1999-08-16 09:44:09 +00:00
|
|
|
/* $NetBSD: test.c,v 1.21 1999/04/05 09:48:38 kleink Exp $ */
|
|
|
|
|
2005-01-10 08:39:26 +00:00
|
|
|
/*-
|
1999-08-16 09:44:09 +00:00
|
|
|
* test(1); version 7-like -- author Erik Baalbergen
|
|
|
|
* modified by Eric Gisin to be used as built-in.
|
|
|
|
* modified by Arnold Robbins to add SVR3 compatibility
|
|
|
|
* (-x -c -b -p -u -g -k) plus Korn's -L -nt -ot -ef and new -S (socket).
|
|
|
|
* modified by J.T. Conklin for NetBSD.
|
1994-05-26 06:18:55 +00:00
|
|
|
*
|
1999-08-16 09:44:09 +00:00
|
|
|
* This program is in the Public Domain.
|
1994-05-26 06:18:55 +00:00
|
|
|
*/
|
2011-02-15 22:17:47 +00:00
|
|
|
/*
|
|
|
|
* Important: This file is used both as a standalone program /bin/test and
|
|
|
|
* as a builtin for /bin/sh (#define SHELL).
|
|
|
|
*/
|
1994-05-26 06:18:55 +00:00
|
|
|
|
2002-06-30 05:15:05 +00:00
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
1994-05-26 06:18:55 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
#include <sys/types.h>
|
1997-12-10 22:18:54 +00:00
|
|
|
#include <sys/stat.h>
|
1994-05-26 06:18:55 +00:00
|
|
|
|
|
|
|
#include <ctype.h>
|
|
|
|
#include <err.h>
|
|
|
|
#include <errno.h>
|
2002-03-28 16:30:42 +00:00
|
|
|
#include <inttypes.h>
|
2001-05-20 05:33:53 +00:00
|
|
|
#include <limits.h>
|
2001-11-19 20:15:10 +00:00
|
|
|
#include <stdarg.h>
|
1994-05-26 06:18:55 +00:00
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
2001-11-17 19:10:11 +00:00
|
|
|
#ifdef SHELL
|
|
|
|
#define main testcmd
|
|
|
|
#include "bltin/bltin.h"
|
2001-11-19 19:57:45 +00:00
|
|
|
#else
|
2001-12-17 23:14:14 +00:00
|
|
|
#include <locale.h>
|
|
|
|
|
2002-05-11 01:25:54 +00:00
|
|
|
static void error(const char *, ...) __dead2 __printf0like(1, 2);
|
2001-11-19 19:57:45 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
error(const char *msg, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
va_start(ap, msg);
|
|
|
|
verrx(2, msg, ap);
|
|
|
|
/*NOTREACHED*/
|
|
|
|
va_end(ap);
|
|
|
|
}
|
2001-11-17 19:10:11 +00:00
|
|
|
#endif
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
/* test(1) accepts the following grammar:
|
|
|
|
oexpr ::= aexpr | aexpr "-o" oexpr ;
|
|
|
|
aexpr ::= nexpr | nexpr "-a" aexpr ;
|
|
|
|
nexpr ::= primary | "!" primary
|
|
|
|
primary ::= unary-operator operand
|
|
|
|
| operand binary-operator operand
|
|
|
|
| operand
|
|
|
|
| "(" oexpr ")"
|
|
|
|
;
|
|
|
|
unary-operator ::= "-r"|"-w"|"-x"|"-f"|"-d"|"-c"|"-b"|"-p"|
|
|
|
|
"-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|"-L"|"-S";
|
|
|
|
|
|
|
|
binary-operator ::= "="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
|
2013-05-31 22:54:20 +00:00
|
|
|
"-nt"|"-ot"|"-ef";
|
1999-08-16 09:44:09 +00:00
|
|
|
operand ::= <any legal UNIX file name>
|
|
|
|
*/
|
|
|
|
|
2013-12-01 17:00:57 +00:00
|
|
|
