#ifndef PUTTY_PUTTY_H
#define PUTTY_PUTTY_H
-#include <stdio.h> /* for FILENAME_MAX */
+#include <stddef.h> /* for wchar_t */
/*
* Global variables. Most modules declare these `extern', but
#endif
#endif
-typedef struct config_tag Config;
+#ifndef DONE_TYPEDEFS
+#define DONE_TYPEDEFS
+typedef struct conf_tag Conf;
typedef struct backend_tag Backend;
+typedef struct terminal_tag Terminal;
+#endif
#include "puttyps.h"
#include "network.h"
+#include "misc.h"
/*
- * Global variables. Most modules declare these `extern', but
- * window.c will do `#define PUTTY_DO_GLOBALS' before including this
- * module, and so will get them properly defined.
+ * Fingerprints of the PGP master keys that can be used to establish a trust
+ * path between an executable and other files.
*/
-#ifdef PUTTY_DO_GLOBALS
-#define GLOBAL
-#else
-#define GLOBAL extern
-#endif
+#define PGP_RSA_MASTER_KEY_FP \
+ "8F 15 97 DA 25 30 AB 0D 88 D1 92 54 11 CF 0C 4C"
+#define PGP_DSA_MASTER_KEY_FP \
+ "313C 3E76 4B74 C2C5 F2AE 83A8 4F5E 6DF5 6A93 B34E"
/* Three attribute types:
- * The ATTRs (normal attributes) are stored with the characters in the main
- * display arrays
+ * The ATTRs (normal attributes) are stored with the characters in
+ * the main display arrays
*
- * The TATTRs (temporary attributes) are generated on the fly, they can overlap
- * with characters but not with normal attributes.
+ * The TATTRs (temporary attributes) are generated on the fly, they
+ * can overlap with characters but not with normal attributes.
*
- * The LATTRs (line attributes) conflict with no others and only have one
- * value per line. But on area clears the LATTR cells are set to the erase_char
- * (or DEFAULT_ATTR + 'E')
+ * The LATTRs (line attributes) are an entirely disjoint space of
+ * flags.
+ *
+ * The DATTRs (display attributes) are internal to terminal.c (but
+ * defined here because their values have to match the others
+ * here); they reuse the TATTR_* space but are always masked off
+ * before sending to the front end.
*
* ATTR_INVALID is an illegal colour combination.
*/
-#define TATTR_ACTCURS 0x4UL /* active cursor (block) */
-#define TATTR_PASCURS 0x2UL /* passive cursor (box) */
-#define TATTR_RIGHTCURS 0x1UL /* cursor-on-RHS */
+#define TATTR_ACTCURS 0x40000000UL /* active cursor (block) */
+#define TATTR_PASCURS 0x20000000UL /* passive cursor (box) */
+#define TATTR_RIGHTCURS 0x10000000UL /* cursor-on-RHS */
+#define TATTR_COMBINING 0x80000000UL /* combining characters */
+
+#define DATTR_STARTRUN 0x80000000UL /* start of redraw run */
+
+#define TDATTR_MASK 0xF0000000UL
+#define TATTR_MASK (TDATTR_MASK)
+#define DATTR_MASK (TDATTR_MASK)
#define LATTR_NORM 0x00000000UL
-#define LATTR_WIDE 0x01000000UL
-#define LATTR_TOP 0x02000000UL
-#define LATTR_BOT 0x03000000UL
-#define LATTR_MODE 0x03000000UL
-#define LATTR_WRAPPED 0x10000000UL
+#define LATTR_WIDE 0x00000001UL
+#define LATTR_TOP 0x00000002UL
+#define LATTR_BOT 0x00000003UL
+#define LATTR_MODE 0x00000003UL
+#define LATTR_WRAPPED 0x00000010UL /* this line wraps to next */
+#define LATTR_WRAPPED2 0x00000020UL /* with WRAPPED: CJK wide character
+ wrapped to next line, so last
+ single-width cell is empty */
-#define ATTR_INVALID 0x00FF0000UL
+#define ATTR_INVALID 0x03FFFFU
/* Like Linux use the F000 page for direct to font. */
-#define ATTR_OEMCP 0x0000F000UL /* OEM Codepage DTF */
-#define ATTR_ACP 0x0000F100UL /* Ansi Codepage DTF */
+#define CSET_OEMCP 0x0000F000UL /* OEM Codepage DTF */
+#define CSET_ACP 0x0000F100UL /* Ansi Codepage DTF */
/* These are internal use overlapping with the UTF-16 surrogates */
-#define ATTR_ASCII 0x0000D800UL /* normal ASCII charset ESC ( B */
-#define ATTR_LINEDRW 0x0000D900UL /* line drawing charset ESC ( 0 */
-#define ATTR_SCOACS 0x0000DA00UL /* SCO Alternate charset */
-#define ATTR_GBCHR 0x0000DB00UL /* UK variant charset ESC ( A */
-#define CSET_MASK 0x0000FF00UL /* Character set mask; MUST be 0xFF00 */
-
-#define DIRECT_CHAR(c) ((c&0xFC00)==0xD800)
-#define DIRECT_FONT(c) ((c&0xFE00)==0xF000)
-
-#define UCSERR (ATTR_LINEDRW|'a') /* UCS Format error character. */
-#define UCSWIDE 0x303F
-
-#define ATTR_NARROW 0x20000000UL
-#define ATTR_WIDE 0x10000000UL
-#define ATTR_BOLD 0x01000000UL
-#define ATTR_UNDER 0x02000000UL
-#define ATTR_REVERSE 0x04000000UL
-#define ATTR_BLINK 0x08000000UL
-#define ATTR_FGMASK 0x000F0000UL
-#define ATTR_BGMASK 0x00F00000UL
-#define ATTR_COLOURS 0x00FF0000UL
-#define ATTR_FGSHIFT 16
-#define ATTR_BGSHIFT 20
-
-#define ATTR_DEFAULT 0x00980000UL
-#define ATTR_DEFFG 0x00080000UL
-#define ATTR_DEFBG 0x00900000UL
-#define ERASE_CHAR (ATTR_DEFAULT | ATTR_ASCII | ' ')
-#define ATTR_MASK 0xFFFFFF00UL
-#define CHAR_MASK 0x000000FFUL
-
-#define ATTR_CUR_AND (~(ATTR_BOLD|ATTR_REVERSE|ATTR_BLINK|ATTR_COLOURS))
-#define ATTR_CUR_XOR 0x00BA0000UL
-
-GLOBAL int rows, cols, savelines;
-
-GLOBAL int has_focus;
-
-GLOBAL int in_vbell;
-GLOBAL unsigned long vbell_startpoint;
-
-GLOBAL int app_cursor_keys, app_keypad_keys, vt52_mode;
-GLOBAL int repeat_off, cr_lf_return;
-
-GLOBAL int seen_key_event;
-GLOBAL int seen_disp_event;
-GLOBAL int alt_pressed;
-
-GLOBAL int session_closed;
-
-GLOBAL int big_cursor;
-
-GLOBAL char *help_path;
-GLOBAL int help_has_contents;
-
-GLOBAL int nsessions;
-GLOBAL char **sessions;
-
-GLOBAL int utf;
-GLOBAL int dbcs_screenfont;
-GLOBAL int font_codepage;
-GLOBAL int kbd_codepage;
-GLOBAL int line_codepage;
-GLOBAL wchar_t unitab_scoacs[256];
-GLOBAL wchar_t unitab_line[256];
-GLOBAL wchar_t unitab_font[256];
-GLOBAL wchar_t unitab_xterm[256];
-GLOBAL wchar_t unitab_oemcp[256];
-GLOBAL unsigned char unitab_ctrl[256];
-#define in_utf (utf || line_codepage==CP_UTF8)
+#define CSET_ASCII 0x0000D800UL /* normal ASCII charset ESC ( B */
+#define CSET_LINEDRW 0x0000D900UL /* line drawing charset ESC ( 0 */
+#define CSET_SCOACS 0x0000DA00UL /* SCO Alternate charset */
+#define CSET_GBCHR 0x0000DB00UL /* UK variant charset ESC ( A */
+#define CSET_MASK 0xFFFFFF00UL /* Character set mask */
+
+#define DIRECT_CHAR(c) ((c&0xFFFFFC00)==0xD800)
+#define DIRECT_FONT(c) ((c&0xFFFFFE00)==0xF000)
+
+#define UCSERR (CSET_LINEDRW|'a') /* UCS Format error character. */
+/*
+ * UCSWIDE is a special value used in the terminal data to signify
+ * the character cell containing the right-hand half of a CJK wide
+ * character. We use 0xDFFF because it's part of the surrogate
+ * range and hence won't be used for anything else (it's impossible
+ * to input it via UTF-8 because our UTF-8 decoder correctly
+ * rejects surrogates).
