Initial commit

20 files changed, 1470 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..03df4a0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+*.o
+*.a
+*.lo
+*.so
+*.so.*
+mdevd
+mdevd-netlink
+mdevd-coldplug
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..8d69cec
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,6 @@
+Main author:
+  Laurent Bercot <ska-skaware@skarnet.org>
+
+Thanks to:
+  Rob Landley <rob@landley.net>
+  Natanael Copa <ncopa@alpinelinux.org>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..9e2739b
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,13 @@
+Copyright (c) 2017 Laurent Bercot <ska-skaware@skarnet.org>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..ca073f2
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,165 @@
+Build Instructions
+------------------
+
+* Requirements
+  ------------
+
+  - A Linux-based system with a standard C development environment
+  - GNU make version 3.81 or later
+  - skalibs version 2.6.0.0 or later: http://skarnet.org/software/skalibs/
+
+ This software is Linux-specific. It will run on a Linux kernel,
+version 2.6.10 or later.
+
+
+* Standard usage
+  --------------
+
+  ./configure && make && sudo make install
+
+ will work for most users.
+ It will install the binaries in /bin.
+
+ You can strip the binaries and libraries of their extra symbols via
+"make strip" before the "make install" phase. It will shave a few bytes
+off them.
+
+
+* Customization
+  -------------
+
+ You can customize paths via flags given to configure.
+ See ./configure --help for a list of all available configure options.
+
+
+* Environment variables
+  ---------------------
+
+ Controlling a build process via environment variables is a big and
+dangerous hammer. You should try and pass flags to configure instead;
+nevertheless, a few standard environment variables are recognized.
+
+ If the CC environment variable is set, its value will override compiler
+detection by configure. The --host=HOST option will still add a HOST-
+prefix to the value of CC.
+
+ The values of CFLAGS, CPPFLAGS and LDFLAGS will be appended to flags
+auto-detected by configure. To entirely override the flags set by
+configure instead, use make variables.
+
+
+* Make variables
+  --------------
+
+ You can invoke make with a few variables for more configuration.
+
+ CC, CFLAGS, CPPFLAGS, LDFLAGS, LDLIBS, AR, RANLIB, STRIP, INSTALL and
+CROSS_COMPILE can all be overridden on the make command line. This is
+an even bigger hammer than running ./configure with environment
+variables, so it is advised to only do this when it is the only way of
+obtaining the behaviour you want.
+
+ DESTDIR can be given on the "make install" command line in order to
+install to a staging directory.
+
+
+* Shared libraries
+  ----------------
+
+ Software from skarnet.org is small enough that shared libraries are
+generally not worth using. Static linking is simpler and incurs less
+runtime overhead and less points of failure: so by default, shared
+libraries are not built and binaries are linked against the static
+versions of the skarnet.org libraries. Nevertheless, you can:
+  * build shared libraries: --enable-shared
+  * link binaries against shared libraries: --disable-allstatic
+
+
+* Static binaries
+  ---------------
+
+ By default, binaries are linked against static versions of all the
+libraries they depend on, except for the libc. You can enforce
+linking against the static libc with --enable-static-libc.
+
+ Be aware that the GNU libc behaves badly with static linking and
+produces huge executables, which is why it is not the default.
+Other libcs are better suited to static linking, for instance
+musl: http://musl-libc.org/
+
+
+* Cross-compilation
+  -----------------
+
+ skarnet.org packages centralize all the difficulty of
+cross-compilation in one place: skalibs. Once you have
+cross-compiled skalibs, the rest is easy.
+
+ * Use the --host=HOST option to configure, HOST being the triplet
+for your target.
+ * Make sure your cross-toolchain binaries (i.e. prefixed with HOST-)
+are accessible via your PATH environment variable.
+ * Make sure to use the correct version of skalibs for your target,
+and the correct sysdeps directory, making use of the
+--with-include, --with-lib, --with-dynlib and --with-sysdeps
+options as necessary.
+
+
+* The slashpackage convention
+  ---------------------------
+
+ The slashpackage convention (http://cr.yp.to/slashpackage.html)
+is a package installation scheme that provides a few guarantees
+over other conventions such as the FHS, for instance fixed
+absolute pathnames. skarnet.org packages support it: use the
+--enable-slashpackage option to configure, or
+--enable-slashpackage=DIR for a prefixed DIR/package tree.
+This option will activate slashpackage support during the build
+and set slashpackage-compatible installation directories.
+If $package_home is the home of the package, defined as
+DIR/package/$category/$package-$version with the variables
+read from the package/info file, then:
+
+  --dynlibdir is set to $package_home/library.so
+  --bindir is set to $package_home/command
+  --sbindir is also set to $package_home/command (slashpackage
+differentiates root-only binaries by their Unix rights, not their
+location in the filesystem)
+  --libexecdir is also set to $package_home/command (slashpackage
+does not need a specific directory for internal binaries)
+  --libdir is set to $package_home/library
+  --includedir is set to $package_home/include
+
+ --prefix is pretty much ignored when you use --enable-slashpackage.
+You should probably not use both --enable-slashpackage and --prefix.
+
+ When using slashpackage, two additional Makefile targets are
+available after "make install":
+ - "make update" changes the default version of the software to the
+freshly installed one. (This is useful when you have several installed
+versions of the same software, which slashpackage supports.)
+ - "make -L global-links" adds links from /command and /library.so to the
+default version of the binaries and shared libraries. The "-L" option to
+make is necessary because targets are symbolic links, and the default make
+behaviour is to check the pointed file's timestamp and not the symlink's
+timestamp.
+
+
+* Absolute pathnames
+  ------------------
+
+ You may want to use fixed absolute pathnames even if you're not
+following the slashpackage convention: for instance, the Nix packaging
+system prefers calling binaries with immutable paths rather than rely on
+PATH resolution. If you are in that case, use the --enable-absolute-paths
+option to configure. This will ensure that programs calling binaries from
+this package will call them with their full installation path (in bindir)
+without relying on a PATH search.
+
+
+* Out-of-tree builds
+  ------------------
+
+ skarnet.org packages do not support out-of-tree builds. They
+are small, so it does not cost much to duplicate the entire
+source tree if parallel builds are needed.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..259d624
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,147 @@
+#
+# This Makefile requires GNU make.
+#
+# Do not make changes here.
+# Use the included .mak files.