enum token_types {
|
|
|
|
UNOP = 0x100,
|
|
|
|
BINOP = 0x200,
|
|
|
|
BUNOP = 0x300,
|
|
|
|
BBINOP = 0x400,
|
|
|
|
PAREN = 0x500
|
|
|
|
};
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
enum token {
|
|
|
|
EOI,
|
2013-12-01 17:00:57 +00:00
|
|
|
OPERAND,
|
|
|
|
FILRD = UNOP + 1,
|
1999-08-16 09:44:09 +00:00
|
|
|
FILWR,
|
|
|
|
FILEX,
|
|
|
|
FILEXIST,
|
|
|
|
FILREG,
|
|
|
|
FILDIR,
|
|
|
|
FILCDEV,
|
|
|
|
FILBDEV,
|
|
|
|
FILFIFO,
|
|
|
|
FILSOCK,
|
|
|
|
FILSYM,
|
|
|
|
FILGZ,
|
|
|
|
FILTT,
|
|
|
|
FILSUID,
|
|
|
|
FILSGID,
|
|
|
|
FILSTCK,
|
|
|
|
STREZ,
|
|
|
|
STRNZ,
|
2013-12-01 17:00:57 +00:00
|
|
|
FILUID,
|
|
|
|
FILGID,
|
|
|
|
FILNT = BINOP + 1,
|
|
|
|
FILOT,
|
|
|
|
FILEQ,
|
1999-08-16 09:44:09 +00:00
|
|
|
STREQ,
|
|
|
|
STRNE,
|
|
|
|
STRLT,
|
|
|
|
STRGT,
|
|
|
|
INTEQ,
|
|
|
|
INTNE,
|
|
|
|
INTGE,
|
|
|
|
INTGT,
|
|
|
|
INTLE,
|
|
|
|
INTLT,
|
2013-12-01 17:00:57 +00:00
|
|
|
UNOT = BUNOP + 1,
|
|
|
|
BAND = BBINOP + 1,
|
1999-08-16 09:44:09 +00:00
|
|
|
BOR,
|
2013-12-01 17:00:57 +00:00
|
|
|
LPAREN = PAREN + 1,
|
|
|
|
RPAREN
|
1994-05-26 06:18:55 +00:00
|
|
|
};
|
|
|
|
|
2013-12-01 17:00:57 +00:00
|
|
|
#define TOKEN_TYPE(token) ((token) & 0xff00)
|
1994-05-26 06:18:55 +00:00
|
|
|
|
2016-01-30 19:59:58 +00:00
|
|
|
static const struct t_op {
|
|
|
|
char op_text[2];
|
2013-12-01 17:00:57 +00:00
|
|
|
short op_num;
|
2016-01-30 19:59:58 +00:00
|
|
|
} ops1[] = {
|
2013-12-01 17:00:57 +00:00
|
|
|
{"=", STREQ},
|
|
|
|
{"<", STRLT},
|
|
|
|
{">", STRGT},
|
|
|
|
{"!", UNOT},
|
|
|
|
{"(", LPAREN},
|
|
|
|
{")", RPAREN},
|
2016-01-30 19:59:58 +00:00
|
|
|
}, opsm1[] = {
|
|
|
|
{"r", FILRD},
|
|
|
|
{"w", FILWR},
|
|
|
|
{"x", FILEX},
|
|
|
|
{"e", FILEXIST},
|
|
|
|
{"f", FILREG},
|
|
|
|
{"d", FILDIR},
|
|
|
|
{"c", FILCDEV},
|
|
|
|
{"b", FILBDEV},
|
|
|
|
{"p", FILFIFO},
|
|
|
|
{"u", FILSUID},
|
|
|
|
{"g", FILSGID},
|
|
|
|
{"k", FILSTCK},
|
|
|
|
{"s", FILGZ},
|
|
|
|
{"t", FILTT},
|
|
|
|
{"z", STREZ},
|
|
|
|
{"n", STRNZ},
|
|
|
|
{"h", FILSYM}, /* for backwards compat */
|
|
|
|
{"O", FILUID},
|
|
|
|
{"G", FILGID},
|
|
|
|
{"L", FILSYM},
|
|
|
|
{"S", FILSOCK},
|
|
|
|
{"a", BAND},
|
|
|
|
{"o", BOR},
|
|
|
|
}, ops2[] = {
|
|
|
|
{"==", STREQ},
|
|
|
|
{"!=", STRNE},
|
|
|
|
}, opsm2[] = {
|
|
|
|
{"eq", INTEQ},
|
|
|
|
{"ne", INTNE},
|
|
|
|
{"ge", INTGE},
|
|
|
|
{"gt", INTGT},
|
|
|
|
{"le", INTLE},
|
|
|
|
{"lt", INTLT},
|
|
|
|
{"nt", FILNT},
|
|
|
|
{"ot", FILOT},
|
|
|
|
{"ef", FILEQ},
|
1994-05-26 06:18:55 +00:00
|
|
|
};
|
|
|
|
|
2011-10-31 08:59:17 +00:00
|
|
|
static int nargc;
|
|
|
|
static char **t_wp;
|
|
|
|
static int parenlevel;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2002-02-02 06:50:57 +00:00
|
|
|
static int aexpr(enum token);
|
2013-12-05 22:53:32 +00:00
|
|
|
static int binop(enum token);
|
2002-02-02 06:50:57 +00:00
