diff options
Diffstat (limited to 'meta-networking/recipes-daemons/atftp')
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/atftp/0001-argz.h-fix-musl-compile-add-missing-defines.patch | 45 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/atftp/0002-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch | 43 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/atftp/atftpd.init (renamed from meta-networking/recipes-daemons/atftp/files/atftpd.init) | 0 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/atftp_0.8.0.bb (renamed from meta-networking/recipes-daemons/atftp/atftp_git.bb) | 34 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/files/atftp-0.7-sorcerers_apprentice.patch | 94 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/files/atftpd-0.7_circumvent_tftp_size_restrictions.patch | 163 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/atftp/files/atftpd-0.7_unprotected_assignments_crash.patch | 152 |
7 files changed, 13 insertions, 518 deletions
diff --git a/meta-networking/recipes-daemons/atftp/atftp/0001-argz.h-fix-musl-compile-add-missing-defines.patch b/meta-networking/recipes-daemons/atftp/atftp/0001-argz.h-fix-musl-compile-add-missing-defines.patch deleted file mode 100644 index cfa8a7325f..0000000000 --- a/meta-networking/recipes-daemons/atftp/atftp/0001-argz.h-fix-musl-compile-add-missing-defines.patch +++ /dev/null @@ -1,45 +0,0 @@ -From 543e67919f5cacf309ac88ab091331e41af4224b Mon Sep 17 00:00:00 2001 -From: Peter Seiderer <ps.report@gmx.net> -Date: Thu, 16 Apr 2015 22:41:57 +0200 -Subject: [PATCH] argz.h: fix musl compile (add missing defines) - -Upstream-Status: Pending - -Add __THROW, __BEGIN_DECLS, __END_DECLS and __attribute_pure__ defines. - -Signed-off-by: Peter Seiderer <ps.report@gmx.net> -Signed-off-by: Ming Liu <peter.x.liu@external.atlascopco.com> ---- - argz.h | 16 ++++++++++++++++ - 1 file changed, 16 insertions(+) - -diff --git a/argz.h b/argz.h -index 582be55..bdf9f62 100644 ---- a/argz.h -+++ b/argz.h -@@ -48,6 +48,22 @@ - # define __const const - #endif - -+#ifndef __THROW -+# define __THROW -+#endif -+ -+#ifndef __BEGIN_DECLS -+# define __BEGIN_DECLS -+#endif -+ -+#ifndef __END_DECLS -+# define __END_DECLS -+#endif -+ -+#ifndef __attribute_pure__ -+# define __attribute_pure__ -+#endif -+ - #ifndef __error_t_defined - typedef int error_t; - #endif --- -2.1.4 - diff --git a/meta-networking/recipes-daemons/atftp/atftp/0002-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch b/meta-networking/recipes-daemons/atftp/atftp/0002-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch deleted file mode 100644 index 093054ce80..0000000000 --- a/meta-networking/recipes-daemons/atftp/atftp/0002-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch +++ /dev/null @@ -1,43 +0,0 @@ -From 77e399899d9d7297d23c321811b628febdf0fd92 Mon Sep 17 00:00:00 2001 -From: Peter Seiderer <ps.report@gmx.net> -Date: Thu, 16 Apr 2015 22:43:49 +0200 -Subject: [PATCH] tftp.h/tftpd.h: fix musl compile (missing include) - -Upstream-Status: Pending - -Add sys/types.h include for u_char typedef. - -Signed-off-by: Peter Seiderer <ps.report@gmx.net> -Signed-off-by: Ming Liu <peter.x.liu@external.atlascopco.com> ---- - tftp.h | 1 + - tftpd.h | 1 + - 2 files changed, 2 insertions(+) - -diff --git a/tftp.h b/tftp.h -index 12bd6aa..32a3f63 100644 ---- a/tftp.h -+++ b/tftp.h -@@ -19,6 +19,7 @@ - - #include <sys/time.h> - #include <sys/times.h> -+#include <sys/types.h> - #include "tftp_def.h" - #include "config.h" - -diff --git a/tftpd.h b/tftpd.h -index 945065e..60d3a49 100644 ---- a/tftpd.h -+++ b/tftpd.h -@@ -20,6 +20,7 @@ - #include <pthread.h> - #include <arpa/tftp.h> - #include <arpa/inet.h> -+#include <sys/types.h> - #include "tftp_io.h" - - /* --- -2.1.4 - diff --git a/meta-networking/recipes-daemons/atftp/files/atftpd.init b/meta-networking/recipes-daemons/atftp/atftp/atftpd.init index 161d97aca7..161d97aca7 100644 --- a/meta-networking/recipes-daemons/atftp/files/atftpd.init +++ b/meta-networking/recipes-daemons/atftp/atftp/atftpd.init diff --git a/meta-networking/recipes-daemons/atftp/atftp_git.bb b/meta-networking/recipes-daemons/atftp/atftp_0.8.0.bb index a9949d59ae..507621795f 100644 --- a/meta-networking/recipes-daemons/atftp/atftp_git.bb +++ b/meta-networking/recipes-daemons/atftp/atftp_0.8.0.bb @@ -1,23 +1,15 @@ SUMMARY = "Advanced TFTP server and client" SECTION = "net" HOMEPAGE = "http://packages.debian.org/atftp" -LICENSE = "GPLv2" -LIC_FILES_CHKSUM = "file://LICENSE;md5=94d55d512a9ba36caa9b7df079bae19f" -PV = "0.7.1+git${SRCPV}" -PR = "r3" +LICENSE = "GPL-2.0-only" +LIC_FILES_CHKSUM = "file://LICENSE;md5=f65159f73e603f89d6867d43191900e5" -SRCREV = "be3291a18c069ae23a124ffdc56d64a5ff0bbec7" +SRCREV = "d5c27eb7a9695d83569767e27ef69674173db39a" -SRC_URI = "git://git.code.sf.net/p/atftp/code \ - file://atftpd-0.7_circumvent_tftp_size_restrictions.patch \ - file://atftpd-0.7_unprotected_assignments_crash.patch \ +SRC_URI = "git://git.code.sf.net/p/atftp/code;branch=master;protocol=https \ file://atftpd.init \ file://atftpd.service \ - file://atftp-0.7-sorcerers_apprentice.patch \ " -SRC_URI_append_libc-musl = " file://0001-argz.h-fix-musl-compile-add-missing-defines.patch \ - file://0002-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch \ - " S = "${WORKDIR}/git" @@ -29,13 +21,13 @@ PACKAGECONFIG[tcp-wrappers] = "--enable-libwrap,--disable-libwrap,tcp-wrappers" PACKAGECONFIG[readline] = "--enable-libreadline,--disable-libreadline,readline" INITSCRIPT_PACKAGES = "${PN}d" -INITSCRIPT_NAME_${PN}d = "atftpd" -INITSCRIPT_PARAMS_${PN}d = "defaults 80" +INITSCRIPT_NAME:${PN}d = "atftpd" +INITSCRIPT_PARAMS:${PN}d = "defaults 80" EXTRA_OEMAKE = "CFLAGS='${CFLAGS} -std=gnu89'" -do_install_append() { +do_install:append() { install -d ${D}${sysconfdir}/init.d install -m 0755 ${WORKDIR}/atftpd.init ${D}${sysconfdir}/init.d/atftpd @@ -49,16 +41,16 @@ do_install_append() { PACKAGES =+ "${PN}d" -FILES_${PN} = "${bindir}/*" +FILES:${PN} = "${bindir}/*" -FILES_${PN}d = "${sbindir}/* \ +FILES:${PN}d = "${sbindir}/* \ ${sysconfdir} \ /srv/tftp \ ${systemd_unitdir}/system/atftpd.service \ " SYSTEMD_PACKAGES = "${PN}d" -SYSTEMD_SERVICE_${PN}d = "atftpd.service" -RPROVIDES_${PN}d += "${PN}d-systemd" -RREPLACES_${PN}d += "${PN}d-systemd" -RCONFLICTS_${PN}d += "${PN}d-systemd" +SYSTEMD_SERVICE:${PN}d = "atftpd.service" +RPROVIDES:${PN}d += "${PN}d-systemd" +RREPLACES:${PN}d += "${PN}d-systemd" +RCONFLICTS:${PN}d += "${PN}d-systemd" diff --git a/meta-networking/recipes-daemons/atftp/files/atftp-0.7-sorcerers_apprentice.patch b/meta-networking/recipes-daemons/atftp/files/atftp-0.7-sorcerers_apprentice.patch deleted file mode 100644 index fc64291cd3..0000000000 --- a/meta-networking/recipes-daemons/atftp/files/atftp-0.7-sorcerers_apprentice.patch +++ /dev/null @@ -1,94 +0,0 @@ -atftp exhibits the well known "Sorcerer's Apprentice Syndrome"(SAS) problem. -According to RFC 1350, the