DOKK / manpages / debian 10 / manpages-pt-dev / getpwnam.3.pt
GETPWNAM(3) Linux Programmer's Manual GETPWNAM(3)

getpwnam, getpwuid - get password file entry

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

struct passwd *getpwnam(const char * name);

struct passwd *getpwuid(uid_t uid);

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 */ };

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

Insufficient memory to allocate passwd structure.

/etc/passwd
password database file

SVID 3, POSIX, BSD 4.3

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

May 27, 1996 GNU