Remove various bits that were only used for GibberResolver

3 files changed, 2 insertions, 1667 deletions

diff --git a/lib/gibber/Makefile.am b/lib/gibber/Makefile.am
index 4bd213b7b..71b98bfbd 100644
--- a/lib/gibber/Makefile.am
+++ b/lib/gibber/Makefile.am
@@ -5,10 +5,6 @@ BUILT_SOURCES = \
   gibber-signals-marshal.h \
   gibber-signals-marshal.c
 
-IMPORTED_SOURCES =                \
-  asyncns.c                       \
-  asyncns.h
-
 OUR_SOURCES =                     \
   gibber-debug.c                  \
   gibber-debug.h                  \
@@ -29,7 +25,7 @@ OUR_SOURCES =                     \
   gibber-util.h                   \
   gibber-util.c
 
-libgibber_la_SOURCES = $(OUR_SOURCES) $(BUILT_SOURCES) $(IMPORTED_SOURCES)
+libgibber_la_SOURCES = $(OUR_SOURCES) $(BUILT_SOURCES)
 
 # Coding style checks
 check_c_sources = \
@@ -65,7 +61,7 @@ gibber-signals-marshal.list: $(OUR_SOURCES) Makefile.am
 
 AM_CFLAGS = $(ERROR_CFLAGS) $(GCOV_CFLAGS) @GLIB_CFLAGS@ -fno-strict-aliasing
 
-AM_LDFLAGS = $(GCOV_LIBS) @GLIB_LIBS@ @RESOLV_LIBS@
+AM_LDFLAGS = $(GCOV_LIBS) @GLIB_LIBS@
 
 # rules for making the glib enum objects
 %-enumtypes.h: %.h Makefile.in
diff --git a/lib/gibber/asyncns.c b/lib/gibber/asyncns.c
deleted file mode 100644
index 4088ce738..000000000
--- a/lib/gibber/asyncns.c
+++ /dev/null
@@ -1,1498 +0,0 @@
-/***
-  This file is part of libasyncns.
-
-  Copyright 2005-2008 Lennart Poettering
-
-  libasyncns 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.
-
-  libasyncns 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 libasyncns. If not, see
-  <http://www.gnu.org/licenses/>.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/* #undef HAVE_PTHREAD */
-
-#include <assert.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/select.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/wait.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <resolv.h>
-#include <dirent.h>
-
-#if HAVE_ARPA_NAMESER_COMPAT_H
-#include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_SYS_PRCTL_H
-#include <sys/prctl.h>
-#endif
-
-#if HAVE_PTHREAD
-#include <pthread.h>
-#endif
-
-#include "asyncns.h"
-
-#ifndef MSG_NOSIGNAL
-#define MSG_NOSIGNAL 0
-#endif
-
-#define MAX_WORKERS 16
-#define MAX_QUERIES 256
-#define BUFSIZE (10240)
-
-typedef enum {
-    REQUEST_ADDRINFO,
-    RESPONSE_ADDRINFO,
-    REQUEST_NAMEINFO,
-    RESPONSE_NAMEINFO,
-    REQUEST_RES_QUERY,
-    REQUEST_RES_SEARCH,
-    RESPONSE_RES,
-    REQUEST_TERMINATE,
-    RESPONSE_DIED
-} query_type_t;
-
-enum {
-    REQUEST_RECV_FD = 0,
-    REQUEST_SEND_FD = 1,
-    RESPONSE_RECV_FD = 2,
-    RESPONSE_SEND_FD = 3,
-    MESSAGE_FD_MAX = 4
-};
-
-struct asyncns {
-    int fds[4];
-
-#ifndef HAVE_PTHREAD
-    pid_t workers[MAX_WORKERS];
-#else
-    pthread_t workers[MAX_WORKERS];
-#endif
-    unsigned valid_workers;
-
-    unsigned current_id, current_index;
-    asyncns_query_t* queries[MAX_QUERIES];
-
-    asyncns_query_t *done_head, *done_tail;
-
-    int n_queries;
-    int dead;
-};
-
-struct asyncns_query {
-    asyncns_t *asyncns;
-    int done;
-    unsigned id;
-    query_type_t type;
-    asyncns_query_t *done_next, *done_prev;
-    int ret;
-    int _errno;
-    int _h_errno;
-    struct addrinfo *addrinfo;
-    char *serv, *host;
-    void *userdata;
-};
-
-typedef struct rheader {
-    query_type_t type;
-    unsigned id;
-    size_t length;
-} rheader_t;
-
-typedef struct addrinfo_request {
-    struct rheader header;
-    int hints_is_null;
-    int ai_flags;
-    int ai_family;
-    int ai_socktype;
-    int ai_protocol;
-    size_t node_len, service_len;
-} addrinfo_request_t;
-
-typedef struct addrinfo_response {
-    struct rheader header;
-    int ret;
-    int _errno;
-    int _h_errno;
-    /* followed by addrinfo_serialization[] */
-} addrinfo_response_t;
-
-typedef struct addrinfo_serialization {
-    int ai_flags;
-    int ai_family;
-    int ai_socktype;
-    int ai_protocol;
-    size_t ai_addrlen;
-    size_t canonname_len;
-    /* Followed by ai_addr amd ai_canonname with variable lengths */
-} addrinfo_serialization_t;
-
-typedef struct nameinfo_request {
-    struct rheader header;
-    int flags;
-    socklen_t sockaddr_len;
-    int gethost, getserv;
-} nameinfo_request_t;
-
-typedef struct nameinfo_response {
-    struct rheader header;
-    size_t hostlen, servlen;
-    int ret;
-    int _errno;
-    int _h_errno;
-} nameinfo_response_t;
-
-typedef struct res_query_request {
-    struct rheader header;
-    int class;
-    int type;
-    size_t dname_len;
-} res_request_t;
-
-typedef struct res_query_response {
-    struct rheader header;
-    int ret;
-    int _errno;
-    int _h_errno;
-} res_response_t;
-
-#ifndef HAVE_STRNDUP
-
-static char *strndup(const char *s, size_t l) {
-    size_t a;
-    char *n;
-
-    a = strlen(s);
-    if (a > l)
-        a = l;
-
-    if (!(n = malloc(a+1)))
-        return NULL;
-
-    memcpy(n, s, a);
-    n[a] = 0;
-
-    return n;
-}
-
-#endif
-
-#ifndef HAVE_PTHREAD
-
-static int close_allv(const int except_fds[]) {
-    struct rlimit rl;
-    int fd;
-
-#ifdef __linux__
-
-    DIR *d;
-
-    assert(except_fds);
-
-    if ((d = opendir("/proc/self/fd"))) {
-
-        struct dirent *de;
-
-        while ((de = readdir(d))) {
-            int found;
-            long l;
-            char *e = NULL;
-            int i;
-
-            if (de->d_name[0] == '.')
