openssl/util/mkstack.pl
Dr. Stephen Henson 3aceb94b9e Safe stack reorganisation in terms of function casts.
After some messing around this seems to work but needs
a few more tests. Working out the syntax for sk_set_cmp_func()
(cast it to a function that itself returns a function pointer)
was painful :-(

Needs some testing to see what other compilers think of this
syntax.

Also needs similar stuff for ASN1_SET_OF etc etc.
2000-06-16 23:29:26 +00:00

106 lines
3.6 KiB
Prolog
Executable file

#!/usr/local/bin/perl -w
#
# This is a utility that searches out "DECLARE_STACK_OF()"
# declarations in header files, and updates/creates/replaces
# the corresponding macro declarations that follow it. The
# reason is that with "DEBUG_SAFESTACK" defined, each type
# will generate 19 functions, all type-safe variants of the
# base "sk_***" functions for the general STACK type. Without
# DEBUG_SAFESTACK defined, we need to macro define all the
# "type'd sk_##type##_***" functions as mapping directly to
# the standard sk_*** equivalents. As it's not generally
# possible to have macros that generate macros, we need to
# control this from the "outside", here in this script.
#
# Geoff Thorpe, June, 2000 (with massive Perl-hacking
# help from Steve Robb)
my $type_thing;
my $recurse = 0;
my @files = @ARGV;
while (@ARGV) {
my $arg = $ARGV[0];
if($arg eq "-recurse") {
$recurse = 1;
shift @ARGV;
} else {
last;
}
}
if($recurse) {
@source = (<crypto/*.[ch]>, <crypto/*/*.[ch]>, <rsaref/*.[ch]>, <ssl/*.[ch]>);
} else {
@source = @ARGV;
}
foreach $file (@source) {
# After "Configure" has been run, we need to make sure we don't
# overwrite symbollic links with new header files!
next if -l $file;
# Open the .c/.h file for reading
open(IN, "< $file") || die "Can't open $file for reading: $!";
while(<IN>) {
if (/^DECLARE_STACK_OF\(([^)]+)\)/) {
push @stacklst, $1;
}
}
close(IN);
write_defines("crypto/stack/safestack");
unlink("crypto/stack/safestack.h");
rename("crypto/stack/safestack.tmp","crypto/stack/safestack.h");
}
sub write_defines {
my $stackfile = $_[0];
my $inside_block = 0;
open IN, "< $stackfile.h" || die "Can't open input file";
open OUT, "> $stackfile.tmp" || die "Can't open output file";
while(<IN>) {
if (m|^/\* This block of defines is updated by a perl script, please do not touch! \*/|) {
$inside_block = 1;
}
if (m|^/\* End of perl script block, you may now edit :-\) \*/|) {
$inside_block = 0;
} elsif ($inside_block == 0) {
print OUT;
}
next if($inside_block != 1);
print OUT <<EOF;
/* This block of defines is updated by a perl script, please do not touch! */
EOF
foreach $type_thing (@stacklst) {
print OUT <<EOF;
#define sk_${type_thing}_new(a) SKM_sk_new($type_thing, (a))
#define sk_${type_thing}_new_null() SKM_sk_new_null($type_thing)
#define sk_${type_thing}_free(a) SKM_sk_free($type_thing, (a))
#define sk_${type_thing}_num(a) SKM_sk_num($type_thing, (a))
#define sk_${type_thing}_value(a,b) SKM_sk_value($type_thing, (a), (b))
#define sk_${type_thing}_set(a,b,c) SKM_sk_set($type_thing, (a), (b), (c))
#define sk_${type_thing}_zero(a) SKM_sk_zero($type_thing, (a))
#define sk_${type_thing}_push(a,b) SKM_sk_push($type_thing, (a),(b))
#define sk_${type_thing}_unshift(a,b) SKM_sk_unshift($type_thing, (a),(b))
#define sk_${type_thing}_find(a,b) SKM_sk_find($type_thing, (a), (b))
#define sk_${type_thing}_delete(a,b) SKM_sk_delete($type_thing, (a),(b))
#define sk_${type_thing}_delete_ptr(a,b) SKM_sk_delete_ptr($type_thing, (a),(b))
#define sk_${type_thing}_insert(a,b,c) SKM_sk_insert($type_thing, (a),(b),(c))
#define sk_${type_thing}_set_cmp_func(a,b) SKM_sk_set_cmp_func($type_thing, (a),(b))
#define sk_${type_thing}_dup(a) SKM_sk_dup($type_thing, a)
#define sk_${type_thing}_pop_free(a,b) SKM_sk_pop_free($type_thing, (a),(b))
#define sk_${type_thing}_shift(a) SKM_sk_shift($type_thing, (a))
#define sk_${type_thing}_pop(a) SKM_sk_pop($type_thing, (a))
#define sk_${type_thing}_sort(a) SKM_sk_sort($type_thing, (a))
EOF
}
print OUT <<EOF;
/* End of perl script block, you may now edit :-) */
EOF
$inside_block = 2;
}
close OUT;
}