Hi,

Yeah, I’m working on a fix, sorry.  I made a last minute change that I thought I
had tested, but apparently hadn’t.

Scott


> On Nov 14, 2020, at 11:43 AM, Gordon Bergling <g...@freebsd.org> wrote:
> 
> Hi Scott,
> 
> this somehow breaks the build.
> 
> ---------------------------------------------------------------------
> ===> lib/msun (obj,all,install)
> /tank/nfs_public/tiny/src/lib/libutil/getlocalbase.c:69:30: error: comparison 
> of integers of different signs: 'size_t' (aka 'unsigned long') and 'ssize_t' 
> (aka 'long') [-Werror,-Wsign-compare]
>        if ((tmplen < 0) || (tmplen >= (ssize_t)pathlen)) {
>                             ~~~~~~ ^  ~~~~~~~~~~~~~~~~
> 1 error generated.
> --- getlocalbase.o ---
> *** [getlocalbase.o] Error code 1
> .....................................................................
> 
> Got this on arm64 with the following src.conf:
> 
> WITH_MALLOC_PRODUCTION=1
> WITH_EXTRA_TCP_STACKS=1
> WITH_BEARSSL=1
> WITH_PIE=1
> WITH_RETPOLINE=1
> 
> --Gordon
> 
> On Sat, Nov 14, 2020 at 05:57:50PM +0000, Scott Long wrote:
>> Author: scottl
>> Date: Sat Nov 14 17:57:50 2020
>> New Revision: 367686
>> URL: https://svnweb.freebsd.org/changeset/base/367686
>> 
>> Log:
>>  Add the library function getlocalbase and its manual page.  This helps to
>>  unify the retrieval of the various ways that the local software base 
>> directory,
>>  typically "/usr/local", is expressed in the system.
>> 
>>  Reviewed by:        se
>>  Differential Revision:      https://reviews.freebsd.org/D27022
>> 
>> Added:
>>  head/lib/libutil/getlocalbase.3   (contents, props changed)
>>  head/lib/libutil/getlocalbase.c   (contents, props changed)
>> Modified:
>>  head/lib/libutil/Makefile
>>  head/lib/libutil/libutil.h
>> 
>> Modified: head/lib/libutil/Makefile
>> ==============================================================================
>> --- head/lib/libutil/Makefile        Sat Nov 14 15:44:28 2020        
>> (r367685)
>> +++ head/lib/libutil/Makefile        Sat Nov 14 17:57:50 2020        
>> (r367686)
>> @@ -12,7 +12,8 @@ PACKAGE=   runtime
>> LIB= util
>> SHLIB_MAJOR= 9
>> 
>> -SRCS=       _secure_path.c auth.c expand_number.c flopen.c fparseln.c 
>> gr_util.c \
>> +SRCS=       _secure_path.c auth.c expand_number.c flopen.c fparseln.c \
>> +    getlocalbase.c  gr_util.c \
>>      hexdump.c humanize_number.c kinfo_getfile.c \
>>      kinfo_getallproc.c kinfo_getproc.c kinfo_getvmmap.c \
>>      kinfo_getvmobject.c kld.c \
>> @@ -30,7 +31,7 @@ CFLAGS+= -DINET6
>> 
>> CFLAGS+= -I${.CURDIR} -I${SRCTOP}/lib/libc/gen/
>> 
>> -MAN+=       expand_number.3 flopen.3 fparseln.3 hexdump.3 \
>> +MAN+=       expand_number.3 flopen.3 fparseln.3 getlocalbase.3 hexdump.3 \
>>      humanize_number.3 kinfo_getallproc.3 kinfo_getfile.3 \
>>      kinfo_getproc.3 kinfo_getvmmap.3 kinfo_getvmobject.3 kld.3 \
>>      login_auth.3 login_cap.3 \
>> 
>> Added: head/lib/libutil/getlocalbase.3
>> ==============================================================================
>> --- /dev/null        00:00:00 1970   (empty, because file is newly added)
>> +++ head/lib/libutil/getlocalbase.3  Sat Nov 14 17:57:50 2020        
>> (r367686)
>> @@ -0,0 +1,110 @@
>> +.\"
>> +.\" SPDX-License-Identifier: BSD-2-Clause-FreeBSD
>> +.\"
>> +.\" Copyright 2020 Scott Long
>> +.\"
>> +.\" 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 Oct 28, 2020
>> +.Dt GETLOCALBASE 3
>> +.Os
>> +.Sh NAME
>> +.Nm getlocalbase
>> +.Nd "return the path to the local software directory"
>> +.Sh LIBRARY
>> +.Lb libutil
>> +.Sh SYNOPSIS
>> +.In libutil.h
>> +.Ft ssize_t
>> +.Fn getlocalbase "char *path" "size_t len"
>> +.Sh DESCRIPTION
>> +The
>> +.Fn getlocalbase
>> +function returns the path to the local software base directory.
>> +Normally this is the
>> +.Pa /usr/local
>> +directory.
>> +First the
>> +.Ev LOCALBASE
>> +environment variable is checked.
>> +If that doesn't exist then the
>> +.Va user.localbase
>> +sysctl is checked.
>> +If that also doesn't exist then the value of the
>> +.Dv _PATH_LOCALBASE
>> +compile-time variable is used.
>> +If that is undefined then the default of
>> +.Pa /usr/local
>> +is used.
>> +.Pp
>> +The
>> +.Fa path
>> +argument points to a caller-supplied buffer to hold the resulting pathname.
