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)