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master 489563a166: Update from Gnulib by running admin/merge-gnulib
From: |
Paul Eggert |
Subject: |
master 489563a166: Update from Gnulib by running admin/merge-gnulib |
Date: |
Sat, 24 Dec 2022 02:22:28 -0500 (EST) |
branch: master
commit 489563a1666f54581e83cdf17f551f862966d186
Author: Paul Eggert <eggert@cs.ucla.edu>
Commit: Paul Eggert <eggert@cs.ucla.edu>
Update from Gnulib by running admin/merge-gnulib
---
doc/misc/texinfo.tex | 177 +++++++++++++++++++++++++++++----------------------
lib/file-has-acl.c | 120 +++++++++++++++++++++++++++++++++-
lib/time.in.h | 1 +
m4/gnulib-common.m4 | 57 ++++++++++-------
4 files changed, 256 insertions(+), 99 deletions(-)
diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
index cfc77a84ea..cfe83359f6 100644
--- a/doc/misc/texinfo.tex
+++ b/doc/misc/texinfo.tex
@@ -3,7 +3,7 @@
% Load plain if necessary, i.e., if running under initex.
\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
%
-\def\texinfoversion{2022-11-12.22}
+\def\texinfoversion{2022-12-19.22}
%
% Copyright 1985, 1986, 1988, 1990-2022 Free Software Foundation, Inc.
%
@@ -591,6 +591,9 @@
% @/ allows a line break.
\let\/=\allowbreak
+% @- allows explicit insertion of hyphenation points
+\def\-{\discretionary{\normaldash}{}{}}%
+
% @. is an end-of-sentence period.
\def\.{.\spacefactor=\endofsentencespacefactor\space}
@@ -1537,9 +1540,10 @@ output) for that.)}
\next}
\def\makelink{\addtokens{\toksB}%
{\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
- \def\pdflink#1{%
+ \def\pdflink#1{\pdflinkpage{#1}{#1}}%
+ \def\pdflinkpage#1#2{%
\startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
- \setcolor{\linkcolor}#1\endlink}
+ \setcolor{\linkcolor}#2\endlink}
\def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
\else
% non-pdf mode
@@ -1786,10 +1790,11 @@ output) for that.)}
\next}
\def\makelink{\addtokens{\toksB}%
{\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
- \def\pdflink#1{%
+ \def\pdflink#1{\pdflinkpage{#1}{#1}}%
+ \def\pdflinkpage#1#2{%
\special{pdf:bann << /Border [0 0 0]
/Type /Annot /Subtype /Link /A << /S /GoTo /D (#1) >> >>}%
- \setcolor{\linkcolor}#1\endlink}
+ \setcolor{\linkcolor}#2\endlink}
\def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
%
%
@@ -2134,6 +2139,11 @@ end
\pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}%
}%
\fi\fi
+%
+% This is what gets called when #5 of \setfont is empty.
+\let\cmap\gobble
+%
+% (end of cmaps)
% Set the font macro #1 to the font named \fontprefix#2.
@@ -2149,11 +2159,10 @@ end
\def\setfont#1#2#3#4#5{%
\font#1=\fontprefix#2#3 scaled #4
\csname cmap#5\endcsname#1%
+ \ifx#2\ttshape\hyphenchar#1=-1 \fi
+ \ifx#2\ttbshape\hyphenchar#1=-1 \fi
+ \ifx#2\ttslshape\hyphenchar#1=-1 \fi
}
-% This is what gets called when #5 of \setfont is empty.
-\let\cmap\gobble
-%
-% (end of cmaps)
% Use cm as the default font prefix.
% To specify the font prefix, you must define \fontprefix
@@ -2815,13 +2824,6 @@ end
% @sansserif, explicit sans.
\def\sansserif#1{{\sf #1}}
-% We can't just use \exhyphenpenalty, because that only has effect at
-% the end of a paragraph. Restore normal hyphenation at the end of the
-% group within which \nohyphenation is presumably called.
-%
-\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
-\def\restorehyphenation{\hyphenchar\font = `- }
-
\newif\iffrenchspacing
\frenchspacingfalse
@@ -2890,27 +2892,29 @@ end
% Switch to typewriter.
