NAME

getpwent, getpwuid, getpwnam, setpwent, endpwent − get password file entry

SYNOPSIS

#include <pwd.h>

struct passwd *getpwent();

struct passwd *getpwuid(uid) int uid;

struct passwd *getpwnam(name) char *name;

int setpwent();

int endpwent();

DESCRIPTION

Getpwent, getpwuid and getpwnam each return a pointer to an object with the following structure containing the broken-out fields of a line in the password file. 

structpasswd { /* see getpwent(3) */
char*pw_name;
char*pw_passwd;
intpw_uid;
intpw_gid;
intpw_quota;
char*pw_comment;
char*pw_gecos;
char*pw_dir;
char*pw_shell;
};

The fields pw_quota and pw_comment are unused; the others have meanings described in passwd(5).

Getpwent reads the next line (opening the file if necessary); setpwent rewinds the file; endpwent closes it. 

Getpwuid and getpwnam search from the beginning until a matching uid or name is found (or until EOF is encountered). 

FILES

/etc/passwd

SEE ALSO

getlogin(3), getgrent(3), passwd(5)

DIAGNOSTICS

Null pointer (0) returned on EOF or error. 

BUGS

All information is contained in a static area so it must be copied if it is to be saved. 

7th Edition