diff options
Diffstat (limited to 'plugins/sa-junk-plugin/em-junk-filter.c')
-rw-r--r-- | plugins/sa-junk-plugin/em-junk-filter.c | 760 |
1 files changed, 760 insertions, 0 deletions
diff --git a/plugins/sa-junk-plugin/em-junk-filter.c b/plugins/sa-junk-plugin/em-junk-filter.c new file mode 100644 index 0000000000..af61f9ed94 --- /dev/null +++ b/plugins/sa-junk-plugin/em-junk-filter.c @@ -0,0 +1,760 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Author: + * Radek Doulik <rodo@ximian.com> + * + * Copyright 2003 Ximian, Inc. (www.ximian.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of version 2 of the GNU General Public + * License as published by the Free Software Foundation. + * + * 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 + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <fcntl.h> +#include <errno.h> +#include <signal.h> +#include <string.h> +#include <pthread.h> +#include <signal.h> +#include <time.h> + +#include <camel/camel-debug.h> +#include <camel/camel-file-utils.h> +#include <camel/camel-data-wrapper.h> +#include <camel/camel-stream-fs.h> +#include <camel/camel-stream-mem.h> +#include <camel/camel-i18n.h> +#include <mail/em-junk-hook.h> +#include <mail/em-utils.h> +#include <e-util/e-mktemp.h> + +#include <gconf/gconf-client.h> + +#define d(x) (camel_debug("junk")?(x):0) + +static pthread_mutex_t em_junk_sa_init_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t em_junk_sa_report_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t em_junk_sa_preferred_socket_path_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t em_junk_sa_spamd_restart_lock = PTHREAD_MUTEX_INITIALIZER; + +static const char *em_junk_sa_get_name (void); +gboolean em_junk_sa_check_junk (EPlugin *ep, EMJunkHookTarget *target); +void em_junk_sa_report_junk (EPlugin *ep, EMJunkHookTarget *target); +void em_junk_sa_report_notjunk (EPlugin *ep, EMJunkHookTarget *target); +void em_junk_sa_commit_reports (EPlugin *ep, EMJunkHookTarget *target); +static void em_junk_sa_init (void); +static void em_junk_sa_finalize (void); +static void em_junk_sa_kill_spamd (void); + + +static gboolean em_junk_sa_tested = FALSE; +static gboolean em_junk_sa_spamd_tested = FALSE; +static gboolean em_junk_sa_use_spamc = FALSE; +static gboolean em_junk_sa_available = FALSE; +static gboolean em_junk_sa_system_spamd_available = FALSE; +static gboolean em_junk_sa_new_daemon_started = FALSE; +static char *em_junk_sa_socket_path = NULL; +static char *em_junk_sa_spamd_pidfile = NULL; +static char *em_junk_sa_spamc_binary = NULL; +static GConfClient *em_junk_sa_gconf = NULL; + +/* volatile so not cached between threads */ +static volatile gboolean em_junk_sa_local_only; +static volatile gboolean em_junk_sa_use_daemon; +static char * em_junk_sa_preferred_socket_path; + +static char *em_junk_sa_spamc_binaries [3] = {"spamc", "/usr/sbin/spamc", NULL}; +static char *em_junk_sa_spamd_binaries [3] = {"spamd", "/usr/sbin/spamd", NULL}; + +#define SPAMD_RESTARTS_SIZE 8 +static time_t em_junk_sa_spamd_restarts [SPAMD_RESTARTS_SIZE] = {0, 0, 0, 0, 0, 0, 0, 0}; +static int em_junk_sa_spamd_restarts_count = 0; + +char *em_junk_sa_spamc_gconf_binary = NULL; +char *em_junk_sa_spamd_gconf_binary = NULL; + +static const char * +em_junk_sa_get_name (void) +{ + return _("Spamassassin (built-in)"); +} + +static int +pipe_to_sa_full (CamelMimeMessage *msg, const char *in, char **argv, int rv_err, int wait_for_termination, GByteArray *output_buffer) +{ + int result, status, errnosav, fds[2], out_fds[2]; + CamelStream *stream; + char *program; + pid_t pid; + + + if (camel_debug_start ("junk")) { + int i; + + printf ("pipe_to_sa "); + for (i = 0; argv[i]; i++) + printf ("%s ", argv[i]); + printf ("\n"); + camel_debug_end (); + } + + program = g_find_program_in_path (argv [0]); + if (program == NULL) { + d(printf ("program not found, returning %d\n", rv_err)); + return rv_err; + } + g_free (program); + + if (pipe (fds) == -1) { + errnosav = errno; + d(printf ("failed to create a pipe (for use with spamassassin: %s\n", strerror (errno))); + errno = errnosav; + return rv_err; + } + + if (output_buffer && pipe (out_fds) == -1) { + errnosav = errno; + d(printf ("failed to create a pipe (for use with spamassassin: %s\n", strerror (errno))); + errno = errnosav; + return rv_err; + } + + if (!(pid = fork ())) { + /* child process */ + int maxfd, fd, nullfd; + + nullfd = open ("/dev/null", O_WRONLY); + + if (dup2 (fds[0], STDIN_FILENO) == -1 || + dup2 (nullfd, STDERR_FILENO) == -1 || + (output_buffer == NULL && dup2 (nullfd, STDOUT_FILENO) == -1) || + (output_buffer != NULL && dup2 (out_fds[1], STDOUT_FILENO) == -1)) + _exit (rv_err & 0377); + close (fds [0]); + if (output_buffer) + close (out_fds [1]); + + setsid (); + + maxfd = sysconf (_SC_OPEN_MAX); + for (fd = 3; fd < maxfd; fd++) + fcntl (fd, F_SETFD, FD_CLOEXEC); + + execvp (argv[0], argv); + _exit (rv_err & 0377); + } else if (pid < 0) { + errnosav = errno; + close (fds[0]); + close (fds[1]); + errno = errnosav; + return rv_err; + } + + /* parent process */ + close (fds[0]); + if (output_buffer) + close (out_fds [1]); + + if (msg) { + stream = camel_stream_fs_new_with_fd (fds[1]); + + camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (msg), stream); + camel_stream_flush (stream); + camel_stream_close (stream); + camel_object_unref (stream); + } else if (in) { + camel_write (fds[1], in, strlen (in)); + close (fds[1]); + } + + if (output_buffer) { + CamelStreamMem *memstream; + + stream = camel_stream_fs_new_with_fd (out_fds[0]); + + memstream = (CamelStreamMem *) camel_stream_mem_new (); + camel_stream_mem_set_byte_array (memstream, output_buffer); + + camel_stream_write_to_stream (stream, (CamelStream *) memstream); + camel_object_unref (stream); + g_byte_array_append (output_buffer, "", 1); + + d(printf ("child process output: %s len: %d\n", output_buffer->data, output_buffer->len)); + } + + if (wait_for_termination) { + d(printf ("wait for child %d termination\n", pid)); + result = waitpid (pid, &status, 0); + + d(printf ("child %d terminated with result %d status %d exited %d exitstatus %d\n", pid, result, status, WIFEXITED (status), WEXITSTATUS (status))); + + if (result == -1 && errno == EINTR) { + /* child process is hanging... */ + kill (pid, SIGTERM); + sleep (1); + result = waitpid (pid, &status, WNOHANG); + if (result == 0) { + /* ...still hanging, set phasers to KILL */ + kill (pid, SIGKILL); + sleep (1); + result = waitpid (pid, &status, WNOHANG); + } + } + + if (result != -1 && WIFEXITED (status)) + return WEXITSTATUS (status); + else + return rv_err; + } else + return 0; +} + +static int +pipe_to_sa (CamelMimeMessage *msg, const char *in, char **argv) +{ + return pipe_to_sa_full (msg, in, argv, -1, 1, NULL); +} + +static char * +em_junk_sa_get_socket_path () +{ + if (em_junk_sa_preferred_socket_path) + return em_junk_sa_preferred_socket_path; + else + return em_junk_sa_socket_path; +} + +static gboolean +em_junk_sa_test_spamd_running (char *binary, gboolean system) +{ + char *argv[5]; + int i = 0; + gboolean rv; + + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + + d(fprintf (stderr, "test if spamd is running (system %d) or using socket path %s\n", system, em_junk_sa_get_socket_path ())); + + argv[i++] = binary; + argv[i++] = "-x"; + + if (!system) { + argv[i++] = "-U"; + argv[i++] = em_junk_sa_get_socket_path (); + } + + argv[i] = NULL; + + rv = pipe_to_sa (NULL, "From test@127.0.0.1", argv) == 0; + + d(fprintf (stderr, "result: %d (%s)\n", rv, rv ? "success" : "failed")); + + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + + return rv; +} + +static void +em_junk_sa_test_spamassassin (void) +{ + char *argv [3] = { + "spamassassin", + "--version", + NULL, + }; + + if (pipe_to_sa (NULL, NULL, argv) != 0) + em_junk_sa_available = FALSE; + else + em_junk_sa_available = TRUE; + + em_junk_sa_tested = TRUE; +} + +#define MAX_SPAMD_PORTS 1 + +static gboolean +em_junk_sa_run_spamd (char *binary) +{ + char *argv[8]; + int i; + gboolean rv = FALSE; + + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + + d(fprintf (stderr, "looks like spamd is not running\n")); + + i = 0; + argv[i++] = binary; + argv[i++] = "--socketpath"; + argv[i++] = em_junk_sa_get_socket_path (); + + if (em_junk_sa_local_only) + argv[i++] = "--local"; + + //argv[i++] = "--daemonize"; + argv[i++] = "--pidfile"; + argv[i++] = em_junk_sa_spamd_pidfile; + argv[i] = NULL; + + d(fprintf (stderr, "trying to run %s with socket path %s\n", binary, em_junk_sa_get_socket_path ())); + + if (!pipe_to_sa_full (NULL, NULL, argv, -1, 0, NULL)) { + int i; + struct timespec time_req; + struct stat stat_buf; + + d(fprintf (stderr, "success\n")); + d(fprintf (stderr, "waiting for spamd to come up\n")); + + time_req.tv_sec = 0; + time_req.tv_nsec = 50000000; + + for (i = 0; i < 100; i ++) { + if (stat (em_junk_sa_get_socket_path (), &stat_buf) == 0) { + d(fprintf (stderr, "socket created\n")); + break; + } + nanosleep (&time_req, NULL); + } + d(fprintf (stderr, "waiting is over (after %dms)\n", 50*i)); + + rv = TRUE; + } + + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + + return rv; +} + +static void +em_junk_sa_start_own_daemon () +{ + int b; + + em_junk_sa_new_daemon_started = FALSE; + + em_junk_sa_socket_path = e_mktemp ("spamd-socket-path-XXXXXX"); + em_junk_sa_spamd_pidfile = e_mktemp ("spamd-pid-file-XXXXXX"); + + for (b = 0; em_junk_sa_spamd_binaries [b]; b ++) { + em_junk_sa_use_spamc = em_junk_sa_run_spamd (em_junk_sa_spamd_binaries [b]); + if (em_junk_sa_use_spamc) { + em_junk_sa_new_daemon_started = TRUE; + break; + } + } +} + +static void +em_junk_sa_find_spamc () +{ + if (em_junk_sa_use_spamc && em_junk_sa_new_daemon_started) { + int b; + + em_junk_sa_use_spamc = FALSE; + for (b = 0; em_junk_sa_spamc_binaries [b]; b ++) { + em_junk_sa_spamc_binary = em_junk_sa_spamc_binaries [b]; + if (em_junk_sa_test_spamd_running (em_junk_sa_spamc_binary, FALSE)) { + em_junk_sa_use_spamc = TRUE; + break; + } + } + } +} + +static void +em_junk_sa_test_spamd (void) +{ + char *argv[4]; + int i, b; + gboolean try_system_spamd = TRUE; + + if (em_junk_sa_spamc_gconf_binary) { + em_junk_sa_spamc_binaries [0] = em_junk_sa_spamc_gconf_binary; + em_junk_sa_spamc_binaries [1] = NULL; + } + + if (em_junk_sa_spamd_gconf_binary) { + em_junk_sa_spamd_binaries [0] = em_junk_sa_spamd_gconf_binary; + em_junk_sa_spamd_binaries [1] = NULL; + try_system_spamd = FALSE; + } + + em_junk_sa_use_spamc = FALSE; + + if (em_junk_sa_local_only && try_system_spamd) { + i = 0; + argv [i++] = "/bin/sh"; + argv [i++] = "-c"; + argv [i++] = "ps ax|grep -v grep|grep -E 'spamd.*(\\-L|\\-\\-local)'|grep -E -v '\\ \\-p\\ |\\ \\-\\-port\\ '"; + argv[i] = NULL; + + if (pipe_to_sa (NULL, NULL, argv) != 0) { + try_system_spamd = FALSE; + d(fprintf (stderr, "there's no system spamd with -L/--local parameter running\n")); + } + } + + /* try to use sytem spamd first */ + if (try_system_spamd) { + for (b = 0; em_junk_sa_spamc_binaries [b]; b ++) { + em_junk_sa_spamc_binary = em_junk_sa_spamc_binaries [b]; + if (em_junk_sa_test_spamd_running (em_junk_sa_spamc_binary, TRUE)) { + em_junk_sa_use_spamc = TRUE; + em_junk_sa_system_spamd_available = TRUE; + break; + } + } + } + + /* if there's no system spamd running, try to use user one with user specified socket */ + if (!em_junk_sa_use_spamc && em_junk_sa_preferred_socket_path) { + for (b = 0; em_junk_sa_spamc_binaries [b]; b ++) { + em_junk_sa_spamc_binary = em_junk_sa_spamc_binaries [b]; + if (em_junk_sa_test_spamd_running (em_junk_sa_spamc_binary, FALSE)) { + em_junk_sa_use_spamc = TRUE; + em_junk_sa_system_spamd_available = FALSE; + break; + } + } + } + + /* unsuccessful? try to run one ourselfs */ + if (!em_junk_sa_use_spamc) + em_junk_sa_start_own_daemon (); + + /* new daemon started => let find spamc binary */ + em_junk_sa_find_spamc (); + + d(fprintf (stderr, "use spamd: %s\n", em_junk_sa_use_spamc ? "yes" : "no")); + + em_junk_sa_spamd_tested = TRUE; +} + +static gboolean +em_junk_sa_is_available (void) +{ + pthread_mutex_lock (&em_junk_sa_init_lock); + + if (!em_junk_sa_tested) + em_junk_sa_test_spamassassin (); + + if (em_junk_sa_available && !em_junk_sa_spamd_tested && em_junk_sa_use_daemon) + em_junk_sa_test_spamd (); + + pthread_mutex_unlock (&em_junk_sa_init_lock); + + return em_junk_sa_available; +} + +static gboolean +em_junk_sa_check_respawn_too_fast () +{ + time_t time_now = time (NULL); + gboolean rv; + + pthread_mutex_lock (&em_junk_sa_spamd_restart_lock); + + if (em_junk_sa_spamd_restarts_count >= SPAMD_RESTARTS_SIZE) { + /* all restarts in last 5 minutes */ + rv = (time_now - em_junk_sa_spamd_restarts [em_junk_sa_spamd_restarts_count % SPAMD_RESTARTS_SIZE] < 5*60); + } else + rv = FALSE; + + em_junk_sa_spamd_restarts [em_junk_sa_spamd_restarts_count % SPAMD_RESTARTS_SIZE] = time_now; + em_junk_sa_spamd_restarts_count ++; + + pthread_mutex_unlock (&em_junk_sa_spamd_restart_lock); + + d(printf ("em_junk_sa_check_respawn_too_fast: %d\n", rv)); + + return rv; +} + +static gboolean +em_junk_sa_respawn_spamd () +{ + d(printf ("em_junk_sa_respawn_spamd\n")); + if (em_junk_sa_test_spamd_running (em_junk_sa_spamc_binary, em_junk_sa_system_spamd_available)) { + /* false alert */ + d(printf ("false alert, spamd still running\n")); + + return FALSE; + } + + d(printf ("going to kill old spamd and start new