\tt
%
- % But `\ ' produces the large typewriter interword space.
+ % `\ ' produces the large typewriter interword space.
\def\ {{\spaceskip = 0pt{} }}%
%
- % Turn off hyphenation.
- \nohyphenation
- %
\plainfrenchspacing
#1%
}%
\null % reset spacefactor to 1000
}
-% We *must* turn on hyphenation at `-' and `_' in @code.
-% (But see \codedashfinish below.)
+% This is for LuaTeX: It is not sufficient to disable hyphenation at
+% explicit dashes by setting `\hyphenchar` to -1.
+\def\dashnobreak{%
+ \normaldash
+ \penalty 10000 }
+
+% We must turn on hyphenation at `-' and `_' in @code.
% Otherwise, it is too hard to avoid overfull hboxes
% in the Emacs manual, the Library manual, etc.
+% We explicitly allow hyphenation at these characters
+% using \discretionary.
%
-% Unfortunately, TeX uses one parameter (\hyphenchar) to control
-% both hyphenation at - and hyphenation within words.
-% We must therefore turn them both off (\tclose does that)
-% and arrange explicitly to hyphenate at a dash. -- rms.
+% Hyphenation at - and hyphenation within words was turned off
+% by default for the tt fonts using the \hyphenchar parameter of TeX.
{
\catcode`\-=\active \catcode`\_=\active
\catcode`\'=\active \catcode`\`=\active
@@ -2923,7 +2927,7 @@ end
\let-\codedash
\let_\codeunder
\else
- \let-\normaldash
+ \let-\dashnobreak
\let_\realunder
\fi
% Given -foo (with a single dash), we do not want to allow a break
@@ -3200,7 +3204,7 @@ end
% definition of @key with no lozenge.
%
-\def\key#1{{\setregularquotes \nohyphenation \tt #1}\null}
+\def\key#1{{\setregularquotes \tt #1}\null}
% @clicksequence{File @click{} Open ...}
\def\clicksequence#1{\begingroup #1\endgroup}
@@ -3747,6 +3751,7 @@ $$%
% Open one extra group, as we want to close it in the middle of \Etitlepage.
\begingroup
\parindent=0pt \textfonts
+ \headingsoff
% Leave some space at the very top of the page.
\vglue\titlepagetopglue
% No rule at page bottom unless we print one at the top with @title.
@@ -3774,11 +3779,9 @@ $$%
% If we use the new definition of \page, we always get a blank page
% after the title page, which we certainly don't want.
\oldpage
+ \pageone
\endgroup
%
- % Need this before the \...aftertitlepage checks so that if they are
- % in effect the toc pages will come out with page numbers.
- \HEADINGSon
}
\def\finishtitlepage{%
@@ -3947,7 +3950,6 @@ $$%
}
\def\HEADINGSoff{{\globaldefs=1 \headingsoff}} % global setting
-\HEADINGSoff % it's the default
% When we turn headings on, set the page number to 1.
\def\pageone{
@@ -3971,7 +3973,7 @@ $$%
\pageone
\HEADINGSsinglex
}
-\def\HEADINGSon{\HEADINGSdouble}
+% \def\HEADINGSon{\HEADINGSdouble} % defined by \CHAPPAGon
\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
\let\HEADINGSdoubleafter=\HEADINGSafter
@@ -5616,6 +5618,11 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\newdimen\entryrightmargin
\entryrightmargin=0pt
+% for PDF output, whether to make the text of the entry a link to the page
+% number. set for @contents and @shortcontents where there is only one
+% page number.
+\newif\iflinkentrytext
+
% \entry typesets a paragraph consisting of the text (#1), dot leaders, and
% then page number (#2) flushed to the right margin. It is used for index
% and table of contents entries. The paragraph is indented by \leftskip.
@@ -5642,7 +5649,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
}
\def\entrybreak{\unskip\space\ignorespaces}%
\def\doentry{%
- % Save the text of the entry
+ % Save the text of the entry in \boxA
\global\setbox\boxA=\hbox\bgroup
\bgroup % Instead of the swallowed brace.
\noindent
@@ -5652,12 +5659,21 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% with catcodes occurring.
