Originální popis anglicky:
getpwent, setpwent, endpwent - get password file entry
Návod, kniha: Linux Programmer's Manual
#include <sys/types.h>
#include <pwd.h>
struct passwd *getpwent(void);
void setpwent(void);
void endpwent(void);
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
<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
getpwent() function returns the
passwd structure, or NULL if
there are no more entries or an error occurs.
- ENOMEM
- Insufficient memory to allocate passwd structure.
- /etc/passwd
- password database file
SVID 3, BSD 4.3
fgetpwent(3),
getpw(3),
getpwent_r(3),
getpwnam(3),
getpwuid(3),
putpwent(3),
passwd(5)
