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This little BSD licensed library has been kicking around for years.

Browse source 
It allows one to trivially convert an absolute path to a relative path
and the reverse. The test programs themselves are very useful in scripts
but the real use comes shortly with the -r and -a arguments to ln.
These are sometimes known as the --relative and --absolute flags and
can force a symlink to be relative when you only have an absolue path.
Another place these are sometimes used is to add -a and -r args to 'realpath'.
Incredibly useful in Makefiles.

I was going to just add the files in with 'ln' but a library makes more sense.
The test programs may come out in their own right some day for scripting.

released under a BSD 2-clause:
 * Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
 * Copyright (c) 1999 Tama Communications Corporation. All rights reserved.

The test directry does not conform to any framework.
Not connected to build.
doc people may want to play with the manual pages.

Obtained from:  https://www.tamacom.com/pathconvert.html  Shigio Yamaguchi.
MFC after: 1 month
Relnotes:       yes
Sponsored by:   Panzura, Tama Communications Corporation
This commit is contained in:
Julian Elischer 2016-11-23 07:57:52 +00:00
parent fb6216bd43
commit 0f7f3352c8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=309035
10 changed files with 806 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
lib/libpathconv/Makefile Normal file
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# $FreeBSD$
.include <src.opts.mk>
PACKAGE=lib${LIB}
LIB= pathconv
SHLIB_MAJOR= 1
MAN= rel2abs.3 abs2rel.3
INCS= pathconv.h
SRCS= abs2rel.c rel2abs.c
#VERSION_DEF= ${.CURDIR}/../libc/Versions.def
#SYMBOL_MAPS= ${.CURDIR}/Symbol.map
.if ${MK_TESTS} != "no"
SUBDIR+= tests
.endif
.include <bsd.lib.mk>

136
lib/libpathconv/abs2rel.3 Normal file
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.\"
.\" Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
.\" Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd Dec 15, 1997"
.Dt ABS2REL 3
.Os
.Sh NAME
.Nm abs2rel
.Nd make a relative path name from an absolute path name
.Sh SYNOPSIS
.Ft "char *"
.Fn abs2rel "const char *path" "const char *base" "char *result" "size_t size"
.Sh DESCRIPTION
The
.Fn abs2rel
function makes a relative path name from an absolute path name
.Fa path
based on a directory
.Fa base
and copies the resulting path name into the memory referenced by
.Fa result .
The
.Fa result
argument must refer to a buffer capable of storing at least
.Fa size
characters.
The resulting path name may include symbolic links.
The
.Fn abs2rel
function doesn't check whether or not any path exists.
.Sh "RETURN VALUES"
The
.Fn abs2rel
function returns relative path name on success.
If an error occurs,
it returns
.Dv NULL .
.Sh ERRORS
The
.Fn abs2rel
function may fail and set the external variable
.Va errno
to indicate the error.
.Bl -tag -width Er
.It Bq Er EINVAL
The
.Fa base
directory isn't an absolute path name or the
.Fa size
argument is zero.
.It Bq Er ERANGE
The
.Fa size
argument is greater than zero but smaller than the length of the pathname plus 1.
.Sh EXAMPLE
char result[MAXPATHLEN];
char *path = abs2rel("/usr/src/sys", "/usr/local/lib", result, MAXPATHLEN);
yields:
path == "../../src/sys"
Similarly,
path1 = abs2rel("/usr/src/sys", "/usr", result, MAXPATHLEN);
path2 = abs2rel("/usr/src/sys", "/usr/src/sys", result, MAXPATHLEN);
yields:
path1 == "src/sys"
path2 == "."
.Sh BUGS
If the
.Fa base
directory includes symbolic links,
the
.Fn abs2rel
function produces the wrong path.
For example, if '/sys' is a symbolic link to '/usr/src/sys',
char *path = abs2rel("/usr/local/lib", "/sys", result, MAXPATHLEN);
yields:
path == "../usr/local/lib" /* It's wrong!! */
You should convert the base directory into a real path in advance.
.Pp
path = abs2rel("/sys/kern", realpath("/sys", resolvedname), result, MAXPATHLEN);
yields:
path == "../../../sys/kern" /* It's correct but ... */
That is correct, but a little redundant. If you wish get the simple
answer 'kern', do the following.
path = abs2rel(realpath("/sys/kern", r1), realpath("/sys", r2),
result, MAXPATHLEN);
The
.Fn realpath
function assures correct result, but don't forget that
.Fn realpath
requires that all but the last component of the path exist.
.Sh "SEE ALSO"
.Xr rel2abs 3
.Sh AUTHORS
Shigio Yamaguchi (shigio@tamacom.com)