|
|
|
static int equalf(const char *, const char *);
|
|
|
|
static int filstat(char *, enum token);
|
|
|
|
static int getn(const char *);
|
2002-03-28 16:30:42 +00:00
|
|
|
static intmax_t getq(const char *);
|
2002-02-02 06:50:57 +00:00
|
|
|
static int intcmp(const char *, const char *);
|
2009-05-26 22:33:10 +00:00
|
|
|
static int isunopoperand(void);
|
|
|
|
static int islparenoperand(void);
|
|
|
|
static int isrparenoperand(void);
|
2013-05-31 22:54:20 +00:00
|
|
|
static int newerf(const char *, const char *);
|
2002-02-02 06:50:57 +00:00
|
|
|
static int nexpr(enum token);
|
|
|
|
static int oexpr(enum token);
|
2013-05-31 22:54:20 +00:00
|
|
|
static int olderf(const char *, const char *);
|
2002-02-02 06:50:57 +00:00
|
|
|
static int primary(enum token);
|
|
|
|
static void syntax(const char *, const char *);
|
|
|
|
static enum token t_lex(char *);
|
1994-05-26 06:18:55 +00:00
|
|
|
|
|
|
|
int
|
2002-02-02 06:50:57 +00:00
|
|
|
main(int argc, char **argv)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
2002-08-15 14:53:20 +00:00
|
|
|
int res;
|
1999-12-28 09:34:57 +00:00
|
|
|
char *p;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2011-03-15 22:22:11 +00:00
|
|
|
if ((p = strrchr(argv[0], '/')) == NULL)
|
1999-12-28 09:34:57 +00:00
|
|
|
p = argv[0];
|
|
|
|
else
|
|
|
|
p++;
|
|
|
|
if (strcmp(p, "[") == 0) {
|
2001-11-19 20:39:24 +00:00
|
|
|
if (strcmp(argv[--argc], "]") != 0)
|
2001-11-19 19:57:45 +00:00
|
|
|
error("missing ]");
|
1994-05-26 06:18:55 +00:00
|
|
|
argv[argc] = NULL;
|
|
|
|
}
|
|
|
|
|
2002-08-15 14:53:20 +00:00
|
|
|
/* no expression => false */
|
|
|
|
if (--argc <= 0)
|
|
|
|
return 1;
|
|
|
|
|
2001-12-17 23:14:14 +00:00
|
|
|
#ifndef SHELL
|
|
|
|
(void)setlocale(LC_CTYPE, "");
|
|
|
|
#endif
|
2002-08-15 14:53:20 +00:00
|
|
|
nargc = argc;
|
1999-08-16 09:44:09 +00:00
|
|
|
t_wp = &argv[1];
|
2009-05-26 22:33:10 +00:00
|
|
|
parenlevel = 0;
|
|
|
|
if (nargc == 4 && strcmp(*t_wp, "!") == 0) {
|
|
|
|
/* Things like ! "" -o x do not fit in the normal grammar. */
|
|
|
|
--nargc;
|
|
|
|
++t_wp;
|
|
|
|
res = oexpr(t_lex(*t_wp));
|
|
|
|
} else
|
|
|
|
res = !oexpr(t_lex(*t_wp));
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2002-08-15 14:53:20 +00:00
|
|
|
if (--nargc > 0)
|
1999-08-16 09:44:09 +00:00
|
|
|
syntax(*t_wp, "unexpected operator");
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2002-02-02 06:50:57 +00:00
|
|
|
syntax(const char *op, const char *msg)
|
1999-08-16 09:44:09 +00:00
|
|
|
{
|
|
|
|
|
|
|
|
if (op && *op)
|
2001-11-19 19:57:45 +00:00
|
|
|
error("%s: %s", op, msg);
|
1999-08-16 09:44:09 +00:00
|
|
|
else
|
2001-11-19 19:57:45 +00:00
|
|
|
error("%s", msg);
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
oexpr(enum token n)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
int res;
