jsqr-global.js « src - coinosv3.git - coinos v3 — bitcoin, Ark, Lightning and nostr wallet (web + Android)

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// Standalone bundle for the QR decoder, emitted as a separate dist/jsqr.js and
// loaded on demand by scan.js — only when a browser lacks the native
// BarcodeDetector API and the user actually opens the scanner. Keeps jsQR
// (~130 KB) out of the main single-file bundle and off the initial load.
import jsQR from 'jsqr';

window.jsQR = jsQR;

ric.Emph */ .highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */ .highlight .gr { color: #A00 } /* Generic.Error */ .highlight .gh { color: #333 } /* Generic.Heading */ .highlight .gi { color: #000; background-color: #DFD } /* Generic.Inserted */ .highlight .go { color: #888 } /* Generic.Output */ .highlight .gp { color: #555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666 } /* Generic.Subheading */ .highlight .gt { color: #A00 } /* Generic.Traceback */ .highlight .kc { color: #080; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #080; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #080; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #080 } /* Keyword.Pseudo */ .highlight .kr { color: #080; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #00D; font-weight: bold } /* Literal.Number */ .highlight .s { color: #D20; background-color: #FFF0F0 } /* Literal.String */ .highlight .na { color: #369 } /* Name.Attribute */ .highlight .nb { color: #038 } /* Name.Builtin */ .highlight .nc { color: #B06; font-weight: bold } /* Name.Class */ .highlight .no { color: #036; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555 } /* Name.Decorator */ .highlight .ne { color: #B06; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #06B; font-weight: bold } /* Name.Function */ .highlight .nl { color: #369; font-style: italic } /* Name.Label */ .highlight .nn { color: #B06; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #369; font-weight: bold } /* Name.Property */ .highlight .nt { color: #B06; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #369 } /* Name.Variable */ .highlight .ow { color: #080 } /* Operator.Word */ .highlight .w { color: #BBB } /* Text.Whitespace */ .highlight .mb { color: #00D; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #00D; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #00D; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #00D; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #00D; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #D20; background-color: #FFF0F0 } /* Literal.String.Affix */ .highlight .sb { color: #D20; background-color: #FFF0F0 } /* Literal.String.Backtick */ .highlight .sc { color: #D20; background-color: #FFF0F0 } /* Literal.String.Char */ .highlight .dl { color: #D20; background-color: #FFF0F0 } /* Literal.String.Delimiter */ .highlight .sd { color: #D20; background-color: #FFF0F0 } /* Literal.String.Doc */ .highlight .s2 { color: #D20; background-color: #FFF0F0 } /* Literal.String.Double */ .highlight .se { color: #04D; background-color: #FFF0F0 } /* Literal.String.Escape */ .highlight .sh { color: #D20; background-color: #FFF0F0 } /* Literal.String.Heredoc */ .highlight .si { color: #33B; background-color: #FFF0F0 } /* Literal.String.Interpol */ .highlight .sx { color: #2B2; background-color: #F0FFF0 } /* Literal.String.Other */ .highlight .sr { color: #080; background-color: #FFF0FF } /* Literal.String.Regex */ .highlight .s1 { color: #D20; background-color: #FFF0F0 } /* Literal.String.Single */ .highlight .ss { color: #A60; background-color: #FFF0F0 } /* Literal.String.Symbol */ .highlight .bp { color: #038 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #06B; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #369 } /* Name.Variable.Class */ .highlight .vg { color: #D70 } /* Name.Variable.Global */ .highlight .vi { color: #33B } /* Name.Variable.Instance */ .highlight .vm { color: #369 } /* Name.Variable.Magic */ .highlight .il { color: #00D; font-weight: bold } /* Literal.Number.Integer.Long */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>

#define SOCKET_PATH "/sockets/ctrl"
#define BUFFER_SIZE 262144

void handle_client(const char *result_socket, const char *command);

int main() {
  int server_fd, client_fd;
  struct sockaddr_un server_addr;
  char buffer[BUFFER_SIZE];

  unlink(SOCKET_PATH);

  server_fd = socket(AF_UNIX, SOCK_STREAM, 0);
  if (server_fd == -1) {
    perror("socket failed");
    exit(EXIT_FAILURE);
  }

  memset(&server_addr, 0, sizeof(struct sockaddr_un));
  server_addr.sun_family = AF_UNIX;
  strncpy(server_addr.sun_path, SOCKET_PATH, sizeof(server_addr.sun_path) - 1);

  if (bind(server_fd, (struct sockaddr *)&server_addr,
           sizeof(struct sockaddr_un)) == -1) {
    perror("bind failed");
    close(server_fd);
    exit(EXIT_FAILURE);
  }

  if (listen(server_fd, 5) == -1) {
    perror("listen failed");
    close(server_fd);
    exit(EXIT_FAILURE);
  }

  printf("Server listening on %s\n", SOCKET_PATH);

  while (1) {

    client_fd = accept(server_fd, NULL, NULL);
    if (client_fd == -1) {
      perror("accept failed");
      continue;
    }

    memset(buffer, 0, BUFFER_SIZE);
    ssize_t num_bytes = read(client_fd, buffer, BUFFER_SIZE - 1);
    if (num_bytes > 0) {

      buffer[num_bytes] = '\0';

      printf("Received: %s\n", buffer);

      char result_socket[BUFFER_SIZE], command[BUFFER_SIZE];
      if (sscanf(buffer, "%s %[^\n]", result_socket, command) == 2) {
        printf("Result socket: %s\n", result_socket);
        printf("Command: %s\n", command);

        handle_client(result_socket, command);
      } else {
        fprintf(stderr, "Invalid input format\n");
      }
    }

    close(client_fd);
  }

  close(server_fd);
  unlink(SOCKET_PATH);
  return 0;
}

void handle_client(const char *result_socket, const char *command) {
  pid_t pid = fork();

  if (pid == 0) {

    int result_fd = socket(AF_UNIX, SOCK_STREAM, 0);
    if (result_fd == -1) {
      perror("result socket failed");
      exit(EXIT_FAILURE);
    }

    struct sockaddr_un result_addr;
    memset(&result_addr, 0, sizeof(struct sockaddr_un));
    result_addr.sun_family = AF_UNIX;
    strncpy(result_addr.sun_path, result_socket,
            sizeof(result_addr.sun_path) - 1);

    if (connect(result_fd, (struct sockaddr *)&result_addr,
                sizeof(struct sockaddr_un)) == -1) {
      perror("connect to result socket failed");
      close(result_fd);
      exit(EXIT_FAILURE);
    }

    FILE *cmd_output = popen(command, "r");
    if (cmd_output == NULL) {
      perror("popen failed");
      close(result_fd);
      exit(EXIT_FAILURE);
    }

    char output_buffer[BUFFER_SIZE];
    while (fgets(output_buffer, sizeof(output_buffer), cmd_output) != NULL) {
      write(result_fd, output_buffer, strlen(output_buffer));
    }

    pclose(cmd_output);
    shutdown(result_fd, SHUT_WR);
    close(result_fd);
    unlink(result_socket);
    exit(0);
  } else if (pid < 0) {
    perror("fork failed");
  }
}