Add syslog support, actual pin signals and mock support
This commit is contained in:
parent
ae24bac0bc
commit
f2b96ece0d
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@ -1,15 +1,23 @@
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set(CMAKE_MINIMUM_VERSION_REQUIRED 3.0)
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cmake_minimum_required(VERSION 3.0)
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project(kerstezel-klant)
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if (MSVC)
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add_compile_options(/W4 /WX)
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add_compile_options(/W4 /WX)
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else()
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add_compile_options(-Wall -Wextra -pedantic -Werror)
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add_compile_options(-Wall -Wextra -pedantic -Werror)
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endif()
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add_compile_definitions(LOG_PREFIX="${CMAKE_SOURCE_DIR}")
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if(SPOOF)
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add_compile_definitions(SPOOF)
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endif()
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set(KERSTEZEL_SOURCES src/kerstezel.c)
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set(KERSTEZEL_HEADERS src/kerstezel.h)
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add_executable(kerstezel ${KERSTEZEL_SOURCES} ${KERSTEZEL_HEADERS})
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if(NOT SPOOF)
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target_link_libraries(kerstezel -lbcm2835)
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endif()
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install(TARGETS kerstezel DESTINATION sbin)
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42
init
Normal file
42
init
Normal file
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@ -0,0 +1,42 @@
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: kerstezel
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# Required-Start: $network
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# Required-Stop:
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# Default-Start: S
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# Default-Stop:
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# Short-Description: Set hostname based on /etc/hostname
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### END INIT INFO
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. /etc/init.d/functions
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address=santaofiapc.rocks
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port=9305
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dapid=0
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case $1 in
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start)
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( while true; do /sbin/kerstezel $address $port; sleep 10; done; ) &
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dapid=$!
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;;
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stop)
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if [ $dapid -ne 0 ]; then
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kill $dapid
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dapid=0
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else
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echo "Not running"
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exit 1
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done
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;;
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restart)
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$0 stop
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sleep 1
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$0 start
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;;
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*)
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echo "usage: $0 start|stop|restart"
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exit 1
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;;
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esac
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exit 0
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@ -11,11 +11,14 @@
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#include <sys/prctl.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <syslog.h>
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#include <unistd.h>
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#include <linux/seccomp.h>
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#ifndef SPOOF
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#include <bcm2835.h>
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#endif //SPOOF
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#define LOGF(x, ...) do { logf_impl(x, __FILE__, __LINE__, __func__, __VA_ARGS__); } while(0);
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#define LOG(x) do { log_impl(x, __FILE__, __LINE__, __func__); } while(0);
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@ -25,6 +28,8 @@
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#define TROMMEL_PIN 17
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const char *SOCKET_ERROR = "Socket-fout";
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const char *LOG_FMT = "[%s:%d %s]: %s";
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int log_prefix_length = 0;
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typedef struct mbuf {
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/// Internal buffer
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@ -38,34 +43,25 @@ typedef struct mbuf {
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} mbuf_t;
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const char *pid_path = "/run/kerstezel.pid";
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const char *log_path = "/var/log/kerstman.log";
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FILE *log_file = NULL;
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void log_impl(const char *message, const char *file, int line, const char *func) {
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fprintf(log_file, "%s:%d:%s: %s\n", file, line, func, message);
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fflush(log_file);
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syslog(LOG_INFO, LOG_FMT, file + log_prefix_length, line, func, message);
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}
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void logf_impl(const char *message, const char *file, int line, const char *func, ...) {
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va_list args;
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va_start(args, func);
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fprintf(log_file, "%s:%d %s: ", file, line, func);
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vfprintf(log_file, message, args);
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fprintf(log_file, "\n");
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int c = snprintf(NULL, 0, LOG_FMT, file + log_prefix_length, line, func, message);
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char *msg = malloc(c + 1);
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snprintf(msg, c + 1, LOG_FMT, file + log_prefix_length, line, func, message);
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vsyslog(LOG_INFO, msg, args);
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va_end(args);
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fflush(log_file);
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}
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int quit_if_fail(int err, const char *failMessage) {
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if (err < 0) {
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int no = errno;
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size_t stringSize = strlen(failMessage) + strlen(strerror(no)) + 2;
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char *msg = (char *) malloc(stringSize);
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strcpy(msg, failMessage);
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strcat(msg, ": ");
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strcat(msg, strerror(no));
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LOG(msg);
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free(msg);
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LOGF( "%s: %s", failMessage, strerror(no));
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exit(EXIT_FAILURE);
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}
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return err;
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@ -97,7 +93,7 @@ int mbuf_read_until(mbuf_t *buf, char c, char *out, size_t max_size) {
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if (buf->rpos == buf->wpos) {
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size_t wpos = buf->wpos % MBUF_SIZE;
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if ((n = read(buf->sock, buf->buffer + wpos, MBUF_SIZE - wpos)) < 0) {
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if (errno == EINTR) continue;
