#include #include #include #include #include #include "putty.h" #include "tree234.h" #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */ #define CL_VT100 0x0002 /* VT100 */ #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */ #define CL_VT102 0x0008 /* VT102 */ #define CL_VT220 0x0010 /* VT220 */ #define CL_VT320 0x0020 /* VT320 */ #define CL_VT420 0x0040 /* VT420 */ #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */ #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */ #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */ #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */ #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */ #define TM_VT100 (CL_ANSIMIN|CL_VT100) #define TM_VT100AVO (TM_VT100|CL_VT100AVO) #define TM_VT102 (TM_VT100AVO|CL_VT102) #define TM_VT220 (TM_VT102|CL_VT220) #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320) #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI) #define TM_PUTTY (0xFFFF) #define compatibility(x) \ if ( ((CL_##x)&compatibility_level) == 0 ) { \ termstate=TOPLEVEL; \ break; \ } #define compatibility2(x,y) \ if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \ termstate=TOPLEVEL; \ break; \ } #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 ) static int compatibility_level = TM_PUTTY; static tree234 *scrollback; /* lines scrolled off top of screen */ static tree234 *screen; /* lines on primary screen */ static tree234 *alt_screen; /* lines on alternate screen */ static int disptop; /* distance scrolled back (0 or negative) */ static unsigned long *cpos; /* cursor position (convenience) */ static unsigned long *disptext; /* buffer of text on real screen */ static unsigned long *wanttext; /* buffer of text we want on screen */ #define VBELL_TIMEOUT 100 /* millisecond duration of visual bell */ struct beeptime { struct beeptime *next; long ticks; }; static struct beeptime *beephead, *beeptail; int nbeeps; int beep_overloaded; long lastbeep; static unsigned char *selspace; /* buffer for building selections in */ #define TSIZE (sizeof(unsigned long)) #define lineptr(x) ( (unsigned long *) \ ((x) >= 0 ? index234(screen, x) : \ index234(scrollback, (x)+count234(scrollback)) ) ) #define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0) static unsigned long curr_attr, save_attr; static unsigned long erase_char = ERASE_CHAR; typedef struct { int y, x; } pos; #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) ) #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) ) #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x ) #define posdiff(p1,p2) ( ((p2).y - (p1).y) * (cols+1) + (p2).x - (p1).x ) #define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) ) #define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) ) static pos curs; /* cursor */ static pos savecurs; /* saved cursor position */ static int marg_t, marg_b; /* scroll margins */ static int dec_om; /* DEC origin mode flag */ static int wrap, wrapnext; /* wrap flags */ static int insert; /* insert-mode flag */ static int cset; /* 0 or 1: which char set */ static int save_cset, save_csattr; /* saved with cursor position */ static int rvideo; /* global reverse video flag */ static int cursor_on; /* cursor enabled flag */ static int reset_132; /* Flag ESC c resets to 80 cols */ static int use_bce; /* Use Background coloured erase */ static int blinker; /* When blinking is the cursor on ? */ static int tblinker; /* When the blinking text is on */ static int blink_is_real; /* Actually blink blinking text */ static int term_echoing; /* Does terminal want local echo? */ static int term_editing; /* Does terminal want local edit? */ static unsigned long cset_attr[2]; /* * Saved settings on the alternate screen. */ static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset; static int alt_t, alt_b; static int alt_which; #define ARGS_MAX 32 /* max # of esc sequence arguments */ #define ARG_DEFAULT 0 /* if an arg isn't specified */ #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) ) static int esc_args[ARGS_MAX]; static int esc_nargs; static int esc_query; #define ANSI(x,y) ((x)+((y)<<8)) #define ANSI_QUE(x) ANSI(x,TRUE) #define OSC_STR_MAX 2048 static int osc_strlen; static char osc_string[OSC_STR_MAX+1]; static int osc_w; static char id_string[1024] = "\033[?6c"; static unsigned char *tabs; static enum { TOPLEVEL, SEEN_ESC, SEEN_CSI, SEEN_OSC, SEEN_OSC_W, DO_CTRLS, IGNORE_NEXT, SET_GL, SET_GR, SEEN_OSC_P, OSC_STRING, OSC_MAYBE_ST, SEEN_ESCHASH, VT52_ESC, VT52_Y1, VT52_Y2 } termstate; static enum { NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED } selstate; static enum { SM_CHAR, SM_WORD, SM_LINE } selmode; static pos selstart, selend, selanchor; static short wordness[256] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 01 */ 0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1, /* 23 */ 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */ 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1, /* 67 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 89 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* AB */ 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* CD */ 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* EF */ }; static unsigned char sel_nl[] = SEL_NL; static char * paste_buffer = 0; static int