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New option -D, don't detach.
author
Ivo Timmermans
<ivo@lychnis.net>
Thu, 6 Apr 2000 18:28:29 +0000
(18:28 +0000)
committer
Ivo Timmermans
<ivo@lychnis.net>
Thu, 6 Apr 2000 18:28:29 +0000
(18:28 +0000)
src/tincd.c
patch
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diff --git
a/src/tincd.c
b/src/tincd.c
index
809e606
..
433b5e6
100644
(file)
--- a/
src/tincd.c
+++ b/
src/tincd.c
@@
-17,6
+17,13
@@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+/*
+ * $Log: tincd.c,v $
+ * Revision 1.4 2000/04/06 18:28:29 zarq
+ * New option -D, don't detach.
+ *
+ */
+
#include "config.h"
#include <errno.h>
#include "config.h"
#include <errno.h>
@@
-53,6
+60,9
@@
static int show_version;
/* If nonzero, it will attempt to kill a running tincd and exit. */
static int kill_tincd = 0;
/* If nonzero, it will attempt to kill a running tincd and exit. */
static int kill_tincd = 0;
+/* If zero, don't detach from the terminal. */
+static int do_detach = 1;
+
char *confbase = NULL; /* directory in which all config files are */
char *configfilename = NULL; /* configuration file name */
char *identname; /* program name for syslog */
char *confbase = NULL; /* directory in which all config files are */
char *configfilename = NULL; /* configuration file name */
char *identname; /* program name for syslog */
@@
-76,6
+86,7
@@
static struct option const long_options[] =
{ "timeout", required_argument, NULL, 'p' },
{ "help", no_argument, &show_help, 1 },
{ "version", no_argument, &show_version, 1 },
{ "timeout", required_argument, NULL, 'p' },
{ "help", no_argument, &show_help, 1 },
{ "version", no_argument, &show_version, 1 },
+ { "no-detach", no_argument, &do_detach, 0 },
{ NULL, 0, NULL, 0 }
};
{ NULL, 0, NULL, 0 }
};
@@
-88,6
+99,7
@@
usage(int status)
{
printf("Usage: %s [option]...\n\n", program_name);
printf(" -c, --config=FILE Read configuration options from FILE.\n"
{
printf("Usage: %s [option]...\n\n", program_name);
printf(" -c, --config=FILE Read configuration options from FILE.\n"
+ " -D, --no-detach Don't fork and detach.\n"
" -d Increase debug level.\n"
" -k, --kill Attempt to kill a running tincd and exit.\n"
" -n, --net=NETNAME Connect to net NETNAME.\n"
" -d Increase debug level.\n"
" -k, --kill Attempt to kill a running tincd and exit.\n"
" -n, --net=NETNAME Connect to net NETNAME.\n"
@@
-106,7
+118,7
@@
parse_options(int argc, char **argv, char **envp)
int option_index = 0;
config_t *p;
int option_index = 0;
config_t *p;
- while((r = getopt_long(argc, argv, "c:dkn:t:", long_options, &option_index)) != EOF)
+ while((r = getopt_long(argc, argv, "c:
D
dkn:t:", long_options, &option_index)) != EOF)
{
switch(r)
{
{
switch(r)
{
@@
-116,6
+128,9
@@
parse_options(int argc, char **argv, char **envp)
configfilename = xmalloc(strlen(optarg)+1);
strcpy(configfilename, optarg);
break;
configfilename = xmalloc(strlen(optarg)+1);
strcpy(configfilename, optarg);
break;
+ case 'D': /* no detach */
+ do_detach = 0;
+ break;
case 'd': /* inc debug level */
debug_lvl++;
break;
case 'd': /* inc debug level */
debug_lvl++;
break;
@@
-154,37
+169,44
@@
int detach(void)
{
int fd;
pid_t pid;
{
int fd;
pid_t pid;
-
- ppid = getpid();
- if((pid = fork()) < 0)
- {
- perror("fork");
- return -1;
- }
- if(pid) /* parent process */
+
+ if(do_detach)
{
{
- signal(SIGTERM, parent_exit);
- sleep(600); /* wait 10 minutes */
- exit(1);
- }
+ ppid = getpid();
+ if((pid = fork()) < 0)
+ {
+ perror("fork");
+ return -1;
+ }
+ if(pid) /* parent process */
+ {
+ signal(SIGTERM, parent_exit);
+ sleep(600); /* wait 10 minutes */
+ exit(1);
+ }
+ }
+
if(write_pidfile())
return -1;
if(write_pidfile())
return -1;
- if(
(fd = open("/dev/tty", O_RDWR)) >= 0
)
+ if(
do_detach
)
{
{
- if(
ioctl(fd, TIOCNOTTY, NULL)
)
+ if(
(fd = open("/dev/tty", O_RDWR)) >= 0
)
{
{
- perror("ioctl");
- return -1;
+ if(ioctl(fd, TIOCNOTTY, NULL))
+ {
+ perror("ioctl");
+ return -1;
+ }
+ close(fd);
}
}
- close(fd);
- }
- if(setsid() < 0)
- return -1;
+
if(setsid() < 0)
+
return -1;
- kill(ppid, SIGTERM);
+ kill(ppid, SIGTERM);
+ }
chdir("/"); /* avoid keeping a mointpoint busy */
chdir("/"); /* avoid keeping a mointpoint busy */
@@
-460,7
+482,7
@@
setup_signals(void)
signal(SIGINT, sigint_handler);
signal(SIGUSR1, sigusr1_handler);
signal(SIGUSR2, sigusr2_handler);
signal(SIGINT, sigint_handler);
signal(SIGUSR1, sigusr1_handler);
signal(SIGUSR2, sigusr2_handler);
- signal(SIGCHLD,
SIG_IGN
);
+ signal(SIGCHLD,
parent_exit
);
}
RETSIGTYPE parent_exit(int a)
}
RETSIGTYPE parent_exit(int a)