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-rw-r--r--src/sig_handler.c152
1 files changed, 0 insertions, 152 deletions
diff --git a/src/sig_handler.c b/src/sig_handler.c
deleted file mode 100644
index 79e2a2d..0000000
--- a/src/sig_handler.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * rharchive
- *
- * rharchive is a simple tcp connection proxy which combines the
- * features of rinetd and 6tunnel. rharchive supports IPv4 and
- * IPv6 and also supports connections from IPv6 to IPv4
- * endpoints and vice versa.
- *
- *
- * Copyright (C) 2010-2011 Christian Pointner <equinox@helsinki.at>
- *
- * This file is part of rharchive.
- *
- * rharchive 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 3 of the License, or
- * any later version.
- *
- * rharchive 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 rharchive. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "datatypes.h"
-
-#include "log.h"
-
-#include "sig_handler.h"
-#include <errno.h>
-
-#include <signal.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-static int sig_pipe_fds[2];
-
-static void sig_handler(int sig)
-{
- sigset_t set;
- int ret = read(sig_pipe_fds[0], &set, sizeof(sigset_t));
- if(ret != sizeof(sigset_t))
- sigemptyset(&set);
-
- sigaddset(&set, sig);
- ret = write(sig_pipe_fds[1], &set, sizeof(sigset_t));
-}
-
-
-int signal_init()
-{
- if(pipe(sig_pipe_fds)) {
- log_printf(ERROR, "signal handling init failed (pipe error: %s)", strerror(errno));
- return -1;
- }
-
- int i;
- for(i=0; i<2; ++i) {
- int fd_flags = fcntl(sig_pipe_fds[i], F_GETFL);
- if(fd_flags == -1) {
- log_printf(ERROR, "signal handling init failed (pipe fd[%d] read flags error: %s)", i, strerror(errno));
- return -1;
- }
- if(fcntl(sig_pipe_fds[i], F_SETFL, fd_flags | O_NONBLOCK) == -1){
- log_printf(ERROR, "signal handling init failed (pipe fd[%d] write flags error: %s)", i, strerror(errno));
- return -1;
- }
- }
-
- struct sigaction act, act_ign;
- act.sa_handler = sig_handler;
- sigfillset(&act.sa_mask);
- act.sa_flags = 0;
- act_ign.sa_handler = SIG_IGN;
- sigfillset(&act_ign.sa_mask);
- act_ign.sa_flags = 0;
-
- if((sigaction(SIGINT, &act, NULL) < 0) ||
- (sigaction(SIGQUIT, &act, NULL) < 0) ||
- (sigaction(SIGTERM, &act, NULL) < 0) ||
- (sigaction(SIGHUP, &act, NULL) < 0) ||
- (sigaction(SIGUSR1, &act, NULL) < 0) ||
- (sigaction(SIGUSR2, &act, NULL) < 0) ||
- (sigaction(SIGPIPE, &act_ign, NULL) < 0)) {
-
- log_printf(ERROR, "signal handling init failed (sigaction error: %s)", strerror(errno));
- close(sig_pipe_fds[0]);
- close(sig_pipe_fds[1]);
- }
-
- return sig_pipe_fds[0];
-}
-
-int signal_handle()
-{
- sigset_t set, oldset, tmpset;
-
- sigemptyset(&tmpset);
- sigaddset(&tmpset, SIGINT);
- sigaddset(&tmpset, SIGQUIT);
- sigaddset(&tmpset, SIGTERM);
- sigaddset(&tmpset, SIGHUP);
- sigaddset(&tmpset, SIGUSR1);
- sigaddset(&tmpset, SIGUSR2);
- sigprocmask(SIG_BLOCK, &tmpset, &oldset);
-
- int ret = read(sig_pipe_fds[0], &set, sizeof(sigset_t));
- if(ret != sizeof(sigset_t))
- sigemptyset(&set);
-
- int return_value = 0;
- int sig;
- for(sig=1; sig < NSIG; ++sig) {
- if(sigismember(&set, sig)) {
- switch(sig) {
- case SIGINT: log_printf(NOTICE, "SIG-Int caught, exitting"); return_value = 1; break;
- case SIGQUIT: log_printf(NOTICE, "SIG-Quit caught, exitting"); return_value = 1; break;
- case SIGTERM: log_printf(NOTICE, "SIG-Term caught, exitting"); return_value = 1; break;
- case SIGHUP: log_printf(NOTICE, "SIG-Hup caught"); return_value = 2; break;
- case SIGUSR1: log_printf(NOTICE, "SIG-Usr1 caught"); return_value = 3; break;
- case SIGUSR2: log_printf(NOTICE, "SIG-Usr2 caught"); return_value = 4; break;
- default: log_printf(WARNING, "unknown signal %d caught, ignoring", sig); break;
- }
- sigdelset(&set, sig);
- }
- }
-
- sigprocmask(SIG_SETMASK, &oldset, NULL);
- return return_value;
-}
-
-void signal_stop()
-{
- struct sigaction act;
- act.sa_handler = SIG_DFL;
- sigemptyset(&act.sa_mask);
- act.sa_flags = 0;
-
- sigaction(SIGINT, &act, NULL);
- sigaction(SIGQUIT, &act, NULL);
- sigaction(SIGTERM, &act, NULL);
- sigaction(SIGHUP, &act, NULL);
- sigaction(SIGUSR1, &act, NULL);
- sigaction(SIGUSR2, &act, NULL);
- sigaction(SIGPIPE, &act, NULL);
-
- close(sig_pipe_fds[0]);
- close(sig_pipe_fds[1]);
-}