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Hello world!
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 22 Feb 2015 17:41:32 +0100
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children 5ba54fc65608
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-1:000000000000 0:4e831ec746e4
1 /*
2 Circle Pad example made by Aurelio Mannara for ctrulib
3 Please refer to https://github.com/smealum/ctrulib/blob/master/libctru/include/3ds/services/hid.h for more information
4 This code was modified for the last time on: 12/13/2014 2:20 UTC+1
5
6 This wouldn't be possible without the amazing work done by:
7 -Smealum
8 -fincs
9 -WinterMute
10 -yellows8
11 -plutoo
12 -mtheall
13 -Many others who worked on 3DS and I'm surely forgetting about
14 */
15
16 #include <3ds.h>
17 #include <arpa/inet.h>
18 #include <assert.h>
19 #include <malloc.h>
20 #include <netdb.h>
21 #include <stdio.h>
22 #include <string.h>
23 #include <sys/socket.h>
24
25 static u32 *SOC_buffer = NULL;
26
27 int create_socket(int domain, int type, struct sockaddr *addr)
28 {
29 int fd = socket(domain, type, 0);
30 if (fd < 0) {
31 printf("socket() failed.\n");
32 return -1;
33 }
34
35 if (addr) {
36 if (connect(fd, addr, sizeof(*addr)) < 0) {
37 printf("connect() failed.\n");
38 return -1;
39 }
40 }
41
42 return fd;
43 }
44
45 struct sockaddr* get_sockaddr_from_hostname(const char *hostname, int port)
46 {
47 struct hostent *server = gethostbyname(hostname);
48 if (!server) {
49 printf("gethostbyname() failed.\n");
50 return NULL;
51 }
52
53 struct sockaddr_in *addr = calloc(1, sizeof(struct sockaddr_in));
54 if (!addr) {
55 printf("calloc() failed.\n");
56 return NULL;
57 }
58
59 //memset(&addr, 0, sizeof(struct sockaddr_in));
60 addr->sin_family = AF_INET;
61 addr->sin_port = htons(port);
62 memcpy(&addr->sin_addr.s_addr, server->h_addr_list[0], server->h_length);
63
64 return (struct sockaddr*) addr;
65 }
66
67 struct sockaddr* get_sockaddr_from_ip(const char *hostname, int port)
68 {
69 struct sockaddr_in *addr = calloc(1, sizeof(struct sockaddr_in));
70 if (!addr) {
71 printf("calloc() failed.\n");
72 return NULL;
73 }
74
75 //memset(&addr, 0, sizeof(struct sockaddr_in));
76 addr->sin_family = AF_INET;
77 addr->sin_port = htons(port);
78 addr->sin_addr.s_addr = inet_addr(hostname);
79
80 return (struct sockaddr*) addr;
81 }
82
83 struct network_t {
84 int tcp_fd;
85 int udp_fd;
86 struct sockaddr *addr;
87 int addr_size;
88 };
89
90 struct network_t *networkInit(const char *hostname, int port)
91 {
92 const unsigned SOC_ALIGN = 0x1000;
93 const unsigned SOC_BUFFERSIZE = 0x100000;
94
95 SOC_buffer = (u32*)calloc(SOC_ALIGN, SOC_BUFFERSIZE);
96 if (!SOC_buffer) {
97 printf("calloc() failed.\n");
98 return NULL;
99 }
100
101 unsigned initialized = SOC_Initialize(SOC_buffer, SOC_BUFFERSIZE);
102 if (initialized) {
103 printf("SOC_Initialize() failed.\n");
104 return NULL;
105 }
106
107 //struct sockaddr *addr = get_sockaddr_from_hostname(hostname, port);
108 struct sockaddr *addr = get_sockaddr_from_ip(hostname, port);
109 if (!addr)
110 return NULL;
111
112 // TODO: IPv6
113 int domain = AF_INET;
114
115 struct network_t *n = malloc(sizeof(struct network_t));
