mirror of
https://github.com/Perl/perl5.git
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975 lines
24 KiB
Perl
975 lines
24 KiB
Perl
#!/usr/bin/perl -w
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#
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# Generate the reentr.c and reentr.h,
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# and optionally also the relevant metaconfig units (-U option).
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#
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use strict;
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use Getopt::Std;
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my %opts;
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getopts('U', \%opts);
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my %map = (
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V => "void",
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A => "char*", # as an input argument
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B => "char*", # as an output argument
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C => "const char*", # as a read-only input argument
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I => "int",
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L => "long",
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W => "size_t",
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H => "FILE**",
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E => "int*",
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);
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# (See the definitions after __DATA__.)
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# In func|inc|type|... a "S" means "type*", and a "R" means "type**".
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# (The "types" are often structs, such as "struct passwd".)
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#
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# After the prototypes one can have |X=...|Y=... to define more types.
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# A commonly used extra type is to define D to be equal to "type_data",
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# for example "struct_hostent_data to" go with "struct hostent".
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#
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# Example #1: I_XSBWR means int func_r(X, type, char*, size_t, type**)
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# Example #2: S_SBIE means type func_r(type, char*, int, int*)
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# Example #3: S_CBI means type func_r(const char*, char*, int)
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die "reentr.h: $!" unless open(H, ">reentr.h");
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select H;
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print <<EOF;
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/*
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* reentr.h
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*
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* Copyright (c) 1997-2002, Larry Wall
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
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* This file is built by reentrl.pl from data in reentr.pl.
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*/
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#ifndef REENTR_H
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#define REENTR_H
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#ifdef USE_REENTRANT_API
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/* Deprecations: some platforms have the said reentrant interfaces
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* but they are declared obsolete and are not to be used. Often this
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* means that the platform has threadsafed the interfaces (hopefully).
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* All this is OS version dependent, so we are of course fooling ourselves.
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* If you know of more deprecations on some platforms, please add your own. */
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#ifdef __hpux
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# undef HAS_CRYPT_R
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# undef HAS_DRAND48_R
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# undef HAS_ENDGRENT_R
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# undef HAS_ENDPWENT_R
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# undef HAS_GETGRENT_R
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# undef HAS_GETPWENT_R
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# undef HAS_SETLOCALE_R
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# undef HAS_SRAND48_R
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# undef HAS_STRERROR_R
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# define NETDB_R_OBSOLETE
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#endif
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#if defined(__osf__) && defined(__alpha) /* Tru64 aka Digital UNIX */
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# undef HAS_CRYPT_R
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# undef HAS_STRERROR_R
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# define NETDB_R_OBSOLETE
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#endif
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#ifdef NETDB_R_OBSOLETE
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# undef HAS_ENDHOSTENT_R
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# undef HAS_ENDNETENT_R
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# undef HAS_ENDPROTOENT_R
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# undef HAS_ENDSERVENT_R
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# undef HAS_GETHOSTBYADDR_R
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# undef HAS_GETHOSTBYNAME_R
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# undef HAS_GETHOSTENT_R
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# undef HAS_GETNETBYADDR_R
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# undef HAS_GETNETBYNAME_R
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# undef HAS_GETNETENT_R
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# undef HAS_GETPROTOBYNAME_R
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# undef HAS_GETPROTOBYNUMBER_R
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# undef HAS_GETPROTOENT_R
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# undef HAS_GETSERVBYNAME_R
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# undef HAS_GETSERVBYPORT_R
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# undef HAS_GETSERVENT_R
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# undef HAS_SETHOSTENT_R
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# undef HAS_SETNETENT_R
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# undef HAS_SETPROTOENT_R
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# undef HAS_SETSERVENT_R
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#endif
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#ifdef I_PWD
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# include <pwd.h>
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#endif
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#ifdef I_GRP
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# include <grp.h>
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#endif
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#ifdef I_NETDB
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# include <netdb.h>
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#endif
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#ifdef I_STDLIB
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# include <stdlib.h> /* drand48_data */
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#endif
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#ifdef I_CRYPT
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# ifdef I_CRYPT
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# include <crypt.h>
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# endif
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#endif
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#ifdef HAS_GETSPNAM_R
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# ifdef I_SHADOW
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# include <shadow.h>
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# endif
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#endif
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EOF
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my %seenh;
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my %seena;
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my @seenf;
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my %seenp;
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my %seent;
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my %seens;
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my %seend;
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my %seenu;
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while (<DATA>) {
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next if /^\s+$/;
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chomp;
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my ($f, $h, $t, @p) = split(/\s*\|\s*/, $_, -1);
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my $u;
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($f, $u) = split(' ', $f);
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$seenu{$f} = defined $u ? length $u : 0;
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my $F = uc $f;
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push @seenf, $f;
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my %m = %map;
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if ($t) {
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$m{S} = "$t*";
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$m{R} = "$t**";
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}
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if (@p) {
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while ($p[-1] =~ /=/) {
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my ($k, $v) = ($p[-1] =~ /^([A-Za-z])\s*=\s*(.*)/);
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$m{$k} = $v;
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pop @p;
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}
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}
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if ($opts{U} && open(U, ">d_${f}_r.U")) {
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select U;
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}
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my $prereqs = '';
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my $prereqh = '';
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my $prereqsh = '';
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if ($h ne 'stdio') { # There's no i_stdio.
