PUTPWENT

Section: Linux Programmer's Manual (3)
Updated: 2017-09-15
Index Return to Main Contents

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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);

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 4.13 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/.

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Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

ATTRIBUTES

CONFORMING TO

SEE ALSO

COLOPHON