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[Gaim-commits] SF.net SVN: gaim: [16811] trunk/src
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From: <the...@us...> - 2006-08-17 07:45:07
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Revision: 16811 Author: thekingant Date: 2006-08-17 00:44:52 -0700 (Thu, 17 Aug 2006) ViewCVS: http://svn.sourceforge.net/gaim/?rev=16811&view=rev Log Message: ----------- Split the DNS query stuff out into it's own file. Eventually we should move the dnssrv code into this same file. Maybe even share some code? Also the first steps toward cancelable DNS queries. Modified Paths: -------------- trunk/src/Makefile.am trunk/src/Makefile.mingw trunk/src/protocols/simple/simple.c trunk/src/proxy.c trunk/src/proxy.h trunk/src/stun.c Added Paths: ----------- trunk/src/dnsquery.c trunk/src/dnsquery.h Modified: trunk/src/Makefile.am =================================================================== --- trunk/src/Makefile.am 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/Makefile.am 2006-08-17 07:44:52 UTC (rev 16811) @@ -77,6 +77,7 @@ core.c \ debug.c \ desktopitem.c \ + dnsquery.c \ eventloop.c \ ft.c \ idle.c \ @@ -125,6 +126,7 @@ dbus-maybe.h \ debug.h \ desktopitem.h \ + dnsquery.h \ eventloop.h \ ft.h \ idle.h \ Modified: trunk/src/Makefile.mingw =================================================================== --- trunk/src/Makefile.mingw 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/Makefile.mingw 2006-08-17 07:44:52 UTC (rev 16811) @@ -95,6 +95,7 @@ conversation.c \ core.c \ debug.c \ + dnsquery.c \ dnssrv.c \ eventloop.c \ ft.c \ Added: trunk/src/dnsquery.c =================================================================== --- trunk/src/dnsquery.c (rev 0) +++ trunk/src/dnsquery.c 2006-08-17 07:44:52 UTC (rev 16811) @@ -0,0 +1,774 @@ +/** + * @file dnsquery.c DNS query API + * @ingroup core + * + * gaim + * + * Gaim is the legal property of its developers, whose names are too numerous + * to list here. Please refer to the COPYRIGHT file distributed with this + * source distribution. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "internal.h" +#include "debug.h" +#include "ntlm.h" +#include "util.h" + +struct _GaimDnsqueryData { +}; + +/************************************************************************** + * Global DNS query API + **************************************************************************/ + +#if defined(__unix__) || defined(__APPLE__) + +/* + * This structure represents both a pending DNS request and + * a free child process. + */ +typedef struct _DnsqueryResolverprocess DnsqueryResolverprocess; +struct _DnsqueryResolverprocess { + char *host; + int port; + GaimProxyDnsConnectFunction callback; + gpointer data; + guint inpa; + int fd_in, fd_out; + pid_t dns_pid; +}; + +//static GSList *all_dns_children = NULL; +static GSList *free_dns_children = NULL; +static GQueue *queued_requests = NULL; + +static int number_of_dns_children = 0; + +static const int MAX_DNS_CHILDREN = 2; + +typedef struct { + char hostname[512]; + int port; +} dns_params_t; + +typedef struct { + dns_params_t params; + GaimProxyDnsConnectFunction callback; + gpointer data; +} queued_dns_request_t; + +/* + * Begin the DNS resolver child process functions. + */ +#ifdef HAVE_SIGNAL_H +static void +trap_gdb_bug() +{ + const char *message = + "Gaim's DNS child got a SIGTRAP signal.\n" + "This can be caused by trying to run gaim inside gdb.\n" + "There is a known gdb bug which prevents this. Supposedly gaim\n" + "should have detected you were using gdb and used an ugly hack,\n" + "check cope_with_gdb_brokenness() in dnsquery.c.\n\n" + "For more info about this bug, see http://sources.redhat.com/ml/gdb/2001-07/msg00349.html\n"; + fputs("\n* * *\n",stderr); + fputs(message,stderr); + fputs("* * *\n\n",stderr); + execlp("xmessage","xmessage","-center", message, NULL); + _exit(1); +} +#endif + +static void +cope_with_gdb_brokenness() +{ +#ifdef __linux__ + static gboolean already_done = FALSE; + char s[256], e[512]; + int n; + pid_t ppid; + + if (already_done) + return; + + already_done = TRUE; + ppid = getppid(); + snprintf(s, sizeof(s), "/proc/%d/exe", ppid); + n = readlink(s, e, sizeof(e)); + if (n < 0) + return; + + e[MIN(n,sizeof(e)-1)] = '\0'; + + if (strstr(e,"gdb")) + { + gaim_debug_info("dnsquery", + "Debugger detected, performing useless query...\n"); + gethostbyname("x.x.x.x.x"); + } +#endif +} + +/** + * When doing DNS queries on Unix and OS-X, we fork off a separate + * process and communicate with it using pipes. This function is + * called shortly after the child is forked, and the function exits + * the process after it's no longer needed. + */ +static void +gaim_dns_resolverprocess(int child_out, int child_in, gboolean show_debug) +{ + dns_params_t dns_params; + const size_t zero = 0; + int rc; +#ifdef HAVE_GETADDRINFO + struct addrinfo hints, *res, *tmp; + char servname[20]; +#else + struct sockaddr_in sin; + const size_t addrlen = sizeof(sin); +#endif + +#ifdef HAVE_SIGNAL_H + signal(SIGHUP, SIG_DFL); + signal(SIGINT, SIG_DFL); + signal(SIGQUIT, SIG_DFL); + signal(SIGCHLD, SIG_DFL); + signal(SIGTERM, SIG_DFL); + signal(SIGTRAP, trap_gdb_bug); +#endif + + /* + * We resolve 1 host name for each iteration of this + * while loop. + * + * The top half of this reads in the hostname and port + * number from the socket with our parent. The bottom + * half of this resolves the IP (blocking) and sends + * the result back to our parent, when finished. + */ + while (1) + { + const char ch = 'Y'; + fd_set fds; + struct timeval tv = { .tv_sec = 40 , .tv_usec = 0 }; + + FD_ZERO(&fds); + FD_SET(child_in, &fds); + rc = select(child_in + 1, &fds, NULL, NULL, &tv); + if (rc < 0) { + if (show_debug) + printf("dns[%d]: select failed\n", getpid()); + close(child_out); + close(child_in); + _exit(1); + } + if (rc == 0) { + if (show_debug) + printf("dns[%d]: nobody needs me... =(\n", getpid()); + break; + } + + rc = read(child_in, &dns_params, sizeof(dns_params_t)); + if (rc < 0) { + if (show_debug) + printf("dns[%d]: read failed\n", getpid()); + close(child_out); + close(child_in); + _exit(1); + } + if (rc == 0) { + if (show_debug) + printf("dns[%d]: Oops, father has gone, wait for me, wait...!