|
1994-05-26 06:18:55 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
res = aexpr(n);
|
2002-08-15 14:53:20 +00:00
|
|
|
if (t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL) == BOR)
|
|
|
|
return oexpr(t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL)) ||
|
|
|
|
res;
|
1999-08-16 09:44:09 +00:00
|
|
|
t_wp--;
|
2002-08-15 14:53:20 +00:00
|
|
|
nargc++;
|
1999-08-16 09:44:09 +00:00
|
|
|
return res;
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
aexpr(enum token n)
|
1999-08-16 09:44:09 +00:00
|
|
|
{
|
|
|
|
int res;
|
1994-05-26 06:18:55 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
res = nexpr(n);
|
2002-08-15 14:53:20 +00:00
|
|
|
if (t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL) == BAND)
|
|
|
|
return aexpr(t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL)) &&
|
|
|
|
res;
|
1999-08-16 09:44:09 +00:00
|
|
|
t_wp--;
|
2002-08-15 14:53:20 +00:00
|
|
|
nargc++;
|
1999-08-16 09:44:09 +00:00
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
nexpr(enum token n)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
if (n == UNOT)
|
2002-08-15 14:53:20 +00:00
|
|
|
return !nexpr(t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL));
|
1999-08-16 09:44:09 +00:00
|
|
|
return primary(n);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
primary(enum token n)
|
1999-08-16 09:44:09 +00:00
|
|
|
{
|
|
|
|
enum token nn;
|
|
|
|
int res;
|
|
|
|
|
|
|
|
if (n == EOI)
|
|
|
|
return 0; /* missing expression */
|
|
|
|
if (n == LPAREN) {
|
2009-05-26 22:33:10 +00:00
|
|
|
parenlevel++;
|
2002-08-15 14:53:20 +00:00
|
|
|
if ((nn = t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL)) ==
|
2009-05-26 22:33:10 +00:00
|
|
|
RPAREN) {
|
|
|
|
parenlevel--;
|
1999-08-16 09:44:09 +00:00
|
|
|
return 0; /* missing expression */
|
2009-05-26 22:33:10 +00:00
|
|
|
}
|
1999-08-16 09:44:09 +00:00
|
|
|
res = oexpr(nn);
|
2002-08-15 14:53:20 +00:00
|
|
|
if (t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL) != RPAREN)
|
1999-08-16 09:44:09 +00:00
|
|
|
syntax(NULL, "closing paren expected");
|
2009-05-26 22:33:10 +00:00
|
|
|
parenlevel--;
|
1999-08-16 09:44:09 +00:00
|
|
|
return res;
|
|
|
|
}
|
2013-12-01 17:00:57 +00:00
|
|
|
if (TOKEN_TYPE(n) == UNOP) {
|
1999-08-16 09:44:09 +00:00
|
|
|
/* unary expression */
|
2002-08-15 14:53:20 +00:00
|
|
|
if (--nargc == 0)
|
2013-12-01 17:00:57 +00:00
|
|
|
syntax(NULL, "argument expected"); /* impossible */
|
1999-08-16 09:44:09 +00:00
|
|
|
switch (n) {
|
|
|
|
case STREZ:
|
2002-08-15 14:53:20 +00:00
|
|
|
return strlen(*++t_wp) == 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case STRNZ:
|
2002-08-15 14:53:20 +00:00
|
|
|
return strlen(*++t_wp) != 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILTT:
|
2002-08-15 14:53:20 +00:00
|
|
|
return isatty(getn(*++t_wp));
|
