git.distorted.org.uk Git - u/mdw/putty/blob - unix/pty.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "putty.h"
   5
   6 #ifndef FALSE
   7 #define FALSE 0
   8 #endif
   9 #ifndef TRUE
  10 #define TRUE 1
  11 #endif
  12
  13 static void pty_size(void);
  14
  15 static void c_write(char *buf, int len)
  16 {
  17     from_backend(0, buf, len);
  18 }
  19
  20 /*
  21  * Called to set up the pty.
  22  *
  23  * Returns an error message, or NULL on success.
  24  *
  25  * Also places the canonical host name into `realhost'. It must be
  26  * freed by the caller.
  27  */
  28 static char *pty_init(char *host, int port, char **realhost, int nodelay)
  29 {
  30     /* FIXME: do nothing for now */
  31     return NULL;
  32 }
  33
  34 /*
  35  * Called to send data down the pty.
  36  */
  37 static int pty_send(char *buf, int len)
  38 {
  39     c_write(buf, len);                 /* FIXME: diagnostic thingy */
  40     return 0;
  41 }
  42
  43 /*
  44  * Called to query the current socket sendability status.
  45  */
  46 static int pty_sendbuffer(void)
  47 {
  48     return 0;
  49 }
  50
  51 /*
  52  * Called to set the size of the window
  53  */
  54 static void pty_size(void)
  55 {
  56     /* FIXME: will need to do TIOCSWINSZ or whatever. */
  57     return;
  58 }
  59
  60 /*
  61  * Send special codes.
  62  */
  63 static void pty_special(Telnet_Special code)
  64 {
  65     /* Do nothing! */
  66     return;
  67 }
  68
  69 static Socket pty_socket(void)
  70 {
  71     return NULL;                       /* shouldn't ever be needed */
  72 }
  73
  74 static int pty_sendok(void)
  75 {
  76     return 1;
  77 }
  78
  79 static void pty_unthrottle(int backlog)
  80 {
  81     /* do nothing */
  82 }
  83
  84 static int pty_ldisc(int option)
  85 {
  86     return 0;                          /* neither editing nor echoing */
  87 }
  88
  89 static int pty_exitcode(void)
  90 {
  91     /* Shouldn't ever be required */
  92     return 0;
  93 }
  94
  95 Backend pty_backend = {
  96     pty_init,
  97     pty_send,
  98     pty_sendbuffer,
  99     pty_size,
 100     pty_special,
 101     pty_socket,
 102     pty_exitcode,
 103     pty_sendok,
 104     pty_ldisc,
 105     pty_unthrottle,
 106     1
 107 };