fgetpwent

(3)

get password file entry

#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

LIBRARY

Standard C library (libc, -lc)

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 stream must 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 passwd structure, or NULL if there are no more entries or an error occurs. In the event of an error, errno is set to indicate the error.

ERRORS

ENOMEM: Insufficient memory to allocate passwd structure.

FILES

/etc/passwd: password database file

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
fgetpwent ()	Thread safety	MT-Unsafe race:fgetpwent

STANDARDS

None.

HISTORY

SVr4.