(split) LDP_man-pages: release ioctl.2 [JM:00378]

[linuxjm/LDP_man-pages.git] / draft / man3 / getspnam.3

.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl) and
.\" Walter Harms (walter.harms@informatik.uni-oldenburg.de)
.\"
.\" Distributed under GPL
.\"
.\" Japanese Version Copyright (c) 2004 Yuichi SATO
.\"         all rights reserved.
.\" Translated 2004-08-20, Yuichi SATO <ysato444@yahoo.co.jp>
.\"
.TH GETSPNAM 3  2010-02-25 "GNU" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O getspnam, getspnam_r, getspent, getspent_r, setspent, endspent,
.\"O fgetspent, fgetspent_r, sgetspent, sgetspent_r, putspent,
.\"O lckpwdf, ulckpwdf \- get shadow password file entry
getspnam, getspnam_r, getspent, getspent_r, setspent, endspent,fgetspent, fgetspent_r, sgetspent, sgetspent_r, putspent, lckpwdf, ulckpwdf \- shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Î¥¨¥ó¥È¥ê¤ò¼èÆÀ¤¹¤ë
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.nf
.\"O /* General shadow password file API */
/* °ìÈÌŪ¤Ê shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë API */
.br
.B #include <shadow.h>
.sp
.BI "struct spwd *getspnam(const char *" name );
.sp
.B struct spwd *getspent(void);
.sp
.B void setspent(void);
.sp
.B void endspent(void);
.sp
.BI "struct spwd *fgetspent(FILE *" fp );
.sp
.BI "struct spwd *sgetspent(const char *" s );
.sp
.BI "int putspent(struct spwd *" p ", FILE *" fp );
.sp
.B int lckpwdf(void);
.sp
.B int ulckpwdf(void);
.sp
.\"O /* GNU extension */
/* GNU ÈǤˤª¤±¤ë³ÈÄ¥ */
.br
.B #include <shadow.h>
.sp
.BI "int getspent_r(struct spwd *" spbuf ,
.br
.BI "        char *" buf ", size_t " buflen ", struct spwd **" spbufp );
.sp
.BI "int getspnam_r(const char *" name ", struct spwd *" spbuf ,
.br
.BI "        char *" buf ", size_t " buflen ", struct spwd **" spbufp );
.sp
.BI "int fgetspent_r(FILE *" fp ", struct spwd *" spbuf ,
.br
.BI "        char *" buf ", size_t " buflen ", struct spwd **" spbufp );
.sp
.BI "int sgetspent_r(const char *" s ", struct spwd *" spbuf ,
.br
.BI "        char *" buf ", size_t " buflen ", struct spwd **" spbufp );
.fi
.sp
.in -4n
.\"O Feature Test Macro Requirements for glibc (see
.\"O .BR feature_test_macros (7)):
glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
.RB ( feature_test_macros (7)
»²¾È):
.in
.sp
.ad l
.BR getspent_r (),
.BR getspnam_r (),
.BR fgetspent_r (),
.BR sgetspent_r ():
.RS 4
_BSD_SOURCE || _SVID_SOURCE
.RE
.ad b
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O Long ago it was considered safe to have encrypted passwords openly
.\"O visible in the password file.
.\"O When computers got faster and people
.\"O got more security-conscious, this was no longer acceptable.
ÀΤϰŹ沽¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤ò¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Ë
¸«¤¨¤ë¤è¤¦¤Ë¸ø³«¤·¤Æ¤ª¤¤¤Æ¤â°ÂÁ´¤À¤È¹Í¤¨¤é¤ì¤Æ¤¤¤¿¡£
.\"O Julianne Frances Haugh implemented the shadow password suite
.\"O that keeps the encrypted passwords in
.\"O the shadow password database
.\"O (e.g., the local shadow password file
.\"O .IR /etc/shadow ,
.\"O NIS, and LDAP),
.\"O readable only by root.
Julianne Frances Haugh ¤Ï shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥¹¥¤¡¼¥È¤ò¼ÂÁõ¤·¤¿¡£
¤³¤ì¤Ï°Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤ò¡¢root ¤Î¤ß¤¬Æɤळ¤È¤¬¤Ç¤­¤ë
shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹ (Î㤨¤Ð¡¢
¥í¡¼¥«¥ë¤Î shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë
.IR /etc/shadow ,
NIS, LDAP)
¤ËÊÝ»ý¤¹¤ë¡£
.LP
.\"O The functions described below resemble those for
.\"O the traditional password database
.\"O (e.g., see
.\"O .BR getpwnam (3)
.\"O and
.\"O .BR getpwent (3)).
