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#include <signal.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include "triton/triton.h"
#include "memdebug.h"
#include "log.h"
static int goto_daemon;
static char *pid_file;
static char *conf_file;
#define ARG_MAX 128
static int parse_cmdline(char ***argv)
{
FILE *f;
int i;
size_t len;
f = fopen("/proc/self/cmdline", "r");
if (!f) {
perror("open cmdline");
_exit(EXIT_FAILURE);
}
*argv = _malloc(ARG_MAX * sizeof(void *));
memset(*argv, 0, ARG_MAX * sizeof(void *));
for(i = 0; i < ARG_MAX; i++) {
len = 0;
if (getdelim(&(*argv)[i], &len, 0, f) < 0)
break;
}
fclose(f);
return i;
}
static void __init __main(void)
{
int i,argc;
char **argv;
argc=parse_cmdline(&argv);
if (argc < 2)
goto usage;
for(i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-d"))
goto_daemon = 1;
else if (!strcmp(argv[i], "-p")) {
if (i == argc - 1)
goto usage;
pid_file = argv[++i];
} else if (!strcmp(argv[i], "-c")) {
if (i == argc - 1)
goto usage;
conf_file = argv[++i];
}
}
if (!conf_file)
goto usage;
if (triton_init(conf_file))
_exit(EXIT_FAILURE);
return;
usage:
printf("usage: pptpd [-d] [-p <file>] -c <file>\n\
where:\n\
-d - daemon mode\n\
-p - write pid to <file>\n\
-c - config file\n");
_exit(EXIT_FAILURE);
}
static void change_limits(void)
{
FILE *f;
struct rlimit lim;
unsigned int file_max;
f = fopen("/proc/sys/fs/file-max", "r");
if (f) {
fscanf(f, "%d", &file_max);
fclose(f);
lim.rlim_cur = file_max;
lim.rlim_max = file_max;
if (setrlimit(RLIMIT_NOFILE, &lim))
log_emerg("main: setrlimit: %s\n", strerror(errno));
} else
log_emerg("main: failed to open '/proc/sys/fs/file-max': %s\n", strerror(errno));
}
int main(int argc, char **argv)
{
sigset_t set;
int sig;
if (goto_daemon) {
/*pid_t pid = fork();
if (pid > 0)
_exit(EXIT_SUCCESS);
if (pid < 0) {
perror("fork");
return EXIT_FAILURE;
}
if (setsid() < 0)
_exit(EXIT_FAILURE);
pid = fork();
if (pid)
_exit(0);
umask(0);
chdir("/");
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);*/
daemon(0, 0);
}
if (pid_file) {
FILE *f = fopen(pid_file, "w");
if (f) {
fprintf(f, "%i", getpid());
fclose(f);
}
}
//signal(SIGTERM, sigterm);
//signal(SIGPIPE, sigterm);
change_limits();
if (triton_load_modules("modules"))
return EXIT_FAILURE;
triton_run();
sigfillset(&set);
sigdelset(&set, SIGKILL);
sigdelset(&set, SIGSTOP);
sigdelset(&set, SIGSEGV);
sigdelset(&set, SIGFPE);
sigdelset(&set, SIGILL);
sigdelset(&set, SIGBUS);
sigdelset(&set, SIGHUP);
sigdelset(&set, SIGIO);
sigdelset(&set, SIGINT);
sigdelset(&set, 35);
sigdelset(&set, 36);
pthread_sigmask(SIG_SETMASK, &set, NULL);
sigemptyset(&set);
//sigaddset(&set, SIGINT);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGSEGV);
sigaddset(&set, SIGILL);
sigaddset(&set, SIGFPE);
sigaddset(&set, SIGBUS);
sigwait(&set, &sig);
log_info1("terminate, sig = %i\n", sig);
triton_terminate();
return EXIT_SUCCESS;
}
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