part. */
510 int scrollbar_on_left
;
514 FontSpec wideboldfont
;
515 int shadowboldoffset
;
519 * Some global flags denoting the type of application.
521 * FLAG_VERBOSE is set when the user requests verbose details.
523 * FLAG_STDERR is set in command-line applications (which have a
524 * functioning stderr that it makes sense to write to) and not in
525 * GUI applications (which don't).
527 * FLAG_INTERACTIVE is set when a full interactive shell session is
528 * being run, _either_ because no remote command has been provided
529 * _or_ because the application is GUI and can't run non-
532 * These flags describe the type of _application_ - they wouldn't
533 * vary between individual sessions - and so it's OK to have this
534 * variable be GLOBAL.
536 * Note that additional flags may be defined in platform-specific
537 * headers. It's probably best if those ones start from 0x1000, to
540 #define FLAG_VERBOSE 0x0001
541 #define FLAG_STDERR 0x0002
542 #define FLAG_INTERACTIVE 0x0004
546 * Likewise, these two variables are set up when the application
547 * initialises, and inform all default-settings accesses after
550 GLOBAL
int default_protocol
;
551 GLOBAL
int default_port
;
554 * This is set TRUE by cmdline.c iff a session is loaded with "-load".
556 GLOBAL
int loaded_session
;
558 struct RSAKey
; /* be a little careful of scope */
561 * Exports from window.c.
563 void request_resize(void *frontend
, int, int);
564 void do_text(Context
, int, int, wchar_t *, int, unsigned long, int);
565 void do_cursor(Context
, int, int, wchar_t *, int, unsigned long, int);
566 int char_width(Context ctx
, int uc
);
567 #ifdef OPTIMISE_SCROLL
568 void do_scroll(Context
, int, int, int);
570 void set_title(void *frontend
, char *);
571 void set_icon(void *frontend
, char *);
572 void set_sbar(void *frontend
, int, int, int);
573 Context
get_ctx(void *frontend
);
574 void free_ctx(Context
);
575 void palette_set(void *frontend
, int, int, int, int);
576 void palette_reset(void *frontend
);
577 void write_aclip(void *frontend
, char *, int, int);
578 void write_clip(void *frontend
, wchar_t *, int, int);
579 void get_clip(void *frontend
, wchar_t **, int *);
580 void optimised_move(void *frontend
, int, int, int);
581 void set_raw_mouse_mode(void *frontend
, int);
582 void connection_fatal(void *frontend
, char *, ...);
583 void fatalbox(char *, ...);
584 void modalfatalbox(char *, ...);
586 #pragma noreturn(fatalbox)
587 #pragma noreturn(modalfatalbox)
589 void beep(void *frontend
, int);
590 void begin_session(void *frontend
);
591 void sys_cursor(void *frontend
, int x
, int y
);
592 void request_paste(void *frontend
);
593 void frontend_keypress(void *frontend
);
594 void ldisc_update(void *frontend
, int echo
, int edit
);
595 /* It's the backend's responsibility to invoke this at the start of a
596 * connection, if necessary; it can also invoke it later if the set of
597 * special commands changes. It does not need to invoke it at session
599 void update_specials_menu(void *frontend
);
600 int from_backend(void *frontend
, int is_stderr
, const char *data
, int len
);
601 void notify_remote_exit(void *frontend
);
602 #define OPTIMISE_IS_SCROLL 1
604 void set_iconic(void *frontend
, int iconic
);
605 void move_window(void *frontend
, int x
, int y
);
606 void set_zorder(void *frontend
, int top
);
607 void refresh_window(void *frontend
);
608 void set_zoomed(void *frontend
, int zoomed
);
609 int is_iconic(void *frontend
);
610 void get_window_pos(void *frontend
, int *x
, int *y
);
611 void get_window_pixels(void *frontend
, int *x
, int *y
);
612 char *get_window_title(void *frontend
, int icon
);
614 void cleanup_exit(int);
617 * Exports from noise.c.