paste_len, paste_pos, paste_hold; /* * Internal prototypes. */ static void do_paint (Context, int); static void erase_lots (int, int, int); static void swap_screen (int); static void update_sbar (void); static void deselect (void); /* log session to file stuff ... */ static FILE *lgfp = NULL; static void logtraffic(unsigned char c, int logmode); /* * Set up power-on settings for the terminal. */ static void power_on(void) { curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0; alt_t = marg_t = 0; if (rows != -1) alt_b = marg_b = rows - 1; else alt_b = marg_b = 0; if (cols != -1) { int i; for (i = 0; i < cols; i++) tabs[i] = (i % 8 == 0 ? TRUE : FALSE); } alt_om = dec_om = cfg.dec_om; alt_wnext = wrapnext = alt_ins = insert = FALSE; alt_wrap = wrap = cfg.wrap_mode; alt_cset = cset = 0; cset_attr[0] = cset_attr[1] = ATTR_ASCII; rvideo = 0; in_vbell = FALSE; cursor_on = 1; save_attr = curr_attr = ATTR_DEFAULT; term_editing = term_echoing = FALSE; ldisc_send(NULL, 0); /* cause ldisc to notice changes */ app_cursor_keys = cfg.app_cursor; app_keypad_keys = cfg.app_keypad; use_bce = cfg.bce; blink_is_real = cfg.blinktext; erase_char = ERASE_CHAR; alt_which = 0; { int i; for (i = 0; i < 256; i++) wordness[i] = cfg.wordness[i]; } if (screen) { swap_screen (1); erase_lots (FALSE, TRUE, TRUE); swap_screen (0); erase_lots (FALSE, TRUE, TRUE); } } /* * Force a screen update. */ void term_update(void) { Context ctx; ctx = get_ctx(); if (ctx) { if ( (seen_key_event && (cfg.scroll_on_key)) || (seen_disp_event && (cfg.scroll_on_disp)) ) { disptop = 0; /* return to main screen */ seen_disp_event = seen_key_event = 0; update_sbar(); } do_paint (ctx, TRUE); sys_cursor(curs.x, curs.y - disptop); free_ctx (ctx); } } /* * Same as power_on(), but an external function. */ void term_pwron(void) { power_on(); fix_cpos; disptop = 0; deselect(); term_update(); } /* * Clear the scrollback. */ void term_clrsb(void) { unsigned long *line; disptop = 0; while ((line = delpos234(scrollback, 0)) != NULL) { sfree(line); } update_sbar(); } /* * Initialise the terminal. */ void term_init(void) { screen = alt_screen = scrollback = NULL; disptop = 0; disptext = wanttext = NULL; tabs = NULL; selspace = NULL; deselect(); rows = cols = -1; power_on(); beephead = beeptail = NULL; nbeeps = 0; lastbeep = FALSE; beep_overloaded = FALSE; } /* * Set up the terminal for a given size. */ void term_size(int newrows, int newcols, int newsavelines) { tree234 *newsb, *newscreen, *newalt; unsigned long *newdisp, *newwant, *oldline, *line; int i, j, crows, ccols; int posn, oldposn, furthest_back, oldsbsize; int save_alt_which = alt_which; if (newrows == rows && newcols == cols && newsavelines == savelines) return; /* nothing to do */ deselect(); swap_screen(0); alt_t = marg_t = 0; alt_b = marg_b = newrows - 1; newsb = newtree234(NULL); newscreen = newtree234(NULL); ccols = (cols < newcols ? cols : newcols); oldsbsize = scrollback ? count234(scrollback) : 0; furthest_back = newrows - rows - oldsbsize; if (furthest_back > 0) furthest_back = 0; if (furthest_back < -newsavelines) furthest_back = -newsavelines; for (posn = newrows; posn-- > furthest_back ;) { oldposn = posn - newrows + rows; if (rows == -1 || oldposn < -oldsbsize) { line = smalloc(TSIZE * (newcols + 1)); for (j = 0; j < newcols; j++) line[j] = erase_char; line[newcols] = 0; } else { oldline = (oldposn >= 0 ? delpos234(screen, count234(screen)-1) : delpos234(scrollback, count234(scrollback)-1)); if (newcols != cols) { line = smalloc(TSIZE * (newcols + 1)); for (j = 0; j < ccols; j++) line[j] = oldline[j]; for (j = ccols; j < newcols; j++) line[j] = erase_char; line[newcols] = oldline[cols] & LATTR_MODE; sfree(oldline); } else { line = oldline; } } if (posn >= 0) addpos234(newscreen, line, 0); else addpos234(newsb, line, 0); } disptop = 0; if (scrollback) freetree234(scrollback); if (screen) freetree234(screen); scrollback = newsb; screen = newscreen; newdisp = smalloc (newrows*(newcols+1)*TSIZE); for (i=0; i 0 ? cols : 0); i < newcols; i++) tabs[i] = (i % 8 == 0 ? TRUE : FALSE); } if (rows > 0) curs.y += newrows - rows; if (curs.y < 0) curs.y = 0; if (curs.y >= newrows) curs.y = newrows-1; if (curs.x >= newcols) curs.x = newcols-1; alt_x = alt_y = 0; wrapnext = alt_wnext = FALSE; rows = newrows; cols = newcols; savelines = newsavelines; fix_cpos; swap_screen(save_alt_which); update_sbar(); term_update(); } /* * Swap screens. */ static void swap_screen (int which) { int t; unsigned long tt; tree234 *ttr; if (which == alt_which) return; alt_which = which; ttr = alt_screen; alt_screen = screen; screen = ttr; t = curs.x; curs.x = alt_x; alt_x = t; t = curs.y; curs.y = alt_y; alt_y = t; t = marg_t; marg_t = alt_t; alt_t = t; t = marg_b; marg_b = alt_b; alt_b = t; t = dec_om; dec_om = alt_om; alt_om = t; t = wrap; wrap = alt_wrap; alt_wrap = t; t = wrapnext; wrapnext = alt_wnext; alt_wnext = t; t = insert; insert = alt_ins; alt_ins = t; t = cset; cset = alt_cset; alt_cset = t; fix_cpos; } /* * Update the scroll bar. */ static void update_sbar(void) { int nscreen, nscroll; nscroll = count234(scrollback); set_sbar (nscroll + rows, nscroll + disptop, rows); } /* * Check whether the region bounded by the two pointers intersects * the scroll region, and de-select the on-screen selection if so. */ static void check_selection (pos from, pos to) { if (poslt(from, selend) && poslt(selstart, to)) deselect(); } /* * Scroll the screen. (`lines' is +ve for scrolling forward, -ve * for backward.) `sb' is TRUE if the scrolling is permitted to * affect the scrollback buffer. */ static void scroll (int topline, int botline, int lines, int sb) { unsigned long *line, *line2; int i; if (topline != 0) sb = FALSE; if (lines < 0) { while (lines < 0) { line = delpos234(screen, botline); for (i = 0; i < cols; i++) line[i] = erase_char; line[cols] = 0; addpos234(screen, line, topline); if (selstart.y >= topline && selstart.y <= botline) { selstart.y++; if (selstart.y > botline) { selstart.y = botline; selstart.x = 0; } } if (selend.y >= topline && selend.y <= botline) { selend.y++; if (selend.y > botline) { selend.y = botline; selend.x = 0; } } lines++; } } else { while (lines > 0) { line = delpos234(screen, topline); if (sb) { int sblen = count234(scrollback); /* * We must add this line to the scrollback. We'll * remove a line from the top of the scrollback to * replace it, or allocate a new one if the * scrollback isn't full. */ if (sblen == savelines) sblen--, line2 = delpos234(scrollback, 0); else line2 = smalloc(TSIZE * (cols+1)); addpos234(scrollback, line, sblen); line = line2; } for (i = 0; i < cols; i++) line[i] = erase_char; line[cols] = 0; addpos234(screen, line, botline); if (selstart.y >= topline && selstart.y <= botline) { selstart.y--; if (selstart.y < topline) { selstart.y = topline; selstart.x = 0; } } if (selend.y >= topline && selend.y <= botline) { selend.y--; if (selend.y < topline) { selend.y = topline; selend.x = 0; } } lines--; } } } /* * Move the cursor to a given position, clipping at boundaries. We * may or may not want to clip at the scroll margin: marg_clip is 0 * not to, 1 to disallow _passing_ the margins, and 2 to disallow * even _being_ outside the margins. */ static void move (int x, int y, int marg_clip) { if (x < 0) x = 0; if (x >= cols) x = cols-1; if (marg_clip) { if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t) y = marg_t; if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b) y = marg_b; } if (y < 0) y = 0; if (y >= rows) y = rows-1; curs.x = x; curs.y = y; fix_cpos; wrapnext = FALSE; } /* * Save or restore the cursor and SGR mode. */ static void save_cursor(int save) { if (save) { savecurs = curs; save_attr = curr_attr; save_cset = cset; save_csattr = cset_attr[cset]; } else { curs = savecurs; /* Make sure the window hasn't shrunk since the save */ if (curs.x >= cols) curs.x = cols-1; if (curs.y >= rows) curs.y = rows-1; curr_attr = save_attr; cset = save_cset; cset_attr[cset] = save_csattr; fix_cpos; if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); } } /* * Erase a large portion of the screen: the whole screen, or the * whole line, or parts thereof. */ static void erase_lots (int line_only, int from_begin, int to_end) { pos start, end, here; int erase_lattr; unsigned long *ldata; if (line_only) { start.y = curs.y; start.x = 0; end.y = curs.y + 1; end.x = 0; erase_lattr = FALSE; } else { start.y = 0; start.x = 0; end.y = rows; end.x = 0; erase_lattr = TRUE; } if (!from_begin) { start = curs; } if (!to_end) { end = curs; } check_selection (start, end); /* Clear screen also forces a full window redraw, just in case. */ if (start.y == 0 && start.x == 0 && end.y == rows) term_invalidate(); ldata = lineptr(start.y); while (poslt(start, end)) { if (start.y == cols && !erase_lattr) ldata[start.x] &= ~ATTR_WRAPPED; else ldata[start.x] = erase_char; if (incpos(start)) ldata = lineptr(start.y); } } /* * Insert or delete characters within the current line. n is +ve if * insertion is desired, and -ve for deletion. */ static void insch (int n) { int dir = (n < 0 ? -1 : +1); int m; pos cursplus; unsigned long *ldata; n = (n < 0 ? -n : n); if (n > cols - curs.x) n = cols - curs.x; m = cols - curs.x - n; cursplus.y = curs.y; cursplus.x = curs.x + n; check_selection (curs, cursplus); ldata = lineptr(curs.y); if (dir < 0) { memmove (ldata + curs.x, ldata + curs.x + n, m*TSIZE); while (n--) ldata[curs.x + m++] = erase_char; } else { memmove (ldata + curs.x + n, ldata + curs.x, m*TSIZE); while (n--) ldata[curs.x + n] = erase_char; } } /* * Toggle terminal mode `mode' to state `state'. (`query' indicates * whether the mode is a DEC private one or a normal one.) */ static void toggle_mode (int mode, int query, int state) { if (query) switch (mode) { case 1: /* application cursor keys */ app_cursor_keys = state; break; case 2: /* VT52 mode */ vt52_mode = !state; break; case 3: /* 80/132 columns */ deselect(); request_resize (state ? 