°Ê²¼¤ÇÀâÌÀ¤¹¤ë´Ø¿ô¤Ï¡¢ÅÁÅýŪ¤Ê¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÂФ¹¤ë
´Ø¿ô¤Ë»÷¤Æ¤¤¤ë (Î㤨¤Ð
.BR getpwnam (3)
¤ä
.BR getpwent (3)
¤ò»²¾È)¡£
.\"O .\" FIXME I've commented out the following for the
.\"O .\" moment.  The relationship between PAM and nsswitch.conf needs
.\"O .\" to be clearly documented in one place, which is pointed to by
.\"O .\" the pages for the user, group, and shadow password functions.
.\"O .\" (Jul 2005, mtk)
.\"O .\"
.\"O .\" This shadow password setup has been superseded by PAM
.\"O .\" (pluggable authentication modules), and the file
.\"O .\" .I /etc/nsswitch.conf
.\"O .\" now describes the sources to be used.
.\" FIXME °Ê²¼¤ò°ì»þŪ¤Ë¥³¥á¥ó¥È¥¢¥¦¥È¤·¤¿¡£
.\" PAM ¤È nsswitch.conf ¤Î´Ø·¸¤Ë¤Ä¤¤¤Æ¤Ï¡¢¥æ¡¼¥¶¡¢¥°¥ë¡¼¥×¡¢shadow
.\" ¥Ñ¥¹¥ï¡¼¥É¤Î´Ø¿ô¤Ë¤Ä¤¤¤Æ¤Î¥Ú¡¼¥¸¤«¤é»²¾È¤µ¤ì¤ë¤É¤³¤«¤Ë¤Ï¤Ã¤­¤ê¤È
.\" µ­ºÜ¤·¤Æ¤ª¤¯É¬Íפ¬¤¢¤ë¡£
.\" (Jul 2005, mtk)
.\"
.\" ¤³¤Î shadow ¥Ñ¥¹¥ï¡¼¥É¤ÎÀßÄê¤Ï
.\" PAM (pluggable authentication modules) ¤Ç¼è¤êÂؤ¨¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
.\" ¸½ºß¤Î¤È¤³¤í¡¢¤É¤Î¾ðÊ󸻤ò»ÈÍѤ¹¤ë¤«¤Ï
.\" .I /etc/nsswitch.conf
.\" ¥Õ¥¡¥¤¥ë¤Ëµ­½Ò¤µ¤ì¤ë¡£
.LP
.\"O The
.\"O .BR getspnam ()
.\"O function returns a pointer to a structure containing
.\"O the broken-out fields of the record in the shadow password database
.\"O that matches the username
.\"O .IR name .
.BR getspnam ()
´Ø¿ô¤Ï¡¢¥æ¡¼¥¶Ì¾
.I name
¤Ë¥Þ¥Ã¥Á¤¹¤ë shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤Î¥¨¥ó¥È¥ê¤ò
Í×ÁÇËè¤Ëʬ²ò¤·¡¢³ÆÍ×ÁǤò³ÊǼ¤·¤¿¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¤òÊÖ¤¹¡£
.LP
.\"O The
.\"O .BR getspent ()
.\"O function returns a pointer to the next entry in the shadow password
.\"O database.
.BR getspent ()
´Ø¿ô¤Ï shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤ª¤±¤ë¼¡¤Î¥¨¥ó¥È¥ê¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£
.\"O The position in the input stream is initialized by
.\"O .BR setspent ().
ÆþÎÏ¥¹¥È¥ê¡¼¥à¤Ë¤ª¤±¤ë°ÌÃ֤ϡ¢
.BR setspent ()
¤Ç½é´ü²½¤µ¤ì¤ë¡£
.\"O When done reading, the program may call
.\"O .BR endspent ()
.\"O so that resources can be deallocated.
