получить запись в файле паролей (get password file entry)
Имя (Name)
fgetpwent - get password file entry
Синопсис (Synopsis)
#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>
struct passwd *fgetpwent(FILE *stream);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
fgetpwent():
Since glibc 2.19:
_DEFAULT_SOURCE
Glibc 2.19 and earlier:
_SVID_SOURCE
Описание (Description)
The fgetpwent() function returns a pointer to a structure
containing the broken out fields of a line in the file stream.
The first time it is called it returns the first entry;
thereafter, it returns successive entries. The file referred to
by stream must have the same format as /etc/passwd (see
passwd(5)).
The passwd structure is defined in <pwd.h> as follows:
struct passwd {
char *pw_name; /* username */
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 */
};
Возвращаемое значение (Return value)
The fgetpwent() function returns a pointer to a passwd structure,
or NULL if there are no more entries or an error occurs. In the
event of an error, errno is set to indicate the error.
Ошибки (Error)
ENOMEM Insufficient memory to allocate passwd structure.
Файлы (Files)
/etc/passwd
password database file
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────┬───────────────┬──────────────────────────┐
│Interface │ Attribute │ Value │
├─────────────────────┼───────────────┼──────────────────────────┤
│fgetpwent() │ Thread safety │ MT-Unsafe race:fgetpwent │
└─────────────────────┴───────────────┴──────────────────────────┘
Стандарты (Conforming to)
SVr4.
Смотри также (See also)
endpwent(3), fgetpwent_r(3), fopen(3), getpw(3), getpwent(3),
getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)
