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adamdunkels74834072003-08-09 13:24:36 +00001/*
2 * Copyright (c) 2001, Adam Dunkels.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
adamdunkelsfb24dff2004-09-12 14:07:30 +000013 * 3. The name of the author may not be used to endorse or promote
adamdunkels74834072003-08-09 13:24:36 +000014 * products derived from this software without specific prior
15 * written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * This file is part of the uIP TCP/IP stack.
30 *
adamdunkelsfb24dff2004-09-12 14:07:30 +000031 * $Id: httpd-cgi.c,v 1.2 2004/09/12 14:07:31 adamdunkels Exp $
adamdunkels74834072003-08-09 13:24:36 +000032 *
33 */
34
35/*
36 * This file includes functions that are called by the web server
37 * scripts. The functions takes no argument, and the return value is
38 * interpreted as follows. A zero means that the function did not
39 * complete and should be invoked for the next packet as well. A
40 * non-zero value indicates that the function has completed and that
41 * the web server should move along to the next script line.
42 *
43 */
44
45#include "uip.h"
46#include "httpd.h"
47#include "httpd-cgi.h"
48#include "httpd-fs.h"
49
50#include "petsciiconv.h"
51
52#ifdef __CBM__
53#include <cbm.h>
54#include <c64.h>
55#endif /* __CBM__ */
56
57#include <stdio.h>
58#include <string.h>
59
60static u8_t file_stats(void);
61static u8_t tcp_stats(void);
62static u8_t processes(void);
63
64static u8_t d64output(void);
65static u8_t diroutput(void);
66
67httpd_cgifunction httpd_cgitab[] = {
68 NULL,
69 tcp_stats, /* CGI function "b" */
70 processes, /* CGI function "c" */
71
72 d64output, /* CGI function "d" */
73};
74
75static const char closed[] = /* "CLOSED",*/
76{0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0};
77static const char syn_rcvd[] = /* "SYN-RCVD",*/
78{0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56,
79 0x44, 0};
80static const char syn_sent[] = /* "SYN-SENT",*/
81{0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e,
82 0x54, 0};
83static const char established[] = /* "ESTABLISHED",*/
84{0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, 0x53, 0x48,
85 0x45, 0x44, 0};
86static const char fin_wait_1[] = /* "FIN-WAIT-1",*/
87{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
88 0x54, 0x2d, 0x31, 0};
89static const char fin_wait_2[] = /* "FIN-WAIT-2",*/
90{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
91 0x54, 0x2d, 0x32, 0};
92static const char closing[] = /* "CLOSING",*/
93{0x43, 0x4c, 0x4f, 0x53, 0x49,
94 0x4e, 0x47, 0};
95static const char time_wait[] = /* "TIME-WAIT,"*/
96{0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41,
97 0x49, 0x54, 0};
98static const char last_ack[] = /* "LAST-ACK"*/
99{0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43,
100 0x4b, 0};
101
102static const char *states[] = {
103 closed,
104 syn_rcvd,
105 syn_sent,
106 established,
107 fin_wait_1,
108 fin_wait_2,
109 closing,
110 time_wait,
111 last_ack};
112
113
114/*-----------------------------------------------------------------------------------*/
115#if 0
116static u8_t
117file_stats(void)
118{
119 /* We use sprintf() to print the number of file accesses to a
120 particular file (given as an argument to the function in the
121 script). We then use uip_send() to actually send the data. */
122 if(uip_acked()) {
123 return 1;
124 }
125 uip_send(uip_appdata, sprintf((char *)uip_appdata, "%5u", httpd_fs_count(&hs->script[4])));