-                continue;
-
-            errno = 0;
-            l = strtol(de->d_name, &e, 10);
-            if (errno != 0 || !e || *e) {
-                closedir(d);
-                errno = EINVAL;
-                return -1;
-            }
-
-            fd = (int) l;
-
-            if ((long) fd != l) {
-                closedir(d);
-                errno = EINVAL;
-                return -1;
-            }
-
-            if (fd < 3)
-                continue;
-
-            if (fd == dirfd(d))
-                continue;
-
-            found = 0;
-            for (i = 0; except_fds[i] >= 0; i++)
-                if (except_fds[i] == fd) {
-                    found = 1;
-                    break;
-                }
-
-            if (found)
-                continue;
-
-            if (close(fd) < 0) {
-                int saved_errno;
-
-                saved_errno = errno;
-                closedir(d);
-                errno = saved_errno;
-
-                return -1;
-            }
-        }
-
-        closedir(d);
-        return 0;
-    }
-
-#endif
-
-    if (getrlimit(RLIMIT_NOFILE, &rl) < 0)
-        return -1;
-
-    for (fd = 0; fd < (int) rl.rlim_max; fd++) {
-        int i;
-
-        if (fd <= 3)
-            continue;
-
-        for (i = 0; except_fds[i] >= 0; i++)
-            if (except_fds[i] == fd)
-                continue;
-
-        if (close(fd) < 0 && errno != EBADF)
-            return -1;
-    }
-
-    return 0;
-}
-
-static int reset_sigsv(const int except[]) {
-    int sig;
-    assert(except);
-
-    for (sig = 1; sig < NSIG; sig++) {
-        int reset = 1;
-
-        switch (sig) {
-            case SIGKILL:
-            case SIGSTOP:
-                reset = 0;
-                break;
-
-            default: {
-                int i;
-
-                for (i = 0; except[i] > 0; i++) {
-                    if (sig == except[i]) {
-                        reset = 0;
-                        break;
-                    }
-                }
-            }
-        }
-
-        if (reset) {
-            struct sigaction sa;
-
-            memset(&sa, 0, sizeof(sa));
-            sa.sa_handler = SIG_DFL;
-
-            /* On Linux the first two RT signals are reserved by
-             * glibc, and sigaction() will return EINVAL for them. */
-            if ((sigaction(sig, &sa, NULL) < 0))
-                if (errno != EINVAL)
-                    return -1;
-        }
-    }
-
-    return 0;
-}
-
-static int ignore_sigsv(const int ignore[]) {
-    int i;
-    assert(ignore);
-
-    for (i = 0; ignore[i] > 0; i++) {
-        struct sigaction sa;
-
-        memset(&sa, 0, sizeof(sa));
-        sa.sa_handler = SIG_IGN;
-
-        if ((sigaction(ignore[i], &sa, NULL) < 0))
-            return -1;
-    }
-
-    return 0;
-}
-
-#endif
-
-static int fd_nonblock(int fd) {
-    int i;
-    assert(fd >= 0);
-
-    if ((i = fcntl(fd, F_GETFL, 0)) < 0)
-        return -1;
-
-    if (i & O_NONBLOCK)
-        return 0;
-
-    return fcntl(fd, F_SETFL, i | O_NONBLOCK);
-}
-
-static int fd_cloexec(int fd) {
-    int v;
-    assert(fd >= 0);
-
-    if ((v = fcntl(fd, F_GETFD, 0)) < 0)
-        return -1;
-
-    if (v & FD_CLOEXEC)
-        return 0;
-
-    return fcntl(fd, F_SETFD, v | FD_CLOEXEC);
-}
-
-static int send_died(int out_fd) {
-    rheader_t rh;
-    assert(out_fd > 0);
-
-    memset(&rh, 0, sizeof(rh));
-    rh.type = RESPONSE_DIED;
-    rh.id = 0;
-    rh.length = sizeof(rh);
-
-    return send(out_fd, &rh, rh.length, MSG_NOSIGNAL);
-}
-
-static void *serialize_addrinfo(void *p, const struct addrinfo *ai, size_t *length, size_t maxlength) {
-    addrinfo_serialization_t s;
-    size_t cnl, l;
-    assert(p);
-    assert(ai);
-    assert(length);
-    assert(*length <= maxlength);
-
-    cnl = (ai->ai_canonname ? strlen(ai->ai_canonname)+1 : 0);
-    l = sizeof(addrinfo_serialization_t) + ai->ai_addrlen + cnl;
-
-    if (*length + l > maxlength)
-        return NULL;
-
-    s.ai_flags = ai->ai_flags;
-    s.ai_family = ai->ai_family;
-    s.ai_socktype = ai->ai_socktype;
-    s.ai_protocol = ai->ai_protocol;
-    s.ai_addrlen = ai->ai_addrlen;
-    s.canonname_len = cnl;
-
-    memcpy((uint8_t*) p, &s, sizeof(addrinfo_serialization_t));
-    memcpy((uint8_t*) p + sizeof(addrinfo_serialization_t), ai->ai_addr, ai->ai_addrlen);
-
-    if (ai->ai_canonname)
-        strcpy((char*) p + sizeof(addrinfo_serialization_t) + ai->ai_addrlen, ai->ai_canonname);
-
-    *length += l;
-    return (uint8_t*) p + l;
-}
-
-static int send_addrinfo_reply(int out_fd, unsigned id, int ret, struct addrinfo *ai, int _errno, int _h_errno) {
-    addrinfo_response_t data[BUFSIZE/sizeof(addrinfo_response_t) + 1];
-    addrinfo_response_t *resp = data;
-    assert(out_fd >= 0);
-
-    memset(data, 0, sizeof(data));
-    resp->header.type = RESPONSE_ADDRINFO;
-    resp->header.id = id;
-    resp->header.length = sizeof(addrinfo_response_t);
-    resp->ret = ret;
-    resp->_errno = _errno;
-    resp->_h_errno = _h_errno;
-
-    if (ret == 0 && ai) {
-        void *p = data + 1;
-        struct addrinfo *k;
-
-        for (k = ai; k; k = k->ai_next) {
-
-            if (!(p = serialize_addrinfo(p, k, &resp->header.length, (char*) data + BUFSIZE - (char*) p))) {
-                resp->ret = EAI_MEMORY;
-                break;
-            }
-        }
-    }
-
-    if (ai)
-        freeaddrinfo(ai);
-
-    return send(out_fd, resp, resp->header.length, MSG_NOSIGNAL);
-}
-