\n", getpid()); + break; + } + if (dns_params.hostname[0] == '\0') { + printf("dns[%d]: hostname = \"\" (port = %d)!!!\n", getpid(), dns_params.port); + close(child_out); + close(child_in); + _exit(1); + } + /* Tell our parent that we read the data successfully */ + write(child_out, &ch, sizeof(ch)); + + /* We have the hostname and port, now resolve the IP */ + +#ifdef HAVE_GETADDRINFO + g_snprintf(servname, sizeof(servname), "%d", dns_params.port); + memset(&hints, 0, sizeof(hints)); + + /* + * This is only used to convert a service + * name to a port number. As we know we are + * passing a number already, we know this + * value will not be really used by the C + * library. + */ + hints.ai_socktype = SOCK_STREAM; + rc = getaddrinfo(dns_params.hostname, servname, &hints, &res); + write(child_out, &rc, sizeof(rc)); + if (rc != 0) { + close(child_out); + if (show_debug) + printf("dns[%d] Error: getaddrinfo returned %d\n", + getpid(), rc); + dns_params.hostname[0] = '\0'; + continue; + } + for (tmp = res; tmp != NULL; tmp = tmp->ai_next) + { + size_t ai_addrlen = tmp->ai_addrlen; + write(child_out, &ai_addrlen, sizeof(ai_addrlen)); + write(child_out, tmp->ai_addr, tmp->ai_addrlen); + } + freeaddrinfo(res); + write(child_out, &zero, sizeof(zero)); +#else + if (!inet_aton(dns_params.hostname, &sin.sin_addr)) + { + struct hostent *hp; + + hp = gethostbyname(dns_params.hostname); + if (hp == NULL) + { + if (show_debug) + printf("DNS Error: %d\n", h_errno); + write(child_out, &h_errno, sizeof(int)); + close(child_out); + close(child_in); + _exit(1); + } + memset(&sin, 0, sizeof(struct sockaddr_in)); + memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); + sin.sin_family = hp->h_addrtype; + } else + sin.sin_family = AF_INET; + + sin.sin_port = htons(dns_params.port); + write(child_out, &addrlen, sizeof(addrlen)); + write(child_out, &sin, addrlen); + write(child_out, &zero, sizeof(zero)); +#endif + dns_params.hostname[0] = '\0'; + } + + close(child_out); + close(child_in); + + _exit(0); +} + +static DnsqueryResolverprocess * +gaim_dns_new_resolverprocess(gboolean show_debug) +{ + DnsqueryResolverprocess *req; + int child_out[2], child_in[2]; + + /* Create pipes for communicating with the child process */ + if (pipe(child_out) || pipe(child_in)) { + gaim_debug_error("dnsquery", + "Could not create pipes: %s\n", strerror(errno)); + return NULL; + } + + req = g_new(DnsqueryResolverprocess, 1); + + cope_with_gdb_brokenness(); + + /* Fork! */ + req->dns_pid = fork(); + + /* If we are the child process... */ + if (req->dns_pid == 0) { + /* We should not access the parent's side of the pipes, so close them */ + close(child_out[0]); + close(child_in[1]); + + gaim_dns_resolverprocess(child_out[1], child_in[0], show_debug); + /* The thread calls _exit() rather than returning, so we never get here */ + } + + /* We should not access the child's side of the pipes, so close them */ + close(child_out[1]); + close(child_in[0]); + if (req->dns_pid == -1) { + gaim_debug_error("dnsquery", + "Could not create child process for DNS: %s\n", + strerror(errno)); + g_free(req); + return NULL; + } + + req->fd_out = child_out[0]; + req->fd_in = child_in[1]; + number_of_dns_children++; + gaim_debug_info("dnsquery", + "Created new DNS child %d, there are now %d children.\n", + req->dns_pid, number_of_dns_children); + + return req; +} +/* + * End the DNS resolver child process functions. + */ + +/* + * Begin the functions for dealing with the DNS child processes. + */ +static void +req_free(DnsqueryResolverprocess *req) +{ + g_return_if_fail(req != NULL); + + close(req->fd_in); + close(req->fd_out); + + g_free(req->host); + g_free(req); + + number_of_dns_children--; +} + +static int +send_dns_request_to_child(DnsqueryResolverprocess *req, dns_params_t *dns_params) +{ + char ch; + int rc; + pid_t pid; + + /* This waitpid might return the child's PID if it has recently + * exited, or it might return an error if it exited "long + * enough" ago that it has already been reaped; in either + * instance, we can't use it. */ + if ((pid = waitpid (req->dns_pid, NULL, WNOHANG)) > 0) { + gaim_debug_warning("dnsquery", + "DNS child %d no longer exists\n", req->dns_pid); + return -1; + } else if (pid < 0) { + gaim_debug_warning("dnsquery", + "Wait for DNS child %d failed: %s\n", + req->dns_pid, strerror(errno)); + return -1; + } + + /* Let's contact this lost child! */ + rc = write(req->fd_in, dns_params, sizeof(*dns_params)); + if (rc < 0) { + gaim_debug_error("dnsquery", + "Unable to write to DNS child %d: %d\n", + req->dns_pid, strerror(errno)); + close(req->fd_in); + return -1; + } + + g_return_val_if_fail(rc == sizeof(*dns_params), -1); + + /* Did you hear me? (This avoids some race conditions) */ + rc = read(req->fd_out, &ch, sizeof(ch)); + if (rc != 1 || ch != 'Y') + { + gaim_debug_warning("dnsquery", + "DNS child %d not responding. Killing it!