}
{\catcode`\@=11
+% #1 is the page number
\gdef\finishentry#1{%
- \egroup % end box A
+ \egroup % end \boxA
\dimen@ = \wd\boxA % Length of text of entry
+ % add any leaders and page number to \boxA.
\global\setbox\boxA=\hbox\bgroup
- \unhbox\boxA
- % #1 is the page number.
+ \ifpdforxetex
+ \iflinkentrytext
+ \pdflinkpage{#1}{\unhbox\boxA}%
+ \else
+ \unhbox\boxA
+ \fi
+ \else
+ \unhbox\boxA
+ \fi
%
% Get the width of the page numbers, and only use
% leaders if they are present.
@@ -5676,6 +5692,8 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\fi
\fi
\egroup % end \boxA
+ %
+ % now output
\ifdim\wd\boxB = 0pt
\noindent\unhbox\boxA\par
\nobreak
@@ -6375,7 +6393,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\fi
}
-\parseargdef\setchapternewpage{\csname CHAPPAG#1\endcsname}
+\parseargdef\setchapternewpage{\csname CHAPPAG#1\endcsname\HEADINGSon}
\def\CHAPPAGoff{%
\global\let\contentsalignmacro = \chappager
@@ -6392,7 +6410,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\global\let\pchapsepmacro=\chapoddpage
\global\def\HEADINGSon{\HEADINGSdouble}}
-\CHAPPAGon
+\setchapternewpage on
% \chapmacro - Chapter opening.
%
@@ -6772,6 +6790,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\def\thistitle{}% no title in double-sided headings
% Record where the Roman numerals started.
\ifnum\romancount=0 \global\romancount=\pagecount \fi
+ \linkentrytexttrue
}
% \raggedbottom in plain.tex hardcodes \topskip so override it
@@ -6899,7 +6918,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% Chapters, in the short toc.
% See comments in \dochapentry re vbox and related settings.
\def\shortchapentry#1#2#3#4{%
- \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#4\egroup}%
+ \tocentry{\shortchaplabel{#2}\labelspace #1}{#4}%
}
% Appendices, in the main contents.
@@ -6914,7 +6933,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% Unnumbered chapters.
\def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}}
-\def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}}
+\def\shortunnchapentry#1#2#3#4{\tocentry{#1}{#4}}
% Sections.
\def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}}
@@ -6946,24 +6965,24 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% Move the page numbers slightly to the right
\advance\entryrightmargin by -0.05em
\chapentryfonts
- \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \tocentry{#1}{#2}%
\endgroup
\nobreak\vskip .25\baselineskip plus.1\baselineskip
}
\def\dosecentry#1#2{\begingroup
\secentryfonts \leftskip=\tocindent
- \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \tocentry{#1}{#2}%
\endgroup}
\def\dosubsecentry#1#2{\begingroup
\subsecentryfonts \leftskip=2\tocindent
- \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \tocentry{#1}{#2}%
\endgroup}
\def\dosubsubsecentry#1#2{\begingroup
\subsubsecentryfonts \leftskip=3\tocindent
- \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \tocentry{#1}{#2}%
\endgroup}
% We use the same \entry macro as for the index entries.
@@ -6972,9 +6991,6 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% Space between chapter (or whatever) number and the title.
\def\labelspace{\hskip1em \relax}
-\def\dopageno#1{{\rm #1}}
-\def\doshortpageno#1{{\rm #1}}
-
\def\chapentryfonts{\secfonts \rm}
\def\secentryfonts{\textfonts}
\def\subsecentryfonts{\textfonts}
@@ -7410,7 +7426,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\endgroup
%
\def\setupverb{%
- \tt % easiest (and conventionally used) font for verbatim
+ \tt
\def\par{\leavevmode\endgraf}%
\setcodequotes
\tabeightspaces
@@ -7587,32 +7603,28 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\exdentamount=\defbodyindent
}
-\def\dodefunx#1{%
- % First, check whether we are in the right environment:
- \checkenv#1%
- %
- % As above, allow line break if we have multiple x headers in a row.
- % It's not a great place, though.
