mdw@git.distorted.org.uk Git - sgt/putty/blob - unix/uxputty.c

   1 /*
   2  * Unix PuTTY main program.
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <assert.h>
   8 #include <unistd.h>
   9
  10 #include "putty.h"
  11 #include "storage.h"
  12
  13 /*
  14  * TODO:
  15  *
  16  *  - Arrange for the window title not to be `pterm'.
  17  *
  18  *  - Fix command-line parsing to be more PuTTYlike and not so
  19  *    ptermy - in particular non-option arguments should be
  20  *    hostname and port in the obvious way.
  21  *
  22  *  - Session loading and saving; current thinking says the best
  23  *    way is to have a subdir .putty/sessions containing files
  24  *    whose names are actually munged saved session names.
  25  *
  26  *  - libcharset enumeration.
  27  *
  28  *  - fix the printer enum (I think the sensible thing is simply to
  29  *    have uxcfg.c remove the drop-down list completely, since you
  30  *    can't sensibly provide an enumerated list of lpr commands!).
  31  *
  32  *  - Ctrl+right-click for a context menu (also in Windows for
  33  *    consistency, I think). This should contain pretty much
  34  *    everything in the Windows PuTTY menu, and a subset of that in
  35  *    pterm:
  36  *
  37  *     - Telnet special commands (not in pterm :-)
  38  *
  39  *     - Event Log (this means we must implement the Event Log; not
  40  *       in pterm)
  41  *
  42  *     - New Session and Duplicate Session (perhaps in pterm, in fact?!)
  43  *        + Duplicate Session will be fun, since we must work out
  44  *          how to pass the config data through.
  45  *        + In fact this should be easier on Unix, since fork() is
  46  *          available so we need not even exec (this also saves us
  47  *          the trouble of scrabbling around trying to find our own
  48  *          binary). Possible scenario: respond to Duplicate
  49  *          Session by forking. Parent continues as before; child
  50  *          unceremoniously frees all extant resources (backend,
  51  *          terminal, ldisc, frontend etc) and then _longjmps_ (I
  52  *          kid you not) back to a point in pt_main() which causes
  53  *          it to go back round to the point of opening a new
  54  *          terminal window and a new backend.
  55  *        + A tricky bit here is how to free everything without
  56  *          also _destroying_ things - calling GTK to free up
  57  *          existing widgets is liable to send destroy messages to
  58  *          the X server, which won't go down too well with the
  59  *          parent process. exec() is a much cleaner solution to
  60  *          this bit, but requires us to invent some ghastly IPC as
  61  *          we did in Windows PuTTY.
  62  *        + Arrgh! Also, this won't work in pterm since we'll
  63  *          already have dropped privileges by this point, so we
  64  *          can't get another pty. Sigh. Looks like exec has to be
  65  *          the way forward then :-/
  66  *
  67  *     - Saved Sessions submenu (not in pterm of course)
  68  *
  69  *     - Change Settings
  70  *        + we must also implement mid-session reconfig in pterm.c.
  71  *        + note this also requires config.c and uxcfg.c to be able
  72  *          to get hold of the application name.
  73  *
  74  *     - Copy All to Clipboard (for what that's worth)
  75  *
  76  *     - Clear Scrollback and Reset Terminal
  77  *
  78  *     - About (and uxcfg.c must also supply the about box)
  79  */
  80
  81 void cmdline_error(char *p, ...)
  82 {
  83     va_list ap;
  84     fprintf(stderr, "plink: ");
  85     va_start(ap, p);
  86     vfprintf(stderr, p, ap);
  87     va_end(ap);
  88     fputc('\n', stderr);
  89     exit(1);
  90 }
  91
  92 /*
  93  * Clean up and exit.
  94  */
  95 void cleanup_exit(int code)
  96 {
  97     /*
  98      * Clean up.
  99      */
 100     sk_cleanup();
 101     random_save_seed();
 102     exit(code);
 103 }
 104
 105 /*
 106  * Another bunch of temporary stub functions. These ones will want
 107  * removing by means of implementing them properly: libcharset
 108  * should invent its own sensible format for codepage names and a
 109  * means of enumerating them, and printer_enum needs to be dealt
 110  * with somehow or other too.
 111  */
 112
 113 char *cp_name(int codepage)
 114 {
 115     return "";
 116 }
 117 char *cp_enumerate(int index)
 118 {
 119     return NULL;
 120 }
 121 int decode_codepage(char *cp_name)
 122 {
 123     return -2;
 124 }
 125
 126 printer_enum *printer_start_enum(int *nprinters_ptr) {
 127     *nprinters_ptr = 0;
 128     return NULL;
 129 }
 130 char *printer_get_name(printer_enum *pe, int i) { return NULL;
 131 }
 132 void printer_finish_enum(printer_enum *pe) { }
 133
 134 Backend *select_backend(Config *cfg)
 135 {
 136     int i;
 137     Backend *back = NULL;
 138     for (i = 0; backends[i].backend != NULL; i++)
 139         if (backends[i].protocol == cfg->protocol) {
 140             back = backends[i].backend;
 141             break;
 142         }
 143     assert(back != NULL);
 144     return back;
 145 }
 146
 147 int cfgbox(Config *cfg)
 148 {
 149     extern int do_config_box(const char *title, Config *cfg);
 150     return do_config_box("PuTTY Configuration", cfg);
 151 }
 152
 153 int main(int argc, char **argv)
 154 {
 155     extern int pt_main(int argc, char **argv);
 156     sk_init();
 157     flags = FLAG_VERBOSE | FLAG_INTERACTIVE;
 158     default_protocol = be_default_protocol;
 159     /* Find the appropriate default port. */
 160     {
 161         int i;
 162         default_port = 0; /* illegal */
 163         for (i = 0; backends[i].backend != NULL; i++)
 164             if (backends[i].protocol == default_protocol) {
 165                 default_port = backends[i].backend->default_port;
 166                 break;
 167             }
 168     }
 169     return pt_main(argc, argv);
 170 }