tcgetpgrp(3c) [sunos man page]
tcgetpgrp(3C) Standard C Library Functions tcgetpgrp(3C) NAME
tcgetpgrp - get foreground process group ID SYNOPSIS
#include <sys/types.h> #include <unistd.h> pid_t tcgetpgrp(int fildes); DESCRIPTION
The tcgetpgrp() function will return the value of the process group ID of the foreground process group associated with the terminal. If there is no foreground process group, tcgetpgrp() returns a value greater than 1 that does not match the process group ID of any exist- ing process group. The tcgetpgrp() function is allowed from a process that is a member of a background process group; however, the information may be subse- quently changed by a process that is a member of a foreground process group. RETURN VALUES
Upon successful completion, tcgetpgrp() returns the value of the process group ID of the foreground process associated with the terminal. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS
The tcgetpgrp() function will fail if: EBADF The fildes argument is not a valid file descriptor. ENOTTY The calling process does not have a controlling terminal, or the file is not the controlling terminal. 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
setpgid(2), setsid(2), tcsetpgrp(3C), attributes(5), standards(5), termio(7I) SunOS 5.10 14 Aug 2002 tcgetpgrp(3C)
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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)