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Diffstat (limited to 'usr/src/man/man3proc/pr_getrlimit.3proc')
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diff --git a/usr/src/man/man3proc/pr_getrlimit.3proc b/usr/src/man/man3proc/pr_getrlimit.3proc new file mode 100644 index 0000000000..c1f17bfa8a --- /dev/null +++ b/usr/src/man/man3proc/pr_getrlimit.3proc @@ -0,0 +1,120 @@ +.\" +.\" This file and its contents are supplied under the terms of the +.\" Common Development and Distribution License ("CDDL"), version 1.0. +.\" You may only use this file in accordance with the terms of version +.\" 1.0 of the CDDL. +.\" +.\" A full copy of the text of the CDDL should have accompanied this +.\" source. A copy of the CDDL is also available via the Internet at +.\" http://www.illumos.org/license/CDDL. +.\" +.\" +.\" Copyright 2015 Joyent, Inc. +.\" +.Dd May 11, 2016 +.Dt PR_GETRLIMIT 3PROC +.Os +.Sh NAME +.Nm pr_getrlimit , +.Nm pr_getrlimit64 +.Nd inject getrlimit system call into victim process +.Sh SYNOPSIS +.Lb libproc +.In libproc.h +.Ft int +.Fo pr_getrlimit +.Fa "struct ps_prochandle *P" +.Fa "int resource" +.Fa "struct rlimit *rlp" +.Fc +.Ft int +.Fo pr_getrlimit64 +.Fa "struct ps_prochandle *P" +.Fa "int resource" +.Fa "struct rlimit64 *rlp" +.Fc +.Sh DESCRIPTION +The +.Fn pr_getrlimit +function injects the +.Xr getrlimit 2 +system call into the target process +.Fa P +by means of the agent LWP. +If the process handle +.Fa P +is the value +.Dv NULL +then this will be equivalent to calling +.Xr getrlimit 2 +on the currently running process. +.Pp +The arguments +.Fa resource +and +.Fa rlp +have the same meaning as in +.Xr getrlimit 2 . +See +.Xr getrlimit 2 +for the full description and purpose of the +.Sy getrlimit +system call and its arguments. +.Pp +The +.Fn pr_getrlimit +function only works on active processes. Process handles that correspond +to core files, zombie processes, or ELF objects do not support system +call injection. +.Pp +The +.Fn pr_getrlimit64 +function is equivalent to +.Fn pr_getrlimit ; +however, rather than having the rlimit information be subject to the +data model of the target process, they always provide 64-bit rlimit +information. See +.Xr lf64 5 +for more information. +.Sh RETURN VALUES +Upon successful completion, the +.Fn pr_getrlimit +function's return value is that described in +.Xr getrlimit 2 . +Otherwise, +.Sy -1 +is returned and +.Sy errno +is set to +.Er ENOSYS +to indicate that the system call could not be injected. +.Sh ERRORS +For the full list of errors see the +.Sy ERRORS +section in +.Xr getrlimit 2 . +.Pp +The +.Fn pr_getrlimit +function will fail if: +.Bl -tag -width Er +.It Er ENOSYS +An error occurred while trying to invoke the agent LWP and inject a +system call in the process handle +.Fa P +or the process handle +.Fa P +does not support system call injection. +.El +.Sh INTERFACE STABILITY +.Sy Uncommitted +.Sh MT-LEVEL +See +.Sy LOCKING +in +.Xr libproc 3LIB . +.Sh SEE ALSO +.Xr getrlimit 2 , +.Xr libproc 3LIB , +.Xr proc 4 , +.Xr lf64 5 |