fix to SAS is quite simple: further copies of the -acknowledgment for a particular data block would be ignored. - -Patch originally from OpenSUSE: -https://build.opensuse.org/package/view_file?file=atftp-0.7-sorcerers_apprentice.patch&package=atftp.539&project=openSUSE%3A12.1%3AUpdate&rev=84569792975e00573d7df597d2a6e895 - -Upstream-Status: Pending - -Signed-off-by: Roy.Li <rongqing.li@windriver.com> -Index: atftp-0.7/tftp_file.c -=================================================================== ---- atftp-0.7.orig/tftp_file.c 2011-11-22 15:12:53.792744083 +0100 -+++ atftp-0.7/tftp_file.c 2011-11-22 15:13:51.706421893 +0100 -@@ -605,6 +605,7 @@ - int timeout_state = state; /* what state should we go on when timeout */ - int result; - long block_number = 0; -+ long last_requested_block = -1; - long last_block = -1; - int data_size; /* size of data received */ - int sockfd = data->sockfd; /* just to simplify calls */ -@@ -765,6 +766,17 @@ - connected = 1; - } - block_number = ntohs(tftphdr->th_block); -+ -+ if (last_requested_block >= block_number) -+ { -+ if (data->trace) -+ fprintf(stderr, "received duplicated ACK <block: %ld >= %ld>\n", -+ last_requested_block, block_number); -+ break; -+ } -+ else -+ last_requested_block = block_number; -+ - if (data->trace) - fprintf(stderr, "received ACK <block: %ld>\n", - block_number); -Index: atftp-0.7/tftpd_file.c -=================================================================== ---- atftp-0.7.orig/tftpd_file.c 2011-11-22 15:12:53.793744112 +0100 -+++ atftp-0.7/tftpd_file.c 2011-11-22 15:15:04.617534260 +0100 -@@ -403,6 +403,7 @@ - int timeout_state = state; - int result; - long block_number = 0; -+ long last_requested_block = -1; - long last_block = -1; - int block_loops = 0; - int data_size; -@@ -859,6 +860,32 @@ - { - logger(LOG_DEBUG, "received ACK <block: %d>", block_number); - } -+ -+ /* check whether the block request isn't already fulfilled */ -+ -+ /* multicast, block numbers could contain gaps */ -+ if (multicast) { -+ if (last_requested_block >= block_number) -+ { -+ if (data->trace) -+ logger(LOG_DEBUG, "received duplicated ACK <block: %d >= %d>", last_requested_block, block_number); -+ break; -+ } -+ else -+ last_requested_block = block_number; -+ /* unicast, blocks should be requested one after another */ -+ } else { -+ if (last_requested_block + 1 != block_number && last_requested_block != -1) -+ { -+ if (data->trace) -+ logger(LOG_DEBUG, "received out of order ACK <block: %d != %d>", last_requested_block + 1, block_number); -+ break; -+ } -+ else -+ last_requested_block = block_number; -+ } -+ -+ - if (ntohs(tftphdr->th_block) == 65535) - { - block_loops++; -@@ -958,6 +985,8 @@ - /* nedd to send an oack to that client */ - state = S_SEND_OACK; - fseek(fp, 0, SEEK_SET); -+ /* reset the last block received counter */ -+ last_requested_block = -1; - } - else - { diff --git a/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_circumvent_tftp_size_restrictions.patch b/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_circumvent_tftp_size_restrictions.patch deleted file mode 100644 index 280b570b22..0000000000 --- a/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_circumvent_tftp_size_restrictions.patch +++ /dev/null @@ -1,163 +0,0 @@ -Fate #303031: Circumvent TFTP size restrictions in atftpd -The size of a single image file that can be transferred with TFTP is limited to -2^(2*8) *BLOCKSIZE (as per RFC 1350 there are only two bytes