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test.c
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1996-09-28
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/* GNU test program (ksb and mjb) */
/* Modified to run with the GNU shell by bfox. */
/* Copyright (C) 1987-1993, 1994 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Define TEST_STANDALONE to get the /bin/test version. Otherwise, you get
the shell builtin version. */
/* #define TEST_STANDALONE */
#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#if !defined (TEST_STANDALONE)
# include "shell.h"
# include "posixstat.h"
# include "filecntl.h"
#else /* TEST_STANDALONE */
# include "system.h"
# include "version.h"
# include "safe-stat.h"
# include "safe-lstat.h"
# include "group-member.h"
# if !defined (S_IXUGO)
# define S_IXUGO 0111
# endif /* S_IXUGO */
# if defined (_POSIX_VERSION)
# include <limits.h>
# else /* !_POSIX_VERSION */
# include <sys/param.h>
# endif /* _POSIX_VERSION */
#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
#define digit(c) ((c) >= '0' && (c) <= '9')
#define digit_value(c) ((c) - '0')
char *program_name;
#endif /* TEST_STANDALONE */
#if !defined (_POSIX_VERSION)
# include <sys/file.h>
#endif /* !_POSIX_VERSION */
#include <errno.h>
#ifndef errno
extern int errno;
#endif
#if !defined (STREQ)
# define STREQ(a, b) ((a)[0] == (b)[0] && strcmp (a, b) == 0)
#endif /* !STREQ */
#if !defined (member)
# define member(c, s) ((c) ? (index ((s), (c)) ? 1 : 0) : 0)
#endif /* !member */
extern gid_t getgid (), getegid ();
extern uid_t geteuid ();
#if !defined (R_OK)
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0
#endif /* R_OK */
/* This name is used solely when printing --version information. */
#define COMMAND_NAME "test"
/* The following few defines control the truth and false output of each stage.
TRUE and FALSE are what we use to compute the final output value.
SHELL_BOOLEAN is the form which returns truth or falseness in shell terms.
TRUTH_OR is how to do logical or with TRUE and FALSE.
TRUTH_AND is how to do logical and with TRUE and FALSE..
Default is TRUE = 1, FALSE = 0, TRUTH_OR = a | b, TRUTH_AND = a & b,
SHELL_BOOLEAN = (!value). */
#define TRUE 1
#define FALSE 0
#define SHELL_BOOLEAN(value) (!(value))
#define TRUTH_OR(a, b) ((a) | (b))
#define TRUTH_AND(a, b) ((a) & (b))
#if defined (TEST_STANDALONE)
# define test_exit(val) exit (val)
#else
static jmp_buf test_exit_buf;
static int test_error_return = 0;
# define test_exit(val) test_error_return = val, longjmp (test_exit_buf, 1)
#endif /* !TEST_STANDALONE */
char *xrealloc ();
static int pos; /* The offset of the current argument in ARGV. */
static int argc; /* The number of arguments present in ARGV. */
static char **argv; /* The argument list. */
static int unop ();
static int binop ();
static int unary_operator ();
static int binary_operator ();
static int two_arguments ();
static int three_arguments ();
static int posixtest ();
static int expr ();
static int term ();
static int and ();
static int or ();
#if __GNUC__ >= 2 && defined (__GNUC_MINOR__) \
&& __GNUC_MINOR__ >= 5 && !defined (__STRICT_ANSI__)
#define NO_RETURN_ATTRIBUTE __attribute__ ((noreturn))
#else
#define NO_RETURN_ATTRIBUTE /* empty */
#endif
static void test_syntax_error () NO_RETURN_ATTRIBUTE;