+#
+
+it: all
+
+make_need := 3.81
+ifeq "" "$(strip $(filter $(make_need), $(firstword $(sort $(make_need) $(MAKE_VERSION)))))"
+fail := $(error Your make ($(MAKE_VERSION)) is too old. You need $(make_need) or newer)
+endif
+
+CC = $(error Please use ./configure first)
+
+STATIC_LIBS :=
+SHARED_LIBS :=
+INTERNAL_LIBS :=
+EXTRA_TARGETS :=
+LIB_DEFS :=
+
+define library_definition
+LIB$(firstword $(subst =, ,$(1))) := lib$(lastword $(subst =, ,$(1))).$(if $(DO_ALLSTATIC),a,so).xyzzy
+ifdef DO_SHARED
+SHARED_LIBS += lib$(lastword $(subst =, ,$(1))).so.xyzzy
+endif
+ifdef DO_STATIC
+STATIC_LIBS += lib$(lastword $(subst =, ,$(1))).a.xyzzy
+endif
+endef
+
+-include config.mak
+include package/targets.mak
+
+$(foreach var,$(LIB_DEFS),$(eval $(call library_definition,$(var))))
+
+include package/deps.mak
+
+version_m := $(basename $(version))
+version_M := $(basename $(version_m))
+version_l := $(basename $(version_M))
+CPPFLAGS_ALL := $(CPPFLAGS_AUTO) $(CPPFLAGS)
+CFLAGS_ALL := $(CFLAGS_AUTO) $(CFLAGS)
+CFLAGS_SHARED := -fPIC
+LDFLAGS_ALL := $(LDFLAGS_AUTO) $(LDFLAGS)
+REALCC = $(CROSS_COMPILE)$(CC)
+AR := $(CROSS_COMPILE)ar
+RANLIB := $(CROSS_COMPILE)ranlib
+STRIP := $(CROSS_COMPILE)strip
+INSTALL := ./tools/install.sh
+
+ALL_BINS := $(LIBEXEC_TARGETS) $(BIN_TARGETS)
+ALL_LIBS := $(SHARED_LIBS) $(STATIC_LIBS) $(INTERNAL_LIBS)
+ALL_INCLUDES := $(wildcard src/include/$(package)/*.h)
+
+all: $(ALL_LIBS) $(ALL_BINS) $(ALL_INCLUDES)
+
+clean:
+	@exec rm -f $(ALL_LIBS) $(ALL_BINS) $(wildcard src/*/*.o src/*/*.lo) $(EXTRA_TARGETS)
+
+distclean: clean
+	@exec rm -f config.mak src/include/$(package)/config.h
+
+tgz: distclean
+	@. package/info && \
+	rm -rf /tmp/$$package-$$version && \
+	cp -a . /tmp/$$package-$$version && \
+	cd /tmp && \
+	tar -zpcv --owner=0 --group=0 --numeric-owner --exclude=.git* -f /tmp/$$package-$$version.tar.gz $$package-$$version && \
+	exec rm -rf /tmp/$$package-$$version
+
+strip: $(ALL_LIBS) $(ALL_BINS)
+ifneq ($(strip $(STATIC_LIBS)),)
+	exec $(STRIP) -x -R .note -R .comment -R .note.GNU-stack $(STATIC_LIBS)
+endif
+ifneq ($(strip $(ALL_BINS)$(SHARED_LIBS)),)
+	exec $(STRIP) -R .note -R .comment -R .note.GNU-stack $(ALL_BINS) $(SHARED_LIBS)
+endif
+
+install: install-dynlib install-libexec install-bin install-lib install-include
+install-dynlib: $(SHARED_LIBS:lib%.so.xyzzy=$(DESTDIR)$(dynlibdir)/lib%.so)
+install-libexec: $(LIBEXEC_TARGETS:%=$(DESTDIR)$(libexecdir)/%)
+install-bin: $(BIN_TARGETS:%=$(DESTDIR)$(bindir)/%)
+install-lib: $(STATIC_LIBS:lib%.a.xyzzy=$(DESTDIR)$(libdir)/lib%.a)
+install-include: $(ALL_INCLUDES:src/include/$(package)/%.h=$(DESTDIR)$(includedir)/$(package)/%.h)
+install-data: $(ALL_DATA:src/etc/%=$(DESTDIR)$(datadir)/%)
+
+ifneq ($(exthome),)
+
+$(DESTDIR)$(exthome): $(DESTDIR)$(home)
+	exec $(INSTALL) -l $(notdir $(home)) $(DESTDIR)$(exthome)
+
+update: $(DESTDIR)$(exthome)
+
+global-links: $(DESTDIR)$(exthome) $(SHARED_LIBS:lib%.so.xyzzy=$(DESTDIR)$(sproot)/library.so/lib%.so.$(version_M)) $(BIN_TARGETS:%=$(DESTDIR)$(sproot)/command/%)
+
+$(DESTDIR)$(sproot)/command/%: $(DESTDIR)$(home)/command/%
+	exec $(INSTALL) -D -l ..$(subst $(sproot),,$(exthome))/command/$(<F) $@
+
+$(DESTDIR)$(sproot)/library.so/lib%.so.$(version_M): $(DESTDIR)$(dynlibdir)/lib%.so.$(version_M)
+	exec $(INSTALL) -D -l ..$(subst $(sproot),,$(exthome))/library.so/$(<F) $@
+
+.PHONY: update global-links
+
+endif
+
+$(DESTDIR)$(datadir)/%: src/etc/%
+	exec $(INSTALL) -D -m 644 $< $@
+
+$(DESTDIR)$(dynlibdir)/lib%.so: lib%.so.xyzzy
+	$(INSTALL) -D -m 755 $< $@.$(version) && \
+	$(INSTALL) -l $(@F).$(version) $@.$(version_m) && \
+	$(INSTALL) -l $(@F).$(version_m) $@.$(version_M) && \
+	exec $(INSTALL) -l $(@F).$(version_M) $@
+
+$(DESTDIR)$(libexecdir)/% $(DESTDIR)$(bindir)/%: % package/modes
+	exec $(INSTALL) -D -m 600 $< $@
+	grep -- ^$(@F) < package/modes | { read name mode owner && \
+	if [ x$$owner != x ] ; then chown -- $$owner $@ ; fi && \
+	chmod $$mode $@ ; }
+
+$(DESTDIR)$(libdir)/lib%.a: lib%.a.xyzzy
+	exec $(INSTALL) -D -m 644 $< $@
+
+$(DESTDIR)$(includedir)/$(package)/%.h: src/include/$(package)/%.h
+	exec $(INSTALL) -D -m 644 $< $@
+
+%.o: %.c
+	exec $(REALCC) $(CPPFLAGS_ALL) $(CFLAGS_ALL) -c -o $@ $<
+
+%.lo: %.c
+	exec $(REALCC) $(CPPFLAGS_ALL) $(CFLAGS_ALL) $(CFLAGS_SHARED) -c -o $@ $<
+
+$(ALL_BINS):
+	exec $(REALCC) -o $@ $(CFLAGS_ALL) $(LDFLAGS_ALL) $(LDFLAGS_NOSHARED) $^ $(EXTRA_LIBS) $(LDLIBS)
+
+lib%.a.xyzzy:
+	exec $(AR) rc $@ $^
+	exec $(RANLIB) $@
+
+lib%.so.xyzzy:
+	exec $(REALCC) -o $@ $(CFLAGS_ALL) $(CFLAGS_SHARED) $(LDFLAGS_ALL) $(LDFLAGS_SHARED) -Wl,-soname,$(patsubst lib%.so.xyzzy,lib%.so.$(version_M),$@) $^ $(EXTRA_LIBS) $(LDLIBS)
+
+.PHONY: it all clean distclean tgz strip install install-dynlib install-bin install-lib install-include install-data
+
+.DELETE_ON_ERROR:
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..78f3327
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,7 @@
+Changelog for mdevd.
+
+
+In 0.0.1.0
+----------
+
+ - Initial release.
diff --git a/README b/README
new file mode 100644
index 0000000..f0f478e
--- /dev/null
+++ b/README
@@ -0,0 +1,26 @@
+mdevd - a mdev-compatible hotplug manager daemon
+------------------------------------------------
+
+ mdevd is a daemon managing kernel hotplug events, similarly to udevd.
+ It uses the same configuration file as mdev, which is a hotplug
+manager integrated in the Busybox suite of tools. However, mdev
+needs to be registered as a hotplug manager and the kernel forks
+an instance of mdev for every event; by contrast, mdevd is a daemon
+and does not fork.
