summaryrefslogtreecommitdiff
path: root/noncore/todayplugins/stockticker/libstocks/lists.c
Unidiff
Diffstat (limited to 'noncore/todayplugins/stockticker/libstocks/lists.c') (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/todayplugins/stockticker/libstocks/lists.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/noncore/todayplugins/stockticker/libstocks/lists.c b/noncore/todayplugins/stockticker/libstocks/lists.c
new file mode 100644
index 0000000..1ed66b3
--- a/dev/null
+++ b/noncore/todayplugins/stockticker/libstocks/lists.c
@@ -0,0 +1,123 @@
1/* libstocks - Library to get current stock quotes from Yahoo Finance
2 *
3 * Copyright (C) 2000 Eric Laeuffer
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 */
20
21#define __LISTS_C__
22
23#include <malloc.h>
24#include <stdio.h>
25#include <string.h>
26
27#ifdef __WINDOWS__
28#include <stdlib.h>
29#endif
30
31#include "stocks.h"
32#include "lists.h"
33
34/******************************************************************************/
35/* Finds a stock in the stocks list and return the stock pointer. */
36/* *stocks points to the stocks list */
37/* *stock_to_find is the stock to find :)) */
38/******************************************************************************/
39stock *find_stock(stock *stocks, char *stock_to_find)
40{
41 char *test=NULL;
42
43 while(stocks != NULL)
44 {
45 test = strstr(stocks->Symbol, stock_to_find);
46 if(test) return(stocks);
47 stocks = stocks->NextStock;
48 }
49
50 return(0);
51}
52
53/******************************************************************************/
54/* Allocate memory for a stock structure and return the pointer of this */
55/* structure. */
56/******************************************************************************/
57stock *malloc_stock(void)
58{
59 stock *stockptr;
60
61 if((stockptr = (stock *)malloc(sizeof(stock)))==NULL)
62 {
63 fprintf(stderr,"Memory allocating error (%s line %d)\n"
64 ,__FILE__, __LINE__);
65 exit(1);
66 }
67
68 stockptr->Symbol=NULL;
69 stockptr->Name=NULL;
70 stockptr->Time=NULL;
71 stockptr->Date=NULL;
72 stockptr->CurrentPrice=0;
73 stockptr->LastPrice=0;
74 stockptr->OpenPrice=0;
75 stockptr->MinPrice=0;
76 stockptr->MaxPrice=0;
77 stockptr->Variation=0;
78 stockptr->Pourcentage=0;
79 stockptr->Volume=0;
80 stockptr->PreviousStock=0;
81 stockptr->NextStock=0;
82
83 return(stockptr);
84}
85
86/******************************************************************************/
87/* Deallocates a stock structure. */
88/* *stocks_to_free is the pointer of the structure to free */
89/******************************************************************************/
90void free_stocks(stock *stock_to_free)
91{
92 stock *next_stock;
93
94 while(stock_to_free)
95 {
96 next_stock = stock_to_free->NextStock;
97 free(stock_to_free->Symbol);
98 free(stock_to_free->Name);
99 free(stock_to_free->Time);
100 free(stock_to_free->Date);
101 free(stock_to_free);
102 stock_to_free = next_stock;
103 }
104}
105
106/******************************************************************************/
107/* Returns the next stock structure from the list. */
108/* *the_stocks points to the list. */
109/******************************************************************************/
110stock *next_stock(stock *the_stock)
111{
112 return((stock *)(the_stock->NextStock));
113}
114
115/******************************************************************************/
116/* Returns the previous stock structure from the list. */
117/* *the_stocks points to the list. */
118/******************************************************************************/
119stock *previous_stock(stock *the_stock)
120{
121 return((stock *)(the_stock->PreviousStock));
122}
123