one\n")); + em_junk_sa_kill_spamd (); + + if (em_junk_sa_check_respawn_too_fast ()) { + g_warning ("respawning of spamd too fast => fallback to use spamassassin directly"); + + em_junk_sa_use_spamc = em_junk_sa_use_daemon = FALSE; + return FALSE; + } + + em_junk_sa_start_own_daemon (); + em_junk_sa_find_spamc (); + + d(printf ("%s\n", em_junk_sa_use_spamc ? "success" : "failed")); + + return em_junk_sa_use_spamc; +} + +gboolean +em_junk_sa_check_junk(EPlugin *ep, EMJunkHookTarget *target) +{ + GByteArray *out = NULL; + char *argv[7], *to_free = NULL; + int i = 0, socket_i; + gboolean rv; + CamelMimeMessage *msg = target->m; + + d(fprintf (stderr, "em_junk_sa_check_junk\n")); + g_print ("checking for junk..?\n"); + + if (!em_junk_sa_is_available ()) + return FALSE; + + if (em_junk_sa_use_spamc && em_junk_sa_use_daemon) { + out = g_byte_array_new (); + argv[i++] = em_junk_sa_spamc_binary; + argv[i++] = "-c"; + argv[i++] = "-t"; + argv[i++] = "60"; + if (!em_junk_sa_system_spamd_available) { + argv[i++] = "-U"; + + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + socket_i = i; + argv[i++] = to_free = g_strdup (em_junk_sa_get_socket_path ()); + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + } + } else { + argv [i++] = "spamassassin"; + argv [i++] = "--exit-code"; + if (em_junk_sa_local_only) + argv [i++] = "--local"; + } + + argv[i] = NULL; + + rv = pipe_to_sa_full (msg, NULL, argv, 0, 1, out) != 0; + + if (!rv && out && !strcmp (out->data, "0/0\n")) { + /* an error occured */ + if (em_junk_sa_respawn_spamd ()) { + g_byte_array_set_size (out, 0); + + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + g_free (to_free); + argv [socket_i] = to_free = g_strdup (em_junk_sa_get_socket_path ()); + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + + rv = pipe_to_sa_full (msg, NULL, argv, 0, 1, out) != 0; + } else if (!em_junk_sa_use_spamc) + /* in case respawning were too fast we fallback to spamassassin */ + rv = em_junk_sa_check_junk (ep, target); + } + + g_free (to_free); + + d(fprintf (stderr, "em_junk_sa_check_junk rv = %d\n", rv)); + + if (out) + g_byte_array_free (out, TRUE); + + return rv; +} + +void +em_junk_sa_report_junk (EPlugin *ep, EMJunkHookTarget *target) +{ + char *argv[6] = { + "sa-learn", + "--no-rebuild", + "--spam", + "--single", + NULL, + NULL + }; + gchar *sub = NULL; + CamelMimeMessage *msg = target->m; + + sub = g_strdup (camel_mime_message_get_subject (msg)); + g_print ("\nreport junk?? %s\n", sub); + + d(fprintf (stderr, "em_junk_sa_report_junk\n")); + + if (em_junk_sa_is_available ()) { + if (em_junk_sa_local_only) + argv[4] = "--local"; + + pthread_mutex_lock (&em_junk_sa_report_lock); + pipe_to_sa (msg, NULL, argv); + pthread_mutex_unlock (&em_junk_sa_report_lock); + } +} + +void +em_junk_sa_report_non_junk (EPlugin *ep, EMJunkHookTarget *target) +{ + char *argv[6] = { + "sa-learn", + "--no-rebuild", + "--ham", + "--single", + NULL, + NULL + }; + CamelMimeMessage *msg = target->m; + + d(fprintf (stderr, "em_junk_sa_report_notjunk\n")); + + if (em_junk_sa_is_available ()) { + if (em_junk_sa_local_only) + argv[4] = "--local"; + + pthread_mutex_lock (&em_junk_sa_report_lock); + pipe_to_sa (msg, NULL, argv); + pthread_mutex_unlock (&em_junk_sa_report_lock); + } +} + +void +em_junk_sa_commit_reports (EPlugin *ep, EMJunkHookTarget *target) +{ + char *argv[4] = { + "sa-learn", + "--rebuild", + NULL, + NULL + }; + + d(fprintf (stderr, "em_junk_sa_commit_reports\n")); + + if (em_junk_sa_is_available ()) { + if (em_junk_sa_local_only) + argv[2] = "--local"; + + pthread_mutex_lock (&em_junk_sa_report_lock); + pipe_to_sa (NULL, NULL, argv); + pthread_mutex_unlock (&em_junk_sa_report_lock); + } +} + +static void +em_junk_sa_setting_notify(GConfClient *gconf, guint cnxn_id, GConfEntry *entry, void *data) +{ + GConfValue *value; + char *tkey; + + g_return_if_fail (gconf_entry_get_key (entry) != NULL); + + if (!(value = gconf_entry_get_value (entry))) + return; + + tkey = strrchr(entry->key, '/'); + g_return_if_fail (tkey != NULL); + + if (!strcmp(tkey, "local_only")) + em_junk_sa_local_only = gconf_value_get_bool(value); + else if (!strcmp(tkey, "use_daemon")) + em_junk_sa_use_daemon = gconf_value_get_bool(value); + else if (!strcmp(tkey, "socket_path")) { + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + g_free (em_junk_sa_preferred_socket_path); + em_junk_sa_preferred_socket_path = g_strdup (gconf_value_get_string(value)); + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + } +} + +static void +em_junk_sa_init (void) +{ + pthread_mutex_lock (&em_junk_sa_init_lock); + + if (!em_junk_sa_gconf) { + em_junk_sa_gconf = gconf_client_get_default(); + gconf_client_add_dir (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa", GCONF_CLIENT_PRELOAD_ONELEVEL, NULL); + + em_junk_sa_local_only = gconf_client_get_bool (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa/local_only", NULL); + em_junk_sa_use_daemon = gconf_client_get_bool (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa/use_daemon", NULL); + + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + g_free (em_junk_sa_preferred_socket_path); + em_junk_sa_preferred_socket_path = g_strdup (gconf_client_get_string (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa/socket_path", NULL)); + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + + gconf_client_notify_add(em_junk_sa_gconf, "/apps/evolution/mail/junk/sa", + (GConfClientNotifyFunc)em_junk_sa_setting_notify, + NULL, NULL, NULL); + + em_junk_sa_spamc_gconf_binary = gconf_client_get_string (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa/spamc_binary", NULL); + em_junk_sa_spamd_gconf_binary = gconf_client_get_string (em_junk_sa_gconf, "/apps/evolution/mail/junk/sa/spamd_binary", NULL); + } + + pthread_mutex_unlock (&em_junk_sa_init_lock); + + atexit (em_junk_sa_finalize); +} + +static void +em_junk_sa_kill_spamd (void) +{ + pthread_mutex_lock (&em_junk_sa_preferred_socket_path_lock); + g_free (em_junk_sa_preferred_socket_path); + em_junk_sa_preferred_socket_path = NULL; + pthread_mutex_unlock (&em_junk_sa_preferred_socket_path_lock); + + if (em_junk_sa_new_daemon_started) { + int fd = open (em_junk_sa_spamd_pidfile, O_RDONLY); + + if (fd != -1) { + char pid_str [16]; + int bytes; + + bytes = read (fd, pid_str, 15); + if (bytes > 0) { + int pid; + + pid_str [bytes] = 0; + pid = atoi (pid_str); + + if (pid > 0) { + kill (pid, SIGTERM); + d(fprintf (stderr, "em_junk_sa_finalize send SIGTERM to daemon with pid %d\n", pid)); + waitpid (pid, NULL, 0); + } + } + + close (fd); + } + } +} + +static void +em_junk_sa_finalize (void) +{ + d(fprintf (stderr, "em_junk_sa_finalize\n")); + + em_junk_sa_kill_spamd (); +} |