1999-08-16 09:44:09 +00:00
|
|
|
default:
|
2002-08-15 14:53:20 +00:00
|
|
|
return filstat(*++t_wp, n);
|
1994-11-05 20:24:49 +00:00
|
|
|
}
|
1999-08-16 09:44:09 +00:00
|
|
|
}
|
1994-05-26 06:18:55 +00:00
|
|
|
|
2013-12-05 22:53:32 +00:00
|
|
|
nn = t_lex(nargc > 0 ? t_wp[1] : NULL);
|
|
|
|
if (TOKEN_TYPE(nn) == BINOP)
|
|
|
|
return binop(nn);
|
1999-08-16 09:44:09 +00:00
|
|
|
|
|
|
|
return strlen(*t_wp) > 0;
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2013-12-05 22:53:32 +00:00
|
|
|
binop(enum token n)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
2013-12-01 17:00:57 +00:00
|
|
|
const char *opnd1, *op, *opnd2;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
|
|
|
opnd1 = *t_wp;
|
2013-12-05 22:53:32 +00:00
|
|
|
op = nargc > 0 ? (--nargc, *++t_wp) : NULL;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2002-08-15 14:53:20 +00:00
|
|
|
if ((opnd2 = nargc > 0 ? (--nargc, *++t_wp) : NULL) == NULL)
|
2013-12-01 17:00:57 +00:00
|
|
|
syntax(op, "argument expected");
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2013-12-01 17:00:57 +00:00
|
|
|
switch (n) {
|
1999-08-16 09:44:09 +00:00
|
|
|
case STREQ:
|
|
|
|
return strcmp(opnd1, opnd2) == 0;
|
|
|
|
case STRNE:
|
|
|
|
return strcmp(opnd1, opnd2) != 0;
|
|
|
|
case STRLT:
|
|
|
|
return strcmp(opnd1, opnd2) < 0;
|
|
|
|
case STRGT:
|
|
|
|
return strcmp(opnd1, opnd2) > 0;
|
|
|
|
case INTEQ:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) == 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case INTNE:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) != 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case INTGE:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) >= 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case INTGT:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) > 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case INTLE:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) <= 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case INTLT:
|
2000-07-10 21:29:28 +00:00
|
|
|
return intcmp(opnd1, opnd2) < 0;
|
2013-05-31 22:54:20 +00:00
|
|
|
case FILNT:
|
|
|
|
return newerf (opnd1, opnd2);
|
|
|
|
case FILOT:
|
|
|
|
return olderf (opnd1, opnd2);
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILEQ:
|
|
|
|
return equalf (opnd1, opnd2);
|
|
|
|
default:
|
|
|
|
abort();
|
|
|
|
/* NOTREACHED */
|
|
|
|
}
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
filstat(char *nm, enum token mode)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
struct stat s;
|
|
|
|
|
|
|
|
if (mode == FILSYM ? lstat(nm, &s) : stat(nm, &s))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
switch (mode) {
|
|
|
|
case FILRD:
|
2002-03-06 11:20:13 +00:00
|
|
|
return (eaccess(nm, R_OK) == 0);
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILWR:
|
2002-03-06 11:20:13 +00:00