- \ifnum\lastpenalty=10002 \penalty3000 \else \defunpenalty=10002 \fi
- %
- % And now, it's time to reuse the body of the original defun:
- \expandafter\gobbledefun#1%
-}
-\def\gobbledefun#1\startdefun{}
+\newtoks\defidx
+\newtoks\deftext
-% \printdefunline \deffnheader{text}
+\def\useindex#1{\defidx={#1}\ignorespaces}
+
+% Called as \printdefunline \deffooheader{text}
%
\def\printdefunline#1#2{%
\begingroup
\plainfrenchspacing
- % call \deffnheader:
+ % call \deffooheader:
#1#2 \endheader
+ % create the index entry
+ \defcharsdefault
+ \edef\temp{\noexpand\doind{\the\defidx}{\the\deftext}}%
+ \temp
% common ending:
\interlinepenalty = 10000
\advance\rightskip by 0pt plus 1fil\relax
\endgraf
\nobreak\vskip -\parskip
- \penalty\defunpenalty % signal to \startdefun and \dodefunx
+ \penalty\defunpenalty % signal to \startdefun and \deffoox
% Some of the @defun-type tags do not enable magic parentheses,
% rendering the following check redundant. But we don't optimize.
\checkparencounts
@@ -7621,7 +7633,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\def\Edefun{\endgraf\medbreak}
-% \makedefun{deffoo}{ (definition of \deffooheader) }
+% \makedefun{deffoo} (\deffooheader parameters) { (\deffooheader expansion) }
%
% Define \deffoo, \deffoox \Edeffoo and \deffooheader.
\def\makedefun#1{%
@@ -7636,8 +7648,18 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\doingtypefnfalse % distinguish typed functions from all else
\parseargusing\activeparens{\printdefunline#3}%
}%
- \def#2{\dodefunx#1}%
- \def#3%
+ \def#2{%
+ % First, check whether we are in the right environment:
+ \checkenv#1%
+ %
+ % As in \startdefun, allow line break if we have multiple x headers
+ % in a row. It's not a great place, though.
+ \ifnum\lastpenalty=10002 \penalty3000 \else \defunpenalty=10002 \fi
+ %
+ \doingtypefnfalse % distinguish typed functions from all else
+ \parseargusing\activeparens{\printdefunline#3}%
+ }%
+ \def#3% definition of \deffooheader follows
}
\newif\ifdoingtypefn % doing typed function?
@@ -7662,18 +7684,23 @@ might help (with 'rm \jobname.?? \jobname.??s')%
\fi\fi
}
+\def\defind#1#2{
+ \defidx={#1}%
+ \deftext={#2}%
+}
+
% Untyped functions:
% @deffn category name args
\makedefun{deffn}#1 #2 #3\endheader{%
- \doind{fn}{\code{#2}}%
+ \defind{fn}{\code{#2}}%
\defname{#1}{}{#2}\magicamp\defunargs{#3\unskip}%
}
% @defop category class name args
\makedefun{defop}#1 {\defopheaderx{#1\ \putwordon}}
\def\defopheaderx#1#2 #3 #4\endheader{%
- \doind{fn}{\code{#3}\space\putwordon\ \code{#2}}%
+ \defind{fn}{\code{#3}\space\putwordon\ \code{#2}}%
\defname{#1\ \code{#2}}{}{#3}\magicamp\defunargs{#4\unskip}%
}
@@ -7681,7 +7708,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% @deftypefn category type name args
\makedefun{deftypefn}#1 #2 #3 #4\endheader{%
- \doind{fn}{\code{#3}}%
+ \defind{fn}{\code{#3}}%
\doingtypefntrue
\defname{#1}{#2}{#3}\defunargs{#4\unskip}%
}
@@ -7689,7 +7716,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% @deftypeop category class type name args
\makedefun{deftypeop}#1 {\deftypeopheaderx{#1\ \putwordon}}
\def\deftypeopheaderx#1#2 #3 #4 #5\endheader{%
- \doind{fn}{\code{#4}\space\putwordon\ \code{#1\ \code{#2}}}%
+ \defind{fn}{\code{#4}\space\putwordon\ \code{#1\ \code{#2}}}%
\doingtypefntrue
\defname{#1\ \code{#2}}{#3}{#4}\defunargs{#5\unskip}%
}
@@ -7698,14 +7725,14 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% @deftypevr category type var args
\makedefun{deftypevr}#1 #2 #3 #4\endheader{%
- \doind{vr}{\code{#3}}%
+ \defind{vr}{\code{#3}}%
