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28 .\" @(#)setpgid.2 8.1 (Berkeley) 6/4/93
29 .\" $FreeBSD: src/lib/libc/sys/setpgid.2,v 1.5.2.7 2001/12/14 18:34:01 ru Exp $
30 .\" $DragonFly: src/lib/libc/sys/setpgid.2,v 1.4 2007/09/05 08:23:43 hasso Exp $
44 .Fn setpgid "pid_t pid" "pid_t pgrp"
46 .Fn setpgrp "pid_t pid" "pid_t pgrp"
49 sets the process group of the specified process
55 is zero, then the call applies to the current process.
58 is zero, then the process id of the process specified by
62 If the invoker is not the super-user, then the affected process
63 must have the same effective user-id as the invoker or be a descendant
64 of the invoking process.
71 and is retained for calling convention compatibility with historical
76 will fail and the process group will not be altered if:
81 argument matches the process ID of a child process of the calling
82 process, and the child process has successfully executed one of the
88 is not legal (less than zero).
90 The effective user ID of the requested process is different
91 from that of the caller and the process is not a descendant
92 of the calling process.
96 argument does not match the process ID of the calling process
97 or of a child process of the calling process.
104 function call is expected to conform to