\n", + req->dns_pid); + kill(req->dns_pid, SIGKILL); + return -1; + } + + gaim_debug_info("dnsquery", + "Successfully sent DNS request to child %d\n", req->dns_pid); + + return 0; +} + +static void +host_resolved(gpointer data, gint source, GaimInputCondition cond); + +static void +release_dns_child(DnsqueryResolverprocess *req) +{ + g_free(req->host); + req->host = NULL; + + if (queued_requests && !g_queue_is_empty(queued_requests)) { + queued_dns_request_t *r = g_queue_pop_head(queued_requests); + req->host = g_strdup(r->params.hostname); + req->port = r->params.port; + req->callback = r->callback; + req->data = r->data; + + gaim_debug_info("dnsquery", + "Processing queued DNS query for '%s' with child %d\n", + req->host, req->dns_pid); + + if (send_dns_request_to_child(req, &(r->params)) != 0) { + req_free(req); + req = NULL; + + gaim_debug_warning("dnsquery", + "Intent of process queued query of '%s' failed, " + "requeueing...\n", r->params.hostname); + g_queue_push_head(queued_requests, r); + } else { + req->inpa = gaim_input_add(req->fd_out, GAIM_INPUT_READ, host_resolved, req); + g_free(r); + } + + } else { + req->host = NULL; + req->callback = NULL; + req->data = NULL; + free_dns_children = g_slist_append(free_dns_children, req); + } +} + +static void +host_resolved(gpointer data, gint source, GaimInputCondition cond) +{ + DnsqueryResolverprocess *req = (DnsqueryResolverprocess*)data; + int rc, err; + GSList *hosts = NULL; + struct sockaddr *addr = NULL; + size_t addrlen; + + gaim_debug_info("dnsquery", "Got response for '%s'\n", req->host); + gaim_input_remove(req->inpa); + + rc = read(req->fd_out, &err, sizeof(err)); + if ((rc == 4) && (err != 0)) + { + gchar *message; +#ifdef HAVE_GETADDRINFO + message = g_strdup_printf("DNS error: %s (pid=%d)", + gai_strerror(err), req->dns_pid); +#else + message = g_strdup_printf("DNS error: %d (pid=%d)", + err, req->dns_pid); +#endif + gaim_debug_error("dnsquery", "%s\n", message); + req->callback(NULL, req->data, message); + g_free(message); + release_dns_child(req); + return; + } + + if (rc > 0) + { + while (rc > 0) { + rc = read(req->fd_out, &addrlen, sizeof(addrlen)); + if (rc > 0 && addrlen > 0) { + addr = g_malloc(addrlen); + rc = read(req->fd_out, addr, addrlen); + hosts = g_slist_append(hosts, GINT_TO_POINTER(addrlen)); + hosts = g_slist_append(hosts, addr); + } else { + break; + } + } + } else if (rc == -1) { + gchar *message; + message = g_strdup_printf("Error reading from DNS child: %s", strerror(errno)); + gaim_debug_error("dnsquery", "%s\n", message); + req->callback(NULL, req->data, message); + g_free(message); + req_free(req); + return; + } else if (rc == 0) { + gchar *message; + close(req->fd_out); + message = g_strdup_printf("EOF reading from DNS child"); + gaim_debug_error("dnsquery", "%s\n", message); + req->callback(NULL, req->data, message); + g_free(message); + req_free(req); + return; + } + +/* wait4(req->dns_pid, NULL, WNOHANG, NULL); */ + + req->callback(hosts, req->data, NULL); + + release_dns_child(req); +} +/* + * End the functions for dealing with the DNS child processes. + */ + +GaimDnsqueryData * +gaim_dnsquery_a(const char *hostname, int port, GaimDnsqueryConnectFunction callback, gpointer data) +{ + GaimDnsqueryData *query_data; + DnsqueryResolverprocess *req = NULL; + dns_params_t dns_params; + gchar *host_temp; + gboolean show_debug; + + show_debug = gaim_debug_is_enabled(); + + host_temp = g_strstrip(g_strdup(hostname)); + strncpy(dns_params.hostname, host_temp, sizeof(dns_params.hostname) - 1); + g_free(host_temp); + dns_params.hostname[sizeof(dns_params.hostname) - 1] = '\0'; + dns_params.port = port; + + /* + * If we have any children, attempt to have them perform the DNS + * query. If we're able to send the query to a child, then req + * will be set to the DnsqueryResolverprocess. Otherwise, req will + * be NULL and we'll need to create a new DNS request child. + */ + while (free_dns_children != NULL) + { + req = free_dns_children->data; + free_dns_children = g_slist_remove(free_dns_children, req); + + if (send_dns_request_to_child(req, &dns_params) == 0) + /* We found an acceptable child, yay */ + break; + + req_free(req); + req = NULL; + } + + /* We need to create a new DNS request child */ + if (req == NULL) + { + if (number_of_dns_children >= MAX_DNS_CHILDREN) + { + queued_dns_request_t *r = g_new(queued_dns_request_t, 1); + memcpy(&(r->params), &dns_params, sizeof(dns_params)); + r->callback = callback; + r->data = data; + if (!queued_requests) + queued_requests = g_queue_new(); + g_queue_push_tail(queued_requests, r); + + gaim_debug_info("dnsquery", + "DNS query for '%s' queued\n", dns_params.hostname); + + return query_data; + } + + req = gaim_dns_new_resolverprocess(show_debug); + if (req == NULL) + { + gaim_debug_error("dnsquery", "oh dear, this is going to explode, I give up\n"); + return NULL; + } + send_dns_request_to_child(req, &dns_params); + } + + req->host = g_strdup(hostname); + req->port = port; + req->callback = callback; + req->data = data; + req->inpa = gaim_input_add(req->fd_out, GAIM_INPUT_READ, host_resolved, req); + + return query_data; +} + +#elif defined _WIN32 /* end __unix__ || __APPLE__ */ + +typedef struct _dns_tdata { + char *hostname; + int port; + GaimProxyDnsConnectFunction callback; + gpointer data; + GSList *hosts; + char *errmsg; +} dns_tdata; + +static gboolean dns_main_thread_cb(gpointer data) +{ + dns_tdata *td = (dns_tdata*)data; + if (td->errmsg != NULL) { + gaim_debug_info("dnsquery", "%s\n", td->errmsg); + } + td->callback(td->hosts, td->data, td->errmsg); + g_free(td->hostname); + g_free(td->errmsg); + g_free(td); + return FALSE; +} + +static