Man page - putpwent(3)

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Manual

putpwent

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
STANDARDS
HISTORY
SEE ALSO

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).

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STANDARDS

None.

HISTORY

SVr4.

SEE ALSO

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