GETPW(3) manual page

NAME

getpw - Re-construct password line entry

SYNOPSIS

#include <pwd.h> #include <sys/types.h>
int getpw(uid_t uid, char *buf);

DESCRIPTION

The getpw() function re-constructs the password line entry for the given user uid uid in the buffer buf. The returned buffer contains a line of format

name:passwd:uid:gid:gecos:dir:shell

The passwd structure is defined in <pwd.h> 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 getpw() function returns 0 on success, or -1 if an error occurs.

ERRORS

ENOMEM: Insufficient memory to allocate passwd structure.

FILES

/etc/passwd password database file