for the block -counter). This is problematic for one of our customers who needs to transfer -100+ MB Windows images using a TFTP client (NT bootloader) which has a -hardwared BLOCKSIZE setting of 1432). - -block rollover -http://www.compuphase.com/tftp.htm - -Patch originally from OpenSUSE: -https://build.opensuse.org/package/show?package=atftp&project=openSUSE%3A12.2 - -Upstream-Status: Pending - -Index: git/tftp_def.h -=================================================================== ---- git.orig/tftp_def.h 2012-11-19 16:28:50.221027144 -0800 -+++ git/tftp_def.h 2012-11-20 17:40:54.391206979 -0800 -@@ -32,6 +32,7 @@ - #define TIMEOUT 5 /* Client timeout */ - #define S_TIMEOUT 5 /* Server timout. */ - #define NB_OF_RETRY 5 -+#define MAXBLOCKS 1000000 /* maximum number of blocks in a download */ - - /* definition to use tftp_options structure */ - #define OPT_FILENAME 0 -Index: git/tftp_file.c -=================================================================== ---- git.orig/tftp_file.c 2012-11-19 16:28:50.221027144 -0800 -+++ git/tftp_file.c 2012-11-19 16:28:51.201027167 -0800 -@@ -622,8 +622,8 @@ - int state = S_SEND_REQ; /* current state in the state machine */ - int timeout_state = state; /* what state should we go on when timeout */ - int result; -- int block_number = 0; -- int last_block = -1; -+ long block_number = 0; -+ long last_block = -1; - int data_size; /* size of data received */ - int sockfd = data->sockfd; /* just to simplify calls */ - struct sockaddr_storage sa; /* a copy of data.sa_peer */ -@@ -637,8 +637,8 @@ - int convert = 0; /* if true, do netascii convertion */ - char string[MAXLEN]; - -- int prev_block_number = 0; /* needed to support netascii convertion */ -- int prev_file_pos = 0; -+ long prev_block_number = 0; /* needed to support netascii convertion */ -+ long prev_file_pos = 0; - int temp = 0; - - data->file_size = 0; -@@ -745,7 +745,7 @@ - data_size, data->data_buffer); - data->file_size += data_size; - if (data->trace) -- fprintf(stderr, "sent DATA <block: %d, size: %d>\n", -+ fprintf(stderr, "sent DATA <block: %ld, size: %d>\n", - block_number + 1, data_size - 4); - state = S_WAIT_PACKET; - break; -@@ -785,7 +785,7 @@ - } - block_number = ntohs(tftphdr->th_block); - if (data->trace) -- fprintf(stderr, "received ACK <block: %d>\n", -+ fprintf(stderr, "received ACK <block: %ld>\n", - block_number); - if ((last_block != -1) && (block_number > last_block)) - { -Index: git/tftp_io.c -=================================================================== ---- git.orig/tftp_io.c 2012-11-19 16:28:50.221027144 -0800 -+++ git/tftp_io.c 2012-11-19 16:28:51.201027167 -0800 -@@ -350,8 +350,8 @@ - /* - * Read from file and do netascii conversion if needed - */ --int tftp_file_read(FILE *fp, char *data_buffer, int data_buffer_size, int block_number, -- int convert, int *prev_block_number, int *prev_file_pos, int *temp) -+int tftp_file_read(FILE *fp, char *data_buffer, int data_buffer_size, long block_number, -+ int convert, long *prev_block_number, long *prev_file_pos, int *temp) - { - int i; - int c; -Index: git/tftp_io.h -=================================================================== ---- git.orig/tftp_io.h 2012-11-19 16:28:50.221027144 -0800 -+++ git/tftp_io.h 2012-11-19 16:28:51.201027167 -0800 -@@ -52,8 +52,8 @@ - int tftp_get_packet(int sock1, int sock2, int *sock, struct sockaddr_storage *sa, - struct sockaddr_storage *from, struct sockaddr_storage *to, - int timeout, int *size, char *data); --int tftp_file_read(FILE *fp, char *buffer, int buffer_size, int block_number, int convert, -- int *prev_block_number, int *prev_file_pos, int *temp); -+int tftp_file_read(FILE *fp, char *buffer, int buffer_size, long block_number, int convert, -+ long *prev_block_number, long *prev_file_pos, int *temp); - int tftp_file_write(FILE *fp, char *data_buffer, int data_buffer_size, int block_number, - int data_size, int convert, int *prev_block_number, int *temp); - #endif -Index: git/tftpd_file.c -=================================================================== ---- git.orig/tftpd_file.c 2012-11-19 16:28:50.225027144 -0800 -+++ git/tftpd_file.c 2012-11-19 16:28:51.201027167 -0800 -@@ -407,8 +407,9 @@ - int state = S_BEGIN; - int timeout_state = state; - int result; -- int block_number = 0; -- int last_block = -1; -+ long block_number = 0; -+ long last_block = -1; -+ int block_loops = 0; - int data_size; - struct sockaddr_storage *sa = &data->client_info->client; - struct sockaddr_storage from; -@@ -431,8 +432,8 @@ - struct client_info *client_old = NULL; - struct tftp_opt options[OPT_NUMBER]; - -- int prev_block_number = 0; /* needed to support netascii convertion */ -- int prev_file_pos = 0; -+ long prev_block_number = 0; /* needed to support netascii convertion */ -+ long prev_file_pos = 0; - int temp = 0; - - /* look for mode option */ -@@ -565,11 +566,12 @@ - logger(LOG_INFO, "blksize option -> %d", result); - } - -- /* Verify that the file can be sent in 2^16 block of BLKSIZE octets */ -- if ((file_stat.st_size / (data->data_buffer_size - 4)) > 65535) -+ /* Verify that the file can be sent in MAXBLOCKS blocks of BLKSIZE octets */ -+ if ((file_stat.st_size / (data->data_buffer_size - 4)) > MAXBLOCKS) - { - tftp_send_error(sockfd, sa, EUNDEF, data->data_buffer, data->data_buffer_size); -- logger(LOG_NOTICE, "Requested file to big, increase BLKSIZE"); -+ logger(LOG_NOTICE, "Requested file too big, increase BLKSIZE"); -+ logger(LOG_NOTICE, "Only %d blocks of %d bytes can be served.", MAXBLOCKS, data->data_buffer_size); - if (data->trace) - logger(LOG_DEBUG, "sent ERROR <code: %d, msg: %s>", EUNDEF, - tftp_errmsg[EUNDEF]); -@@ -880,10 +882,15 @@ - } - /* The ACK is from the current client */ - number_of_timeout = 0; -- block_number = ntohs(tftphdr->th_block); -+ block_number = (block_loops * 65536) + ntohs(tftphdr->th_block); - if (data->trace) -- logger(LOG_DEBUG, "received ACK <block: %d>", -- block_number); -+ { -+ logger(LOG_DEBUG, "received ACK <block: %d>", block_number); -+ } -+ if (ntohs(tftphdr->th_block) == 65535) -+ { -+ block_loops++; -+ }; - if ((last_block != -1) && (block_number > last_block)) - { - state = S_END; diff --git a/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_unprotected_assignments_crash.patch b/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_unprotected_assignments_crash.patch deleted file mode 100644 index 28fba6cf50..0000000000 --- a/meta-networking/recipes-daemons/atftp/files/atftpd-0.7_unprotected_assignments_crash.patch +++ /dev/null @@ -1,152 +0,0 @@ -Avoid assigning thread data outside of mutex lock - -Patch originally from OpenSUSE: -https://build.opensuse.org/package/show?package=atftp&project=openSUSE%3A12.2 - -Upstream-Status: Pending - -Index: git/tftpd_list.c -=================================================================== ---- git.orig/tftpd_list.c 2012-10-24 21:48:47.000000000 -0700 -+++ git/tftpd_list.c 2012-10-24 