63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <errno.h>
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#include <tabby/link.h>
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#include <tabby/printer.h>
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static void usage(int argc, char **argv, char *message, ...) {
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if (message) {
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va_list args;
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va_start(args, message);
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vfprintf(stderr, message, args);
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fprintf(stderr, "\n");
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va_end(args);
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}
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fprintf(stderr, "usage: %s capture device\n", argv[0]);
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exit(1);
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}
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int tabby_command_capture(int argc, char **argv) {
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tabby_printer *printer;
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tabby_printer_packet header;
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uint8_t body[TABBY_PRINTER_PACKET_MAX_SIZE];
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if (argc != 3) {
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usage(argc, argv, "No device specified");
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}
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if ((printer = tabby_printer_open(argv[1])) == NULL) {
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fprintf(stderr, "%s: %s: %s: %s\n", argv[0], "tabby_printer_open()",
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argv[2], strerror(errno));
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goto error_printer_open;
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}
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while (1) {
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if (tabby_printer_packet_recv(printer, &header, &body) < 0) {
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fprintf(stderr, "%s: %s: %s\n",
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argv[0], "tabby_printer_packet_recv()", strerror(errno));
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continue;
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}
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if (header.type == 0x04) {
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write(1, &body, header.size);
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}
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}
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tabby_printer_close(printer);
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return 0;
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error_printer_open:
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return 1;
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}
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