static void beyond () NO_RETURN_ATTRIBUTE;
static void
test_syntax_error (format, arg)
char *format, *arg;
{
fprintf (stderr, "%s: ", argv[0]);
fprintf (stderr, format, arg);
fflush (stderr);
test_exit (SHELL_BOOLEAN (FALSE));
}
/* A wrapper for stat () which disallows pathnames that are empty strings. */
static int
test_stat (path, finfo)
char *path;
struct stat *finfo;
{
if (*path == '\0')
{
errno = ENOENT;
return (-1);
}
return (SAFE_STAT (path, finfo));
}
/* Do the same thing access(2) does, but use the effective uid and gid,
and don't make the mistake of telling root that any file is
executable. */
static int
eaccess (path, mode)
char *path;
int mode;
{
struct stat st;
static int euid = -1;
if (test_stat (path, &st) < 0)
return (-1);
if (euid == -1)
euid = geteuid ();
if (euid == 0)
{
/* Root can read or write any file. */
if (mode != X_OK)
return (0);
/* Root can execute any file that has any one of the execute
bits set. */
if (st.st_mode & S_IXUGO)
return (0);
}
if (st.st_uid == euid) /* owner */
mode <<= 6;
else if (group_member (st.st_gid))
mode <<= 3;
if (st.st_mode & mode)
return (0);
return (-1);
}
/* Increment our position in the argument list. Check that we're not
past the end of the argument list. This check is supressed if the
argument is FALSE. Made a macro for efficiency. */
#define advance(f) \
do \
{ \
++pos; \
if ((f) && pos >= argc) \
beyond (); \
} \
while (0)
#if !defined (advance)
static int
advance (f)
int f;
{
++pos;
if (f && pos >= argc)
beyond ();
}
#endif /* advance */
#define unary_advance() \
do \
{ \
advance (1); \
++pos; \
} \
while (0)
/*
* beyond - call when we're beyond the end of the argument list (an
* error condition)
*/
static void
beyond ()
{
test_syntax_error ("argument expected\n", (char *)NULL);
}
/* Syntax error for when an integer argument was expected, but
something else was found. */
static void
integer_expected_error (pch)
char *pch;
{
test_syntax_error ("integer expression expected %s\n", pch);
}
/* Return non-zero if the characters pointed to by STRING constitute a
valid number. Stuff the converted number into RESULT if RESULT is
a non-null pointer to a long. */
static int
isint (string, result)
register char *string;
long *result;
{
int sign;
long value;
sign = 1;
value = 0;
if (result)
*result = 0;
/* Skip leading whitespace characters. */
while (whitespace (*string))
string++;
if (!*string)
return (0);
/* We allow leading `-' or `+'. */
if (*string == '-' || *string == '+')
{
if (!digit (string[1]))
return (0);
if (*string == '-')
sign = -1;
string++;
}
while (digit (*string))
{
if (result)
value = (value * 10) + digit_value (*string);
string++;
}
/* Skip trailing whitespace, if any. */
while (whitespace (*string))
string++;
/* Error if not at end of string. */
if (*string)
return (0);
if (result)
{
value *= sign;
*result = value;
}
return (1);
}
/* Find the modification time of FILE, and stuff it into AGE, a pointer
to a long. Return non-zero if successful, else zero. */
static int
age_of (filename, age)
char *filename;
long *age;
{
struct stat finfo;
if (test_stat (filename, &finfo) < 0)
return (0);
if (age)
*age = finfo.st_mtime;
return (1);
}
/*
* term - parse a term and return 1 or 0 depending on whether the term
* evaluates to true or false, respectively.
