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login_tty — ???????????󥻥å??????? tty ????

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System Utilities Library (libutil, -lutil)

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<libutil.h> int login_tty(int fd)

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?ؿ? login_tty() ?ϡ????????????󥻥å???????ü???????????ޤ??? login_tty() ???Ϥ??줿?ե??????ؼ??? fd ??ü???ǥХ??????ǡ??ɤ߹??ߤ??񤭹??ߤ???ǽ?Ǥ???ɬ?פ??????ޤ??? setsid(2) ?ˤ??꿷?????å????󤬳??????Ƥ??줿?塢 ?ƤӽФ??ץ????????????ǥХ????????????ޤ???????ü???ǥХ????Ϲ??ˡ? ?ƤӽФ??ץ??????Ǥ?ɸ?????Ϥ????ϡ??ڤ?ɸ?२?顼???Ϥˤʤ??ޤ???

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Login_tty() ?ϡ??ƤӽФ??ץ????????????ǥХ??? fd ?????Ȥ??Ƥ????ǥХ??????????Ǥ??ʤ????硢 -1 ???֤????????Ǥʤ??????? 0 ???֤??ޤ???

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dup2(2), ioctl(2), setsid(2), tty(4)