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[perl5.git] / reentr.pl

diff --git a/reentr.pl b/reentr.pl
index c100115..13cf4d1 100644 (file)
--- a/reentr.pl
+++ b/reentr.pl
@@ -5,6 +5,11 @@
 # and optionally also the relevant metaconfig units (-U option).
 # 
 
+BEGIN {
+    # Get function prototypes
+    require 'regen_lib.pl';
+}
+
 use strict;
 use Getopt::Std;
 my %opts;
@@ -35,13 +40,16 @@ my %map = (
 # Example #3: S_CBI   means type func_r(const char*, char*, int)
 
 
+safer_unlink 'reentr.h';
 die "reentr.h: $!" unless open(H, ">reentr.h");
+binmode H;
 select H;
 print <<EOF;
-/*
+/* -*- buffer-read-only: t -*-
+ *
  *    reentr.h
  *
- *    Copyright (C) 2002, 2003, by Larry Wall and others
+ *    Copyright (C) 2002, 2003, 2005, 2006 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -51,7 +59,7 @@ print <<EOF;
  */
 
 #ifndef REENTR_H
-#define REENTR_H 
+#define REENTR_H
 
 #ifdef USE_REENTRANT_API
  
@@ -80,6 +88,17 @@ print <<EOF;
 #   define NETDB_R_OBSOLETE
 #endif
 
+/*
+ * As of OpenBSD 3.7, reentrant functions are now working, they just are
+ * incompatible with everyone else.  To make OpenBSD happy, we have to
+ * memzero out certain structures before calling the functions.
+ */
+#if defined(__OpenBSD__)
+#    define REENTR_MEMZERO(a,b) memzero(a,b),
+#else
+#    define REENTR_MEMZERO(a,b)
+#endif 
+
 #ifdef NETDB_R_OBSOLETE
 #   undef HAS_ENDHOSTENT_R
 #   undef HAS_ENDNETENT_R
@@ -165,6 +184,7 @@ while (<DATA>) { # Read in the protypes.
 
     # If given the -U option open up the metaconfig unit for this function.
     if ($opts{U} && open(U, ">d_${func}_r.U"))  {
+       binmode U;
        select U;
     }
 
@@ -329,7 +349,7 @@ sub pushssif {
 sub pushinitfree {
     my $func = shift;
     push @init, <<EOF;
-       New(31338, PL_reentrant_buffer->_${func}_buffer, PL_reentrant_buffer->_${func}_size, char);
+       Newx(PL_reentrant_buffer->_${func}_buffer, PL_reentrant_buffer->_${func}_size, char);
 EOF
     push @free, <<EOF;
        Safefree(PL_reentrant_buffer->_${func}_buffer);
@@ -577,7 +597,7 @@ EOF
 EOF
            push @init, <<EOF;
 #if   !($D)
-       New(31338, PL_reentrant_buffer->_${genfunc}_buffer, PL_reentrant_buffer->_${genfunc}_size, char);
+       Newx(PL_reentrant_buffer->_${genfunc}_buffer, PL_reentrant_buffer->_${genfunc}_size, char);
 #endif
 EOF
            push @free, <<EOF;
@@ -679,6 +699,13 @@ EOF
                $w = ", $w" if length $v;
            }
            my $call = "${func}_r($v$w)";
+
+            # Must make OpenBSD happy
+            my $memzero = '';
+            if($p =~ /D$/ &&
+                ($genfunc eq 'protoent' || $genfunc eq 'servent')) {
+                $memzero = 'REENTR_MEMZERO(&PL_reentrant_buffer->_' . $genfunc . '_data, sizeof(PL_reentrant_buffer->_' . $genfunc . '_data))';
+            }
            push @wrap, <<EOF;
 #   if !defined($func) && ${FUNC}_R_PROTO == REENTRANT_PROTO_$p
 EOF
@@ -691,7 +718,7 @@ EOF
                    my $rv = $v ? ", $v" : "";
                    if ($r eq 'I') {
                        push @wrap, <<EOF;
-#       define $func($v) ((PL_reentrant_retint = $call)$test ? $true : (((PL_reentrant_retint == ERANGE) || (errno == ERANGE)) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0))
+#       define $func($v) ($memzero(PL_reentrant_retint = $call)$test ? $true : ((PL_reentrant_retint == ERANGE) ? ($seent{$func} *) Perl_reentrant_retry("$func"$rv) : 0))
 EOF
                    } else {
                        push @wrap, <<EOF;
@@ -733,19 +760,23 @@ typedef struct {
  
 #endif
 
+/* ex: set ro: */
 EOF
 
 close(H);
 
 # Prepare to write the reentr.c.
 
+safer_unlink 'reentr.c';
 die "reentr.c: $!" unless open(C, ">reentr.c");
+binmode C;
 select C;
 print <<EOF;
-/*
+/* -*- buffer-read-only: t -*-
+ *
  *    reentr.c
  *
- *    Copyright (C) 2002, 2003, by Larry Wall and others
+ *    Copyright (C) 2002, 2003, 2005, 2006 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -781,7 +812,7 @@ Perl_reentrant_size(pTHX) {
 void
 Perl_reentrant_init(pTHX) {
 #ifdef USE_REENTRANT_API
-       New(31337, PL_reentrant_buffer, 1, REENTR);
+       Newx(PL_reentrant_buffer, 1, REENTR);
        Perl_reentrant_size(aTHX);
 @init
 #endif /* USE_REENTRANT_API */
@@ -1020,10 +1051,13 @@ Perl_reentrant_retry(const char *f, ...)
     }
 
     va_end(ap);
+#else
+    PERL_UNUSED_ARG(f);
 #endif
     return retptr;
 }
 
+/* ex: set ro: */
 EOF
 
 __DATA__