\defname{#1}{#2}{#3}\defunargs{#4\unskip}%
}
% @deftypecv category class type var args
\makedefun{deftypecv}#1 {\deftypecvheaderx{#1\ \putwordof}}
\def\deftypecvheaderx#1#2 #3 #4 #5\endheader{%
- \doind{vr}{\code{#4}\space\putwordof\ \code{#2}}%
+ \defind{vr}{\code{#4}\space\putwordof\ \code{#2}}%
\defname{#1\ \code{#2}}{#3}{#4}\defunargs{#5\unskip}%
}
@@ -7722,7 +7749,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
% @deftp category name args
\makedefun{deftp}#1 #2 #3\endheader{%
- \doind{tp}{\code{#2}}%
+ \defind{tp}{\code{#2}}%
\defname{#1}{}{#2}\defunargs{#3\unskip}%
}
@@ -10489,7 +10516,7 @@ directory should work if nowhere else does.}
\DeclareUnicodeCharacter{00AE}{\registeredsymbol{}}%
\DeclareUnicodeCharacter{00AF}{\={ }}%
%
- \DeclareUnicodeCharacter{00B0}{\textdegree}
+ \DeclareUnicodeCharacter{00B0}{\textdegree}%
\DeclareUnicodeCharacter{00B1}{\ensuremath\pm}%
\DeclareUnicodeCharacter{00B2}{$^2$}%
\DeclareUnicodeCharacter{00B3}{$^3$}%
diff --git a/lib/file-has-acl.c b/lib/file-has-acl.c
index e02f0626ad..676523ba82 100644
--- a/lib/file-has-acl.c
+++ b/lib/file-has-acl.c
@@ -29,9 +29,97 @@
#include "acl-internal.h"
-#if GETXATTR_WITH_POSIX_ACLS
+#if USE_ACL && GETXATTR_WITH_POSIX_ACLS
+# include <string.h>
+# include <arpa/inet.h>
# include <sys/xattr.h>
# include <linux/xattr.h>
+# ifndef XATTR_NAME_NFSV4_ACL
+# define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
+# endif
+
+enum {
+ /* ACE4_ACCESS_ALLOWED_ACE_TYPE = 0x00000000, */
+ ACE4_ACCESS_DENIED_ACE_TYPE = 0x00000001,
+ ACE4_IDENTIFIER_GROUP = 0x00000040
+};
+
+/* Return 1 if given ACL in XDR format is non-trivial, 0 if it is trivial.
+ -1 upon failure to determine it. Possibly change errno. Assume that
+ the ACL is valid, except avoid undefined behavior even if invalid.
+
+ See <https://linux.die.net/man/5/nfs4_acl>. The NFSv4 acls are
+ defined in Internet RFC 7530 and as such, every NFSv4 server
+ supporting ACLs should support NFSv4 ACLs (they differ from from
+ POSIX draft ACLs). The ACLs can be obtained via the
+ nfsv4-acl-tools, e.g., the nfs4_getfacl command. Gnulib provides
+ only basic support of NFSv4 ACLs, i.e., recognize trivial vs
+ nontrivial ACLs. */
+
+static int
+acl_nfs4_nontrivial (uint32_t *xattr, ssize_t nbytes)
+{
+ enum { BYTES_PER_NETWORK_UINT = 4};
+
+ /* Grab the number of aces in the acl. */
+ nbytes -= BYTES_PER_NETWORK_UINT;
+ if (nbytes < 0)
+ return -1;
+ uint32_t num_aces = ntohl (*xattr++);
+ if (6 < num_aces)
+ return 1;
+ int ace_found = 0;
+
+ for (int ace_n = 0; ace_n < num_aces; ace_n++)
+ {
+ /* Get the acl type and flag. Skip the mask; it's too risky to
+ test it and it does not seem to be needed. Get the wholen. */
+ nbytes -= 4 * BYTES_PER_NETWORK_UINT;
+ if (nbytes < 0)
+ return -1;
+ uint32_t type = ntohl (xattr[0]);
+ uint32_t flag = ntohl (xattr[1]);
+ uint32_t wholen = ntohl (xattr[3]);
+ xattr += 4;
+ int64_t wholen4 = wholen;
+ wholen4 = ((wholen4 + (BYTES_PER_NETWORK_UINT))
+ & ~ (BYTES_PER_NETWORK_UINT - 1));
+
+ /* Trivial ACLs have only ACE4_ACCESS_ALLOWED_ACE_TYPE or
+ ACE4_ACCESS_DENIED_ACE_TYPE. */
+ if (ACE4_ACCESS_DENIED_ACE_TYPE < type)
+ return 1;
+
+ /* RFC 7530 says FLAG should be 0, but be generous to NetApp and
+ also accept the group flag. */
+ if (flag & ~ACE4_IDENTIFIER_GROUP)
+ return 1;
+
+ /* Get the who string. Check NBYTES - WHOLEN4 before storing
+ into NBYTES, to avoid truncation on conversion. */
+ if (nbytes - wholen4 < 0)
+ return -1;
+ nbytes -= wholen4;
+
+ /* For a trivial ACL, max 6 (typically 3) ACEs, 3 allow, 3 deny.
