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TCGETPGRP(3)	       FreeBSD Library Functions Manual		  TCGETPGRP(3)

NAME
     tcgetpgrp -- get foreground process group ID

LIBRARY
     Standard C	Library	(libc, -lc)

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

     pid_t
     tcgetpgrp(int fd);

DESCRIPTION
     The tcgetpgrp() function returns the value	of the process group ID	of the
     foreground	process	group associated with the terminal device.  If there
     is	no foreground process group, tcgetpgrp() returns an invalid process
     ID.

ERRORS
     If	an error occurs, tcgetpgrp() returns -1	and the	global variable	errno
     is	set to indicate	the error, as follows:

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

     [ENOTTY]		The calling process does not have a controlling	termi-
			nal or the underlying terminal device represented by
			fd is not the controlling terminal.

SEE ALSO
     setpgid(2), setsid(2), tcsetpgrp(3)

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

FreeBSD	9.3			 June 4, 1993			   FreeBSD 9.3

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | STANDARDS

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