619 void noise_get_heavy(void (*func
) (void *, int));
620 void noise_get_light(void (*func
) (void *, int));
621 void noise_regular(void);
622 void noise_ultralight(unsigned long data
);
623 void random_save_seed(void);
624 void random_destroy_seed(void);
627 * Exports from settings.c.
629 char *save_settings(char *section
, int do_host
, Config
* cfg
);
630 void save_open_settings(void *sesskey
, int do_host
, Config
*cfg
);
631 void load_settings(char *section
, int do_host
, Config
* cfg
);
632 void load_open_settings(void *sesskey
, int do_host
, Config
*cfg
);
633 void get_sesslist(struct sesslist
*, int allocate
);
634 void do_defaults(char *, Config
*);
635 void registry_cleanup(void);
638 * Functions used by settings.c to provide platform-specific
641 * (The integer one is expected to return `def' if it has no clear
642 * opinion of its own. This is because there's no integer value
643 * which I can reliably set aside to indicate `nil'. The string
644 * function is perfectly all right returning NULL, of course. The
645 * Filename and FontSpec functions are _not allowed_ to fail to
646 * return, since these defaults _must_ be per-platform.)
648 char *platform_default_s(const char *name
);
649 int platform_default_i(const char *name
, int def
);
650 Filename
platform_default_filename(const char *name
);
651 FontSpec
platform_default_fontspec(const char *name
);
654 * Exports from terminal.c.
657 Terminal
*term_init(Config
*, struct unicode_data
*, void *);
658 void term_free(Terminal
*);
659 void term_size(Terminal
*, int, int, int);
660 void term_paint(Terminal
*, Context
, int, int, int, int, int);
661 void term_scroll(Terminal
*, int, int);
662 void term_pwron(Terminal
*);
663 void term_clrsb(Terminal
*);
664 void term_mouse(Terminal
*, Mouse_Button
, Mouse_Button
, Mouse_Action
,
665 int,int,int,int,int);
666 void term_key(Terminal
*, Key_Sym
, wchar_t *, size_t, unsigned int,
668 void term_deselect(Terminal
*);
669 void term_update(Terminal
*);
670 void term_invalidate(Terminal
*);
671 void term_blink(Terminal
*, int set_cursor
);
672 void term_do_paste(Terminal
*);
673 int term_paste_pending(Terminal
*);
674 void term_paste(Terminal
*);
675 void term_nopaste(Terminal
*);
676 int term_ldisc(Terminal
*, int option
);
677 void term_copyall(Terminal
*);
678 void term_reconfig(Terminal
*, Config
*);
679 void term_seen_key_event(Terminal
*);
680 int term_data(Terminal
*, int is_stderr
, const char *data
, int len
);
681 void term_provide_resize_fn(Terminal
*term
,
682 void (*resize_fn
)(void *, int, int),
684 void term_provide_logctx(Terminal
*term
, void *logctx
);
685 void term_set_focus(Terminal
*term
, int has_focus
);
688 * Exports from logging.c.
690 void *log_init(void *frontend
, Config
*cfg
);
691 void log_free(void *logctx
);
692 void log_reconfig(void *logctx
, Config
*cfg
);
693 void logfopen(void *logctx
);
694 void logfclose(void *logctx
);
695 void logtraffic(void *logctx
, unsigned char c
, int logmode
);
696 void logflush(void *logctx
);
697 void log_eventlog(void *logctx
, const char *string
);
698 enum { PKT_INCOMING
, PKT_OUTGOING
};
699 enum { PKTLOG_EMIT
, PKTLOG_BLANK
, PKTLOG_OMIT
};
705 void log_packet(void *logctx
, int direction
, int type
,
706 char *texttype
, void *data
, int len
,
707 int n_blanks
, const struct logblank_t
*blanks
);
710 * Exports from testback.c
713 extern Backend null_backend
;
714 extern Backend loop_backend
;
717 * Exports from raw.c.