-static int send_nameinfo_reply(int out_fd, unsigned id, int ret, const char *host, const char *serv, int _errno, int _h_errno) {
-    nameinfo_response_t data[BUFSIZE/sizeof(nameinfo_response_t) + 1];
-    size_t hl, sl;
-    nameinfo_response_t *resp = data;
-
-    assert(out_fd >= 0);
-
-    sl = serv ? strlen(serv)+1 : 0;
-    hl = host ? strlen(host)+1 : 0;
-
-    memset(data, 0, sizeof(data));
-    resp->header.type = RESPONSE_NAMEINFO;
-    resp->header.id = id;
-    resp->header.length = sizeof(nameinfo_response_t) + hl + sl;
-    resp->ret = ret;
-    resp->_errno = _errno;
-    resp->_h_errno = _h_errno;
-    resp->hostlen = hl;
-    resp->servlen = sl;
-
-    assert(sizeof(data) >= resp->header.length);
-
-    if (host)
-        memcpy((uint8_t *)data + sizeof(nameinfo_response_t), host, hl);
-
-    if (serv)
-        memcpy((uint8_t *)data + sizeof(nameinfo_response_t) + hl, serv, sl);
-
-    return send(out_fd, resp, resp->header.length, MSG_NOSIGNAL);
-}
-
-static int send_res_reply(int out_fd, unsigned id, const unsigned char *answer, int ret, int _errno, int _h_errno) {
-    res_response_t data[BUFSIZE/sizeof(res_response_t) + 1];
-    res_response_t *resp = data;
-
-    assert(out_fd >= 0);
-
-    memset(data, 0, sizeof(data));
-    resp->header.type = RESPONSE_RES;
-    resp->header.id = id;
-    resp->header.length = sizeof(res_response_t) + (ret < 0 ? 0 : ret);
-    resp->ret = ret;
-    resp->_errno = _errno;
-    resp->_h_errno = _h_errno;
-
-    assert(sizeof(data) >= resp->header.length);
-
-    if (ret > 0)
-        memcpy((uint8_t *)data + sizeof(res_response_t), answer, ret);
-
-    return send(out_fd, resp, resp->header.length, MSG_NOSIGNAL);
-}
-
-static int handle_request(int out_fd, const rheader_t *req, size_t length) {
-    assert(out_fd >= 0);
-    assert(req);
-    assert(length >= sizeof(rheader_t));
-    assert(length == req->length);
-
-    switch (req->type) {
-        case REQUEST_ADDRINFO: {
-            struct addrinfo ai, *result = NULL;
-            const addrinfo_request_t *ai_req = (const addrinfo_request_t*) req;
-            const char *node, *service;
-            int ret;
-
-            assert(length >= sizeof(addrinfo_request_t));
-            assert(length == sizeof(addrinfo_request_t) + ai_req->node_len + ai_req->service_len);
-
-            memset(&ai, 0, sizeof(ai));
-            ai.ai_flags = ai_req->ai_flags;
-            ai.ai_family = ai_req->ai_family;
-            ai.ai_socktype = ai_req->ai_socktype;
-            ai.ai_protocol = ai_req->ai_protocol;
-
-            node = ai_req->node_len ? (const char*) req + sizeof(addrinfo_request_t) : NULL;
-            service = ai_req->service_len ? (const char*) req + sizeof(addrinfo_request_t) + ai_req->node_len : NULL;
-
-            ret = getaddrinfo(node, service,
-                              ai_req->hints_is_null ? NULL : &ai,
-                              &result);
-
-            /* send_addrinfo_reply() frees result */
-            return send_addrinfo_reply(out_fd, req->id, ret, result, errno, h_errno);
-        }
-
-        case REQUEST_NAMEINFO: {
-            int ret;
-            const nameinfo_request_t *ni_req = (const nameinfo_request_t*) req;
-            char hostbuf[NI_MAXHOST], servbuf[NI_MAXSERV];
-            struct sockaddr_storage sa;
-
-            assert(length >= sizeof(nameinfo_request_t));
-            assert(length == sizeof(nameinfo_request_t) + ni_req->sockaddr_len);
-
-            memcpy(&sa, (const uint8_t *)req + sizeof(nameinfo_request_t), ni_req->sockaddr_len);
-
-            ret = getnameinfo((struct sockaddr *)&sa, ni_req->sockaddr_len,
-                              ni_req->gethost ? hostbuf : NULL, ni_req->gethost ? sizeof(hostbuf) : 0,
-                              ni_req->getserv ? servbuf : NULL, ni_req->getserv ? sizeof(servbuf) : 0,
-                              ni_req->flags);
-
-            return send_nameinfo_reply(out_fd, req->id, ret,
-                                       ret == 0 && ni_req->gethost ? hostbuf : NULL,
-                                       ret == 0 && ni_req->getserv ? servbuf : NULL,
-                                       errno, h_errno);
-        }
-
-        case REQUEST_RES_QUERY:
-        case REQUEST_RES_SEARCH: {
-            int ret;
-            HEADER answer[BUFSIZE/sizeof(HEADER) + 1];
-            const res_request_t *res_req = (const res_request_t *)req;
-            const char *dname;
-
-            assert(length >= sizeof(res_request_t));
-            assert(length == sizeof(res_request_t) + res_req->dname_len);
-
-            dname = (const char *) req + sizeof(res_request_t);
-
-            if (req->type == REQUEST_RES_QUERY)
-                ret = res_query(dname, res_req->class, res_req->type, (unsigned char *) answer, BUFSIZE);
-            else
-                ret = res_search(dname, res_req->class, res_req->type, (unsigned char *) answer, BUFSIZE);
-
-            return send_res_reply(out_fd, req->id, (unsigned char *) answer, ret, errno, h_errno);
-        }
-
-        case REQUEST_TERMINATE:
-            /* Quit */
-            return -1;
-
-        default:
-            ;
-    }
-
-    return 0;
-}
-
-#ifndef HAVE_PTHREAD
-
-static int process_worker(int in_fd, int out_fd) {
-    int have_death_sig = 0;
-    int good_fds[3];
-    int ret = 1;
-
-    const int ignore_sigs[] = {
-        SIGINT,
-        SIGHUP,
-        SIGPIPE,
-        SIGUSR1,
-        SIGUSR2,
-        -1
-    };
-
-    assert(in_fd > 2);
-    assert(out_fd > 2);
-
-    close(0);
-    close(1);
-    close(2);
