mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-10-27 12:48:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

kernel: implement FIONREAD for ttys

Browse Source
This commit is contained in:
monkuous
2025-11-15 23:18:10 +01:00
parent 438ef959fe
commit de3f907f25
1 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel-src/io/tty.c
+7
View File
@@ -385,6 +385,13 @@ int tty_ioctl(tty_t *tty, unsigned long req, void *arg, int *result, cred_t *cre
size_t len = min(strlen(tty->name) + 1, TTY_NAME_MAX);
return USERCOPY_POSSIBLY_TO_USER(arg, tty->name, len);
}
case FIONREAD: {
MUTEX_ACQUIRE(&tty->readmutex);
int count = RINGBUFFER_DATACOUNT(&tty->readbuffer);
MUTEX_RELEASE(&tty->readmutex);
int status = USERCOPY_POSSIBLY_TO_USER(arg, &count, sizeof(count));
return status;
}
default:
return ENOTTY;
}