tcsetpgrp(3) [mojave man page]

TCSETPGRP(3)						   BSD Library Functions Manual 					      TCSETPGRP(3)

NAME

     tcsetpgrp -- set foreground process group ID

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     int
     tcsetpgrp(int fildes, pid_t pgid_id);

DESCRIPTION

     If the process has a controlling terminal, the tcsetpgrp() function sets the foreground process group ID associated with the terminal device
     to pgid_id.  The terminal device 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 be the same as the process group ID of a
     process in the same session as the calling process.

RETURN VALUES

     The tcsetpgrp() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi-
     cate the error.

ERRORS

     The tcsetpgrp() function will fail if:

     [EBADF]		The fildes argument is not a valid file descriptor.

     [EINVAL]		An invalid value of pgid_id was specified.

     [ENOTTY]		The calling process does not have a controlling terminal, or the file represented by fildes is not the controlling termi-
			nal, or the controlling terminal is no longer associated with the session of the calling process.

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

LEGACY SYNOPSIS

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

     The include file <sys/types.h> is necessary.

SEE ALSO

     setpgid(2), setsid(2), tcgetpgrp(3), compat(5)

STANDARDS

     The tcsetpgrp() function is expected to be compliant with the IEEE Std 1003.1-1988 (``POSIX.1'') specification.

BSD
								   June 4, 1993 							       BSD

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)