krb5_store_uint8(3)
NAME
krb5_storage, krb5_storage_emem, krb5_storage_from_data,
krb5_storage_from_fd, krb5_storage_from_mem, krb5_storage_set_flags,
krb5_storage_clear_flags, krb5_storage_is_flags,
krb5_storage_set_byteorder, krb5_storage_get_byteorder,
krb5_storage_set_eof_code, krb5_storage_seek, krb5_storage_read,
krb5_storage_write, krb5_storage_free, krb5_storage_to_data,
krb5_store_int32, krb5_ret_int32, krb5_store_uint32, krb5_ret_uint32,
krb5_store_int16, krb5_ret_int16, krb5_store_uint16, krb5_ret_uint16,
krb5_store_int8, krb5_ret_int8, krb5_store_uint8, krb5_ret_uint8,
krb5_store_data, krb5_ret_data, krb5_store_string, krb5_ret_string,
krb5_store_stringnl, krb5_ret_stringnl, krb5_store_stringz,
krb5_ret_stringz, krb5_store_principal, krb5_ret_principal,
krb5_store_keyblock, krb5_ret_keyblock, krb5_store_times, krb5_ret_times,
krb5_store_address, krb5_ret_address, krb5_store_addrs, krb5_ret_addrs,
krb5_store_authdata, krb5_ret_authdata, krb5_store_creds, krb5_ret_creds
-- operates on the Kerberos datatype krb5_storage
LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
SYNOPSIS
#include <krb5.h>
struct krb5_storage;
krb5_storage *
krb5_storage_from_fd(int fd);
krb5_storage *
krb5_storage_emem(void);
krb5_storage *
krb5_storage_from_mem(void *buf, size_t len);
krb5_storage *
krb5_storage_from_data(krb5_data *data);
void
krb5_storage_set_flags(krb5_storage *sp, krb5_flags flags);
void
krb5_storage_clear_flags(krb5_storage *sp, krb5_flags flags);
krb5_boolean
krb5_storage_is_flags(krb5_storage *sp, krb5_flags flags);
void
krb5_storage_set_byteorder(krb5_storage *sp, krb5_flags byteorder);
krb5_flags
krb5_storage_get_byteorder(krb5_storage *sp, krb5_flags byteorder);
void
krb5_storage_set_eof_code(krb5_storage *sp, int code);
off_t
krb5_storage_seek(krb5_storage *sp, off_t offset, int whence);
krb5_ssize_t
krb5_storage_read(krb5_storage *sp, void *buf, size_t len);
krb5_ssize_t
krb5_storage_write(krb5_storage *sp, const void *buf, size_t len);
krb5_error_code
krb5_storage_free(krb5_storage *sp);
krb5_error_code
krb5_storage_to_data(krb5_storage *sp, krb5_data *data);
krb5_error_code
krb5_store_int32(krb5_storage *sp, int32_t value);
krb5_error_code
krb5_ret_int32(krb5_storage *sp, int32_t *value);
krb5_error_code
krb5_ret_uint32(krb5_storage *sp, uint32_t *value);
krb5_error_code
krb5_store_uint32(krb5_storage *sp, uint32_t value);
krb5_error_code
krb5_store_int16(krb5_storage *sp, int16_t value);
krb5_error_code
krb5_ret_int16(krb5_storage *sp, int16_t *value);
krb5_error_code
krb5_store_uint16(krb5_storage *sp, uint16_t value);
krb5_error_code
krb5_ret_uint16(krb5_storage *sp, u_int16_t *value);
krb5_error_code
krb5_store_int8(krb5_storage *sp, int8_t value);
krb5_error_code
krb5_ret_int8(krb5_storage *sp, int8_t *value);
krb5_error_code
krb5_store_uint8(krb5_storage *sp, u_int8_t value);
krb5_error_code
krb5_ret_uint8(krb5_storage *sp, u_int8_t *value);
krb5_error_code
krb5_store_data(krb5_storage *sp, krb5_data data);
krb5_error_code
krb5_ret_data(krb5_storage *sp, krb5_data *data);
krb5_error_code
krb5_store_string(krb5_storage *sp, const char *s);
krb5_error_code
krb5_ret_string(krb5_storage *sp, char **string);
krb5_error_code
krb5_store_stringnl(krb5_storage *sp, const char *s);
krb5_error_code
krb5_ret_stringnl(krb5_storage *sp, char **string);
krb5_error_code
krb5_store_stringz(krb5_storage *sp, const char *s);
krb5_error_code
krb5_ret_stringz(krb5_storage *sp, char **string);
krb5_error_code
krb5_store_principal(krb5_storage *sp, krb5_const_principal p);
krb5_error_code
krb5_ret_principal(krb5_storage *sp, krb5_principal *princ);
krb5_error_code
krb5_store_keyblock(krb5_storage *sp, krb5_keyblock p);
krb5_error_code
krb5_ret_keyblock(krb5_storage *sp, krb5_keyblock *p);
krb5_error_code
krb5_store_times(krb5_storage *sp, krb5_times times);
krb5_error_code
krb5_ret_times(krb5_storage *sp, krb5_times *times);
krb5_error_code
krb5_store_address(krb5_storage *sp, krb5_address p);
krb5_error_code
krb5_ret_address(krb5_storage *sp, krb5_address *adr);
krb5_error_code
krb5_store_addrs(krb5_storage *sp, krb5_addresses p);
krb5_error_code
krb5_ret_addrs(krb5_storage *sp, krb5_addresses *adr);
krb5_error_code
krb5_store_authdata(krb5_storage *sp, krb5_authdata auth);
krb5_error_code
krb5_ret_authdata(krb5_storage *sp, krb5_authdata *auth);
krb5_error_code
krb5_store_creds(krb5_storage *sp, krb5_creds *creds);
krb5_error_code
krb5_ret_creds(krb5_storage *sp, krb5_creds *creds);
DESCRIPTION
The krb5_storage structure holds a storage element that is used for data
manipulation. The structure contains no public accessible elements.