+
+ See http://skarnet.org/software/mdevd/ for details.
+
+
+* Installation
+  ------------
+
+ See the INSTALL file.
+
+
+* Contact information
+  -------------------
+
+ Laurent Bercot <ska-skaware at skarnet.org>
+
+ Please use the <skaware at list.skarnet.org> mailing-list for
+questions about mdevd.
diff --git a/configure b/configure
new file mode 100755
index 0000000..a5654da
--- /dev/null
+++ b/configure
@@ -0,0 +1,446 @@
+#!/bin/sh
+
+. package/info
+
+usage () {
+cat <<EOF
+Usage: $0 [OPTION]... [TARGET]
+
+Defaults for the options are specified in brackets.
+
+System types:
+  --target=TARGET               configure to run on target TARGET [detected]
+  --host=TARGET                 same as --target
+
+Installation directories:
+  --prefix=PREFIX               main installation prefix [/]
+  --exec-prefix=EPREFIX         installation prefix for executable files [PREFIX]
+
+Fine tuning of the installation directories:
+  --dynlibdir=DIR               shared library files [PREFIX/lib]
+  --bindir=BINDIR               user executables [EPREFIX/bin]
+  --libexecdir=DIR              package-scoped executables [EPREFIX/libexec]
+  --libdir=DIR                  static library files [PREFIX/lib/$package]
+  --includedir=DIR              C header files [PREFIX/include]
+  --shebangdir=DIR              absolute path for #! invocations [BINDIR]
+
+ If no --prefix option is given, by default libdir (but not dynlibdir) will be
+ /usr/lib/$package, and includedir will be /usr/include.
+
+Dependencies:
+  --with-sysdeps=DIR            use sysdeps in DIR [PREFIX/lib/skalibs/sysdeps]
+  --with-include=DIR            add DIR to the list of searched directories for headers
+  --with-lib=DIR                add DIR to the list of searched directories for static libraries
+  --with-dynlib=DIR             add DIR to the list of searched directories for shared libraries
+
+ If no --prefix option is given, by default sysdeps will be fetched from
+ /usr/lib/skalibs/sysdeps.
+
+Optional features:
+  --enable-shared               build shared libraries [disabled]
+  --disable-static              do not build static libraries [enabled]
+  --disable-allstatic           do not prefer linking against static libraries [enabled]
+  --enable-static-libc          make entirely static binaries [disabled]
+  --enable-slashpackage[=ROOT]  assume /package installation at ROOT [disabled]
+  --enable-absolute-paths       do not rely on PATH to access this package's binaries,
+                                  hardcode absolute BINDIR/foobar paths instead [disabled]
+
+EOF
+exit 0
+}
+
+# Helper functions
+
+# If your system does not have printf, you can comment this, but it is
+# generally not a good idea to use echo.
+# See http://www.etalabs.net/sh_tricks.html
+echo () {
+  IFS=" "
+  printf %s\\n "$*"
+}
+
+quote () {
+  tr '\n' ' ' <<EOF | grep '^[-[:alnum:]_=,./:]* $' >/dev/null 2>&1 && { echo "$1" ; return 0 ; }
+$1
+EOF
+  echo "$1" | sed -e "s/'/'\\\\''/g" -e "1s/^/'/" -e "\$s/\$/'/" -e "s#^'\([-[:alnum:]_,./:]*\)=\(.*\)\$#\1='\2#" -e "s|\*/|* /|g"
+}
+
+fail () {
+  echo "$*"
+  exit 1
+}
+
+fnmatch () {
+  eval "case \"\$2\" in $1) return 0 ;; *) return 1 ;; esac"
+}
+
+cmdexists () {
+  type "$1" >/dev/null 2>&1
+}
+
+trycc () {
+  test -z "$CC_AUTO" && cmdexists "$1" && CC_AUTO="$*"
+}
+
+stripdir () {
+  while eval "fnmatch '*/' \"\${$1}\"" ; do
+    eval "$1=\${$1%/}"
+  done
+}
+
+tryflag () {
+  echo "checking whether compiler accepts $2 ..."
+  echo "typedef int x;" > "$tmpc"
+  if $CC_AUTO $CPPFLAGS_AUTO $CPPFLAGS $CPPFLAGS_POST $CFLAGS_AUTO $CFLAGS $CFLAGS_POST "$2" -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+    echo "  ... yes"
+    eval "$1=\"\${$1} \$2\""
+    eval "$1=\${$1# }"
+    return 0
+  else
+    echo "  ... no"
+    return 1
+  fi
+}
+
+tryldflag () {
+  echo "checking whether linker accepts $2 ..."
+  echo "typedef int x;" > "$tmpc"
+  if $CC_AUTO $CFLAGS_AUTO $CFLAGS $CFLAGS_POST $LDFLAGS_AUTO $LDFLAGS $LDFLAGS_POST -nostdlib "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+    echo "  ... yes"
+    eval "$1=\"\${$1} \$2\""
+    eval "$1=\${$1# }"
+    return 0
+  else
+    echo "  ... no"
+    return 1
+  fi
+}
+
+
+# Actual script
+
+CC_AUTO=
+CPPFLAGS_AUTO="-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -iquote src/include-local -Isrc/include"
+CPPFLAGS_POST="$CPPFLAGS"
+CPPFLAGS=
+CFLAGS_AUTO="-pipe -Wall"
+CFLAGS_POST="$CFLAGS"
+CFLAGS=-O2
+LDFLAGS_AUTO=
+LDFLAGS_POST="$LDFLAGS"
+LDFLAGS=
+LDFLAGS_NOSHARED=
+LDFLAGS_SHARED=-shared
+prefix=
+exec_prefix='$prefix'
+dynlibdir='$prefix/lib'
+libexecdir='$exec_prefix/libexec'
+bindir='$exec_prefix/bin'
+libdir='$prefix/lib/$package'
+includedir='$prefix/include'
+shebangdir='$bindir'
+shebangisdefault=true
+sysdeps='$prefix/lib/skalibs/sysdeps'
+manualsysdeps=false
+shared=false
+static=true
+slashpackage=false
+abspath=false
+sproot=
+home=
+exthome=
+allstatic=true
+evenmorestatic=false
+addincpath=''
+addlibspath=''
+addlibdpath=''
+vpaths=''
+vpathd=''
+build=
+
+for arg ; do
+  case "$arg" in
+    --help) usage ;;
+    --prefix=*) prefix=${arg#*=} ;;
+    --exec-prefix=*) exec_prefix=${arg#*=} ;;
+    --dynlibdir=*) dynlibdir=${arg#*=} ;;
+    --libexecdir=*) libexecdir=${arg#*=} ;;
+    --bindir=*) bindir=${arg#*=} ;;
+    --libdir=*) libdir=${arg#*=} ;;
+    --includedir=*) includedir=${arg#*=} ;;
+    --shebangdir=*) shebangisdefault=false ; shebangdir=${arg#*=} ;;
+    --with-sysdeps=*) sysdeps=${arg#*=} manualsysdeps=true ;;
+    --with-include=*) var=${arg#*=} ; stripdir var ; addincpath="$addincpath -I$var" ;;
+    --with-lib=*) var=${arg#*=} ; stripdir var ; addlibspath="$addlibspath -L$var" ; vpaths="$vpaths $var" ;;
