Penguin

GETPWENT

GETPWENT

NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS FILES CONFORMING TO SEE ALSO


NAME

getpwent, setpwent, endpwent - get password file entry

SYNOPSIS

#include

DESCRIPTION

The getpwent() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd. The first time it is called it returns the first entry; thereafter, it returns successive entries.

The setpwent() function rewinds the file pointer to the beginning of the /etc/passwd file.

The endpwent() function closes the /etc/passwd file.

The passwd structure is defined in as follows:

struct passwd { char pw_name; / user name / 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 getpwent() function returns the passwd structure, or NULL if there are no more entries or an error occurs.

ERRORS

ENOMEM

Insufficient memory to allocate passwd structure.

FILES

/etc/passwd

password database file

CONFORMING TO

SVID 3, BSD 4.3

SEE ALSO

fgetpwent(3), getpwnam(3), getpwuid(3), getpw(3), putpwent(3), passwd(5)


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