From 7b7a022127d14b3a83d042c2aa52c76ec90554d2 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sun, 2 Oct 2005 02:18:11 +0000 Subject: [PATCH] * add pthreads autoconf scripts * add bonjour compatiblity layer (only browsing, resolving for now. the complicated stuff is done, missing parts will follow soon) git-svn-id: file:///home/lennart/svn/public/avahi/trunk@672 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe --- Makefile.am | 3 +- common/acx_pthread.m4 | 235 +++++++++++++++ compat-bonjour/Makefile.am | 40 +++ compat-bonjour/compat.c | 536 +++++++++++++++++++++++++++++++++++ compat-bonjour/funcs.txt | 32 +++ compat-bonjour/unsupported.c | 141 +++++++++ configure.ac | 4 + 7 files changed, 990 insertions(+), 1 deletion(-) create mode 100644 common/acx_pthread.m4 create mode 100644 compat-bonjour/Makefile.am create mode 100644 compat-bonjour/compat.c create mode 100644 compat-bonjour/funcs.txt create mode 100644 compat-bonjour/unsupported.c diff --git a/Makefile.am b/Makefile.am index 2d32ea6..14cf04a 100644 --- a/Makefile.am +++ b/Makefile.am @@ -59,7 +59,8 @@ SUBDIRS = \ examples \ man \ tests \ - service-type-database + service-type-database \ + compat-bonjour DX_INPUT = \ diff --git a/common/acx_pthread.m4 b/common/acx_pthread.m4 new file mode 100644 index 0000000..b7f692a --- /dev/null +++ b/common/acx_pthread.m4 @@ -0,0 +1,235 @@ +dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) +dnl +dnl This macro figures out how to build C programs using POSIX threads. +dnl It sets the PTHREAD_LIBS output variable to the threads library and +dnl linker flags, and the PTHREAD_CFLAGS output variable to any special +dnl C compiler flags that are needed. (The user can also force certain +dnl compiler flags/libs to be tested by setting these environment +dnl variables.) +dnl +dnl Also sets PTHREAD_CC to any special C compiler that is needed for +dnl multi-threaded programs (defaults to the value of CC otherwise). +dnl (This is necessary on AIX to use the special cc_r compiler alias.) +dnl +dnl NOTE: You are assumed to not only compile your program with these +dnl flags, but also link it with them as well. e.g. you should link +dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS +dnl $LIBS +dnl +dnl If you are only building threads programs, you may wish to use +dnl these variables in your default LIBS, CFLAGS, and CC: +dnl +dnl LIBS="$PTHREAD_LIBS $LIBS" +dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +dnl CC="$PTHREAD_CC" +dnl +dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute +dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to +dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). +dnl +dnl ACTION-IF-FOUND is a list of shell commands to run if a threads +dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to +dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the +dnl default action will define HAVE_PTHREAD. +dnl +dnl Please let the authors know if this macro fails on any platform, or +dnl if you have any other suggestions or comments. This macro was based +dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with +dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros +dnl posted by Alejandro Forero Cuervo to the autoconf macro repository. +dnl We are also grateful for the helpful feedback of numerous users. +dnl +dnl @category InstalledPackages +dnl @author Steven G. Johnson +dnl @version 2005-01-14 +dnl @license GPLWithACException + +AC_DEFUN([ACX_PTHREAD], [ +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_LANG_SAVE +AC_LANG_C +acx_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on True64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) + AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes) + AC_MSG_RESULT($acx_pthread_ok) + if test x"$acx_pthread_ok" = xno; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) +# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) +# -pthreads: Solaris/gcc +# -mthreads: Mingw32/gcc, Lynx/gcc +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads too; +# also defines -D_REENTRANT) +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case "${host_cpu}-${host_os}" in + *solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (We need to link with -pthread or + # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather + # a function called by this macro, so we could check for that, but + # who knows whether they'll stub that too in a future libc.) So, + # we'll just look for -pthreads and -lpthread first: + + acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags" + ;; +esac + +if test x"$acx_pthread_ok" = xno; then +for flag in $acx_pthread_flags; do + + case $flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $flag]) + PTHREAD_CFLAGS="$flag" + ;; + + pthread-config) + AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no) + if test x"$acx_pthread_config" = xno; then continue; fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$flag]) + PTHREAD_LIBS="-l$flag" + ;; + esac + + save_LIBS="$LIBS" + save_CFLAGS="$CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + AC_TRY_LINK([#include ], + [pthread_t th; pthread_join(th, 0); + pthread_attr_init(0); pthread_cleanup_push(0, 0); + pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], + [acx_pthread_ok=yes]) + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + AC_MSG_RESULT($acx_pthread_ok) + if test "x$acx_pthread_ok" = xyes; then + break; + fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$acx_pthread_ok" = xyes; then + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + AC_MSG_CHECKING([for joinable pthread attribute]) + attr_name=unknown + for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + AC_TRY_LINK([#include ], [int attr=$attr;], + [attr_name=$attr; break]) + done + AC_MSG_RESULT($attr_name) + if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then + AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, + [Define to necessary symbol if this constant + uses a non-standard name on your system.]) + fi + + AC_MSG_CHECKING([if more special flags are required for pthreads]) + flag=no + case "${host_cpu}-${host_os}" in + *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; + *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; + esac + AC_MSG_RESULT(${flag}) + if test "x$flag" != xno; then + PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" + fi + + LIBS="$save_LIBS" + CFLAGS="$save_CFLAGS" + + # More AIX lossage: must compile with cc_r + AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC}) +else + PTHREAD_CC="$CC" +fi + +AC_SUBST(PTHREAD_LIBS) +AC_SUBST(PTHREAD_CFLAGS) +AC_SUBST(PTHREAD_CC) + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test x"$acx_pthread_ok" = xyes; then + ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) + : +else + acx_pthread_ok=no + $2 +fi +AC_LANG_RESTORE +])dnl ACX_PTHREAD diff --git a/compat-bonjour/Makefile.am b/compat-bonjour/Makefile.am new file mode 100644 index 0000000..78decb7 --- /dev/null +++ b/compat-bonjour/Makefile.am @@ -0,0 +1,40 @@ +# $Id$ + +# This file is part of avahi. +# +# avahi is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. +# +# avahi is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +# License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with avahi; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +# USA. + +AM_CFLAGS=-I$(top_srcdir) + +# This cool debug trap works on i386/gcc only +AM_CFLAGS+='-DDEBUG_TRAP=__asm__("int $$3")' + +avahi_compat_bonjourdir=$(includedir)/avahi-compat-bonjour + +avahi_compat_bonjour_HEADERS = \ + dns_sd.h + + +lib_LTLIBRARIES = \ + libavahi-compat-bonjour.la + +libavahi_compat_bonjour_la_SOURCES = \ + unsupported.c \ + compat.c \ + dns_sd.h + +libavahi_compat_bonjour_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS) +libavahi_compat_bonjour_la_LDFLAGS = $(AM_LDFLAGS) -export-dynamic -version-info $(LIBAVAHI_COMPAT_BONJOUR_VERSION_INFO) $(PTHREAD_LIBS) diff --git a/compat-bonjour/compat.c b/compat-bonjour/compat.c new file mode 100644 index 0000000..6651845 --- /dev/null +++ b/compat-bonjour/compat.c @@ -0,0 +1,536 @@ +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + + +#include "dns_sd.h" + +enum { + COMMAND_POLL = 'P', + COMMAND_QUIT = 'Q', + COMMAND_POLLED = 'D' +}; + +struct _DNSServiceRef_t { + AvahiSimplePoll *simple_poll; + + int thread_fd, main_fd; + + pthread_t thread; + int thread_running; + + pthread_mutex_t mutex; + + void *context; + DNSServiceBrowseReply service_browser_callback; + DNSServiceResolveReply service_resolver_callback; + + AvahiClient *client; + AvahiServiceBrowser *service_browser; + AvahiServiceResolver *service_resolver; +}; + +#define ASSERT_SUCCESS(r) { int __ret = (r); assert(__ret == 0); } + +static int read_command(int fd) { + ssize_t r; + char command; + + assert(fd >= 0); + + if ((r = read(fd, &command, 1)) != 1) { + fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF"); + return -1; + } + + return command; +} + +static int write_command(int fd, char reply) { + assert(fd >= 0); + + if (write(fd, &reply, 1) != 1) { + fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno)); + return -1; + } + + return 0; +} + +static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) { + DNSServiceRef sdref = userdata; + int ret; + + assert(sdref); + + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + +/* fprintf(stderr, "pre-syscall\n"); */ + ret = poll(ufds, nfds, timeout); +/* fprintf(stderr, "post-syscall\n"); */ + + ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex)); + + return ret; +} + +static void * thread_func(void *data) { + DNSServiceRef sdref = data; + sigset_t mask; + + sigfillset(&mask); + pthread_sigmask(SIG_BLOCK, &mask, NULL); + + sdref->thread = pthread_self(); + sdref->thread_running = 1; + + for (;;) { + char command; + + if ((command = read_command(sdref->thread_fd)) < 0) + break; + +/* fprintf(stderr, "Command: %c\n", command); */ + + switch (command) { + + case COMMAND_POLL: + + ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex)); + + + if (avahi_simple_poll_run(sdref->simple_poll) < 0) { + fprintf(stderr, __FILE__": avahi_simple_poll_run() failed.\n"); + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + break; + } + + if (write_command(sdref->thread_fd, COMMAND_POLLED) < 0) { + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + break; + } + + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + + break; + + case COMMAND_QUIT: + return NULL; + } + + } + + return NULL; +} + +static DNSServiceRef sdref_new(void) { + int fd[2] = { -1, -1 }; + DNSServiceRef sdref = NULL; + + if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) + goto fail; + + if (!(sdref = avahi_new(struct _DNSServiceRef_t, 1))) + goto fail; + + sdref->thread_fd = fd[0]; + sdref->main_fd = fd[1]; + + sdref->client = NULL; + sdref->service_browser = NULL; + sdref->service_resolver = NULL; + + pthread_mutex_init(&sdref->mutex, NULL); + + sdref->thread_running = 0; + + if (!(sdref->simple_poll = avahi_simple_poll_new())) + goto fail; + + avahi_simple_poll_set_func(sdref->simple_poll, poll_func, sdref); + + /* Start simple poll */ + if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0) + goto fail; + + /* Queue a initiall POLL command for the thread */ + if (write_command(sdref->main_fd, COMMAND_POLL) < 0) + goto fail; + + if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0) + goto fail; + + sdref->thread_running = 1; + + return sdref; + +fail: + + if (sdref) + DNSServiceRefDeallocate(sdref); + + return NULL; +} + +int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdRef) { + assert(sdRef); + + return sdRef->main_fd; +} + +DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) { + DNSServiceErrorType ret = kDNSServiceErr_Unknown; + + if (pthread_mutex_lock(&sdref->mutex) != 