grantpt

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Version: 2003-01-30 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

Sommaire

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grantpt - ¥¹¥ì¡¼¥Öµ¼»÷üËö¤Ø¤Î¥¢¥¯¥»¥¹¤òµö²Ä¤¹¤ë

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#define _XOPEN_SOURCE




#include <stdlib.h>



int grantpt(int fd);

ÀâÌÀ

grantpt() ´Ø¿ô¤Ï¡¢ fd ¤Ç»²¾È¤µ¤ì¤¿¥Þ¥¹¥¿µ¼»÷üËö¤ËÂбþ¤¹¤ë¥¹¥ì¡¼¥Öµ¼»÷üËö¥Ç¥Ð¥¤¥¹ (pty) ¤Î¥â¡¼¥É¤È½êÍ­¼Ô¤òÊѹ¹¤¹¤ë¡£ ¥¹¥ì¡¼¥Ö¤Î¥æ¡¼¥¶ID ¤Ï¸Æ¤Ó½Ð¤·¤¿¥×¥í¥»¥¹¤Î¼Â UID ¤ËÀßÄꤵ¤ì¤ë¡£ ¥°¥ë¡¼¥×ID ¤È¤·¤ÆÀßÄꤵ¤ì¤ëÃͤϵ¬Äꤵ¤ì¤Æ¤¤¤Ê¤¤ (Î㤨¤Ð tty ¤Ë¤Ê¤ë)¡£ ¥¹¥ì¡¼¥Ö¤Î¥â¡¼¥É¤Ï 0620 (crw--w----) ¤ËÀßÄꤵ¤ì¤ë¡£

SIGCHLD ¥·¥°¥Ê¥ë¤òÊ᪤¹¤ë¤¿¤á¤Ë¥·¥°¥Ê¥ë¡¦¥Ï¥ó¥É¥é¤¬ÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¤Î grantpt() ¤ÎÆ°ºî¤Ïµ¬Äꤵ¤ì¤Æ¤¤¤Ê¤¤¡£

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À®¸ù¤·¤¿¾ì¹ç¡¢ grantpt() ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¡¢-1 ¤òÊÖ¤·¡¢ errno ¤ËŬÀÚ¤ÊÃͤ¬¥»¥Ã¥È¤µ¤ì¤ë¡£

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EACCES
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EBADF
°ú¤­¿ô fd ¤¬Í­¸ú¤Ê¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¤Ç¤Ê¤¤¡£
EINVAL
°ú¤­¿ô fd ¤ÏÍ­¸ú¤À¤¬¡¢¥Þ¥¹¥¿µ¼»÷üËö¤ËÂбþ¤¹¤ë¤â¤Î¤Ç¤Ï¤Ê¤¤¡£

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POSIX.1-2001

È÷¹Í

¤³¤ì¤Ï Unix98 pty »ÅÍͤΰìÉô¤Ç¤¢¤ë¡£ pts(4) ¤ò»²¾È¤Î¤³¤È¡£ ¿¤¯¤Î¥·¥¹¥Æ¥à¤Ç¤Ï¡¢¤³¤Î´Ø¿ô¤Ï "pt_chown" ¤È¸Æ¤Ð¤ì¤ë set-user-ID ¤µ¤ì¤¿ Êä½õ¥Ð¥¤¥Ê¥ê¤òÍѤ¤¤Æ¼ÂÁõ¤µ¤ì¤Æ¤¤¤ë¡£ Linux ¤Î devpts ¤Ç¤Ï¡¢¤³¤Î¤è¤¦¤ÊÊä½õ¥Ð¥¤¥Ê¥ê¤òɬÍפȤ·¤Ê¤¤¡£

´ØÏ¢¹àÌÜ

open(2), posix_openpt(3), ptsname(3), unlockpt(3), pts(4), feature_test_macros(7), pty(7)