-
-    if (open("/dev/null", O_RDONLY) != 0)
-        goto fail;
-
-    if (open("/dev/null", O_WRONLY) != 1)
-        goto fail;
-
-    if (open("/dev/null", O_WRONLY) != 2)
-        goto fail;
-
-    if (chdir("/") < 0)
-        goto fail;
-
-    if (geteuid() == 0) {
-        struct passwd *pw;
-        int r;
-
-        if ((pw = getpwnam("nobody"))) {
-#ifdef HAVE_SETRESUID
-            r = setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);
-#elif HAVE_SETREUID
-            r = setreuid(pw->pw_uid, pw->pw_uid);
-#else
-            if ((r = setuid(pw->pw_uid)) >= 0)
-                r = seteuid(pw->pw_uid);
-#endif
-            if (r < 0)
-                goto fail;
-        }
-    }
-
-    if (reset_sigsv(ignore_sigs) < 0)
-        goto fail;
-
-    if (ignore_sigsv(ignore_sigs) < 0)
-        goto fail;
-
-    good_fds[0] = in_fd; good_fds[1] = out_fd; good_fds[2] = -1;
-    if (close_allv(good_fds) < 0)
-        goto fail;
-
-#ifdef PR_SET_PDEATHSIG
-    if (prctl(PR_SET_PDEATHSIG, SIGTERM) >= 0)
-        have_death_sig = 1;
-#endif
-
-    if (!have_death_sig)
-        fd_nonblock(in_fd);
-
-    while (getppid() > 1) { /* if the parent PID is 1 our parent process died. */
-        rheader_t buf[BUFSIZE/sizeof(rheader_t) + 1];
-        ssize_t length;
-
-        if (!have_death_sig) {
-            fd_set fds;
-            struct timeval tv = { 0, 500000 };
-
-            FD_ZERO(&fds);
-            FD_SET(in_fd, &fds);
-
-            if (select(in_fd+1, &fds, NULL, NULL, &tv) < 0)
-                break;
-
-            if (getppid() == 1)
-                break;
-        }
-
-        if ((length = recv(in_fd, buf, sizeof(buf), 0)) <= 0) {
-
-            if (length < 0 &&
-                (errno == EAGAIN || errno == EINTR))
-                continue;
-
-            break;
-        }
-
-        if (handle_request(out_fd, buf, (size_t) length) < 0)
-            break;
-    }
-
-    ret = 0;
-
-fail:
-    send_died(out_fd);
-
-    return ret;
-}
-
-#else
-
-static void* thread_worker(void *p) {
-    asyncns_t *asyncns = p;
-    sigset_t fullset;
-
-    /* No signals in this thread please */
-    sigfillset(&fullset);
-    pthread_sigmask(SIG_BLOCK, &fullset, NULL);
-
-    while (!asyncns->dead) {
-        rheader_t buf[BUFSIZE/sizeof(rheader_t) + 1];
-        ssize_t length;
-
-        if ((length = recv(asyncns->fds[REQUEST_RECV_FD], buf, sizeof(buf), 0)) <= 0) {
-
-            if (length < 0 &&
-                (errno == EAGAIN || errno == EINTR))
-                continue;
-
-            break;
-        }
-
-        if (asyncns->dead)
-            break;
-
-        if (handle_request(asyncns->fds[RESPONSE_SEND_FD], buf, (size_t) length) < 0)
-            break;
-    }
-
-    send_died(asyncns->fds[RESPONSE_SEND_FD]);
-
-    return NULL;
-}
-
-#endif
-
-asyncns_t* asyncns_new(unsigned n_proc) {
-    asyncns_t *asyncns = NULL;
-    int i;
-    assert(n_proc >= 1);
-
-    if (n_proc > MAX_WORKERS)
-        n_proc = MAX_WORKERS;
-
-    if (!(asyncns = malloc(sizeof(asyncns_t)))) {
-        errno = ENOMEM;
-        goto fail;
-    }
-
-    asyncns->dead = 0;
-    asyncns->valid_workers = 0;
-
-    for (i = 0; i < MESSAGE_FD_MAX; i++)
-        asyncns->fds[i] = -1;
-
-    memset(asyncns->queries, 0, sizeof(asyncns->queries));
-
-    if (socketpair(PF_UNIX, SOCK_DGRAM, 0, asyncns->fds) < 0 ||
-        socketpair(PF_UNIX, SOCK_DGRAM, 0, asyncns->fds+2) < 0)
-        goto fail;
-
-    for (i = 0; i < MESSAGE_FD_MAX; i++)
-        fd_cloexec(asyncns->fds[i]);
-
-    for (asyncns->valid_workers = 0; asyncns->valid_workers < n_proc; asyncns->valid_workers++) {
-
-#ifndef HAVE_PTHREAD
-        if ((asyncns->workers[asyncns->valid_workers] = fork()) < 0)
-            goto fail;
-        else if (asyncns->workers[asyncns->valid_workers] == 0) {
-            int ret;
-
-            close(asyncns->fds[REQUEST_SEND_FD]);
-            close(asyncns->fds[RESPONSE_RECV_FD]);
-            ret = process_worker(asyncns->fds[REQUEST_RECV_FD], asyncns->fds[RESPONSE_SEND_FD]);
-            close(asyncns->fds[REQUEST_RECV_FD]);
-            close(asyncns->fds[RESPONSE_SEND_FD]);
-            _exit(ret);
-        }
-#else
-        int r;
-
-        if ((r = pthread_create(&asyncns->workers[asyncns->valid_workers], NULL, thread_worker, asyncns)) != 0) {
-            errno = r;
-            goto fail;
-        }
-#endif
-    }
-
-#ifndef HAVE_PTHREAD
-    close(asyncns->fds[REQUEST_RECV_FD]);
-    close(asyncns->fds[RESPONSE_SEND_FD]);
-    asyncns->fds[REQUEST_RECV_FD] = asyncns->fds[RESPONSE_SEND_FD] = -1;
-#endif
-
-    asyncns->current_index = asyncns->current_id = 0;
-    asyncns->done_head = asyncns->done_tail = NULL;
-    asyncns->n_queries = 0;
-
-    fd_nonblock(asyncns->fds[RESPONSE_RECV_FD]);
-
-    return asyncns;
-
-fail:
-    if (asyncns)
-        asyncns_free(asyncns);
-
-    return NULL;
-}
-
-void asyncns_free(asyncns_t *asyncns) {
-    int i;
-    int saved_errno = errno;
-    unsigned p;
-
-    assert(asyncns);
-
-    asyncns->dead = 1;
-
-    if (asyncns->fds[REQUEST_SEND_FD] >= 0) {
-        rheader_t req;
-
-        memset(&req, 0, sizeof(req));
-        req.type = REQUEST_TERMINATE;
-        req.length = sizeof(req);
-        req.id = 0;
-
-        /* Send one termination packet for each worker */
-        for (p = 0; p < asyncns->valid_workers; p++)
-            send(asyncns->fds[REQUEST_SEND_FD], &req, req.length, MSG_NOSIGNAL);
-    }
-
-    /* Now terminate them and wait until they are gone. */