krb5_storage_emem() create a memory based krb5 storage unit that dynam-
icly resized to the ammount of data stored in. The storage never returns
errors, on memory allocation errors exit(3) will be called.
krb5_storage_from_data() create a krb5 storage unit that will read is
data from a krb5_data. There is no copy made of the data, so the caller
must not free data until the storage is freed.
krb5_storage_from_fd() create a krb5 storage unit that will read is data
from a file descriptor. The descriptor must be seekable if
krb5_storage_seek() is used. Caller must not free the file descriptor
before the storage is freed.
krb5_storage_from_mem() create a krb5 storage unit that will read is data
from a memory region. There is no copy made of the data, so the caller
must not free data until the storage is freed.
krb5_storage_set_flags() and krb5_storage_clear_flags() modifies the
behavior of the storage functions. krb5_storage_is_flags() tests if the
flags are set on the krb5_storage. Valid flags to set, is and clear is
are:
KRB5_STORAGE_PRINCIPAL_WRONG_NUM_COMPONENTS
Stores the number of principal componets one too many
when storing principal namees, used for compatibility
with version 1 of file keytabs and version 1 of file
credential caches.
KRB5_STORAGE_PRINCIPAL_NO_NAME_TYPE
Doesn't store the name type in when storing a principal
name, used for compatibility with version 1 of file
keytabs and version 1 of file credential caches.
KRB5_STORAGE_KEYBLOCK_KEYTYPE_TWICE
Stores the keyblock type twice storing a keyblock, used
for compatibility version 3 of file credential caches.
KRB5_STORAGE_BYTEORDER_MASK
bitmask that can be used to and out what type of byte
order order is used.
KRB5_STORAGE_BYTEORDER_BE
Store integers in in big endian byte order, this is the
default mode.
KRB5_STORAGE_BYTEORDER_LE
Store integers in in little endian byte order.
KRB5_STORAGE_BYTEORDER_HOST
Stores the integers in host byte order, used for com-
patibility with version 1 of file keytabs and version 1
and 2 of file credential caches.
KRB5_STORAGE_CREDS_FLAGS_WRONG_BITORDER
Store the credential flags in a krb5_creds in the
reverse bit order.
krb5_storage_set_byteorder() and krb5_storage_get_byteorder() modifies
the byte order used in the storage for integers. The flags used is same
as above. The valid flags are KRB5_STORAGE_BYTEORDER_BE,
KRB5_STORAGE_BYTEORDER_LE and KRB5_STORAGE_BYTEORDER_HOST.
krb5_storage_set_eof_code() sets the error code that will be returned on
end of file condition to code.
krb5_storage_seek() seeks offset bytes in the storage sp. The whence
argument is one of
SEEK_SET offset is from begining of storage.
SEEK_CUR offset is relative from current offset.
SEEK_END offset is from end of storage.
krb5_storage_read() reads len (or less bytes in case of end of file) into
buf from the current offset in the storage sp.
krb5_storage_write() writes len or (less bytes in case of end of file)
from buf from the current offset in the storage sp.
krb5_storage_free() frees the storage sp.
krb5_storage_to_data() converts the data in storage sp into a krb5_data
structure. data must be freed with krb5_data_free() by the caller when
done with the data.
All krb5_store and krb5_ret functions move the current offset forward
when the functions returns.
krb5_store_int32(), krb5_ret_int32(), krb5_store_uint32(),
krb5_ret_uint32(), krb5_store_int16(), krb5_ret_int16(),
krb5_store_uint16(), krb5_ret_uint16(), krb5_store_int8(),
krb5_ret_int8() krb5_store_uint8(), and krb5_ret_uint8() stores and reads
an integer from sp in the byte order specified by the flags set on the
sp.
krb5_store_data() and krb5_ret_data() store and reads a krb5_data. The
length of the data is stored with krb5_store_int32().
krb5_store_string() and krb5_ret_string() store and reads a string by
storing the length of the string with krb5_store_int32() followed by the
string itself.
krb5_store_stringnl() and krb5_ret_stringnl() store and reads a string by
storing string followed by a '0.
krb5_store_stringz() and krb5_ret_stringz() store and reads a string by
storing string followed by a NUL.
krb5_store_principal() and krb5_ret_principal() store and reads a princi-
pal.
krb5_store_keyblock() and krb5_ret_keyblock() store and reads a
krb5_keyblock.
krb5_store_times() krb5_ret_times() store and reads krb5_times structure
.
krb5_store_address() and krb5_ret_address() store and reads a
krb5_address.
krb5_store_addrs() and krb5_ret_addrs() store and reads a krb5_addresses.
krb5_store_authdata() and krb5_ret_authdata() store and reads a
krb5_authdata.
krb5_store_creds() and krb5_ret_creds() store and reads a krb5_creds.
SEE ALSO
krb5(3), krb5_data(3), kerberos(8)
HEIMDAL Aug 18, 2006 HEIMDAL
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