[bug-inetutils] GNU inetutils-1.7 tftp not handle long file name bug

[王智通]

Hi, all:

 

In GNU inetutils-1.7/tftp/main.c:

 

char line[200];  // cmd line buffer only read 200 bytes, I think it’s too small, if a file name too long(like 256), the tftp client will display:

 

address@hidden tftp]# ls

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.c

 

tftp>put aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.c

No such file or directory

tftp> ?Invalid command

 

the command() function only handle 200 bytes buffer:

static void

command ()

{

  register struct cmd *c;

 

  for (;;)

    {

      printf ("%s> ", prompt);

      if (fgets (line, sizeof line, stdin) == 0)

         {

           if (feof (stdin))

             exit (0);

           else

             continue;

         }

}

 

I think it’s a little bug, maybe the line variable will has a big bufferJ

 

 

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