gpointer +dns_thread(gpointer data) +{ + +#ifdef HAVE_GETADDRINFO + int rc; + struct addrinfo hints, *res, *tmp; + char servname[20]; +#else + struct sockaddr_in sin; + struct hostent *hp; +#endif + dns_tdata *td = (dns_tdata*)data; + +#ifdef HAVE_GETADDRINFO + g_snprintf(servname, sizeof(servname), "%d", td->port); + memset(&hints, 0, sizeof(hints)); + + /* This is only used to convert a service + * name to a port number. As we know we are + * passing a number already, we know this + * value will not be really used by the C + * library. + */ + hints.ai_socktype = SOCK_STREAM; + rc = getaddrinfo(td->hostname, servname, &hints, &res); + if (rc == 0) + { + tmp = res; + while(res) { + td->hosts = g_slist_append(td->hosts, + GSIZE_TO_POINTER(res->ai_addrlen)); + td->hosts = g_slist_append(td->hosts, + g_memdup(res->ai_addr, res->ai_addrlen)); + res = res->ai_next; + } + freeaddrinfo(tmp); + } + else + { + td->errmsg = g_strdup_printf("DNS getaddrinfo(\"%s\", \"%s\") error: %d", td->hostname, servname, rc); + } +#else + hp = gethostbyname(td->hostname); + if (hp != NULL) + { + memset(&sin, 0, sizeof(struct sockaddr_in)); + memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); + sin.sin_family = hp->h_addrtype; + sin.sin_port = htons(td->port); + + td->hosts = g_slist_append(td->hosts, + GSIZE_TO_POINTER(sizeof(sin))); + td->hosts = g_slist_append(td->hosts, + g_memdup(&sin, sizeof(sin))); + } else { + td->errmsg = g_strdup_printf("DNS gethostbyname(\"%s\") error: %d", td->hostname, h_errno); + } +#endif + /* back to main thread */ + g_idle_add(dns_main_thread_cb, td); + + return 0; +} + +GaimDnsqueryData * +gaim_dnsquery_a(const char *hostname, int port, + GaimProxyDnsConnectFunction callback, gpointer data) +{ + GaimDnsqueryData *query_data; + dns_tdata *td; + struct sockaddr_in sin; + GError* err = NULL; + + if (inet_aton(hostname, &sin.sin_addr)) + { + GSList *hosts = NULL; + sin.sin_family = AF_INET; + sin.sin_port = htons(port); + hosts = g_slist_append(hosts, GINT_TO_POINTER(sizeof(sin))); + hosts = g_slist_append(hosts, g_memdup(&sin, sizeof(sin))); + callback(hosts, data, NULL); + return query_data; + } + + gaim_debug_info("dnsquery", "DNS Lookup for: %s\n", hostname); + td = g_new0(dns_tdata, 1); + td->hostname = g_strdup(hostname); + td->port = port; + td->callback = callback; + td->data = data; + + if (!g_thread_create(dns_thread, td, FALSE, &err)) + { + gaim_debug_error("dnsquery", "DNS thread create failure: %s\n", err?err->message:""); + g_error_free(err); + g_free(td->hostname); + g_free(td); + return NULL; + } + + return query_data; +} + +#else /* not __unix__ or __APPLE__ or _WIN32 */ + +typedef struct { + gpointer data; + size_t addrlen; + struct sockaddr *addr; + GaimProxyDnsConnectFunction callback; +} DnsqueryResolverprocess; + +static gboolean host_resolved(gpointer data) +{ + DnsqueryResolverprocess *req = (DnsqueryResolverprocess*)data; + GSList *hosts = NULL; + hosts = g_slist_append(hosts, GINT_TO_POINTER(req->addrlen)); + hosts = g_slist_append(hosts, req->addr); + req->callback(hosts, req->data, NULL); + g_free(req); + return FALSE; +} + +GaimDnsqueryData * +gaim_dnsquery_a(const char *hostname, int port, + GaimProxyDnsConnectFunction callback, gpointer data) +{ + GaimDnsqueryData *query_data; + struct sockaddr_in sin; + DnsqueryResolverprocess *req; + + if (!inet_aton(hostname, &sin.sin_addr)) + { + struct hostent *hp; + hp = gethostbyname(hostname); + if (hp == NULL) + { + gaim_debug_error("dnsquery", + "gaim_gethostbyname(\"%s\", %d) failed: %d\n", + hostname, port, h_errno); + return NULL; + } + memset(&sin, 0, sizeof(struct sockaddr_in)); + memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); + sin.sin_family = hp->h_addrtype; + } else + sin.sin_family = AF_INET; + sin.sin_port = htons(port); + + req = g_new(DnsqueryResolverprocess, 1); + req->addr = (struct sockaddr*) g_memdup(&sin, sizeof(sin)); + req->addrlen = sizeof(sin); + req->data = data; + req->callback = callback; + gaim_timeout_add(10, host_resolved, req); + + return query_data; +} + +#endif /* not __unix__ or __APPLE__ or _WIN32 */ + +void +gaim_dnsquery_destroy(GaimDnsqueryData *query_data) +{ + g_free(query_data); +} Property changes on: trunk/src/dnsquery.c ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Added: trunk/src/dnsquery.h =================================================================== --- trunk/src/dnsquery.h (rev 0) +++ trunk/src/dnsquery.h 2006-08-17 07:44:52 UTC (rev 16811) @@ -0,0 +1,76 @@ +/** + * @file dnsquery.h DNS query API + * @ingroup core + * + * gaim + * + * Gaim is the legal property of its developers, whose names are too numerous + * to list here. Please refer to the COPYRIGHT file distributed with this + * source distribution. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _GAIM_DNSQUERY_H_ +#define _GAIM_DNSQUERY_H_ + +#include <glib.h> + +typedef struct _GaimDnsqueryData GaimDnsqueryData; + +/** + * The "hosts" parameter is a linked list containing pairs of + * one size_t addrlen and one struct sockaddr *addr. + */ +typedef void (*GaimDnsqueryConnectFunction)(GSList *hosts, gpointer data, const char *error_message); + + +#ifdef __cplusplus +extern "C" { +#endif + +/**************************************************************************/ +/** @name DNS query API */ +/**************************************************************************/ +/*@{*/ + +/** + * Do an asynchronous DNS query. + * + * @param hostname The hostname to resolve + * @param port A portnumber which is stored in the struct sockaddr + * @param callback Callback to call after resolving + * @param data Extra data for the callback function + * + * @return NULL if there was an error, or a reference to a data + * structure that can be used to cancel the pending + * connection, if needed. + */ +GaimDnsqueryData *gaim_dnsquery_a(const char *hostname, int port, GaimDnsqueryConnectFunction callback, gpointer data); + +/** + * Cancel a DNS query. + * + * @param query_data A pointer to the DNS query data that you want + * to cancel. + */ +void gaim_dnsquery_destroy(GaimDnsqueryData *query_data); + +/*@}*/ + +#ifdef __cplusplus +} +#endif + +#endif /* _GAIM_DNSQUERY_H_ */ Property changes on: trunk/src/dnsquery.h ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Modified: trunk/src/protocols/simple/simple.c =================================================================== --- trunk/src/protocols/simple/simple.c 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/protocols/simple/simple.c 2006-08-17 07:44:52 UTC (rev 16811) @@ -30,6 +30,7 @@ #include "blist.h" #include "conversation.h" #include "debug.h" +#include "dnsquery.h" #include "notify.h" #include "privacy.h" #include "prpl.h" @@ -1621,7 +1622,7 @@ } else { /* UDP */ gaim_debug_info("simple", "using udp with server %s and port %d\n", hostname, port); - gaim_gethostbyname_async(hostname, port, simple_udp_host_resolved, sip); + gaim_dnsquery_a(hostname, port, simple_udp_host_resolved, sip); } } Modified: trunk/src/proxy.c =================================================================== --- trunk/src/proxy.c 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/proxy.c 2006-08-17 07:44:52 UTC (rev 16811) @@ -31,6 +31,7 @@ #include "internal.h" #include "cipher.h" +#include "dnsquery.h" #include "debug.h" #include "notify.h" #include "ntlm.h" @@ -46,6 +47,7 @@ int fd; guint inpa; GaimProxyInfo *gpi; + GaimDnsqueryData *query_data; /** * This contains alternating length/char* values. The char* @@ -307,6 +309,11 @@ connect_infos = g_slist_remove(connect_infos, connect_info); + /* + if (connect_info->query_data != NULL) + gaim_dnsquery_destroy(connect_info->query_data); + */ + while (connect_info->hosts != NULL) { /* Discard the length... */ @@ -351,681 +358,7 @@ gaim_proxy_connect_info_destroy(connect_info); } -#if defined(__unix__) || defined(__APPLE__) - -/* - * This structure represents both a pending DNS request and - * a free child process. - */ -typedef struct { - char *host; - int port; - GaimProxyDnsConnectFunction callback; - gpointer data; - guint inpa; - int fd_in, fd_out; - pid_t dns_pid; -} pending_dns_request_t; - -static GSList *free_dns_children = NULL; -static GQueue *queued_requests = NULL; - -static int number_of_dns_children = 0; - -static const int MAX_DNS_CHILDREN = 2; - -typedef struct { - char hostname[512]; - int port; -} dns_params_t; - -typedef struct { - dns_params_t params; - GaimProxyDnsConnectFunction callback; - gpointer data; -} queued_dns_request_t; - -/* - * Begin the DNS resolver child process functions. - */ -#ifdef HAVE_SIGNAL_H static void -trap_gdb_bug() -{ - const char *message = - "Gaim's DNS child got a SIGTRAP signal.\n" - "This can be caused by trying to run gaim inside gdb.\n" - "There is a known gdb bug which prevents this. Supposedly gaim\n" - "should have detected you were using gdb and used an ugly hack,\n" - "check cope_with_gdb_brokenness() in proxy.c.\n\n" - "For more info about this bug, see http://sources.redhat.com/ml/gdb/2001-07/msg00349.html\n"; - fputs("\n* * *\n",stderr); - fputs(message,stderr); - fputs("* * *\n\n",stderr); - execlp("xmessage","xmessage","-center", message, NULL); - _exit(1); -} -#endif - -static void -cope_with_gdb_brokenness() -{ -#ifdef __linux__ - static gboolean already_done = FALSE; - char s[256], e[512]; - int n; - pid_t ppid; - - if(already_done) - return; - already_done = TRUE; - ppid = getppid(); - snprintf(s, sizeof(s), "/proc/%d/exe", ppid); - n = readlink(s, e, sizeof(e)); - if(n < 0) - return; - - e[MIN(n,sizeof(e)-1)] = '\0'; - - if(strstr(e,"gdb")) { - gaim_debug_info("dns", - "Debugger detected, performing useless query...\n"); - gethostbyname("x.x.x.x.x"); - } -#endif -} - -static void -gaim_dns_resolverthread(int child_out, int child_in, gboolean show_debug) -{ - dns_params_t dns_params; - const size_t zero = 0; - int rc; -#ifdef HAVE_GETADDRINFO - struct addrinfo hints, *res, *tmp; - char servname[20]; -#else - struct sockaddr_in sin; - const size_t addrlen = sizeof(sin); -#endif - -#ifdef HAVE_SIGNAL_H - signal(SIGHUP, SIG_DFL); - signal(SIGINT, SIG_DFL); - signal(SIGQUIT, SIG_DFL); - signal(SIGCHLD, SIG_DFL); - signal(SIGTERM, SIG_DFL); - signal(SIGTRAP, trap_gdb_bug); -#endif - - /* - * We resolve 1 host name for each iteration of this - * while loop. - * - * The top half of this reads in the hostname and port - * number from the socket with our parent. The bottom - * half of this resolves the IP (blocking) and sends - * the result back to our parent, when finished. - */ - while (1) { - const char ch = 'Y'; - fd_set fds; - struct timeval tv = { .tv_sec = 40 , .tv_usec = 0 }; - FD_ZERO(&fds); - FD_SET(child_in, &fds); - rc = select(child_in + 1, &fds, NULL, NULL, &tv); - if (!rc) { - if (show_debug) - printf("dns[%d]: nobody needs me... =(\n", getpid()); - break; - } - rc = read(child_in, &dns_params, sizeof(dns_params_t)); - if (rc < 0) { - perror("read()"); - break; - } - if (rc == 0) { - if (show_debug) - printf("dns[%d]: Oops, father has gone, wait for me, wait...!\n", getpid()); - _exit(0); - } - if (dns_params.hostname[0] == '\0') { - printf("dns[%d]: hostname = \"\" (port = %d)!!!