*
* term ::=
* '-'('h'|'d'|'f'|'r'|'s'|'w'|'c'|'b'|'p'|'u'|'g'|'k') filename
* '-'('L'|'x') filename
* '-t' [ int ]
* '-'('z'|'n') string
* string
* string ('!='|'=') string
* <int> '-'(eq|ne|le|lt|ge|gt) <int>
* file '-'(nt|ot|ef) file
* '(' <expr> ')'
* int ::=
* '-l' string
* positive and negative integers
*/
static int
term ()
{
int value;
if (pos >= argc)
beyond ();
/* Deal with leading "not"'s. */
if ('!' == argv[pos][0] && '\000' == argv[pos][1])
{
value = FALSE;
while (pos < argc && '!' == argv[pos][0] && '\000' == argv[pos][1])
{
advance (1);
value ^= (TRUE);
}
return (value ^ (term ()));
}
/* A paren-bracketed argument. */
if (argv[pos][0] == '(' && !argv[pos][1])
{
advance (1);
value = expr ();
if (argv[pos][0] != ')' || argv[pos][1])
test_syntax_error ("')' expected, found %s\n", argv[pos]);
advance (0);
return (TRUE == (value));
}
/* are there enough arguments left that this could be dyadic? */
if (((pos + 3 <= argc) && binop (argv[pos + 1])) ||
((pos + 4 <= argc && STREQ (argv[pos], "-l") && binop (argv[pos + 2]))))
value = binary_operator ();
/* Might be a switch type argument */
else if ('-' == argv[pos][0] && 0 == argv[pos][2])
{
if (unop (argv[pos][1]))
value = unary_operator ();
else
test_syntax_error ("%s: unary operator expected\n", argv[pos]);
}
else
{
value = (argv[pos][0] != '\0');
advance (0);
}
return (value);
}
static int
binary_operator ()
{
register int op;
struct stat stat_buf, stat_spare;
long int l, r, value;
/* Are the left and right integer expressions of the form '-l string'? */
int l_is_l, r_is_l;
if (strcmp (argv[pos], "-l") == 0)
{
l_is_l = 1;
op = pos + 2;
/* Make sure that OP is still a valid binary operator. */
if ((op >= argc - 1) || (binop (argv[op]) == 0))
test_syntax_error ("%s: binary operator expected\n", argv[op]);
advance (0);
}
else
{
l_is_l = 0;
op = pos + 1;
}
if ((op < argc - 2) && (strcmp (argv[op + 1], "-l") == 0))
{
r_is_l = 1;
advance (0);
}
else
r_is_l = 0;
if (argv[op][0] == '-')
{
/* check for eq, nt, and stuff */
switch (argv[op][1])
{
default:
break;
case 'l':
if (argv[op][2] == 't' && !argv[op][3])
{
/* lt */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -lt");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -lt");
}
pos += 3;
return (TRUE == (l < r));
}
if (argv[op][2] == 'e' && !argv[op][3])
{
/* le */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -le");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -le");
}
pos += 3;
return (TRUE == (l <= r));
}
break;
case 'g':
if (argv[op][2] == 't' && !argv[op][3])
{
/* gt integer greater than */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -gt");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -gt");
}
pos += 3;
return (TRUE == (l > r));
}
if (argv[op][2] == 'e' && !argv[op][3])
{
/* ge - integer greater than or equal to */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -ge");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -ge");
}
pos += 3;
return (TRUE == (l >= r));
}
break;
case 'n':
if (argv[op][2] == 't' && !argv[op][3])
{
/* nt - newer than */
pos += 3;
if (l_is_l || r_is_l)
test_syntax_error ("-nt does not accept -l\n", (char *)NULL);
if (age_of (argv[op - 1], &l) && age_of (argv[op + 1], &r))
return (TRUE == (l > r));
else
return (FALSE);
}
if (argv[op][2] == 'e' && !argv[op][3])
{
/* ne - integer not equal */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -ne");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -ne");
}
pos += 3;
return (TRUE == (l != r));
}
break;
case 'e':
if (argv[op][2] == 'q' && !argv[op][3])
{
/* eq - integer equal */
