SETREUID
Section: Linux Programmer's Manual
 (2)
Updated: 2nd August 1994
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À̸§
setreuid, seteuid - ½ÇÁ¦ ȤÀº À¯È¿ »ç¿ëÀÚ ID¸¦ ¼³Á¤ÇÑ´Ù.
 
»ç¿ë¹ý
#include <unistd.h>
int setreuid(uid_t ruid, uid_t euid);
int seteuid(uid_t euid);
 
¼³¸í
setreuid
´Â ÇöÁ¦ ÇÁ·Î¼¼½ºÀÇ ½ÇÁ¦/À¯È¿ÇÑ »ç¿ëÀÚ ID¸¦ ¼³Á¤ÇÑ´Ù. Ư±ÇÀÌ ¾ø´Â »ç¿ëÀÚ´Â À¯È¿»ç¿ëÀÚ ID
¶§¹®¿¡ ½ÇÁ¦ »ç¿ëÀÚ ID°¡ ¹Ù²ð·±Áö ¸ð¸¥´Ù. 
¸®´ª½º 1.1.38ÀÌÀü¿¡¼, ÀúÀåµÈ IDÆÐ·¯´ÙÀÓÀÌ
setreuid 
³ª
seteuid
À» »ç¿ëÇÒ¶§´Â µ¿ÀÛÇÏÁö ¾Ê¾Ò´Ù.
1.1.38Ãʱ⿡´Â ÀúÀåµÈ »ç¿ëÀÚID¿¡¼ À¯È¿ÇÑ »ç¿ëÀÚID¼³Á¤Àº °¡´ÉÇß´Ù.
¿À·ÎÁö ¼öÆÛÀ¯Àú¸¸ÀÌ ´Ù¸¥ º¯È¸¦ ¸¸µé·±Áö ¸ð¸¥´Ù.
½ÇÁ¦ ȤÀº À¯È¿ÇÑ »ç¿ëÀÚIDÀ» À§ÇØ -1°ªÀ» Á¦°øÇÏ´Â °ÍÀº ½Ã½ºÅÛÀ¸·Î ÇÏ¿©±Ý ID¸¦ ±×´ë·Î ³²±âµµ·ÏÇÑ´Ù.
ÇöÀç
seteuid(euid)
´Â 
setreuid(-1, euid)
¿Í ±â´ÉÀûÀ¸·Î °°´Ù.
½ÇÁ¦ »ç¿ëÀÚID°¡ º¯Çϰųª À¯È¿»ç¿ëÀÚID°¡ ÀÌÀüÀÇ ½ÇÁ¦ »ç¿ëÀÚID¿Í ´Ù¸£°Ô ¼³Á¤µÈ´Ù¸é, ÀúÀåµÈ »ç¿ëÀÚID´Â 
»õ·Î¿î À¯È¿»ç¿ëÀÚID·Î ¼³Á¤µÉ °ÍÀÌ´Ù.
 
¹Ýȯ°ª
¼º°ø½Ã, 0ÀÌ ¹ÝȯµÈ´Ù. ½ÇÆÐ½Ã, -1ÀÌ ¹ÝȯµÇ°í, 
errno
´Â ÀûÀýÇÏ°Ô ¼³Á¤µÈ´Ù.
 
¿¡·¯
- EPERM
- 
ÇöÀç ÇÁ·Î¼¼½º´Â ¼öÆÛÀ¯Àú°¡ ¾Æ´Ï°í, (i)½ÇÁ¦ »ç¿ëÀÚID¸¦ °¡Áø À¯È¿»ç¿ëÀÚID¸¦ ½º¿ÍÇÎÇϰųª (i)
´Ù¸¥°ÍÀÇ °ªÀ¸·Î Çϳª¸¦ ¼³Á¤Çϰųª (iii)ÀúÀåµÈ »ç¿ëÀÚIDÀ¸ °ªÀ¸·Î À¯È¿»ç¿ëÀÚID¸¦ ¼³Á¤Çϴ°ÍÀ» 
ÁöÁ¤ÇÑ°Í º¸´Ù ´Ù¸¥°ÍÀÌ º¯ÇÑ´Ù.
ȣȯ
BSD 4.3 (the
setreuid
ÇÔ¼öÈ£ÃâÀº 4.2BSD¿¡¼ óÀ½ ¼±º¸¿´´Ù.)
 
°ü·Ã Ç׸ñ
getuid(2),
setuid(2)
 
¿ªÀÚ
ASPLINUX<man@asp-linux.co.kr>, 2000³â 7¿ù 26
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