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$prereqs = "i_$h";
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$prereqh = "$h.h";
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$prereqsh = "\$$prereqs $prereqh";
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}
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if ($opts{U}) {
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print <<EOF;
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?RCS: \$Id: d_${f}_r.U,v $
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?RCS:
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?RCS: Copyright (c) 2002 Jarkko Hietaniemi
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?RCS:
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?RCS: You may distribute under the terms of either the GNU General Public
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?RCS: License or the Artistic License, as specified in the README file.
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?RCS:
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?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
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?RCS:
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?MAKE:d_${f}_r ${f}_r_proto: Inlibc Protochk Hasproto i_systypes i_systime $prereqs usethreads i_pthread
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?MAKE: -pick add \$@ %<
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?S:d_${f}_r:
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?S: This variable conditionally defines the HAS_${F}_R symbol,
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?S: which indicates to the C program that the ${f}_r()
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?S: routine is available.
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?S:.
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?S:${f}_r_proto:
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?S: This variable encodes the prototype of ${f}_r.
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?S:.
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?C:HAS_${F}_R:
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?C: This symbol, if defined, indicates that the ${f}_r routine
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?C: is available to ${f} re-entrantly.
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?C:.
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?C:${F}_R_PROTO:
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?C: This symbol encodes the prototype of ${f}_r.
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?C:.
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?H:#\$d_${f}_r HAS_${F}_R /**/
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?H:#define ${F}_R_PROTO \$${f}_r_proto /**/
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?H:.
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?T:try hdrs d_${f}_r_proto
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?LINT:set d_${f}_r
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?LINT:set ${f}_r_proto
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: see if ${f}_r exists
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set ${f}_r d_${f}_r
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eval \$inlibc
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case "\$d_${f}_r" in
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"\$define")
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EOF
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my $hdrs = "\$i_systypes sys/types.h define stdio.h $prereqsh";
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if ($h eq 'time') {
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$hdrs .= " \$i_systime sys/time.h";
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}
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print <<EOF;
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hdrs="$hdrs"
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case "\$d_${f}_r_proto:\$usethreads" in
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":define") d_${f}_r_proto=define
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set d_${f}_r_proto ${f}_r \$hdrs
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eval \$hasproto ;;
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*) ;;
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esac
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case "\$d_${f}_r_proto" in
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define)
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EOF
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}
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for my $p (@p) {
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my ($r, $a) = ($p =~ /^(.)_(.+)/);
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my $v = join(", ", map { $m{$_} } split '', $a);
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if ($opts{U}) {
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print <<EOF ;
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case "\$${f}_r_proto" in
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''|0) try='$m{$r} ${f}_r($v);'
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./protochk "extern \$try" \$hdrs && ${f}_r_proto=$p ;;
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esac
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EOF
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}
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$seenh{$f}->{$p}++;
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push @{$seena{$f}}, $p;
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$seenp{$p}++;
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$seent{$f} = $t;
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$seens{$f} = $m{S};
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$seend{$f} = $m{D};
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}
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if ($opts{U}) {
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print <<EOF;
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case "\$${f}_r_proto" in
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''|0) d_${f}_r=undef
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${f}_r_proto=0
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echo "Disabling ${f}_r, cannot determine prototype." >&4 ;;
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* ) case "\$${f}_r_proto" in
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REENTRANT_PROTO*) ;;
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*) ${f}_r_proto="REENTRANT_PROTO_\$${f}_r_proto" ;;
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esac
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echo "Prototype: \$try" ;;
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esac
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;;
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*) case "\$usethreads" in
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define) echo "${f}_r has no prototype, not using it." >&4 ;;
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esac
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d_${f}_r=undef
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${f}_r_proto=0
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;;
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esac
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;;
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*) ${f}_r_proto=0
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;;
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esac
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EOF
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close(U);
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}
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}
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close DATA;
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select H;
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{
