diff options
Diffstat (limited to 'payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c')
| -rw-r--r-- | payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c | 511 |
1 files changed, 511 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c new file mode 100644 index 0000000000..652cb0cba7 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c @@ -0,0 +1,511 @@ +/* Public Domain Curses */ + +/* MS C doesn't return flags from int86() */ +#ifdef MSC +# define USE_KBHIT +#endif + +#ifdef USE_KBHIT +# include <conio.h> +#endif + +#include "pdcdos.h" + +RCSID("$Id: pdckbd.c,v 1.87 2008/07/13 16:08:17 wmcbrine Exp $") + +/*man-start************************************************************** + + Name: pdckbd + + Synopsis: + unsigned long PDC_get_input_fd(void); + + Description: + PDC_get_input_fd() returns the file descriptor that PDCurses + reads its input from. It can be used for select(). + + Portability X/Open BSD SYS V + PDC_get_input_fd - - - + +**man-end****************************************************************/ + +#ifdef __DJGPP__ +# include <fcntl.h> +# include <io.h> +# include <signal.h> +#endif + +/************************************************************************ + * Table for key code translation of function keys in keypad mode * + * These values are for strict IBM keyboard compatibles only * + ************************************************************************/ + +static short key_table[] = +{ + -1, ALT_ESC, -1, 0, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, ALT_BKSP, KEY_BTAB, + ALT_Q, ALT_W, ALT_E, ALT_R, + ALT_T, ALT_Y, ALT_U, ALT_I, + ALT_O, ALT_P, ALT_LBRACKET, ALT_RBRACKET, + ALT_ENTER, -1, ALT_A, ALT_S, + ALT_D, ALT_F, ALT_G, ALT_H, + ALT_J, ALT_K, ALT_L, ALT_SEMICOLON, + ALT_FQUOTE, ALT_BQUOTE, -1, ALT_BSLASH, + ALT_Z, ALT_X, ALT_C, ALT_V, + ALT_B, ALT_N, ALT_M, ALT_COMMA, + ALT_STOP, ALT_FSLASH, -1, ALT_PADSTAR, + -1, -1, -1, KEY_F(1), + KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), + KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), + KEY_F(10), -1, -1, KEY_HOME, + KEY_UP, KEY_PPAGE, ALT_PADMINUS, KEY_LEFT, + KEY_B2, KEY_RIGHT, ALT_PADPLUS, KEY_END, + KEY_DOWN, KEY_NPAGE, KEY_IC, KEY_DC, + KEY_F(13), KEY_F(14), KEY_F(15), KEY_F(16), + KEY_F(17), KEY_F(18), KEY_F(19), KEY_F(20), + KEY_F(21), KEY_F(22), KEY_F(25), KEY_F(26), + KEY_F(27), KEY_F(28), KEY_F(29), KEY_F(30), + KEY_F(31), KEY_F(32), KEY_F(33), KEY_F(34), + KEY_F(37), KEY_F(38), KEY_F(39), KEY_F(40), + KEY_F(41), KEY_F(42), KEY_F(43), KEY_F(44), + KEY_F(45), KEY_F(46), -1, CTL_LEFT, + CTL_RIGHT, CTL_END, CTL_PGDN, CTL_HOME, + ALT_1, ALT_2, ALT_3, ALT_4, + ALT_5, ALT_6, ALT_7, ALT_8, + ALT_9, ALT_0, ALT_MINUS, ALT_EQUAL, + CTL_PGUP, KEY_F(11), KEY_F(12), KEY_F(23), + KEY_F(24), KEY_F(35), KEY_F(36), KEY_F(47), + KEY_F(48), CTL_UP, CTL_PADMINUS, CTL_PADCENTER, + CTL_PADPLUS, CTL_DOWN, CTL_INS, CTL_DEL, + CTL_TAB, CTL_PADSLASH, CTL_PADSTAR, ALT_HOME, + ALT_UP, ALT_PGUP, -1, ALT_LEFT, + -1, ALT_RIGHT, -1, ALT_END, + ALT_DOWN, ALT_PGDN, ALT_INS, ALT_DEL, + ALT_PADSLASH, ALT_TAB, ALT_PADENTER, -1 +}; + +unsigned long pdc_key_modifiers = 0L; + +static struct {unsigned short pressed, released;} button[3]; + +static bool mouse_avail = FALSE, mouse_vis = FALSE, mouse_moved = FALSE, + mouse_button = FALSE, key_pressed = FALSE; + +static unsigned char mouse_scroll = 0; +static PDCREGS ms_regs, old_ms; +static unsigned short shift_status, old_shift = 0; +static unsigned char keyboard_function = 0xff, shift_function = 0xff, + check_function = 0xff; + +static const unsigned short button_map[3] = {0, 2, 1}; + +unsigned long PDC_get_input_fd(void) +{ + PDC_LOG(("PDC_get_input_fd() - called\n")); + + return (unsigned