Æɤ߹þ¤ß¤¬½ª¤ï¤Ã¤¿¸å¤Ë¡¢
.BR endspent ()
¤ò¸Æ¤Ó½Ð¤¹¤È¡¢¥ê¥½¡¼¥¹¤ò²òÊü¤Ç¤­¤ë¡£
.\"O .\" some systems require a call of setspent() before the first getspent()
.\"O .\" glibc does not
.\" ºÇ½é¤Ë getspent() ¤ò¸Æ¤Ó½Ð¤¹Á°¤Ë¡¢
.\" setspent() ¤ò¸Æ¤Ó½Ð¤µ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¥·¥¹¥Æ¥à¤â¤¢¤ë¡£
.\" glibc ¤Ç¤Ï¤½¤ÎɬÍפ¬¤Ê¤¤¡£
.LP
.\"O The
.\"O .BR fgetspent ()
.\"O function is similar to
.\"O .BR getspent ()
.\"O but uses the supplied stream instead of the one implicitly opened by
.\"O .BR setspent ().
.BR fgetspent ()
´Ø¿ô¤Ï
.BR getspent ()
¤Ë»÷¤Æ¤¤¤ë¤¬¡¢
.BR setspent ()
¤Ç°ÅÌۤΤ¦¤Á¤Ë¥ª¡¼¥×¥ó¤µ¤ì¤ë¥¹¥È¥ê¡¼¥à¤Ç¤Ï¤Ê¤¯¡¢Í¿¤¨¤é¤ì¤¿¥¹¥È¥ê¡¼¥à¤ò»È¤¦¡£
.LP
.\"O The
.\"O .BR sgetspent ()
.\"O function parses the supplied string
.\"O .I s
.\"O into a struct
.\"O .IR spwd .
.BR sgetspent ()
´Ø¿ô¤ÏÍ¿¤¨¤é¤ì¤¿Ê¸»úÎó
.I s
¤ò²òÀϤ· struct
.I spwd
¤Ë³ÊǼ¤¹¤ë¡£
.LP
.\"O The
.\"O .BR putspent ()
.\"O function writes the contents of the supplied struct
.\"O .I spwd
.\"O .I *p
.\"O as a text line in the shadow password file format to the stream
.\"O .IR fp .
.BR putspent ()
´Ø¿ô¤ÏÍ¿¤¨¤é¤ì¤¿ struct
.I spwd
.I *p
¤ÎÆâÍƤò shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë·Á¼°¤Î¥Æ¥­¥¹¥È¹Ô¤Ç¥¹¥È¥ê¡¼¥à
.I fp
¤Ë½ñ¤­½Ð¤¹¡£
.\"O String entries with value NULL and numerical entries with value \-1
.\"O are written as an empty string.
¶õʸ»úÎó¤È¤·¤Æ¡¢
Ãͤ¬ NULL ¤Îʸ»úÎ󥨥ó¥È¥ê¤ÈÃͤ¬ \-1 ¤Î¿ôÃÍ¥¨¥ó¥È¥ê¤¬
½ñ¤­½Ð¤µ¤ì¤ë¡£
.LP
.\"O The
.\"O .BR lckpwdf ()
.\"O function is intended to protect against multiple simultaneous accesses
.\"O of the shadow password database.
.\"O It tries to acquire a lock, and returns 0 on success,
.\"O or \-1 on failure (lock not obtained within 15 seconds).
.BR lckpwdf ()
´Ø¿ô¤Ï¡¢ shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò
¿½ÅƱ»þ¥¢¥¯¥»¥¹¤«¤é¼é¤ë¤¿¤á¤Î¤â¤Î¤Ç¤¢¤ë¡£
¤³¤Î´Ø¿ô¤Ï¥í¥Ã¥¯¤Î³ÍÆÀ¤ò»î¤ß¡¢
À®¸ù¤·¤¿¾ì¹ç¤Ï 0 ¤òÊÖ¤¹¡£
¼ºÇÔ¤·¤¿¾ì¹ç (15 ÉðÊÆâ¤Ë¥í¥Ã¥¯¤¬¼èÆÀ¤Ç¤­¤Ê¤«¤Ã¤¿¾ì¹ç) ¤Ï \-1 ¤òÊÖ¤¹¡£
.\"O The
.\"O .BR ulckpwdf ()
.\"O function releases the lock again.
.BR ulckpwdf ()
´Ø¿ô¤Ï¥í¥Ã¥¯¤òºÆ¤Ó²òÊü¤¹¤ë¡£
.\"O Note that there is no protection against direct access of the shadow
.\"O password file.