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my $i = 1;
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for my $p (sort keys %seenp) {
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print "#define REENTRANT_PROTO_${p} ${i}\n";
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$i++;
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}
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}
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sub ifprotomatch {
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my $F = shift;
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join " || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @_;
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}
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my @struct;
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my @size;
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my @init;
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my @free;
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my @wrap;
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my @define;
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sub pushssif {
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push @struct, @_;
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push @size, @_;
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push @init, @_;
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push @free, @_;
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}
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sub pushinitfree {
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my $f = shift;
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push @init, <<EOF;
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New(31338, PL_reentrant_buffer->_${f}_buffer, PL_reentrant_buffer->_${f}_size, char);
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EOF
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push @free, <<EOF;
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Safefree(PL_reentrant_buffer->_${f}_buffer);
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EOF
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}
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sub define {
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my ($n, $p, @F) = @_;
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my @H;
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my $H = uc $F[0];
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push @define, <<EOF;
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/* The @F using \L$n? */
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EOF
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my $G;
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for my $f (@F) {
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my $F = uc $f;
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my $h = "${F}_R_HAS_$n";
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push @H, $h;
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my @h = grep { /$p/ } @{$seena{$f}};
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unless (defined $G) {
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$G = $F;
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$G =~ s/^GET//;
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}
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if (@h) {
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push @define, "#if defined(HAS_${F}_R) && (" . join(" || ", map { "${F}_R_PROTO == REENTRANT_PROTO_$_" } @h) . ")\n";
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push @define, <<EOF;
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# define $h
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#else
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# undef $h
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#endif
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EOF
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}
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}
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push @define, <<EOF;
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/* Any of the @F using \L$n? */
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EOF
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push @define, "#if (" . join(" || ", map { "defined($_)" } @H) . ")\n";
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push @define, <<EOF;
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# define USE_${G}_$n
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#else
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# undef USE_${G}_$n
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#endif
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EOF
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}
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define('BUFFER', 'B',
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qw(getgrent getgrgid getgrnam));
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define('PTR', 'R',
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qw(getgrent getgrgid getgrnam));
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define('PTR', 'R',
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qw(getpwent getpwnam getpwuid));
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define('PTR', 'R',
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qw(getspent getspnam));
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define('FPTR', 'H',
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qw(getgrent getgrgid getgrnam setgrent endgrent));
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define('FPTR', 'H',
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qw(getpwent getpwnam getpwuid setpwent endpwent));
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define('BUFFER', 'B',
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qw(getpwent getpwgid getpwnam));
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define('PTR', 'R',
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qw(gethostent gethostbyaddr gethostbyname));
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define('PTR', 'R',
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qw(getnetent getnetbyaddr getnetbyname));
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define('PTR', 'R',
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qw(getprotoent getprotobyname getprotobynumber));
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define('PTR', 'R',
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qw(getservent getservbyname getservbyport));
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define('BUFFER', 'B',
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qw(gethostent gethostbyaddr gethostbyname));
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define('BUFFER', 'B',
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qw(getnetent getnetbyaddr getnetbyname));
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define('BUFFER', 'B',
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qw(getprotoent getprotobyname getprotobynumber));
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define('BUFFER', 'B',
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qw(getservent getservbyname getservbyport));
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define('ERRNO', 'E',
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qw(gethostent gethostbyaddr gethostbyname));
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define('ERRNO', 'E',
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qw(getnetent getnetbyaddr getnetbyname));
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for my $f (@seenf) {
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my $F = uc $f;
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my $ifdef = "#ifdef HAS_${F}_R\n";
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my $endif = "#endif /* HAS_${F}_R */\n";
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if (exists $seena{$f}) {