+ Check that there is at most one ACE of each TYPE and WHO. */
+ int who2
+ = (wholen == 6 && memcmp (xattr, "OWNER@", 6) == 0 ? 0
+ : wholen == 6 && memcmp (xattr, "GROUP@", 6) == 0 ? 2
+ : wholen == 9 && memcmp (xattr, "EVERYONE@", 9) == 0 ? 4
+ : -1);
+ if (who2 < 0)
+ return 1;
+ int ace_found_bit = 1 << (who2 | type);
+ if (ace_found & ace_found_bit)
+ return 1;
+ ace_found |= ace_found_bit;
+
+ xattr = (uint32_t *) ((char *) xattr + wholen4);
+ }
+
+ return 0;
+}
#endif
/* Return 1 if NAME has a nontrivial access control list,
@@ -51,6 +139,7 @@ file_has_acl (char const *name, struct stat const *sb)
# if GETXATTR_WITH_POSIX_ACLS
ssize_t ret;
+ int initial_errno = errno;
ret = getxattr (name, XATTR_NAME_POSIX_ACL_ACCESS, NULL, 0);
if (ret < 0 && errno == ENODATA)
@@ -67,6 +156,35 @@ file_has_acl (char const *name, struct stat const *sb)
return 1;
}
+ if (ret < 0)
+ {
+ /* Check for NFSv4 ACLs. The max length of a trivial
+ ACL is 6 words for owner, 6 for group, 7 for everyone,
+ all times 2 because there are both allow and deny ACEs.
+ There are 6 words for owner because of type, flag, mask,
+ wholen, "OWNER@"+pad and similarly for group; everyone is
+ another word to hold "EVERYONE@". */
+ uint32_t xattr[2 * (6 + 6 + 7)];
+
+ ret = getxattr (name, XATTR_NAME_NFSV4_ACL, xattr, sizeof xattr);
+ if (ret < 0)
+ switch (errno)
+ {
+ case ENODATA: return 0;
+ case ERANGE : return 1; /* ACL must be nontrivial. */
+ }
+ else
+ {
+ /* It looks like a trivial ACL, but investigate further. */
+ ret = acl_nfs4_nontrivial (xattr, ret);
+ if (ret < 0)
+ {
+ errno = EINVAL;
+ return ret;
+ }
+ errno = initial_errno;
+ }
+ }
if (ret < 0)
return - acl_errno_valid (errno);
return ret;
diff --git a/lib/time.in.h b/lib/time.in.h
index 6aa67498f5..aba2eda875 100644
--- a/lib/time.in.h
+++ b/lib/time.in.h
@@ -315,6 +315,7 @@ _GL_CXXALIASWARN (strptime);
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define ctime rpl_ctime
# endif
+_GL_ATTRIBUTE_DEPRECATED
_GL_FUNCDECL_RPL (ctime, char *, (time_t const *__tp)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (ctime, char *, (time_t const *__tp));
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4
index d17cbec58c..8f5cc1617a 100644
--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@@ -105,14 +105,10 @@ AC_DEFUN([gl_COMMON_BODY], [
# define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4)
#endif
-#ifdef __has_c_attribute
-# if ((defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) <= 201710 \
- && _GL_GNUC_PREREQ (4, 6))
-# pragma GCC diagnostic ignored "-Wpedantic"
-# endif
-# define _GL_HAS_C_ATTRIBUTE(attr) __has_c_attribute (__##attr##__)
-#else
-# define _GL_HAS_C_ATTRIBUTE(attr) 0
+/* Disable GCC -Wpedantic if using __has_c_attribute and this is not C23+. */
+#if (defined __has_c_attribute && _GL_GNUC_PREREQ (4, 6) \
+ && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) <= 201710)
+# pragma GCC diagnostic ignored "-Wpedantic"
#endif
]dnl There is no _GL_ATTRIBUTE_ALIGNED; use stdalign's alignas instead.