long)fileno(stdin); +} + +void PDC_set_keyboard_binary(bool on) +{ + PDC_LOG(("PDC_set_keyboard_binary() - called\n")); + +#ifdef __DJGPP__ + setmode(fileno(stdin), on ? O_BINARY : O_TEXT); + signal(SIGINT, on ? SIG_IGN : SIG_DFL); +#endif +} + +/* check if a key or mouse event is waiting */ + +bool PDC_check_key(void) +{ + PDCREGS regs; + + if (shift_function == 0xff) + { + int scan; + + /* get shift status for all keyboards */ + + regs.h.ah = 0x02; + PDCINT(0x16, regs); + scan = regs.h.al; + + /* get shift status for enhanced keyboards */ + + regs.h.ah = 0x12; + PDCINT(0x16, regs); + + if (scan == regs.h.al && getdosmembyte(0x496) == 0x10) + { + keyboard_function = 0x10; + check_function = 0x11; + shift_function = 0x12; + } + else + { + keyboard_function = 0; + check_function = 1; + shift_function = 2; + } + } + + regs.h.ah = shift_function; + PDCINT(0x16, regs); + + shift_status = regs.W.ax; + + if (mouse_vis) + { + unsigned short i; + + ms_regs.W.ax = 3; + PDCINT(0x33, ms_regs); + + mouse_button = FALSE; + + for (i = 0; i < 3; i++) + { + regs.W.ax = 6; + regs.W.bx = button_map[i]; + PDCINT(0x33, regs); + button[i].released = regs.W.bx; + if (regs.W.bx) + { + ms_regs.W.cx = regs.W.cx; + ms_regs.W.dx = regs.W.dx; + mouse_button = TRUE; + } + + regs.W.ax = 5; + regs.W.bx = button_map[i]; + PDCINT(0x33, regs); + button[i].pressed = regs.W.bx; + if (regs.W.bx) + { + ms_regs.W.cx = regs.W.cx; + ms_regs.W.dx = regs.W.dx; + mouse_button = TRUE; + } + } + + mouse_scroll = ms_regs.h.bh; + + mouse_moved = !mouse_button && ms_regs.h.bl && + ms_regs.h.bl == old_ms.h.bl && + (((ms_regs.W.cx ^ old_ms.W.cx) >> 3) || + ((ms_regs.W.dx ^ old_ms.W.dx) >> 3)); + + if (mouse_scroll || mouse_button || mouse_moved) + return TRUE; + } + + if (old_shift && !shift_status) /* modifier released */ + { + if (!key_pressed && SP->return_key_modifiers) + return TRUE; + } + else if (!old_shift && shift_status) /* modifier pressed */ + key_pressed = FALSE; + + old_shift = shift_status; + +#ifndef USE_KBHIT + regs.h.ah = check_function; + PDCINT(0x16, regs); + + return !(regs.W.flags & 64); +#else + return kbhit(); +#endif +} + +static int _process_mouse_events(void) +{ + int i; + short shift_flags = 0; + + memset(&pdc_mouse_status, 0, sizeof(pdc_mouse_status)); + + key_pressed = TRUE; + old_shift = shift_status; + SP->key_code = TRUE; + + /* Set shift modifiers */ + + if (shift_status & 3) + shift_flags |= BUTTON_SHIFT; + + if (shift_status & 4) + shift_flags |= BUTTON_CONTROL; + + if (shift_status & 8) + shift_flags |= BUTTON_ALT; + + /* Scroll wheel support for CuteMouse */ + + if (mouse_scroll) + { + pdc_mouse_status.changes = mouse_scroll & 0x80 ? + PDC_MOUSE_WHEEL_UP : PDC_MOUSE_WHEEL_DOWN; + + pdc_mouse_status.x = -1; + pdc_mouse_status.y = -1; + + return KEY_MOUSE; + } + + if (mouse_moved) + { + pdc_mouse_status.changes = PDC_MOUSE_MOVED; + + for (i = 0; i < 3; i++) + { + if (ms_regs.h.bl & (1 << button_map[i])) + { + pdc_mouse_status.button[i] = BUTTON_MOVED | shift_flags; + pdc_mouse_status.changes |= (1 << i); + } + } + } + else /* button event */ + { + for (i = 0; i < 3; i++) + { + if (button[i].pressed) + { + /* Check for a click -- a PRESS followed + immediately by a release */ + + if (!button[i].released) + { + if (SP->mouse_wait) + { + PDCREGS regs; + + napms(SP->mouse_wait); + + regs.W.ax = 6; + regs.W.bx = button_map[i]; + PDCINT(0x33, regs); + + pdc_mouse_status.button[i] = regs.W.bx ? + BUTTON_CLICKED : BUTTON_PRESSED; + } + else + pdc_mouse_status.button[i] = BUTTON_PRESSED; + } + else + pdc_mouse_status.button[i] = BUTTON_CLICKED; + } + + if (button[i].pressed || button[i].released) + { + pdc_mouse_status.button[i] |= shift_flags; + pdc_mouse_status.changes |= (1 << i); + } + } + } + + pdc_mouse_status.x = ms_regs.W.cx >> 3; + pdc_mouse_status.y = ms_regs.W.dx >> 3; + + old_ms = ms_regs; + + return KEY_MOUSE; +} + +/* return the next available key or mouse event */ + +int PDC_get_key(void) +{ + PDCREGS regs; + int key, scan; + + pdc_key_modifiers = 0; + + if (mouse_vis && (mouse_scroll || mouse_button || mouse_moved)) + return _process_mouse_events(); + + /* Return modifiers as keys? */ + + if (old_shift && !shift_status) + { + key = -1; + + if (old_shift & 1) + key = KEY_SHIFT_R; + + if (old_shift & 2) + key = KEY_SHIFT_L; + + if (shift_function == 0x12) + { + if (old_shift & 0x400) + key = KEY_CONTROL_R; + + if (old_shift & 0x100) + key = KEY_CONTROL_L; + + if (old_shift & 0x800) + key = KEY_ALT_R; + + if (old_shift & 0x200) + key = KEY_ALT_L; + } + else + { + if (old_shift & 4) + key = KEY_CONTROL_R; + + if (old_shift & 8) + key = KEY_ALT_R; + } + + key_pressed = FALSE; + old_shift = shift_status; + + SP->key_code = TRUE; + return key; + } + + regs.h.ah = keyboard_function; + PDCINT(0x16, regs); + key = regs.h.al; + scan = regs.h.ah; + + if (SP->save_key_modifiers) + { + if (shift_status & 3) + pdc_key_modifiers |= PDC_KEY_MODIFIER_SHIFT; + + if (shift_status & 4) + pdc_key_modifiers |= PDC_KEY_MODIFIER_CONTROL; + + if (shift_status & 8) + pdc_key_modifiers |= PDC_KEY_MODIFIER_ALT; + + if (shift_status & 0x20) + pdc_key_modifiers |= PDC_KEY_MODIFIER_NUMLOCK; + } + + if (scan == 0x1c && key == 0x0a) /* ^Enter */ + key = CTL_ENTER; + else if (scan == 0xe0 && key == 0x0d) /* PadEnter */ + key = PADENTER; + else if (scan == 0xe0 && key == 0x0a) /* ^PadEnter */ + key = CTL_PADENTER; + else if (scan == 0x37 && key == 0x2a) /* Star */ + key = PADSTAR; + else if (scan == 0x4a && key == 0x2d) /* Minus */ + key = PADMINUS; + else if (scan == 0x4e && key == 0x2b) /* Plus */ + key = PADPLUS; + else if (scan == 0xe0 && key == 0x2f) /* Slash */ + key = PADSLASH; + else if (key == 0x00 || (key == 0xe0 && scan > 53 && scan != 86)) + key = (scan > 0xa7) ? -1 : key_table[scan]; + + if (shift_status & 3) + { + switch (key) + { + case KEY_HOME: /* Shift Home */ + key = KEY_SHOME; + break; + case KEY_UP: /* Shift Up */ + key = KEY_SUP; + break; + case KEY_PPAGE: /* Shift PgUp */ + key = KEY_SPREVIOUS; + break; + case KEY_LEFT: /* Shift Left */ + key = KEY_SLEFT; + break; + case KEY_RIGHT: /* Shift Right */ + key = KEY_SRIGHT; + break; + case KEY_END: /* Shift End */ + key = KEY_SEND; + break; + case KEY_DOWN: /* Shift Down */ + key = KEY_SDOWN; + break; + case KEY_NPAGE: /* Shift PgDn */ + key = KEY_SNEXT; + break; + case KEY_IC: /* Shift Ins */ + key = KEY_SIC; + break; + case KEY_DC: /* Shift Del */ + key = KEY_SDC; + } + } + + key_pressed = TRUE; + SP->key_code = ((unsigned)key >= 256); + + return key; +} + +/* discard any pending keyboard or mouse input -- this is the core + routine for flushinp() */ + +void PDC_flushinp(void) +{ + PDC_LOG(("PDC_flushinp() - called\n")); + + /* Force the BIOS keyboard buffer head and tail pointers to be + the same... Real nasty trick... */ + + setdosmemword(0x41a, getdosmemword(0x41c)); +} + +int PDC_mouse_set(void) +{ + PDCREGS regs; + unsigned long mbe = SP->_trap_mbe; + + if (mbe && !mouse_avail) + { + regs.W.ax = 0; + PDCINT(0x33, regs); + + mouse_avail = !!(regs.W.ax); + } + + if (mbe) + { + if (mouse_avail && !mouse_vis) + { + memset(&old_ms, 0, sizeof(old_ms)); + + regs.W.ax = 1; + PDCINT(0x33, regs); + + mouse_vis = TRUE; + } + } + else + { + if (mouse_avail && mouse_vis) + { + regs.W.ax = 2; + PDCINT(0x33, regs); + + mouse_vis = FALSE; + } + } + + return (mouse_avail || !mbe) ? OK : ERR; +} + +int PDC_modifiers_set(void) +{ + key_pressed = FALSE; + + return OK; +} |