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my @p = @{$seena{$f}};
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if ($f =~ /^(asctime|ctime|getlogin|setlocale|strerror|ttyname)$/) {
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pushssif $ifdef;
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push @struct, <<EOF;
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char* _${f}_buffer;
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size_t _${f}_size;
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EOF
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push @size, <<EOF;
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PL_reentrant_buffer->_${f}_size = REENTRANTSMALLSIZE;
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EOF
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pushinitfree $f;
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pushssif $endif;
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}
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elsif ($f =~ /^(crypt)$/) {
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pushssif $ifdef;
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push @struct, <<EOF;
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#if CRYPT_R_PROTO == REENTRANT_PROTO_B_CCD
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$seend{$f} _${f}_data;
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|
#else
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|
$seent{$f} _${f}_struct;
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#endif
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|
EOF
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push @init, <<EOF;
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|
#ifdef __GLIBC__
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PL_reentrant_buffer->_${f}_struct.initialized = 0;
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#endif
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EOF
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pushssif $endif;
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}
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elsif ($f =~ /^(drand48|gmtime|localtime|random)$/) {
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pushssif $ifdef;
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push @struct, <<EOF;
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$seent{$f} _${f}_struct;
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|
EOF
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|
if ($1 eq 'drand48') {
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push @struct, <<EOF;
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|
double _${f}_double;
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|
EOF
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|
}
|
|
pushssif $endif;
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|
}
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|
elsif ($f =~ /^(getgrnam|getpwnam|getspnam)$/) {
|
|
pushssif $ifdef;
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|
my $g = $f;
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|
$g =~ s/nam/ent/g;
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|
$g =~ s/^get//;
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|
my $G = uc $g;
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|
push @struct, <<EOF;
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$seent{$f} _${g}_struct;
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|
char* _${g}_buffer;
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size_t _${g}_size;
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|
EOF
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|
push @struct, <<EOF;
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|
# ifdef USE_${G}_PTR
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|
$seent{$f}* _${g}_ptr;
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# endif
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|
EOF
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if ($g eq 'getspent') {
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push @size, <<EOF;
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PL_reentrant_buffer->_${g}_size = 1024;
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|
EOF
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} else {
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push @struct, <<EOF;
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# ifdef USE_${G}_FPTR
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FILE* _${g}_fptr;
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|
# endif
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|
EOF
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|
push @init, <<EOF;
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|
# ifdef USE_${G}_FPTR
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|
PL_reentrant_buffer->_${g}_fptr = NULL;
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# endif
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|
EOF
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|
my $sc = $g eq 'getgrent' ?
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|
'_SC_GETGR_R_SIZE_MAX' : '_SC_GETPW_R_SIZE_MAX';
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|
my $sz = $g eq 'getgrent' ?
|
|
'_grent_size' : '_pwent_size';
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|
push @size, <<EOF;
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# if defined(HAS_SYSCONF) && defined($sc) && !defined(__GLIBC__)
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|
PL_reentrant_buffer->_${g}_size = sysconf($sc);
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if (PL_reentrant_buffer->$sz == -1)
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|
PL_reentrant_buffer->$sz = REENTRANTUSUALSIZE;
|
|
# else
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|
# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
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|
PL_reentrant_buffer->_${g}_size = SIABUFSIZ;
|
|
# else
|
|
# ifdef __sgi
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|
PL_reentrant_buffer->_${g}_size = BUFSIZ;
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|
# else
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|
PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
|
|
# endif
|
|
# endif
|
|
# endif
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|
EOF
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|
}
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|
pushinitfree $g;
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|
pushssif $endif;
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|
}
|
|
elsif ($f =~ /^(gethostbyname|getnetbyname|getservbyname|getprotobyname)$/) {
|
|
pushssif $ifdef;
|
|
my $g = $f;
|
|
$g =~ s/byname/ent/;
|
|
$g =~ s/^get//;
|
|
my $G = uc $g;
|
|
my $D = ifprotomatch($F, grep {/D/} @p);
|
|
my $d = $seend{$f};
|
|
$d =~ s/\*$//; # snip: we need need the base type.
|
|
push @struct, <<EOF;
|
|
$seent{$f} _${g}_struct;
|
|
# if $D
|
|
$d _${g}_data;
|
|
# else
|
|
char* _${g}_buffer;
|
|
size_t _${g}_size;
|
|
# endif
|
|
# ifdef USE_${G}_PTR
|
|
$seent{$f}* _${g}_ptr;
|
|
# endif
|
|
EOF
|
|
push @struct, <<EOF;
|
|
# ifdef USE_${G}_ERRNO
|
|
int _${g}_errno;
|
|
# endif
|
|
EOF
|
|
push @size, <<EOF;
|
|
#if !($D)
|
|
PL_reentrant_buffer->_${g}_size = REENTRANTUSUALSIZE;
|
|
#endif
|
|
EOF
|
|
push @init, <<EOF;
|
|
#if !($D)
|
|
New(31338, PL_reentrant_buffer->_${g}_buffer, PL_reentrant_buffer->_${g}_size, char);
|
|
#endif
|
|
EOF
|
|
push @free, <<EOF;
|
|
#if !($D)
|
|
Safefree(PL_reentrant_buffer->_${g}_buffer);
|
|
#endif
|
|
EOF
|
|
pushssif $endif;
|
|
}
|
|
elsif ($f =~ /^(readdir|readdir64)$/) {
|
|
pushssif $ifdef;
|
|
my $R = ifprotomatch($F, grep {/R/} @p);
|
|
push @struct, <<EOF;
|
|
$seent{$f}* _${f}_struct;
|
|
size_t _${f}_size;
|
|
# if $R
|
|
$seent{$f}* _${f}_ptr;
|
|
# endif
|
|
EOF
|
|
push @size, <<EOF;
|
|
/* This is the size Solaris recommends.