-    for (p = 0; p < asyncns->valid_workers; p++) {
-#ifndef HAVE_PTHREAD
-        kill(asyncns->workers[p], SIGTERM);
-        for (;;) {
-            if (waitpid(asyncns->workers[p], NULL, 0) >= 0 || errno != EINTR)
-                break;
-        }
-#else
-        for (;;) {
-            if (pthread_join(asyncns->workers[p], NULL) != EINTR)
-                break;
-        }
-#endif
-    }
-
-    /* Close all communication channels */
-    for (i = 0; i < MESSAGE_FD_MAX; i++)
-        if (asyncns->fds[i] >= 0)
-            close(asyncns->fds[i]);
-
-    for (p = 0; p < MAX_QUERIES; p++)
-        if (asyncns->queries[p])
-            asyncns_cancel(asyncns, asyncns->queries[p]);
-
-    free(asyncns);
-
-    errno = saved_errno;
-}
-
-int asyncns_fd(asyncns_t *asyncns) {
-    assert(asyncns);
-
-    return asyncns->fds[RESPONSE_RECV_FD];
-}
-
-static asyncns_query_t *lookup_query(asyncns_t *asyncns, unsigned id) {
-    asyncns_query_t *q;
-    assert(asyncns);
-
-    if ((q = asyncns->queries[id % MAX_QUERIES]))
-        if (q->id == id)
-            return q;
-
-    return NULL;
-}
-
-static void complete_query(asyncns_t *asyncns, asyncns_query_t *q) {
-    assert(asyncns);
-    assert(q);
-    assert(!q->done);
-
-    q->done = 1;
-
-    if ((q->done_prev = asyncns->done_tail))
-        asyncns->done_tail->done_next = q;
-    else
-        asyncns->done_head = q;
-
-    asyncns->done_tail = q;
-    q->done_next = NULL;
-}
-
-static void *unserialize_addrinfo(void *p, struct addrinfo **ret_ai, size_t *length) {
-    addrinfo_serialization_t s;
-    size_t l;
-    struct addrinfo *ai;
-    assert(p);
-    assert(ret_ai);
-    assert(length);
-
-    if (*length < sizeof(addrinfo_serialization_t))
-        return NULL;
-
-    memcpy(&s, p, sizeof(s));
-
-    l = sizeof(addrinfo_serialization_t) + s.ai_addrlen + s.canonname_len;
-    if (*length < l)
-        return NULL;
-
-    if (!(ai = malloc(sizeof(struct addrinfo))))
-        goto fail;
-
-    ai->ai_addr = NULL;
-    ai->ai_canonname = NULL;
-    ai->ai_next = NULL;
-
-    if (s.ai_addrlen && !(ai->ai_addr = malloc(s.ai_addrlen)))
-        goto fail;
-
-    if (s.canonname_len && !(ai->ai_canonname = malloc(s.canonname_len)))
-        goto fail;
-
-    ai->ai_flags = s.ai_flags;
-    ai->ai_family = s.ai_family;
-    ai->ai_socktype = s.ai_socktype;
-    ai->ai_protocol = s.ai_protocol;
-    ai->ai_addrlen = s.ai_addrlen;
-
-    if (ai->ai_addr)
-        memcpy(ai->ai_addr, (uint8_t*) p + sizeof(addrinfo_serialization_t), s.ai_addrlen);
-
-    if (ai->ai_canonname)
-        memcpy(ai->ai_canonname, (uint8_t*) p + sizeof(addrinfo_serialization_t) + s.ai_addrlen, s.canonname_len);
-
-    *length -= l;
-    *ret_ai = ai;
-
-    return (uint8_t*) p + l;
-
-
-fail:
-    if (ai)
-        asyncns_freeaddrinfo(ai);
-
-    return NULL;
-}
-
-static int handle_response(asyncns_t *asyncns, rheader_t *resp, size_t length) {
-    asyncns_query_t *q;
-    assert(asyncns);
-    assert(resp);
-    assert(length >= sizeof(rheader_t));
-    assert(length == resp->length);
-
-    if (resp->type == RESPONSE_DIED) {
-        asyncns->dead = 1;
-        return 0;
-    }
-
-    if (!(q = lookup_query(asyncns, resp->id)))
-        return 0;
-
-    switch (resp->type) {
-        case RESPONSE_ADDRINFO: {
-            const addrinfo_response_t *ai_resp = (addrinfo_response_t*) resp;
-            void *p;
-            size_t l;
-            struct addrinfo *prev = NULL;
-
-            assert(length >= sizeof(addrinfo_response_t));
-            assert(q->type == REQUEST_ADDRINFO);
-
-            q->ret = ai_resp->ret;
-            q->_errno = ai_resp->_errno;
-            q->_h_errno = ai_resp->_h_errno;
-            l = length - sizeof(addrinfo_response_t);
-            p = (uint8_t*) resp + sizeof(addrinfo_response_t);
-
-            while (l > 0 && p) {
-                struct addrinfo *ai = NULL;
-                p = unserialize_addrinfo(p, &ai, &l);
-
-                if (!p || !ai) {
-                    q->ret = EAI_MEMORY;
-                    break;
-                }
-
-                if (prev)
-                    prev->ai_next = ai;
-                else
-                    q->addrinfo = ai;
-
-                prev = ai;
-            }
-
-            complete_query(asyncns, q);
-            break;
-        }
-
-        case RESPONSE_NAMEINFO: {
-            const nameinfo_response_t *ni_resp = (nameinfo_response_t*) resp;
-
-            assert(length >= sizeof(nameinfo_response_t));
-            assert(q->type == REQUEST_NAMEINFO);
-
-            q->ret = ni_resp->ret;
-            q->_errno = ni_resp->_errno;
-            q->_h_errno = ni_resp->_h_errno;
-
-            if (ni_resp->hostlen)
-                if (!(q->host = strndup((const char*) ni_resp + sizeof(nameinfo_response_t), ni_resp->hostlen-1)))
-                    q->ret = EAI_MEMORY;
-
-            if (ni_resp->servlen)
-                if (!(q->serv = strndup((const char*) ni_resp + sizeof(nameinfo_response_t) + ni_resp->hostlen, ni_resp->servlen-1)))
-                    q->ret = EAI_MEMORY;
-
-            complete_query(asyncns, q);
-            break;
-        }
-
-        case RESPONSE_RES: {
-            const res_response_t *res_resp = (res_response_t *)resp;
-
-            assert(length >= sizeof(res_response_t));
-            assert(q->type == REQUEST_RES_QUERY || q->type == REQUEST_RES_SEARCH);
-
-            q->ret = res_resp->ret;
-            q->_errno = res_resp->_errno;
-            q->_h_errno = res_resp->_h_errno;
-
