getpwwho.3

<B>Digital的Unix操作系统VAX 4.2源码</B>

From James.Gosling@CMU-VLSI@CMU-10A  Thu Sep 10 07:17:42 1981
Date: 10 Sep 1981 10:08:10-EDT
From: James.Gosling at CMU-VLSI at CMU-10A
Reply-To: James.Gosling at CMU-10A
To: IngVAX.eric@Berkeley
Subject: getpwwho.1
Status: R

.TH GETPWWHO 3 5/9/80
.CM 2
.SH "NAME"
getpwwho \- get password file entry using liberal name matching.
.SH "SYNOPSIS"
.B
#include <pwd.h>
.br
.B
extern struct gecos *_gecos;
.sp
.B
struct passwd *getpwwho(name)
.br
.B
char *name;
.sp
.B
struct passwd *getpwambig();
.SH "DESCRIPTION"
.I
Getpwwho
is much like
.IR getpwnam (3),
except that it is much more
liberal about the names that it will match.
.I
Name
may be a full login name
or it may be the unique abbreviation of a persons last name, or it
may be a unique abbreviation of a persons first
and last name.
.sp
The subroutine
.I
getpwambig
may be used to iterate through all the
matches for the name given to the last call to
.IR getpwwho .
If
.I
getpwwho
returns -1 then name does not uniquely determine
a person, a program can then print out all the names that match
by repeatedly calling
.I
getpwambig
until
.I
getpwambig
returns 0.
.sp
Both
.I
getpwwho
and
.I
getpwambig
return with
.I
_gecos
pointing to
a
.I
gecos
structure that results from parsing the GECOS field of
the
.I
passwd
entry that is returned.
.SH "FILES"
/etc/passwd	The password file.
.SH "SEE ALSO"
getpwnam(3),
parsgecos(3)
.SH "EXAMPLE"
.B
getpwwho("harry bovik");
.br
.B
getpwwho("bovik");
.br
.B
getpwwho("H Bovik");
.br
.B
getpwwho("hb");
.RS
All of these match the person "Harry Q. Bovik",
who has "hb" as his login name.
.RE
.SH "DIAGNOSTICS"
.I
Getpwwho
return 0 if the person isn't found, -1 if the name
is ambiguous.
In the case that the name is ambiguous a program can
iterate through all the possibilities by using
.IR getpwambig .
.SH "HISTORY"
.TP
09-May-80  James Gosling (jag) at Carnegie-Mellon University
Created.