|
|
* (though we go static, should use pathconf() instead) */
|
|
PL_reentrant_buffer->_${f}_size = sizeof($seent{$f}) + MAXPATHLEN + 1;
|
|
EOF
|
|
push @init, <<EOF;
|
|
PL_reentrant_buffer->_${f}_struct = ($seent{$f}*)safemalloc(PL_reentrant_buffer->_${f}_size);
|
|
EOF
|
|
push @free, <<EOF;
|
|
Safefree(PL_reentrant_buffer->_${f}_struct);
|
|
EOF
|
|
pushssif $endif;
|
|
}
|
|
|
|
push @wrap, $ifdef;
|
|
|
|
push @wrap, <<EOF;
|
|
# undef $f
|
|
EOF
|
|
my @v = 'a'..'z';
|
|
my $v = join(", ", @v[0..$seenu{$f}-1]);
|
|
for my $p (@p) {
|
|
my ($r, $a) = split '_', $p;
|
|
my $test = $r eq 'I' ? ' == 0' : '';
|
|
my $true = 1;
|
|
my $g = $f;
|
|
if ($g =~ /^(?:get|set|end)(pw|gr|host|net|proto|serv|sp)/) {
|
|
$g = "$1ent";
|
|
} elsif ($g eq 'srand48') {
|
|
$g = "drand48";
|
|
}
|
|
my $b = $a;
|
|
my $w = '';
|
|
substr($b, 0, $seenu{$f}) = '';
|
|
if ($b =~ /R/) {
|
|
$true = "PL_reentrant_buffer->_${g}_ptr";
|
|
} elsif ($b =~ /T/ && $f eq 'drand48') {
|
|
$true = "PL_reentrant_buffer->_${g}_double";
|
|
} elsif ($b =~ /S/) {
|
|
if ($f =~ /^readdir/) {
|
|
$true = "PL_reentrant_buffer->_${g}_struct";
|
|
} else {
|
|
$true = "&PL_reentrant_buffer->_${g}_struct";
|
|
}
|
|
} elsif ($b =~ /B/) {
|
|
$true = "PL_reentrant_buffer->_${g}_buffer";
|
|
}
|
|
if (length $b) {
|
|
$w = join ", ",
|
|
map {
|
|
$_ eq 'R' ?
|
|
"&PL_reentrant_buffer->_${g}_ptr" :
|
|
$_ eq 'E' ?
|
|
"&PL_reentrant_buffer->_${g}_errno" :
|
|
$_ eq 'B' ?
|
|
"PL_reentrant_buffer->_${g}_buffer" :
|
|
$_ =~ /^[WI]$/ ?
|
|
"PL_reentrant_buffer->_${g}_size" :
|
|
$_ eq 'H' ?
|
|
"&PL_reentrant_buffer->_${g}_fptr" :
|
|
$_ eq 'D' ?
|
|
"&PL_reentrant_buffer->_${g}_data" :
|
|
$_ eq 'S' ?
|
|
($f =~ /^readdir/ ?
|
|
"PL_reentrant_buffer->_${g}_struct" :
|
|
"&PL_reentrant_buffer->_${g}_struct" ) :
|
|
$_ eq 'T' && $f eq 'drand48' ?
