Linux cli command putpwent

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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).

InterfaceAttributeValue

putpwent()

Thread safetyMT-Safe locale

STANDARDS

None.

HISTORY

SVr4.

SEE ALSO

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

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