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setpgid(2) [opensolaris man page]

setpgid(2)							   System Calls 							setpgid(2)

NAME
setpgid - set process group ID SYNOPSIS
#include <sys/types.h> #include <unistd.h> int setpgid(pid_t pid, pid_t pgid); DESCRIPTION
The setpgid() function sets the process group ID of the process with ID pid to pgid. If pgid is equal to pid, the process becomes a process group leader. See Intro(2) for more information on session leaders and process group leaders. If pgid is not equal to pid, the process becomes a member of an existing process group. If pid is equal to 0, the process ID of the calling process is used. If pgid is equal to 0, the process specified by pid becomes a process group leader. RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS
The setpgid() function will fail if: EACCES The pid argument matches the process ID of a child process of the calling process and the child process has successfully executed one of the exec family of functions (see exec(2)). EINVAL The pgid argument is less than (pid_t) 0 or greater than or equal to PID_MAX, or the calling process has a controlling terminal that does not support job control. EPERM The process indicated by the pid argument is a session leader. EPERM The pid argument matches the process ID of a child process of the calling process and the child process is not in the same ses- sion as the calling process. EPERM The pgid argument does not match the process ID of the process indicated by the pid argument, and there is no process with a process group ID that matches pgid in the same session as the calling process. ESRCH The pid argument does not match the process ID of the calling process or of a child process of the calling process. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+ SEE ALSO
Intro(2), exec(2), exit(2), fork(2), getpid(2), getsid(2), attributes(5), standards(5) SunOS 5.11 28 Dec 1996 setpgid(2)

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setpgid(2)							System Calls Manual							setpgid(2)

NAME
setpgid(), setpgrp2() - set process group ID for job control SYNOPSIS
DESCRIPTION
The and system calls cause the process specified by pid to join an existing process group or create a new process group within the session of the calling process. The process group ID of the process whose process ID is pid is set to pgid. If pid is zero, the process ID of the calling process is used. If pgid is zero, the process ID of the indicated process is used. The process group ID of a session leader does not change. is provided for backward compatibility only. Security Restrictions Some or all of the actions associated with this system call are subject to compartmental restrictions. See compartments(5) for more information about compartmentalization on systems that support that feature. Compartmental restrictions can be overridden if the process possesses the privilege (COMMALLOWED). Processes owned by the superuser may not have this privilege. Pro- cesses owned by any user may have this privilege, depending on system configuration. See privileges(5) for more information about privileged access on systems that support fine-grained privileges. RETURN VALUE
and return the following values: Successful completion. Failure. is set to indicate the error. ERRORS
If or fails, is set to one of the following values. The value of pid matches the process ID of a child process of the calling process and the child process has successfully executed one of the exec(2) functions. The value of pgid is less than zero or is outside the range of valid process group ID values. The process indicated by pid is a session leader. The value of pid is valid but matches the process ID of a child process of the calling process, and the child process is not in the same session as the calling process. The value of pgid does not match the process ID of the process indicated by pid and there is no process with a process group ID that matches the value of pgid in the same session as the calling process. The value of pid does not match the process ID of the calling process or of a child process of the calling process. AUTHOR
and were developed by HP and the University of California, Berkeley. SEE ALSO
bsdproc(3C), exec(2), exit(2), fork(2), getpid(2), kill(2), setsid(2), signal(2), privileges(5), termio(7). STANDARDS CONFORMANCE
setpgid(2)
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