if (l_is_l)
l = strlen (argv[op - 1]);
else
{
if (!isint (argv[op - 1], &l))
integer_expected_error ("before -eq");
}
if (r_is_l)
r = strlen (argv[op + 2]);
else
{
if (!isint (argv[op + 1], &r))
integer_expected_error ("after -eq");
}
pos += 3;
return (TRUE == (l == r));
}
if (argv[op][2] == 'f' && !argv[op][3])
{
/* ef - hard link? */
pos += 3;
if (l_is_l || r_is_l)
test_syntax_error ("-ef does not accept -l\n", (char *)NULL);
if (SAFE_STAT (argv[op - 1], &stat_buf) < 0)
return (FALSE);
if (SAFE_STAT (argv[op + 1], &stat_spare) < 0)
return (FALSE);
return (TRUE ==
(stat_buf.st_dev == stat_spare.st_dev &&
stat_buf.st_ino == stat_spare.st_ino));
}
break;
case 'o':
if ('t' == argv[op][2] && '\000' == argv[op][3])
{
/* ot - older than */
pos += 3;
if (l_is_l || r_is_l)
test_syntax_error ("-nt does not accept -l\n", (char *)NULL);
if (age_of (argv[op - 1], &l) && age_of (argv[op + 1], &r))
return (TRUE == (l < r));
return (FALSE);
}
break;
}
test_syntax_error ("unknown binary operator", argv[op]);
}
if (argv[op][0] == '=' && !argv[op][1])
{
value = (strcmp (argv[pos], argv[pos + 2]) == 0);
pos += 3;
return (TRUE == value);
}
if (strcmp (argv[op], "!=") == 0)
{
value = (strcmp (argv[pos], argv[pos + 2]) != 0);
pos += 3;
return (TRUE == value);
}
/* Not reached. */
abort ();
}
static int
unary_operator ()
{
long r, value;
struct stat stat_buf;
switch (argv[pos][1])
{
default:
return (FALSE);
/* All of the following unary operators use unary_advance (), which
checks to make sure that there is an argument, and then advances
pos right past it. This means that pos - 1 is the location of the
argument. */
case 'a': /* file exists in the file system? */
case 'e':
unary_advance ();
value = -1 != test_stat (argv[pos - 1], &stat_buf);
return (TRUE == value);
case 'r': /* file is readable? */
unary_advance ();
value = -1 != eaccess (argv[pos - 1], R_OK);
return (TRUE == value);
case 'w': /* File is writeable? */
unary_advance ();
value = -1 != eaccess (argv[pos - 1], W_OK);
return (TRUE == value);
case 'x': /* File is executable? */
unary_advance ();
value = -1 != eaccess (argv[pos - 1], X_OK);
return (TRUE == value);
case 'O': /* File is owned by you? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (geteuid () == stat_buf.st_uid));
case 'G': /* File is owned by your group? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (getegid () == stat_buf.st_gid));
case 'f': /* File is a file? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
/* Under POSIX, -f is true if the given file exists
and is a regular file. */
return (TRUE == ((S_ISREG (stat_buf.st_mode)) ||
(0 == (stat_buf.st_mode & S_IFMT))));
case 'd': /* File is a directory? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (S_ISDIR (stat_buf.st_mode)));
case 's': /* File has something in it? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (stat_buf.st_size > (off_t) 0));
case 'S': /* File is a socket? */
#if !defined (S_ISSOCK)
return (FALSE);
#else
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (S_ISSOCK (stat_buf.st_mode)));
#endif /* S_ISSOCK */
case 'c': /* File is character special? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (S_ISCHR (stat_buf.st_mode)));
case 'b': /* File is block special? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (S_ISBLK (stat_buf.st_mode)));
case 'p': /* File is a named pipe? */
unary_advance ();
#ifndef S_ISFIFO
return (FALSE);
#else
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (S_ISFIFO (stat_buf.st_mode)));
#endif /* S_ISFIFO */
case 'L': /* Same as -h */
/*FALLTHROUGH*/
