Manpage of FGETPWENT

FGETPWENT

Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
Index
 

NAME

fgetpwent - get password file entry  

SYNOPSIS

#include <stdio.h>#include <sys/types.h>#include <pwd.h>struct passwd *fgetpwent(FILE *stream);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

fgetpwent():
    Since glibc 2.19:
        _DEFAULT_SOURCE
    Glibc 2.19 and earlier:
        _SVID_SOURCE  

DESCRIPTION

The fgetpwent() function returns a pointer to a structure containing the broken out fields of a line in the file stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file referred to by streammust have the same format as /etc/passwd(see passwd(5)).

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 fgetpwent() function returns a pointer to a passwdstructure, or NULL if there are no more entries or an error occurs. In the event of an error, errnois set to indicate the cause.  

ERRORS

ENOMEM
Insufficient memory to allocate passwdstructure.
 

FILES

/etc/passwd
password database file
InterfaceAttributeValue
fgetpwent() Thread safetyMT-Unsafe race:fgetpwent

 

CONFORMING TO

SVr4.  

SEE ALSO

endpwent(3), fgetpwent_r(3), fopen(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
FILES
CONFORMING TO
SEE ALSO

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Time: 22:27:47 GMT, June 20, 2016