+ */
+#define UCSWIDE 0xDFFF
+
+#define ATTR_NARROW 0x800000U
+#define ATTR_WIDE 0x400000U
+#define ATTR_BOLD 0x040000U
+#define ATTR_UNDER 0x080000U
+#define ATTR_REVERSE 0x100000U
+#define ATTR_BLINK 0x200000U
+#define ATTR_FGMASK 0x0001FFU
+#define ATTR_BGMASK 0x03FE00U
+#define ATTR_COLOURS 0x03FFFFU
+#define ATTR_FGSHIFT 0
+#define ATTR_BGSHIFT 9
+
+/*
+ * The definitive list of colour numbers stored in terminal
+ * attribute words is kept here. It is:
+ *
+ * - 0-7 are ANSI colours (KRGYBMCW).
+ * - 8-15 are the bold versions of those colours.
+ * - 16-255 are the remains of the xterm 256-colour mode (a
+ * 216-colour cube with R at most significant and B at least,
+ * followed by a uniform series of grey shades running between
+ * black and white but not including either on grounds of
+ * redundancy).
+ * - 256 is default foreground
+ * - 257 is default bold foreground
+ * - 258 is default background
+ * - 259 is default bold background
+ * - 260 is cursor foreground
+ * - 261 is cursor background
+ */
+
+#define ATTR_DEFFG (256 << ATTR_FGSHIFT)
+#define ATTR_DEFBG (258 << ATTR_BGSHIFT)
+#define ATTR_DEFAULT (ATTR_DEFFG | ATTR_DEFBG)
+
+struct sesslist {
+ int nsessions;
+ char **sessions;
+ char *buffer; /* so memory can be freed later */
+};
+
+struct unicode_data {
+ char **uni_tbl;
+ int dbcs_screenfont;
+ int font_codepage;
+ int line_codepage;
+ wchar_t unitab_scoacs[256];
+ wchar_t unitab_line[256];
+ wchar_t unitab_font[256];
+ wchar_t unitab_xterm[256];
+ wchar_t unitab_oemcp[256];
+ unsigned char unitab_ctrl[256];
+};
#define LGXF_OVR 1 /* existing logfile overwrite */
#define LGXF_APN 0 /* existing logfile append */
#define LGTYP_ASCII 1 /* logmode: pure ascii */
#define LGTYP_DEBUG 2 /* logmode: all chars of traffic */
#define LGTYP_PACKETS 3 /* logmode: SSH data packets */
+#define LGTYP_SSHRAW 4 /* logmode: SSH raw data */
typedef enum {
+ /* Actual special commands. Originally Telnet, but some codes have
+ * been re-used for similar specials in other protocols. */
TS_AYT, TS_BRK, TS_SYNCH, TS_EC, TS_EL, TS_GA, TS_NOP, TS_ABORT,
TS_AO, TS_IP, TS_SUSP, TS_EOR, TS_EOF, TS_LECHO, TS_RECHO, TS_PING,
- TS_EOL
+ TS_EOL,
+ /* Special command for SSH. */
+ TS_REKEY,
+ /* POSIX-style signals. (not Telnet) */
+ TS_SIGABRT, TS_SIGALRM, TS_SIGFPE, TS_SIGHUP, TS_SIGILL,
+ TS_SIGINT, TS_SIGKILL, TS_SIGPIPE, TS_SIGQUIT, TS_SIGSEGV,
+ TS_SIGTERM, TS_SIGUSR1, TS_SIGUSR2,
+ /* Pseudo-specials used for constructing the specials menu. */
+ TS_SEP, /* Separator */
+ TS_SUBMENU, /* Start a new submenu with specified name */
+ TS_EXITMENU /* Exit current submenu or end of specials */
} Telnet_Special;
+struct telnet_special {
+ const char *name;
+ int code;
+};
+
typedef enum {
MBT_NOTHING,
MBT_LEFT, MBT_MIDDLE, MBT_RIGHT, /* `raw' button designations */
MA_NOTHING, MA_CLICK, MA_2CLK, MA_3CLK, MA_DRAG, MA_RELEASE
} Mouse_Action;
+/* Keyboard modifiers -- keys the user is actually holding down */
+
+#define PKM_SHIFT 0x01
+#define PKM_CONTROL 0x02
+#define PKM_META 0x04
+#define PKM_ALT 0x08
+
+/* Keyboard flags that aren't really modifiers */
+#define PKF_CAPSLOCK 0x10
+#define PKF_NUMLOCK 0x20
+#define PKF_REPEAT 0x40
+
+/* Stand-alone keysyms for function keys */
+
typedef enum {
+ PK_NULL, /* No symbol for this key */
+ /* Main keypad keys */
+ PK_ESCAPE, PK_TAB, PK_BACKSPACE, PK_RETURN, PK_COMPOSE,
+ /* Editing keys */
+ PK_HOME, PK_INSERT, PK_DELETE, PK_END, PK_PAGEUP, PK_PAGEDOWN,
+ /* Cursor keys */
+ PK_UP, PK_DOWN, PK_RIGHT, PK_LEFT, PK_REST,
+ /* Numeric keypad */ /* Real one looks like: */
+ PK_PF1, PK_PF2, PK_PF3, PK_PF4, /* PF1 PF2 PF3 PF4 */
+ PK_KPCOMMA, PK_KPMINUS, PK_KPDECIMAL, /* 7 8 9 - */
+ PK_KP0, PK_KP1, PK_KP2, PK_KP3, PK_KP4, /* 4 5 6 , */
+ PK_KP5, PK_KP6, PK_KP7, PK_KP8, PK_KP9, /* 1 2 3 en- */
+ PK_KPBIGPLUS, PK_KPENTER, /* 0 . ter */
+ /* Top row */
+ PK_F1, PK_F2, PK_F3, PK_F4, PK_F5,
+ PK_F6, PK_F7, PK_F8, PK_F9, PK_F10,
+ PK_F11, PK_F12, PK_F13, PK_F14, PK_F15,
+ PK_F16, PK_F17, PK_F18, PK_F19, PK_F20,
+ PK_PAUSE
+} Key_Sym;
+
+#define PK_ISEDITING(k) ((k) >= PK_HOME && (k) <= PK_PAGEDOWN)
+#define PK_ISCURSOR(k) ((k) >= PK_UP && (k) <= PK_REST)
+#define PK_ISKEYPAD(k) ((k) >= PK_PF1 && (k) <= PK_KPENTER)
+#define PK_ISFKEY(k) ((k) >= PK_F1 && (k) <= PK_F20)
+
+enum {
VT_XWINDOWS, VT_OEMANSI, VT_OEMONLY, VT_POORMAN, VT_UNICODE
-} VT_Mode;
+};
enum {
/*
- * SSH ciphers (both SSH1 and SSH2)
+ * SSH-2 key exchange algorithms
+ */
+ KEX_WARN,
+ KEX_DHGROUP1,
+ KEX_DHGROUP14,
+ KEX_DHGEX,
+ KEX_RSA,
+ KEX_MAX
+};
+
+enum {
+ /*
+ * SSH ciphers (both SSH-1 and SSH-2)
*/
CIPHER_WARN, /* pseudo 'cipher' */
CIPHER_3DES,
CIPHER_BLOWFISH,
- CIPHER_AES, /* (SSH 2 only) */
+ CIPHER_AES, /* (SSH-2 only) */
CIPHER_DES,
+ CIPHER_ARCFOUR,
CIPHER_MAX /* no. ciphers (inc warn) */
};
enum {
/*
- * Line discipline option states: off, on, up to the backend.
+ * Several different bits of the PuTTY configuration seem to be
+ * three-way settings whose values are `always yes', `always
+ * no', and `decide by some more complex automated means'. This
+ * is true of line discipline options (local echo and line
+ * editing), proxy DNS, Close On Exit, and SSH server bug
+ * workarounds. Accordingly I supply a single enum here to deal
+ * with them all.
+ */
+ FORCE_ON, FORCE_OFF, AUTO
+};
+
+enum {
+ /*
+ * Proxy types.
*/
- LD_YES, LD_NO, LD_BACKEND
+ PROXY_NONE, PROXY_SOCKS4, PROXY_SOCKS5,
+ PROXY_HTTP, PROXY_TELNET, PROXY_CMD
};
enum {
};
enum {
+ /* Actions on remote window title query */
+ TITLE_NONE, TITLE_EMPTY, TITLE_REAL
+};
+
+enum {
+ /* Protocol back ends. (CONF_protocol) */
+ PROT_RAW, PROT_TELNET, PROT_RLOGIN, PROT_SSH,
+ /* PROT_SERIAL is supported on a subset of platforms, but it doesn't
+ * hurt to define it globally. */
+ PROT_SERIAL
+};
+
+enum {
+ /* Bell settings (CONF_beep) */
+ BELL_DISABLED, BELL_DEFAULT, BELL_VISUAL, BELL_WAVEFILE, BELL_PCSPEAKER
+};
+
+enum {
+ /* Taskbar flashing indication on bell (CONF_beep_ind) */
+ B_IND_DISABLED, B_IND_FLASH, B_IND_STEADY
+};
+
+enum {
+ /* Resize actions (CONF_resize_action) */
+ RESIZE_TERM, RESIZE_DISABLED, RESIZE_FONT, RESIZE_EITHER
+};
+
+enum {
+ /* Function key types (CONF_funky_type) */
+ FUNKY_TILDE,
+ FUNKY_LINUX,
+ FUNKY_XTERM,
+ FUNKY_VT400,
+ FUNKY_VT100P,
+ FUNKY_SCO
+};
+
+enum {
+ FQ_DEFAULT, FQ_ANTIALIASED, FQ_NONANTIALIASED, FQ_CLEARTYPE
+};
+
+enum {
+ SER_PAR_NONE, SER_PAR_ODD, SER_PAR_EVEN, SER_PAR_MARK, SER_PAR_SPACE
+};
+
+enum {
+ SER_FLOW_NONE, SER_FLOW_XONXOFF, SER_FLOW_RTSCTS, SER_FLOW_DSRDTR
+};
+
+/*
+ * Tables of string <-> enum value mappings used in settings.c.