|
|
"&PL_reentrant_buffer->_${g}_double" :
|
|
$_
|
|
} split '', $b;
|
|
$w = ", $w" if length $v;
|
|
}
|
|
my $call = "${f}_r($v$w)";
|
|
$call = "((errno = $call))" if $r eq 'I';
|
|
push @wrap, <<EOF;
|
|
# if !defined($f) && ${F}_R_PROTO == REENTRANT_PROTO_$p
|
|
EOF
|
|
if ($r eq 'V' || $r eq 'B') {
|
|
push @wrap, <<EOF;
|
|
# define $f($v) $call
|
|
EOF
|
|
} else {
|
|
if ($f =~ /^get/) {
|
|
my $rv = $v ? ", $v" : "";
|
|
push @wrap, <<EOF;
|
|
# define $f($v) ($call$test ? $true : (errno == ERANGE ? Perl_reentrant_retry("$f"$rv) : 0))
|
|
EOF
|
|
} else {
|
|
push @wrap, <<EOF;
|
|
# define $f($v) ($call$test ? $true : 0)
|
|
EOF
|
|
}
|
|
}
|
|
push @wrap, <<EOF;
|
|
# endif
|
|
EOF
|
|
}
|
|
|
|
push @wrap, $endif, "\n";
|
|
}
|
|
}
|
|
|
|
local $" = '';
|
|
|
|
print <<EOF;
|
|
|
|
/* Defines for indicating which special features are supported. */
|
|
|
|
@define
|
|
typedef struct {
|
|
@struct
|
|
} REENTR;
|
|
|
|
/* The wrappers. */
|
|
|
|
@wrap
|
|
#endif /* USE_REENTRANT_API */
|
|
|
|
#endif
|
|
|
|
EOF
|
|
|
|
close(H);
|
|
|
|
die "reentr.c: $!" unless open(C, ">reentr.c");
|
|
select C;
|
|
print <<EOF;
|
|
/*
|
|
* reentr.c
|
|
*
|
|
* Copyright (c) 1997-2002, Larry Wall
|
|
*
|
|
* You may distribute under the terms of either the GNU General Public
|
|
* License or the Artistic License, as specified in the README file.
|
|
*
|
|
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
|
|
* This file is built by reentrl.pl from data in reentr.pl.
|
|
*
|
|
* "Saruman," I said, standing away from him, "only one hand at a time can
|
|
* wield the One, and you know that well, so do not trouble to say we!"
|
|
*
|
|
*/
|
|
|
|
#include "EXTERN.h"
|
|
#define PERL_IN_REENTR_C
|
|
#include "perl.h"
|
|
#include "reentr.h"
|
|
|
|
void
|
|
Perl_reentrant_size(pTHX) {
|
|
#ifdef USE_REENTRANT_API
|
|
#define REENTRANTSMALLSIZE 256 /* Make something up. */
|
|
#define REENTRANTUSUALSIZE 4096 /* Make something up. */
|
|
@size
|
|
#endif /* USE_REENTRANT_API */
|
|
}
|
|
|
|
void
|
|
Perl_reentrant_init(pTHX) {
|
|
#ifdef USE_REENTRANT_API
|
|
New(31337, PL_reentrant_buffer, 1, REENTR);
|
|
Perl_reentrant_size(aTHX);
|
|
@init
|
|
#endif /* USE_REENTRANT_API */
|
|
}
|
|
|
|
void
|
|
Perl_reentrant_free(pTHX) {
|
|
#ifdef USE_REENTRANT_API
|
|
@free
|
|
Safefree(PL_reentrant_buffer);
|
|
#endif /* USE_REENTRANT_API */
|
|
}
|
|
|
|
void*
|
|
Perl_reentrant_retry(const char *f, ...)
|
|
{
|
|
dTHX;
|
|
void *retptr = NULL;
|
|
#ifdef USE_REENTRANT_API
|
|
# if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SRVENT_BUFFER)
|
|
void *p0;
|
|
# endif
|
|
# if defined(USE_SERVENT_BUFFER)
|
|
void *p1;
|
|
# endif
|
|
# if defined(USE_HOSTENT_BUFFER)
|
|
size_t asize;
|
|
# endif
|
|
# if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
|
|
int anint;
|
|
# endif
|
|
va_list ap;
|
|
|
|
va_start(ap, f);
|
|
|
|
#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
|
|
|
|
switch (PL_op->op_type) {
|
|
#ifdef USE_HOSTENT_BUFFER
|
|
case OP_GHBYADDR:
|
|
case OP_GHBYNAME:
|
|
case OP_GHOSTENT:
|
|
{
|
|
if (PL_reentrant_buffer->_hostent_size <= REENTRANTHALFMAXSIZE) {
|
|
PL_reentrant_buffer->_hostent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_hostent_buffer,
|
|
PL_reentrant_buffer->_hostent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GHBYADDR:
|
|
p0 = va_arg(ap, void *);
|
|
asize = va_arg(ap, size_t);
|
|
anint = va_arg(ap, int);
|
|
retptr = gethostbyaddr(p0, asize, anint); break;
|
|
case OP_GHBYNAME:
|
|
p0 = va_arg(ap, void *);
|
|
retptr = gethostbyname(p0); break;
|
|
