diff options
| -rw-r--r-- | lib/libc/sys/getpgrp.2 | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lib/libc/sys/getpgrp.2 b/lib/libc/sys/getpgrp.2 index 8e56708..11b0063 100644 --- a/lib/libc/sys/getpgrp.2 +++ b/lib/libc/sys/getpgrp.2 @@ -76,6 +76,23 @@ and .Fn tcsetpgrp calls are used to get/set the process group of the control terminal. +.Sh RETURN VALUES +The +.Fn getpgrp +call always succeeds. +Upon successful completion, the +.Fn getpgid +call returns the process group of the specified process; +otherwise, it returns a value of \-1 and sets +.Va errno +to indicate the error. +.Sh ERRORS +.Fn getpgid +will succeed unless: +.Bl -tag -width Er +.It Bq Er ESRCH +there is no process whose process ID equals fo +.Fa pid .Sh SEE ALSO .Xr getsid 2 , .Xr setpgid 2 , @@ -87,7 +104,7 @@ function call appeared in .Bx 4.0 . The .Fn getpgid -function call is derived from it's usage in System V Release 4. +function call is derived from its usage in System V Release 4. .Sh STANDARDS The .Fn getpgrp |
