68af8e7a08
help texts: trimmed a bit static.udhcpc_longopts 227 209 -18 udhcpc_main 2633 2590 -43 packed_usage 22927 22871 -56 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-117) Total: -117 bytes
608 lines
17 KiB
C
608 lines
17 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/* dhcpc.c
|
|
*
|
|
* udhcp DHCP client
|
|
*
|
|
* Russ Dill <Russ.Dill@asu.edu> July 2001
|
|
*
|
|
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
|
*/
|
|
|
|
#include <getopt.h>
|
|
#include <syslog.h>
|
|
|
|
/* Override ENABLE_FEATURE_PIDFILE - ifupdown needs our pidfile to always exist */
|
|
#define WANT_PIDFILE 1
|
|
#include "common.h"
|
|
#include "dhcpd.h"
|
|
#include "dhcpc.h"
|
|
#include "options.h"
|
|
|
|
|
|
/* Something is definitely wrong here. IPv4 addresses
|
|
* in variables of type long?? BTW, we use inet_ntoa()
|
|
* in the code. Manpage says that struct in_addr has a member of type long (!)
|
|
* which holds IPv4 address, and the struct is passed by value (!!)
|
|
*/
|
|
static int timeout; /* = 0. Must be signed */
|
|
static uint32_t requested_ip; /* = 0 */
|
|
static uint32_t server_addr;
|
|
static int packet_num; /* = 0 */
|
|
static int sockfd = -1;
|
|
|
|
#define LISTEN_NONE 0
|
|
#define LISTEN_KERNEL 1
|
|
#define LISTEN_RAW 2
|
|
static smallint listen_mode;
|
|
|
|
static smallint state;
|
|
|
|
/* struct client_config_t client_config is in bb_common_bufsiz1 */
|
|
|
|
|
|
/* just a little helper */
|
|
static void change_listen_mode(int new_mode)
|
|
{
|
|
DEBUG("entering %s listen mode",
|
|
new_mode ? (new_mode == 1 ? "kernel" : "raw") : "none");
|
|
if (sockfd >= 0) {
|
|
close(sockfd);
|
|
sockfd = -1;
|
|
}
|
|
listen_mode = new_mode;
|
|
}
|
|
|
|
|
|
/* perform a renew */
|
|
static void perform_renew(void)
|
|
{
|
|
bb_info_msg("Performing a DHCP renew");
|
|
switch (state) {
|
|
case BOUND:
|
|
change_listen_mode(LISTEN_KERNEL);
|
|
case RENEWING:
|
|
case REBINDING:
|
|
state = RENEW_REQUESTED;
|
|
break;
|
|
case RENEW_REQUESTED: /* impatient are we? fine, square 1 */
|
|
udhcp_run_script(NULL, "deconfig");
|
|
case REQUESTING:
|
|
case RELEASED:
|
|
change_listen_mode(LISTEN_RAW);
|
|
state = INIT_SELECTING;
|
|
break;
|
|
case INIT_SELECTING:
|
|
break;
|
|
}
|
|
|
|
/* start things over */
|
|
packet_num = 0;
|
|
|
|
/* Kill any timeouts because the user wants this to hurry along */
|
|
timeout = 0;
|
|
}
|
|
|
|
|
|
/* perform a release */
|
|
static void perform_release(void)
|
|
{
|
|
char buffer[sizeof("255.255.255.255")];
|
|
struct in_addr temp_addr;
|
|
|
|
/* send release packet */
|
|
if (state == BOUND || state == RENEWING || state == REBINDING) {
|
|
temp_addr.s_addr = server_addr;
|
|
strcpy(buffer, inet_ntoa(temp_addr));
|
|
temp_addr.s_addr = requested_ip;
|
|
bb_info_msg("Unicasting a release of %s to %s",
|
|
inet_ntoa(temp_addr), buffer);
|
|
send_release(server_addr, requested_ip); /* unicast */
|
|
udhcp_run_script(NULL, "deconfig");
|
|
}
|
|
bb_info_msg("Entering released state");
|
|
|
|
change_listen_mode(LISTEN_NONE);
|
|
state = RELEASED;
|
|
timeout = INT_MAX;
|
|
}
|
|
|
|
|
|
static void client_background(void)
|
|
{
|
|
#if !BB_MMU
|
|
bb_error_msg("cannot background in uclinux (yet)");
|
|
/* ... mainly because udhcpc calls client_background()
|
|
* in _the _middle _of _udhcpc _run_, not at the start!
