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      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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #define	_LARGEFILE64_SOURCE
     30 
     31 #include <stdlib.h>
     32 #include <unistd.h>
     33 #include <errno.h>
     34 #include <sys/resource.h>
     35 #include "libproc.h"
     36 
     37 /*
     38  * getrlimit() system call -- executed by subject process.
     39  */
     40 int
     41 pr_getrlimit(struct ps_prochandle *Pr,
     42 	int resource, struct rlimit *rlp)
     43 {
     44 	sysret_t rval;			/* return value from getrlimit() */
     45 	argdes_t argd[2];		/* arg descriptors for getrlimit() */
     46 	argdes_t *adp;
     47 	int sysnum;
     48 	int error;
     49 
     50 	if (Pr == NULL)		/* no subject process */
     51 		return (getrlimit(resource, rlp));
     52 
     53 	adp = &argd[0];		/* resource argument */
     54 	adp->arg_value = resource;
     55 	adp->arg_object = NULL;
     56 	adp->arg_type = AT_BYVAL;
     57 	adp->arg_inout = AI_INPUT;
     58 	adp->arg_size = 0;
     59 
     60 	adp++;			/* rlp argument */
     61 	adp->arg_value = 0;
     62 	adp->arg_object = rlp;
     63 	adp->arg_type = AT_BYREF;
     64 	adp->arg_inout = AI_OUTPUT;
     65 	adp->arg_size = sizeof (*rlp);
     66 
     67 #ifdef _LP64
     68 	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
     69 		sysnum = SYS_getrlimit64;
     70 	else
     71 		sysnum = SYS_getrlimit;
     72 #else	/* _LP64 */
     73 	sysnum = SYS_getrlimit;
     74 #endif	/* _LP64 */
     75 
     76 	error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
     77 
     78 	if (error) {
     79 		errno = (error > 0)? error : ENOSYS;
     80 		return (-1);
     81 	}
     82 	return (rval.sys_rval1);
     83 }
     84 
     85 /*
     86  * setrlimit() system call -- executed by subject process.
     87  */
     88 int
     89 pr_setrlimit(struct ps_prochandle *Pr,
     90 	int resource, const struct rlimit *rlp)
     91 {
     92 	sysret_t rval;			/* return value from setrlimit() */
     93 	argdes_t argd[2];		/* arg descriptors for setrlimit() */
     94 	argdes_t *adp;
     95 	int sysnum;
     96 	int error;
     97 
     98 	if (Pr == NULL)		/* no subject process */
     99 		return (setrlimit(resource, rlp));
    100 
    101 	adp = &argd[0];		/* resource argument */
    102 	adp->arg_value = resource;
    103 	adp->arg_object = NULL;
    104 	adp->arg_type = AT_BYVAL;
    105 	adp->arg_inout = AI_INPUT;
    106 	adp->arg_size = 0;
    107 
    108 	adp++;			/* rlp argument */
    109 	adp->arg_value = 0;
    110 	adp->arg_object = (void *)rlp;
    111 	adp->arg_type = AT_BYREF;
    112 	adp->arg_inout = AI_INPUT;
    113 	adp->arg_size = sizeof (*rlp);
    114 
    115 #ifdef _LP64
    116 	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
    117 		sysnum = SYS_setrlimit64;
    118 	else
    119 		sysnum = SYS_setrlimit;
    120 #else	/* _LP64 */
    121 	sysnum = SYS_setrlimit;
    122 #endif	/* _LP64 */
    123 
    124 	error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
    125 
    126 	if (error) {
    127 		errno = (error > 0)? error : ENOSYS;
    128 		return (-1);
    129 	}
    130 	return (rval.sys_rval1);
    131 }
    132 
    133 /*
    134  * getrlimit64() system call -- executed by subject process.
    135  */
    136 int
    137 pr_getrlimit64(struct ps_prochandle *Pr,
    138 	int resource, struct rlimit64 *rlp)
    139 {
    140 	sysret_t rval;			/* return value from getrlimit() */
    141 	argdes_t argd[2];		/* arg descriptors for getrlimit() */
    142 	argdes_t *adp;
    143 	int sysnum;
    144 	int error;
    145 
    146 	if (Pr == NULL)		/* no subject process */
    147 		return (getrlimit64(resource, rlp));
    148 
    149 	adp = &argd[0];		/* resource argument */
    150 	adp->arg_value = resource;
    151 	adp->arg_object = NULL;
    152 	adp->arg_type = AT_BYVAL;
    153 	adp->arg_inout = AI_INPUT;
    154 	adp->arg_size = 0;
    155 
    156 	adp++;			/* rlp argument */
    157 	adp->arg_value = 0;
    158 	adp->arg_object = rlp;
    159 	adp->arg_type = AT_BYREF;
    160 	adp->arg_inout = AI_OUTPUT;
    161 	adp->arg_size = sizeof (*rlp);
    162 
    163 #ifdef _LP64
    164 	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
    165 		sysnum = SYS_getrlimit64;
    166 	else
    167 		sysnum = SYS_getrlimit;
    168 #else	/* _LP64 */
    169 	sysnum = SYS_getrlimit64;
    170 #endif	/* _LP64 */
    171 
    172 	error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
    173 
    174 	if (error) {
    175 		errno = (error > 0)? error : ENOSYS;
    176 		return (-1);
    177 	}
    178 	return (rval.sys_rval1);
    179 }
    180 
    181 /*
    182  * setrlimit64() system call -- executed by subject process.
    183  */
    184 int
    185 pr_setrlimit64(struct ps_prochandle *Pr,
    186 	int resource, const struct rlimit64 *rlp)
    187 {
    188 	sysret_t rval;			/* return value from setrlimit() */
    189 	argdes_t argd[2];		/* arg descriptors for setrlimit() */
    190 	argdes_t *adp;
    191 	int sysnum;
    192 	int error;
    193 
    194 	if (Pr == NULL)		/* no subject process */
    195 		return (setrlimit64(resource, rlp));
    196 
    197 	adp = &argd[0];		/* resource argument */
    198 	adp->arg_value = resource;
    199 	adp->arg_object = NULL;
    200 	adp->arg_type = AT_BYVAL;
    201 	adp->arg_inout = AI_INPUT;
    202 	adp->arg_size = 0;
    203 
    204 	adp++;			/* rlp argument */
    205 	adp->arg_value = 0;
    206 	adp->arg_object = (void *)rlp;
    207 	adp->arg_type = AT_BYREF;
    208 	adp->arg_inout = AI_INPUT;
    209 	adp->arg_size = sizeof (*rlp);
    210 
    211 #ifdef _LP64
    212 	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
    213 		sysnum = SYS_setrlimit64;
    214 	else
    215 		sysnum = SYS_setrlimit;
    216 #else	/* _LP64 */
    217 	sysnum = SYS_setrlimit64;
    218 #endif	/* _LP64 */
    219 
    220 	error = Psyscall(Pr, &rval, sysnum, 2, &argd[0]);
    221 
    222 	if (error) {
    223 		errno = (error > 0)? error : ENOSYS;
    224 		return (-1);
    225 	}
    226 	return (rval.sys_rval1);
    227 }
    228