+ * Defined here so that backends can export their GSS library tables
+ * to the cross-platform settings code.
+ */
+struct keyvalwhere {
+ /*
+ * Two fields which define a string and enum value to be
+ * equivalent to each other.
+ */
+ char *s;
+ int v;
+
/*
- * Close On Exit behaviours. (cfg.close_on_exit)
+ * The next pair of fields are used by gprefs() in settings.c to
+ * arrange that when it reads a list of strings representing a
+ * preference list and translates it into the corresponding list
+ * of integers, strings not appearing in the list are entered in a
+ * configurable position rather than uniformly at the end.
*/
- COE_NEVER, /* Never close the window */
- COE_NORMAL, /* Close window on "normal" (non-error) exits only */
- COE_ALWAYS /* Always close the window */
+
+ /*
+ * 'vrel' indicates which other value in the list to place this
+ * element relative to. It should be a value that has occurred in
+ * a 'v' field of some other element of the array, or -1 to
+ * indicate that we simply place relative to one or other end of
+ * the list.
+ *
+ * gprefs will try to process the elements in an order which makes
+ * this field work (i.e. so that the element referenced has been
+ * added before processing this one).
+ */
+ int vrel;
+
+ /*
+ * 'where' indicates whether to place the new value before or
+ * after the one referred to by vrel. -1 means before; +1 means
+ * after.
+ *
+ * When vrel is -1, this also implicitly indicates which end of
+ * the array to use. So vrel=-1, where=-1 means to place _before_
+ * some end of the list (hence, at the last element); vrel=-1,
+ * where=+1 means to place _after_ an end (hence, at the first).
+ */
+ int where;
+};
+
+#ifndef NO_GSSAPI
+extern const int ngsslibs;
+extern const char *const gsslibnames[]; /* for displaying in configuration */
+extern const struct keyvalwhere gsslibkeywords[]; /* for settings.c */
+#endif
+
+extern const char *const ttymodes[];
+
+enum {
+ /*
+ * Network address types. Used for specifying choice of IPv4/v6
+ * in config; also used in proxy.c to indicate whether a given
+ * host name has already been resolved or will be resolved at
+ * the proxy end.
+ */
+ ADDRTYPE_UNSPEC, ADDRTYPE_IPV4, ADDRTYPE_IPV6, ADDRTYPE_NAME
};
struct backend_tag {
- char *(*init) (char *host, int port, char **realhost, int nodelay);
+ const char *(*init) (void *frontend_handle, void **backend_handle,
+ Conf *conf, char *host, int port, char **realhost,
+ int nodelay, int keepalive);
+ void (*free) (void *handle);
+ /* back->reconfig() passes in a replacement configuration. */
+ void (*reconfig) (void *handle, Conf *conf);
/* back->send() returns the current amount of buffered data. */
- int (*send) (char *buf, int len);
+ int (*send) (void *handle, char *buf, int len);
/* back->sendbuffer() does the same thing but without attempting a send */
- int (*sendbuffer) (void);
- void (*size) (void);
- void (*special) (Telnet_Special code);
- Socket(*socket) (void);
- int (*exitcode) (void);
- int (*sendok) (void);
- int (*ldisc) (int);
+ int (*sendbuffer) (void *handle);
+ void (*size) (void *handle, int width, int height);
+ void (*special) (void *handle, Telnet_Special code);
+ const struct telnet_special *(*get_specials) (void *handle);
+ int (*connected) (void *handle);
+ int (*exitcode) (void *handle);
+ /* If back->sendok() returns FALSE, data sent to it from the frontend
+ * may be lost. */
+ int (*sendok) (void *handle);
+ int (*ldisc) (void *handle, int);
+ void (*provide_ldisc) (void *handle, void *ldisc);
+ void (*provide_logctx) (void *handle, void *logctx);
/*
* back->unthrottle() tells the back end that the front end
* buffer is clearing.
*/
- void (*unthrottle) (int);
+ void (*unthrottle) (void *handle, int);
+ int (*cfg_info) (void *handle);
+ char *name;
+ int protocol;
int default_port;
};
-GLOBAL Backend *back;
+extern Backend *backends[];
-extern struct backend_list {
- int protocol;
- char *name;
- Backend *backend;
-} backends[];
-
-struct config_tag {
- /* Basic options */
- char host[512];
- int port;
- enum { PROT_RAW, PROT_TELNET, PROT_RLOGIN, PROT_SSH } protocol;
- int close_on_exit;
- int warn_on_close;
- int ping_interval; /* in seconds */
- int tcp_nodelay;
- /* Proxy options */
- char proxy_exclude_list[512];
- enum { PROXY_NONE, PROXY_HTTP, PROXY_SOCKS, PROXY_TELNET } proxy_type;
- char proxy_host[512];
- int proxy_port;
- char proxy_username[32];
- char proxy_password[32];
- char proxy_telnet_command[512];
- int proxy_socks_version;
- /* SSH options */
- char remote_cmd[512];
- char remote_cmd2[512]; /* fallback if the first fails
- * (used internally for scp) */
- char *remote_cmd_ptr; /* might point to a larger command
- * but never for loading/saving */
- char *remote_cmd_ptr2; /* might point to a larger command
- * but never for loading/saving */
- int nopty;
- int compression;
- int agentfwd;
- int change_username; /* allow username switching in SSH2 */
- int ssh_cipherlist[CIPHER_MAX];
- char keyfile[FILENAME_MAX];
- int sshprot; /* use v1 or v2 when both available */
- int ssh2_des_cbc; /* "des-cbc" nonstandard SSH2 cipher */
- int try_tis_auth;
- int try_ki_auth;
- int ssh_subsys; /* run a subsystem rather than a command */
- int ssh_subsys2; /* fallback to go with remote_cmd2 */
- /* Telnet options */
- char termtype[32];
- char termspeed[32];
- char environmt[1024]; /* VAR\tvalue\0VAR\tvalue\0\0 */
- char username[100];
- char localusername[100];
- int rfc_environ;
- int passive_telnet;
- /* Keyboard options */
- int bksp_is_delete;
- int rxvt_homeend;
- int funky_type;
- int no_applic_c; /* totally disable app cursor keys */
- int no_applic_k; /* totally disable app keypad */
- int no_mouse_rep; /* totally disable mouse reporting */
- int no_remote_resize; /* disable remote resizing */
- int no_alt_screen; /* disable alternate screen */
- int no_remote_wintitle; /* disable remote retitling */
- int no_dbackspace; /* disable destructive backspace */
- int no_remote_charset; /* disable remote charset config */
- int app_cursor;
- int app_keypad;
- int nethack_keypad;
- int telnet_keyboard;
- int telnet_newline;
- int alt_f4; /* is it special? */
- int alt_space; /* is it special? */
- int alt_only; /* is it special? */
- int localecho;
- int localedit;
- int alwaysontop;
- int fullscreenonaltenter;
- int scroll_on_key;
- int scroll_on_disp;
- int compose_key;
- int ctrlaltkeys;
- char wintitle[256]; /* initial window title */
- /* Terminal options */
- int savelines;
- int dec_om;
- int wrap_mode;
- int lfhascr;
- int cursor_type; /* 0=block 1=underline 2=vertical */
- int blink_cur;
- enum {
- BELL_DISABLED, BELL_DEFAULT, BELL_VISUAL, BELL_WAVEFILE
- } beep;
- enum {
- B_IND_DISABLED, B_IND_FLASH, B_IND_STEADY
- } beep_ind;
- int bellovl; /* bell overload protection active? */
- int bellovl_n; /* number of bells to cause overload */
- int bellovl_t; /* time interval for overload (seconds) */
- int bellovl_s; /* period of silence to re-enable bell (s) */
- char bell_wavefile[FILENAME_MAX];
- int scrollbar;
- int scrollbar_in_fullscreen;
- enum { RESIZE_TERM, RESIZE_DISABLED, RESIZE_FONT, RESIZE_EITHER } resize_action;
- int bce;
- int blinktext;
- int win_name_always;
- int width, height;
- char font[64];
- int fontisbold;
- int fontheight;
- int fontcharset;
- char logfilename[FILENAME_MAX];
- int logtype;
- int logxfovr;
- int hide_mouseptr;
- int sunken_edge;
- int window_border;
- char answerback[256];
- char printer[128];
- /* Colour options */
- int try_palette;
- int bold_colour;
- unsigned char colours[22][3];
- /* Selection options */
- int mouse_is_xterm;
- int rect_select;
- int rawcnp;
- int rtf_paste;
- int mouse_override;
- short wordness[256];
- /* translations */
- VT_Mode vtmode;
- char line_codepage[128];
- int xlat_capslockcyr;
- /* X11 forwarding */
- int x11_forward;
- char x11_display[128];
- /* port forwarding */
- int lport_acceptall; /* accept conns from hosts other than localhost */
- int rport_acceptall; /* same for remote forwarded ports (SSH2 only) */
- char portfwd[1024]; /* [LR]localport\thost:port\000[LR]localport\thost:port\000\000 */
- /* SSH bug compatibility modes */
- enum {
- BUG_AUTO, BUG_OFF, BUG_ON
- } sshbug_ignore1, sshbug_plainpw1, sshbug_rsa1,
- sshbug_hmac2, sshbug_derivekey2, sshbug_rsapad2,
- sshbug_dhgex2;
-};
+/*
+ * Suggested default protocol provided by the backend link module.
