1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1997-2000 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #define _LARGEFILE64_SOURCE
28
29 #include <stdlib.h>
30 #include <unistd.h>
31 #include <errno.h>
32 #include <sys/resource.h>
33 #include "libproc.h"
34
35 /*
36 * getrlimit() system call -- executed by subject process.
37 */
38 int
pr_getrlimit(struct ps_prochandle * Pr,int resource,struct rlimit * rlp)39 pr_getrlimit(struct ps_prochandle *Pr,
40 int resource, struct rlimit *rlp)
41 {
42 sysret_t rval; /* return value from getrlimit() */
43 argdes_t argd[2]; /* arg descriptors for getrlimit() */
44 argdes_t *adp;
45 int sysnum;
46 int error;
47
48 if (Pr == NULL) /* no subject process */
49 return (getrlimit(resource, rlp));
50
51 adp = &argd[0]; /* resource argument */
52 adp->arg_value = resource;
53 adp->arg_object = NULL;
54 adp->arg_type = AT_BYVAL;
55 adp->arg_inout = AI_INPUT;
56 adp->arg_size = 0;
57
58 adp++; /* rlp argument */
59 adp->arg_value = 0;
60 adp->arg_object = rlp;
61 adp->arg_type = AT_BYREF;
62 adp->arg_inout = AI_OUTPUT;
63 adp->arg_size = sizeof (*rlp);
64
65 #ifdef _LP64
66 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
67 sysnum = SYS_getrlimit64;
68 else
69 sysnum = SYS_getrlimit;
70 #else /* _LP64 */
71 sysnum = SYS_getrlimit;
72 #endif /* _LP64 */
73
74 error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
75
76 if (error) {
77 errno = (error > 0)? error : ENOSYS;
78 return (-1);
79 }
80 return (rval.sys_rval1);
81 }
82
83 /*
84 * setrlimit() system call -- executed by subject process.
85 */
86 int
pr_setrlimit(struct ps_prochandle * Pr,int resource,const struct rlimit * rlp)87 pr_setrlimit(struct ps_prochandle *Pr,
88 int resource, const struct rlimit *rlp)
89 {
90 sysret_t rval; /* return value from setrlimit() */
91 argdes_t argd[2]; /* arg descriptors for setrlimit() */
92 argdes_t *adp;
93 int sysnum;
94 int error;
95
96 if (Pr == NULL) /* no subject process */
97 return (setrlimit(resource, rlp));
98
99 adp = &argd[0]; /* resource argument */
100 adp->arg_value = resource;
101 adp->arg_object = NULL;
102 adp->arg_type = AT_BYVAL;
103 adp->arg_inout = AI_INPUT;
104 adp->arg_size = 0;
105
106 adp++; /* rlp argument */
107 adp->arg_value = 0;
108 adp->arg_object = (void *)rlp;
109 adp->arg_type = AT_BYREF;
110 adp->arg_inout = AI_INPUT;
111 adp->arg_size = sizeof (*rlp);
112
113 #ifdef _LP64
114 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
115 sysnum = SYS_setrlimit64;
116 else
117 sysnum = SYS_setrlimit;
118 #else /* _LP64 */
119 sysnum = SYS_setrlimit;
120 #endif /* _LP64 */
121
122 error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
123
124 if (error) {
125 errno = (error > 0)? error : ENOSYS;
126 return (-1);
127 }
128 return (rval.sys_rval1);
129 }
130
131 /*
132 * getrlimit64() system call -- executed by subject process.
133 */
134 int
pr_getrlimit64(struct ps_prochandle * Pr,int resource,struct rlimit64 * rlp)135 pr_getrlimit64(struct ps_prochandle *Pr,
136 int resource, struct rlimit64 *rlp)
137 {
138 sysret_t rval; /* return value from getrlimit() */
139 argdes_t argd[2]; /* arg descriptors for getrlimit() */
140 argdes_t *adp;
141 int sysnum;
142 int error;
143
144 if (Pr == NULL) /* no subject process */
145 return (getrlimit64(resource, rlp));
146
147 adp = &argd[0]; /* resource argument */
148 adp->arg_value = resource;
149 adp->arg_object = NULL;
150 adp->arg_type = AT_BYVAL;
151 adp->arg_inout = AI_INPUT;
152 adp->arg_size = 0;
153
154 adp++; /* rlp argument */
155 adp->arg_value = 0;
156 adp->arg_object = rlp;
157 adp->arg_type = AT_BYREF;
158 adp->arg_inout = AI_OUTPUT;
159 adp->arg_size = sizeof (*rlp);
160
161 #ifdef _LP64
162 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
163 sysnum = SYS_getrlimit64;
164 else
165 sysnum = SYS_getrlimit;
166 #else /* _LP64 */
167 sysnum = SYS_getrlimit64;
168 #endif /* _LP64 */
169
170 error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
171
172 if (error) {
173 errno = (error > 0)? error : ENOSYS;
174 return (-1);
175 }
176 return (rval.sys_rval1);
177 }
178
179 /*
180 * setrlimit64() system call -- executed by subject process.
181 */
182 int
pr_setrlimit64(struct ps_prochandle * Pr,int resource,const struct rlimit64 * rlp)183 pr_setrlimit64(struct ps_prochandle *Pr,
184 int resource, const struct rlimit64 *rlp)
185 {
186 sysret_t rval; /* return value from setrlimit() */
187 argdes_t argd[2]; /* arg descriptors for setrlimit() */
188 argdes_t *adp;
189 int sysnum;
190 int error;
191
192 if (Pr == NULL) /* no subject process */
193 return (setrlimit64(resource, rlp));
194
195 adp = &argd[0]; /* resource argument */
196 adp->arg_value = resource;
197 adp->arg_object = NULL;
198 adp->arg_type = AT_BYVAL;
199 adp->arg_inout = AI_INPUT;
200 adp->arg_size = 0;
201
202 adp++; /* rlp argument */
203 adp->arg_value = 0;
204 adp->arg_object = (void *)rlp;
205 adp->arg_type = AT_BYREF;
206 adp->arg_inout = AI_INPUT;
207 adp->arg_size = sizeof (*rlp);
208
209 #ifdef _LP64
210 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
211 sysnum = SYS_setrlimit64;
212 else
213 sysnum = SYS_setrlimit;
214 #else /* _LP64 */
215 sysnum = SYS_setrlimit64;
216 #endif /* _LP64 */
217
218 error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
219
220 if (error) {
221 errno = (error > 0)? error : ENOSYS;
222 return (-1);
223 }
224 return (rval.sys_rval1);
225 }
226