126 return 0;
127}
128#endif /* 0 */
129/*-----------------------------------------------------------------------------------*/
130static u8_t
131tcp_stats(void)
132{
133 register struct uip_conn *conn;
134
135 if(uip_acked()) {
136 /* If the previously sent data has been acknowledged, we move
137 forward one connection. */
138 if(++hs->count == UIP_CONNS) {
139 /* If all connections has been printed out, we are done and
140 return 1. */
141 return 1;
142 }
143 }
144
145 conn = &uip_conns[hs->count];
146 while((conn->tcpstateflags & TS_MASK) == CLOSED) {
147 if(++hs->count == UIP_CONNS) {
148 /* If all connections has been printed out, we are done and
149 return 1. */
150 return 1;
151 }
152 conn = &uip_conns[hs->count];
153 }
154
155 uip_send(uip_appdata, sprintf((char *)uip_appdata,
156 "<tr><td>%d</td><td>%u.%u.%u.%u:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n",
157 htons(conn->lport),
158 htons(conn->ripaddr[0]) >> 8,
159 htons(conn->ripaddr[0]) & 0xff,
160 htons(conn->ripaddr[1]) >> 8,
161 htons(conn->ripaddr[1]) & 0xff,
162 htons(conn->rport),
163 states[conn->tcpstateflags & TS_MASK],
164 conn->nrtx,
165 conn->timer,
166 (uip_outstanding(conn))? '*':' ',
167 (uip_stopped(conn))? '!':' '));
168
169 return 0;
170}
171/*-----------------------------------------------------------------------------------*/
172static u8_t
173processes(void)
174{
175 u8_t i;
176 register struct dispatcher_proc *p;
177 char name[40];
178
179 p = DISPATCHER_PROCS();
180 for(i = 0; i < hs->count; ++i) {
181 if(p != NULL) {
182 p = p->next;
183 }
184 }
185
186 if(uip_acked()) {
187 /* If the previously sent data has been acknowledged, we move
188 forward one connection. */
189 ++hs->count;
190 if(p != NULL) {
191 p = p->next;
192 }
193 if(p == NULL) {
194 /* If all processes have been printed out, we are done and
195 return 1. */
196 return 1;
197 }
198 }
199
200 strncpy(name, p->name, 40);
201 petsciiconv_toascii(name, 40);
202 uip_send(uip_appdata,
203 sprintf((char *)uip_appdata,
204 "<tr align=\"center\"><td>%3d</td><td>%s</td><td>0x%04x</td><td>0x%04x</td><td>0x%04x</td></tr>\r\n",
205 p->id, name,
206 p->idle, p->signalhandler, p->uiphandler));
207 return 0;
208}
209/*-----------------------------------------------------------------------------------*/
210struct drv_state {
211 u8_t track;
212 u8_t sect;
213};
214
215static struct drv_state ds;
216
217
218#include "c64-dio.h"
219
220static void
221read_sector(void)
222{
223 c64_dio_read_block(ds.track, ds.sect, uip_appdata);
224}
225
226static u8_t
227next_sector(void)
228{
229 ++ds.sect;
230 if(ds.track < 18) {
231 if(ds.sect == 21) {
232 ++ds.track;
233 ds.sect = 0;
234 }
235 } else if(ds.track < 25) {
236 if(ds.sect == 19) {
237 ++ds.track;
238 ds.sect = 0;
239 }
240 } else if(ds.track < 31) {
241 if(ds.sect == 18) {
242 ++ds.track;
243 ds.sect = 0;
244 }
245 } else if(ds.track < 36) {
246 if(ds.sect == 17) {
247 ++ds.track;
248 ds.sect = 0;
249 }
250 }
251
252 if(ds.track == 36) {
253 return 1;
254 }
255 return 0;
256}
257
258static u8_t
259d64output(void)
260{
261 if(hs->count == 0) {
262 ds.track = 1;
263 ds.sect = 0;
264 /* c64_dio_init(8);*/
265 }
266
267 if(uip_acked()) {
268 ++hs->count;
269 if(next_sector()) {
270 return 1;
271 }
272 }
273
274 read_sector();
275 uip_send(uip_appdata, 256);
276 return 0;
277}
278
279/*-----------------------------------------------------------------------------------*/