diff options
Diffstat (limited to 'man/zh_CN/man3')
| -rw-r--r-- | man/zh_CN/man3/getspnam.3 | 1 | ||||
| -rw-r--r-- | man/zh_CN/man3/shadow.3 | 254 |
2 files changed, 255 insertions, 0 deletions
diff --git a/man/zh_CN/man3/getspnam.3 b/man/zh_CN/man3/getspnam.3 new file mode 100644 index 0000000..cd473da --- /dev/null +++ b/man/zh_CN/man3/getspnam.3 @@ -0,0 +1 @@ +.so man3/shadow.3 diff --git a/man/zh_CN/man3/shadow.3 b/man/zh_CN/man3/shadow.3 new file mode 100644 index 0000000..37df281 --- /dev/null +++ b/man/zh_CN/man3/shadow.3 @@ -0,0 +1,254 @@ +'\" t +.\" Title: shadow +.\" Author: Julianne Frances Haugh +.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/> +.\" Date: 2012-05-25 +.\" Manual: 库函数调用 +.\" Source: shadow-utils 4.1.5.1 +.\" Language: Chinese Simplified +.\" +.TH "SHADOW" "3" "2012-05-25" "shadow\-utils 4\&.1\&.5\&.1" "库函数调用" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "名称" +shadow, getspnam \- 加密密码文件工具函数 +.SH "SYNTAX" +.PP + +\fI#include <shadow\&.h>\fR +.PP + +\fIstruct spwd *getspent();\fR +.PP + +\fIstruct spwd *getspnam(char\fR +\fI*name\fR\fI);\fR +.PP + +\fIvoid setspent();\fR +.PP + +\fIvoid endspent();\fR +.PP + +\fIstruct spwd *fgetspent(FILE\fR +\fI*fp\fR\fI);\fR +.PP + +\fIstruct spwd *sgetspent(char\fR +\fI*cp\fR\fI);\fR +.PP + +\fIint putspent(struct spwd\fR +\fI*p,\fR +\fIFILE\fR +\fI*fp\fR\fI);\fR +.PP + +\fIint lckpwdf();\fR +.PP + +\fIint ulckpwdf();\fR +.SH "描述" +.PP +\fIshadow\fR +处理 shadow 密码文件 +/etc/shadow +的内容。\fI#include\fR +文件中的结构是： +.sp +.if n \{\ +.RS 4 +.\} +.nf +struct spwd { + char *sp_namp; /* user login name */ + char *sp_pwdp; /* encrypted password */ + long int sp_lstchg; /* last password change */ + long int sp_min; /* days until change allowed\&. */ + long int sp_max; /* days before change required */ + long int sp_warn; /* days warning for expiration */ + long int sp_inact; /* days before account inactive */ + long int sp_expire; /* date when account expires */ + unsigned long int sp_flag; /* reserved for future use */ +} + +.fi +.if n \{\ +.RE +.\} +.PP +每个字段的含义是： +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_namp \- 指向以 null 结束的用户名的指针 +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_pwdp \- 指向 null 结束的密码的指针 +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_lstchg \- 最近更改密码的日期(日期计算方法是从1970年1月1日开始的天数) +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_min \- days before which password may not be changed +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_max \- days after which password must be changed +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_warn \- days before password is to expire that user is warned of pending password expiration +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_inact \- days after password expires that account is considered inactive and disabled +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_expire \- days since Jan 1, 1970 when account will be disabled +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +sp_flag \- reserved for future use +.RE +.SH "描述" +.PP + +\fIgetspent\fR, +\fIgetspname\fR, +\fIfgetspent\fR, and +\fIsgetspent\fR +each return a pointer to a +\fIstruct spwd\fR\&. +\fIgetspent\fR +returns the next entry from the file, and +\fIfgetspent\fR +returns the next entry from the given stream, which is assumed to be a file of the proper format\&. +\fIsgetspent\fR +returns a pointer to a +\fIstruct spwd\fR +using the provided string as input\&. +\fIgetspnam\fR +searches from the current position in the file for an entry matching +\fIname\fR\&. +.PP +\fIsetspent\fR +和 +\fIendspent\fR +分别用来开始和结束对影子密码文件的访问。 +.PP +需要使用 +\fIlckpwdf\fR +和 +\fIulckpwdf\fR +函数来确保对 +/etc/shadow +文件的互斥访问。\fIlckpwdf\fR +使用 +\fIpw_lock\fR +来获取一个最长为 15 秒的锁，然后继续使用 +\fIspw_lock\fR +来获取长度为开始的 15 秒时间的剩余量的第二把锁。总计 15 秒之后，无论哪个失败，\fIlckpwdf\fR +都返回 \-1。两把锁都获取成功时，返回 0。 +.SH "DIAGNOSTICS" +.PP +如果没有更多条目了或者处理时出错，此函数返回 NULL。使用 +\fIint\fR +类型返回值的函数返回 0 表示成功，\-1 表示失败。 +.SH "CAVEATS" +.PP +这些函数只能由超级用户使用，因为对影子密码文件的访问是受限的。 +.SH "文件" +.PP +/etc/shadow +.RS 4 +安全用户账户信息。 +.RE +.SH "参见" +.PP +\fBgetpwent\fR(3), +\fBshadow\fR(5)\&. |