+    --with-dynlib=*) var=${arg#*=} ; stripdir var ; addlibdpath="$addlibdpath -L$var" ; vpathd="$vpathd $var" ;;
+    --enable-shared|--enable-shared=yes) shared=true ;;
+    --disable-shared|--enable-shared=no) shared=false ;;
+    --enable-static|--enable-static=yes) static=true ;;
+    --disable-static|--enable-static=no) static=false ;;
+    --enable-allstatic|--enable-allstatic=yes) allstatic=true ;;
+    --disable-allstatic|--enable-allstatic=no) allstatic=false ; evenmorestatic=false ;;
+    --enable-static-libc|--enable-static-libc=yes) allstatic=true ; evenmorestatic=true ;;
+    --disable-static-libc|--enable-static-libc=no) evenmorestatic=false ;;
+    --enable-slashpackage=*) sproot=${arg#*=} ; slashpackage=true ; ;;
+    --enable-slashpackage) sproot= ; slashpackage=true ;;
+    --disable-slashpackage) sproot= ; slashpackage=false ;;
+    --enable-absolute-paths|--enable-absolute-paths=yes) abspath=true ;;
+    --disable-absolute-paths|--enable-absolute-paths=no) abspath=false ;;
+    --enable-*|--disable-*|--with-*|--without-*|--*dir=*) ;;
+    --host=*|--target=*) target=${arg#*=} ;;
+    --build=*) build=${arg#*=} ;;
+    -* ) echo "$0: unknown option $arg" ;;
+    *=*) ;;
+    *) target=$arg ;;
+  esac
+done
+
+# Add /usr in the default default case
+if test -z "$prefix" ; then
+  if test "$libdir" = '$prefix/lib/$package' ; then
+    libdir=/usr/lib/$package
+  fi
+  if test "$includedir" = '$prefix/include' ; then
+    includedir=/usr/include
+  fi
+  if test "$sysdeps" = '$prefix/lib/skalibs/sysdeps' ; then
+    sysdeps=/usr/lib/skalibs/sysdeps
+  fi
+fi
+
+# Expand installation directories
+stripdir prefix
+for i in exec_prefix dynlibdir libexecdir bindir libdir includedir shebangdir sysdeps sproot ; do
+  eval tmp=\${$i}
+  eval $i=$tmp
+  stripdir $i
+done
+
+# Get usable temp filenames
+i=0
+set -C
+while : ; do
+  i=$(($i+1))
+  tmpc="./tmp-configure-$$-$PPID-$i.c"
+  tmpe="./tmp-configure-$$-$PPID-$i.tmp"
+  2>|/dev/null > "$tmpc" && break
+  2>|/dev/null > "$tmpe" && break
+  test "$i" -gt 50 && fail "$0: cannot create temporary files"
+done
+set +C
+trap 'rm -f "$tmpc" "$tmpe"' EXIT ABRT INT QUIT TERM HUP
+
+# Set slashpackage values
+if $slashpackage ; then
+  home=${sproot}/package/${category}/${package}-${version}
+  exthome=${sproot}/package/${category}/${package}
+  if $manualsysdeps ; then
+    :
+  else
+    sysdeps=${sproot}/package/prog/skalibs/sysdeps
+  fi
+  extbinprefix=${exthome}/command
+  dynlibdir=${home}/library.so
+  bindir=${home}/command
+  libdir=${home}/library
+  libexecdir=$bindir
+  includedir=${home}/include
+  if $shebangisdefault ; then
+    shebangdir=${extbinprefix}
+  fi
+  while read dep ; do
+    addincpath="$addincpath -I${sproot}${dep}/include"
+    vpaths="$vpaths ${sproot}${dep}/library"
+    addlibspath="$addlibspath -L${sproot}${dep}/library"
+    vpathd="$vpathd ${sproot}${dep}/library.so"
+    addlibdpath="$addlibdpath -L${sproot}${dep}/library.so"
+  done < package/deps-build
+fi
+
+# Find a C compiler to use
+if test -n "$target" && test x${build} != x${target} ; then
+  cross=${target}-
+else
+  cross=
+fi
+echo "checking for C compiler..."
+trycc ${cross}${CC}
+trycc ${cross}gcc
+trycc ${cross}clang
+trycc ${cross}cc
+test -n "$CC_AUTO" || { echo "$0: cannot find a C compiler" ; exit 1 ; }
+echo "  ... $CC_AUTO"
+echo "checking whether C compiler works... "
+echo "typedef int x;" > "$tmpc"
+if $CC_AUTO $CPPFLAGS_AUTO $CPPFLAGS $CPPFLAGS_POST $CFLAGS_AUTO $CFLAGS $CFLAGS_POST -c -o /dev/null "$tmpc" 2>"$tmpe" ; then
+  echo "  ... yes"
+else
+  echo "  ... no. Compiler output follows:"
+  cat < "$tmpe"
+  exit 1
+fi
+
+echo "checking target system type..."
+if test -z "$target" ; then
+  if test -n "$build" ; then
+    target=$build ;
+  else
+    target=$($CC_AUTO -dumpmachine 2>/dev/null) || target=unknown
+  fi
+fi
+echo "  ... $target"
+if test ! -d $sysdeps || test ! -f $sysdeps/target ; then
+  echo "$0: error: $sysdeps is not a valid sysdeps directory"
+  exit 1
+fi
+if [ "x$target" != "x$(cat $sysdeps/target)" ] ; then
+  echo "$0: error: target $target does not match the contents of $sysdeps/target"
+  exit 1
+fi
+
+spawn_lib=$(cat $sysdeps/spawn.lib)
+socket_lib=$(cat $sysdeps/socket.lib)
+sysclock_lib=$(cat $sysdeps/sysclock.lib)
+tainnow_lib=$(cat $sysdeps/tainnow.lib)
+timer_lib=$(cat $sysdeps/timer.lib)
+util_lib=$(cat $sysdeps/util.lib)
+
+tryflag CFLAGS_AUTO -std=c99
+tryflag CFLAGS -fomit-frame-pointer
+tryflag CFLAGS_AUTO -fno-exceptions
+tryflag CFLAGS_AUTO -fno-unwind-tables
+tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
+tryflag CFLAGS_AUTO -Wa,--noexecstack
+tryflag CFLAGS -fno-stack-protector
+tryflag CPPFLAGS_AUTO -Werror=implicit-function-declaration
+tryflag CPPFLAGS_AUTO -Werror=implicit-int
+tryflag CPPFLAGS_AUTO -Werror=pointer-sign
+tryflag CPPFLAGS_AUTO -Werror=pointer-arith
+tryflag CFLAGS_AUTO -ffunction-sections
+tryflag CFLAGS_AUTO -fdata-sections
+
+tryldflag LDFLAGS_AUTO -Wl,--sort-section=alignment
+tryldflag LDFLAGS_AUTO -Wl,--sort-common
+
+CPPFLAGS_AUTO="${CPPFLAGS_AUTO}${addincpath}"
+
+if $evenmorestatic ; then
+  LDFLAGS_NOSHARED=-static
+fi
+
+if $shared ; then
+  tryldflag LDFLAGS -Wl,--hash-style=both
+fi
+
+LDFLAGS_SHARED="${LDFLAGS_SHARED}${addlibdpath}"
+
+if $allstatic ; then
+  LDFLAGS_NOSHARED="${LDFLAGS_NOSHARED}${addlibspath}"
+  tryldflag LDFLAGS_NOSHARED -Wl,--gc-sections
+else
+  LDFLAGS_NOSHARED="${LDFLAGS_NOSHARED}${addlibdpath}"
+fi
+
+if test -z "$vpaths" ; then
+  while read dep ; do
+    base=$(basename $dep) ;
+    vpaths="$vpaths /usr/lib/$base"
+    addlibspath="$addlibspath -L/usr/lib/$base"
+  done < package/deps-build  
+fi
+
+echo "creating config.mak..."