+ * The application is free to ignore this.
+ */
+extern const int be_default_protocol;
/*
- * You can compile with -DSSH_DEFAULT to have ssh by default.
+ * Name of this particular application, for use in the config box
+ * and other pieces of text.
*/
-#ifndef SSH_DEFAULT
-#define DEFAULT_PROTOCOL PROT_TELNET
-#define DEFAULT_PORT 23
-#else
-#define DEFAULT_PROTOCOL PROT_SSH
-#define DEFAULT_PORT 22
-#endif
+extern const char *const appname;
/*
* Some global flags denoting the type of application.
* being run, _either_ because no remote command has been provided
* _or_ because the application is GUI and can't run non-
* interactively.
+ *
+ * These flags describe the type of _application_ - they wouldn't
+ * vary between individual sessions - and so it's OK to have this
+ * variable be GLOBAL.
+ *
+ * Note that additional flags may be defined in platform-specific
+ * headers. It's probably best if those ones start from 0x1000, to
+ * avoid collision.
*/
#define FLAG_VERBOSE 0x0001
#define FLAG_STDERR 0x0002
#define FLAG_INTERACTIVE 0x0004
GLOBAL int flags;
-GLOBAL Config cfg;
+/*
+ * Likewise, these two variables are set up when the application
+ * initialises, and inform all default-settings accesses after
+ * that.
+ */
GLOBAL int default_protocol;
GLOBAL int default_port;
+/*
+ * This is set TRUE by cmdline.c iff a session is loaded with "-load".
+ */
+GLOBAL int loaded_session;
+/*
+ * This is set to the name of the loaded session.
+ */
+GLOBAL char *cmdline_session_name;
+
struct RSAKey; /* be a little careful of scope */
/*
- * Exports from window.c.
+ * Mechanism for getting text strings such as usernames and passwords
+ * from the front-end.
+ * The fields are mostly modelled after SSH's keyboard-interactive auth.
+ * FIXME We should probably mandate a character set/encoding (probably UTF-8).
+ *
+ * Since many of the pieces of text involved may be chosen by the server,
+ * the caller must take care to ensure that the server can't spoof locally-
+ * generated prompts such as key passphrase prompts. Some ground rules:
+ * - If the front-end needs to truncate a string, it should lop off the
+ * end.
+ * - The front-end should filter out any dangerous characters and
+ * generally not trust the strings. (But \n is required to behave
+ * vaguely sensibly, at least in `instruction', and ideally in
+ * `prompt[]' too.)
+ */
+typedef struct {
+ char *prompt;
+ int echo;
+ /*
+ * 'result' must be a dynamically allocated array of exactly
+ * 'resultsize' chars. The code for actually reading input may
+ * realloc it bigger (and adjust resultsize accordingly) if it has
+ * to. The caller should free it again when finished with it.
+ *
+ * If resultsize==0, then result may be NULL. When setting up a
+ * prompt_t, it's therefore easiest to initialise them this way,
+ * which means all actual allocation is done by the callee. This
+ * is what add_prompt does.
+ */
+ char *result;
+ size_t resultsize;
+} prompt_t;
+typedef struct {
+ /*
+ * Indicates whether the information entered is to be used locally
+ * (for instance a key passphrase prompt), or is destined for the wire.
+ * This is a hint only; the front-end is at liberty not to use this
+ * information (so the caller should ensure that the supplied text is
+ * sufficient).
+ */
+ int to_server;
+ char *name; /* Short description, perhaps for dialog box title */
+ int name_reqd; /* Display of `name' required or optional? */
+ char *instruction; /* Long description, maybe with embedded newlines */
+ int instr_reqd; /* Display of `instruction' required or optional? */
+ size_t n_prompts; /* May be zero (in which case display the foregoing,
+ * if any, and return success) */
+ prompt_t **prompts;
+ void *frontend;
+ void *data; /* slot for housekeeping data, managed by
+ * get_userpass_input(); initially NULL */
+} prompts_t;
+prompts_t *new_prompts(void *frontend);
+void add_prompt(prompts_t *p, char *promptstr, int echo);
+void prompt_set_result(prompt_t *pr, const char *newstr);
+void prompt_ensure_result_size(prompt_t *pr, int len);
+/* Burn the evidence. (Assumes _all_ strings want free()ing.) */
+void free_prompts(prompts_t *p);
+
+/*
+ * Exports from the front end.
*/
-void request_resize(int, int);
-void do_text(Context, int, int, char *, int, unsigned long, int);
-void do_cursor(Context, int, int, char *, int, unsigned long, int);
-int CharWidth(Context ctx, int uc);
-void set_title(char *);
-void set_icon(char *);
-void set_sbar(int, int, int);
-Context get_ctx(void);
+void request_resize(void *frontend, int, int);
+void do_text(Context, int, int, wchar_t *, int, unsigned long, int);
+void do_cursor(Context, int, int, wchar_t *, int, unsigned long, int);
+int char_width(Context ctx, int uc);
+#ifdef OPTIMISE_SCROLL
+void do_scroll(Context, int, int, int);
+#endif
+void set_title(void *frontend, char *);
+void set_icon(void *frontend, char *);
+void set_sbar(void *frontend, int, int, int);
+Context get_ctx(void *frontend);
void free_ctx(Context);
-void palette_set(int, int, int, int);
-void palette_reset(void);
-void write_aclip(char *, int, int);
-void write_clip(wchar_t *, int, int);
-void get_clip(wchar_t **, int *);
-void optimised_move(int, int, int);
-void set_raw_mouse_mode(int);
-Mouse_Button translate_button(Mouse_Button b);
-void connection_fatal(char *, ...);
+void palette_set(void *frontend, int, int, int, int);
+void palette_reset(void *frontend);
+void write_aclip(void *frontend, char *, int, int);
+void write_clip(void *frontend, wchar_t *, int *, int, int);
+void get_clip(void *frontend, wchar_t **, int *);
+void optimised_move(void *frontend, int, int, int);
+void set_raw_mouse_mode(void *frontend, int);
+void connection_fatal(void *frontend, char *, ...);
+void nonfatal(char *, ...);
void fatalbox(char *, ...);
void modalfatalbox(char *, ...);
-void beep(int);
-void begin_session(void);
-void sys_cursor(int x, int y);
-void request_paste(void);
+#ifdef macintosh
+#pragma noreturn(fatalbox)
+#pragma noreturn(modalfatalbox)
+#endif
+void do_beep(void *frontend, int);
+void begin_session(void *frontend);
+void sys_cursor(void *frontend, int x, int y);
+void request_paste(void *frontend);
+void frontend_keypress(void *frontend);
+void ldisc_update(void *frontend, int echo, int edit);
+/* It's the backend's responsibility to invoke this at the start of a
+ * connection, if necessary; it can also invoke it later if the set of
+ * special commands changes. It does not need to invoke it at session
+ * shutdown. */
+void update_specials_menu(void *frontend);
+int from_backend(void *frontend, int is_stderr, const char *data, int len);
+int from_backend_untrusted(void *frontend, const char *data, int len);
+/* Called when the back end wants to indicate that EOF has arrived on
+ * the server-to-client stream. Returns FALSE to indicate that we
+ * intend to keep the session open in the other direction, or TRUE to
+ * indicate that if they're closing so are we. */
+int from_backend_eof(void *frontend);
+void notify_remote_exit(void *frontend);
+/* Get a sensible value for a tty mode. NULL return = don't set.
+ * Otherwise, returned value should be freed by caller. */
+char *get_ttymode(void *frontend, const char *mode);
+/*
+ * >0 = `got all results, carry on'
+ * 0 = `user cancelled' (FIXME distinguish "give up entirely" and "next auth"?)