|
|
* If that will be properly disabled for NOMMU, client_background()
|
|
* will work on NOMMU too */
|
|
#else
|
|
bb_daemonize(0);
|
|
logmode &= ~LOGMODE_STDIO;
|
|
/* rewrite pidfile, as our pid is different now */
|
|
write_pidfile(client_config.pidfile);
|
|
#endif
|
|
/* Do not fork again. */
|
|
client_config.foreground = 1;
|
|
client_config.background_if_no_lease = 0;
|
|
}
|
|
|
|
|
|
static uint8_t* alloc_dhcp_option(int code, const char *str, int extra)
|
|
{
|
|
uint8_t *storage;
|
|
int len = strlen(str);
|
|
if (len > 255) len = 255;
|
|
storage = xzalloc(len + extra + OPT_DATA);
|
|
storage[OPT_CODE] = code;
|
|
storage[OPT_LEN] = len + extra;
|
|
memcpy(storage + extra + OPT_DATA, str, len);
|
|
return storage;
|
|
}
|
|
|
|
|
|
int udhcpc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int udhcpc_main(int argc, char **argv)
|
|
{
|
|
uint8_t *temp, *message;
|
|
char *str_c, *str_V, *str_h, *str_F, *str_r, *str_T, *str_A, *str_t;
|
|
#if ENABLE_FEATURE_UDHCPC_ARPING
|
|
char *str_W;
|
|
#endif
|
|
int tryagain_timeout = 20;
|
|
int discover_timeout = 3;
|
|
int discover_retries = 3;
|
|
uint32_t xid = 0;
|
|
uint32_t lease_seconds = 0; /* can be given as 32-bit quantity */
|
|
unsigned t1 = 0, t2 = 0; /* what a wonderful names */
|
|
unsigned timestamp_got_lease = 0; /* for gcc */
|
|
unsigned opt;
|
|
int max_fd;
|
|
int retval;
|
|
int len;
|
|
struct timeval tv;
|
|
struct in_addr temp_addr;
|
|
struct dhcpMessage packet;
|
|
fd_set rfds;
|
|
|
|
enum {
|
|
OPT_c = 1 << 0,
|
|
OPT_C = 1 << 1,
|
|
OPT_V = 1 << 2,
|
|
OPT_f = 1 << 3,
|
|
OPT_b = 1 << 4,
|
|
OPT_H = 1 << 5,
|
|
OPT_h = 1 << 6,
|
|
OPT_F = 1 << 7,
|
|
OPT_i = 1 << 8,
|
|
OPT_n = 1 << 9,
|
|
OPT_p = 1 << 10,
|
|
OPT_q = 1 << 11,
|
|
OPT_R = 1 << 12,
|
|
OPT_r = 1 << 13,
|
|
OPT_s = 1 << 14,
|
|
OPT_T = 1 << 15,
|
|
OPT_t = 1 << 16,
|
|
OPT_v = 1 << 17,
|
|
OPT_S = 1 << 18,
|
|
OPT_A = 1 << 19,
|
|
#if ENABLE_FEATURE_UDHCPC_ARPING
|
|
OPT_a = 1 << 20,
|
|
OPT_W = 1 << 21,
|
|
#endif
|
|
};
|
|
#if ENABLE_GETOPT_LONG
|
|
static const char udhcpc_longopts[] ALIGN1 =
|
|
"clientid\0" Required_argument "c"
|
|
"clientid-none\0" No_argument "C"
|
|
"vendorclass\0" Required_argument "V"
|
|
"foreground\0" No_argument "f"
|
|
"background\0" No_argument "b"
|
|
"hostname\0" Required_argument "H"
|
|
"fqdn\0" Required_argument "F"
|
|
"interface\0" Required_argument "i"
|
|
"now\0" No_argument "n"
|
|
