FGETPWENT

fgetpwent − get password file entry

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

struct passwd *fgetpwent(FILE *stream);

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 stream must have the same format as /etc/passwd.

The passwd structure is defined in <pwd.h> as follows:

struct passwd {

/* user name */
char *pw_passwd;

/* user password */
uid_t pw_uid;

/* user id */
gid_t pw_gid;

/* group id */

char *pw_gecos; /* real name */

/* home directory */

char *pw_shell; /* shell program */
};

The fgetpwent() function returns the passwd structure, or NULL if there are no more entries or an error occurs.

ENOMEM

Insufficient memory to allocate passwd structure.

/etc/passwd

password database file

SVID 3

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