+ * <0 = `please call back later with more in/inlen'
+ */
+int get_userpass_input(prompts_t *p, unsigned char *in, int inlen);
#define OPTIMISE_IS_SCROLL 1
-void set_iconic(int iconic);
-void move_window(int x, int y);
-void set_zorder(int top);
-void refresh_window(void);
-void set_zoomed(int zoomed);
-int is_iconic(void);
-void get_window_pos(int *x, int *y);
-void get_window_pixels(int *x, int *y);
-char *get_window_title(int icon);
+void set_iconic(void *frontend, int iconic);
+void move_window(void *frontend, int x, int y);
+void set_zorder(void *frontend, int top);
+void refresh_window(void *frontend);
+void set_zoomed(void *frontend, int zoomed);
+int is_iconic(void *frontend);
+void get_window_pos(void *frontend, int *x, int *y);
+void get_window_pixels(void *frontend, int *x, int *y);
+char *get_window_title(void *frontend, int icon);
+/* Hint from backend to frontend about time-consuming operations.
+ * Initial state is assumed to be BUSY_NOT. */
+enum {
+ BUSY_NOT, /* Not busy, all user interaction OK */
+ BUSY_WAITING, /* Waiting for something; local event loops still running
+ so some local interaction (e.g. menus) OK, but network
+ stuff is suspended */
+ BUSY_CPU /* Locally busy (e.g. crypto); user interaction suspended */
+};
+void set_busy_status(void *frontend, int status);
void cleanup_exit(int);
/*
+ * Exports from conf.c, and a big enum (via parametric macro) of
+ * configuration option keys.
+ */
+#define CONFIG_OPTIONS(X) \
+ /* X(value-type, subkey-type, keyword) */ \
+ X(STR, NONE, host) \
+ X(INT, NONE, port) \
+ X(INT, NONE, protocol) \
+ X(INT, NONE, addressfamily) \
+ X(INT, NONE, close_on_exit) \
+ X(INT, NONE, warn_on_close) \
+ X(INT, NONE, ping_interval) /* in seconds */ \
+ X(INT, NONE, tcp_nodelay) \
+ X(INT, NONE, tcp_keepalives) \
+ X(STR, NONE, loghost) /* logical host being contacted, for host key check */ \
+ /* Proxy options */ \
+ X(STR, NONE, proxy_exclude_list) \
+ X(INT, NONE, proxy_dns) \
+ X(INT, NONE, even_proxy_localhost) \
+ X(INT, NONE, proxy_type) \
+ X(STR, NONE, proxy_host) \
+ X(INT, NONE, proxy_port) \
+ X(STR, NONE, proxy_username) \
+ X(STR, NONE, proxy_password) \
+ X(STR, NONE, proxy_telnet_command) \
+ /* SSH options */ \
+ X(STR, NONE, remote_cmd) \
+ X(STR, NONE, remote_cmd2) /* fallback if remote_cmd fails; never loaded or saved */ \
+ X(INT, NONE, nopty) \
+ X(INT, NONE, compression) \
+ X(INT, INT, ssh_kexlist) \
+ X(INT, NONE, ssh_rekey_time) /* in minutes */ \
+ X(STR, NONE, ssh_rekey_data) /* string encoding e.g. "100K", "2M", "1G" */ \
+ X(INT, NONE, tryagent) \
+ X(INT, NONE, agentfwd) \
+ X(INT, NONE, change_username) /* allow username switching in SSH-2 */ \
+ X(INT, INT, ssh_cipherlist) \
+ X(FILENAME, NONE, keyfile) \
+ X(INT, NONE, sshprot) /* use v1 or v2 when both available */ \
+ X(INT, NONE, ssh2_des_cbc) /* "des-cbc" unrecommended SSH-2 cipher */ \
+ X(INT, NONE, ssh_no_userauth) /* bypass "ssh-userauth" (SSH-2 only) */ \
+ X(INT, NONE, ssh_show_banner) /* show USERAUTH_BANNERs (SSH-2 only) */ \
+ X(INT, NONE, try_tis_auth) \
+ X(INT, NONE, try_ki_auth) \
+ X(INT, NONE, try_gssapi_auth) /* attempt gssapi auth */ \
+ X(INT, NONE, gssapifwd) /* forward tgt via gss */ \
+ X(INT, INT, ssh_gsslist) /* preference order for local GSS libs */ \
+ X(FILENAME, NONE, ssh_gss_custom) \
+ X(INT, NONE, ssh_subsys) /* run a subsystem rather than a command */ \
+ X(INT, NONE, ssh_subsys2) /* fallback to go with remote_cmd_ptr2 */ \
+ X(INT, NONE, ssh_no_shell) /* avoid running a shell */ \
+ X(STR, NONE, ssh_nc_host) /* host to connect to in `nc' mode */ \
+ X(INT, NONE, ssh_nc_port) /* port to connect to in `nc' mode */ \
+ /* Telnet options */ \
+ X(STR, NONE, termtype) \
+ X(STR, NONE, termspeed) \
+ X(STR, STR, ttymodes) /* values are "Vvalue" or "A" */ \
+ X(STR, STR, environmt) \
+ X(STR, NONE, username) \
+ X(INT, NONE, username_from_env) \
+ X(STR, NONE, localusername) \
+ X(INT, NONE, rfc_environ) \
+ X(INT, NONE, passive_telnet) \
+ /* Serial port options */ \
+ X(STR, NONE, serline) \
+ X(INT, NONE, serspeed) \
+ X(INT, NONE, serdatabits) \
+ X(INT, NONE, serstopbits) \
+ X(INT, NONE, serparity) \
+ X(INT, NONE, serflow) \
+ /* Keyboard options */ \
+ X(INT, NONE, bksp_is_delete) \
+ X(INT, NONE, rxvt_homeend) \
+ X(INT, NONE, funky_type) \
+ X(INT, NONE, no_applic_c) /* totally disable app cursor keys */ \
+ X(INT, NONE, no_applic_k) /* totally disable app keypad */ \
+ X(INT, NONE, no_mouse_rep) /* totally disable mouse reporting */ \
+ X(INT, NONE, no_remote_resize) /* disable remote resizing */ \
+ X(INT, NONE, no_alt_screen) /* disable alternate screen */ \
+ X(INT, NONE, no_remote_wintitle) /* disable remote retitling */ \
+ X(INT, NONE, no_dbackspace) /* disable destructive backspace */ \
+ X(INT, NONE, no_remote_charset) /* disable remote charset config */ \
+ X(INT, NONE, remote_qtitle_action) /* remote win title query action */ \
+ X(INT, NONE, app_cursor) \
+ X(INT, NONE, app_keypad) \
+ X(INT, NONE, nethack_keypad) \
+ X(INT, NONE, telnet_keyboard) \
+ X(INT, NONE, telnet_newline) \
+ X(INT, NONE, alt_f4) /* is it special? */ \
+ X(INT, NONE, alt_space) /* is it special? */ \
+ X(INT, NONE, alt_only) /* is it special? */ \
+ X(INT, NONE, localecho) \
+ X(INT, NONE, localedit) \
+ X(INT, NONE, alwaysontop) \
+ X(INT, NONE, fullscreenonaltenter) \
+ X(INT, NONE, scroll_on_key) \
+ X(INT, NONE, scroll_on_disp) \
+ X(INT, NONE, erase_to_scrollback) \
+ X(INT, NONE, compose_key) \
+ X(INT, NONE, ctrlaltkeys) \
+ X(STR, NONE, wintitle) /* initial window title */ \
+ /* Terminal options */ \
+ X(INT, NONE, savelines) \
+ X(INT, NONE, dec_om) \
+ X(INT, NONE, wrap_mode) \
+ X(INT, NONE, lfhascr) \
+ X(INT, NONE, cursor_type) /* 0=block 1=underline 2=vertical */ \
+ X(INT, NONE, blink_cur) \
+ X(INT, NONE, beep) \
+ X(INT, NONE, beep_ind) \
+ X(INT, NONE, bellovl) /* bell overload protection active? */ \
+ X(INT, NONE, bellovl_n) /* number of bells to cause overload */ \
+ X(INT, NONE, bellovl_t) /* time interval for overload (seconds) */ \
+ X(INT, NONE, bellovl_s) /* period of silence to re-enable bell (s) */ \
+ X(FILENAME, NONE, bell_wavefile) \
+ X(INT, NONE, scrollbar) \
+ X(INT, NONE, scrollbar_in_fullscreen) \
+ X(INT, NONE, resize_action) \
+ X(INT, NONE, bce) \
+ X(INT, NONE, blinktext) \
+ X(INT, NONE, win_name_always) \
+ X(INT, NONE, width) \
+ X(INT, NONE, height) \
+ X(FONT, NONE, font) \
+ X(INT, NONE, font_quality) \
+ X(FILENAME, NONE, logfilename) \
+ X(INT, NONE, logtype) \
+ X(INT, NONE, logxfovr) \
+ X(INT, NONE, logflush) \
+ X(INT, NONE, logomitpass) \
+ X(INT, NONE, logomitdata) \
+ X(INT, NONE, hide_mouseptr) \
+ X(INT, NONE, sunken_edge) \
+ X(INT, NONE, window_border) \
+ X(STR, NONE, answerback) \
+ X(STR, NONE, printer) \
+ X(INT, NONE, arabicshaping) \
+ X(INT, NONE, bidi) \
+ /* Colour options */ \