132 : 80, rows, 1); reset_132 = state; break; case 5: /* reverse video */ rvideo = state; seen_disp_event = TRUE; if (state) term_update(); break; case 6: /* DEC origin mode */ dec_om = state; break; case 7: /* auto wrap */ wrap = state; break; case 8: /* auto key repeat */ repeat_off = !state; break; case 10: /* set local edit mode */ term_editing = state; ldisc_send(NULL, 0); /* cause ldisc to notice changes */ break; case 25: /* enable/disable cursor */ compatibility2(OTHER,VT220); cursor_on = state; seen_disp_event = TRUE; break; case 47: /* alternate screen */ compatibility(OTHER); deselect(); swap_screen (state); disptop = 0; break; } else switch (mode) { case 4: /* set insert mode */ compatibility(VT102); insert = state; break; case 12: /* set echo mode */ term_echoing = !state; ldisc_send(NULL, 0); /* cause ldisc to notice changes */ break; case 20: /* Return sends ... */ cr_lf_return = state; break; } } /* * Process an OSC sequence: set window title or icon name. */ static void do_osc(void) { if (osc_w) { while (osc_strlen--) wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0]; } else { osc_string[osc_strlen] = '\0'; switch (esc_args[0]) { case 0: case 1: set_icon (osc_string); if (esc_args[0] == 1) break; /* fall through: parameter 0 means set both */ case 2: case 21: set_title (osc_string); break; } } } /* * Remove everything currently in `inbuf' and stick it up on the * in-memory display. There's a big state machine in here to * process escape sequences... */ void term_out(void) { int c, inbuf_reap; for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++) { c = inbuf[inbuf_reap]; /* * Optionally log the session traffic to a file. Useful for * debugging and possibly also useful for actual logging. */ logtraffic((unsigned char)c, LGTYP_DEBUG); /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even * be able to display 8-bit characters, but I'll let that go 'cause * of i18n. */ if( ( (c&0x60) == 0 || c == '\177') && termstate < DO_CTRLS && ( (c&0x80) == 0 || has_compat(VT220))) { switch (c) { case '\005': /* terminal type query */ /* Strictly speaking this is VT100 but a VT100 defaults to * no response. Other terminals respond at their option. * * Don't put a CR in the default string as this tends to * upset some weird software. * * An xterm returns "xterm" (5 characters) */ compatibility(ANSIMIN); { char abuf[256], *s, *d; int state=0; for(s=cfg.answerback, d=abuf; *s; s++) { if (state) { if (*s >= 'a' && *s <= 'z') *d++ = (*s - ('a'-1)); else if ((*s >='@' && *s<='_') || *s == '?' || (*s&0x80)) *d++ = ('@'^*s); else if (*s == '~') *d++ = '^'; state = 0; } else if (*s == '^') { state = 1; } else *d++ = xlat_kbd2tty((unsigned char)*s); } ldisc_send (abuf, d-abuf); } break; case '\007': { struct beeptime *newbeep; long ticks; ticks = GetTickCount(); if (!beep_overloaded) { newbeep = smalloc(sizeof(struct beeptime)); newbeep->ticks = ticks; newbeep->next = NULL; if (!beephead) beephead = newbeep; else beeptail->next = newbeep; beeptail = newbeep; nbeeps++; } /* * Throw out any beeps that happened more than * t seconds ago. */ while (beephead && beephead->ticks < ticks - cfg.bellovl_t*1000) { struct beeptime *tmp = beephead; beephead = tmp->next; sfree(tmp); if (!beephead) beeptail = NULL; nbeeps--; } if (cfg.bellovl && beep_overloaded && ticks-lastbeep >= cfg.bellovl_s * 1000) { /* * If we're currently overloaded and the * last beep was more than s seconds ago, * leave overload mode. */ beep_overloaded = FALSE; } else if (cfg.bellovl && !beep_overloaded && nbeeps >= cfg.bellovl_n) { /* * Now, if we have n or more beeps * remaining in the queue, go into overload * mode. */ beep_overloaded = TRUE; } lastbeep = ticks; /* * Perform an actual beep if we're not overloaded. */ if ((!cfg.bellovl || !beep_overloaded) && cfg.beep != 0) { if (cfg.beep != 2) beep(cfg.beep); else if(cfg.beep == 2) { in_vbell = TRUE; vbell_timeout = ticks + VBELL_TIMEOUT; term_update(); } } disptop = 0; } break; case '\b': if (curs.x == 0 && curs.y == 0) ; else if (curs.x == 0 && curs.y > 0) curs.x = cols-1, curs.y--; else if (wrapnext) wrapnext = FALSE; else curs.x--; fix_cpos; seen_disp_event = TRUE; break; case '\016': compatibility(VT100); cset = 1; break; case '\017': compatibility(VT100); cset = 0; break; case '\033': if (vt52_mode) termstate = VT52_ESC; else { compatibility(ANSIMIN); termstate = SEEN_ESC; } break; case 0233: compatibility(VT220); termstate = SEEN_CSI; esc_nargs = 1; esc_args[0] = ARG_DEFAULT; esc_query = FALSE; break; case 0235: compatibility(VT220); termstate = SEEN_OSC; esc_args[0] = 0; break; case '\r': curs.x = 0; wrapnext = FALSE; fix_cpos; seen_disp_event = TRUE; paste_hold = 0; logtraffic((unsigned char)c,LGTYP_ASCII); break; case '\013': case '\014': compatibility(VT100); case '\n': if (curs.y == marg_b) scroll (marg_t, marg_b, 1, TRUE); else if (curs.y < rows-1) curs.y++; if (cfg.lfhascr) curs.x = 0; fix_cpos; wrapnext = FALSE; seen_disp_event = 1; paste_hold = 0; logtraffic((unsigned char)c,LGTYP_ASCII); break; case '\t': { pos old_curs = curs; unsigned long *ldata = lineptr(curs.y); do { curs.x++; } while (curs.x < cols-1 && !tabs[curs.x]); if ((ldata[cols] & LATTR_MODE) != LATTR_NORM) { if (curs.x >= cols/2) curs.x = cols/2-1; } else { if (curs.x >= cols) curs.x = cols-1; } fix_cpos; check_selection (old_curs, curs); } seen_disp_event = TRUE; break; case '\177': /* Destructive backspace This does nothing on a real VT100 */ compatibility(OTHER); if (curs.x && !wrapnext) curs.x--; wrapnext = FALSE; fix_cpos; *cpos = (' ' | curr_attr | ATTR_ASCII); break; } } else switch (termstate) { case TOPLEVEL: /* Only graphic characters get this far, ctrls are stripped above */ if (wrapnext && wrap) { cpos[1] |= ATTR_WRAPPED; if (curs.y == marg_b) scroll (marg_t, marg_b, 1, TRUE); else if (curs.y < rows-1) curs.y++; curs.x = 0; fix_cpos; wrapnext = FALSE; } if (insert) insch (1); if (selstate != NO_SELECTION) { pos cursplus = curs; incpos(cursplus); check_selection (curs, cursplus); } switch (cset_attr[cset]) { /* * Linedraw characters are different from 'ESC ( B' * only for a small range. For ones outside that * range, make sure we use the same font as well as * the same encoding. */ case ATTR_LINEDRW: if (c<0x5f || c>0x7F) *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr | ATTR_ASCII; else if (c==0x5F) *cpos++ = ' ' | curr_attr | ATTR_ASCII; else *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW; break; case ATTR_GBCHR: /* If UK-ASCII, make the '#' a LineDraw Pound */ if (c == '#') { *cpos++ = '}' | curr_attr | ATTR_LINEDRW; break; } /*FALLTHROUGH*/ default: *cpos = xlat_tty2scr((unsigned char)c) | curr_attr | (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII); logtraffic((unsigned char)c, LGTYP_ASCII); cpos++; break; } curs.x++; if (curs.x == cols) { cpos--; curs.x--; wrapnext = TRUE; } seen_disp_event = 1; break; case IGNORE_NEXT: termstate = TOPLEVEL; break; case OSC_MAYBE_ST: /* * This state is virtually identical to SEEN_ESC, with the * exception that we have an OSC sequence in the pipeline, * and _if_ we see a backslash, we process it. */ if (c == '\\') { do_osc(); termstate = TOPLEVEL; break; } /* else fall through */ case SEEN_ESC: termstate = TOPLEVEL; switch (c) { case ' ': /* some weird sequence? */ compatibility(VT220); termstate = IGNORE_NEXT; break; case '[': /* enter CSI mode */ termstate = SEEN_CSI; esc_nargs = 1; esc_args[0] = ARG_DEFAULT; esc_query = FALSE; break; case ']': /* xterm escape sequences */ /* Compatibility is nasty here, xterm, linux, decterm yuk! */ compatibility(OTHER); termstate = SEEN_OSC; esc_args[0] = 0; break; case '(': /* should set GL */ compatibility(VT100); termstate = SET_GL; break; case ')': /* should set GR */ compatibility(VT100); termstate = SET_GR; break; case '7': /* save cursor */ compatibility(VT100); save_cursor (TRUE); break; case '8': /* restore cursor */ compatibility(VT100); save_cursor (FALSE); seen_disp_event = TRUE; break; case '=': compatibility(VT100); app_keypad_keys = TRUE; break; case '>': compatibility(VT100); app_keypad_keys = FALSE; break; case 'D': /* exactly equivalent to LF */ compatibility(VT100); if (curs.y == marg_b) scroll (marg_t, marg_b, 1, TRUE); else if (curs.y < rows-1) curs.y++; fix_cpos; wrapnext = FALSE; seen_disp_event = TRUE; break; case 'E': /* exactly equivalent to CR-LF */ compatibility(VT100); curs.x = 0; if (curs.y == marg_b) scroll (marg_t, marg_b, 1, TRUE); else if (curs.y < rows-1) curs.y++; fix_cpos; wrapnext = FALSE; seen_disp_event = TRUE; break; case 'M': /* reverse index - backwards LF */ compatibility(VT100); if (curs.y == marg_t) scroll (marg_t, marg_b, -1, TRUE); else if (curs.y > 0) curs.y--; fix_cpos; wrapnext = FALSE; seen_disp_event = TRUE; break; case 'Z': /* terminal type query */ compatibility(VT100); ldisc_send (id_string, strlen(id_string)); break; case 'c': /* restore power-on settings */ compatibility(VT100); power_on(); if (reset_132) { request_resize (80, rows, 1); reset_132 = 0; } fix_cpos; disptop = 0; seen_disp_event = TRUE; break; case '#': /* ESC # 8 fills screen with Es :-) */ compatibility(VT100); termstate = SEEN_ESCHASH; break; case 'H': /* set a tab */ compatibility(VT100); tabs[curs.x] = TRUE; break; } break; case SEEN_CSI: termstate = TOPLEVEL; /* default */ if( isdigit(c) ) { if (esc_nargs <= ARGS_MAX) { if (esc_args[esc_nargs-1] == ARG_DEFAULT) esc_args[esc_nargs-1] = 0; esc_args[esc_nargs-1] = 10 * esc_args[esc_nargs-1] + c - '0'; } termstate = SEEN_CSI; } else if( c == ';' ) { if (++esc_nargs <= ARGS_MAX) esc_args[esc_nargs-1] = ARG_DEFAULT; termstate = SEEN_CSI; } else if( c < '@' ) { if( esc_query ) esc_query = -1; else if( c == '?' ) esc_query = TRUE; else esc_query = c; termstate = SEEN_CSI; } else switch (ANSI(c,esc_query)) { case 'A': /* move up N lines */ move (curs.x, curs.y - def(esc_args[0], 1), 1); seen_disp_event = TRUE; break; case 'e': /* move down N lines */ compatibility(ANSI); case 'B': move (curs.x, curs.y + def(esc_args[0], 1), 1); seen_disp_event = TRUE; break; case 'a': /* move right N cols */ compatibility(ANSI); case 'C': move (curs.x + def(esc_args[0], 1), curs.y, 1); seen_disp_event = TRUE; break; case 'D': /* move left N cols */ move (curs.x - def(esc_args[0], 1), curs.y, 1); seen_disp_event = TRUE; break; case 'E': /* move down N lines and CR */ compatibility(ANSI); move (0, curs.y + def(esc_args[0], 1), 1); seen_disp_event = TRUE; break; case 'F': /* move up N lines and CR */ compatibility(ANSI); move (0, curs.y - def(esc_args[0], 1), 1); seen_disp_event = TRUE; break; case 'G': case '`': /* set horizontal posn */ compatibility(ANSI); move (def(esc_args[0], 1) - 1, curs.y, 0); seen_disp_event = TRUE; break; case 'd': /* set vertical posn */ compatibility(ANSI); move (curs.x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, (dec_om ? 2 : 0)); seen_disp_event = TRUE; break; case 'H': case 'f': /* set horz and vert posns at once */ if (esc_nargs < 2) esc_args[1] = ARG_DEFAULT; move (def(esc_args[1], 1) - 1, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1, (dec_om ? 2 : 0)); seen_disp_event = TRUE; break; case 'J': /* erase screen or parts of it */ { unsigned int i = def(esc_args[0], 0) + 1; if (i > 3) i = 0; erase_lots(FALSE, !!(i & 2), !!