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Keep a list of running children, and in each loop in main_loop(),

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check if one has exited.
This commit is contained in:
Ivo Timmermans 2000-11-15 22:07:36 +00:00
parent d9ce5a7f3f
commit 7f87c3d913
1 changed files with 66 additions and 24 deletions
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90
src/net.c
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@ -17,7 +17,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: net.c,v 1.35.4.73 2000/11/15 13:33:26 guus Exp $
$Id: net.c,v 1.35.4.74 2000/11/15 22:07:36 zarq Exp $
*/
#include "config.h"
@ -68,6 +68,7 @@
#include "conf.h"
#include "connlist.h"
#include "list.h"
#include "meta.h"
#include "net.h"
#include "netutl.h"
@ -93,32 +94,14 @@ char *unknown = NULL;
subnet_t mymac;
/*
Execute the given script.
This function doesn't really belong here.
*/
int execute_script(const char *name)
list_t *child_pids;
void _execute_script(const char *name)
{
int error = 0;
char *scriptname;
pid_t pid;
char *s;
int error;
if((pid = fork()) < 0)
{
syslog(LOG_ERR, _("System call `%s' failed: %m"),
"fork");
return -1;
}
if(pid)
{
return 0;
}
/* Child here */
error = 0;
int fd;
if(netname)
{
@ -184,6 +167,61 @@ int execute_script(const char *name)
exit(0);
}
/*
Execute the given script.
This function doesn't really belong here.
*/
int execute_script(const char *name)
{
pid_t pid;
if((pid = fork()) < 0)
{
syslog(LOG_ERR, _("System call `%s' failed: %m"),
"fork");
return -1;
}
if(pid)
{
list_append(child_pids, pid);
return 0;
}
/* Child here */
_execute_script(name);
}
int check_child(void *data)
{
pid_t pid;
int status;
pid = (pid_t) data;
pid = waitpid(pid, &status, WNOHANG);
if(WIFEXITED(status))
{
if(WIFSIGNALED(status)) /* Child was killed by a signal */
{
syslog(LOG_ERR, _("Child with PID %d was killed by signal %d (%s)"),
pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
return -1;
}
if(WEXITSTATUS(status) != 0)
{
syslog(LOG_INFO, _("Child with PID %d exited with code %d"),
WEXITSTATUS(status));
}
return -1;
}
}
void check_children(void)
{
list_forall_nodes(child_pids, check_child);
}
int xsend(conn_list_t *cl, vpn_packet_t *inpkt)
{
vpn_packet_t outpkt;
@ -893,6 +931,8 @@ cp
myself->status.active = 1;
syslog(LOG_NOTICE, _("Ready: listening on port %hd"), myself->port);
child_pids = list_new();
cp
return 0;
}
@ -1481,6 +1521,8 @@ cp
if(FD_ISSET(tap_fd, &fset))
handle_tap_input();
}
check_children();
}
cp
}