along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: process.c,v 1.1.2.56 2003/07/21 14:47:43 guus Exp $
+ $Id: process.c,v 1.1.2.58 2003/07/28 22:06:09 guus Exp $
*/
#include "system.h"
#include "xalloc.h"
/* If zero, don't detach from the terminal. */
-int do_detach = 1;
+bool do_detach = true;
+bool sighup = false;
+bool sigalrm = false;
extern char *identname;
extern char *pidfilename;
extern char **g_argv;
-extern int use_logfile;
+extern bool use_logfile;
sigset_t emptysigset;
static int saved_debug_level = -1;
-extern int sighup;
-extern int sigalrm;
-extern int do_purge;
-
static void memory_full(int size)
{
logger(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exitting."), size);
exit(c);
}
+#ifndef HAVE_MINGW
/*
check for an existing tinc for this net, and write pid to pidfile
*/
-static int write_pidfile(void)
+static bool write_pidfile(void)
{
int pid;
netname, pid);
else
fprintf(stderr, _("A tincd is already running with pid %d.\n"), pid);
- return 1;
+ return false;
}
/* if it's locked, write-protected, or whatever */
if(!write_pid(pidfilename))
- return 1;
+ return false;
- return 0;
+ return true;
}
+#endif
/*
kill older tincd for this net
*/
-int kill_other(int signal)
+bool kill_other(int signal)
{
+#ifndef HAVE_MINGW
int pid;
cp();
netname);
else
fprintf(stderr, _("No other tincd is running.\n"));
- return 1;
+ return false;
}
errno = 0; /* No error, sometimes errno is only changed on error */
fprintf(stderr, _("Removing stale lock file.\n"));
remove_pid(pidfilename);
}
+#endif
- return 0;
+ return true;
}
/*
Detach from current terminal, write pidfile, kill parent
*/
-int detach(void)
+bool detach(void)
{
cp();
/* First check if we can open a fresh new pidfile */
- if(write_pidfile())
- return -1;
+#ifndef HAVE_MINGW
+ if(!write_pidfile())
+ return false;
+#endif
/* If we succeeded in doing that, detach */
closelogger();
+#ifdef HAVE_FORK
if(do_detach) {
- if(daemon(0, 0) < 0) {
+ if(daemon(0, 0)) {
fprintf(stderr, _("Couldn't detach from terminal: %s"),
strerror(errno));
- return -1;
+ return false;
}
/* Now UPDATE the pid in the pidfile, because we changed it... */
if(!write_pid(pidfilename))
- return -1;
+ return false;
}
+#endif
openlogger(identname, use_logfile?LOGMODE_FILE:(do_detach?LOGMODE_SYSLOG:LOGMODE_STDERR));
xalloc_fail_func = memory_full;
- return 0;
+ return true;
}
+#ifdef HAVE_FORK
/*
Execute the program name, with sane environment.
*/
strerror(save_errno));
exit(save_errno);
}
+#endif
/*
Fork and execute the program pointed to by name.
*/
-int execute_script(const char *name, char **envp)
+bool execute_script(const char *name, char **envp)
{
+#ifdef HAVE_FORK
pid_t pid;
int status;
struct stat s;
/* First check if there is a script */
if(stat(scriptname, &s))
- return 0;
+ return true;
pid = fork();
if(pid < 0) {
logger(LOG_ERR, _("System call `%s' failed: %s"), "fork",
strerror(errno));
- return -1;
+ return false;
}
if(pid) {
if(WEXITSTATUS(status)) {
logger(LOG_ERR, _("Process %d (%s) exited with non-zero status %d"),
pid, name, WEXITSTATUS(status));
- return -1;
+ return false;
} else
- return 0;
+ return true;
} else if(WIFSIGNALED(status)) { /* Child was killed by a signal */
logger(LOG_ERR, _("Process %d (%s) was killed by signal %d (%s)"), pid,
name, WTERMSIG(status), strsignal(WTERMSIG(status)));
- return -1;
+ return false;
} else { /* Something strange happened */
logger(LOG_ERR, _("Process %d (%s) terminated abnormally"), pid,
name);
- return -1;
+ return false;
}
} else if (errno != EINTR) {
logger(LOG_ERR, _("System call `%s' failed: %s"), "waitpid",
strerror(errno));
- return -1;
+ return false;
}
/* Why do we get EINTR? */
- return 0;
+ return true;
}
/* Child here */
_execute_script(scriptname, envp);
+#else
+ return true;
+#endif
}
Signal handlers.
*/
+#ifndef HAVE_MINGW
static RETSIGTYPE sigterm_handler(int a)
{
logger(LOG_NOTICE, _("Got TERM signal"));
static RETSIGTYPE sighup_handler(int a)
{
logger(LOG_NOTICE, _("Got HUP signal"));
- sighup = 1;
+ sighup = true;
}
static RETSIGTYPE sigint_handler(int a)
static RETSIGTYPE sigalrm_handler(int a)
{
logger(LOG_NOTICE, _("Got ALRM signal"));
- sigalrm = 1;
+ sigalrm = true;
}
static RETSIGTYPE sigusr1_handler(int a)
static RETSIGTYPE sigwinch_handler(int a)
{
- extern int do_purge;
- do_purge = 1;
+ do_purge = true;
}
static RETSIGTYPE unexpected_signal_handler(int a)
int signal;
void (*handler)(int);
} sighandlers[] = {
- {
- SIGHUP, sighup_handler}, {
- SIGTERM, sigterm_handler}, {
- SIGQUIT, sigquit_handler}, {
- SIGSEGV, fatal_signal_handler}, {
- SIGBUS, fatal_signal_handler}, {
- SIGILL, fatal_signal_handler}, {
- SIGPIPE, ignore_signal_handler}, {
- SIGINT, sigint_handler}, {
- SIGUSR1, sigusr1_handler}, {
- SIGUSR2, sigusr2_handler}, {
- SIGCHLD, ignore_signal_handler}, {
- SIGALRM, sigalrm_handler}, {
- SIGWINCH, sigwinch_handler}, {
- 0, NULL}
+ {SIGHUP, sighup_handler},
+ {SIGTERM, sigterm_handler},
+ {SIGQUIT, sigquit_handler},
+ {SIGSEGV, fatal_signal_handler},
+ {SIGBUS, fatal_signal_handler},
+ {SIGILL, fatal_signal_handler},
+ {SIGPIPE, ignore_signal_handler},
+ {SIGINT, sigint_handler},
+ {SIGUSR1, sigusr1_handler},
+ {SIGUSR2, sigusr2_handler},
+ {SIGCHLD, ignore_signal_handler},
+ {SIGALRM, sigalrm_handler},
+ {SIGWINCH, sigwinch_handler},
+ {0, NULL}
};
+#endif
void setup_signals(void)
{
+#ifndef HAVE_MINGW
int i;
struct sigaction act;
sighandlers[i].signal, strsignal(sighandlers[i].signal),
strerror(errno));
}
+#endif
}
projects / tinc / blobdiff