56 lines
1 KiB
C++
56 lines
1 KiB
C++
#include <fcntl.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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static int key_fd;
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void wait_for_key()
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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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read(key_fd, &dummy, 1);
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printf("\n");
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}
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int main(int argc, char** argv)
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{
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(void)argc;
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(void)argv;
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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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key_fd = open(ttyname(1), O_RDONLY);
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if (key_fd < 0) {
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perror("open");
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return 1;
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}
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struct winsize ws;
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ioctl(1, TIOCGWINSZ, &ws);
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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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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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printf("%s", str);
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++lines_printed;
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if ((lines_printed % (ws.ws_row - 1)) == 0) {
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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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