/**
* Serve a single file on stdin, and then exit.
**/
static int dcc_inetd_server(void)
{
int ret, close_ret;
struct dcc_sockaddr_storage ss;
struct sockaddr *psa = (struct sockaddr *) &ss;
socklen_t len = sizeof ss;
dcc_log_daemon_started("inetd server");
if ((getpeername(STDIN_FILENO, psa, &len) == -1)) {
/* This can fail with ENOTSOCK if e.g. sshd has started us on a pipe,
* not on a socket. I think it's harmless. */
rs_log_notice("failed to get peer name: %s", strerror(errno));
psa = NULL; /* make sure we don't refer to uninitialized mem */
len = 0;
}
ret = dcc_service_job(STDIN_FILENO, STDOUT_FILENO, psa, len);
close_ret = dcc_close(STDIN_FILENO);
if (ret)
return ret;
else
return close_ret;
}
/**
* Fork a child to repeatedly accept and handle incoming connections.
*
* To protect against leaks, we quit after 50 requests and let the parent
* recreate us.
**/
static int dcc_preforked_child(int listen_fd)
{
int ireq;
const int child_lifetime = 50;
for (ireq = 0; ireq < child_lifetime; ireq++) {
int acc_fd;
struct dcc_sockaddr_storage cli_addr;
socklen_t cli_len;
cli_len = sizeof cli_addr;
do {
acc_fd = accept(listen_fd, (struct sockaddr *) &cli_addr,
&cli_len);
} while (acc_fd == -1 && errno == EINTR);
if (acc_fd == -1) {
rs_log_error("accept failed: %s", strerror(errno));
dcc_exit(EXIT_CONNECT_FAILED);
}
dcc_service_job(acc_fd, acc_fd,
(struct sockaddr *) &cli_addr, cli_len);
dcc_close(acc_fd);
}
rs_log_info("worn out");
return 0;
}
/**
* Main loop for no-fork mode.
*
* Much slower and may leak. Should only be used when you want to run gdb on
* distccd.
**/
static void dcc_nofork_parent(int listen_fd)
{
while (1) {
int acc_fd;
struct dcc_sockaddr_storage cli_addr;
socklen_t cli_len;
rs_log_info("waiting to accept connection");
cli_len = sizeof cli_addr;
acc_fd = accept(listen_fd,
(struct sockaddr *) &cli_addr, &cli_len);
if (acc_fd == -1 && errno == EINTR) {
;
} else if (acc_fd == -1) {
rs_log_error("accept failed: %s", strerror(errno));
#ifdef HAVE_GSSAPI
if (dcc_auth_enabled) {
dcc_gssapi_release_credentials();
if (opt_blacklist_enabled || opt_whitelist_enabled) {
dcc_gssapi_free_list();
}
}
#endif
dcc_exit(EXIT_CONNECT_FAILED);
} else {
dcc_service_job(acc_fd, acc_fd, (struct sockaddr *) &cli_addr, cli_len);
dcc_close(acc_fd);
}
}
}