+ X(INT, NONE, ansi_colour) \
+ X(INT, NONE, xterm_256_colour) \
+ X(INT, NONE, system_colour) \
+ X(INT, NONE, try_palette) \
+ X(INT, NONE, bold_style) \
+ X(INT, INT, colours) \
+ /* Selection options */ \
+ X(INT, NONE, mouse_is_xterm) \
+ X(INT, NONE, rect_select) \
+ X(INT, NONE, rawcnp) \
+ X(INT, NONE, rtf_paste) \
+ X(INT, NONE, mouse_override) \
+ X(INT, INT, wordness) \
+ /* translations */ \
+ X(INT, NONE, vtmode) \
+ X(STR, NONE, line_codepage) \
+ X(INT, NONE, cjk_ambig_wide) \
+ X(INT, NONE, utf8_override) \
+ X(INT, NONE, xlat_capslockcyr) \
+ /* X11 forwarding */ \
+ X(INT, NONE, x11_forward) \
+ X(STR, NONE, x11_display) \
+ X(INT, NONE, x11_auth) \
+ X(FILENAME, NONE, xauthfile) \
+ /* port forwarding */ \
+ X(INT, NONE, lport_acceptall) /* accept conns from hosts other than localhost */ \
+ X(INT, NONE, rport_acceptall) /* same for remote forwarded ports (SSH-2 only) */ \
+ /* \
+ * Subkeys for 'portfwd' can have the following forms: \
+ * \
+ * [LR]localport \
+ * [LR]localaddr:localport \
+ * \
+ * Dynamic forwardings are indicated by an 'L' key, and the \
+ * special value "D". For all other forwardings, the value \
+ * should be of the form 'host:port'. \
+ */ \
+ X(STR, STR, portfwd) \
+ /* SSH bug compatibility modes */ \
+ X(INT, NONE, sshbug_ignore1) \
+ X(INT, NONE, sshbug_plainpw1) \
+ X(INT, NONE, sshbug_rsa1) \
+ X(INT, NONE, sshbug_hmac2) \
+ X(INT, NONE, sshbug_derivekey2) \
+ X(INT, NONE, sshbug_rsapad2) \
+ X(INT, NONE, sshbug_pksessid2) \
+ X(INT, NONE, sshbug_rekey2) \
+ X(INT, NONE, sshbug_maxpkt2) \
+ X(INT, NONE, sshbug_ignore2) \
+ X(INT, NONE, sshbug_winadj) \
+ /* \
+ * ssh_simple means that we promise never to open any channel \
+ * other than the main one, which means it can safely use a very \
+ * large window in SSH-2. \
+ */ \
+ X(INT, NONE, ssh_simple) \
+ /* Options for pterm. Should split out into platform-dependent part. */ \
+ X(INT, NONE, stamp_utmp) \
+ X(INT, NONE, login_shell) \
+ X(INT, NONE, scrollbar_on_left) \
+ X(INT, NONE, shadowbold) \
+ X(FONT, NONE, boldfont) \
+ X(FONT, NONE, widefont) \
+ X(FONT, NONE, wideboldfont) \
+ X(INT, NONE, shadowboldoffset) \
+ X(INT, NONE, crhaslf) \
+ X(STR, NONE, winclass) \
+
+/* Now define the actual enum of option keywords using that macro. */
+#define CONF_ENUM_DEF(valtype, keytype, keyword) CONF_ ## keyword,
+enum config_primary_key { CONFIG_OPTIONS(CONF_ENUM_DEF) N_CONFIG_OPTIONS };
+#undef CONF_ENUM_DEF
+
+#define NCFGCOLOURS 22 /* number of colours in CONF_colours above */
+
+/* Functions handling configuration structures. */
+Conf *conf_new(void); /* create an empty configuration */
+void conf_free(Conf *conf);
+Conf *conf_copy(Conf *oldconf);
+void conf_copy_into(Conf *dest, Conf *src);
+/* Mandatory accessor functions: enforce by assertion that keys exist. */
+int conf_get_int(Conf *conf, int key);
+int conf_get_int_int(Conf *conf, int key, int subkey);
+char *conf_get_str(Conf *conf, int key); /* result still owned by conf */
+char *conf_get_str_str(Conf *conf, int key, const char *subkey);
+Filename *conf_get_filename(Conf *conf, int key);
+FontSpec *conf_get_fontspec(Conf *conf, int key); /* still owned by conf */
+/* Optional accessor function: return NULL if key does not exist. */
+char *conf_get_str_str_opt(Conf *conf, int key, const char *subkey);
+/* Accessor function to step through a string-subkeyed list.
+ * Returns the next subkey after the provided one, or the first if NULL.
+ * Returns NULL if there are none left.
+ * Both the return value and *subkeyout are still owned by conf. */
+char *conf_get_str_strs(Conf *conf, int key, char *subkeyin, char **subkeyout);
+/* Return the nth string subkey in a list. Owned by conf. NULL if beyond end */
+char *conf_get_str_nthstrkey(Conf *conf, int key, int n);
+/* Functions to set entries in configuration. Always copy their inputs. */
+void conf_set_int(Conf *conf, int key, int value);
+void conf_set_int_int(Conf *conf, int key, int subkey, int value);
+void conf_set_str(Conf *conf, int key, const char *value);
+void conf_set_str_str(Conf *conf, int key,
+ const char *subkey, const char *val);
+void conf_del_str_str(Conf *conf, int key, const char *subkey);
+void conf_set_filename(Conf *conf, int key, const Filename *val);
+void conf_set_fontspec(Conf *conf, int key, const FontSpec *val);
+/* Serialisation functions for Duplicate Session */
+int conf_serialised_size(Conf *conf);
+void conf_serialise(Conf *conf, void *data);
+int conf_deserialise(Conf *conf, void *data, int maxsize);/*returns size used*/
+
+/*
+ * Functions to copy, free, serialise and deserialise FontSpecs.
+ * Provided per-platform, to go with the platform's idea of a
+ * FontSpec's contents.
+ *
+ * fontspec_serialise returns the number of bytes written, and can
+ * handle data==NULL without crashing. So you can call it once to find
+ * out a size, then again once you've allocated a buffer.
+ */
+FontSpec *fontspec_copy(const FontSpec *f);
+void fontspec_free(FontSpec *f);
+int fontspec_serialise(FontSpec *f, void *data);
+FontSpec *fontspec_deserialise(void *data, int maxsize, int *used);
+
+/*
* Exports from noise.c.
*/
void noise_get_heavy(void (*func) (void *, int));
/*
* Exports from settings.c.
*/
-void save_settings(char *section, int do_host, Config * cfg);
-void load_settings(char *section, int do_host, Config * cfg);
-void get_sesslist(int allocate);
-void do_defaults(char *, Config *);
+Backend *backend_from_name(const char *name);
+Backend *backend_from_proto(int proto);
+char *get_remote_username(Conf *conf); /* dynamically allocated */
+char *save_settings(char *section, Conf *conf);
+void save_open_settings(void *sesskey, Conf *conf);
+void load_settings(char *section, Conf *conf);
+void load_open_settings(void *sesskey, Conf *conf);
+void get_sesslist(struct sesslist *, int allocate);
+void do_defaults(char *, Conf *);
void registry_cleanup(void);
/*
+ * Functions used by settings.c to provide platform-specific
+ * default settings.
+ *
+ * (The integer one is expected to return `def' if it has no clear
+ * opinion of its own. This is because there's no integer value
+ * which I can reliably set aside to indicate `nil'. The string
+ * function is perfectly all right returning NULL, of course. The
+ * Filename and FontSpec functions are _not allowed_ to fail to
+ * return, since these defaults _must_ be per-platform.)
+ *
+ * The 'Filename *' returned by platform_default_filename, and the
+ * 'FontSpec *' returned by platform_default_fontspec, have ownership
+ * transferred to the caller, and must be freed.
+ */
+char *platform_default_s(const char *name);
+int platform_default_i(const char *name, int def);
+Filename *platform_default_filename(const char *name);
+FontSpec *platform_default_fontspec(const char *name);
+
+/*
* Exports from terminal.c.