case OP_GHOSTENT:
|
|
retptr = gethostent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef USE_GRENT_BUFFER
|
|
case OP_GGRNAM:
|
|
case OP_GGRGID:
|
|
case OP_GGRENT:
|
|
{
|
|
if (PL_reentrant_buffer->_grent_size <= REENTRANTHALFMAXSIZE) {
|
|
Gid_t gid;
|
|
PL_reentrant_buffer->_grent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_grent_buffer,
|
|
PL_reentrant_buffer->_grent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GGRNAM:
|
|
p0 = va_arg(ap, void *);
|
|
retptr = getgrnam(p0); break;
|
|
case OP_GGRGID:
|
|
gid = va_arg(ap, Gid_t);
|
|
retptr = getgrgid(gid); break;
|
|
case OP_GGRENT:
|
|
retptr = getgrent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef USE_NETENT_BUFFER
|
|
case OP_GNBYADDR:
|
|
case OP_GNBYNAME:
|
|
case OP_GNETENT:
|
|
{
|
|
if (PL_reentrant_buffer->_netent_size <= REENTRANTHALFMAXSIZE) {
|
|
Netdb_net_t net;
|
|
PL_reentrant_buffer->_netent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_netent_buffer,
|
|
PL_reentrant_buffer->_netent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GNBYADDR:
|
|
net = va_arg(ap, Netdb_net_t);
|
|
anint = va_arg(ap, int);
|
|
retptr = getnetbyaddr(net, anint); break;
|
|
case OP_GNBYNAME:
|
|
p0 = va_arg(ap, void *);
|
|
retptr = getnetbyname(p0); break;
|
|
case OP_GNETENT:
|
|
retptr = getnetent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef USE_PWENT_BUFFER
|
|
case OP_GPWNAM:
|
|
case OP_GPWUID:
|
|
case OP_GPWENT:
|
|
{
|
|
if (PL_reentrant_buffer->_pwent_size <= REENTRANTHALFMAXSIZE) {
|
|
Uid_t uid;
|
|
PL_reentrant_buffer->_pwent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_pwent_buffer,
|
|
PL_reentrant_buffer->_pwent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GPWNAM:
|
|
p0 = va_arg(ap, void *);
|
|
retptr = getpwnam(p0); break;
|
|
case OP_GPWUID:
|
|
uid = va_arg(ap, Uid_t);
|
|
retptr = getpwuid(uid); break;
|
|
case OP_GPWENT:
|
|
retptr = getpwent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef USE_PROTOENT_BUFFER
|
|
case OP_GPBYNAME:
|
|
case OP_GPBYNUMBER:
|
|
case OP_GPROTOENT:
|
|
{
|
|
if (PL_reentrant_buffer->_protoent_size <= REENTRANTHALFMAXSIZE) {
|
|
PL_reentrant_buffer->_protoent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_protoent_buffer,
|
|
PL_reentrant_buffer->_protoent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GPBYNAME:
|
|
p0 = va_arg(ap, void *);
|
|
retptr = getprotobyname(p0); break;
|
|
case OP_GPBYNUMBER:
|
|
anint = va_arg(ap, int);
|
|
retptr = getprotobynumber(anint); break;
|
|
case OP_GPROTOENT:
|
|
retptr = getprotoent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef USE_SERVENT_BUFFER
|
|
case OP_GSBYNAME:
|
|
case OP_GSBYPORT:
|
|
case OP_GSERVENT:
|
|
{
|
|
if (PL_reentrant_buffer->_servent_size <= REENTRANTHALFMAXSIZE) {
|
|
PL_reentrant_buffer->_servent_size *= 2;
|
|
Renew(PL_reentrant_buffer->_servent_buffer,
|
|
PL_reentrant_buffer->_servent_size, char);
|
|
switch (PL_op->op_type) {
|
|
case OP_GSBYNAME:
|
|
p0 = va_arg(ap, void *);
|
|
p1 = va_arg(ap, void *);
|
|
retptr = getservbyname(p0, p1); break;
|
|
case OP_GSBYPORT:
|
|
anint = va_arg(ap, int);
|
|
p0 = va_arg(ap, void *);
|
|
retptr = getservbyport(anint, p0); break;
|
|
case OP_GSERVENT:
|
|
retptr = getservent(); break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
/* Not known how to retry, so just fail. */
|
|
break;
|
|
}
|
|
|
|
va_end(ap);
|
|
#endif
|
|
return retptr;
|
|
}
|
|
|
|
EOF
|
|
|
|
__DATA__
|
|
asctime S |time |const struct tm|B_SB|B_SBI|I_SB|I_SBI
|
|
crypt CC |crypt |struct crypt_data|B_CCS|B_CCD|D=CRYPTD*
|
|
ctermid B |stdio | |B_B
