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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright 2019 Joyent, Inc.
*/
#include <string.h>
#include <stdlib.h>
#include <alloca.h>
#include <libuutil.h>
#include "idtab.h"
#include "psexp.h"
void
psexp_create(psexp_t *psexp)
{
idtab_create(&psexp->ps_euids);
idtab_create(&psexp->ps_ruids);
idtab_create(&psexp->ps_rgids);
idtab_create(&psexp->ps_ppids);
idtab_create(&psexp->ps_pgids);
idtab_create(&psexp->ps_sids);
idtab_create(&psexp->ps_ttys);
idtab_create(&psexp->ps_projids);
idtab_create(&psexp->ps_taskids);
idtab_create(&psexp->ps_zoneids);
idtab_create(&psexp->ps_ctids);
psexp->ps_pat = NULL;
}
void
psexp_destroy(psexp_t *psexp)
{
idtab_destroy(&psexp->ps_euids);
idtab_destroy(&psexp->ps_ruids);
idtab_destroy(&psexp->ps_rgids);
idtab_destroy(&psexp->ps_ppids);
idtab_destroy(&psexp->ps_pgids);
idtab_destroy(&psexp->ps_sids);
idtab_destroy(&psexp->ps_ttys);
idtab_destroy(&psexp->ps_projids);
idtab_destroy(&psexp->ps_taskids);
idtab_destroy(&psexp->ps_zoneids);
idtab_destroy(&psexp->ps_ctids);
if (psexp->ps_pat)
regfree(&psexp->ps_reg);
}
int
psexp_compile(psexp_t *psexp)
{
size_t nbytes;
char *buf;
int err;
idtab_sort(&psexp->ps_euids);
idtab_sort(&psexp->ps_ruids);
idtab_sort(&psexp->ps_rgids);
idtab_sort(&psexp->ps_ppids);
idtab_sort(&psexp->ps_pgids);
idtab_sort(&psexp->ps_sids);
idtab_sort(&psexp->ps_ttys);
idtab_sort(&psexp->ps_projids);
idtab_sort(&psexp->ps_taskids);
idtab_sort(&psexp->ps_zoneids);
idtab_sort(&psexp->ps_ctids);
if (psexp->ps_pat != NULL) {
if ((err = regcomp(&psexp->ps_reg, psexp->ps_pat,
REG_EXTENDED)) != 0) {
nbytes = regerror(err, &psexp->ps_reg, NULL, 0);
buf = alloca(nbytes + 1);
(void) regerror(err, &psexp->ps_reg, buf, nbytes);
(void) strcat(buf, "\n");
uu_warn(buf);
return (-1);
}
}
return (0);
}
#define NOMATCH(__f1, __f2) \
psexp->__f1.id_data && !idtab_search(&psexp->__f1, psinfo->__f2)
int
psexp_match(psexp_t *psexp, psinfo_t *psinfo, const char *argv, int flags)
{
regmatch_t pmatch;
if (NOMATCH(ps_euids, pr_euid))
return (0);
if (NOMATCH(ps_ruids, pr_uid))
return (0);
if (NOMATCH(ps_rgids, pr_gid))
return (0);
if (NOMATCH(ps_ppids, pr_ppid))
return (0);
if (NOMATCH(ps_pgids, pr_pgid))
return (0);
if (NOMATCH(ps_sids, pr_sid))
return (0);
if (NOMATCH(ps_ttys, pr_ttydev))
return (0);
if (NOMATCH(ps_projids, pr_projid))
return (0);
if (NOMATCH(ps_taskids, pr_taskid))
return (0);
if (NOMATCH(ps_zoneids, pr_zoneid))
return (0);
if (NOMATCH(ps_ctids, pr_contract))
return (0);
if (psexp->ps_pat != NULL) {
if (regexec(&psexp->ps_reg, argv, 1, &pmatch, 0) != 0)
return (0);
if ((flags & PSEXP_EXACT) &&
(pmatch.rm_so != 0 || argv[pmatch.rm_eo] != '\0'))
return (0);
}
return (1);
}
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