116 //n->tcp_fd = create_socket(domain, SOCK_STREAM, addr);
117 n->udp_fd = create_socket(domain, SOCK_DGRAM, NULL);
118 n->addr = addr;
119 n->addr_size = sizeof(struct sockaddr_in);
120 return n;
121 }
122
123 int sendKeys(struct network_t *n, u32 keys)
124 {
125 const char *msg = (const char*) &keys;
126 int msglen = sizeof(keys);
127 return sendto(n->udp_fd, msg, msglen, 0, n->addr, n->addr_size);
128 }
129
130 int main(int argc, char **argv)
131 {
132 //Matrix containing the name of each key. Useful for printing when a key is pressed
133 char keysNames[32][32] = {
134 "KEY_A", "KEY_B", "KEY_SELECT", "KEY_START",
135 "KEY_DRIGHT", "KEY_DLEFT", "KEY_DUP", "KEY_DDOWN",
136 "KEY_R", "KEY_L", "KEY_X", "KEY_Y",
137 "", "", "KEY_ZL", "KEY_ZR",
138 "", "", "", "",
139 "KEY_TOUCH", "", "", "",
140 "KEY_CSTICK_RIGHT", "KEY_CSTICK_LEFT", "KEY_CSTICK_UP", "KEY_CSTICK_DOWN",
141 "KEY_CPAD_RIGHT", "KEY_CPAD_LEFT", "KEY_CPAD_UP", "KEY_CPAD_DOWN"
142 };
143
144 // Initialize services
145 gfxInitDefault();
146
147 //Initialize console on top screen. Using NULL as the second argument tells the console library to use the internal console structure as current one
148 consoleInit(GFX_TOP, NULL);
149
150 u32 old_keys = 0; //In these variables there will be information about keys detected in the previous frame
151
152 // Initialize the network
153 struct network_t *n = networkInit("192.168.0.13", 16150);
154 if (!n) {
155 printf("HORROR!");
156 fflush(stdout);
157 gfxFlushBuffers();
158 gfxSwapBuffers();
159 for(;;);
160 }
161
162 printf("\x1b[0;0HPress Start to exit.");
163 printf("\x1b[1;0HCirclePad position:");
164
165 // Main loop
166 while (aptMainLoop())
167 {
168 //Scan all the inputs. This should be done once for each frame
169 hidScanInput();
170
171 //hidKeysHeld returns information about which buttons have are held down in this frame
172 u32 keys = hidKeysHeld();
173
174 //if (keys & KEY_START) break; // break in order to return to hbmenu
175
176 //Do the keys printing only if keys have changed
177 if (keys != old_keys)
178 {
179 //Clear console
180 consoleClear();
181
182 //These two lines must be rewritten because we cleared the whole console
183 printf("\x1b[0;0HPress Start to exit.");
184 printf("\x1b[1;0HCirclePad position:");
185
186 printf("\x1b[3;0H"); //Move the cursor to the fourth row because on the third one we'll write the circle pad position
187
188 //Check if some of the keys are down, held or up
189 for (int i = 0; i < 32; i++)
190 {
191 if (keys & BIT(i)) printf("%s\n", keysNames[i]);
192 }
193
194 if (sendKeys(n, keys) < 0) {
195 perror("sendKeys");
196 printf("HORROR! sendKeys()!");
197 fflush(stdout);
198 gfxFlushBuffers();
199 gfxSwapBuffers();
200 for(;;);
201 }
202 }
203
204 //Set keys old values for the next frame
205 old_keys = keys;
206
207 circlePosition pos;
208
209 //Read the CirclePad position
210 hidCircleRead(&pos);
211
212 //Print the CirclePad position
213 printf("\x1b[2;0H%04d; %04d", pos.dx, pos.dy);
214
215 // Flush and swap framebuffers
216 gfxFlushBuffers();
217 gfxSwapBuffers();
218
219 //Wait for VBlank
220 gspWaitForVBlank();
221 }
222
223 // Exit services
224 gfxExit();
225 return 0;
226 }