FreeCalypso > hg > freecalypso-tools
view miscutil/fc-pulse-rts.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | 5b8287c655cf |
children |
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/* * This utility opens a serial port, asserts RTS for 50 ms, then negates it * and exits. It is intended for use with FreeCalypso DUART28C adapters. */ #include <sys/types.h> #include <sys/file.h> #include <sys/ioctl.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> main(argc, argv) char **argv; { int target_fd; int mctl_arg = TIOCM_RTS; if (argc != 2) { fprintf(stderr, "usage: %s ttyname\n", argv[0]); exit(1); } target_fd = open(argv[1], O_RDWR|O_NONBLOCK); if (target_fd < 0) { perror(argv[1]); exit(1); } ioctl(target_fd, TIOCMBIS, &mctl_arg); usleep(50000); ioctl(target_fd, TIOCMBIC, &mctl_arg); exit(0); }