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//if (errno == EINTR) continue;
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return -1;
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} else if (n == 0) {
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return 0;
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@ -120,7 +116,11 @@ int mbuf_read_until(mbuf_t *buf, char c, char *out, size_t max_size) {
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}
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void do_trommel() {
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//TODO: implement
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#ifndef SPOOF
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bcm2835_gpio_write(TROMMEL_PIN, HIGH);
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bcm2835_delay(250);
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bcm2835_gpio_write(TROMMEL_PIN, LOW);
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#endif //SPOOF
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}
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int do_handshake(mbuf_t *mbuf) {
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@ -132,6 +132,7 @@ int do_handshake(mbuf_t *mbuf) {
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return -1;
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}
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// oed\0
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size_t response_size = reslen + 4;
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char *response = (char *) malloc(response_size);
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response[0] = '\0';
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@ -140,7 +141,7 @@ int do_handshake(mbuf_t *mbuf) {
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strcat(response, "go");
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}
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strcat(response, "ed\n");
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if (write(mbuf->sock, response, response_size) < 0) return -1;
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if (write(mbuf->sock, response, response_size - 1) < 0) return -1;
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free(response);
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return 0;
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}
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@ -154,9 +155,7 @@ int do_command_loop(mbuf_t *mbuf) {
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if (len == 0) return 0;
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LOGF("COMMANDO: %s", buf);
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if (strcmp(buf, "trommel") == 0) {
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bcm2835_gpio_write(TROMMEL_PIN, HIGH);
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bcm2835_delay(250);
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bcm2835_gpio_write(TROMMEL_PIN, LOW);
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do_trommel();
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const char *ok = "oké\n";
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write(mbuf->sock, ok, strlen(ok) * sizeof(char));
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} else if (strcmp(buf, "ping") == 0) {
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@ -171,53 +170,44 @@ int do_command_loop(mbuf_t *mbuf) {
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}
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int main(int argc, char *argv[]) {
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log_file = stderr;
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#ifdef LOG_PREFIX
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log_prefix_length = strlen(LOG_PREFIX);
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#endif
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openlog(argv[0], LOG_ODELAY, LOG_DAEMON);
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if (argc < 3) {
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const char *format = "GEBRUIK: %s [ADRES] [POORT]";
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size_t length = strlen(argv[0]) + strlen(format);
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char *msg = (char *) malloc(length);
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snprintf(msg, length, format, argv[0]);
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LOG(msg);
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free(msg);
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LOGF("GEBRUIK: %s ADRES POORT", argv[0]);
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return EXIT_FAILURE;
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}
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LOG("Kerstezel starten");
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// Daemonize
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pid_t pid;
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pid = quit_if_fail(fork(), "Kon niet vorken");
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if (pid > 0) exit(EXIT_SUCCESS);
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//pid_t pid;
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//pid = quit_if_fail(fork(), "Kon niet vorken");
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//if (pid > 0) exit(EXIT_SUCCESS);
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quit_if_fail(chdir("/"), "Kon werkmap niet veranderen");
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quit_if_fail(setsid(), "Kon sid niet veranderen");
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//quit_if_fail(setsid(), "Kon sid niet veranderen");
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// Zorg ervoor dat de daemon geen TTY kan bemachtigen
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pid = quit_if_fail(fork(), "Kon niet vorken");
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if (pid > 0) exit(EXIT_SUCCESS);
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log_file = fopen(log_path, "a");
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if (log_file == NULL) {
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// Kan niet loggen lol
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exit(EXIT_FAILURE);
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}
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//pid = quit_if_fail(fork(), "Kon niet vorken");
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//if (pid > 0) exit(EXIT_SUCCESS);
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// WRITE PIDFILE
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FILE *fd = fopen(pid_path, "w");
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/*FILE *fd = fopen(pid_path, "w");
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if (fd != NULL) {
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fprintf(fd, "%d", getpid());
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fclose(fd);
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}
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}*/
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close(STDIN_FILENO);
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close(STDOUT_FILENO);
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close(STDERR_FILENO);
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#ifndef SPOOF
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bcm2835_init();
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bcm2835_gpio_fsel(TROMMEL_PIN, BCM2835_GPIO_FSEL_OUTP);
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if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) < 0) {
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LOGF("Kon seccomp niet aanroepen: %s", strerror(errno));
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}
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LOG("bcm2835 geinitialiseerd")
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#endif //SPOOF
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struct addrinfo hints, *servinfo, *p;
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@ -258,12 +248,18 @@ int main(int argc, char *argv[]) {
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quit_if_fail(res, "Kon niet verbinden");
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//(void) quit_if_fail(connect(buf->sock, (struct sockaddr *) &serv_addr, sizeof(serv_addr)), "Kon niet verbinden");
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/*if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) < 0) {
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LOGF("Kon seccomp niet aanroepen: %s", strerror(errno));
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}*/
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(void) quit_if_fail(do_handshake(buf), "Handenschudden mislukt");
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LOG("Handjeschudden voltooid")
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(void) quit_if_fail(do_command_loop(buf), "Fout");
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LOG("De andere kant heeft de verbinding verbroken");
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free(buf);
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#ifndef SPOOF
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bcm2835_close();
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#endif //SPOOF
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return 0;
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}
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