Port to Plan 9

Makefile.am

@@ -13,6 +13,7 @@ endif
 EXTRA_DIST = README.md README.windows VERSION config scripts
 EXTRA_DIST += CMakeLists.txt cmake_export_symbol.cmake cmake_uninstall.cmake.in FindLibreSSL.cmake
 EXTRA_DIST += cert.pem openssl.cnf x509v3.cnf
+EXTRA_DIST += README.plan9 plan9 gen-mkfile.sh mkfile
 
 .PHONY: install_sw
 install_sw: install

README.plan9

@@ -0,0 +1,43 @@
+# Building LibreSSL #
+
+**This is very early version.**
+
+## Prerequisites when building from a Git checkout ##
+
+1. Ensure you have the following packages installed: git
+2. Run `./autogen.rc` to prepare the source tree for building.
+
+## Steps that apply to all builds ##
+
+Before building LibreSSL, You must install latest 9legacy stable patches, and
+four pull-requests for 0intro/plan9-contrib and lufia/plan9.
+
+* https://github.com/0intro/plan9-contrib/pull/6
+* https://github.com/0intro/plan9-contrib/pull/7
+* https://github.com/0intro/plan9-contrib/pull/13
+* https://github.com/lufia/plan9/pull/10
+
+Once you have a source tree, either by downloaded using git and having
+run the `autogen.sh` script above, or by downloading a release distribution from
+an OpenBSD mirror, run these commands to build and install the package on most
+systems:
+
+```sh
+mk
+mk install
+```
+
+# Development
+
+If you catch any problem, you can update patches in plan9 directory.
+For example, to merge a changes for crypto/cpt_err.c into crypto.patch:
+
+ git clean -xf
+ IGNOREPLAN9PATCHES=1 ./autogen.rc
+ mkdir (crypto ssl tls apps)^.orig
+ for(i in crypto ssl tls apps)
+       dircp $i $i.orig
+
+Feel free edit crypto/cpt_err.c, then update a patch:
+
+ ape/diff -uprN -X mkfile crypto.orig crypto >plan9/crypto.patch

autogen.rc

@@ -0,0 +1,30 @@
+#!/bin/rc
+
+flag e +
+rfork ne
+
+ape/psh ./update.sh
+
+for(f in `{ls apps/*/*.c}){
+	sed 's/	\.opt\.([a-zA-Z0-9_]+) = (.*),$/	.opt = { .\1 = \2 },/' $f >/tmp/autogen.$pid
+	cp /tmp/autogen.$pid $f
+}
+for(f in `{grep -l '<openssl/(asn1|ocsp|pkcs12|x509v3)\.h>' */*.c */*/*.c}){
+	awk '
+	{ print }
+	n > 0 { next }
+	/^#include[ \t]+<openssl\/(asn1|ocsp|pkcs12|x509v3)\.h>$/ {
+		print "#include <openssl/asn1t.h>"
+		n++
+	}
+	' $f >/tmp/autogen.$pid
+	cp /tmp/autogen.$pid $f
+}
+rm /tmp/autogen.$pid
+
+cp plan9/apps.mkfile apps/mkfile
+ape/psh ./gen-mkfile.sh lib crypto/Makefile.am
+ape/psh ./gen-mkfile.sh lib ssl/Makefile.am
+ape/psh ./gen-mkfile.sh lib tls/Makefile.am
+ape/psh ./gen-mkfile.sh bin apps/openssl/Makefile.am
+ape/psh ./gen-mkfile.sh include include/Makefile.am

crypto/compat/timegm.c

@@ -59,7 +59,8 @@ static long long __year_to_secs(long long year, int *is_leap)
 
 	int cycles, centuries, leaps, rem;
 
-	if (!is_leap) is_leap = &(int){0};
+	int _is_leap = 0;
+	if (!is_leap) is_leap = &_is_leap;
 	cycles = (year-100) / 400;
 	rem = (year-100) % 400;
 	if (rem < 0) {