\n", getpid(), dns_params.port); - _exit(1); - } - /* Tell our parent that we read the data successfully */ - write(child_out, &ch, sizeof(ch)); - - /* We have the hostname and port, now resolve the IP */ - -#ifdef HAVE_GETADDRINFO - g_snprintf(servname, sizeof(servname), "%d", dns_params.port); - memset(&hints, 0, sizeof(hints)); - - /* This is only used to convert a service - * name to a port number. As we know we are - * passing a number already, we know this - * value will not be really used by the C - * library. - */ - hints.ai_socktype = SOCK_STREAM; - rc = getaddrinfo(dns_params.hostname, servname, &hints, &res); - write(child_out, &rc, sizeof(rc)); - if (rc != 0) { - close(child_out); - if (show_debug) - printf("dns[%d] Error: getaddrinfo returned %d\n", - getpid(), rc); - dns_params.hostname[0] = '\0'; - continue; - } - tmp = res; - while (res) { - size_t ai_addrlen = res->ai_addrlen; - write(child_out, &ai_addrlen, sizeof(ai_addrlen)); - write(child_out, res->ai_addr, res->ai_addrlen); - res = res->ai_next; - } - freeaddrinfo(tmp); - write(child_out, &zero, sizeof(zero)); -#else - if (!inet_aton(dns_params.hostname, &sin.sin_addr)) { - struct hostent *hp; - if (!(hp = gethostbyname(dns_params.hostname))) { - write(child_out, &h_errno, sizeof(int)); - close(child_out); - if (show_debug) - printf("DNS Error: %d\n", h_errno); - _exit(0); - } - memset(&sin, 0, sizeof(struct sockaddr_in)); - memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); - sin.sin_family = hp->h_addrtype; - } else - sin.sin_family = AF_INET; - - sin.sin_port = htons(dns_params.port); - write(child_out, &addrlen, sizeof(addrlen)); - write(child_out, &sin, addrlen); - write(child_out, &zero, sizeof(zero)); -#endif - dns_params.hostname[0] = '\0'; - } - - close(child_out); - close(child_in); - - _exit(0); -} - -static pending_dns_request_t * -gaim_dns_new_resolverthread(gboolean show_debug) -{ - pending_dns_request_t *req; - int child_out[2], child_in[2]; - - /* Create pipes for communicating with the child process */ - if (pipe(child_out) || pipe(child_in)) { - gaim_debug_error("dns", - "Could not create pipes: %s\n", strerror(errno)); - return NULL; - } - - req = g_new(pending_dns_request_t, 1); - - cope_with_gdb_brokenness(); - - /* Fork! */ - req->dns_pid = fork(); - - /* If we are the child process... */ - if (req->dns_pid == 0) { - /* We should not access the parent's side of the pipes, so close them */ - close(child_out[0]); - close(child_in[1]); - - gaim_dns_resolverthread(child_out[1], child_in[0], show_debug); - /* The thread calls _exit() rather than returning, so we never get here */ - } - - /* We should not access the child's side of the pipes, so close them */ - close(child_out[1]); - close(child_in[0]); - if (req->dns_pid == -1) { - gaim_debug_error("dns", - "Could not create child process for DNS: %s\n", - strerror(errno)); - g_free(req); - return NULL; - } - - req->fd_out = child_out[0]; - req->fd_in = child_in[1]; - number_of_dns_children++; - gaim_debug_info("dns", - "Created new DNS child %d, there are now %d children.\n", - req->dns_pid, number_of_dns_children); - - return req; -} -/* - * End the DNS resolver child process functions. - */ - -/* - * Begin the functions for dealing with the DNS child processes. - */ -static void -req_free(pending_dns_request_t *req) -{ - g_return_if_fail(req != NULL); - - close(req->fd_in); - close(req->fd_out); - - g_free(req->host); - g_free(req); - - number_of_dns_children--; -} - -static int -send_dns_request_to_child(pending_dns_request_t *req, dns_params_t *dns_params) -{ - char ch; - int rc; - pid_t pid; - - /* This waitpid might return the child's PID if it has recently - * exited, or it might return an error if it exited "long - * enough" ago that it has already been reaped; in either - * instance, we can't use it. */ - if ((pid = waitpid (req->dns_pid, NULL, WNOHANG)) > 0) { - gaim_debug_warning("dns", - "DNS child %d no longer exists\n", req->dns_pid); - return -1; - } else if (pid < 0) { - gaim_debug_warning("dns", - "Wait for DNS child %d failed: %s\n", - req->dns_pid, strerror(errno)); - return -1; - } - - /* Let's contact this lost child! */ - rc = write(req->fd_in, dns_params, sizeof(*dns_params)); - if (rc < 0) { - gaim_debug_error("dns", - "Unable to write to DNS child %d: %d\n", - req->dns_pid, strerror(errno)); - close(req->fd_in); - return -1; - } - - g_return_val_if_fail(rc == sizeof(*dns_params), -1); - - /* Did you hear me? (This avoids some race conditions) */ - rc = read(req->fd_out, &ch, sizeof(ch)); - if (rc != 1 || ch != 'Y') - { - gaim_debug_warning("dns", - "DNS child %d not responding. Killing it!\n", - req->dns_pid); - kill(req->dns_pid, SIGKILL); - return -1; - } - - gaim_debug_info("dns", - "Successfully sent DNS request to child %d\n", req->dns_pid); - - return 0; -} - -static void -host_resolved(gpointer data, gint source, GaimInputCondition cond); - -static void -release_dns_child(pending_dns_request_t *req) -{ - g_free(req->host); - req->host = NULL; - - if (queued_requests && !g_queue_is_empty(queued_requests)) { - queued_dns_request_t *r = g_queue_pop_head(queued_requests); - req->host = g_strdup(r->params.hostname); - req->port = r->params.port; - req->callback = r->callback; - req->data = r->data; - - gaim_debug_info("dns", - "Processing queued DNS query for '%s' with child %d\n", - req->host, req->dns_pid); - - if (send_dns_request_to_child(req, &(r->params)) != 0) { - req_free(req); - req = NULL; - - gaim_debug_warning("dns", - "Intent of process queued query of '%s' failed, " - "requeueing...