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PickBASIC / FlashBASIC

%ttyname() function

.md

The %ttyname() function returns a pointer to a static area containing the null terminated path name of the terminal device associated to the file descriptor fd.

For Windows: Not Supported

Syntax

ptr = (char*)%ttyname(fd)

Description

If fd does not describe a device in the /dev directory, a null pointer is returned.

When run on a phantom process, this function returns a null pointer.

Note: The return value points to static data which is overwritten by each call. The name must be copied, as in the example, to a D3 variable. When run on a phantom process, a null is returned.

Example(s)

char buffer[32]
* Get the device name associated to our standard input
ptr=(char*)%ttyname(0)
if ptr=0 then
   * This is not a terminal (pipe?)
   return
end
* Copy the data from the static string to Pick
char buffer[32]
%strcpy(buffer, (char*)ptr)
mytty=field(buffer, char(0), 1)

See also

%close() function→%ioctl() function→%open() function→%read() function→%write() function→FlashBASIC C functions overview→