(i & 1)); } disptop = 0; seen_disp_event = TRUE; break; case 'K': /* erase line or parts of it */ { unsigned int i = def(esc_args[0], 0) + 1; if (i > 3) i = 0; erase_lots(TRUE, !!(i & 2), !!(i & 1)); } seen_disp_event = TRUE; break; case 'L': /* insert lines */ compatibility(VT102); if (curs.y <= marg_b) scroll (curs.y, marg_b, -def(esc_args[0], 1), FALSE); seen_disp_event = TRUE; break; case 'M': /* delete lines */ compatibility(VT102); if (curs.y <= marg_b) scroll (curs.y, marg_b, def(esc_args[0], 1), TRUE); seen_disp_event = TRUE; break; case '@': /* insert chars */ /* XXX VTTEST says this is vt220, vt510 manual says vt102 */ compatibility(VT102); insch (def(esc_args[0], 1)); seen_disp_event = TRUE; break; case 'P': /* delete chars */ compatibility(VT102); insch (-def(esc_args[0], 1)); seen_disp_event = TRUE; break; case 'c': /* terminal type query */ compatibility(VT100); /* This is the response for a VT102 */ ldisc_send (id_string, strlen(id_string)); break; case 'n': /* cursor position query */ if (esc_args[0] == 6) { char buf[32]; sprintf (buf, "\033[%d;%dR", curs.y + 1, curs.x + 1); ldisc_send (buf, strlen(buf)); } else if (esc_args[0] == 5) { ldisc_send ("\033[0n", 4); } break; case 'h': /* toggle modes to high */ case ANSI_QUE('h'): compatibility(VT100); { int i; for (i=0; i= rows) bot = rows-1; /* VTTEST Bug 9 - if region is less than 2 lines * don't change region. */ if (bot-top > 0) { marg_t = top; marg_b = bot; curs.x = 0; /* * I used to think the cursor should be * placed at the top of the newly marginned * area. Apparently not: VMS TPU falls over * if so. * * Well actually it should for Origin mode - RDB */ curs.y = (dec_om ? marg_t : 0); fix_cpos; seen_disp_event = TRUE; } } break; case 'm': /* set graphics rendition */ { /* * A VT100 without the AVO only had one attribute, either * underline or reverse video depending on the cursor type, * this was selected by CSI 7m. * * case 2: * This is DIM on the VT100-AVO and VT102 * case 5: * This is BLINK on the VT100-AVO and VT102+ * case 8: * This is INVIS on the VT100-AVO and VT102 * case 21: * This like 22 disables BOLD, DIM and INVIS * * The ANSI colours appear on any terminal that has colour * (obviously) but the interaction between sgr0 and the * colours varies but is usually related to the background * colour erase item. * The interaction between colour attributes and the mono * ones is also very implementation dependent. * * The 39 and 49 attributes are likely to be unimplemented. */ int i; for (i=0; i=24)) { request_resize (cols, def(esc_args[0], 24), 0); deselect(); } break; case ANSI('|', '*'): /* VT420 sequence DECSNLS * Set number of lines on screen * VT420 uses VGA like hardware and can support any size in * reasonable range (24..49 AIUI) with no default specified. */ compatibility(VT420); if (esc_nargs==1 && esc_args[0]>0) { request_resize (cols, def(esc_args[0], cfg.height), 0); deselect(); } break; case ANSI('|', '$'): /* VT340/VT420 sequence DECSCPP * Set number of columns per page * Docs imply range is only 80 or 132, but I'll allow any. */ compatibility(VT340TEXT); if (esc_nargs<=1) { request_resize (def(esc_args[0], cfg.width), rows, 0); deselect(); } break; case 'X': /* write N spaces w/o moving cursor */ /* XXX VTTEST says this is vt220, vt510 manual says vt100 */ compatibility(ANSIMIN); { int n = def(esc_args[0], 1); pos cursplus; unsigned long *p = cpos; if (n > cols - curs.x) n = cols - curs.x; cursplus = curs; cursplus.x += n; check_selection (curs, cursplus); while (n--) *p++ = erase_char; seen_disp_event = TRUE; } break; case 'x': /* report terminal characteristics */ compatibility(VT100); { char buf[32]; int i = def(esc_args[0], 0); if (i == 0 || i == 1) { strcpy (buf, "\033[2;1;1;112;112;1;0x"); buf[2] += i; ldisc_send (buf, 20); } } break; case ANSI('L','='): compatibility(OTHER); use_bce = (esc_args[0]<=0); erase_char = ERASE_CHAR; if (use_bce) erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK))); break; case ANSI('E','='): compatibility(OTHER); blink_is_real = (esc_args[0]>=1); break; case ANSI('p','"'): /* Allow the host to make this emulator a 'perfect' VT102. * This first appeared in the VT220, but we do need to get * back to PuTTY mode so I won't check it. * * The arg in 40..42 are a PuTTY extension. * The 2nd arg, 8bit vs 7bit is not checked. * * Setting VT102 mode should also change the Fkeys to * generate PF* codes as a real VT102 has no Fkeys. * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys * send nothing. * * Note ESC c will NOT change this! */ switch (esc_args[0]) { case 61: compatibility_level &= ~TM_VTXXX; compatibility_level |= TM_VT102; break; case 62: compatibility_level &= ~TM_VTXXX; compatibility_level |= TM_VT220; break; default: if( esc_args[0] > 60 && esc_args[0] < 70 ) compatibility_level |= TM_VTXXX; break; case 40: compatibility_level &= TM_VTXXX; break; case 41: compatibility_level = TM_PUTTY; break; case 42: compatibility_level = TM_SCOANSI; break; case ARG_DEFAULT: compatibility_level = TM_PUTTY; break; case 50: break; } /* Change the response to CSI c */ if (esc_args[0] == 50) { int i; char lbuf[64]; strcpy(id_string, "\033[?"); for (i=1; i= '0' && c <= '9') val = c - '0'; else if (c >= 'A' && c <= 'A'+max-10) val = c - 'A' + 10; else if (c >= 'a' && c <= 'a'+max-10) val = c - 'a' + 10; else termstate = TOPLEVEL; osc_string[osc_strlen++] = val; if (osc_strlen >= 7) { palette_set (osc_string[0], osc_string[1] * 16 + osc_string[2], osc_string[3] * 16 + osc_string[4], osc_string[5] * 16 + osc_string[6]); term_invalidate(); termstate = TOPLEVEL; } } break; case SEEN_OSC_W: switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': esc_args[0] = 10 * esc_args[0] + c - '0'; break; default: termstate = OSC_STRING; osc_strlen = 0; } break; case SEEN_ESCHASH: { unsigned long *p; unsigned long nlattr; unsigned long *ldata; int i, j; pos scrtop, scrbot; switch (c) { case '8': for (i = 0; i < rows; i++) { ldata = lineptr(i); for (j = 0; j < cols; j++) ldata[j] = ATTR_DEFAULT | 'E'; ldata[cols] = 0; } disptop = 0; seen_disp_event = TRUE; scrtop.x = scrtop.y = 0; scrbot.x = 0; scrbot.y = rows; check_selection (scrtop, scrbot); break; case '3': nlattr = LATTR_TOP; goto lattr_common; case '4': nlattr = LATTR_BOT; goto lattr_common; case '5': nlattr = LATTR_NORM; goto lattr_common; case '6': nlattr = LATTR_WIDE; lattr_common: ldata = lineptr(curs.y); ldata[cols] &= ~LATTR_MODE; ldata[cols] |= nlattr; } } termstate = TOPLEVEL; break; case VT52_ESC: termstate = TOPLEVEL; seen_disp_event = TRUE; switch (c) { case 'A': move (curs.x, curs.y - 1, 1); break; case 'B': move (curs.x, curs.y + 1, 1); break; case 'C': move (curs.x + 1, curs.y, 1); break; case 'D': move (curs.x - 1, curs.y, 1); break; case 'F': cset_attr[cset=0] = ATTR_LINEDRW; break; case 'G': cset_attr[cset=0] = ATTR_ASCII; break; case 'H': move (0, 0, 0); break; case 'I': if (curs.y == 0) scroll (0, rows-1, -1, TRUE); else if (curs.y > 0) curs.y--; fix_cpos; wrapnext = FALSE; break; case 'J': erase_lots(FALSE, FALSE, TRUE); disptop = 0; break; case 'K': erase_lots(TRUE, FALSE, TRUE); break; case 'V': /* XXX Print cursor line */ break; case 'W': /* XXX Start controller mode */ break; case 'X': /* XXX Stop controller mode */ break; case 'Y': termstate = VT52_Y1; break; case 'Z': ldisc_send ("\033/Z", 3); break; case '=': app_keypad_keys = TRUE; break; case '>': app_keypad_keys = FALSE; break; case '<': /* XXX This should switch to VT100 mode not current or default * VT mode. But this will only have effect in a VT220+ * emulation. */ vt52_mode = FALSE; break; case '^': /* XXX Enter auto print mode */ break; case '_': /* XXX Exit auto print mode */ break; case ']': /* XXX Print screen */ break; } break; case VT52_Y1: termstate = VT52_Y2; move(curs.x, c-' ', 0); break; case VT52_Y2: termstate = TOPLEVEL; move(c-' ', curs.y, 0); break; } if (selstate != NO_SELECTION) { pos cursplus = curs; incpos(cursplus); check_selection (curs, cursplus); } } inbuf_head = 0; } /* * Compare two lines to determine whether they are sufficiently * alike to scroll-optimise one to the other. Return the degree of * similarity. */ static int linecmp (unsigned long *a, unsigned long *b) { int i, n; for (i=n=0; i < cols; i++) n += (*a++ == *b++); return n; } /* * Given a context, update the window. Out of paranoia, we don't * allow WM_PAINT responses to do scrolling optimisations. */ static void do_paint (Context ctx, int may_optimise) { int i, j, start, our_curs_y; unsigned long attr, rv, cursor; pos scrpos; char ch[1024]; long ticks; /* * Check the visual bell state. */ if (in_vbell) { ticks = GetTickCount(); if (ticks - vbell_timeout >= 0) in_vbell = FALSE; } /* Depends on: * screen array, disptop, scrtop, * selection, rv, * cfg.blinkpc, blink_is_real, tblinker, * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus */ if (cursor_on) { if (has_focus) { if (blinker || !cfg.blink_cur) cursor = ATTR_ACTCURS; else cursor = 0; } else cursor = ATTR_PASCURS; if (wrapnext) cursor |= ATTR_RIGHTCURS; } else cursor = 0; rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0); our_curs_y = curs.y - disptop; for (i=0; i450) { last_tblink = now; tblinker = !tblinker; } if (flg) { blinker = 1; last_blink = now; return; } blink_diff = now-last_blink; /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */ if (blink_diff>=0 && blink_diff<(long)GetCaretBlinkTime()) return; last_blink = now; blinker = !blinker; } /* * Invalidate the whole screen so it will be repainted in full. */ void term_invalidate(void) { int i; for (i=0; i 0 ? sbtop : disptop) + where; if (disptop < sbtop) disptop = sbtop; if (disptop > 0) disptop = 0; update_sbar(); term_update(); } static void clipme(pos top, pos bottom, char *workbuf) { char *wbptr; /* where next char goes within workbuf */ int wblen = 0; /* workbuf len */ int buflen; /* amount of memory allocated to workbuf */ if ( workbuf != NULL ) { /* user supplied buffer? */ buflen = -1; /* assume buffer passed in is big enough */ wbptr = workbuf; /* start filling here */ } else buflen = 0; /* No data is available yet */ while (poslt(top, bottom)) { int nl = FALSE; unsigned long *ldata = lineptr(top.y); pos lineend, nlpos; nlpos.y = top.y; nlpos.x = cols; if (!(ldata[cols] & ATTR_WRAPPED)) { while ((ldata[nlpos.x-1] & CHAR_MASK) == 0x20 && poslt(top, nlpos)) decpos(nlpos); if (poslt(nlpos, bottom)) nl = TRUE; } while (poslt(top, bottom) && poslt(top, nlpos)) { int ch = (ldata[top.x] & CHAR_MASK); int set = (ldata[top.x] & CSET_MASK); /* VT Specials -> ISO8859-1 for Cut&Paste */ static const unsigned char poorman2[] = "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 "; if (set && !cfg.rawcnp) { if (set == ATTR_LINEDRW && ch >= 0x60 && ch < 0x7F) { int x; if ((x = poorman2[2*(ch-0x60)+1]) == ' ') x = 0; ch = (x<<8) + poorman2[2*(ch-0x60)]; } } while(ch != 0) { if (cfg.rawcnp || !!