21:52:04.266205076 -0700 -@@ -49,11 +49,11 @@ - */ - int tftpd_list_add(struct thread_data *new) - { -- struct thread_data *current = thread_data; -+ struct thread_data *current; - int ret; - - pthread_mutex_lock(&thread_list_mutex); -- -+ current = thread_data; - number_of_thread++; - - ret = number_of_thread; -@@ -81,11 +81,13 @@ - */ - int tftpd_list_remove(struct thread_data *old) - { -- struct thread_data *current = thread_data; -+ struct thread_data *current; - int ret; - - pthread_mutex_lock(&thread_list_mutex); - -+ current = thread_data; -+ - number_of_thread--; - ret = number_of_thread; - -@@ -137,23 +139,26 @@ - struct thread_data *data, - struct client_info *client) - { -- struct thread_data *current = thread_data; /* head of the list */ -- struct tftp_opt *tftp_options = data->tftp_options; -+ struct thread_data *current; /* head of the list */ -+ struct tftp_opt *tftp_options; - struct client_info *tmp; - char options[MAXLEN]; - char string[MAXLEN]; - char *index; - int len; - -+ /* lock the whole list before walking it */ -+ pthread_mutex_lock(&thread_list_mutex); -+ - *thread = NULL; - -+ current = thread_data; -+ tftp_options = data->tftp_options; -+ - opt_request_to_string(tftp_options, options, MAXLEN); - index = strstr(options, "multicast"); - len = (int)index - (int)options; - -- /* lock the whole list before walking it */ -- pthread_mutex_lock(&thread_list_mutex); -- - while (current) - { - if (current != data) -@@ -214,9 +219,10 @@ - void tftpd_clientlist_remove(struct thread_data *thread, - struct client_info *client) - { -- struct client_info *tmp = thread->client_info; -+ struct client_info *tmp; - - pthread_mutex_lock(&thread->client_mutex); -+ tmp = thread->client_info; - while ((tmp->next != client) && (tmp->next != NULL)) - tmp = tmp->next; - if (tmp->next == NULL) -@@ -231,9 +237,11 @@ - void tftpd_clientlist_free(struct thread_data *thread) - { - struct client_info *tmp; -- struct client_info *head = thread->client_info; -+ struct client_info *head; - - pthread_mutex_lock(&thread->client_mutex); -+ head = thread->client_info; -+ - while (head) - { - tmp = head; -@@ -250,9 +258,10 @@ - struct client_info *client, - struct sockaddr_storage *sock) - { -- struct client_info *head = thread->client_info; -+ struct client_info *head; - - pthread_mutex_lock(&thread->client_mutex); -+ head = thread->client_info; - - if (client) - { -@@ -334,10 +343,10 @@ - - void tftpd_list_kill_threads(void) - { -- struct thread_data *current = thread_data; /* head of list */ -+ struct thread_data *current; /* head of list */ - - pthread_mutex_lock(&thread_list_mutex); -- -+ current = thread_data; - - while (current != NULL) - { -Index: git/tftpd_mcast.c -=================================================================== ---- git.orig/tftpd_mcast.c 2012-10-24 21:48:47.000000000 -0700 -+++ git/tftpd_mcast.c 2012-10-24 21:49:11.570201582 -0700 -@@ -51,9 +51,11 @@ - */ - int tftpd_mcast_get_tid(char **addr, short *port) - { -- struct tid *current = tid_list; -+ struct tid *current; - - pthread_mutex_lock(&mcast_tid_list); -+ current = tid_list; -+ - /* walk the list for a free tid */ - while (current != NULL) - { -@@ -74,9 +76,11 @@ - - int tftpd_mcast_free_tid(char *addr, short port) - { -- struct tid *current = tid_list; -+ struct tid *current; - - pthread_mutex_lock(&mcast_tid_list); -+ current = tid_list; -+ - while (current != NULL) - { - if ((current->used == 1) && (current->port == port) && |