720 extern Backend raw_backend
;
723 * Exports from rlogin.c.
726 extern Backend rlogin_backend
;
729 * Exports from telnet.c.
732 extern Backend telnet_backend
;
735 * Exports from ssh.c. (NB the getline variables have to be GLOBAL
736 * so that PuTTYtel will still compile - otherwise it would depend
740 GLOBAL
int (*ssh_get_line
) (const char *prompt
, char *str
, int maxlen
,
742 GLOBAL
int ssh_getline_pw_only
;
743 extern Backend ssh_backend
;
746 * Exports from ldisc.c.
748 void *ldisc_create(Config
*, Terminal
*, Backend
*, void *, void *);
749 void ldisc_free(void *);
750 void ldisc_send(void *handle
, char *buf
, int len
, int interactive
);
753 * Exports from ldiscucs.c.
755 void lpage_send(void *, int codepage
, char *buf
, int len
, int interactive
);
756 void luni_send(void *, wchar_t * widebuf
, int len
, int interactive
);
759 * Exports from sshrand.c.
762 void random_add_noise(void *noise
, int length
);
763 int random_byte(void);
764 void random_get_savedata(void **data
, int *len
);
765 extern int random_active
;
766 /* The random number subsystem is activated if at least one other entity
767 * within the program expresses an interest in it. So each SSH session
768 * calls random_ref on startup and random_unref on shutdown. */
769 void random_ref(void);
770 void random_unref(void);
773 * Exports from pinger.c.
775 typedef struct pinger_tag
*Pinger
;
776 Pinger
pinger_new(Config
*cfg
, Backend
*back
, void *backhandle
);
777 void pinger_reconfig(Pinger
, Config
*oldcfg
, Config
*newcfg
);
778 void pinger_free(Pinger
);
781 * Exports from misc.c.
787 * Exports from version.c.
792 * Exports from unicode.c.
795 #define CP_UTF8 65001
797 /* void init_ucs(void); -- this is now in platform-specific headers */
798 int is_dbcs_leadbyte(int codepage
, char byte
);
799 int mb_to_wc(int codepage
, int flags
, char *mbstr
, int mblen
,
800 wchar_t *wcstr
, int wclen
);
801 int wc_to_mb(int codepage
, int flags
, wchar_t *wcstr
, int wclen
,
802 char *mbstr
, int mblen
, char *defchr
, int *defused
,
803 struct unicode_data
*ucsdata
);
804 wchar_t xlat_uskbd2cyrllic(int ch
);
805 int check_compose(int first
, int second
);
806 int decode_codepage(char *cp_name
);
807 const char *cp_enumerate (int index
);
808 const char *cp_name(int codepage
);
809 void get_unitab(int codepage
, wchar_t * unitab
, int ftype
);
812 * Exports from wcwidth.c
814 int wcwidth(wchar_t ucs
);
815 int wcswidth(const wchar_t *pwcs
, size_t n
);
818 * Exports from mscrypto.c
821 int crypto_startup();
822 void crypto_wrapup();
826 * Exports from pageantc.c.
828 * agent_query returns 1 for here's-a-response, and 0 for query-in-
829 * progress. In the latter case there will be a call to `callback'
830 * at some future point, passing callback_ctx as the first
831 * parameter and the actual reply data as the second and third.
833 * The response may be a NULL pointer (in either of the synchronous
834 * or asynchronous cases), which indicates failure to receive a
837 int agent_query(void *in
, int inlen
, void **out
, int *outlen
,
838 void (*callback
)(void *, void *, int), void *callback_ctx
);
839 int agent_exists(void);
842 * Exports from wildcard.c
844 const char *wc_error(int value
);
845 int wc_match(const char *wildcard
, const char *target
);
846 int wc_unescape(char *output
, const char *wildcard
);
849 * Exports from windlg.c
851 void logevent(void *frontend
, const char *);
852 void verify_ssh_host_key(void *frontend
, char *host
, int port
, char *keytype
,
853 char *keystr
, char *fingerprint
);
854 void askcipher(void *frontend
, char *ciphername
, int cs
);
855 int askappend(void *frontend
, Filename filename
);
858 * Exports from console.c (that aren't equivalents to things in
861 extern int console_batch_mode
;
862 int console_get_line(const char *prompt
, char *str
, int maxlen
, int is_pw
);
863 void console_provide_logctx(void *logctx
);
864 int is_interactive(void);
867 * Exports from printing.c.
