81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/mman.h>
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#include <arpa/inet.h>
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#include <linux/fb.h>
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#include <unistd.h>
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int fbfd, fb_width, fb_height, fb_bytes;
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uint32_t *fbdata;
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void *handle_connection(void *socket_desc) {
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int sock = *(int*)socket_desc;
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int read_size;
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char *message, client_message[25];
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message = "doug doug doug";
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write(sock, message, strlen(message));
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return 0;
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}
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int main(int argc, char *argv[]) {
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int port;
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port = argc > 1 ? atoi(argv[1]) : 0;
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if (!port)
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port = 1234;
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fbfd = open("/dev/fb0", O_RDWR);
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if (fbfd >= 0) {
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struct fb_var_screeninfo vinfo;
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ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo);
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fb_width = vinfo.xres;
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fb_height = vinfo.yres;
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fb_bytes = vinfo.bits_per_pixel / 8;
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printf("width: %i, height: %i, bpp: %i\n", fb_width, fb_height, fb_bytes);
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int fb_data_size = fb_width * fb_height * fb_bytes;
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fbdata = mmap(0, fb_data_size, PROT_READ | PROT_WRITE, MAP_SHARED, fbfd, (off_t)0);
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memset(fbdata, 0, fb_data_size); // clear the screen
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int socket_desc, client_sock, c;
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struct sockaddr_in server, client;
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socket_desc = socket(AF_INET, SOCK_STREAM, 0);
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server.sin_family = AF_INET;
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server.sin_addr.s_addr = INADDR_ANY;
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server.sin_port = htons(port);
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if (bind(socket_desc, (struct sockaddr *)&server, sizeof(server)) < 0)
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return 15;
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listen(socket_desc, 100);
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c = sizeof(struct sockaddr_in);
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pthread_t thread_id;
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while (client_sock = accept(socket_desc, (struct sockaddr *)&client, (socklen_t*)&c)) {
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pthread_create(&thread_id, NULL, handle_connection, (void*) &client_sock);
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}
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return 0;
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}
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}
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