"pidfile\0" Required_argument "p"
|
|
"quit\0" No_argument "q"
|
|
"release\0" No_argument "R"
|
|
"request\0" Required_argument "r"
|
|
"script\0" Required_argument "s"
|
|
"timeout\0" Required_argument "T"
|
|
"version\0" No_argument "v"
|
|
"retries\0" Required_argument "t"
|
|
"tryagain\0" Required_argument "A"
|
|
"syslog\0" No_argument "S"
|
|
#if ENABLE_FEATURE_UDHCPC_ARPING
|
|
"arping\0" No_argument "a"
|
|
#endif
|
|
;
|
|
#endif
|
|
/* Default options. */
|
|
client_config.interface = "eth0";
|
|
client_config.script = DEFAULT_SCRIPT;
|
|
|
|
/* Parse command line */
|
|
opt_complementary = "c--C:C--c"; // mutually exclusive
|
|
#if ENABLE_GETOPT_LONG
|
|
applet_long_options = udhcpc_longopts;
|
|
#endif
|
|
opt = getopt32(argv, "c:CV:fbH:h:F:i:np:qRr:s:T:t:vSA:"
|
|
USE_FEATURE_UDHCPC_ARPING("aW:")
|
|
, &str_c, &str_V, &str_h, &str_h, &str_F,
|
|
&client_config.interface, &client_config.pidfile, &str_r,
|
|
&client_config.script, &str_T, &str_t, &str_A
|
|
USE_FEATURE_UDHCPC_ARPING(, &str_W)
|
|
);
|
|
|
|
if (opt & OPT_c)
|
|
client_config.clientid = alloc_dhcp_option(DHCP_CLIENT_ID, str_c, 0);
|
|
//if (opt & OPT_C)
|
|
if (opt & OPT_V)
|
|
client_config.vendorclass = alloc_dhcp_option(DHCP_VENDOR, str_V, 0);
|
|
if (opt & OPT_f)
|
|
client_config.foreground = 1;
|
|
if (opt & OPT_b)
|
|
client_config.background_if_no_lease = 1;
|
|
if (opt & (OPT_h|OPT_H))
|
|
client_config.hostname = alloc_dhcp_option(DHCP_HOST_NAME, str_h, 0);
|
|
if (opt & OPT_F) {
|
|
client_config.fqdn = alloc_dhcp_option(DHCP_FQDN, str_F, 3);
|
|
/* Flags: 0000NEOS
|
|
S: 1 => Client requests Server to update A RR in DNS as well as PTR
|
|
O: 1 => Server indicates to client that DNS has been updated regardless
|
|
E: 1 => Name data is DNS format, i.e. <4>host<6>domain<4>com<0> not "host.domain.com"
|
|
N: 1 => Client requests Server to not update DNS
|
|
*/
|
|
client_config.fqdn[OPT_DATA + 0] = 0x1;
|
|
/* client_config.fqdn[OPT_DATA + 1] = 0; - redundant */
|
|
/* client_config.fqdn[OPT_DATA + 2] = 0; - redundant */
|
|
}
|
|
// if (opt & OPT_i) client_config.interface = ...
|
|
if (opt & OPT_n)
|
|
client_config.abort_if_no_lease = 1;
|
|
// if (opt & OPT_p) client_config.pidfile = ...
|
|
if (opt & OPT_q)
|
|
client_config.quit_after_lease = 1;
|
|
if (opt & OPT_R)
|
|
client_config.release_on_quit = 1;
|
|
if (opt & OPT_r)
|
|
requested_ip = inet_addr(str_r);
|
|
// if (opt & OPT_s) client_config.script = ...
