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70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
/*
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* Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @{
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*
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* @file pkt.c
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*/
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#include "pkt.h"
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pktsize_t pkt_hlist_len(pkt_hlist_t *list)
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{
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pktsize_t len = 0;
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while (list) {
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len += list->header_len;
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pkt_hlist_advance(&list);
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}
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return len;
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}
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pkt_hlist_t *pkt_hlist_remove_first(pkt_hlist_t **list)
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{
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pkt_hlist_t *res;
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if (list == NULL || *list == NULL) {
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return NULL;
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}
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res = *list;
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*list = res->next;
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res->next = NULL;
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return res;
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}
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void pkt_hlist_remove(pkt_hlist_t **list, pkt_hlist_t *header)
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{
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if (list == NULL || *list == NULL || header == NULL) {
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return;
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}
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if ((*list) == header) {
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pkt_hlist_remove_first(list);
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}
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else {
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pkt_hlist_t *ptr = (*list)->next, *prev = *list;
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while (ptr != NULL) {
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if (ptr == header) {
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prev->next = ptr->next;
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ptr->next = NULL;
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}
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pkt_hlist_advance(&ptr);
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pkt_hlist_advance(&prev);
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}
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}
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}
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/** @} */
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