isatty.c\unistd\src - musl - musl - an implementation of the standard library for Linux-based systems

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path: root/src/unistd/isatty.c

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#include <unistd.h>
#include <sys/ioctl.h>
#include "syscall.h"

int isatty(int fd)
{
	struct winsize wsz;
	return !__syscall(SYS_ioctl, fd, TIOCGWINSZ, &wsz);
}