111
lib/libpathconv/abs2rel.c Normal file
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/*
* Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
* Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "pathconv.h" /* prototypes */
/*
* abs2rel: convert an absolute path name into relative.
*
* i) path absolute path
* i) base base directory (must be absolute path)
* o) result result buffer
* i) size size of result buffer
* r) != NULL: relative path
* == NULL: error
*/
char *
abs2rel(const char *path, const char *base, char *result, const size_t size)
{
const char *pp, *bp, *branch;
/*
* endp points the last position which is safe in the result buffer.
*/
const char *endp = result + size - 1;
char *rp;
if (*path != '/') {
if (strlen(path) >= size)
goto erange;
strcpy(result, path);
goto finish;
} else if (*base != '/' || !size) {
errno = EINVAL;
return (NULL);
} else if (size == 1)
goto erange;
/*
* seek to branched point.
*/
branch = path;
for (pp = path, bp = base; *pp && *bp && *pp == *bp; pp++, bp++)
if (*pp == '/')
branch = pp;
if ((*pp == 0 || (*pp == '/' && *(pp + 1) == 0)) &&
(*bp == 0 || (*bp == '/' && *(bp + 1) == 0))) {
rp = result;
*rp++ = '.';
if (*pp == '/' || *(pp - 1) == '/')
*rp++ = '/';
if (rp > endp)
goto erange;
*rp = 0;
goto finish;
}
if ((*pp == 0 && *bp == '/') || (*pp == '/' && *bp == 0))
branch = pp;
/*
* up to root.
*/
rp = result;
for (bp = base + (branch - path); *bp; bp++)
if (*bp == '/' && *(bp + 1) != 0) {
if (rp + 3 > endp)
goto erange;
*rp++ = '.';
*rp++ = '.';
*rp++ = '/';
}
if (rp > endp)
goto erange;
*rp = 0;
/*
* down to leaf.
*/
if (*branch) {
if (rp + strlen(branch + 1) > endp)
goto erange;
strcpy(rp, branch + 1);
} else
*--rp = 0;
finish:
return result;
erange:
errno = ERANGE;
return (NULL);
}

34
lib/libpathconv/pathconv.h Normal file
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/*
* Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
* Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _PATHCONV_H
#define _PATHCONV_H
char * rel2abs(const char *path, const char *base, char *result, const size_t size);
char * abs2rel(const char *path, const char *base, char *result, const size_t size);
#endif /*_PATHCONV_H */

98
lib/libpathconv/rel2abs.3 Normal file
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.\"
.\" Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
.\" Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd Dec 3, 1997"
.Dt REL2ABS 3
.Os
.Sh NAME
.Nm rel2abs
.Nd make an absolute path name from a relative path name
.Sh SYNOPSIS
.Ft "char *"
.Fn rel2abs "const char *path" "const char *base" "char *result" "size_t size"
.Sh DESCRIPTION
The
.Fn rel2abs
function makes an absolute path name from a relative path name
.Fa path
based on a directory
.Fa base
and copies the resulting path name into the memory referenced by
.Fa result .
The
.Fa result
argument must refer to a buffer capable of storing at least
.Fa size
character
The resulting path name may include symbolic links.
.Fn abs2rel
doesn't check whether or not any path exists.
.Sh "RETURN VALUES"
The
.Fn rel2abs
function returns absolute path name on success.
If an error occurs, it returns
.Dv NULL .
.Sh ERRORS
The
.Fn rel2abs
function may fail and set the external variable
.Va errno
to indicate the error.
.Bl -tag -width Er
.It Bq Er EINVAL
The
.Fa base
directory isn't an absolute path name or the
.Fa size
argument is zero.
.It Bq Er ERANGE
The
.Fa size
argument is greater than zero but smaller than the length of the pathname plus 1
.Sh EXAMPLE
char result[MAXPATHLEN];
char *path = rel2abs("../../src/sys", "/usr/local/lib", result, MAXPATHLEN);
yields:
path == "/usr/src/sys"
Similarly,
path1 = rel2abs("src/sys", "/usr", result, MAXPATHLEN);
path2 = rel2abs(".", "/usr/src/sys", result, MAXPATHLEN);
yields:
path1 == "/usr/src/sys"
path2 == "/usr/src/sys"
.Sh "SEE ALSO"
.Xr abs2rel 3
.Sh AUTHORS
Shigio Yamaguchi (shigio@tamacom.com)

