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