2020-01-18 11:38:21 +03:00
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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2021-04-22 11:24:48 +03:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-01-18 11:38:21 +03:00
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*/
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2018-12-21 04:42:30 +03:00
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#include <fcntl.h>
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2019-06-07 12:49:31 +03:00
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#include <stdio.h>
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2018-12-21 04:42:30 +03:00
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#include <sys/ioctl.h>
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2019-06-07 12:49:31 +03:00
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#include <unistd.h>
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2018-12-21 04:42:30 +03:00
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static int key_fd;
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2020-08-11 00:48:37 +03:00
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static void wait_for_key()
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2018-12-21 04:42:30 +03:00
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{
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printf("\033[7m--[ more ]--\033[0m");
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fflush(stdout);
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char dummy;
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2020-12-21 02:09:48 +03:00
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[[maybe_unused]] auto rc = read(key_fd, &dummy, 1);
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2018-12-21 04:42:30 +03:00
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printf("\n");
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}
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2020-12-21 02:09:48 +03:00
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int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
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2018-12-21 04:42:30 +03:00
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{
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2020-01-13 03:27:22 +03:00
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if (pledge("stdio rpath tty", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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2020-02-08 17:50:00 +03:00
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key_fd = STDOUT_FILENO;
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2018-12-21 04:42:30 +03:00
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struct winsize ws;
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ioctl(1, TIOCGWINSZ, &ws);
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2020-01-13 03:27:22 +03:00
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if (pledge("stdio", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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2018-12-21 04:42:30 +03:00
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unsigned lines_printed = 0;
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while (!feof(stdin)) {
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char buffer[BUFSIZ];
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auto* str = fgets(buffer, sizeof(buffer), stdin);
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if (!str)
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break;
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2019-08-01 12:39:41 +03:00
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printf("%s", str);
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2018-12-21 04:42:30 +03:00
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++lines_printed;
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2019-06-07 12:49:31 +03:00
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if ((lines_printed % (ws.ws_row - 1)) == 0) {
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2018-12-21 04:42:30 +03:00
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wait_for_key();
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}
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}
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close(key_fd);
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return 0;
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}
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