132
lib/libpathconv/rel2abs.c Normal file
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/*
* Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
* Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "pathconv.h" /* prototypes */
/*
* rel2abs: convert an relative path name into absolute.
*
* i) path relative path
* i) base base directory (must be absolute path)
* o) result result buffer
* i) size size of result buffer
* r) != NULL: absolute path
* == NULL: error
*/
char *
rel2abs(const char *path, const char *base, char *result, const size_t size)
{
const char *pp, *bp;
/*
* endp points the last position which is safe in the result buffer.
*/
const char *endp = result + size - 1;
char *rp;
size_t length;
if (*path == '/') {
if (strlen(path) >= size)
goto erange;
strcpy(result, path);
goto finish;
} else if (*base != '/' || !size) {
errno = EINVAL;
return (NULL);
} else if (size == 1)
goto erange;
length = strlen(base);
if (!strcmp(path, ".") || !strcmp(path, "./")) {
if (length >= size)
goto erange;
strcpy(result, base);
/*
* rp points the last char.
*/
rp = result + length - 1;
/*
* remove the last '/'.
*/
if (*rp == '/') {
if (length > 1)
*rp = 0;
} else
rp++;
/* rp point NULL char */
if (*++path == '/') {
/*
* Append '/' to the tail of path name.
*/
*rp++ = '/';
if (rp > endp)
goto erange;
*rp = 0;
}
goto finish;
}
bp = base + length;
if (*(bp - 1) == '/')
--bp;
/*
* up to root.
*/
for (pp = path; *pp && *pp == '.'; ) {
if (!strncmp(pp, "../", 3)) {
pp += 3;
while (bp > base && *--bp != '/')
;
} else if (!strncmp(pp, "./", 2)) {
pp += 2;
} else if (!strncmp(pp, "..\0", 3)) {
pp += 2;
while (bp > base && *--bp != '/')
;
} else
break;
}
/*
* down to leaf.
*/
length = bp - base;
if (length >= size)
goto erange;
strncpy(result, base, length);
rp = result + length;
if (*pp || *(pp - 1) == '/' || length == 0)
*rp++ = '/';
if (rp + strlen(pp) > endp)
goto erange;
strcpy(rp, pp);
finish:
return result;
erange:
errno = ERANGE;
return (NULL);
}

10
lib/libpathconv/tests/Makefile Normal file
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# $FreeBSD$
TAP_TESTS_C+= abs2rel
TAP_TESTS_C+= rel2abs
#LIBADD+= pathconv
#LDADD+= -L .. -lpathconv
LDADD+= ../libpathconv.a
.include <bsd.test.mk>

60
lib/libpathconv/tests/abs2rel.c Normal file
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/*
* Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
* Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/param.h>
#include <errno.h>
#include "../pathconv.h"
int
main(int argc, char *argv[])
{
char result[MAXPATHLEN];
char cwd[MAXPATHLEN];
if (argc < 2) {
fprintf(stderr, "usage: abs2rel path [base]\n");
exit(1);
}
if (argc == 2) {
if (!getcwd(cwd, MAXPATHLEN)) {
fprintf(stderr, "cannot get current directory.\n");
exit(1);
}
} else
strcpy(cwd, argv[2]);
if (abs2rel(argv[1], cwd, result, MAXPATHLEN)) {
printf("%s\n", result);
} else
printf("ERROR\n");
exit(0);
}

