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Make it possible for a process to switch controlling terminals.

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Via the TIOCSCTTY and TIOCNOTTY ioctls.
This commit is contained in:
Andreas Kling 2019-01-15 08:49:24 +01:00
parent 10308c6434
commit 49b63281a0
6 changed files with 31 additions and 4 deletions
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9
Userland/tst.cpp
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@ -1,4 +1,5 @@
#include <stdio.h>
#include <unistd.h>
#include <sys/ioctl.h>
int main(int argc, char** argv)
@ -7,8 +8,12 @@ int main(int argc, char** argv)
(void) argv;
struct winsize ws;
ioctl(0, TIOCGWINSZ, &ws);
printf("Terminal is %ux%u\n", ws.ws_col, ws.ws_row);
int rc = ioctl(0, TIOCGWINSZ, &ws);
if (rc < 0) {
perror("ioctl(TIOCGWINSZ)");
}
printf("TTY is %s\n", ttyname(0));
printf("Terminal size is %ux%u\n", ws.ws_col, ws.ws_row);
printf("Counting to 100000: \033[s");
for (unsigned i = 0; i <= 100000; ++i) {