diff options
Diffstat (limited to 'networking/udhcp')
| -rw-r--r-- | networking/udhcp/common.c | 16 | ||||
| -rw-r--r-- | networking/udhcp/dhcpc.c | 20 | ||||
| -rw-r--r-- | networking/udhcp/dhcpd.c | 33 |
3 files changed, 35 insertions, 34 deletions
diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c index 721888f..76f8bf7 100644 --- a/networking/udhcp/common.c +++ b/networking/udhcp/common.c @@ -24,16 +24,6 @@ long uptime(void) return info.uptime; } -#if ENABLE_FEATURE_PIDFILE -static const char *saved_pidfile; - -static void pidfile_delete(void) -{ - if (saved_pidfile) - remove_pidfile(saved_pidfile); -} -#endif - static void create_pidfile(const char *pidfile) { if (!pidfile) @@ -43,12 +33,6 @@ static void create_pidfile(const char *pidfile) bb_perror_msg("cannot create pidfile %s", pidfile); return; } -#if ENABLE_FEATURE_PIDFILE - /* lockf(pid_fd, F_LOCK, 0); */ - if (!saved_pidfile) - atexit(pidfile_delete); - saved_pidfile = pidfile; -#endif } void udhcp_make_pidfile(const char *pidfile) diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index 362e701..06806ec 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -116,6 +116,9 @@ static void client_background(void) #else // chdir(/) is problematic. Imagine that e.g. pidfile name is RELATIVE! what will unlink do then, eh? bb_daemonize(DAEMON_CHDIR_ROOT); + /* rewrite pidfile, as our pid is different now */ + if (client_config.pidfile) + write_pidfile(client_config.pidfile); logmode &= ~LOGMODE_STDIO; #endif client_config.foreground = 1; /* Do not fork again. */ @@ -327,7 +330,8 @@ int udhcpc_main(int argc, char **argv) client_background(); } else if (client_config.abort_if_no_lease) { bb_info_msg("No lease, failing"); - return 1; + retval = 1; + goto ret; } /* wait to try again */ packet_num = 0; @@ -483,7 +487,7 @@ int udhcpc_main(int argc, char **argv) if (client_config.quit_after_lease) { if (client_config.release_on_quit) perform_release(); - return 0; + goto ret0; } if (!client_config.foreground) client_background(); @@ -516,7 +520,7 @@ int udhcpc_main(int argc, char **argv) bb_info_msg("Received SIGTERM"); if (client_config.release_on_quit) perform_release(); - return 0; + goto ret0; } } else if (retval == -1 && errno == EINTR) { /* a signal was caught */ @@ -524,7 +528,11 @@ int udhcpc_main(int argc, char **argv) /* An error occured */ bb_perror_msg("select"); } - - } - return 0; + } /* for (;;) */ + ret0: + retval = 0; + ret: + if (client_config.pidfile) + remove_pidfile(client_config.pidfile); + return retval; } diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index d856153..9f96e8b 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -53,11 +53,11 @@ int udhcpd_main(int argc, char **argv) udhcp_make_pidfile(server_config.pidfile); option = find_option(server_config.options, DHCP_LEASE_TIME); + server_config.lease = LEASE_TIME; if (option) { memcpy(&server_config.lease, option->data + 2, 4); server_config.lease = ntohl(server_config.lease); - } else - server_config.lease = LEASE_TIME; + } /* Sanity check */ num_ips = ntohl(server_config.end) - ntohl(server_config.start) + 1; @@ -72,8 +72,10 @@ int udhcpd_main(int argc, char **argv) read_leases(server_config.lease_file); if (read_interface(server_config.interface, &server_config.ifindex, - &server_config.server, server_config.arp) < 0) - return 1; + &server_config.server, server_config.arp) < 0) { + retval = 1; + goto ret; + } /* Setup the signal pipe */ udhcp_sp_setup(); @@ -82,7 +84,8 @@ int udhcpd_main(int argc, char **argv) while (1) { /* loop until universe collapses */ if (server_socket < 0) { - server_socket = listen_socket(INADDR_ANY, SERVER_PORT, server_config.interface); + server_socket = listen_socket(INADDR_ANY, SERVER_PORT, + server_config.interface); } max_sock = udhcp_sp_fd_set(&rfds, server_socket); @@ -90,16 +93,17 @@ int udhcpd_main(int argc, char **argv) tv.tv_sec = timeout_end - time(0); tv.tv_usec = 0; } + retval = 0; if (!server_config.auto_time || tv.tv_sec > 0) { retval = select(max_sock + 1, &rfds, NULL, NULL, server_config.auto_time ? &tv : NULL); - } else retval = 0; /* If we already timed out, fall through */ - + } if (retval == 0) { write_leases(); timeout_end = time(0) + server_config.auto_time; continue; - } else if (retval < 0 && errno != EINTR) { + } + if (retval < 0 && errno != EINTR) { DEBUG("error on select"); continue; } @@ -113,7 +117,7 @@ int udhcpd_main(int argc, char **argv) continue; case SIGTERM: bb_info_msg("Received a SIGTERM"); - return 0; + goto ret0; case 0: break; /* no signal */ default: continue; /* signal or error (probably EINTR) */ } @@ -222,7 +226,8 @@ int udhcpd_main(int argc, char **argv) break; case DHCPRELEASE: DEBUG("Received RELEASE"); - if (lease) lease->expires = time(0); + if (lease) + lease->expires = time(0); break; case DHCPINFORM: DEBUG("Received INFORM"); @@ -232,6 +237,10 @@ int udhcpd_main(int argc, char **argv) bb_info_msg("Unsupported DHCP message (%02x) - ignoring", state[0]); } } - - return 0; + ret0: + retval = 0; + ret: + if (server_config.pidfile) + remove_pidfile(server_config.pidfile); + return retval; } |