|
|
if (opt & OPT_T)
|
|
discover_timeout = xatoi_u(str_T);
|
|
if (opt & OPT_t)
|
|
discover_retries = xatoi_u(str_t);
|
|
if (opt & OPT_A)
|
|
tryagain_timeout = xatoi_u(str_A);
|
|
if (opt & OPT_v) {
|
|
puts("version "BB_VER);
|
|
return 0;
|
|
}
|
|
|
|
if (opt & OPT_S) {
|
|
openlog(applet_name, LOG_PID, LOG_LOCAL0);
|
|
logmode |= LOGMODE_SYSLOG;
|
|
}
|
|
|
|
if (read_interface(client_config.interface, &client_config.ifindex,
|
|
NULL, client_config.arp))
|
|
return 1;
|
|
|
|
/* Make sure fd 0,1,2 are open */
|
|
bb_sanitize_stdio();
|
|
/* Equivalent of doing a fflush after every \n */
|
|
setlinebuf(stdout);
|
|
|
|
/* Create pidfile */
|
|
write_pidfile(client_config.pidfile);
|
|
/* if (!..) bb_perror_msg("cannot create pidfile %s", pidfile); */
|
|
|
|
/* Goes to stdout and possibly syslog */
|
|
bb_info_msg("%s (v"BB_VER") started", applet_name);
|
|
|
|
/* if not set, and not suppressed, setup the default client ID */
|
|
if (!client_config.clientid && !(opt & OPT_C)) {
|
|
client_config.clientid = alloc_dhcp_option(DHCP_CLIENT_ID, "", 7);
|
|
client_config.clientid[OPT_DATA] = 1;
|
|
memcpy(client_config.clientid + OPT_DATA+1, client_config.arp, 6);
|
|
}
|
|
|
|
if (!client_config.vendorclass)
|
|
client_config.vendorclass = alloc_dhcp_option(DHCP_VENDOR, "udhcp "BB_VER, 0);
|
|
|
|
/* setup the signal pipe */
|
|
udhcp_sp_setup();
|
|
|
|
state = INIT_SELECTING;
|
|
udhcp_run_script(NULL, "deconfig");
|
|
change_listen_mode(LISTEN_RAW);
|
|
|
|
/* Main event loop. select() waits on signal pipe and possibly
|
|
* on sockfd.
|
|
* "continue" statements in code below jump to the top of the loop.
|
|
*/
|
|
for (;;) {
|
|
tv.tv_sec = timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
if (listen_mode != LISTEN_NONE && sockfd < 0) {
|
|
if (listen_mode == LISTEN_KERNEL)
|
|
sockfd = listen_socket(/*INADDR_ANY,*/ CLIENT_PORT, client_config.interface);
|
|
else
|
|
sockfd = raw_socket(client_config.ifindex);
|
|
}
|
|
max_fd = udhcp_sp_fd_set(&rfds, sockfd);
|
|
|
|
retval = 0; /* If we already timed out, fall through, else... */
|
|
if (tv.tv_sec > 0) {
|
|
DEBUG("Waiting on select...");
|
|
retval = select(max_fd + 1, &rfds, NULL, NULL, &tv);
|
|
}
|
|
|
|
if (retval < 0) {
|
|
/* EINTR? signal was caught, don't panic */
|
|
if (errno != EINTR) {
|
|
/* Else: an error occured, panic! */
|
|
bb_perror_msg_and_die("select");
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* If timeout dropped to zero, time to become active:
|
|
* resend discover/renew/whatever
|
|
*/
|
|
if (retval == 0) {
|
|
switch (state) {
|
|
case INIT_SELECTING:
|
|
if (packet_num < discover_retries) {
|
|
if (packet_num == 0)
|
|
xid = random_xid();
|
|
|
|
/* send discover packet */
|
|
send_discover(xid, requested_ip); /* broadcast */
|
|
|
|
timeout = discover_timeout;
|
|
packet_num++;
|
|
continue;
|
|
}
|
|
udhcp_run_script(NULL, "leasefail");
|
|
if (client_config.background_if_no_lease) {
|
|
bb_info_msg("No lease, forking to background");
|
|
client_background();
|
|
} else if (client_config.abort_if_no_lease) {
|
|
bb_info_msg("No lease, failing");
|
|
retval = 1;
|
|
goto ret;
|
|
}
|
|
/* wait to try again */
|
|
timeout = tryagain_timeout;
|
|
packet_num = 0;
|
|
continue;
|
|
case RENEW_REQUESTED:
|
|
case REQUESTING:
|
