mirror of https://github.com/mkerrisk/man-pages
105 lines
2.8 KiB
Plaintext
105 lines
2.8 KiB
Plaintext
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "<utmpx.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" <utmpx.h>
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.SH NAME
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utmpx.h \- user accounting database definitions
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.SH SYNOPSIS
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.LP
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\fB#include <utmpx.h> \fP
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.SH DESCRIPTION
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.LP
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The \fI<utmpx.h>\fP header shall define the \fButmpx\fP structure
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that shall include at least the following members:
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.sp
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.RS
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.nf
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\fBchar ut_user[] \fP User login name. \fB
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char ut_id[] \fP Unspecified initialization process identifier. \fB
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char ut_line[] \fP Device name. \fB
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pid_t ut_pid \fP Process ID. \fB
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short ut_type \fP Type of entry. \fB
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struct timeval ut_tv \fP Time entry was made. \fB
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\fP
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.fi
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.RE
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.LP
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The \fBpid_t\fP type shall be defined through \fBtypedef\fP as described
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in \fI<sys/types.h>\fP .
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.LP
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The \fBtimeval\fP structure shall be defined as described in \fI<sys/time.h>\fP
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\&.
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.LP
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Inclusion of the \fI<utmpx.h>\fP header may also make visible all
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symbols from \fI<sys/time.h>\fP.
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.LP
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The following symbolic constants shall be defined as possible values
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for the \fIut_type\fP member of the \fButmpx\fP
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structure:
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.TP 7
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EMPTY
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No valid user accounting information.
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.TP 7
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BOOT_TIME
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Identifies time of system boot.
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.TP 7
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OLD_TIME
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Identifies time when system clock changed.
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.TP 7
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NEW_TIME
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Identifies time after system clock changed.
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.TP 7
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USER_PROCESS
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Identifies a process.
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.TP 7
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INIT_PROCESS
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Identifies a process spawned by the init process.
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.TP 7
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LOGIN_PROCESS
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Identifies the session leader of a logged-in user.
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.TP 7
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DEAD_PROCESS
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Identifies a session leader who has exited.
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.sp
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.LP
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The following shall be declared as functions and may also be defined
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as macros. Function prototypes shall be provided.
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.sp
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.RS
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.nf
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\fBvoid endutxent(void);
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struct utmpx *getutxent(void);
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struct utmpx *getutxid(const struct utmpx *);
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struct utmpx *getutxline(const struct utmpx *);
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struct utmpx *pututxline(const struct utmpx *);
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void setutxent(void);
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\fP
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.fi
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.RE
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.LP
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\fIThe following sections are informative.\fP
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fI<sys/time.h>\fP , \fI<sys/types.h>\fP , the System
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Interfaces volume of IEEE\ Std\ 1003.1-2001, \fIendutxent\fP()
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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