Section (3) putpwent


Linux manual pages Section 3  

Name

putpwent — write a password file entry

Synopsis

#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>
int putpwent( const struct passwd *p,
  FILE *stream);
 
[Note] Note
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
putpwent():
Since glibc 2.19:
_DEFAULT_SOURCE Glibc 2.19 and earlier:
_SVID_SOURCE

DESCRIPTION

The putpwent() function writes a password entry from the structure p in the file associated with stream.

The passwd structure is defined in <pwd.h> as follows:

struct passwd {
  char * pw_name;
/* username */
  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 putpwent() function returns 0 on success, or −1 if an error occurs. In the event of an error, errno is set to indicate the cause.

ERRORS

EINVAL

Invalid (NULL) argument given.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface Attribute Value
putpwent() Thread safety MT-Safe locale

CONFORMING TO

SVr4.

SEE ALSO

endpwent(3), fgetpwent(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3), setpwent(3)

COLOPHON

This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.


  Copyright 1993 David Metcalfe (davidprism.demon.co.uk)

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References consulted:
    Linux libc source code
    Lewine_zsingle_quotesz_s _POSIX Programmer_zsingle_quotesz_s Guide_ (O_zsingle_quotesz_Reilly & Associates, 1991)
    386BSD man pages
Modified Sat Jul 24 18:43:46 1993 by Rik Faith (faithcs.unc.edu)