tftpmenu.c

在ARM7和UC/OSII的平台上实现了GPS自动报站的功能,涉及GPS模块LEA_4S的驱动,位置速寻算法,语音芯片ISD4004的录放音驱动,LED页面管理等等.从启动代码到操作系统的移植以及到业

/* tftpmenu.c

   Copyright 1998 by InterNiche Technologies Inc.

   menu hooks for TFTP 

1/1/98 - Created. John Bartas
*/

#include "tftpport.h"   /* TCP/IP, sockets, system info */
#include "tftp.h"

#include "q.h"
#include "netbuf.h"
#include "net.h"
#include "ip.h"


#include "menu.h"

int   tftp_srv     (void * pio);
int   tftp_get     (void * pio);
int   tftp_put     (void * pio);
int   tftp_state   (void * pio);

struct menu_op tftpmenu[] = {
#ifdef TFTP_CLIENT
   "tftpc",    stooges,     "tftp client menu",
   "tfget",    tftp_get,     "tftp GET a file",
   "tfput",    tftp_put,     "tftp PUT a file",
#endif /* TFTP_CLIENT */

#ifdef TFTP_SERVER
#if defined(TFTP_SERVER) && !defined(TFTP_CLIENT)
   "tftps",    stooges,      "tftp server menu",
   "tfsrv",    tftp_srv,     "Toggle tftp server on/off",
#else
   "tfsrv",    tftp_srv,     "Toggle tftp server on/off",
#endif
#endif /* TFTP_SERVER */

#ifdef NET_STATS
   "tfstate",  tftp_state,  "Display tftp stats",
#endif
   NULL,
};

extern char * prompt;   /* system menu prompt */

#ifdef TFTP_SERVER
extern int tftp_server_on;
#endif /* TFTP_SERVER */

/* internal routines */
int   tftpio(int direction, void * pio);
int   tfc_done(int status, struct tfconn * cn, char * msg);

void * last_pio;  /* lame attempt at supporting pio */

#ifdef TFTP_SERVER
int
tftp_srv(void * pio)
{
   if(tftp_server_on == TRUE)
      tfs_off();
   else
      tfs_on();
   ns_printf(pio, "tftp server %s\n", tftp_server_on==TRUE?"ON":"OFF");
   return 0;
}
#endif /* TFTP_SERVER */

int
tftp_get(void * pio)
{
   return tftpio(GET, pio);
}

int
tftp_put(void * pio)
{
   return tftpio(PUT, pio);
}

static char * usage = "usage: tf%s host sourcefile [destfile]\n";

int 
tftpio(int dir, void * pio)
{
ip_addr fhost;
char * dfile;  /* source & dest file names */
char * sfile;
char * hostname=NULL;
char * msg;
int   e;

GEN_IO io= (GEN_IO)pio;

   /* extract args from command buffer */
   if ( io != NULL )
      hostname = nextarg(io->inbuf);
   if(hostname == NULL || *hostname == 0)
   {
      ns_printf(pio, usage, dir==PUT?"put":"get");
      return -1;
   }
   sfile = nextarg(hostname);
   *(sfile-1) = 0; /* null terminate hostname */
   if(*sfile == 0)
   {
      ns_printf(pio, usage, dir==PUT?"put":"get");
      return -1;
   }
   dfile = nextarg(sfile);
   if(*dfile != 0)  /* if dfile was specified... */
      *(dfile-1) = 0; /* ...null terminate sfile */
   else              /* if not specified default to sfile */
      dfile = sfile;

   msg = parse_ipad(&fhost, (unsigned *)&e, hostname);
   if(msg)
   {
      ns_printf(pio,"TFTP host address error: %s\n", msg);
      return -1;
   }
   /* if we're gettingthe file, swap src,dest file names */
   if(dir == GET)
   {
      msg = sfile;
      sfile = dfile;
      dfile = msg;
   }

   last_pio = pio;   /* save pio for callback */

   /* call tftp client code to create the session and start the transfer */
#ifdef TFTP_CLIENT
   msg = tftpuse(fhost, sfile, dfile, dir, OCTET, tfc_done);
#endif
   if(msg)
      ns_printf(pio, "TFTP client error: %s\n", msg);

   return 0;
}

int
tftp_state(void * pio)
{
struct tfconn * cn;
int nconns = 0;

#ifdef TFTP_SERVER
   ns_printf(pio, "tftp server state %s\n", tftp_server_on?"ON":"OFF");
#endif /* TFTP_SERVER */

   for(cn = tftp_conns; cn; cn = cn->next)
   {
      ns_printf(pio, "connection: %s %u.%u.%u.%u, state:%d, bytes moved: %ld \n",
         cn->tf_dir==PUT?"put to":"get from", 
         PUSH_IPADDR(cn->tf_fhost), cn->tf_state, cn->tf_size);
      nconns++;
   }
   ns_printf(pio, "%d connections open\n", nconns);

   return 0;
}

/* tfc_done() - client's status callback */

int
tfc_done(int status, struct tfconn * cn, char * msg)
{
ip_addr fhost = cn->tf_fhost;
unsigned dir = cn->tf_dir;

   ns_printf(last_pio, "tftp %s %u.%u.%u.%u done; ",
      dir==PUT?"to":"from", 
      PUSH_IPADDR(fhost));

   ns_printf(last_pio, "msg: %s, status:%s(%d)\n",
      msg?msg:"None", status==0?"ok":"error", status );

   last_pio = NULL;  /* clear this - default back to console */
   return 0;
}