From bee8b42029900ca034675c54d98813a61ca4407a Mon Sep 17 00:00:00 2001 From: Michael Pavone Date: Sun, 26 Jul 2015 01:11:04 -0700 Subject: Spawn a terminal for the debugger when needed if we are not already attached to one --- termhelper.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 termhelper.c (limited to 'termhelper.c') diff --git a/termhelper.c b/termhelper.c new file mode 100644 index 0000000..a5cf17c --- /dev/null +++ b/termhelper.c @@ -0,0 +1,44 @@ +#include +#include +#include +#include +#include +#include "terminal.h" + +char buf[4096]; + +void copy_data(int to, int from) +{ + ssize_t bytes = read(from, buf, sizeof(buf)); + while (bytes > 0) + { + ssize_t written = write(to, buf, bytes); + if (written == -1) { + exit(1); + } + bytes -= written; + } +} + +int main(int argc, char **argv) +{ + //these will block so order is important + int input_fd = open(INPUT_PATH, O_WRONLY); + int output_fd = open(OUTPUT_PATH, O_RDONLY); + fd_set read_fds; + FD_ZERO(&read_fds); + for (;;) + { + FD_SET(STDIN_FILENO, &read_fds); + FD_SET(output_fd, &read_fds); + select(output_fd+1, &read_fds, NULL, NULL, NULL); + + if (FD_ISSET(STDIN_FILENO, &read_fds)) { + copy_data(input_fd, STDIN_FILENO); + } + if (FD_ISSET(output_fd, &read_fds)) { + copy_data(STDOUT_FILENO, output_fd); + } + } + return 0; +} -- cgit v1.2.3