|
|
|
return (eaccess(nm, W_OK) == 0);
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILEX:
|
2002-03-06 11:20:13 +00:00
|
|
|
/* XXX work around eaccess(2) false positives for superuser */
|
|
|
|
if (eaccess(nm, X_OK) != 0)
|
1999-08-20 16:19:26 +00:00
|
|
|
return 0;
|
2002-03-06 11:20:13 +00:00
|
|
|
if (S_ISDIR(s.st_mode) || geteuid() != 0)
|
1999-08-20 16:19:26 +00:00
|
|
|
return 1;
|
|
|
|
return (s.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)) != 0;
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILEXIST:
|
2002-03-06 11:20:13 +00:00
|
|
|
return (eaccess(nm, F_OK) == 0);
|
1999-08-16 09:44:09 +00:00
|
|
|
case FILREG:
|
|
|
|
return S_ISREG(s.st_mode);
|
|
|
|
case FILDIR:
|
|
|
|
return S_ISDIR(s.st_mode);
|
|
|
|
case FILCDEV:
|
|
|
|
return S_ISCHR(s.st_mode);
|
|
|
|
case FILBDEV:
|
|
|
|
return S_ISBLK(s.st_mode);
|
|
|
|
case FILFIFO:
|
|
|
|
return S_ISFIFO(s.st_mode);
|
|
|
|
case FILSOCK:
|
|
|
|
return S_ISSOCK(s.st_mode);
|
|
|
|
case FILSYM:
|
|
|
|
return S_ISLNK(s.st_mode);
|
|
|
|
case FILSUID:
|
|
|
|
return (s.st_mode & S_ISUID) != 0;
|
|
|
|
case FILSGID:
|
|
|
|
return (s.st_mode & S_ISGID) != 0;
|
|
|
|
case FILSTCK:
|
|
|
|
return (s.st_mode & S_ISVTX) != 0;
|
|
|
|
case FILGZ:
|
|
|
|
return s.st_size > (off_t)0;
|
|
|
|
case FILUID:
|
|
|
|
return s.st_uid == geteuid();
|
|
|
|
case FILGID:
|
|
|
|
return s.st_gid == getegid();
|
|
|
|
default:
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-01-30 19:59:58 +00:00
|
|
|
static int
|
|
|
|
find_op_1char(const struct t_op *op, const struct t_op *end, const char *s)
|
1999-08-16 09:44:09 +00:00
|
|
|
{
|
2016-01-30 19:59:58 +00:00
|
|
|
char c;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2016-01-30 19:59:58 +00:00
|
|
|
c = s[0];
|
|
|
|
while (op != end) {
|
|
|
|
if (c == *op->op_text)
|
|
|
|
return op->op_num;
|
|
|
|
op++;
|
1999-08-16 09:44:09 +00:00
|
|
|
}
|
2016-01-30 19:59:58 +00:00
|
|
|
return OPERAND;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
find_op_2char(const struct t_op *op, const struct t_op *end, const char *s)
|
|
|
|
{
|
|
|
|
while (op != end) {
|
|
|
|
if (s[0] == op->op_text[0] && s[1] == op->op_text[1])
|
1999-08-16 09:44:09 +00:00
|
|
|
return op->op_num;
|
|
|
|
op++;
|
|
|
|
}
|
|
|
|
return OPERAND;
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
2016-01-30 19:59:58 +00:00
|
|
|
static int
|
|
|
|
find_op(const char *s)
|
|
|
|
{
|
|
|
|
if (s[0] == '\0')
|
|
|
|
return OPERAND;
|
|
|
|
else if (s[1] == '\0')
|
|
|
|
return find_op_1char(ops1, (&ops1)[1], s);
|
|
|
|
else if (s[2] == '\0')
|
|
|
|
return s[0] == '-' ? find_op_1char(opsm1, (&opsm1)[1], s + 1) :
|
|
|
|
find_op_2char(ops2, (&ops2)[1], s);
|
|
|
|
else if (s[3] == '\0')
|
|
|
|
return s[0] == '-' ? find_op_2char(opsm2, (&opsm2)[1], s + 1) :
|
|
|
|
