NULL
Section: ¸®´ª½º ÇÁ·Î±×·¡¸Ó ¸Å´º¾ó (4)
Updated: 1992³â 11¿ù 21ÀÏ
Index
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À̸§
null, zero - µ¥ÀÌÅÍ ¼Ò¸êÁ¡(sink)
¼³¸í
null³ª zero Ư¼ö ÆÄÀÏ¿¡ ¾´ µ¥ÀÌÅÍ´Â ¹ö·ÁÁø´Ù.
null Ư¼ö ÆÄÀÏ¿¡¼ ÀÐÀ¸¸é Ç×»ó EOF¸¦ ¸®ÅÏÇÏ´Â ¹Ý¸é, zero¿¡¼
ÀÐÀ¸¸é Ç×»ó \0 ¹®ÀÚ¸¦ ¸®ÅÏÇÑ´Ù.
null¿Í zero´Â ´ÙÀ½°ú °°ÀÌ ¸¸µé¾îÁø´Ù:
-
mknod -m 666 /dev/null c 1 3
mknod -m 666 /dev/zero c 1 5
chown root:mem /dev/null /dev/zero
ÁÖÀÇ
ÀÌ ÀåÄ¡°¡ ¸ðµç »ç¿ëÀÚ¿¡°Ô ¾²±â¿Í Àб⠰¡´ÉÇÏÁö ¾ÊÀ¸¸é, ¸¹Àº ÇÁ·Î±×·¥ÀÌ
ÀÌ»óÇÑ µ¿ÀÛÀ» ÇÒ °ÍÀÌ´Ù.
ÆÄÀÏ
/dev/null
/dev/zero
°ü·Ã Ç׸ñ
mknod(1), chown(1)
¿ªÀÚ
ÀÓÁ¾±Õ <hermes44@secsm.org>, 2000³â 4¿ù 21ÀÏ
Index
- À̸§
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- ¼³¸í
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- ÁÖÀÇ
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- ÆÄÀÏ
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- °ü·Ã Ç׸ñ
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- ¿ªÀÚ
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