PUTPWENT(3)                Linux Programmer's Manual               PUTPWENT(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);

   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),  getp-
       wuid(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/.



GNU                               2017-09-15                       PUTPWENT(3)