Name
getpw — Re-construct password line entry
Synopsis
int
getpw( |
uid_t |
uid, |
|
char * |
buf) ; |
DESCRIPTION
The getpw
() function
re-constructs the password line entry for the given user ID
uid
in the buffer
buf
. The returned
buffer contains a line of format
name:passwd:uid:gid:gecos:dir:shell
The passwd
structure is defined in <pwd.h>
as follows:
struct |
passwd { |
}; |
|
char |
* |
pw_name ; |
/* user name */ |
|
char |
* |
pw_passwd ; |
/* user password */ |
|
uid_t |
|
pw_uid ; |
/* user ID */ |
|
gid_t |
|
pw_gid ; |
/* group ID */ |
|
char |
* |
pw_gecos ; |
/* real name */ |
|
char |
* |
pw_dir ; |
/* home directory */ |
|
char |
* |
pw_shell ; |
/* shell program */ |
RETURN VALUE
The getpw
() function returns
0 on success, or −1 if an error occurs.
ERRORS
- ENOMEM
-
Insufficient memory to allocate passwd
structure.
FILES
/etc/passwd
-
password database file
BUGS
The getpw
() function is
dangerous as it may overflow the provided buffer buf
. It is obsoleted by
getpwuid(3).
SEE ALSO
endpwent(3), fgetpwent(3), getpwent(3), getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)
Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
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Formatted or processed versions of this manual, if unaccompanied by
the source, must acknowledge the copyright and authors of this work.
References consulted:
Linux libc source code
Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
386BSD man pages
Modified Sat Jul 24 19:23:25 1993 by Rik Faith (faith@cs.unc.edu)
Modified Mon May 27 21:37:47 1996 by Martin Schulze (joey@linux.de)
|