xref: /freebsd/sys/fs/procfs/procfs_rlimit.c (revision 70fe064ad7cab6c0444b91622f60ec6a462f308a)
1 /*
2  * Copyright (c) 1999 Adrian Chadd
3  * Copyright (c) 1993
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * This code is derived from software contributed to Berkeley by
7  * Jan-Simon Pendry.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed by the University of
20  *	California, Berkeley and its contributors.
21  * 4. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)procfs_status.c	8.4 (Berkeley) 6/15/94
38  *
39  * $FreeBSD$
40  */
41 
42 /*
43  * To get resource.h to include our rlimit_ident[] array of rlimit identifiers
44  */
45 
46 #define _RLIMIT_IDENT
47 
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/proc.h>
51 #include <sys/resourcevar.h>
52 #include <sys/resource.h>
53 #include <sys/sbuf.h>
54 
55 #include <fs/pseudofs/pseudofs.h>
56 #include <fs/procfs/procfs.h>
57 
58 
59 int
60 procfs_doprocrlimit(PFS_FILL_ARGS)
61 {
62 	int i;
63 
64 	for (i = 0; i < RLIM_NLIMITS; i++) {
65 
66 		/*
67 		 * Add the rlimit ident
68 		 */
69 
70 		sbuf_printf(sb, "%s ", rlimit_ident[i]);
71 
72 		/*
73 		 * Replace RLIM_INFINITY with -1 in the string
74 		 */
75 
76 		/*
77 		 * current limit
78 		 */
79 
80 		if (p->p_rlimit[i].rlim_cur == RLIM_INFINITY) {
81 			sbuf_printf(sb, "-1 ");
82 		} else {
83 			sbuf_printf(sb, "%llu ",
84 				(unsigned long long)p->p_rlimit[i].rlim_cur);
85 		}
86 
87 		/*
88 		 * maximum limit
89 		 */
90 
91 		if (p->p_rlimit[i].rlim_max == RLIM_INFINITY) {
92 			sbuf_printf(sb, "-1\n");
93 		} else {
94 			sbuf_printf(sb, "%llu\n",
95 				(unsigned long long)p->p_rlimit[i].rlim_max);
96 		}
97 	}
98 
99 	return (0);
100 }
101 
102