-            if (res_resp->ret >= 0)  {
-                if (!(q->serv = malloc(res_resp->ret))) {
-                    q->ret = -1;
-                    q->_errno = ENOMEM;
-                } else
-                    memcpy(q->serv, (char *)resp + sizeof(res_response_t), res_resp->ret);
-            }
-
-            complete_query(asyncns, q);
-            break;
-        }
-
-        default:
-            ;
-    }
-
-    return 0;
-}
-
-int asyncns_wait(asyncns_t *asyncns, int block) {
-    int handled = 0;
-    assert(asyncns);
-
-    for (;;) {
-        rheader_t buf[BUFSIZE/sizeof(rheader_t) + 1];
-        ssize_t l;
-
-        if (asyncns->dead) {
-            errno = ECHILD;
-            return -1;
-        }
-
-        if (((l = recv(asyncns->fds[RESPONSE_RECV_FD], buf, sizeof(buf), 0)) < 0)) {
-            fd_set fds;
-
-            if (errno != EAGAIN)
-                return -1;
-
-            if (!block || handled)
-                return 0;
-
-            FD_ZERO(&fds);
-            FD_SET(asyncns->fds[RESPONSE_RECV_FD], &fds);
-
-            if (select(asyncns->fds[RESPONSE_RECV_FD]+1, &fds, NULL, NULL, NULL) < 0)
-                return -1;
-
-            continue;
-        }
-
-        if (handle_response(asyncns, buf, (size_t) l) < 0)
-            return -1;
-
-        handled = 1;
-    }
-}
-
-static asyncns_query_t *alloc_query(asyncns_t *asyncns) {
-    asyncns_query_t *q;
-    assert(asyncns);
-
-    if (asyncns->n_queries >= MAX_QUERIES) {
-        errno = ENOMEM;
-        return NULL;
-    }
-
-    while (asyncns->queries[asyncns->current_index]) {
-
-        asyncns->current_index++;
-        asyncns->current_id++;
-
-        while (asyncns->current_index >= MAX_QUERIES)
-            asyncns->current_index -= MAX_QUERIES;
-    }
-
-    if (!(q = asyncns->queries[asyncns->current_index] = malloc(sizeof(asyncns_query_t)))) {
-        errno = ENOMEM;
-        return NULL;
-    }
-
-    asyncns->n_queries++;
-
-    q->asyncns = asyncns;
-    q->done = 0;
-    q->id = asyncns->current_id;
-    q->done_next = q->done_prev = NULL;
-    q->ret = 0;
-    q->_errno = 0;
-    q->_h_errno = 0;
-    q->addrinfo = NULL;
-    q->userdata = NULL;
-    q->host = q->serv = NULL;
-
-    return q;
-}
-
-asyncns_query_t* asyncns_getaddrinfo(asyncns_t *asyncns, const char *node, const char *service, const struct addrinfo *hints) {
-    addrinfo_request_t data[BUFSIZE/sizeof(addrinfo_request_t) + 1];
-    addrinfo_request_t *req = data;
-    asyncns_query_t *q;
-    assert(asyncns);
-    assert(node || service);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return NULL;
-    }
-
-    if (!(q = alloc_query(asyncns)))
-        return NULL;
-
-    memset(req, 0, sizeof(addrinfo_request_t));
-
-    req->node_len = node ? strlen(node)+1 : 0;
-    req->service_len = service ? strlen(service)+1 : 0;
-
-    req->header.id = q->id;
-    req->header.type = q->type = REQUEST_ADDRINFO;
-    req->header.length = sizeof(addrinfo_request_t) + req->node_len + req->service_len;
-
-    if (req->header.length > BUFSIZE) {
-        errno = ENOMEM;
-        goto fail;
-    }
-
-    if (!(req->hints_is_null = !hints)) {
-        req->ai_flags = hints->ai_flags;
-        req->ai_family = hints->ai_family;
-        req->ai_socktype = hints->ai_socktype;
-        req->ai_protocol = hints->ai_protocol;
-    }
-
-    if (node)
-        strcpy((char*) req + sizeof(addrinfo_request_t), node);
-
-    if (service)
-        strcpy((char*) req + sizeof(addrinfo_request_t) + req->node_len, service);
-
-    if (send(asyncns->fds[REQUEST_SEND_FD], req, req->header.length, MSG_NOSIGNAL) < 0)
-        goto fail;
-
-    return q;
-
-fail:
-    if (q)
-        asyncns_cancel(asyncns, q);
-
-    return NULL;
-}
-
-int asyncns_getaddrinfo_done(asyncns_t *asyncns, asyncns_query_t* q, struct addrinfo **ret_res) {
-    int ret;
-    assert(asyncns);
-    assert(q);
-    assert(q->asyncns == asyncns);
-    assert(q->type == REQUEST_ADDRINFO);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return EAI_SYSTEM;
-    }
-
-    if (!q->done)
-        return EAI_AGAIN;
-
-    *ret_res = q->addrinfo;
-    q->addrinfo = NULL;
-
-    ret = q->ret;
-
-    if (ret == EAI_SYSTEM)
-        errno = q->_errno;
-
-    if (ret != 0)
-        h_errno = q->_h_errno;
-
-    asyncns_cancel(asyncns, q);
-
-    return ret;
-}
-
-asyncns_query_t* asyncns_getnameinfo(asyncns_t *asyncns, const struct sockaddr *sa, socklen_t salen, int flags, int gethost, int getserv) {
-    nameinfo_request_t data[BUFSIZE/sizeof(nameinfo_request_t) + 1];
-    nameinfo_request_t *req = data;
-    asyncns_query_t *q;
-
-    assert(asyncns);
-    assert(sa);
-    assert(salen > 0);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return NULL;
-    }
-
-    if (!(q = alloc_query(asyncns)))
-        return NULL;
-
-    memset(req, 0, sizeof(nameinfo_request_t));
-
-    req->header.id = q->id;
-    req->header.type = q->type = REQUEST_NAMEINFO;
-    req->header.length = sizeof(nameinfo_request_t) + salen;
-
-    if (req->header.length > BUFSIZE) {
-        errno = ENOMEM;
-        goto fail;
-    }
-
-    req->flags = flags;
-    req->sockaddr_len = salen;
-    req->gethost = gethost;
-    req->getserv = getserv;
-
-    memcpy((uint8_t*) req + sizeof(nameinfo_request_t), sa, salen);
-
-    if (send(asyncns->fds[REQUEST_SEND_FD], req, req->header.length, MSG_NOSIGNAL) < 0)
-        goto fail;
-
-    return q;
-
-fail:
-    if (q)
-        asyncns_cancel(asyncns, q);
-
-    return NULL;
-}
-
