1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
30 #include "curl_memory.h"
33 /* The last #include file should be: */
36 /* returns last node in linked list */
37 static struct curl_slist *slist_get_last(struct curl_slist *list)
39 struct curl_slist *item;
41 /* if caller passed us a NULL, return now */
45 /* loop through to find the last item */
54 * curl_slist_append() appends a string to the linked list. It always returns
55 * the address of the first record, so that you can use this function as an
56 * initialization function as well as an append function. If you find this
57 * bothersome, then simply create a separate _init function and call it
58 * appropriately from within the program.
60 struct curl_slist *curl_slist_append(struct curl_slist *list,
63 struct curl_slist *last;
64 struct curl_slist *new_item;
66 new_item = malloc(sizeof(struct curl_slist));
68 char *dupdata = strdup(data);
70 new_item->next = NULL;
71 new_item->data = dupdata;
82 last = slist_get_last(list);
83 last->next = new_item;
87 /* if this is the first item, then new_item *is* the list */
92 * Curl_slist_duplicate() duplicates a linked list. It always returns the
93 * address of the first record of the cloned list or NULL in case of an
94 * error (or if the input list was NULL).
96 struct curl_slist *Curl_slist_duplicate(struct curl_slist *inlist)
98 struct curl_slist *outlist = NULL;
99 struct curl_slist *tmp;
102 tmp = curl_slist_append(outlist, inlist->data);
105 curl_slist_free_all(outlist);
110 inlist = inlist->next;
115 /* be nice and clean up resources */
116 void curl_slist_free_all(struct curl_slist *list)
118 struct curl_slist *next;
119 struct curl_slist *item;