Scroll to navigation

GETPWNAM(3) Linux Programmer's Manual GETPWNAM(3)

NAME

getpwnam, getpwuid - get password file entry

SYNOPSIS

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

struct passwd *getpwnam(const char * name);

struct passwd *getpwuid(uid_t uid);

DESCRIPTION

The getpwnam() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user name name.

The getpwuid() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user uid uid.

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 getpwnam() and getpwuid() functions return the passwd structure, or NULL if the matching entry is not found or an error occurs.

ERRORS

Insufficient memory to allocate passwd structure.

FILES

/etc/passwd
password database file

CONFORMING TO

SVID 3, POSIX, BSD 4.3

SEE ALSO

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

May 27, 1996 GNU