+cmdline=$(quote "$0")
+for i ; do cmdline="$cmdline $(quote "$i")" ; done
+exec 3>&1 1>config.mak
+cat << EOF
+# This file was generated by:
+# $cmdline
+# Any changes made here will be lost if configure is re-run.
+
+target := $target
+package := $package
+prefix := $prefix
+exec_prefix := $exec_prefix
+dynlibdir := $dynlibdir
+libexecdir := $libexecdir
+bindir := $bindir
+libdir := $libdir
+includedir := $includedir
+sysdeps := $sysdeps
+slashpackage := $slashpackage
+sproot := $sproot
+version := $version
+home := $home
+exthome := $exthome
+SPAWN_LIB := ${spawn_lib}
+SOCKET_LIB := ${socket_lib}
+SYSCLOCK_LIB := ${sysclock_lib}
+TAINNOW_LIB := ${tainnow_lib}
+TIMER_LIB := ${timer_lib}
+UTIL_LIB := ${util_lib}
+
+CC := ${CC_AUTO##${cross}}
+CPPFLAGS_AUTO := $CPPFLAGS_AUTO
+CPPFLAGS := $CPPFLAGS $CPPFLAGS_POST
+CFLAGS_AUTO := $CFLAGS_AUTO
+CFLAGS := $CFLAGS $CFLAGS_POST
+LDFLAGS_AUTO := $LDFLAGS_AUTO
+LDFLAGS := $LDFLAGS $LDFLAGS_POST
+LDFLAGS_SHARED := $LDFLAGS_SHARED
+LDFLAGS_NOSHARED := $LDFLAGS_NOSHARED
+CROSS_COMPILE := $cross
+
+vpath lib%.a$vpaths
+vpath lib%.so$vpathd
+EOF
+if $allstatic ; then
+  echo ".LIBPATTERNS := lib%.a"
+  echo "DO_ALLSTATIC := 1"
+else
+  echo ".LIBPATTERNS := lib%.so"
+fi
+if $static ; then
+  echo "DO_STATIC := 1"
+else
+  echo "DO_STATIC :="
+fi
+if $shared ; then
+  echo "DO_SHARED := 1"
+else
+  echo "DO_SHARED :="
+fi
+
+exec 1>&3 3>&-
+echo "  ... done."
+
+echo "creating src/include/${package}/config.h..."
+mkdir -p -m 0755 src/include/${package}
+exec 3>&1 1> src/include/${package}/config.h
+cat <<EOF
+/* ISC license. */
+
+/* Generated by: $cmdline */
+
+#ifndef ${package_macro_name}_CONFIG_H
+#define ${package_macro_name}_CONFIG_H
+
+#define ${package_macro_name}_VERSION "$version"
+EOF
+if $slashpackage ; then
+  echo "#define ${package_macro_name}_BINPREFIX \"$bindir/\""
+  echo "#define ${package_macro_name}_EXTBINPREFIX \"$extbinprefix/\""
+elif $abspath ; then
+  echo "#define ${package_macro_name}_BINPREFIX \"$bindir/\""
+  echo "#define ${package_macro_name}_EXTBINPREFIX \"$bindir/\""
+else
+  echo "#define ${package_macro_name}_BINPREFIX \"\""
+  echo "#define ${package_macro_name}_EXTBINPREFIX \"\""
+fi
+echo "#define ${package_macro_name}_LIBEXECPREFIX \"$libexecdir/\""
+echo "#define ${package_macro_name}_SHEBANGPREFIX \"$shebangdir/\""
+echo
+echo "#endif"
+exec 1>&3 3>&-
+echo "  ... done."
diff --git a/doc/index.html b/doc/index.html
new file mode 100644
index 0000000..91c01d3
--- /dev/null
+++ b/doc/index.html
@@ -0,0 +1,115 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>mdevd - A mdev-compatible Linux hotplug manager daemon</title>
+    <meta name="Description" content="mdevd - a mdev-compatible Linux hotplug manager daemon" />
+    <meta name="Keywords" content="mdevd mdev udevd udev Linux kernel hotplug event uevent administration root laurent bercot ska skarnet" />
+    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="//skarnet.org/software/">Software</a><br />
+<a href="//skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> mdevd </h1>
+
+<h2> What is it&nbsp;? </h2>
+
+<p>
+ mdevd is a small daemon managing kernel hotplug events, similarly to udevd.
+</p>
+
+<p>
+ It uses the same configuration file as
+<a href="https://git.busybox.net/busybox/plain/docs/mdev.txt">mdev</a>,
+which is a hotplug manager integrated in the
+<a href="https://busybox.net/">Busybox</a> suite of tools.
+However, mdev needs to be registered in
+<tt>/proc/sys/kernel/hotplug</tt>, and the kernel forks
+an instance of mdev for every event; by contrast, mdevd is a daemon
+and does not fork.
+</p>
+
+<p>
+ The point of mdevd is to provide a drop-in replacement to mdev
+that does not fork, so it can handle large influxes of events
+at boot time without a performance drop. mdevd is designed to be
+entirely compatible with advanced mdev usage such as
+<a href="https://github.com/slashbeast/mdev-like-a-boss">mdev-like-a-boss</a>.
+</p>
+
+<hr />
+
+<h2> Installation </h2>
+
+<h3> Requirements </h3>
+
+<ul>
+ <li> A Linux-based system with a standard C development environment.
+The Linux kernel must be 2.6.10 or later. </li>
+ <li> GNU make, version 3.81 or later </li>
+ <li> <a href="//skarnet.org/software/skalibs/">skalibs</a> version
+2.6.0.0 or later. It's a build-time requirement. It's also a run-time
+requirement if you link against the shared version of the skalibs
+library. </li>
+</ul>
+
+<h3> Licensing </h3>
+
+<p>
+ mdevd is free software. It is available under the
+<a href="http://opensource.org/licenses/ISC">ISC license</a>.