\n", r->params.hostname); - g_queue_push_head(queued_requests, r); - } else { - req->inpa = gaim_input_add(req->fd_out, GAIM_INPUT_READ, host_resolved, req); - g_free(r); - } - - } else { - req->host = NULL; - req->callback = NULL; - req->data = NULL; - free_dns_children = g_slist_append(free_dns_children, req); - } -} - -static void -host_resolved(gpointer data, gint source, GaimInputCondition cond) -{ - pending_dns_request_t *req = (pending_dns_request_t*)data; - int rc, err; - GSList *hosts = NULL; - struct sockaddr *addr = NULL; - size_t addrlen; - - gaim_debug_info("dns", "Got response for '%s'\n", req->host); - gaim_input_remove(req->inpa); - - rc = read(req->fd_out, &err, sizeof(err)); - if ((rc == 4) && (err != 0)) - { - char message[1024]; -#ifdef HAVE_GETADDRINFO - g_snprintf(message, sizeof(message), "DNS error: %s (pid=%d)", - gai_strerror(err), req->dns_pid); -#else - g_snprintf(message, sizeof(message), "DNS error: %d (pid=%d)", - err, req->dns_pid); -#endif - gaim_debug_error("dns", "%s\n", message); - req->callback(NULL, req->data, message); - release_dns_child(req); - return; - } - if (rc > 0) - { - while (rc > 0) { - rc = read(req->fd_out, &addrlen, sizeof(addrlen)); - if (rc > 0 && addrlen > 0) { - addr = g_malloc(addrlen); - rc = read(req->fd_out, addr, addrlen); - hosts = g_slist_append(hosts, GINT_TO_POINTER(addrlen)); - hosts = g_slist_append(hosts, addr); - } else { - break; - } - } - } else if (rc == -1) { - char message[1024]; - g_snprintf(message, sizeof(message), "Error reading from DNS child: %s",strerror(errno)); - gaim_debug_error("dns", "%s\n", message); - req->callback(NULL, req->data, message); - req_free(req); - return; - } else if (rc == 0) { - char message[1024]; - g_snprintf(message, sizeof(message), "EOF reading from DNS child"); - close(req->fd_out); - gaim_debug_error("dns", "%s\n", message); - req->callback(NULL, req->data, message); - req_free(req); - return; - } - -/* wait4(req->dns_pid, NULL, WNOHANG, NULL); */ - - req->callback(hosts, req->data, NULL); - - release_dns_child(req); -} -/* - * End the functions for dealing with the DNS child processes. - */ - -int -gaim_gethostbyname_async(const char *hostname, int port, GaimProxyDnsConnectFunction callback, gpointer data) -{ - pending_dns_request_t *req = NULL; - dns_params_t dns_params; - gchar *host_temp; - gboolean show_debug; - - show_debug = gaim_debug_is_enabled(); - - host_temp = g_strstrip(g_strdup(hostname)); - strncpy(dns_params.hostname, host_temp, sizeof(dns_params.hostname) - 1); - g_free(host_temp); - dns_params.hostname[sizeof(dns_params.hostname) - 1] = '\0'; - dns_params.port = port; - - /* - * If we have any children, attempt to have them perform the DNS - * query. If we're able to send the query to a child, then req - * will be set to the pending_dns_request_t. Otherwise, req will - * be NULL and we'll need to create a new DNS request child. - */ - while (free_dns_children != NULL) { - req = free_dns_children->data; - free_dns_children = g_slist_remove(free_dns_children, req); - - if (send_dns_request_to_child(req, &dns_params) == 0) - /* We found an acceptable child, yay */ - break; - - req_free(req); - req = NULL; - } - - /* We need to create a new DNS request child */ - if (req == NULL) { - if (number_of_dns_children >= MAX_DNS_CHILDREN) { - queued_dns_request_t *r = g_new(queued_dns_request_t, 1); - memcpy(&(r->params), &dns_params, sizeof(dns_params)); - r->callback = callback; - r->data = data; - if (!queued_requests) - queued_requests = g_queue_new(); - g_queue_push_tail(queued_requests, r); - - gaim_debug_info("dns", - "DNS query for '%s' queued\n", dns_params.hostname); - - return 0; - } - - req = gaim_dns_new_resolverthread(show_debug); - if (req == NULL) - { - gaim_debug_error("proxy", "oh dear, this is going to explode, I give up\n"); - return -1; - } - send_dns_request_to_child(req, &dns_params); - } - - req->host = g_strdup(hostname); - req->port = port; - req->callback = callback; - req->data = data; - req->inpa = gaim_input_add(req->fd_out, GAIM_INPUT_READ, host_resolved, req); - - return 0; -} - -#elif defined _WIN32 /* end __unix__ || __APPLE__ */ - -typedef struct _dns_tdata { - char *hostname; - int port; - GaimProxyDnsConnectFunction callback; - gpointer data; - GSList *hosts; - char *errmsg; -} dns_tdata; - -static gboolean dns_main_thread_cb(gpointer data) { - dns_tdata *td = (dns_tdata*)data; - if (td->errmsg != NULL) { - gaim_debug_info("dns", "%s\n", td->errmsg); - } - td->callback(td->hosts, td->data, td->errmsg); - g_free(td->hostname); - g_free(td->errmsg); - g_free(td); - return FALSE; -} - -static gpointer dns_thread(gpointer data) { - -#ifdef HAVE_GETADDRINFO - int rc; - struct addrinfo hints, *res, *tmp; - char servname[20]; -#else - struct sockaddr_in sin; - struct hostent *hp; -#endif - dns_tdata *td = (dns_tdata*)data; - -#ifdef HAVE_GETADDRINFO - g_snprintf(servname, sizeof(servname), "%d", td->port); - memset(&hints,0,sizeof(hints)); - - /* This is only used to convert a service - * name to a port number. As we know we are - * passing a number already, we know this - * value will not be really used by the C - * library. - */ - hints.ai_socktype = SOCK_STREAM; - if ((rc = getaddrinfo(td->hostname, servname, &hints, &res)) == 0) { - tmp = res; - while(res) { - td->hosts = g_slist_append(td->hosts, - GSIZE_TO_POINTER(res->ai_addrlen)); - td->hosts = g_slist_append(td->hosts, - g_memdup(res->ai_addr, res->ai_addrlen)); - res = res->ai_next; - } - freeaddrinfo(tmp); - } else { - td->errmsg = g_strdup_printf("DNS getaddrinfo(\"%s\", \"%s\") error: %d", td->hostname, servname, rc); - } -#else - if ((hp = gethostbyname(td->hostname))) { - memset(&sin, 