tcsetpgrp(3C)						   Standard C Library Functions 					     tcsetpgrp(3C)

NAME

       tcsetpgrp - set foreground process group ID

SYNOPSIS

       #include <sys/types.h>
       #include <unistd.h>

       int tcsetpgrp(int fildes, pid_t pgid_id);

DESCRIPTION

       If  the	process  has a controlling terminal, tcsetpgrp() will set the foreground process group ID associated with the terminal to pgid_id.
       The file associated with fildes must be the controlling terminal of the calling process and the	controlling  terminal  must  be  currently
       associated  with the session of the calling process. The value of pgid_id must match a process group ID of a process in the same session as
       the calling process.

RETURN VALUES

       Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The tcsetpgrp() function will fail if:

       EBADF	       The fildes argument is not a valid file descriptor.

       EINVAL	       This implementation does not support the value in the pgid_id argument.

       ENOTTY	       The calling process does not have a controlling terminal, or the file is not the controlling terminal, or  the  controlling
		       terminal is no longer associated with the session of the calling process.

       EIO	       The process is not ignoring or holding SIGTTOU and is a member of an orphaned process group.

       EPERM	       The value of pgid_id does not match the process group ID of a process in the same session as the calling process.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-------------------------------+
       |      ATTRIBUTE TYPE	     |	     ATTRIBUTE VALUE	     |
       +-----------------------------+-------------------------------+
       |Interface Stability	     |Standard			     |
       +-----------------------------+-------------------------------+
       |MT-Level		     |MT-Safe, and Async-Signal-Safe |
       +-----------------------------+-------------------------------+

SEE ALSO

       tcgetpgrp(3C), attributes(5), standards(5), termio(7I)

SunOS 5.10							    14 Aug 2002 						     tcsetpgrp(3C)