OPERAND;
|
|
|
|
else
|
|
|
|
return OPERAND;
|
|
|
|
}
|
|
|
|
|
|
|
|
static enum token
|
|
|
|
t_lex(char *s)
|
|
|
|
{
|
|
|
|
int num;
|
|
|
|
|
|
|
|
if (s == 0) {
|
|
|
|
return EOI;
|
|
|
|
}
|
|
|
|
num = find_op(s);
|
|
|
|
if (((TOKEN_TYPE(num) == UNOP || TOKEN_TYPE(num) == BUNOP)
|
|
|
|
&& isunopoperand()) ||
|
|
|
|
(num == LPAREN && islparenoperand()) ||
|
|
|
|
(num == RPAREN && isrparenoperand()))
|
|
|
|
return OPERAND;
|
|
|
|
return num;
|
|
|
|
}
|
|
|
|
|
1994-05-26 06:18:55 +00:00
|
|
|
static int
|
2009-05-26 22:33:10 +00:00
|
|
|
isunopoperand(void)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
char *s;
|
|
|
|
char *t;
|
2016-01-30 19:59:58 +00:00
|
|
|
int num;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
2002-08-15 14:53:20 +00:00
|
|
|
if (nargc == 1)
|
1999-08-16 09:44:09 +00:00
|
|
|
return 1;
|
2002-08-15 14:53:20 +00:00
|
|
|
s = *(t_wp + 1);
|
2009-05-26 22:33:10 +00:00
|
|
|
if (nargc == 2)
|
|
|
|
return parenlevel == 1 && strcmp(s, ")") == 0;
|
2002-08-15 14:53:20 +00:00
|
|
|
t = *(t_wp + 2);
|
2016-01-30 19:59:58 +00:00
|
|
|
num = find_op(s);
|
|
|
|
return TOKEN_TYPE(num) == BINOP &&
|
|
|
|
(parenlevel == 0 || t[0] != ')' || t[1] != '\0');
|
2009-05-26 22:33:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
islparenoperand(void)
|
|
|
|
{
|
|
|
|
char *s;
|
2016-01-30 19:59:58 +00:00
|
|
|
int num;
|
2009-05-26 22:33:10 +00:00
|
|
|
|
|
|
|
if (nargc == 1)
|
|
|
|
return 1;
|
|
|
|
s = *(t_wp + 1);
|
|
|
|
if (nargc == 2)
|
|
|
|
return parenlevel == 1 && strcmp(s, ")") == 0;
|
|
|
|
if (nargc != 3)
|
|
|
|
return 0;
|
2016-01-30 19:59:58 +00:00
|
|
|
num = find_op(s);
|
|
|
|
return TOKEN_TYPE(num) == BINOP;
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
2009-05-26 22:33:10 +00:00
|
|
|
static int
|
|
|
|
isrparenoperand(void)
|
|
|
|
{
|
|
|
|
char *s;
|
|
|
|
|
|
|
|
if (nargc == 1)
|
|
|
|
return 0;
|
|
|
|
s = *(t_wp + 1);
|
|
|
|
if (nargc == 2)
|
|
|
|
return parenlevel == 1 && strcmp(s, ")") == 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
/* atoi with error detection */
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
getn(const char *s)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
char *p;
|
|
|
|
long r;
|
1994-05-26 06:18:55 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
errno = 0;
|
|
|
|
r = strtol(s, &p, 10);
|
1994-09-11 13:57:31 +00:00
|
|
|
|
2001-12-17 23:14:14 +00:00
|
|
|
if (s == p)
|
|
|
|
error("%s: bad number", s);
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
if (errno != 0)
|
2001-12-14 23:20:54 +00:00
|
|
|
error((errno == EINVAL) ? "%s: bad number" :
|
|
|
|
"%s: out of range", s);
|
1994-09-11 21:30:09 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
while (isspace((unsigned char)*p))
|
2001-11-19 20:39:24 +00:00
|
|
|
p++;
|
1999-08-16 09:44:09 +00:00
|