|
if (packet_num < discover_retries) {
|
|
/* send request packet */
|
|
if (state == RENEW_REQUESTED)
|
|
send_renew(xid, server_addr, requested_ip); /* unicast */
|
|
else send_selecting(xid, server_addr, requested_ip); /* broadcast */
|
|
|
|
timeout = ((packet_num == 2) ? 10 : 2);
|
|
packet_num++;
|
|
continue;
|
|
}
|
|
/* timed out, go back to init state */
|
|
if (state == RENEW_REQUESTED)
|
|
udhcp_run_script(NULL, "deconfig");
|
|
change_listen_mode(LISTEN_RAW);
|
|
state = INIT_SELECTING;
|
|
timeout = 0;
|
|
packet_num = 0;
|
|
continue;
|
|
case BOUND:
|
|
/* Lease is starting to run out, time to enter renewing state */
|
|
change_listen_mode(LISTEN_KERNEL);
|
|
DEBUG("Entering renew state");
|
|
state = RENEWING;
|
|
/* fall right through */
|
|
case RENEWING:
|
|
/* Either set a new T1, or enter REBINDING state */
|
|
if ((t2 - t1) > (lease_seconds / (4*60*60) + 1)) {
|
|
/* send a request packet */
|
|
send_renew(xid, server_addr, requested_ip); /* unicast */
|
|
t1 += (t2 - t1) / 2;
|
|
timeout = t1 - ((int)monotonic_sec() - timestamp_got_lease);
|
|
continue;
|
|
}
|
|
/* Timed out, enter rebinding state */
|
|
DEBUG("Entering rebinding state");
|
|
state = REBINDING;
|
|
timeout = (t2 - t1);
|
|
continue;
|
|
case REBINDING:
|
|
/* Lease is *really* about to run out,
|
|
* try to find DHCP server using broadcast */
|
|
if ((lease_seconds - t2) > (lease_seconds / (4*60*60) + 1)) {
|
|
/* send a request packet */
|
|
send_renew(xid, 0, requested_ip); /* broadcast */
|
|
t2 += (lease_seconds - t2) / 2;
|
|
timeout = t2 - ((int)monotonic_sec() - timestamp_got_lease);
|
|
continue;
|
|
}
|
|
/* Timed out, enter init state */
|
|
bb_info_msg("Lease lost, entering init state");
|
|
udhcp_run_script(NULL, "deconfig");
|
|
change_listen_mode(LISTEN_RAW);
|
|
state = INIT_SELECTING;
|
|
timeout = 0;
|
|
packet_num = 0;
|
|
continue;
|
|
/* case RELEASED: */
|
|
}
|
|
/* yah, I know, *you* say it would never happen */
|
|
timeout = INT_MAX;
|
|
continue; /* back to main loop */
|
|
}
|
|
|
|
/* select() didn't timeout, something did happen. */
|
|
/* Is is a packet? */
|
|
if (listen_mode != LISTEN_NONE && FD_ISSET(sockfd, &rfds)) {
|
|
/* A packet is ready, read it */
|
|
|
|
if (listen_mode == LISTEN_KERNEL)
|
|
len = udhcp_get_packet(&packet, sockfd);
|
|
else len = get_raw_packet(&packet, sockfd);
|
|
|
|
if (len == -1 && errno != EINTR) {
|
|
DEBUG("error on read, %s, reopening socket", strerror(errno));
|
|
change_listen_mode(listen_mode); /* just close and reopen */
|
|
}
|
|
if (len < 0) continue;
|
|
|
|
if (packet.xid != xid) {
|
|
DEBUG("Ignoring XID %x (our xid is %x)",
|
|
(unsigned)packet.xid, (unsigned)xid);
|
|
continue;
|
|
}
|
|
|
|
/* Ignore packets that aren't for us */
|
|
if (memcmp(packet.chaddr, client_config.arp, 6)) {
|
|
DEBUG("Packet does not have our chaddr - ignoring");
|
|
continue;
|
|
}
|
|
|
|
message = get_option(&packet, DHCP_MESSAGE_TYPE);
|
|
if (message == NULL) {
|
|
bb_error_msg("cannot get message type from packet - ignoring");
|
|
continue;
|
|
}
|
|
|
|
switch (state) {
|
|
case INIT_SELECTING:
|
|
/* Must be a DHCPOFFER to one of our xid's */
|
|
if (*message == DHCPOFFER) {
|
|
/* TODO: why we don't just fetch server's IP from IP header? */
|
|
temp = get_option(&packet, DHCP_SERVER_ID);