0) + return kDNSServiceErr_Unknown; + + /* Cleanup notification socket */ + if (read_command(sdref->main_fd) != COMMAND_POLLED) + goto finish; + + if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0) + goto finish; + + if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0) + goto finish; + + /* Request the poll */ + if (write_command(sdref->main_fd, COMMAND_POLL) < 0) + goto finish; + + ret = kDNSServiceErr_NoError; + +finish: + + pthread_mutex_unlock(&sdref->mutex); + + return ret; +} + +void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdref) { + assert(sdref); + + fprintf(stderr, "deallocating()\n"); + + if (sdref->thread_running) { + write_command(sdref->main_fd, COMMAND_QUIT); + avahi_simple_poll_wakeup(sdref->simple_poll); + pthread_join(sdref->thread, NULL); + } + + if (sdref->client) + avahi_client_free(sdref->client); + + if (sdref->thread_fd >= 0) + close(sdref->thread_fd); + + if (sdref->main_fd >= 0) + close(sdref->main_fd); + + if (sdref->simple_poll) + avahi_simple_poll_free(sdref->simple_poll); + + pthread_mutex_destroy(&sdref->mutex); + + avahi_free(sdref); +} + +static DNSServiceErrorType map_error(int error) { + switch (error) { + case AVAHI_OK : + return kDNSServiceErr_NoError; + + case AVAHI_ERR_BAD_STATE : + return kDNSServiceErr_BadState; + + case AVAHI_ERR_INVALID_HOST_NAME: + case AVAHI_ERR_INVALID_DOMAIN_NAME: + case AVAHI_ERR_INVALID_TTL: + case AVAHI_ERR_IS_PATTERN: + case AVAHI_ERR_INVALID_RECORD: + case AVAHI_ERR_INVALID_SERVICE_NAME: + case AVAHI_ERR_INVALID_SERVICE_TYPE: + case AVAHI_ERR_INVALID_PORT: + case AVAHI_ERR_INVALID_KEY: + case AVAHI_ERR_INVALID_ADDRESS: + return kDNSServiceErr_BadParam; + + + case AVAHI_ERR_LOCAL_COLLISION: + return kDNSServiceErr_NameConflict; + + case AVAHI_ERR_TOO_MANY_CLIENTS: + case AVAHI_ERR_TOO_MANY_OBJECTS: + case AVAHI_ERR_TOO_MANY_ENTRIES: + case AVAHI_ERR_ACCESS_DENIED: + return kDNSServiceErr_Refused; + + case AVAHI_ERR_INVALID_OPERATION: + case AVAHI_ERR_INVALID_OBJECT: + return kDNSServiceErr_Invalid; + + case AVAHI_ERR_NO_MEMORY: + return kDNSServiceErr_NoMemory; + + case AVAHI_ERR_INVALID_INTERFACE: + case AVAHI_ERR_INVALID_PROTOCOL: + return kDNSServiceErr_BadInterfaceIndex; + + case AVAHI_ERR_INVALID_FLAGS: + return kDNSServiceErr_BadFlags; + + case AVAHI_ERR_NOT_FOUND: + return kDNSServiceErr_NoSuchName; + + case AVAHI_ERR_VERSION_MISMATCH: + return kDNSServiceErr_Incompatible; + + case AVAHI_ERR_NO_NETWORK: + case AVAHI_ERR_OS: + case AVAHI_ERR_INVALID_CONFIG: + case AVAHI_ERR_TIMEOUT: + case AVAHI_ERR_DBUS_ERROR: + case AVAHI_ERR_NOT_CONNECTED: + case AVAHI_ERR_NO_DAEMON: + break; + + } + + return kDNSServiceErr_Unknown; +} + +static void service_browser_callback( + AvahiServiceBrowser *b, + AvahiIfIndex interface, + AvahiProtocol protocol, + AvahiBrowserEvent event, + const char *name, + const char *type, + const char *domain, + AvahiLookupResultFlags flags, + void *userdata) { + + DNSServiceRef sdref = userdata; + + assert(b); + assert(sdref); + + switch (event) { + case AVAHI_BROWSER_NEW: + sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context); + break; + + case AVAHI_BROWSER_REMOVE: + sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context); + break; + + case AVAHI_BROWSER_FAILURE: + sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_Unknown, name, type, domain, sdref->context); + break; + + case AVAHI_BROWSER_NOT_FOUND: + sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoSuchName, name, type, domain, sdref->context); + break; + + case AVAHI_BROWSER_CACHE_EXHAUSTED: + case AVAHI_BROWSER_ALL_FOR_NOW: + break; + } +} + +DNSServiceErrorType DNSSD_API DNSServiceBrowse( + DNSServiceRef *ret_sdref, + DNSServiceFlags flags, + uint32_t interface, + const char *regtype, + const char *domain, + DNSServiceBrowseReply callback, + void *context) { + + DNSServiceErrorType ret = kDNSServiceErr_Unknown; + int error; + DNSServiceRef sdref = NULL; + AvahiIfIndex ifindex; + + assert(ret_sdref); + assert(regtype); + assert(domain); + assert(callback); + + if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) + return kDNSServiceErr_Unsupported; + + if (!