case 'h': /* File is a symbolic link? */
unary_advance ();
#ifndef S_ISLNK
return (FALSE);
#else
/* An empty filename is not a valid pathname. */
if ((argv[pos - 1][0] == '\0') ||
(SAFE_LSTAT (argv[pos - 1], &stat_buf) < 0))
return (FALSE);
return (TRUE == (S_ISLNK (stat_buf.st_mode)));
#endif /* S_IFLNK */
case 'u': /* File is setuid? */
unary_advance ();
#ifndef S_ISUID
return (FALSE);
#else
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (0 != (stat_buf.st_mode & S_ISUID)));
#endif
case 'g': /* File is setgid? */
unary_advance ();
#ifndef S_ISGID
return (FALSE);
#else
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
return (TRUE == (0 != (stat_buf.st_mode & S_ISGID)));
#endif
case 'k': /* File has sticky bit set? */
unary_advance ();
if (test_stat (argv[pos - 1], &stat_buf) < 0)
return (FALSE);
#ifndef S_ISVTX
/* This is not Posix, and is not defined on some Posix systems. */
return (FALSE);
#else
return (TRUE == (0 != (stat_buf.st_mode & S_ISVTX)));
#endif
case 't': /* File (fd) is a terminal? (fd) defaults to stdout. */
advance (0);
if (pos < argc && isint (argv[pos], &r))
{
advance (0);
return (TRUE == (isatty ((int) r)));
}
return (TRUE == (isatty (1)));
case 'n': /* True if arg has some length. */
unary_advance ();
return (TRUE == (argv[pos - 1][0] != 0));
case 'z': /* True if arg has no length. */
unary_advance ();
return (TRUE == (argv[pos - 1][0] == '\0'));
}
}
/*
* and:
* term
* term '-a' and
*/
static int
and ()
{
int value;
value = term ();
while ((pos < argc) && strcmp (argv[pos], "-a") == 0)
{
advance (0);
value = TRUTH_AND (value, and ());
}
return (TRUE == value);
}
/*
* or:
* and
* and '-o' or
*/
static int
or ()
{
int value;
value = and ();
while ((pos < argc) && strcmp (argv[pos], "-o") == 0)
{
advance (0);
value = TRUTH_OR (value, or ());
}
return (TRUE == value);
}
/*
* expr:
* or
*/
static int
expr ()
{
if (pos >= argc)
beyond ();
return (FALSE ^ (or ())); /* Same with this. */
}
/* Return TRUE if S is one of the test command's binary operators. */
static int
binop (s)
char *s;
{
return ((STREQ (s, "=")) || (STREQ (s, "!=")) || (STREQ (s, "-nt")) ||
(STREQ (s, "-ot")) || (STREQ (s, "-ef")) || (STREQ (s, "-eq")) ||
(STREQ (s, "-ne")) || (STREQ (s, "-lt")) || (STREQ (s, "-le")) ||
(STREQ (s, "-gt")) || (STREQ (s, "-ge")));
}
/* Return non-zero if OP is one of the test command's unary operators. */
static int
unop (op)
int op;
{
return (member (op, "abcdefgkLhprsStuwxOGnz"));
}
static int
two_arguments ()
{
int value;
if (STREQ (argv[pos], "!"))
value = strlen (argv[pos+1]) == 0;
else if ((argv[pos][0] == '-') && (argv[pos][2] == '\0'))
{
if (unop (argv[pos][1]))
value = unary_operator ();
else
test_syntax_error ("%s: unary operator expected\n", argv[pos]);
}
else
beyond ();
return (value);
}
static int
three_arguments ()
{
int value;
if (STREQ (argv[pos], "!"))
{
advance (1);
value = !two_arguments ();
}
else if (binop (argv[pos+1]))
{
value = binary_operator ();
pos = argc;
}
else if ((STREQ (argv[pos+1], "-a")) || (STREQ (argv[pos+1], "-o")) ||
(argv[pos][0] == '('))
value = expr ();
else
test_syntax_error ("%s: binary operator expected\n", argv[pos+1]);
return (value);
}
/* This is an implementation of a Posix.2 proposal by David Korn. */
static int
posixtest ()
{
int value;
switch (argc - 1) /* one extra passed in */
{
case 0:
value = FALSE;
pos = argc;
break;
case 1:
value = strlen (argv[1]) != 0;
pos = argc;
break;
case 2:
value = two_arguments ();
pos = argc;
break;
case 3:
value = three_arguments ();
break;
case 4:
if (STREQ (argv[pos], "!"))
