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https://git.tartarus.org/simon/putty.git
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b4c8fd9d86
This is a new vtable-based abstraction which is passed to a backend in place of Frontend, and it implements only the subset of the Frontend functions needed by a backend. (Many other Frontend functions still exist, notably the wide range of things called by terminal.c providing platform-independent operations on the GUI terminal window.) The purpose of making it a vtable is that this opens up the possibility of creating a backend as an internal implementation detail of some other activity, by providing just that one backend with a custom Seat that implements the methods differently. For example, this refactoring should make it feasible to directly implement an SSH proxy type, aka the 'jump host' feature supported by OpenSSH, aka 'open a secondary SSH session in MAINCHAN_DIRECT_TCP mode, and then expose the main channel of that as the Socket for the primary connection'. (Which of course you can already do by spawning 'plink -nc' as a separate proxy process, but this would permit it in the _same_ process without anything getting confused.) I've centralised a full set of stub methods in misc.c for the new abstraction, which allows me to get rid of several annoying stubs in the previous code. Also, while I'm here, I've moved a lot of duplicated modalfatalbox() type functions from application main program files into wincons.c / uxcons.c, which I think saves duplication overall. (A minor visible effect is that the prefixes on those console-based fatal error messages will now be more consistent between applications.)
178 lines
6.1 KiB
C
178 lines
6.1 KiB
C
#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#define PUTTY_DO_GLOBALS
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#include "putty.h"
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#include "terminal.h"
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/* For Unix in particular, but harmless if this main() is reused elsewhere */
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const int buildinfo_gtk_relevant = FALSE;
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int main(int argc, char **argv)
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{
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char blk[512];
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size_t len;
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Terminal *term;
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Conf *conf;
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struct unicode_data ucsdata;
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conf = conf_new();
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do_defaults(NULL, conf);
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init_ucs(&ucsdata, conf_get_str(conf, CONF_line_codepage),
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conf_get_int(conf, CONF_utf8_override),
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CS_NONE, conf_get_int(conf, CONF_vtmode));
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term = term_init(conf, &ucsdata, NULL);
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term_size(term, 24, 80, 10000);
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term->ldisc = NULL;
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/* Tell american fuzzy lop that this is a good place to fork. */
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#ifdef __AFL_HAVE_MANUAL_CONTROL
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__AFL_INIT();
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#endif
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while (!feof(stdin)) {
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len = fread(blk, 1, sizeof(blk), stdin);
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term_data(term, 0, blk, len);
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}
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term_update(term);
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return 0;
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}
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/* functions required by terminal.c */
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void request_resize(Frontend *frontend, int x, int y) { }
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void do_text(Context ctx, int x, int y, wchar_t * text, int len,
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unsigned long attr, int lattr, truecolour tc)
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{
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int i;
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printf("TEXT[attr=%08lx,lattr=%02x]@(%d,%d):", attr, lattr, x, y);
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for (i = 0; i < len; i++) {
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printf(" %x", (unsigned)text[i]);
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}
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printf("\n");
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}
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void do_cursor(Context ctx, int x, int y, wchar_t * text, int len,
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unsigned long attr, int lattr, truecolour tc)
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{
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int i;
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printf("CURS[attr=%08lx,lattr=%02x]@(%d,%d):", attr, lattr, x, y);
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for (i = 0; i < len; i++) {
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printf(" %x", (unsigned)text[i]);
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}
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printf("\n");
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}
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int char_width(Context ctx, int uc) { return 1; }
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void set_title(Frontend *frontend, char *t) { }
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void set_icon(Frontend *frontend, char *t) { }
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void set_sbar(Frontend *frontend, int a, int b, int c) { }
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void ldisc_send(Ldisc *ldisc, const void *buf, int len, int interactive) {}
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void ldisc_echoedit_update(Ldisc *ldisc) {}
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Context get_ctx(Frontend *frontend) { return NULL; }
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void free_ctx(Context ctx) { }
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void palette_set(Frontend *frontend, int a, int b, int c, int d) { }
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void palette_reset(Frontend *frontend) { }
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int palette_get(Frontend *frontend, int n, int *r, int *g, int *b) {return FALSE;}
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void write_clip(Frontend *frontend, int clipboard,
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wchar_t *a, int *b, truecolour *c, int d, int e) { }
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void set_raw_mouse_mode(Frontend *frontend, int m) { }
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void frontend_request_paste(Frontend *frontend, int clipboard) { }
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void do_beep(Frontend *frontend, int a) { }
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void sys_cursor(Frontend *frontend, int x, int y) { }
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void modalfatalbox(const char *fmt, ...) { exit(0); }