+</p>
+
+<h3> Download </h3>
+
+<ul>
+ <li> The current released version of mdevd is
+<a href="mdevd-0.0.1.0.tar.gz">0.0.1.0</a>. </li>
+ <li> Alternatively, you can checkout a copy of the
+<a href="//git.skarnet.org/cgi-bin/cgit.cgi/mdevd/">mdevd
+git repository</a>:
+<pre> git clone git://git.skarnet.org/mdevd </pre> </li>
+ <li> There's also a
+<a href="https://github.com/skarnet/mdevd">GitHub mirror</a>
+of the mdevd git repository. </li>
+</ul>
+
+<h3> Compilation </h3>
+
+<ul>
+ <li> See the enclosed INSTALL file for installation details. </li>
+</ul>
+
+<h3> Upgrade notes </h3>
+
+<ul>
+ <li> <a href="upgrade.html">This page</a> lists the differences to be aware of between
+the previous versions of mdevd and the current one. </li>
+</ul>
+
+<hr />
+
+<h2> Reference </h2>
+
+<h3> Commands </h3>
+
+<ul>
+<li><a href="mdevd.html">The <tt>mdevd</tt> program</a></li>
+<li><a href="mdevd-netlink.html">The <tt>mdevd-netlink</tt> program</a></li>
+<li><a href="mdevd-coldplug.html">The <tt>mdevd-coldplug</tt> program</a></li>
+</ul>
+
+<h2> Related resources </h2>
+
+<ul>
+ <li> <tt>mdevd</tt> is discussed on the
+<a href="//skarnet.org/lists.html#skaware">skaware</a> mailing-list. </li>
+</ul>
+
+</body>
+</html>
diff --git a/doc/mdevd-coldplug.html b/doc/mdevd-coldplug.html
new file mode 100644
index 0000000..8355df3
--- /dev/null
+++ b/doc/mdevd-coldplug.html
@@ -0,0 +1,74 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>mdevd: the mdevd-coldplug program</title>
+    <meta name="Description" content="mdevd: the mdevd-coldplug program" />
+    <meta name="Keywords" content="mdevd linux administration root utilities devd mdev-s uevent netlink coldplug boot" />
+    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="index.html">mdevd</a><br />
+<a href="//skarnet.org/software/">Software</a><br />
+<a href="//skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> The <tt>mdevd-coldplug</tt> program </h1>
+
+<p>
+<tt>mdevd-coldplug</tt> performs a <em>coldplug</em>: it scans
+<tt>/sys</tt> for all registered devices an uevent manager would
+want to perform actions on, and generates uevents for all these
+devices.
+</p>
+
+<h2> Interface </h2>
+
+<pre>
+     mdevd-coldplug [ -s <em>slashsys</em> ]
+</pre>
+
+<ul>
+ <li> mdevd-coldplug scans <tt>/sys</tt> for devices. </li>
+ <li> For every suitable device it finds, it generates an
+uevent and writes it to its stdout, using the same format
+as <a href="mdevd-netlink.html">mdevd-netlink</a>. </li>
+ <li> It exits when it has finished scanning. </li>
+</ul>
+
+<p>
+ This implies that the <tt>mdevd-coldplug | mdevd</tt> command line
+will function as a coldplug manager, just like <tt>mdev -s</tt>.
+</p>
+
+<h2> Options </h2>
+
+<ul>
+ <li> <tt>-s</tt>&nbsp;<em>slashsys</em>&nbsp;: assume the sysfs
+pseudo-filesystem is mounted on <em>slashsys</em>. Default is <tt>/sys</tt>. </li>
+</ul>
+
+<h2> Exit codes </h2>
+
+<ul>
+ <li> 0: success </li>
+ <li> 111: system call failed </li>
+</ul>
+
+<h2> Notes </h2>
+
+<ul>
+ <li> mdevd-coldplug is a short-lived program, just like
+<tt>mdev -s</tt>. </li>
+ <li> Unlike <tt>mdev -s</tt>, however, mdevd-coldplug does
+not act on the uevents it generates. It simply prints them.
+This allows for easy debugging. </li>
+ <li> To act on the uevents, simply pipe the output of
+<tt>mdevd-coldplug</tt> into <a href="mdevd.html">mdevd</a>. </li>
+</ul>
+
+</body>
+</html>
diff --git a/doc/mdevd-netlink.html b/doc/mdevd-netlink.html
new file mode 100644
index 0000000..9747f13
--- /dev/null
+++ b/doc/mdevd-netlink.html
@@ -0,0 +1,123 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>mdevd: the mdevd-netlink program</title>
+    <meta name="Description" content="mdevd: the mdevd-netlink program" />
+    <meta name="Keywords" content="mdevd linux administration root utilities devd mdev udev s6-uevent-listener uevent netlink" />
+    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="index.html">mdevd</a><br />
+<a href="//skarnet.org/software/">Software</a><br />
+<a href="//skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> The <tt>mdevd-netlink</tt> program </h1>
+
+<p>
+<tt>mdevd-netlink</tt> listens to the netlink interface for uevents
+(also called "hotplug" or "udev" events), and writes those uevents to
+its standard output, using a simple format.
+</p>
+
+<p>
+<a href="mdevd.html">mdevd</a> expects uevents in the same
+format mdevd-netlink writes them. So the
+<tt>mdevd-netlink | mdevd</tt> command line will function as
+a daemon reading uevents from the netlink and handling them.
+</p>
+
+<h2> Interface </h2>
+
+<pre>
+     mdevd-netlink [ -d notif ] [ -v <em>verbosity</em> ] [ -b kbufsz ]
+</pre>
+
+<ul>
+ <li> mdevd-netlink binds to the netlink interface and listens for
+hotplug events, as the <em>udevd</em> program does. </li>
+ <li> It writes event information to its stdout. The output contains
+null characters, so a terminal will not display them correctly. To
+properly use mdevd-netlink, it should be piped into a handler
+program such as <a href="mdevd.html">mdevd</a>. </li>
+ <li> mdevd-netlink is a long-lived program.
+When it receives a SIGTERM, it stops listening to hotplug events;
+it will exit as soon as it has flushed its event queue to stdout. </li>
+</ul>
+
+<h2> Options </h2>
+
+<ul>
+ <li> <tt>-d</tt>&nbsp;<em>notif</em>&nbsp;: when ready (actually
+listening to the netlink), write a newline to file descriptor <em>notif</em>
+then close it. This allows mdevd-netlink to use the
+<a href="//skarnet.org/software/s6/notifywhenup.html">s6 mechanism to
+notify readiness</a>. <em>notif</em> cannot be lesser than 3. If this
+option is not given, no readiness notification is sent. </li>
+ <li> <tt>-v</tt>&nbsp;<em>verbosity</em>&nbsp;: be more or less verbose.