.\"O Only programs that use
.\"O .BR lckpwdf ()
.\"O will notice the lock.
shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Ø¤ÎľÀÜ¥¢¥¯¥»¥¹¤«¤é
Êݸ¤ë¼êÃʤ¬¤Ê¤¤ÅÀ¤ËÃí°Õ¤¹¤ë¤³¤È¡£
.BR lckpwdf ()
¤ò»È¤¦¥×¥í¥°¥é¥à¤À¤±¤¬¥í¥Ã¥¯¤òÄÌÃΤǤ­¤ë¡£
.LP
.\"O These were the functions that formed the original shadow API.
.\"O They are widely available.
.\"O .\" Also in libc5
.\"O .\" SUN doesn't have sgetspent()
¤³¤ì¤é¤Î´Ø¿ô¤Ï¥ª¥ê¥¸¥Ê¥ë¤Î shadow API ¤ò¹½À®¤·¤Æ¤¤¤¿´Ø¿ô¤Ç¤¢¤ê¡¢
¤¤¤í¤¤¤í¤Ê¥·¥¹¥Æ¥à¤Ç¹­¤¯ÍøÍѲÄǽ¤Ç¤¢¤ë¡£
.\" libc5 ¤Ç¤âÍøÍѲÄǽ¤Ç¤¢¤ë¡£
.\" SUN ¤Ë¤Ï sgetspent() ¤¬¤Ê¤¤¡£
.\"O .SS "Reentrant versions"
.SS ¥ê¥¨¥ó¥È¥é¥ó¥ÈÈÇ
.\"O Analogous to the reentrant functions for the password database, glibc
.\"O also has reentrant functions for the shadow password database.
¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÂФ¹¤ë¥ê¥¨¥ó¥È¥é¥ó¥ÈÈǤÈƱ¤¸¤è¤¦¤Ë¡¢
glibc ¤Ë¤Ï shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤ËÂФ·¤Æ¥ê¥¨¥ó¥È¥é¥ó¥ÈÈǤ¬¤¢¤ë¡£
.\"O The
.\"O .BR getspnam_r ()
.\"O function is like
.\"O .BR getspnam ()
.\"O but stores the retrieved shadow password structure in the space pointed to by
.\"O .IR spbuf .
.BR getspnam_r ()
´Ø¿ô¤Ï
.BR getspnam ()
¤È»÷¤Æ¤¤¤ë¤¬¡¢¼èÆÀ¤·¤¿ shadow ¥Ñ¥¹¥ï¡¼¥É¹½Â¤ÂΤò
.I spbuf
¤¬»Ø¤¹Îΰè¤Ë³ÊǼ¤¹¤ë¡£
.\"O This shadow password structure contains pointers to strings, and these strings
.\"O are stored in the buffer
.\"O .I buf
.\"O of size
.\"O .IR buflen .
shadow ¥Ñ¥¹¥ï¡¼¥É¹½Â¤ÂΤÏʸ»úÎ󷲤ؤΥݥ¤¥ó¥¿¤ò´Þ¤ß¡¢
¤³¤ì¤é¤Îʸ»úÎ󷲤ϥµ¥¤¥º
.I buflen
¤Î¥Ð¥Ã¥Õ¥¡
.I buf
¤Ë³ÊǼ¤µ¤ì¤ë¡£
.\"O A pointer to the result (in case of success) or NULL (in case no entry
.\"O was found or an error occurred) is stored in
.\"O .IR *spbufp .
.I *spbufp
¤Ë¤Ï (À®¸ù¤·¤¿¾ì¹ç¤Ï) ·ë²Ì¤Ø¤Î¥Ý¥¤¥ó¥¿¤¬³ÊǼ¤µ¤ì¡¢
(¥¨¥ó¥È¥ê¤¬¸«¤Ä¤«¤é¤Ê¤«¤Ã¤¿¾ì¹ç¤Þ¤¿¤Ï¥¨¥é¡¼¤¬µ¯¤³¤Ã¤¿¾ì¹ç¤Ï)
NULL ¤¬³ÊǼ¤µ¤ì¤ë¡£
.LP
.\"O The functions
.\"O .BR getspent_r (),
.\"O .BR fgetspent_r (),
.\"O and
.\"O .BR sgetspent_r ()
.\"O are similarly analogous to their nonreentrant counterparts.
