getpw: Znovu sestavte položku řádku hesla

Originální popis anglicky: getpw - Re-construct password line entry

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

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

POPIS / INSTRUKCE

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 */
};

NÁVRATOVÁ HODNOTA

The getpw() function returns 0 on success, or -1 if an error occurs.

CHYBY / ERRORY

ENOMEM: Insufficient memory to allocate passwd structure.

FILES

/etc/passwd: password database file

ODPOVÍDAJÍCÍ

SYSVr2.

BUGS

The getpw() function is dangerous as it may overflow the provided buffer buf. It is obsoleted by getpwuid().

SOUVISEJÍCÍ

endpwent(3), fgetpwent(3), getpwent(3), getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)

1996-05-27

GNU