return True;
}
-void udp_make_socket(struct udpcommon *uc, struct udpsock *us)
+void udp_destroy_socket(struct udpcommon *uc, struct udpsock *us)
+{
+ if (us->fd>=0) {
+ close(us->fd);
+ us->fd=-1;
+ }
+}
+
+bool_t udp_make_socket(struct udpcommon *uc, struct udpsock *us,
+ int failmsgclass)
{
const union iaddr *addr=&us->addr;
struct commcommon *cc=&uc->cc;
+ us->fd=-1;
+
+#define FAIL_LG 0, cc->cl.description, &cc->loc, failmsgclass
+#define FAIL(...) do{ \
+ lg_perror(FAIL_LG,errno,__VA_ARGS__); \
+ goto failed; \
+ }while(0)
us->fd=socket(addr->sa.sa_family, SOCK_DGRAM, IPPROTO_UDP);
- if (us->fd<0) {
- fatal_perror("udp (%s:%d): socket",cc->loc.file,cc->loc.line);
- }
- if (fcntl(us->fd, F_SETFL, fcntl(us->fd, F_GETFL)|O_NONBLOCK)==-1) {
- fatal_perror("udp (%s:%d): fcntl(set O_NONBLOCK)",
- cc->loc.file,cc->loc.line);
- }
+ if (us->fd<0) FAIL("socket");
+ if (fcntl(us->fd, F_SETFL, fcntl(us->fd, F_GETFL)|O_NONBLOCK)==-1)
+ FAIL("fcntl(set O_NONBLOCK)");
setcloexec(us->fd);
#ifdef CONFIG_IPV6
if (addr->sa.sa_family==AF_INET6) {
int optval=1;
socklen_t optlen=sizeof(optval);
r=setsockopt(us->fd,IPPROTO_IPV6,IPV6_V6ONLY,&optval,optlen);
- if (r) fatal_perror("udp (%s:%d): setsockopt(,IPV6_V6ONLY,&1,)",
- cc->loc.file,cc->loc.line);
+ if (r) FAIL("setsockopt(,IPV6_V6ONLY,&1,)");
}
#endif
/* XXX this fork() and waitpid() business needs to be hidden
in some system-specific library functions. */
c=fork();
- if (c==-1) {
- fatal_perror("udp_phase_hook: fork() for authbind");
- }
+ if (c==-1)
+ FAIL("fork() for authbind");
if (c==0) {
char *argv[5], addrstr[33], portstr[5];
const char *addrfam;
int port;
+ afterfork();
switch (addr->sa.sa_family) {
case AF_INET:
sprintf(addrstr,"%08lX",(long)addr->sin.sin_addr.s_addr);
}
while (waitpid(c,&status,0)==-1) {
if (errno==EINTR) continue;
- fatal_perror("udp (%s:%d): authbind",cc->loc.file,cc->loc.line);
+ FAIL("waitpid for authbind");
}
- if (WIFSIGNALED(status)) {
- fatal("udp (%s:%d): authbind died on signal %d",cc->loc.file,
- cc->loc.line, WTERMSIG(status));
- }
- if (WIFEXITED(status) && WEXITSTATUS(status)!=0) {
- fatal("udp (%s:%d): authbind died with status %d",cc->loc.file,
- cc->loc.line, WEXITSTATUS(status));
+ if (status) {
+ lg_exitstatus(FAIL_LG,status,"authbind");
+ goto failed;
}
} else {
- if (bind(us->fd, &addr->sa, iaddr_socklen(addr))!=0) {
- fatal_perror("udp (%s:%d): bind",cc->loc.file,cc->loc.line);
- }
+ if (bind(us->fd, &addr->sa, iaddr_socklen(addr))!=0)
+ FAIL("bind (%s)",iaddr_to_string(addr));
}
+ return True;
+
+failed:
+ udp_destroy_socket(uc,us);
+ return False;
+
+#undef FAIL
}
void udp_socks_register(struct udpcommon *uc, struct udpsocks *socks)
{
socks->uc=uc;
- register_for_poll(socks,udp_socks_beforepoll,udp_socks_afterpoll,"udp");
+ socks->interest=
+ register_for_poll(socks,udp_socks_beforepoll,udp_socks_afterpoll,"udp");
+}
+
+void udp_socks_deregister(struct udpcommon *uc, struct udpsocks *socks)
+{
+ socks->uc=uc;
+ deregister_for_poll(socks->interest);
}
static void udp_phase_hook(void *sst, uint32_t new_phase)
struct udpcommon *uc=&st->uc;
int i;
for (i=0; i<socks->n_socks; i++)
- udp_make_socket(uc,&socks->socks[i]);
+ udp_make_socket(uc,&socks->socks[i],M_FATAL);
udp_socks_register(uc,socks);
}