59
lib/libpathconv/tests/rel2abs.c Normal file
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/*
* Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
* Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/param.h>
#include <errno.h>
#include "../pathconv.h"
int
main(int argc, char *argv[])
{
char result[MAXPATHLEN];
char cwd[MAXPATHLEN];
if (argc < 2) {
fprintf(stderr, "usage: rel2abs path [base]\n");
exit(1);
}
if (argc == 2) {
if (!getcwd(cwd, MAXPATHLEN)) {
fprintf(stderr, "cannot get current directory.\n");
exit(1);
}
} else
strcpy(cwd, argv[2]);
if (rel2abs(argv[1], cwd, result, MAXPATHLEN)) {
printf("%s\n", result);
} else
printf("ERROR\n");
exit(0);
}

146
lib/libpathconv/tests/test.pl Executable file
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#!/usr/bin/perl
#
# Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
# Copyright (c) 1999 Tama Communications Corporation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
#
# Test script for abs2rel(3) and rel2abs(3).
#
$logfile = 'err';
#
# target base directory result
# --------------------------------------
@abs2rel = (
'. / .',
'a/b/c / a/b/c',
'a/b/c /a a/b/c',
'/a/b/c a ERROR',
);
@rel2abs = (
'. / /',
'./ / /',
'/a/b/c / /a/b/c',
'/a/b/c /a /a/b/c',
'a/b/c a ERROR',
'.. /a /',
'../ /a /',
'../.. /a /',
'../../ /a /',
'../../.. /a /',
'../../../ /a /',
'../b /a /b',
'../b/ /a /b/',
'../../b /a /b',
'../../b/ /a /b/',
'../../../b /a /b',
'../../../b/ /a /b/',
'../b/c /a /b/c',
'../b/c/ /a /b/c/',
'../../b/c /a /b/c',
'../../b/c/ /a /b/c/',
'../../../b/c /a /b/c',
'../../../b/c/ /a /b/c/',
);
@common = (
'/a/b/c /a/b/c .',
'/a/b/c /a/b/ c',
'/a/b/c /a/b c',
'/a/b/c /a/ b/c',
'/a/b/c /a b/c',
'/a/b/c / a/b/c',
'/a/b/c /a/b/c .',
'/a/b/c /a/b/c/ .',
'/a/b/c/ /a/b/c ./',
'/a/b/ /a/b/c ../',
'/a/b /a/b/c ..',
'/a/ /a/b/c ../../',
'/a /a/b/c ../..',
'/ /a/b/c ../../../',
'/a/b/c /a/b/z ../c',
'/a/b/c /a/y/z ../../b/c',
'/a/b/c /x/y/z ../../../a/b/c',
);
print "TEST start ";
open(LOG, ">$logfile") || die("cannot open log file '$logfile'.\n");
$cnt = 0;
$progname = 'abs2rel';
foreach (@abs2rel) {
@d = split;
chop($result = `./$progname $d[0] $d[1]`);
if ($d[2] eq $result) {
print '.';
} else {
print 'X';
print LOG "$progname $d[0] $d[1] -> $result (It should be '$d[2]')\n";
$cnt++;
}
}
foreach (@common) {
@d = split;
chop($result = `./$progname $d[0] $d[1]`);
if ($d[2] eq $result) {
print '.';
} else {
print 'X';
print LOG "$progname $d[0] $d[1] -> $result (It should be '$d[2]')\n";
$cnt++;
}
}
$progname = 'rel2abs';
foreach (@rel2abs) {
@d = split;
chop($result = `./$progname $d[0] $d[1]`);
if ($d[2] eq $result) {
print '.';
} else {
print 'X';
print LOG "$progname $d[0] $d[1] -> $result (It should be '$d[2]')\n";
$cnt++;
}
}
foreach (@common) {
@d = split;
chop($result = `./$progname $d[2] $d[1]`);
if ($d[0] eq $result) {
print '.';
} else {
print 'X';
print LOG "$progname $d[2] $d[1] -> $result (It should be '$d[0]')\n";
$cnt++;
}
}
close(LOG);
if ($cnt == 0) {
print " COMPLETED.\n";
} else {
print " $cnt errors detected.\n";
open(LOG, $logfile) || die("log file not found.\n");
while (<LOG>) {
print;
}
close(LOG);
}