´Ø¿ô
.BR getspent_r (),
.BR fgetspent_r (),
.BR sgetspent_r ()
¤Ï¤½¤ì¤¾¤ì¥ê¥¨¥ó¥È¥é¥ó¥È¤Ç¤Ê¤¤¥Ð¡¼¥¸¥ç¥ó¤ÈƱÍͤε¡Ç½¤ò»ý¤Ä¡£
.LP
.\"O Some non-glibc systems also have functions with these names,
.\"O often with different prototypes.
.\"O .\" SUN doesn't have sgetspent_r()
glibc ¤Ç¤Ê¤¤¥·¥¹¥Æ¥à¤Ë¤â¤³¤ì¤é¤ÈƱ¤¸Ì¾Á°¤Î´Ø¿ô¤¬¤¢¤ë¤¬¡¢
¥×¥í¥È¥¿¥¤¥×¤¬°Û¤Ê¤ë¤³¤È¤â¿¤¤¡£
.\" SUN ¤Ë¤Ï sgetspent_r() ¤¬¤Ê¤¤¡£
.\"O .SS Structure
.SS ¹½Â¤ÂÎ
.\"O The shadow password structure is defined in \fI<shadow.h>\fP as follows:
shadow ¥Ñ¥¹¥ï¡¼¥É¹½Â¤ÂÎ¤Ï \fI<shadow.h>\fP ¤Ç°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤Æ¤¤¤ë:
.sp
.in +4n
.nf
struct spwd {
.\"O     char *sp_namp;     /* Login name */
.\"O     char *sp_pwdp;     /* Encrypted password */
.\"O     long  sp_lstchg;   /* Date of last change (measured
.\"O                           in days since 1970-01-01 00:00:00 +0000 (UTC)) */
.\"O     long  sp_min;      /* Min # of days between changes */
.\"O     long  sp_max;      /* Max # of days between changes */
.\"O     long  sp_warn;     /* # of days before password expires
.\"O                           to warn user to change it */
.\"O     long  sp_inact;    /* # of days after password expires
.\"O                           until account is disabled */
.\"O     long  sp_expire;   /* Date when account expires (measured
.\"O                           in days since 1970-01-01 00:00:00 +0000 (UTC)) */
.\"O     unsigned long sp_flag;  /* Reserved */
    char *sp_namp;     /* ¥í¥°¥¤¥ó̾ */
    char *sp_pwdp;     /* °Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É */
    long  sp_lstchg;   /* ºÇ½ª¹¹¿·Æü
                          (1970-01-01 00:00:00 +0000 (UTC)) ¤«¤é¤ÎÆü¿ô) */
    long  sp_min;      /* Êѹ¹¤¬½ÐÍè¤ë¤è¤¦¤Ë¤Ê¤ë¤Þ¤Ç¤ÎºÇûÆü¿ô */
    long  sp_max;      /* Êѹ¹¤ò¤·¤Ê¤¯¤Æ¤â¤è¤¤ºÇĹÆü¿ô */
    long  sp_warn;     /* ¥Ñ¥¹¥ï¡¼¥É¤¬´ü¸ÂÀÚ¤ì¤Ë¤Ê¤ëÁ°¤Ë
                          ¥æ¡¼¥¶¤ËÊѹ¹¤Î·Ù¹ð¤ò½Ð¤¹Æü¿ô */
    long  sp_inact;    /* ¥Ñ¥¹¥ï¡¼¥É¤¬´ü¸ÂÀÚ¤ì¤Ë¤Ê¤Ã¤Æ¤«¤é
                          ¥¢¥«¥¦¥ó¥È¤¬Ìµ¸ú¤Ë¤Ê¤ë¤Þ¤Ç¤ÎÆü¿ô */
    long  sp_expire;   /* ¥¢¥«¥¦¥ó¥È¤¬Ìµ¸ú¤Ë¤Ê¤ëÆüÉÕ
                          (1970-01-01 00:00:00 +0000 (UTC)) ¤«¤é¤ÎÆü¿ô) */
    unsigned long sp_flag;  /* ͽÌó¥Õ¥£¡¼¥ë¥É */
};
.fi
.in
.\"O .SH "RETURN VALUE"
.SH ÊÖ¤êÃÍ
.\"O The functions that return a pointer return NULL if no more entries
.\"O are available or if an error occurs during processing.