869 typedef struct printer_enum_tag printer_enum
;
870 typedef struct printer_job_tag printer_job
;
871 printer_enum
*printer_start_enum(int *nprinters
);
872 char *printer_get_name(printer_enum
*, int);
873 void printer_finish_enum(printer_enum
*);
874 printer_job
*printer_start_job(char *printer
);
875 void printer_job_data(printer_job
*, void *, int);
876 void printer_finish_job(printer_job
*);
879 * Exports from cmdline.c (and also cmdline_error(), which is
880 * defined differently in various places and required _by_
883 int cmdline_process_param(char *, char *, int, Config
*);
884 void cmdline_run_saved(Config
*);
885 void cmdline_cleanup(void);
886 extern char *cmdline_password
;
887 #define TOOLTYPE_FILETRANSFER 1
888 #define TOOLTYPE_NONNETWORK 2
889 extern int cmdline_tooltype
;
891 void cmdline_error(char *, ...);
894 * Exports from config.c.
897 void setup_config_box(struct controlbox
*b
, struct sesslist
*sesslist
,
898 int midsession
, int protocol
);
901 * Exports from minibidi.c.
903 typedef struct bidi_char
{
905 unsigned short index
;
907 int do_bidi(bidi_char
*line
, int count
);
908 int do_shape(bidi_char
*line
, bidi_char
*to
, int count
);
911 * X11 auth mechanisms we know about.
915 X11_MIT
, /* MIT-MAGIC-COOKIE-1 */
916 X11_XDM
, /* XDM-AUTHORIZATION-1 */
919 extern const char *const x11_authnames
[]; /* declared in x11fwd.c */
922 * Miscellaneous exports from the platform-specific code.
924 Filename
filename_from_str(const char *string
);
925 const char *filename_to_str(const Filename
*fn
);
926 int filename_equal(Filename f1
, Filename f2
);
927 int filename_is_null(Filename fn
);
928 char *get_username(void); /* return value needs freeing */
929 char *get_random_data(int bytes
); /* used in cmdgen.c */
932 * Exports and imports from timing.c.
934 * schedule_timer() asks the front end to schedule a callback to a
935 * timer function in a given number of ticks. The returned value is
936 * the time (in ticks since an arbitrary offset) at which the
937 * callback can be expected. This value will also be passed as the
938 * `now' parameter to the callback function. Hence, you can (for
939 * example) schedule an event at a particular time by calling
940 * schedule_timer() and storing the return value in your context
941 * structure as the time when that event is due. The first time a
942 * callback function gives you that value or more as `now', you do
945 * expire_timer_context() drops all current timers associated with
946 * a given value of ctx (for when you're about to free ctx).
948 * run_timers() is called from the front end when it has reason to
949 * think some timers have reached their moment, or when it simply
950 * needs to know how long to wait next. We pass it the time we
951 * think it is. It returns TRUE and places the time when the next
952 * timer needs to go off in `next', or alternatively it returns
953 * FALSE if there are no timers at all pending.
955 * timer_change_notify() must be supplied by the front end; it
956 * notifies the front end that a new timer has been added to the
957 * list which is sooner than any existing ones. It provides the
958 * time when that timer needs to go off.
960 typedef void (*timer_fn_t
)(void *ctx
, long now
);
961 long schedule_timer(int ticks
, timer_fn_t fn
, void *ctx
);
962 void expire_timer_context(void *ctx
);
963 int run_timers(long now
, long *next
);
964 void timer_change_notify(long next
);