test.c revision 965005c81e0f731867d47892b9fb677030b102df
/*
* 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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* test expression
* [ expression ]
*/
#include "defs.h"
#include <sys/types.h>
#include <sys/stat.h>
extern int lstat();
void bfailed(unsigned char *, unsigned char *, unsigned char *) __NORETURN;
int ap, ac;
unsigned char **av;
int
test(int argn, unsigned char *com[])
{
ac = argn;
av = com;
ap = 1;
if (eq(com[0],"["))
{
if (!eq(com[--ac], "]"))
failed((unsigned char *)"test", "] missing");
}
com[ac] = 0;
if (ac <= 1)
return(1);
return(exp() ? 0 : 1);
}
unsigned char *
nxtarg(mt)
{
if (ap >= ac)
{
if (mt)
{
ap++;
return(0);
}
failed((unsigned char *)"test", "argument expected");
}
return(av[ap++]);
}
int
exp(void)
{
int p1;
unsigned char *p2;
p1 = e1();
p2 = nxtarg(1);
if (p2 != 0)
{
if (eq(p2, "-o"))
return(p1 | exp());
/* if (!eq(p2, ")"))
failed((unsigned char *)"test", synmsg); */
}
ap--;
return(p1);
}
int
e1(void)
{
int p1;
unsigned char *p2;
p1 = e2();
p2 = nxtarg(1);
if ((p2 != 0) && eq(p2, "-a"))
return(p1 & e1());
ap--;
return(p1);
}
int
e2(void)
{
if (eq(nxtarg(0), "!"))
return(!e3());
ap--;
return(e3());
}
int
e3(void)
{
int p1;
unsigned char *a;
unsigned char *p2;
longlong_t ll_1, ll_2;
a = nxtarg(0);
if (eq(a, "("))
{
p1 = exp();
if (!eq(nxtarg(0), ")"))
failed((unsigned char *)"test", ") expected");
return(p1);
}
p2 = nxtarg(1);
ap--;
if ((p2 == 0) || (!eq(p2, "=") && !eq(p2, "!=")))
{
if (eq(a, "-r"))
return(chk_access(nxtarg(0), S_IREAD, 0) == 0);
if (eq(a, "-w"))
return(chk_access(nxtarg(0), S_IWRITE, 0) == 0);
if (eq(a, "-x"))
return(chk_access(nxtarg(0), S_IEXEC, 0) == 0);
if (eq(a, "-d"))
return(filtyp(nxtarg(0), S_IFDIR));
if (eq(a, "-c"))
return(filtyp(nxtarg(0), S_IFCHR));
if (eq(a, "-b"))
return(filtyp(nxtarg(0), S_IFBLK));
if (eq(a, "-f"))
if (ucb_builtins) {
struct stat statb;
return(stat((char *)nxtarg(0), &statb) >= 0 &&
(statb.st_mode & S_IFMT) != S_IFDIR);
}
else
return(filtyp(nxtarg(0), S_IFREG));
if (eq(a, "-u"))
return(ftype(nxtarg(0), S_ISUID));
if (eq(a, "-g"))
return(ftype(nxtarg(0), S_ISGID));
if (eq(a, "-k"))
return(ftype(nxtarg(0), S_ISVTX));
if (eq(a, "-p"))
return(filtyp(nxtarg(0), S_IFIFO));
if (eq(a, "-h") || eq(a, "-L"))
return(filtyp(nxtarg(0), S_IFLNK));
if (eq(a, "-s"))
return(fsizep(nxtarg(0)));
if (eq(a, "-t"))
{
if (ap >= ac) /* no args */
return(isatty(1));
else if (eq((a = nxtarg(0)), "-a") || eq(a, "-o"))
{
ap--;
return(isatty(1));
}
else
return(isatty(atoi((char *)a)));
}
if (eq(a, "-n"))
return(!eq(nxtarg(0), ""));
if (eq(a, "-z"))
return(eq(nxtarg(0), ""));
}
p2 = nxtarg(1);
if (p2 == 0)
return(!eq(a, ""));
if (eq(p2, "-a") || eq(p2, "-o"))
{
ap--;
return(!eq(a, ""));
}
if (eq(p2, "="))
return(eq(nxtarg(0), a));
if (eq(p2, "!="))
return(!eq(nxtarg(0), a));
ll_1 = strtoll((char *)a, NULL, 10);
ll_2 = strtoll((char *)nxtarg(0), NULL, 10);
if (eq(p2, "-eq"))
return (ll_1 == ll_2);
if (eq(p2, "-ne"))
return (ll_1 != ll_2);
if (eq(p2, "-gt"))
return (ll_1 > ll_2);
if (eq(p2, "-lt"))
return (ll_1 < ll_2);
if (eq(p2, "-ge"))
return (ll_1 >= ll_2);
if (eq(p2, "-le"))
return (ll_1 <= ll_2);
bfailed((unsigned char *)btest, (unsigned char *)badop, p2);
/* NOTREACHED */
}
int
ftype(unsigned char *f, int field)
{
struct stat statb;
if (stat((char *)f, &statb) < 0)
return(0);
if ((statb.st_mode & field) == field)
return(1);
return(0);
}
int
filtyp(unsigned char *f, int field)
{
struct stat statb;
int (*statf)() = (field == S_IFLNK) ? lstat : stat;
if ((*statf)(f, &statb) < 0)
return(0);
if ((statb.st_mode & S_IFMT) == field)
return(1);
else
return(0);
}
int
fsizep(unsigned char *f)
{
struct stat statb;
if (stat((char *)f, &statb) < 0)
return(0);
return(statb.st_size > 0);
}
/*
* fake diagnostics to continue to look like original
* test(1) diagnostics
*/
void
bfailed(unsigned char *s1, unsigned char *s2, unsigned char *s3)
{
prp();
prs(s1);
if (s2)
{
prs(colon);
prs(s2);
prs(s3);
}
newline();
exitsh(ERROR);
}