+Default verbosity is 1. 0 will only print fatal error messages, 3 will
+print warnings every time the netlink interface sends something
+unexpected. </li>
+ <li> <tt>-b</tt>&nbsp;<em>kbufsz</em>&nbsp;: try and reserve a kernel buffer of
+<em>kbufsz</em> bytes for the netlink queue. Too large a buffer wastes kernel memory;
+too small a buffer risks losing events. The default is 65536 (which is on
+the large side). </li>
+</ul>
+
+<h2> Protocol </h2>
+
+<ul>
+ <li> An event is a series of null-terminated strings as they are sent by
+the kernel to the netlink; mdevd-netlink adds a final empty string
+(i.e. an additional null character) to mark the end of the series. </li>
+ <li> The first string is a short description of the event; it normally
+contains the string "@/". Other strings after the first are of the form
+"VARIABLE=value", and describe the environment which a hotplug helper
+for the event (registered in <tt>/proc/sys/kernel/hotplug</tt>) would be
+spawned with. </li>
+ <li> Example (newlines added for clarity): <pre>
+add@/class/input/input9/mouse2\0
+ACTION=add\0
+DEVPATH=/class/input/input9/mouse2\0
+SUBSYSTEM=input\0
+SEQNUM=106\0
+PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.1/usb2/2­2/2­2:1.0
+PHYSDEVBUS=usb\0
+PHYSDEVDRIVER=usbhid\0
+MAJOR=13\0
+MINOR=34\0
+\0 </pre> </li>
+</ul>
+
+<h2> Notes </h2>
+
+<ul>
+ <li> mdevd-netlink is a daemon; it should be run under a proper supervision system such
+as <a href="//skarnet.org/software/s6/">s6</a>. </li>
+<li> If you are running mdevd-netlink, the program you pipe its
+output into should be the only program handling uevents; that means
+that <tt>/proc/sys/kernel/hotplug</tt> should be empty. </li>
+<li> The <tt>mdevd-netlink | mdevd</tt> command line is a quick
+way of running a uevent manager, but there are ways to improve it:
+ <ul>
+  <li> Using the
+<a href="//skarnet.org/software/execline/">execline</a> scripting
+language, the <tt>pipeline { mdevd-netlink } mdevd</tt> command
+line will avoid leaving a shell around. </li>
+  <li> The best way to use mdevd-netlink and mdevd is with a
+supervision system:
+under <a href="//skarnet.org/software/s6/">s6</a> or
+<a href="//skarnet.org/software/s6-rc/">s6-rc</a>, write a service
+pipeline where <tt>mdevd-netlink</tt> is a producer and
+<tt>mdevd</tt> is a consumer. This setup has the advantage, among
+others, that you can restart the netlink listener and the event handler
+separately. </li>
+ </ul> </li>
+</ul>
+
+</body>
+</html>
diff --git a/doc/mdevd.html b/doc/mdevd.html
new file mode 100644
index 0000000..b5b8a36
--- /dev/null
+++ b/doc/mdevd.html
@@ -0,0 +1,130 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>mdevd: the mdevd program</title>
+    <meta name="Description" content="mdevd: the mdevd program" />
+    <meta name="Keywords" content="mdevd linux administration root utilities devd mdev uevent netlink hotplug manager" />
+    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="index.html">mdevd</a><br />
+<a href="//skarnet.org/software/">Software</a><br />
+<a href="//skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> The <tt>mdevd</tt> program </h1>
+
+<p>
+<tt>mdevd</tt> is an uevent manager. It reads a series of
+uevents on its stdin; for every uevent it reads, it performs
+actions according to its configuration file. Actions can
+be inserting a kernel module, creating or modifying device
+entries in <tt>/dev</tt>, etc.
+</p>
+
+<p>
+ <tt>mdevd</tt>'s configuration file uses the exact same
+format as
+<a href="https://git.busybox.net/busybox/plain/docs/mdev.txt">mdev</a>.
+The differences between mdevd and mdev are:
+</p>
+
+<ul>
+ <li> mdev needs to be registered as a hotplug manager and the
+kernel spawns an instance of mdev per uevent; for every uevent,
+mdev has to parse its configuration file. By contrast, there
+is only one instance of mdevd, reading a series of uevents and
+performing actions without forking; the configuration file is
+read and parsed only once. </li>
+ <li> mdevd reads uevents on its stdin. It is not suitable as
+a hotplug manager, and it does not connect to the netlink itself
+either. It is meant to be used in conjunction with
+<a href="mdevd-netlink.html">mdevd-netlink</a>, which reads
+uevents from the netlink, or with
+<a href="mdevd-coldplug.html">mdevd-coldplug</a>, which generates
+coldplug uevents. </li>
+</ul>
+
+<h2> Interface </h2>
+
+<pre>
+     mdevd [ -v <em>verbosity</em> ] [ -f <em>conffile</em> ] [ -n ] [ -s <em>slashsys</em> ] [ -d <em>slashdev</em> ] [ -F <em>fwbase</em> ]
+</pre>
+
+<ul>
+ <li> mdevd reads and parses its configuration file <tt>/etc/mdev.conf</tt>. </li>
+ <li> It then reads its stdin, waiting for uevents.
+ <li> It exits when it has finished scanning. </li>
+</ul>
+
+<h2> Exit codes </h2>
+
+<ul>
+ <li> 0: EOF read on mdevd's stdin </li>
+ <li> 1: received an invalid event </li>
+ <li> 100: wrong usage </li>
+ <li> 111: system call failed </li>
+</ul>
+
+<h2> Signals </h2>
+
+<p>
+ mdevd reacts to the following signals:
+</p>
+
+<ul>
+ <li> SIGHUP: re-read the configuration file </li>
+</ul>
+
+<h2> Options </h2>
+
+<ul>
+ <li> <tt>-v</tt>&nbsp;<em>verbosity</em>&nbsp;: be more or less verbose.
+Default verbosity is 1. 0 will only print fatal error messages, 3 or more
+is seriously verbose debugging. </li>
+ <li> <tt>-n</tt>&nbsp;: dry run. mdevd will not create or delete
+device nodes, and it will not spawn commands. Instead, it will print to stdout
+the commands it would have spawned. </li>
+ <li> <tt>-f</tt>&nbsp;<em>conffile</em>&nbsp;: read the configuration
+file from <em>conffile</em>. Default is <tt>/etc/mdev.conf</tt>. </li>
+ <li> <tt>-s</tt>&nbsp;<em>slashsys</em>&nbsp;: assume the sysfs
+pseudo-filesystem is mounted on <em>slashsys</em>. Default is <tt>/sys</tt>. </li>
+ <li> <tt>-d</tt>&nbsp;<em>slashdev</em>&nbsp;: assume the device nodes
+are to be found in  <em>slashdev</em>. Default is <tt>/dev</tt>. </li>
+ <li> <tt>-F</tt>&nbsp;<em>fwbase</em>&nbsp;: assume the firmware files, if any,
+are to be found in  <em>fwbase</em>. Default is <tt>/lib/firmware</tt>. </li>
+</ul>
+
+<h2> Configuration file </h2>
+
+<p>
+ mdevd uses mdev's configuration file format.
+A good <tt>mdev.conf</tt> example is available
+<a href="https://github.com/slashbeast/mdev-like-a-boss/blob/master/mdev.conf">here.</a>
+</p>
+
+<p>
+ If mdevd cannot find its configuration file, it will use a simple, basic default
+configuration where it can create device nodes as root or delete them, and does
+nothing else.
+</p>
+
+<h2> Notes </h2>
+
+<ul>
+ <li> Strictly speaking, mdevd is a short-lived program: it has
+a normal exit condition, which is when it receives EOF on its stdin.
