11 lines
197 B
C
11 lines
197 B
C
#include <unistd.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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int isatty(int fd) {
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int dtype = ioctl(fd, IOCTLDTYPE, NULL);
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if (dtype == IOCTL_DTYPE_TTY) return 1;
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errno = EINVAL;
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return 0;
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}
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