¥Ý¥¤¥ó¥¿¤òÊÖ¤¹´Ø¿ô¤Ï¡¢¤³¤ì°Ê¾å¥¨¥ó¥È¥ê¤¬¤Ê¤¤¾ì¹ç¤ä
½èÍýÃæ¤Ë¥¨¥é¡¼¤¬È¯À¸¤·¤¿¾ì¹ç NULL ¤òÊÖ¤¹¡£
.\"O The functions which have \fIint\fP as the return value return 0 for
.\"O success and \-1 for failure.
\fIint\fP ¤òÊÖ¤êÃͤȤ·¤Æ»ý¤Ä´Ø¿ô¤Ï¡¢
À®¸ù¤·¤¿¾ì¹ç 0 ¤òÊÖ¤·¡¢¼ºÇÔ¤·¤¿¾ì¹ç \-1 ¤òÊÖ¤¹¡£
.LP
.\"O For the nonreentrant functions, the return value may point to static area,
.\"O and may be overwritten by subsequent calls to these functions.
¥ê¥¨¥ó¥È¥é¥ó¥ÈÈǤǤʤ¤´Ø¿ô¤Ç¤Ï¡¢ÊÖ¤êÃͤ¬ÀÅŪ¤ÊÎΰè¤ò»Ø¤·¤Æ¤ª¤ê¡¢
°ú¤­Â³¤¤¤Æ¤³¤ì¤é¤Î´Ø¿ô¤ò¸Æ¤Ó½Ð¤·¤¿¾ì¹ç¤Ë¾å½ñ¤­¤µ¤ì¤ë²ÄǽÀ­¤¬¤¢¤ë¡£
.LP
.\"O The reentrant functions return zero on success.
¥ê¥¨¥ó¥È¥é¥ó¥ÈÈǤδؿô¤Ï¡¢À®¸ù¤·¤¿¾ì¹ç¤Ë 0 ¤òÊÖ¤¹¡£
.\"O In case of error, an error number is returned.
¥¨¥é¡¼¤Î¾ì¹ç¤Ï¡¢¥¨¥é¡¼Èֹ椬ÊÖ¤µ¤ì¤ë¡£
.\"O .SH ERRORS
.SH ¥¨¥é¡¼
.TP
.B ERANGE
.\"O Supplied buffer is too small.
Í¿¤¨¤é¤ì¤¿¥Ð¥Ã¥Õ¥¡¤¬¾®¤µ¤¹¤®¤ë¡£
.\"O .SH FILES
.SH ¥Õ¥¡¥¤¥ë
.TP
.I /etc/shadow
.\"O local shadow password database file
¥í¡¼¥«¥ë¤Î shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¥Õ¥¡¥¤¥ë
.TP
.I /etc/.pwd.lock
.\"O lock file
¥í¥Ã¥¯¥Õ¥¡¥¤¥ë
.LP
.\"O The include file
.\"O .I <paths.h>
.\"O defines the constant
.\"O .B _PATH_SHADOW
.\"O to the pathname of the shadow password file.
¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
.I <paths.h>
¤ÏÄê¿ô
.B _PATH_SHADOW
¤òÄêµÁ¤·¤Æ¤¤¤ë¡£
¤³¤ì¤Ï shadow ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Î¥Ñ¥¹Ì¾¤Ç¤¢¤ë¡£
.\"O .SH "CONFORMING TO"
.SH ½àµò
.\"O The shadow password database and its associated API are
.\"O not specified in POSIX.1-2001.
.\"O However, many other systems provide a similar API.
shadow ¥Ñ¥¹¥ï¡¼¥É¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤È´ØÏ¢ API ¤Ï POSIX.1-2001
¤Ë¤Ïµ­ºÜ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£¤·¤«¤·¤Ê¤¬¤é¡¢Â¿¤¯¤Î¾¤Î¥·¥¹¥Æ¥à¤Ç¤â
ƱÍͤΠAPI ¤¬Ä󶡤µ¤ì¤Æ¤¤¤ë¡£
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR getgrnam (3),
.BR getpwnam (3),
.BR getpwnam_r (3),
.BR shadow (5)