@@ -202,11 +198,15 @@ AC_DEFUN([gl_COMMON_BODY], [
- enumeration, enumeration item,
- typedef,
in C++ also: namespace, class, template specialization. */
-#if _GL_HAS_C_ATTRIBUTE (deprecated)
-# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]]
-#elif _GL_HAS_ATTRIBUTE (deprecated)
+#ifdef __has_c_attribute
+# if __has_c_attribute (__deprecated__)
+# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]]
+# endif
+#endif
+#if !defined _GL_ATTRIBUTE_DEPRECATED && _GL_HAS_ATTRIBUTE (deprecated)
# define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
-#else
+#endif
+#ifndef _GL_ATTRIBUTE_DEPRECATED
# define _GL_ATTRIBUTE_DEPRECATED
#endif
@@ -240,11 +240,15 @@ AC_DEFUN([gl_COMMON_BODY], [
'default' label. The compiler should not warn in this case. */
/* Applies to: Empty statement (;), inside a 'switch' statement. */
/* Always expands to something. */
-#if _GL_HAS_C_ATTRIBUTE (fallthrough)
-# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]]
-#elif _GL_HAS_ATTRIBUTE (fallthrough)
+#ifdef __has_c_attribute
+# if __has_c_attribute (__fallthrough__)
+# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]]
+# endif
+#endif
+#if !defined _GL_ATTRIBUTE_FALLTHROUGH && _GL_HAS_ATTRIBUTE (fallthrough)
# define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__))
-#else
+#endif
+#ifndef _GL_ATTRIBUTE_FALLTHROUGH
# define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0)
#endif
@@ -308,9 +312,12 @@ AC_DEFUN([gl_COMMON_BODY], [
/* In C++ and C2x, this is spelled [[__maybe_unused__]].
GCC's syntax is __attribute__ ((__unused__)).
clang supports both syntaxes. */
-#if _GL_HAS_C_ATTRIBUTE (maybe_unused)
-# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
-#else
+#ifdef __has_c_attribute
+# if __has_c_attribute (__maybe_unused__)
+# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
+# endif
+#endif
+#ifndef _GL_ATTRIBUTE_MAYBE_UNUSED
# define _GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_UNUSED
#endif
/* Alternative spelling of this macro, for convenience and for
@@ -323,11 +330,15 @@ AC_DEFUN([gl_COMMON_BODY], [
discard the return value. The compiler may warn if the caller does not use
the return value, unless the caller uses something like ignore_value. */
/* Applies to: function, enumeration, class. */
-#if _GL_HAS_C_ATTRIBUTE (nodiscard)
-# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]]
-#elif _GL_HAS_ATTRIBUTE (warn_unused_result)
+#ifdef __has_c_attribute
+# if __has_c_attribute (__nodiscard__)
+# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]]
+# endif
+#endif
+#if !defined _GL_ATTRIBUTE_NODISCARD && _GL_HAS_ATTRIBUTE (warn_unused_result)
# define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__))
-#else
+#endif
+#ifndef _GL_ATTRIBUTE_NODISCARD
# define _GL_ATTRIBUTE_NODISCARD
#endif
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- master 489563a166: Update from Gnulib by running admin/merge-gnulib,
Paul Eggert <=