From 7f87c3d9134612041d56180ea7fc3e6c37991f6b Mon Sep 17 00:00:00 2001 From: Ivo Timmermans Date: Wed, 15 Nov 2000 22:07:36 +0000 Subject: [PATCH] Keep a list of running children, and in each loop in main_loop(), check if one has exited. --- src/net.c | 90 ++++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 66 insertions(+), 24 deletions(-) diff --git a/src/net.c b/src/net.c index e7297d19..2e06a39e 100644 --- a/src/net.c +++ b/src/net.c @@ -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 } -- 2.20.1