*/
-void term_init(void);
-void term_size(int, int, int);
-void term_out(void);
-void term_paint(Context, int, int, int, int);
-void term_scroll(int, int);
-void term_pwron(void);
-void term_clrsb(void);
-void term_mouse(Mouse_Button, Mouse_Action, int, int, int, int, int);
-void term_deselect(void);
-void term_update(void);
-void term_invalidate(void);
-void term_blink(int set_cursor);
-void term_do_paste(void);
-void term_paste(void);
-void term_nopaste(void);
-int term_ldisc(int option);
-int from_backend(int is_stderr, char *data, int len);
-void logfopen(void);
-void logfclose(void);
-void term_copyall(void);
-void term_reconfig(void);
+Terminal *term_init(Conf *, struct unicode_data *, void *);
+void term_free(Terminal *);
+void term_size(Terminal *, int, int, int);
+void term_paint(Terminal *, Context, int, int, int, int, int);
+void term_scroll(Terminal *, int, int);
+void term_scroll_to_selection(Terminal *, int);
+void term_pwron(Terminal *, int);
+void term_clrsb(Terminal *);
+void term_mouse(Terminal *, Mouse_Button, Mouse_Button, Mouse_Action,
+ int,int,int,int,int);
+void term_key(Terminal *, Key_Sym, wchar_t *, size_t, unsigned int,
+ unsigned int);
+void term_deselect(Terminal *);
+void term_update(Terminal *);
+void term_invalidate(Terminal *);
+void term_blink(Terminal *, int set_cursor);
+void term_do_paste(Terminal *);
+int term_paste_pending(Terminal *);
+void term_paste(Terminal *);
+void term_nopaste(Terminal *);
+int term_ldisc(Terminal *, int option);
+void term_copyall(Terminal *);
+void term_reconfig(Terminal *, Conf *);
+void term_seen_key_event(Terminal *);
+int term_data(Terminal *, int is_stderr, const char *data, int len);
+int term_data_untrusted(Terminal *, const char *data, int len);
+void term_provide_resize_fn(Terminal *term,
+ void (*resize_fn)(void *, int, int),
+ void *resize_ctx);
+void term_provide_logctx(Terminal *term, void *logctx);
+void term_set_focus(Terminal *term, int has_focus);
+char *term_get_ttymode(Terminal *term, const char *mode);
+int term_get_userpass_input(Terminal *term, prompts_t *p,
+ unsigned char *in, int inlen);
+
+int format_arrow_key(char *buf, Terminal *term, int xkey, int ctrl);
/*
* Exports from logging.c.
*/
-void logtraffic(unsigned char c, int logmode);
+void *log_init(void *frontend, Conf *conf);
+void log_free(void *logctx);
+void log_reconfig(void *logctx, Conf *conf);
+void logfopen(void *logctx);
+void logfclose(void *logctx);
+void logtraffic(void *logctx, unsigned char c, int logmode);
+void logflush(void *logctx);
+void log_eventlog(void *logctx, const char *string);
enum { PKT_INCOMING, PKT_OUTGOING };
-void log_eventlog(char *string);
-void log_packet(int direction, int type, char *texttype, void *data, int len);
+enum { PKTLOG_EMIT, PKTLOG_BLANK, PKTLOG_OMIT };
+struct logblank_t {
+ int offset;
+ int len;
+ int type;
+};
+void log_packet(void *logctx, int direction, int type,
+ char *texttype, const void *data, int len,
+ int n_blanks, const struct logblank_t *blanks,
+ const unsigned long *sequence);
+
+/*
+ * Exports from testback.c
+ */
+
+extern Backend null_backend;
+extern Backend loop_backend;
/*
* Exports from raw.c.
extern Backend telnet_backend;
/*
- * Exports from ssh.c. (NB the getline variables have to be GLOBAL
- * so that PuTTYtel will still compile - otherwise it would depend
- * on ssh.c.)
+ * Exports from ssh.c.
*/
-
-GLOBAL int (*ssh_get_line) (const char *prompt, char *str, int maxlen,
- int is_pw);
-GLOBAL int ssh_getline_pw_only;
extern Backend ssh_backend;
/*
* Exports from ldisc.c.
*/
+void *ldisc_create(Conf *, Terminal *, Backend *, void *, void *);
+void ldisc_configure(void *, Conf *);
+void ldisc_free(void *);
+void ldisc_send(void *handle, char *buf, int len, int interactive);
-extern void ldisc_send(char *buf, int len, int interactive);
+/*
+ * Exports from ldiscucs.c.
+ */
+void lpage_send(void *, int codepage, char *buf, int len, int interactive);
+void luni_send(void *, wchar_t * widebuf, int len, int interactive);
/*
* Exports from sshrand.c.
*/
void random_add_noise(void *noise, int length);
-void random_init(void);
int random_byte(void);
void random_get_savedata(void **data, int *len);
extern int random_active;
+/* The random number subsystem is activated if at least one other entity
+ * within the program expresses an interest in it. So each SSH session
+ * calls random_ref on startup and random_unref on shutdown. */
+void random_ref(void);
+void random_unref(void);
+
+/*
+ * Exports from pinger.c.
+ */
+typedef struct pinger_tag *Pinger;
+Pinger pinger_new(Conf *conf, Backend *back, void *backhandle);
+void pinger_reconfig(Pinger, Conf *oldconf, Conf *newconf);
+void pinger_free(Pinger);
/*
* Exports from misc.c.
*/
#include "misc.h"
+int conf_launchable(Conf *conf);
+char const *conf_dest(Conf *conf);
+
+/*
+ * Exports from sercfg.c.
+ */
+void ser_setup_config_box(struct controlbox *b, int midsession,
+ int parity_mask, int flow_mask);
/*
* Exports from version.c.
#ifndef CP_UTF8
#define CP_UTF8 65001
#endif
-void init_ucs_tables(void);
-void lpage_send(int codepage, char *buf, int len, int interactive);
-void luni_send(wchar_t * widebuf, int len, int interactive);
+/* void init_ucs(void); -- this is now in platform-specific headers */
+int is_dbcs_leadbyte(int codepage, char byte);
+int mb_to_wc(int codepage, int flags, const char *mbstr, int mblen,
+ wchar_t *wcstr, int wclen);
+int wc_to_mb(int codepage, int flags, const wchar_t *wcstr, int wclen,
+ char *mbstr, int mblen, char *defchr, int *defused,
+ struct unicode_data *ucsdata);
wchar_t xlat_uskbd2cyrllic(int ch);
int check_compose(int first, int second);
int decode_codepage(char *cp_name);
-char *cp_enumerate (int index);
-char *cp_name(int codepage);
+const char *cp_enumerate (int index);
+const char *cp_name(int codepage);
void get_unitab(int codepage, wchar_t * unitab, int ftype);
/*
+ * Exports from wcwidth.c
+ */
+int mk_wcwidth(unsigned int ucs);
+int mk_wcswidth(const unsigned int *pwcs, size_t n);
+int mk_wcwidth_cjk(unsigned int ucs);
+int mk_wcswidth_cjk(const unsigned int *pwcs, size_t n);
+
+/*
* Exports from mscrypto.c
*/
#ifdef MSCRYPTOAPI
#endif
/*
- * Exports from pageantc.c
+ * Exports from pageantc.c.
+ *
+ * agent_query returns 1 for here's-a-response, and 0 for query-in-
+ * progress. In the latter case there will be a call to `callback'
+ * at some future point, passing callback_ctx as the first
+ * parameter and the actual reply data as the second and third.
+ *
+ * The response may be a NULL pointer (in either of the synchronous
+ * or asynchronous cases), which indicates failure to receive a
+ * response.
*/
-void agent_query(void *in, int inlen, void **out, int *outlen);
+int agent_query(void *in, int inlen, void **out, int *outlen,
+ void (*callback)(void *, void *, int), void *callback_ctx);
int agent_exists(void);
/*
int wc_unescape(char *output, const char *wildcard);
/*
- * Exports from windlg.c
+ * Exports from frontend (windlg.c etc)
*/
-void logevent(char *);
-void verify_ssh_host_key(char *host, int port, char *keytype,
- char *keystr, char *fingerprint);
-void askcipher(char *ciphername, int cs);
-int askappend(char *filename);
+void logevent(void *frontend, const char *);
+void pgp_fingerprints(void);
+/*
+ * verify_ssh_host_key() can return one of three values:
+ *
+ * - +1 means `key was OK' (either already known or the user just
+ * approved it) `so continue with the connection'
+ *
+ * - 0 means `key was not OK, abandon the connection'
+ *
+ * - -1 means `I've initiated enquiries, please wait to be called
+ * back via the provided function with a result that's either 0
+ * or +1'.
+ */
+int verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
+ char *keystr, char *fingerprint,
+ void (*callback)(void *ctx, int result), void *ctx);
+/*
+ * askalg has the same set of return values as verify_ssh_host_key.
+ */
+int askalg(void *frontend, const char *algtype, const char *algname,
+ void (*callback)(void *ctx, int result), void *ctx);
+/*
+ * askappend can return four values:
+ *
+ * - 2 means overwrite the log file
+ * - 1 means append to the log file
+ * - 0 means cancel logging for this session
+ * - -1 means please wait.
+ */
+int askappend(void *frontend, Filename *filename,
+ void (*callback)(void *ctx, int result), void *ctx);
/*
- * Exports from console.c (that aren't equivalents to things in
- * windlg.c).
+ * Exports from console frontends (wincons.c, uxcons.c)
+ * that aren't equivalents to things in windlg.c et al.
*/
extern int console_batch_mode;
-int console_get_line(const char *prompt, char *str, int maxlen, int is_pw);
+int console_get_userpass_input(prompts_t *p, unsigned char *in, int inlen);
+void console_provide_logctx(void *logctx);
+int is_interactive(void);
/*
* Exports from printing.c.