{
advance (1);
value = !three_arguments ();
break;
}
/* FALLTHROUGH */
case 5:
default:
value = expr ();
}
return (value);
}
#if defined (TEST_STANDALONE)
#include "long-options.h"
static void
usage (status)
int status;
{
if (status != 0)
fprintf (stderr, "Try `%s --help' for more information.\n",
program_name);
else
{
printf ("\
Usage: %s EXPRESSION\n\
or: [ EXPRESSION ]\n\
or: %s OPTION\n\
",
program_name, program_name);
printf ("\
\n\
--help display this help and exit\n\
--version output version information and exit\n\
\n\
EXPRESSION is true or false and sets exit status. It is one of:\n\
");
printf ("\
\n\
( EXPRESSION ) EXPRESSION is true\n\
! EXPRESSION EXPRESSION is false\n\
EXPRESSION1 -a EXPRESSION2 both EXPRESSION1 and EXPRESSION2 are true\n\
EXPRESSION1 -o EXPRESSION2 either EXPRESSION1 or EXPRESSION2 is true\n\
\n\
[-n] STRING the length of STRING is non-zero\n\
-z STRING the length of STRING is zero\n\
STRING1 = STRING2 the strings are equal\n\
STRING1 != STRING2 the strings are not equal\n\
\n\
INTEGER1 -eq INTEGER2 INTEGER1 is equal to INTEGER2\n\
INTEGER1 -ge INTEGER2 INTEGER1 is greater than or equal to INTEGER2\n\
INTEGER1 -gt INTEGER2 INTEGER1 is greater than INTEGER2\n\
INTEGER1 -le INTEGER2 INTEGER1 is less than or equal to INTEGER2\n\
INTEGER1 -lt INTEGER2 INTEGER1 is less than INTEGER2\n\
INTEGER1 -ne INTEGER2 INTEGER1 is not equal to INTEGER2\n\
");
printf ("\
\n\
FILE1 -ef FILE2 FILE1 and FILE2 have the same device and inode numbers\n\
FILE1 -nt FILE2 FILE1 is newer (modification date) than FILE2\n\
FILE1 -ot FILE2 FILE1 is older than FILE2\n\
\n\
-G FILE FILE exists and is owned by the effective group ID\n\
-L FILE FILE exists and is a symbolic link\n\
-O FILE FILE exists and is owned by the effective user ID\n\
-S FILE FILE exists and is a socket\n\
-b FILE FILE exists and is block special\n\
-c FILE FILE exists and is character special\n\
-d FILE FILE exists and is a directory\n\
-e FILE FILE exists\n\
-f FILE FILE exists and is a regular file\n\
-g FILE FILE exists and is set-group-ID\n\
-k FILE FILE exists and has its sticky bit set\n\
-p FILE FILE exists and is a named pipe\n\
-r FILE FILE exists and is readable\n\
-s FILE FILE exists and has a size greater than zero\n\
-t standard output is opened on a terminal\n\
-t FD file descriptor FD is opened on a terminal\n\
-u FILE FILE exists and its set-user-ID bit is set\n\
-w FILE FILE exists and is writable\n\
-x FILE FILE exists and is executable\n\
");
printf ("\
\n\
--help display this help and exit\n\
--version output version information and exit\n\
\n\
Beware that parentheses need to be escaped by backslashes for shells.\n\
INTEGER may also be -l STRING, which evaluates to the length of STRING.\n\
");
}
exit (status);
}
#endif /* TEST_STANDALONE */
/*
* [:
* '[' expr ']'
* test:
* test expr
*/
int
#if defined (TEST_STANDALONE)
main (margc, margv)
#else
test_command (margc, margv)
#endif /* !TEST_STANDALONE */
int margc;
char **margv;
{
int value;
#if !defined (TEST_STANDALONE)
int code;
code = setjmp (test_exit_buf);
if (code)
return (test_error_return);
#else /* TEST_STANDALONE */
program_name = margv[0];
#endif /* TEST_STANDALONE */
argv = margv;
if (margv[0] && strcmp (margv[0], "[") == 0)
{
parse_long_options (argc, argv, COMMAND_NAME, version_string, usage);
--margc;
if (margc < 2)
test_exit (SHELL_BOOLEAN (FALSE));
if (margv[margc] && strcmp (margv[margc], "]") != 0)
test_syntax_error ("missing `]'\n", (char *)NULL);
}
argc = margc;
pos = 1;
if (pos >= argc)
test_exit (SHELL_BOOLEAN (FALSE));
parse_long_options (argc, argv, COMMAND_NAME, version_string, usage);
value = posixtest ();
if (pos != argc)
test_syntax_error ("too many arguments\n", (char *)NULL);
test_exit (SHELL_BOOLEAN (value));
}