(ch&0xE0)) { if ( wblen == buflen ) { workbuf = srealloc(workbuf, buflen += 100); wbptr = workbuf + wblen; } wblen++; *wbptr++ = (unsigned char) ch; } ch>>=8; } top.x++; } if (nl) { int i; for (i=0; i 0 ) /* indicates we allocated this buffer */ sfree(workbuf); } void term_copyall (void) { pos top; top.y = -count234(scrollback); top.x = 0; clipme(top, curs, NULL /* dynamic allocation */); } /* * Spread the selection outwards according to the selection mode. */ static pos sel_spread_half (pos p, int dir) { unsigned long *ldata; int x; short wvalue; ldata = lineptr(p.y); switch (selmode) { case SM_CHAR: /* * In this mode, every character is a separate unit, except * for runs of spaces at the end of a non-wrapping line. */ if (!(ldata[cols] & ATTR_WRAPPED)) { unsigned long *q = ldata+cols; while (q > ldata && (q[-1] & CHAR_MASK) == 0x20) q--; if (q == ldata+cols) q--; if (p.x >= q-ldata) p.x = (dir == -1 ? q-ldata : cols - 1); } break; case SM_WORD: /* * In this mode, the units are maximal runs of characters * whose `wordness' has the same value. */ wvalue = wordness[ldata[p.x] & CHAR_MASK]; if (dir == +1) { while (p.x < cols && wordness[ldata[p.x+1] & CHAR_MASK] == wvalue) p.x++; } else { while (p.x > 0 && wordness[ldata[p.x-1] & CHAR_MASK] == wvalue) p.x--; } break; case SM_LINE: /* * In this mode, every line is a unit. */ p.x = (dir == -1 ? 0 : cols - 1); break; } return p; } static void sel_spread (void) { selstart = sel_spread_half (selstart, -1); decpos(selend); selend = sel_spread_half (selend, +1); incpos(selend); } void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) { pos selpoint; unsigned long *ldata; if (y<0) y = 0; if (y>=rows) y = rows-1; if (x<0) { if (y > 0) { x = cols-1; y--; } else x = 0; } if (x>=cols) x = cols-1; selpoint.y = y + disptop; selpoint.x = x; ldata = lineptr(selpoint.y); if ((ldata[cols]&LATTR_MODE) != LATTR_NORM) selpoint.x /= 2; if (b == MB_SELECT && a == MA_CLICK) { deselect(); selstate = ABOUT_TO; selanchor = selpoint; selmode = SM_CHAR; } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) { deselect(); selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); selstate = DRAGGING; selstart = selanchor = selpoint; selend = selstart; incpos(selend); sel_spread(); } else if ((b == MB_SELECT && a == MA_DRAG) || (b == MB_EXTEND && a != MA_RELEASE)) { if (selstate == ABOUT_TO && poseq(selanchor, selpoint)) return; if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) { if (posdiff(selpoint,selstart) < posdiff(selend,selstart)/2) { selanchor = selend; decpos(selanchor); } else { selanchor = selstart; } selstate = DRAGGING; } if (selstate != ABOUT_TO && selstate != DRAGGING) selanchor = selpoint; selstate = DRAGGING; if (poslt(selpoint, selanchor)) { selstart = selpoint; selend = selanchor; incpos(selend); } else { selstart = selanchor; selend = selpoint; incpos(selpoint); } sel_spread(); } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) { if (selstate == DRAGGING) { /* * We've completed a selection. We now transfer the * data to the clipboard. */ clipme(selstart, selend, selspace); selstate = SELECTED; } else selstate = NO_SELECTION; } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) { char *data; int len; get_clip((void **) &data, &len); if (data) { char *p, *q; if (paste_buffer) sfree(paste_buffer); paste_pos = paste_hold = paste_len = 0; paste_buffer = smalloc(len); p = q = data; while (p < data+len) { while (p < data+len && !(p <= data+len-sizeof(sel_nl) && !memcmp(p, sel_nl, sizeof(sel_nl)))) p++; { int i; unsigned char c; for(i=0;i=0 && paste_diff<450) return; } paste_hold = 0; while(paste_pos= INBUF_SIZE) term_out(); inbuf[inbuf_head++] = *data++; } } /* * Log session traffic. */ void logtraffic(unsigned char c, int logmode) { if (cfg.logtype > 0) { if (cfg.logtype == logmode) { /* deferred open file from pgm start? */ if (!lgfp) logfopen(); if (lgfp) fputc (c, lgfp); } } } /* open log file append/overwrite mode */ void logfopen(void) { char buf[256]; time_t t; struct tm *tm; char writemod[4]; if (!cfg.logtype) return; sprintf (writemod, "wb"); /* default to rewrite */ lgfp = fopen(cfg.logfilename, "r"); /* file already present? */ if (lgfp) { int i; fclose(lgfp); i = askappend(cfg.logfilename); if (i == 1) writemod[0] = 'a'; /* set append mode */ else if (i == 0) { /* cancelled */ lgfp = NULL; cfg.logtype = 0; /* disable logging */ return; } } lgfp = fopen(cfg.logfilename, writemod); if (lgfp) { /* enter into event log */ sprintf(buf, "%s session log (%s mode) to file : ", (writemod[0] == 'a') ? "Appending" : "Writing new", (cfg.logtype == LGTYP_ASCII ? "ASCII" : cfg.logtype == LGTYP_DEBUG ? "raw" : "") ); /* Make sure we do not exceed the output buffer size */ strncat (buf, cfg.logfilename, 128); buf[strlen(buf)] = '\0'; logevent(buf); /* --- write header line iinto log file */ fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp); time(&t); tm = localtime(&t); strftime(buf, 24, "%Y.%m.%d %H:%M:%S", tm); fputs (buf, lgfp); fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp); } } void logfclose (void) { if (lgfp) { fclose(lgfp); lgfp = NULL; } }