|
|
if (!temp) {
|
|
bb_error_msg("no server ID in message");
|
|
continue;
|
|
/* still selecting - this server looks bad */
|
|
}
|
|
/* can be misaligned, thus memcpy */
|
|
memcpy(&server_addr, temp, 4);
|
|
xid = packet.xid;
|
|
requested_ip = packet.yiaddr;
|
|
|
|
/* enter requesting state */
|
|
state = REQUESTING;
|
|
timeout = 0;
|
|
packet_num = 0;
|
|
}
|
|
continue;
|
|
case RENEW_REQUESTED:
|
|
case REQUESTING:
|
|
case RENEWING:
|
|
case REBINDING:
|
|
if (*message == DHCPACK) {
|
|
temp = get_option(&packet, DHCP_LEASE_TIME);
|
|
if (!temp) {
|
|
bb_error_msg("no lease time with ACK, using 1 hour lease");
|
|
lease_seconds = 60 * 60;
|
|
} else {
|
|
/* can be misaligned, thus memcpy */
|
|
memcpy(&lease_seconds, temp, 4);
|
|
lease_seconds = ntohl(lease_seconds);
|
|
}
|
|
#if ENABLE_FEATURE_UDHCPC_ARPING
|
|
if (opt & OPT_a) {
|
|
if (!arpping(packet.yiaddr,
|
|
(uint32_t) 0,
|
|
client_config.arp,
|
|
client_config.interface)
|
|
) {
|
|
bb_info_msg("offered address is in use "
|
|
"(got ARP reply), declining");
|
|
send_decline(xid, server_addr);
|
|
|
|
if (state != REQUESTING)
|
|
udhcp_run_script(NULL, "deconfig");
|
|
change_listen_mode(LISTEN_RAW);
|
|
state = INIT_SELECTING;
|
|
requested_ip = 0;
|
|
timeout = tryagain_timeout;
|
|
packet_num = 0;
|
|
continue; /* back to main loop */
|
|
}
|
|
}
|
|
#endif
|
|
/* enter bound state */
|
|
t1 = lease_seconds / 2;
|
|
|
|
/* little fixed point for n * .875 */
|
|
t2 = (lease_seconds * 7) >> 3;
|
|
temp_addr.s_addr = packet.yiaddr;
|
|
bb_info_msg("Lease of %s obtained, lease time %u",
|
|
inet_ntoa(temp_addr), (unsigned)lease_seconds);
|
|
timestamp_got_lease = monotonic_sec();
|
|
timeout = t1;
|
|
requested_ip = packet.yiaddr;
|
|
udhcp_run_script(&packet,
|
|
((state == RENEWING || state == REBINDING) ? "renew" : "bound"));
|
|
|
|
state = BOUND;
|
|
change_listen_mode(LISTEN_NONE);
|
|
if (client_config.quit_after_lease) {
|
|
if (client_config.release_on_quit)
|
|
perform_release();
|
|
goto ret0;
|
|
}
|
|
if (!client_config.foreground)
|
|
client_background();
|
|
|
|
continue; /* back to main loop */
|
|
}
|
|
if (*message == DHCPNAK) {
|
|
/* return to init state */
|
|
bb_info_msg("Received DHCP NAK");
|
|
udhcp_run_script(&packet, "nak");
|
|
if (state != REQUESTING)
|
|
udhcp_run_script(NULL, "deconfig");
|
|
change_listen_mode(LISTEN_RAW);
|
|
sleep(3); /* avoid excessive network traffic */
|
|
state = INIT_SELECTING;
|
|
requested_ip = 0;
|
|
timeout = 0;
|
|
packet_num = 0;
|
|
}
|
|
continue;
|
|
/* case BOUND, RELEASED: - ignore all packets */
|
|
}
|
|
continue; /* back to main loop */
|
|
}
|
|
|
|
/* select() didn't timeout, something did happen.
|
|
* But it wasn't a packet. It's a signal pipe then. */
|
|
{
|
|
int signo = udhcp_sp_read(&rfds);
|
|
switch (signo) {
|
|
case SIGUSR1:
|
|
perform_renew();
|
|
break;
|
|
case SIGUSR2:
|
|
perform_release();
|
|
break;
|
|
case SIGTERM:
|
|
bb_info_msg("Received SIGTERM");
|
|
if (client_config.release_on_quit)
|
|
perform_release();
|
|
goto ret0;
|
|
}
|
|
}
|
|
} /* for (;;) - main loop ends */
|
|
|
|
ret0:
|
|
retval = 0;
|
|
ret:
|
|
/*if (client_config.pidfile) - remove_pidfile has it's own check */
|
|
remove_pidfile(client_config.pidfile);
|
|
return retval;
|
|
}
|