|
|
ctime S |time |const time_t |B_SB|B_SBI|I_SB|I_SBI
|
|
drand48 |stdlib |struct drand48_data |I_ST|T=double*
|
|
endgrent |grp | |I_H|V_H
|
|
endhostent |netdb | |I_D|V_D|D=struct hostent_data*
|
|
endnetent |netdb | |I_D|V_D|D=struct netent_data*
|
|
endprotoent |netdb | |I_D|V_D|D=struct protoent_data*
|
|
endpwent |pwd | |I_H|V_H
|
|
endservent |netdb | |I_D|V_D|D=struct servent_data*
|
|
getgrent |grp |struct group |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
|
|
getgrgid T |grp |struct group |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=gid_t
|
|
getgrnam C |grp |struct group |I_CSBWR|I_CSBIR|S_CBI|I_CSBI|S_CSBI
|
|
gethostbyaddr CWI |netdb |struct hostent |I_CWISBWRE|S_CWISBWIE|S_CWISBIE|S_TWISBIE|S_CIISBIE|S_CSBIE|S_TSBIE|I_CWISD|I_CIISD|I_CII|D=struct hostent_data*|T=const void*
|
|
gethostbyname C |netdb |struct hostent |I_CSBWRE|S_CSBIE|I_CSD|D=struct hostent_data*
|
|
gethostent |netdb |struct hostent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct hostent_data*
|
|
getlogin |unistd | |I_BW|I_BI|B_BW|B_BI
|
|
getnetbyaddr LI |netdb |struct netent |I_UISBWRE|I_LISBI|S_TISBI|S_LISBI|I_TISD|I_LISD|I_IISD|D=struct netent_data*|T=in_addr_t|U=unsigned long
|
|
getnetbyname C |netdb |struct netent |I_CSBWRE|I_CSBI|S_CSBI|I_CSD|D=struct netent_data*
|
|
getnetent |netdb |struct netent |I_SBWRE|I_SBIE|S_SBIE|S_SBI|I_SBI|I_SD|D=struct netent_data*
|
|
getprotobyname C|netdb |struct protoent|I_CSBWR|S_CSBI|I_CSD|D=struct protoent_data*
|
|
getprotobynumber I |netdb |struct protoent|I_ISBWR|S_ISBI|I_ISD|D=struct protoent_data*
|
|
getprotoent |netdb |struct protoent|I_SBWR|I_SBI|S_SBI|I_SD|D=struct protoent_data*
|
|
getpwent |pwd |struct passwd |I_SBWR|I_SBIR|S_SBW|S_SBI|I_SBI|I_SBIH
|
|
getpwnam C |pwd |struct passwd |I_CSBWR|I_CSBIR|S_CSBI|I_CSBI
|
|
getpwuid T |pwd |struct passwd |I_TSBWR|I_TSBIR|I_TSBI|S_TSBI|T=uid_t
|
|
getservbyname CC|netdb |struct servent |I_CCSBWR|S_CCSBI|I_CCSD|D=struct servent_data*
|
|
getservbyport IC|netdb |struct servent |I_ICSBWR|S_ICSBI|I_ICSD|D=struct servent_data*
|
|
getservent |netdb |struct servent |I_SBWR|I_SBI|S_SBI|I_SD|D=struct servent_data*
|
|
getspnam C |shadow |struct spwd |I_CSBWR|S_CSBI
|
|
gmtime T |time |struct tm |S_TS|I_TS|T=const time_t*
|
|
localtime T |time |struct tm |S_TS|I_TS|T=const time_t*
|
|
random |stdlib |struct random_data|I_TS|T=int*
|
|
readdir T |dirent |struct dirent |I_TSR|I_TS|T=DIR*
|
|
readdir64 T |dirent |struct dirent64|I_TSR|I_TS|T=DIR*
|
|
setgrent |grp | |I_H|V_H
|
|
sethostent I |netdb | |I_ID|V_ID|D=struct hostent_data*
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setlocale IC |locale | |I_ICBI
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setnetent I |netdb | |I_ID|V_ID|D=struct netent_data*
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setprotoent I |netdb | |I_ID|V_ID|D=struct protoent_data*
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setpwent |pwd | |I_H|V_H
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setservent I |netdb | |I_ID|V_ID|D=struct servent_data*
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srand48 L |stdlib |struct drand48_data |I_LS
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srandom T |stdlib |struct random_data|I_TS|T=unsigned int
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strerror I |string | |I_IBW|I_IBI|B_IBW
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tmpnam B |stdio | |B_B
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ttyname I |unistd | |I_IBW|I_IBI|B_IBI
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