|
|
|
|
|
|
if (*p)
|
2001-11-19 20:39:24 +00:00
|
|
|
error("%s: bad number", s);
|
1999-08-16 09:44:09 +00:00
|
|
|
|
|
|
|
return (int) r;
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|
|
|
|
|
2000-07-10 21:29:28 +00:00
|
|
|
/* atoi with error detection and 64 bit range */
|
2002-03-28 16:30:42 +00:00
|
|
|
static intmax_t
|
2002-02-02 06:50:57 +00:00
|
|
|
getq(const char *s)
|
2000-07-10 21:29:28 +00:00
|
|
|
{
|
|
|
|
char *p;
|
2002-03-28 16:30:42 +00:00
|
|
|
intmax_t r;
|
2000-07-10 21:29:28 +00:00
|
|
|
|
|
|
|
errno = 0;
|
2002-03-28 16:30:42 +00:00
|
|
|
r = strtoimax(s, &p, 10);
|
2000-07-10 21:29:28 +00:00
|
|
|
|
2001-12-17 23:14:14 +00:00
|
|
|
if (s == p)
|
|
|
|
error("%s: bad number", s);
|
|
|
|
|
2000-07-10 21:29:28 +00:00
|
|
|
if (errno != 0)
|
2001-12-14 23:20:54 +00:00
|
|
|
error((errno == EINVAL) ? "%s: bad number" :
|
|
|
|
"%s: out of range", s);
|
2000-07-10 21:29:28 +00:00
|
|
|
|
|
|
|
while (isspace((unsigned char)*p))
|
2001-11-19 20:39:24 +00:00
|
|
|
p++;
|
2000-07-10 21:29:28 +00:00
|
|
|
|
|
|
|
if (*p)
|
2001-11-19 20:39:24 +00:00
|
|
|
error("%s: bad number", s);
|
2000-07-10 21:29:28 +00:00
|
|
|
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
intcmp (const char *s1, const char *s2)
|
2000-07-10 21:29:28 +00:00
|
|
|
{
|
2002-03-28 16:30:42 +00:00
|
|
|
intmax_t q1, q2;
|
2000-07-10 21:29:28 +00:00
|
|
|
|
|
|
|
|
|
|
|
q1 = getq(s1);
|
|
|
|
q2 = getq(s2);
|
|
|
|
|
|
|
|
if (q1 > q2)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
if (q1 < q2)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
static int
|
2013-05-31 22:54:20 +00:00
|
|
|
newerf (const char *f1, const char *f2)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
struct stat b1, b2;
|
1994-05-26 06:18:55 +00:00
|
|
|
|
2002-07-27 22:53:44 +00:00
|
|
|
if (stat(f1, &b1) != 0 || stat(f2, &b2) != 0)
|
|
|
|
return 0;
|
|
|
|
|
2013-05-31 22:54:20 +00:00
|
|
|
if (b1.st_mtim.tv_sec > b2.st_mtim.tv_sec)
|
2002-07-27 22:53:44 +00:00
|
|
|
return 1;
|
2013-05-31 22:54:20 +00:00
|
|
|
if (b1.st_mtim.tv_sec < b2.st_mtim.tv_sec)
|
2002-07-27 22:53:44 +00:00
|
|
|
return 0;
|
|
|
|
|
2013-05-31 22:54:20 +00:00
|
|
|
return (b1.st_mtim.tv_nsec > b2.st_mtim.tv_nsec);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
olderf (const char *f1, const char *f2)
|
|
|
|
{
|
|
|
|
return (newerf(f2, f1));
|
1999-08-16 09:44:09 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2002-02-02 06:50:57 +00:00
|
|
|
equalf (const char *f1, const char *f2)
|
1994-05-26 06:18:55 +00:00
|
|
|
{
|
1999-08-16 09:44:09 +00:00
|
|
|
struct stat b1, b2;
|
1994-05-26 06:18:55 +00:00
|
|
|
|
1999-08-16 09:44:09 +00:00
|
|
|
return (stat (f1, &b1) == 0 &&
|
|
|
|
stat (f2, &b2) == 0 &&
|
|
|
|
b1.st_dev == b2.st_dev &&
|
|
|
|
b1.st_ino == b2.st_ino);
|
1994-05-26 06:18:55 +00:00
|
|
|
}
|