-int asyncns_getnameinfo_done(asyncns_t *asyncns, asyncns_query_t* q, char *ret_host, size_t hostlen, char *ret_serv, size_t servlen) {
-    int ret;
-    assert(asyncns);
-    assert(q);
-    assert(q->asyncns == asyncns);
-    assert(q->type == REQUEST_NAMEINFO);
-    assert(!ret_host || hostlen);
-    assert(!ret_serv || servlen);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return EAI_SYSTEM;
-    }
-
-    if (!q->done)
-        return EAI_AGAIN;
-
-    if (ret_host && q->host) {
-        strncpy(ret_host, q->host, hostlen);
-        ret_host[hostlen-1] = 0;
-    }
-
-    if (ret_serv && q->serv) {
-        strncpy(ret_serv, q->serv, servlen);
-        ret_serv[servlen-1] = 0;
-    }
-
-    ret = q->ret;
-
-    if (ret == EAI_SYSTEM)
-        errno = q->_errno;
-
-    if (ret != 0)
-        h_errno = q->_h_errno;
-
-    asyncns_cancel(asyncns, q);
-
-    return ret;
-}
-
-static asyncns_query_t * asyncns_res(asyncns_t *asyncns, query_type_t qtype, const char *dname, int class, int type) {
-    res_request_t data[BUFSIZE/sizeof(res_request_t) + 1];
-    res_request_t *req = data;
-    asyncns_query_t *q;
-
-    assert(asyncns);
-    assert(dname);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return NULL;
-    }
-
-    if (!(q = alloc_query(asyncns)))
-        return NULL;
-
-    memset(req, 0, sizeof(res_request_t));
-
-    req->dname_len = strlen(dname) + 1;
-
-    req->header.id = q->id;
-    req->header.type = q->type = qtype;
-    req->header.length = sizeof(res_request_t) + req->dname_len;
-
-    if (req->header.length > BUFSIZE) {
-        errno = ENOMEM;
-        goto fail;
-    }
-
-    req->class = class;
-    req->type = type;
-
-    strcpy((char*) req + sizeof(res_request_t), dname);
-
-    if (send(asyncns->fds[REQUEST_SEND_FD], req, req->header.length, MSG_NOSIGNAL) < 0)
-        goto fail;
-
-    return q;
-
-fail:
-    if (q)
-        asyncns_cancel(asyncns, q);
-
-    return NULL;
-}
-
-asyncns_query_t* asyncns_res_query(asyncns_t *asyncns, const char *dname, int class, int type) {
-    return asyncns_res(asyncns, REQUEST_RES_QUERY, dname, class, type);
-}
-
-asyncns_query_t* asyncns_res_search(asyncns_t *asyncns, const char *dname, int class, int type) {
-    return asyncns_res(asyncns, REQUEST_RES_SEARCH, dname, class, type);
-}
-
-int asyncns_res_done(asyncns_t *asyncns, asyncns_query_t* q, unsigned char **answer) {
-    int ret;
-    assert(asyncns);
-    assert(q);
-    assert(q->asyncns == asyncns);
-    assert(q->type == REQUEST_RES_QUERY || q->type == REQUEST_RES_SEARCH);
-    assert(answer);
-
-    if (asyncns->dead) {
-        errno = ECHILD;
-        return -ECHILD;
-    }
-
-    if (!q->done) {
-        errno = EAGAIN;
-        return -EAGAIN;
-    }
-
-    *answer = (unsigned char *)q->serv;
-    q->serv = NULL;
-
-    ret = q->ret;
-
-    if (ret < 0) {
-        errno = q->_errno;
-        h_errno = q->_h_errno;
-    }
-
-    asyncns_cancel(asyncns, q);
-
-    return ret < 0 ? -errno : ret;
-}
-
-asyncns_query_t* asyncns_getnext(asyncns_t *asyncns) {
-    assert(asyncns);
-    return asyncns->done_head;
-}
-
-int asyncns_getnqueries(asyncns_t *asyncns) {
-    assert(asyncns);
-    return asyncns->n_queries;
-}
-
-void asyncns_cancel(asyncns_t *asyncns, asyncns_query_t* q) {
-    int i;
-    int saved_errno = errno;
-
-    assert(asyncns);
-    assert(q);
-    assert(q->asyncns == asyncns);
-    assert(asyncns->n_queries > 0);
-
-    if (q->done) {
-
-        if (q->done_prev)
-            q->done_prev->done_next = q->done_next;
-        else
-            asyncns->done_head = q->done_next;
-
-        if (q->done_next)
-            q->done_next->done_prev = q->done_prev;
-        else
-            asyncns->done_tail = q->done_prev;
-    }
-
-    i = q->id % MAX_QUERIES;
-    assert(asyncns->queries[i] == q);
-    asyncns->queries[i] = NULL;
-
-    asyncns_freeaddrinfo(q->addrinfo);
-    free(q->host);
-    free(q->serv);
-
-    asyncns->n_queries--;
-    free(q);
-
-    errno = saved_errno;
-}
-
-void asyncns_freeaddrinfo(struct addrinfo *ai) {
-    int saved_errno = errno;
-
-    while (ai) {
-        struct addrinfo *next = ai->ai_next;
-
-        free(ai->ai_addr);
-        free(ai->ai_canonname);
-        free(ai);
-
-        ai = next;
-    }
-
-    errno = saved_errno;
-}
-
-void asyncns_freeanswer(unsigned char *answer) {
-    int saved_errno = errno;
-
-    if (!answer)
-        return;
-
-    /* Please note that this function is new in libasyncns 0.4. In
-     * older versions you were supposed to free the answer directly
-     * with free(). Hence, if this function is changed to do more than
-     * just a simple free() this must be considered ABI/API breakage! */
-
-    free(answer);
-
-    errno = saved_errno;
-}
-
-int asyncns_isdone(asyncns_t *asyncns, asyncns_query_t*q) {
-    assert(asyncns);
-    assert(q);
-    assert(q->asyncns == asyncns);
-
-    return q->done;
-}
-
-void asyncns_setuserdata(asyncns_t *asyncns, asyncns_query_t *q, void *userdata) {
-    assert(q);
-    assert(asyncns);
-    assert(q->asyncns = asyncns);
-
-    q->userdata = userdata;
-}
-
-void* asyncns_getuserdata(asyncns_t *asyncns, asyncns_query_t *q) {
-    assert(q);
-    assert(asyncns);
-    assert(q->asyncns = asyncns);
-
-    return q->userdata;
-}
diff --git a/lib/gibber/asyncns.h b/lib/gibber/asyncns.h
deleted file mode 100644
index 9f2cbd6f2..000000000
--- a/lib/gibber/asyncns.h
+++ /dev/null
@@ -1,163 +0,0 @@
-#ifndef fooasyncnshfoo
-#define fooasyncnshfoo
-
-/***
-  This file is part of libasyncns.
