 |
|
|
Home :: International :: Manuals :: Howto :: FAQ :: Man Pages :: Email Login |
GETHOSTNAME
Section: Linux Programmer's Manual (2)Updated: 22 July 1995
Index Return to Main Contents
̾Á°
gethostname, sethostname - ¥Û¥¹¥È̾¤Î¼èÆÀ¡¦ÀßÄê¤ò¤¹¤ë½ñ¼°
#include <unistd.h>
int gethostname(char *name, size_t len);
int sethostname(const char *name, size_t len);
ÀâÌÀ
¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢¸½ºß¤Î¥×¥í¥»¥Ã¥µ¤Î¥Û¥¹¥È̾¤ò¼èÆÀ¡¦Êѹ¹¤¹¤ë¤¿¤á¤Ë»È¤ï¤ì¤ë¡£ÊÖ¤êÃÍ
À®¸ù¤·¤¿¾ì¹ç 0 ¤¬Ê֤롣¼ºÇÔ¤·¤¿¾ì¹ç -1 ¤¬Ê֤ꡢ errno ¤¬¥¨¥é¡¼¤ÎÆâÍƤ˽¾¤Ã¤ÆÀßÄꤵ¤ì¤ë¡£¥¨¥é¡¼
- EINVAL
- len ¤¬Éé¤Ç¤¢¤ë¡£¤Þ¤¿¤Ï¡¢ sethostname ¤Ë¤ª¤¤¤Æ len ¤¬µöÍƤµ¤ì¤¿ºÇÂ祵¥¤¥º¤ò±Û¤¨¤Æ¤¤¤ë¡£ ¤Þ¤¿¤Ï¡¢Linux/i386 ¤Î gethostname ¤Ë¤ª¤¤¤Æ len ¤¬¼ÂºÝ¤ÎÃͤè¤ê¤â¾®¤µ¤¤ (ºÇ¸å¤Î¥±¡¼¥¹¤Ç¤Ï¡¢glib 2.1 ¤À¤È ENAMETOOLONG ¤¬ÊÖ¤µ¤ì¤ë)¡£
- EPERM
- sethostname ¤Ë¤ª¤¤¤Æ¡¢¸Æ¤Ó½Ð¤·¤¿¿Í¤¬¥¹¡¼¥Ñ¡¼¥æ¡¼¥¶¤Ç¤Ê¤¤¡£
- EFAULT
- name ¤¬ÉÔÀµ¤Ê¥¢¥É¥ì¥¹¤Ç¤¢¤ë¡£
½àµò
SVr4, 4.4BSD (¤³¤ì¤é¤Î´Ø¿ô¤Ï 4.2BSD ¤Ç½é¤á¤ÆÅо줷¤¿)¡£ ¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢POSIX.1 ¤Ç¤ÏÄêµÁ¤µ¤ì¤Æ¤¤¤Ê¤¤¤¬¡¢ ISO/IEC 9945-1:1990 ¤Ç¤Ï B.4.4.1 ¤Ç°·¤ï¤ì¤Æ¤¤¤ë¡£¥Ð¥°
SUSv2 ¤Ë¤è¤ë¤È¡¢ gethostname ¤Ï¡¢¥Û¥¹¥È̾¤¬Ä¹²á¤®¤ë¾ì¹ç¡¢ len ¥Ð¥¤¥È (NUL ʸ»ú¤Ç½ªÃ¼¤¹¤ë¤«¤É¤¦¤«¤òÌä¤ï¤Ê¤¤¡¢ÀÚ¤êµÍ¤á¤é¤ì¤¿¥Û¥¹¥È̾) ¤ò ÊÖ¤µ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ (¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ë gethostname ¤¬¤¢¤ë) Linux/Alpha ¤Ï¡¢¤³¤Î»ÅÍͤǥ³¥ó¥Ñ¥¤¥ë¤µ¤ì¤Æ¤¤¤ë¡£ ¤·¤«¤·¡¢Linux/i386 ¤Î libc ¤È glibc ¤Ç¤Ï¡¢ ¤³¤Î¾ì¹ç¤Ë¥¨¥é¡¼¤òÊÖ¤¹¤À¤±¤Ç¤¢¤ë¡£Ãí°Õ
´Ø¿ô¤ÎÀ®¸ù¤ÎÄêµÁ¤¬°Û¤Ê¤ë¤³¤È¤¬¤¢¤ë¡£ SUSv2 ¤Ç¤Ï¡¢gethostname() ¤ò ¡ÖÀÚ¤êµÍ¤á¤¿¥Û¥¹¥È̾¤òÊÖ¤¹¾ì¹ç¤â¤¢¤ë¡×¤ÈÄêµÁ¤·¤Æ¤¤¤ë¤Î¤Ç¡¢ len ¤¬Ã»¤¹¤®¤ë¤³¤È¤Ë¤è¤Ã¤Æ¥¨¥é¡¼¤òÊÖ¤¹¤³¤È¤Ï¤Ê¤¤¡£ ¤â¤Á¤í¤ó¡¢´°Á´¤Ê¥Û¥¹¥È̾¤¬¼èÆÀ¤µ¤ì¤¿¤³¤È¤ò³Îǧ¤¹¤ë¤³¤È¤â²Äǽ¤Ç¤¢¤ë¡£ ¤³¤Î¤¿¤á¤Ë¡¢SUSv2 ¤Ï¡Ö¥Û¥¹¥È̾¤Ï 255 ¥Ð¥¤¥È¤ËÀ©¸Â¤µ¤ì¤ë¡×¤³¤È¤òÊݾڤ·¤Æ¤¤¤ë¡£´ØÏ¢¹àÌÜ
getdomainname(2), setdomainname(2), uname(2)