putpwent(3)

NAME
putpwent - write a password file entry

LIBRARY
Standard C library (libc, -lc)

SYNOPSIS
#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>

int putpwent(const struct passwd *restrict p, FILE *restrict 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. On failure, it returns -1, and errno is set to indicate the error.

ERRORS

EINVAL
    Invalid (NULL) argument given.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value
 | Thread safety | MT-Safe locale

STANDARDS
SVr4.

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