* defined differently in various places and required _by_
* cmdline.c).
*/
-int cmdline_process_param(char *, char *, int);
-void cmdline_run_saved(void);
-extern char *cmdline_password;
+int cmdline_process_param(char *, char *, int, Conf *);
+void cmdline_run_saved(Conf *);
+void cmdline_cleanup(void);
+int cmdline_get_passwd_input(prompts_t *p, unsigned char *in, int inlen);
#define TOOLTYPE_FILETRANSFER 1
+#define TOOLTYPE_NONNETWORK 2
extern int cmdline_tooltype;
void cmdline_error(char *, ...);
+/*
+ * Exports from config.c.
+ */
+struct controlbox;
+union control;
+void conf_radiobutton_handler(union control *ctrl, void *dlg,
+ void *data, int event);
+#define CHECKBOX_INVERT (1<<30)
+void conf_checkbox_handler(union control *ctrl, void *dlg,
+ void *data, int event);
+void conf_editbox_handler(union control *ctrl, void *dlg,
+ void *data, int event);
+void conf_filesel_handler(union control *ctrl, void *dlg,
+ void *data, int event);
+void conf_fontsel_handler(union control *ctrl, void *dlg,
+ void *data, int event);
+void setup_config_box(struct controlbox *b, int midsession,
+ int protocol, int protcfginfo);
+
+/*
+ * Exports from minibidi.c.
+ */
+typedef struct bidi_char {
+ unsigned int origwc, wc;
+ unsigned short index;
+} bidi_char;
+int do_bidi(bidi_char *line, int count);
+int do_shape(bidi_char *line, bidi_char *to, int count);
+int is_rtl(int c);
+
+/*
+ * X11 auth mechanisms we know about.
+ */
+enum {
+ X11_NO_AUTH,
+ X11_MIT, /* MIT-MAGIC-COOKIE-1 */
+ X11_XDM, /* XDM-AUTHORIZATION-1 */
+ X11_NAUTHS
+};
+extern const char *const x11_authnames[]; /* declared in x11fwd.c */
+
+/*
+ * Miscellaneous exports from the platform-specific code.
+ *
+ * filename_serialise and filename_deserialise have the same semantics
+ * as fontspec_serialise and fontspec_deserialise above.
+ */
+Filename *filename_from_str(const char *string);
+const char *filename_to_str(const Filename *fn);
+int filename_equal(const Filename *f1, const Filename *f2);
+int filename_is_null(const Filename *fn);
+Filename *filename_copy(const Filename *fn);
+void filename_free(Filename *fn);
+int filename_serialise(const Filename *f, void *data);
+Filename *filename_deserialise(void *data, int maxsize, int *used);
+char *get_username(void); /* return value needs freeing */
+char *get_random_data(int bytes); /* used in cmdgen.c */
+
+/*
+ * Exports and imports from timing.c.
+ *
+ * schedule_timer() asks the front end to schedule a callback to a
+ * timer function in a given number of ticks. The returned value is
+ * the time (in ticks since an arbitrary offset) at which the
+ * callback can be expected. This value will also be passed as the
+ * `now' parameter to the callback function. Hence, you can (for
+ * example) schedule an event at a particular time by calling
+ * schedule_timer() and storing the return value in your context
+ * structure as the time when that event is due. The first time a
+ * callback function gives you that value or more as `now', you do
+ * the thing.
+ *
+ * expire_timer_context() drops all current timers associated with
+ * a given value of ctx (for when you're about to free ctx).
+ *
+ * run_timers() is called from the front end when it has reason to
+ * think some timers have reached their moment, or when it simply
+ * needs to know how long to wait next. We pass it the time we
+ * think it is. It returns TRUE and places the time when the next
+ * timer needs to go off in `next', or alternatively it returns
+ * FALSE if there are no timers at all pending.
+ *
+ * timer_change_notify() must be supplied by the front end; it
+ * notifies the front end that a new timer has been added to the
+ * list which is sooner than any existing ones. It provides the
+ * time when that timer needs to go off.
+ *
+ * *** FRONT END IMPLEMENTORS NOTE:
+ *
+ * There's an important subtlety in the front-end implementation of
+ * the timer interface. When a front end is given a `next' value,
+ * either returned from run_timers() or via timer_change_notify(),
+ * it should ensure that it really passes _that value_ as the `now'
+ * parameter to its next run_timers call. It should _not_ simply
+ * call GETTICKCOUNT() to get the `now' parameter when invoking
+ * run_timers().
+ *
+ * The reason for this is that an OS's system clock might not agree
+ * exactly with the timing mechanisms it supplies to wait for a
+ * given interval. I'll illustrate this by the simple example of
+ * Unix Plink, which uses timeouts to select() in a way which for
+ * these purposes can simply be considered to be a wait() function.
+ * Suppose, for the sake of argument, that this wait() function
+ * tends to return early by 1%. Then a possible sequence of actions
+ * is:
+ *
+ * - run_timers() tells the front end that the next timer firing
+ * is 10000ms from now.
+ * - Front end calls wait(10000ms), but according to
+ * GETTICKCOUNT() it has only waited for 9900ms.
+ * - Front end calls run_timers() again, passing time T-100ms as
+ * `now'.
+ * - run_timers() does nothing, and says the next timer firing is
+ * still 100ms from now.
+ * - Front end calls wait(100ms), which only waits for 99ms.
+ * - Front end calls run_timers() yet again, passing time T-1ms.
+ * - run_timers() says there's still 1ms to wait.
+ * - Front end calls wait(1ms).
+ *
+ * If you're _lucky_ at this point, wait(1ms) will actually wait
+ * for 1ms and you'll only have woken the program up three times.
+ * If you're unlucky, wait(1ms) might do nothing at all due to
+ * being below some minimum threshold, and you might find your
+ * program spends the whole of the last millisecond tight-looping
+ * between wait() and run_timers().
+ *
+ * Instead, what you should do is to _save_ the precise `next'
+ * value provided by run_timers() or via timer_change_notify(), and
+ * use that precise value as the input to the next run_timers()
+ * call. So:
+ *
+ * - run_timers() tells the front end that the next timer firing
+ * is at time T, 10000ms from now.
+ * - Front end calls wait(10000ms).
+ * - Front end then immediately calls run_timers() and passes it
+ * time T, without stopping to check GETTICKCOUNT() at all.
+ *
+ * This guarantees that the program wakes up only as many times as
+ * there are actual timer actions to be taken, and that the timing
+ * mechanism will never send it into a tight loop.
+ *
+ * (It does also mean that the timer action in the above example
+ * will occur 100ms early, but this is not generally critical. And
+ * the hypothetical 1% error in wait() will be partially corrected
+ * for anyway when, _after_ run_timers() returns, you call
+ * GETTICKCOUNT() and compare the result with the returned `next'
+ * value to find out how long you have to make your next wait().)
+ */
+typedef void (*timer_fn_t)(void *ctx, unsigned long now);
+unsigned long schedule_timer(int ticks, timer_fn_t fn, void *ctx);
+void expire_timer_context(void *ctx);
+int run_timers(unsigned long now, unsigned long *next);
+void timer_change_notify(unsigned long next);
+
+/*
+ * Define no-op macros for the jump list functions, on platforms that
+ * don't support them. (This is a bit of a hack, and it'd be nicer to
+ * localise even the calls to those functions into the Windows front
+ * end, but it'll do for the moment.)
+ */
+#ifndef JUMPLIST_SUPPORTED
+#define add_session_to_jumplist(x) ((void)0)
+#define remove_session_from_jumplist(x) ((void)0)
+#endif
+
+/* SURROGATE PAIR */
+#ifndef IS_HIGH_SURROGATE
+#define HIGH_SURROGATE_START 0xd800
+#define HIGH_SURROGATE_END 0xdbff
+#define LOW_SURROGATE_START 0xdc00
+#define LOW_SURROGATE_END 0xdfff
+
+#define IS_HIGH_SURROGATE(wch) (((wch) >= HIGH_SURROGATE_START) && \
+ ((wch) <= HIGH_SURROGATE_END))
+#define IS_LOW_SURROGATE(wch) (((wch) >= LOW_SURROGATE_START) && \
+ ((wch) <= LOW_SURROGATE_END))
+#define IS_SURROGATE_PAIR(hs, ls) (IS_HIGH_SURROGATE(hs) && \
+ IS_LOW_SURROGATE(ls))
+#endif
+
+
+#define IS_SURROGATE(wch) (((wch) >= HIGH_SURROGATE_START) && \
+ ((wch) <= LOW_SURROGATE_END))
+#define HIGH_SURROGATE_OF(codept) \
+ (HIGH_SURROGATE_START + (((codept) - 0x10000) >> 10))
+#define LOW_SURROGATE_OF(codept) \
+ (LOW_SURROGATE_START + (((codept) - 0x10000) & 0x3FF))
+#define FROM_SURROGATES(wch1, wch2) \
+ (0x10000 + (((wch1) & 0x3FF) << 10) + ((wch2) & 0x3FF))
+
#endif
projects / u / mdw / putty / blobdiff