(sdref = sdref_new())) + return kDNSServiceErr_Unknown; + + sdref->context = context; + sdref->service_browser_callback = callback; + + ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex)); + + if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), NULL, NULL, &error))) { + ret = map_error(error); + goto finish; + } + + ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface; + + if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) { + ret = map_error(avahi_client_errno(sdref->client)); + goto finish; + } + + + ret = kDNSServiceErr_NoError; + *ret_sdref = sdref; + +finish: + + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + + if (ret != kDNSServiceErr_NoError) + DNSServiceRefDeallocate(sdref); + + return ret; +} + +static void service_resolver_callback( + AvahiServiceResolver *r, + AvahiIfIndex interface, + AvahiProtocol protocol, + AvahiResolverEvent event, + const char *name, + const char *type, + const char *domain, + const char *host_name, + const AvahiAddress *a, + uint16_t port, + AvahiStringList *txt, + AvahiLookupResultFlags flags, + void *userdata) { + + DNSServiceRef sdref = userdata; + + assert(r); + assert(sdref); + + switch (event) { + case AVAHI_RESOLVER_FOUND: { + + char *p = NULL; + size_t l = 0; + + if ((p = avahi_new0(char, (l = avahi_string_list_serialize(txt, NULL, 0))+1))) + avahi_string_list_serialize(txt, p, l); + + sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, "blaa", host_name, htons(port), l, p, sdref->context); + + avahi_free(p); + break; + } + + case AVAHI_RESOLVER_TIMEOUT: + case AVAHI_RESOLVER_NOT_FOUND: + sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoSuchName, NULL, NULL, 0, 0, NULL, sdref->context); + break; + + case AVAHI_RESOLVER_FAILURE: + sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_Unknown, NULL, NULL, 0, 0, NULL, sdref->context); + + } +} + + +DNSServiceErrorType DNSSD_API DNSServiceResolve( + DNSServiceRef *ret_sdref, + DNSServiceFlags flags, + uint32_t interface, + const char *name, + const char *regtype, + const char *domain, + DNSServiceResolveReply callback, + void *context) { + + DNSServiceErrorType ret = kDNSServiceErr_Unknown; + int error; + DNSServiceRef sdref = NULL; + AvahiIfIndex ifindex; + + assert(ret_sdref); + assert(name); + assert(regtype); + assert(domain); + assert(callback); + + if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) + return kDNSServiceErr_Unsupported; + + if (!(sdref = sdref_new())) + return kDNSServiceErr_Unknown; + + sdref->context = context; + sdref->service_resolver_callback = callback; + + ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex)); + + if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), NULL, NULL, &error))) { + ret = map_error(error); + goto finish; + } + + ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface; + + if (!(sdref->service_resolver = avahi_service_resolver_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, name, regtype, domain, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, sdref))) { + ret = map_error(avahi_client_errno(sdref->client)); + goto finish; + } + + + ret = kDNSServiceErr_NoError; + *ret_sdref = sdref; + +finish: + + ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex)); + + if (ret != kDNSServiceErr_NoError) + DNSServiceRefDeallocate(sdref); + + return ret; +} + diff --git a/compat-bonjour/funcs.txt b/compat-bonjour/funcs.txt new file mode 100644 index 0000000..94104ad --- /dev/null +++ b/compat-bonjour/funcs.txt @@ -0,0 +1,32 @@ +Yes: + +DNSServiceRefSockFD +DNSServiceProcessResult +DNSServiceRefDeallocate +DNSServiceEnumerateDomains +DNSServiceRegister +DNSServiceBrowse +DNSServiceResolve +DNSServiceConstructFullName + +TXTRecordCreate +TXTRecordDeallocate +TXTRecordSetValue +TXTRecordRemoveValue +TXTRecordGetLength +TXTRecordGetBytesPtr +TXTRecordContainsKey +TXTRecordGetValuePtr +TXTRecordGetCount +TXTRecordGetItemAtIndex + +No: + +DNSServiceRegisterRecord +DNSServiceQueryRecord +DNSServiceReconfirmRecord +DNSServiceCreateConnection +DNSServiceAddRecord +DNSServiceUpdateRecord +DNSServiceRemoveRecord +DNSServiceSetDefaultDomainForUser diff --git a/compat-bonjour/unsupported.c b/compat-bonjour/unsupported.c new file mode 100644 index 0000000..d57d028 --- /dev/null +++ b/compat-bonjour/unsupported.c @@ -0,0 +1,141 @@ +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "dns_sd.h" + +DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains( + DNSServiceRef *sdRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, + DNSServiceDomainEnumReply callBack, + void *context) { + + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceRegister ( + DNSServiceRef *sdRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, + const char *name, + const char *regtype, + const char *domain, + const char *host, + uint16_t port, + uint16_t txtLen, + const void *txtRecord, + DNSServiceRegisterReply callBack, + void *context) { + + return kDNSServiceErr_Unsupported; +} + +int DNSSD_API DNSServiceConstructFullName ( + char *fullName, + const char *service, + const char *regtype, + const char *domain) { + + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceRegisterRecord ( + DNSServiceRef sdRef, + DNSRecordRef *RecordRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, + const char *fullname, + uint16_t rrtype, + uint16_t rrclass, + uint16_t rdlen, + const void *rdata, + uint32_t ttl, + DNSServiceRegisterRecordReply callBack, + void *context) { + + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceQueryRecord ( + DNSServiceRef *sdRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, + const char *fullname, + uint16_t rrtype, + uint16_t rrclass, + DNSServiceQueryRecordReply callBack, + void *context) { + + return kDNSServiceErr_Unsupported; +} + +void DNSSD_API DNSServiceReconfirmRecord ( + DNSServiceFlags flags, + uint32_t interfaceIndex, + const char *fullname, + uint16_t rrtype, + uint16_t rrclass, + uint16_t rdlen, + const void *rdata) { + + return; +} + +DNSServiceErrorType DNSSD_API DNSServiceCreateConnection(DNSServiceRef *sdRef) { + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceAddRecord( + DNSServiceRef sdRef, + DNSRecordRef *RecordRef, + DNSServiceFlags flags, + uint16_t rrtype, + uint16_t rdlen, + const void *rdata, + uint32_t ttl) { + + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceUpdateRecord( + DNSServiceRef sdRef, + DNSRecordRef RecordRef, + DNSServiceFlags flags, + uint16_t rdlen, + const void *rdata, + uint32_t ttl) { + + return kDNSServiceErr_Unsupported; +} + +DNSServiceErrorType DNSSD_API DNSServiceRemoveRecord( + DNSServiceRef sdRef, + DNSRecordRef RecordRef, + DNSServiceFlags flags) { + + return kDNSServiceErr_Unsupported; +} + + diff --git a/configure.ac b/configure.ac index d047e5c..c70ab2d 100644 --- a/configure.ac +++ b/configure.ac @@ -34,6 +34,7 @@ AC_SUBST(LIBAVAHI_CLIENT_VERSION_INFO, [2:0:1]) AC_SUBST(LIBAVAHI_GLIB_VERSION_INFO, [0:1:0]) AC_SUBST(LIBAVAHI_QT3_VERSION_INFO, [0:0:0]) AC_SUBST(LIBAVAHI_QT4_VERSION_INFO, [0:0:0]) +AC_SUBST(LIBAVAHI_COMPAT_BONJOUR_VERSION_INFO, [0:0:0]) if type -p stow > /dev/null && test -d /usr/local/stow ; then AC_MSG_NOTICE([*** Found /usr/local/stow: default install prefix set to /usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION} ***]) @@ -53,6 +54,8 @@ AC_PROG_GCC_TRADITIONAL # libtool stuff AC_PROG_LIBTOOL +ACX_PTHREAD(,AC_MSG_ERROR([Missing POSIX Threads support])) + # # Detecting the linux distribution for specific things like init scripts. # @@ -552,6 +555,7 @@ man/Makefile tests/Makefile service-type-database/Makefile avahi-sharp/Makefile +compat-bonjour/Makefile ]) AC_OUTPUT -- 2.39.5