>> +The
>> +.Fa len
>> +argument is the length of the caller-supplied buffer.
>> +.Sh IMPLEMENTATION NOTES
>> +Calls to
>> +.Fn getlocalpath
>> +will perform a setugid check on the running binary before checking the
>> +environment.
>> +.Sh RETURN VALUES
>> +If the request completes without error, the size of the string copied into 
>> the
>> +buffer, including the terminating NUL, is returned.
>> +If an error occurred or the buffer was too small to hold the string,
>> +.Fn getlocalbase
>> +returns -1 and sets
>> +.Em errno
>> +to indicate the error condition.
>> +.Sh ENVIRONMENT
>> +The
>> +.Fn getlocalbase
>> +library function retrieves the
>> +.Ev LOCALBASE
>> +environment variable.
>> +.Sh ERRORS
>> +The
>> +.Fn getlocalbase
>> +function will fail and set
>> +.Va errno
>> +for the following conditions:
>> +.Bl -tag -width Er
>> +.It Bq Er EINVAL
>> +One of the passed in parameters is NULL or zero.
>> +.It Bq Er ENOMEM
>> +There isn't enough space in the passed in buffer to hold the pathname 
>> string.
>> +.El
>> +.Sh SEE ALSO
>> +.Xr env 1 ,
>> +.Xr src.conf 5 ,
>> +.Xr sysctl 8
>> +.Sh HISTORY
>> +The
>> +.Nm
>> +library function first appeared in
>> +.Fx 13.0 .
>> +.Sh AUTHORS
>> +This
>> +manual page was written by
>> +.An Scott Long Aq Mt sco...@freebsd.org .
>> 
>> Added: head/lib/libutil/getlocalbase.c
>> ==============================================================================
>> --- /dev/null        00:00:00 1970   (empty, because file is newly added)
>> +++ head/lib/libutil/getlocalbase.c  Sat Nov 14 17:57:50 2020        
>> (r367686)
>> @@ -0,0 +1,75 @@
>> +/*-
>> + * SPDX-License-Identifier: BSD-2-Clause
>> + *
>> + * Copyright 2020 Scott Long <sco...@freebsd.org>
>> + *
>> + * 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 REGENTS 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 REGENTS 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.
>> + */
>> +
>> +#include <sys/cdefs.h>
>> +__FBSDID("$FreeBSD$");
>> +
>> +#include <sys/types.h>
>> +#include <sys/errno.h>
>> +#include <sys/sysctl.h>
>> +#include <stdlib.h>
>> +#include <paths.h>
>> +#include <libutil.h>
>> +#include <string.h>
>> +#include <unistd.h>
>> +
>> +ssize_t
>> +getlocalbase(char *path, size_t pathlen)
>> +{
>> +    size_t tmplen;
>> +    const char *tmppath;
>> +
>> +    if ((pathlen == 0) || (path == NULL)) {
>> +            errno = EINVAL;
>> +            return (-1);
>> +    }
>> +
>> +    tmppath = NULL;
>> +    tmplen = pathlen;
>> +    if (issetugid() == 0)
>> +            tmppath = getenv("LOCALBASE");
>> +
>> +    if ((tmppath == NULL) &&
>> +        (sysctlbyname("user.localbase", path, &tmplen, NULL, 0) == 0)) {
>> +            return (tmplen);
>> +    }
>> +
>> +    if (tmppath == NULL)
>> +#ifdef _PATH_LOCALBASE
>> +            tmppath = _PATH_LOCALBASE;
>> +#else
>> +            tmppath = "/usr/local";
>> +#endif
>> +
>> +    tmplen = strlcpy(path, tmppath, pathlen);
>> +    if ((tmplen < 0) || (tmplen >= (ssize_t)pathlen)) {
>> +            errno = ENOMEM;
>> +            tmplen = -1;
>> +    }
>> +
>> +    return (tmplen);
>> +}
>> 
>> Modified: head/lib/libutil/libutil.h
>> ==============================================================================
>> --- head/lib/libutil/libutil.h       Sat Nov 14 15:44:28 2020        
>> (r367685)
>> +++ head/lib/libutil/libutil.h       Sat Nov 14 17:57:50 2020        
>> (r367686)
>> @@ -98,6 +98,7 @@ int        flopen(const char *_path, int _flags, ...);
>> int  flopenat(int _dirfd, const char *_path, int _flags, ...);
>> int  forkpty(int *_amaster, char *_name,
>>          struct termios *_termp, struct winsize *_winp);
>> +ssize_t     getlocalbase(char *path, size_t pathlen);
>> void hexdump(const void *_ptr, int _length, const char *_hdr, int _flags);
>> int  humanize_number(char *_buf, size_t _len, int64_t _number,
>>          const char *_suffix, int _scale, int _flags);
>> _______________________________________________
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>> https://lists.freebsd.org/mailman/listinfo/svn-src-head
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> 
> -- 

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