forked from ROMEO/obsw
switched to UDP from UNIX Socket
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parent
926ef26000
commit
fe5629fa85
@ -1,28 +1,121 @@
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include <hardware/interfaces.h>
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extern const char *device_root;
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extern const char *sim_ip;
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extern int ai_family;
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int compare_string_chars(const char *c_string, const char *chars,
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size_t chars_len) {
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for (int i = 0; i < chars_len; i++) {
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if (c_string[i] == 0) {
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return 0;
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}
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if (c_string[i] != chars[i]) {
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;
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return 0;
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}
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}
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return 1;
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}
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const char *get_port_number(const char *path, size_t path_len) {
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if (compare_string_chars("uart0", path, path_len) == 1) {
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return "8100";
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}
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if (compare_string_chars("uart1", path, path_len) == 1) {
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return "8101";
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}
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return NULL;
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}
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int hw_device_open(const char *path, size_t path_len) {
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const char *port_number = get_port_number(path, path_len);
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if (port_number == NULL) {
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return -1;
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}
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// struct sockaddr_in6 sin6;
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// memset(&sin6, 0, sizeof(sin6));
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// sin6.sin6_family = AF_INET6;
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// sin6.sin6_port = htons(port_number);
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// struct sockaddr_in sin4;
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// memset(&sin4, 0, sizeof(sin4));
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// sin4.sin_family = AF_INET;
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// sin4.sin_port = htons(port_number);
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// int result = inet_pton(AF_INET, sim_ip, &sin4.sin_addr);
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// int sock;
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// const struct sockaddr *addr = NULL;
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// socklen_t addrlen = 0;
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// if (result == 1) {
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// if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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// perror("hw_device_open, creating socket failed");
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// exit(-1);
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// }
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// addr = (struct sockaddr *)&sin4;
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// addrlen = sizeof(sin4);
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// }
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// result = inet_pton(AF_INET6, sim_ip, &sin6.sin6_addr);
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// if ((result == 1) && (addr == NULL)) {
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// if ((sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
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// perror("hw_device_open, creating socket failed");
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// exit(-1);
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// }
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// addr = (struct sockaddr *)&sin6;
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// addrlen = sizeof(sin6);
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// }
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struct addrinfo addrinfo_hint;
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addrinfo_hint.ai_flags = AI_ADDRCONFIG;
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addrinfo_hint.ai_family = ai_family;
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addrinfo_hint.ai_socktype = SOCK_DGRAM;
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addrinfo_hint.ai_protocol = 0;
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addrinfo_hint.ai_addrlen = 0;
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addrinfo_hint.ai_addr = NULL;
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addrinfo_hint.ai_canonname = NULL;
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addrinfo_hint.ai_next = NULL;
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int sock;
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if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
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perror(NULL);
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struct addrinfo *addr_candidates, *current_candidate;
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int result =
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getaddrinfo(sim_ip, port_number, &addrinfo_hint, &addr_candidates);
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if (result != 0) {
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fprintf(stderr, "hw_device_open, reading sim address: %s\n",
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gai_strerror(result));
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exit(-1);
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}
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struct sockaddr_un address;
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address.sun_family = AF_UNIX;
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snprintf(address.sun_path, sizeof(address.sun_path), "%s%.*s", device_root,
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path_len, path);
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if (connect(sock, (struct sockaddr *)&address, sizeof(address)) != 0) {
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perror(NULL);
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exit(-1);
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for (current_candidate = addr_candidates; current_candidate != NULL;
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current_candidate = current_candidate->ai_next) {
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sock = socket(current_candidate->ai_family, current_candidate->ai_socktype,
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current_candidate->ai_protocol);
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if (sock == -1)
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continue;
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if (connect(sock, current_candidate->ai_addr, current_candidate->ai_addrlen) != -1)
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break; /* Success */
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close(sock);
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}
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if (current_candidate == NULL) { /* No address succeeded */
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fprintf(stderr, "hw_device_open, invalid sim address\n");
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exit(EXIT_FAILURE);
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}
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return sock;
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}
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@ -4,11 +4,13 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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const char *device_root = "./";
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const char *sim_ip = "localhost";
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int ai_family = AF_UNSPEC;
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void mission(void);
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@ -25,28 +27,38 @@ int test_socket();
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// to break anything ¯\_(ツ)_/¯
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void rust_eh_personality() { puts("eh_personality"); }
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void print_usage(const char * name) {
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fprintf(stderr, "Usage: %s [-s sim_ip] [-4|6]\n", name);
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}
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int main(int argc, char **argv) {
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static struct option long_options[] = {
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/* NAME ARGUMENT FLAG SHORTNAME */
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{"device-root", required_argument, NULL, 'd'},
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{"sim_ip", required_argument, NULL, 's'},
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0}};
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int c;
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int option_index = 0;
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while ((c = getopt_long(argc, argv, "hd:", long_options, &option_index)) !=
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while ((c = getopt_long(argc, argv, "46hs:", long_options, &option_index)) !=
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-1) {
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switch (c) {
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case 'd':
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case 's':
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if (optarg != NULL) {
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device_root = optarg;
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sim_ip = optarg;
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break;
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case '4':
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ai_family = AF_INET;
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break;
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case '6':
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ai_family = AF_INET6;
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break;
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default:
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fprintf(stderr, "Usage: %s -d device-root\n", argv[0]);
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print_usage(argv[0]);
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exit(EXIT_FAILURE);
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}
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}
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}
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}
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mission();
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return 0;
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}
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@ -15,6 +15,7 @@ int _write(int fd, const char *ptr, int len) {
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if (ptr == NULL) {
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return 0;
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}
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//TODO check len
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// 0 is stdin, do not write to it
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if (fd < 1) {
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int fd1 = hw_device_open("uart1", 5);
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write(fd1, "uart1\n", 6);
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vTaskDelay(3000 / portTICK_PERIOD_MS);
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vTaskDelay(1 / portTICK_PERIOD_MS);
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uint8_t buffer[100];
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int read_bytes = read(fd0, buffer, sizeof(buffer));
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