0, sizeof(struct sockaddr_in)); - memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); - sin.sin_family = hp->h_addrtype; - sin.sin_port = htons(td->port); - - td->hosts = g_slist_append(td->hosts, - GSIZE_TO_POINTER(sizeof(sin))); - td->hosts = g_slist_append(td->hosts, - g_memdup(&sin, sizeof(sin))); - } else { - td->errmsg = g_strdup_printf("DNS gethostbyname(\"%s\") error: %d", td->hostname, h_errno); - } -#endif - /* back to main thread */ - g_idle_add(dns_main_thread_cb, td); - return 0; -} - -int -gaim_gethostbyname_async(const char *hostname, int port, - GaimProxyDnsConnectFunction callback, gpointer data) -{ - dns_tdata *td; - struct sockaddr_in sin; - GError* err = NULL; - - if(inet_aton(hostname, &sin.sin_addr)) { - GSList *hosts = NULL; - sin.sin_family = AF_INET; - sin.sin_port = htons(port); - hosts = g_slist_append(hosts, GINT_TO_POINTER(sizeof(sin))); - hosts = g_slist_append(hosts, g_memdup(&sin, sizeof(sin))); - callback(hosts, data, NULL); - return 0; - } - - gaim_debug_info("dns", "DNS Lookup for: %s\n", hostname); - td = g_new0(dns_tdata, 1); - td->hostname = g_strdup(hostname); - td->port = port; - td->callback = callback; - td->data = data; - - if(!g_thread_create(dns_thread, td, FALSE, &err)) { - gaim_debug_error("dns", "DNS thread create failure: %s\n", err?err->message:""); - g_error_free(err); - g_free(td->hostname); - g_free(td); - return -1; - } - return 0; -} - -#else /* not __unix__ or __APPLE__ or _WIN32 */ - -typedef struct { - gpointer data; - size_t addrlen; - struct sockaddr *addr; - GaimProxyDnsConnectFunction callback; -} pending_dns_request_t; - -static gboolean host_resolved(gpointer data) -{ - pending_dns_request_t *req = (pending_dns_request_t*)data; - GSList *hosts = NULL; - hosts = g_slist_append(hosts, GINT_TO_POINTER(req->addrlen)); - hosts = g_slist_append(hosts, req->addr); - req->callback(hosts, req->data, NULL); - g_free(req); - return FALSE; -} - -int -gaim_gethostbyname_async(const char *hostname, int port, - GaimProxyDnsConnectFunction callback, gpointer data) -{ - struct sockaddr_in sin; - pending_dns_request_t *req; - - if (!inet_aton(hostname, &sin.sin_addr)) { - struct hostent *hp; - if(!(hp = gethostbyname(hostname))) { - gaim_debug_error("dns", - "gaim_gethostbyname(\"%s\", %d) failed: %d\n", - hostname, port, h_errno); - return -1; - } - memset(&sin, 0, sizeof(struct sockaddr_in)); - memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); - sin.sin_family = hp->h_addrtype; - } else - sin.sin_family = AF_INET; - sin.sin_port = htons(port); - - req = g_new(pending_dns_request_t, 1); - req->addr = (struct sockaddr*) g_memdup(&sin, sizeof(sin)); - req->addrlen = sizeof(sin); - req->data = data; - req->callback = callback; - gaim_timeout_add(10, host_resolved, req); - return 0; -} - -#endif /* not __unix__ or __APPLE__ or _WIN32 */ - -static void no_one_calls(gpointer data, gint source, GaimInputCondition cond) { GaimProxyConnectInfo *connect_info = data; @@ -2368,8 +1701,9 @@ return NULL; } - if (gaim_gethostbyname_async(connecthost, - connectport, connection_host_resolved, connect_info) != 0) + connect_info->query_data = gaim_dnsquery_a(connecthost, + connectport, connection_host_resolved, connect_info); + if (connect_info->query_data == NULL) { gaim_proxy_connect_info_destroy(connect_info); return NULL; @@ -2401,8 +1735,9 @@ connect_info->port = port; connect_info->gpi = gpi; - if (gaim_gethostbyname_async(gaim_proxy_info_get_host(gpi), - gaim_proxy_info_get_port(gpi), connection_host_resolved, connect_info) != 0) + connect_info->query_data = gaim_dnsquery_a(gaim_proxy_info_get_host(gpi), + gaim_proxy_info_get_port(gpi), connection_host_resolved, connect_info); + if (connect_info->query_data == NULL) { gaim_proxy_connect_info_destroy(connect_info); return NULL; Modified: trunk/src/proxy.h =================================================================== --- trunk/src/proxy.h 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/proxy.h 2006-08-17 07:44:52 UTC (rev 16811) @@ -26,6 +26,7 @@ #define _GAIM_PROXY_H_ #include <glib.h> +#include "dnsquery.h" #include "eventloop.h" /** @@ -56,6 +57,7 @@ } GaimProxyInfo; +typedef struct _GaimDnsQueryData GaimDnsQueryData; typedef struct _GaimProxyConnectInfo GaimProxyConnectInfo; typedef void (*GaimProxyConnectFunction)(gpointer data, gint source, const gchar *error_message); @@ -278,18 +280,6 @@ */ void gaim_proxy_connect_cancel(GaimProxyConnectInfo *connect_info); -/** - * Do an async dns query - * - * @param hostname The hostname to resolve - * @param port A portnumber which is stored in the struct sockaddr - * @param callback Callback to call after resolving - * @param data Extra data for the callback function - * - * @return Zero indicates the connection is pending. Any other value indicates failure. - */ -int gaim_gethostbyname_async(const char *hostname, int port, GaimProxyDnsConnectFunction callback, gpointer data); - /*@}*/ #ifdef __cplusplus Modified: trunk/src/stun.c =================================================================== --- trunk/src/stun.c 2006-08-17 06:21:28 UTC (rev 16810) +++ trunk/src/stun.c 2006-08-17 07:44:52 UTC (rev 16811) @@ -40,6 +40,7 @@ #include "debug.h" #include "account.h" +#include "dnsquery.h" #include "dnssrv.h" #include "network.h" #include "proxy.h" @@ -359,7 +360,7 @@ gaim_debug_info("stun", "got %d SRV responses, server: %s, port: %d\n", results, servername, port); - gaim_gethostbyname_async(servername, port, hbn_cb, NULL); + gaim_dnsquery_a(servername, port, hbn_cb, NULL); g_free(resp); } This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site. |