+That allows it to work as a coldplug manager when paired with
+<a href="mdevd-coldplug.html">mdevd-coldplug</a>. </li>
+ <li> However, when paired with <a href="mdevd-netlink.html">mdevd-netlink</a>,
+it acts as a daemon, because mdev-netlink normally never exits until
+the end of the machine lifetime and never closes its stdout, so
+mdevd's stdin never receives EOF. </li>
+</ul>
+
+</body>
+</html>
diff --git a/doc/upgrade.html b/doc/upgrade.html
new file mode 100644
index 0000000..06c1654
--- /dev/null
+++ b/doc/upgrade.html
@@ -0,0 +1,28 @@
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>mdevd: how to upgrade</title>
+    <meta name="Description" content="mdevd: how to upgrade" />
+    <meta name="Keywords" content="mdevd installation upgrade" />
+    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="index.html">mdevd</a><br />
+<a href="//skarnet.org/software/">Software</a><br />
+<a href="//skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> What has changed in mdevd </h1>
+
+<h2> in 0.0.1.0 </h2>
+
+<ul>
+ <li> Initial release. </li>
+</ul>
+
+</body>
+</html>
diff --git a/package/deps-build b/package/deps-build
new file mode 100644
index 0000000..05d5af4
--- /dev/null
+++ b/package/deps-build
@@ -0,0 +1 @@
+/package/prog/skalibs
diff --git a/package/deps.mak b/package/deps.mak
new file mode 100644
index 0000000..64c7965
--- /dev/null
+++ b/package/deps.mak
@@ -0,0 +1,14 @@
+#
+# This file has been generated by tools/gen-deps.sh
+#
+
+src/mdevd/mdevd-coldplug.o src/mdevd/mdevd-coldplug.lo: src/mdevd/mdevd-coldplug.c src/mdevd/mdevd.h
+src/mdevd/mdevd-netlink.o src/mdevd/mdevd-netlink.lo: src/mdevd/mdevd-netlink.c src/mdevd/mdevd.h
+src/mdevd/mdevd.o src/mdevd/mdevd.lo: src/mdevd/mdevd.c src/mdevd/mdevd.h
+
+mdevd: EXTRA_LIBS :=
+mdevd: src/mdevd/mdevd.o -lskarnet
+mdevd-coldplug: EXTRA_LIBS :=
+mdevd-coldplug: src/mdevd/mdevd-coldplug.o -lskarnet
+mdevd-netlink: EXTRA_LIBS :=
+mdevd-netlink: src/mdevd/mdevd-netlink.o -lskarnet
diff --git a/package/info b/package/info
new file mode 100644
index 0000000..41df5d6
--- /dev/null
+++ b/package/info
@@ -0,0 +1,4 @@
+package=mdevd
+version=0.0.1.0
+category=admin
+package_macro_name=MDEVD
diff --git a/package/modes b/package/modes
new file mode 100644
index 0000000..63c3a48
--- /dev/null
+++ b/package/modes
@@ -0,0 +1,3 @@
+mdevd			0755
+mdevd-netlink		0755
+mdevd-coldplug		0755
diff --git a/package/targets.mak b/package/targets.mak
new file mode 100644
index 0000000..6b16bfa
--- /dev/null
+++ b/package/targets.mak
@@ -0,0 +1,7 @@
+BIN_TARGETS := \
+mdevd \
+mdevd-netlink \
+mdevd-coldplug
+
+LIBEXEC_TARGETS :=
+
diff --git a/tools/gen-deps.sh b/tools/gen-deps.sh
new file mode 100755
index 0000000..5c96dd1
--- /dev/null
+++ b/tools/gen-deps.sh
@@ -0,0 +1,89 @@
+#!/bin/sh -e
+
+. package/info
+
+echo '#'
+echo '# This file has been generated by tools/gen-deps.sh'
+echo '#'
+echo
+
+for dir in src/include/${package} src/* ; do
+  for file in $(ls -1 $dir | grep -- \\.h$) ; do
+    {
+      grep -F -- "#include <${package}/" < ${dir}/$file | cut -d'<' -f2 | cut -d'>' -f1 ;
+      grep -- '#include ".*\.h"' < ${dir}/$file | cut -d'"' -f2
+    } | sort -u | {
+      deps=
+      while read dep ; do
+        if echo $dep | grep -q "^${package}/" ; then
+          deps="$deps src/include/$dep"
+        elif test -f "${dir}/$dep" ; then
+          deps="$deps ${dir}/$dep"
+        else
+          deps="$deps src/include-local/$dep"
+        fi
+      done
+      if test -n "$deps" ; then
+        echo "${dir}/${file}:${deps}"
+      fi
+    }
+  done
+done
+
+for dir in src/* ; do
+  for file in $(ls -1 $dir | grep -- \\.c$) ; do
+    {
+      grep -F -- "#include <${package}/" < ${dir}/$file | cut -d'<' -f2 | cut -d'>' -f1 ;
+      grep -- '#include ".*\.h"' < ${dir}/$file | cut -d'"' -f2
+    } | sort -u | {
+      deps=" ${dir}/$file"
+      while read dep ; do
+        if echo $dep | grep -q "^${package}/" ; then
+          deps="$deps src/include/$dep"
+        elif test -f "${dir}/$dep" ; then
+          deps="$deps ${dir}/$dep"
+        else
+          deps="$deps src/include-local/$dep"
+        fi
+      done
+      o=$(echo $file | sed s/\\.c$/.o/)
+      lo=$(echo $file | sed s/\\.c$/.lo/)
+      echo "${dir}/${o} ${dir}/${lo}:${deps}"
+    }
+  done
+done
+echo
+
+for dir in $(ls -1 src | grep -v ^include) ; do
+  for file in $(ls -1 src/$dir/deps-lib) ; do
+    deps=
+    libs=
+    while read dep ; do
+      if echo $dep | grep -q -e ^-l -e '^\${.*_LIB}' ; then
+        libs="$libs $dep"
+      else
+        deps="$deps src/$dir/$dep"
+      fi
+    done < src/$dir/deps-lib/$file
+    echo "lib${file}.a.xyzzy:$deps"
+    echo "lib${file}.so.xyzzy: EXTRA_LIBS :=$libs"
+    echo "lib${file}.so.xyzzy:$(echo "$deps" | sed 's/\.o/.lo/g')"
+  done
+
+  for file in $(ls -1 src/$dir/deps-exe) ; do
+    deps=
+    libs=
+    while read dep ; do
+      if echo $dep | grep -q -- \\.o$ ; then
+        dep="src/$dir/$dep"
+      fi
+      if echo $dep | grep -q -- '^\${.*_LIB}' ; then
+        libs="$libs $dep"
+      else
+        deps="$deps $dep"
+      fi
+    done < src/$dir/deps-exe/$file
+    echo "$file: EXTRA_LIBS :=$libs"
+    echo "$file: src/$dir/$file.o$deps"
+  done
+done
diff --git a/tools/install.sh b/tools/install.sh
new file mode 100755
index 0000000..89f9428
--- /dev/null
+++ b/tools/install.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+
+usage() {
+  echo "usage: $0 [-D] [-l] [-m mode] src dst" 1>&2
+  exit 1
+}
+
+mkdirp=false
+symlink=false
+mode=0755
+
+while getopts Dlm: name ; do
+  case "$name" in
+    D) mkdirp=true ;;
+    l) symlink=true ;;
+    m) mode=$OPTARG ;;
+    ?) usage ;;
+  esac
+done
+shift $(($OPTIND - 1))
+
+test "$#" -eq 2 || usage
+src=$1
+dst=$2
+tmp="$dst.tmp.$$"
+
+case "$dst" in
+  */) echo "$0: $dst ends in /" 1>&2 ; exit 1 ;;
+esac
+
+set -C
+set -e
+
+if $mkdirp ; then
+  umask 022
+  case "$2" in
+    */*) mkdir -p "${dst%/*}" ;;
+  esac
+fi
+
+trap 'rm -f "$tmp"' EXIT INT QUIT TERM HUP
+
+umask 077
+
+if $symlink ; then
+  ln -s "$src" "$tmp"
+else
+  cat < "$1" > "$tmp"
+  chmod "$mode" "$tmp"
+fi
+
+mv -f "$tmp" "$dst"
+if test -d "$dst" ; then
+  rm -f "$dst/$(basename $tmp)"
+  if $symlink ; then
+    mkdir "$tmp"
+    ln -s "$src" "$tmp/$(basename $dst)"
+    mv -f "$tmp/$(basename $dst)" "${dst%/*}"
+    rmdir "$tmp"
+  else
+    echo "$0: $dst is a directory" 1>&2
+    exit 1
+  fi
+fi