-
-  Copyright 2005-2008 Lennart Poettering
-
-  libasyncns 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.
-
-  libasyncns 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 libasyncns. If not, see
-  <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-
-/** \mainpage
- *
- * \section moo Method of operation
- *
- * To use libasyncns allocate an asyncns_t object with
- * asyncns_new(). This will spawn a number of worker threads (or processes, depending on what is available) which
- * are subsequently used to process the queries the controlling
- * program issues via asyncns_getaddrinfo() and
- * asyncns_getnameinfo(). Use asyncns_free() to shut down the worker
- * threads/processes.
- *
- * Since libasyncns may fork off new processes you have to make sure that
- * your program is not irritated by spurious SIGCHLD signals.
- */
-
-/** \example asyncns-test.c
- * An example program */
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-/** An opaque libasyncns session structure */
-typedef struct asyncns asyncns_t;
-
-/** An opaque libasyncns query structure */
-typedef struct asyncns_query asyncns_query_t;
-
-/** Allocate a new libasyncns session with n_proc worker processes/threads */
-asyncns_t* asyncns_new(unsigned n_proc);
-
-/** Free a libasyncns session. This destroys all attached
- * asyncns_query_t objects automatically */
-void asyncns_free(asyncns_t *asyncns);
-
-/** Return the UNIX file descriptor to select() for readability
- * on. Use this function to integrate libasyncns with your custom main
- * loop. */
-int asyncns_fd(asyncns_t *asyncns);
-
-/** Process pending responses. After this function is called you can
- * get the next completed query object(s) using asyncns_getnext(). If
- * block is non-zero wait until at least one response has been
- * processed. If block is zero, process all pending responses and
- * return. */
-int asyncns_wait(asyncns_t *asyncns, int block);
-
-/** Issue a name to address query on the specified session. The
- * arguments are compatible with the ones of libc's
- * getaddrinfo(3). The function returns a new query object. When the
- * query is completed you may retrieve the results using
- * asyncns_getaddrinfo_done().*/
-asyncns_query_t* asyncns_getaddrinfo(asyncns_t *asyncns, const char *node, const char *service, const struct addrinfo *hints);
-
-/** Retrieve the results of a preceding asyncns_getaddrinfo()
- * call. Returns a addrinfo structure and a return value compatible
- * with libc's getaddrinfo(3). The query object q is destroyed by this
- * call and may not be used any further. Make sure to free the
- * returned addrinfo structure with asyncns_freeaddrinfo() and not
- * libc's freeaddrinfo(3)! If the query is not completed yet EAI_AGAIN
- * is returned.*/
-int asyncns_getaddrinfo_done(asyncns_t *asyncns, asyncns_query_t* q, struct addrinfo **ret_res);
-
-/** Issue an address to name query on the specified session. The
- * arguments are compatible with the ones of libc's
- * getnameinfo(3). The function returns a new query object. When the
- * query is completed you may retrieve the results using
- * asyncns_getnameinfo_done(). Set gethost (resp. getserv) to non-zero
- * if you want to query the hostname (resp. the service name). */
-asyncns_query_t* asyncns_getnameinfo(asyncns_t *asyncns, const struct sockaddr *sa, socklen_t salen, int flags, int gethost, int getserv);
-
-/** Retrieve the results of a preceding asyncns_getnameinfo()
- * call. Returns the hostname and the service name in ret_host and
- * ret_serv. The query object q is destroyed by this call and may not
- * be used any further. If the query is not completed yet EAI_AGAIN is
- * returned. */
-int asyncns_getnameinfo_done(asyncns_t *asyncns, asyncns_query_t* q, char *ret_host, size_t hostlen, char *ret_serv, size_t servlen);
-
-/** Issue a resolver query on the specified session. The arguments are
- * compatible with the ones of libc's res_query(3). The function returns a new
- * query object. When the query is completed you may retrieve the results using
- * asyncns_res_done().  */
-asyncns_query_t* asyncns_res_query(asyncns_t *asyncns, const char *dname, int class, int type);
-
-/** Issue an resolver query on the specified session. The arguments are
- * compatible with the ones of libc's res_search(3). The function returns a new
- * query object. When the query is completed you may retrieve the results using
- * asyncns_res_done().  */
-asyncns_query_t* asyncns_res_search(asyncns_t *asyncns, const char *dname, int class, int type);
-
-/** Retrieve the results of a preceding asyncns_res_query() or
- * asyncns_res_search call.  The query object q is destroyed by this
- * call and may not be used any further. Returns a pointer to the
- * answer of the res_query call. If the query is not completed yet
- * -EAGAIN is returned, on failure -errno is returned, otherwise the
- * length of answer is returned. Make sure to free the answer is a
- * call to asyncns_freeanswer(). */
-int asyncns_res_done(asyncns_t *asyncns, asyncns_query_t* q, unsigned char **answer);
-
-/** Return the next completed query object. If no query has been
- * completed yet, return NULL. Please note that you need to run
- * asyncns_wait() before this function will return sensible data.  */
-asyncns_query_t* asyncns_getnext(asyncns_t *asyncns);
-
-/** Return the number of query objects (completed or not) attached to
- * this session */
-int asyncns_getnqueries(asyncns_t *asyncns);
-
-/** Cancel a currently running query. q is is destroyed by this call
- * and may not be used any futher. */
-void asyncns_cancel(asyncns_t *asyncns, asyncns_query_t* q);
-
-/** Free the addrinfo structure as returned by
- * asyncns_getaddrinfo_done(). Make sure to use this functions instead
- * of the libc's freeaddrinfo()! */
-void asyncns_freeaddrinfo(struct addrinfo *ai);
-
-/** Free the answer data as returned by asyncns_res_done().*/
-void asyncns_freeanswer(unsigned char *answer);
-
-/** Returns non-zero when the query operation specified by q has been completed */
-int asyncns_isdone(asyncns_t *asyncns, asyncns_query_t*q);
-
-/** Assign some opaque userdata with a query object */
-void asyncns_setuserdata(asyncns_t *asyncns, asyncns_query_t *q, void *userdata);
-
-/** Return userdata assigned to a query object. Use
- * asyncns_setuserdata() to set this data. If no data has been set
- * prior to this call it returns NULL. */
-void* asyncns_getuserdata(asyncns_t *asyncns, asyncns_query_t *q);
-
-#ifdef  __cplusplus
-}
-#endif
-
-#endif