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void nonfatal(const char *fmt, ...) { }
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void set_iconic(Frontend *frontend, int iconic) { }
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void move_window(Frontend *frontend, int x, int y) { }
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void set_zorder(Frontend *frontend, int top) { }
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void refresh_window(Frontend *frontend) { }
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void set_zoomed(Frontend *frontend, int zoomed) { }
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int is_iconic(Frontend *frontend) { return 0; }
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void get_window_pos(Frontend *frontend, int *x, int *y) { *x = 0; *y = 0; }
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void get_window_pixels(Frontend *frontend, int *x, int *y) { *x = 0; *y = 0; }
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char *get_window_title(Frontend *frontend, int icon) { return "moo"; }
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int frontend_is_utf8(Frontend *frontend) { return TRUE; }
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/* needed by timing.c */
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void timer_change_notify(unsigned long next) { }
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/* needed by config.c and sercfg.c */
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void dlg_radiobutton_set(union control *ctrl, void *dlg, int whichbutton) { }
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int dlg_radiobutton_get(union control *ctrl, void *dlg) { return 0; }
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void dlg_checkbox_set(union control *ctrl, void *dlg, int checked) { }
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int dlg_checkbox_get(union control *ctrl, void *dlg) { return 0; }
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void dlg_editbox_set(union control *ctrl, void *dlg, char const *text) { }
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char *dlg_editbox_get(union control *ctrl, void *dlg) { return dupstr("moo"); }
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void dlg_listbox_clear(union control *ctrl, void *dlg) { }
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void dlg_listbox_del(union control *ctrl, void *dlg, int index) { }
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void dlg_listbox_add(union control *ctrl, void *dlg, char const *text) { }
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void dlg_listbox_addwithid(union control *ctrl, void *dlg,
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char const *text, int id) { }
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int dlg_listbox_getid(union control *ctrl, void *dlg, int index) { return 0; }
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int dlg_listbox_index(union control *ctrl, void *dlg) { return -1; }
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int dlg_listbox_issel(union control *ctrl, void *dlg, int index) { return 0; }
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void dlg_listbox_select(union control *ctrl, void *dlg, int index) { }
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void dlg_text_set(union control *ctrl, void *dlg, char const *text) { }
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void dlg_filesel_set(union control *ctrl, void *dlg, Filename *fn) { }
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Filename *dlg_filesel_get(union control *ctrl, void *dlg) { return NULL; }
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void dlg_fontsel_set(union control *ctrl, void *dlg, FontSpec *fn) { }
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FontSpec *dlg_fontsel_get(union control *ctrl, void *dlg) { return NULL; }
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void dlg_update_start(union control *ctrl, void *dlg) { }
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void dlg_update_done(union control *ctrl, void *dlg) { }
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void dlg_set_focus(union control *ctrl, void *dlg) { }
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void dlg_label_change(union control *ctrl, void *dlg, char const *text) { }
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union control *dlg_last_focused(union control *ctrl, void *dlg) { return NULL; }
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void dlg_beep(void *dlg) { }
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void dlg_error_msg(void *dlg, const char *msg) { }
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void dlg_end(void *dlg, int value) { }
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void dlg_coloursel_start(union control *ctrl, void *dlg,
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int r, int g, int b) { }
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int dlg_coloursel_results(union control *ctrl, void *dlg,
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int *r, int *g, int *b) { return 0; }
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void dlg_refresh(union control *ctrl, void *dlg) { }
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const char *const appname = "FuZZterm";
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const int ngsslibs = 0;
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const char *const gsslibnames[0] = { };
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const struct keyvalwhere gsslibkeywords[0] = { };
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/*
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* Default settings that are specific to Unix plink.
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*/
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char *platform_default_s(const char *name)
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{
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if (!strcmp(name, "TermType"))
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return dupstr(getenv("TERM"));
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if (!strcmp(name, "SerialLine"))
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return dupstr("/dev/ttyS0");
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return NULL;
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}
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int platform_default_i(const char *name, int def)
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{
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return def;
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}
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FontSpec *platform_default_fontspec(const char *name)
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{
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return fontspec_new("");
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}
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Filename *platform_default_filename(const char *name)
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{
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if (!strcmp(name, "LogFileName"))
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return filename_from_str("putty.log");
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else
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return filename_from_str("");
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}
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char *x_get_default(const char *key)
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{
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return NULL; /* this is a stub */
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}
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