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Diffstat (limited to 'source4/heimdal/lib/asn1/extra.c')
| -rw-r--r-- | source4/heimdal/lib/asn1/extra.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/source4/heimdal/lib/asn1/extra.c b/source4/heimdal/lib/asn1/extra.c new file mode 100644 index 0000000000..ba081e3a63 --- /dev/null +++ b/source4/heimdal/lib/asn1/extra.c @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2003 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "der_locl.h" +#include "heim_asn1.h" + +RCSID("$Id: extra.c,v 1.5 2005/07/19 18:05:16 lha Exp $"); + +int +encode_heim_any(unsigned char *p, size_t len, + const heim_any *data, size_t *size) +{ + if (data->length > len) + return ASN1_OVERFLOW; + p -= data->length; + len -= data->length; + memcpy (p+1, data->data, data->length); + *size = data->length; + return 0; +} + +int +decode_heim_any(const unsigned char *p, size_t len, + heim_any *data, size_t *size) +{ + size_t len_len, length, l; + Der_class thisclass; + Der_type thistype; + unsigned int thistag; + int e; + + if (data == NULL && len == 0) { /* XXX tag less OPTIONAL */ + *size = 0; + return 0; + } + + e = der_get_tag (p, len, &thisclass, &thistype, &thistag, &l); + if (e) return e; + if (l > len) + return ASN1_OVERFLOW; + e = der_get_length(p + l, len - l, &length, &len_len); + if (e) return e; + if (length + len_len + l > len) + return ASN1_OVERFLOW; + + if (data) { /* XXX hack to workaround tag less OPTIONAL data */ + memset(data, 0, sizeof(*data)); + + data->data = malloc(length + len_len + l); + if (data->data == NULL) + return ENOMEM; + data->length = length + len_len + l; + memcpy(data->data, p, length + len_len + l); + } + if (size) *size = length + len_len + l; + return 0; +} + +void +free_heim_any(heim_any *data) +{ + free(data->data); + data->data = NULL; +} + +size_t +length_heim_any(const heim_any *data) +{ + return data->length; +} + +int +copy_heim_any(const heim_any *from, heim_any *to) +{ + to->data = malloc(from->length); + if (to->data == NULL && from->length != 0) + return ENOMEM; + memcpy(to->data, from->data, from->length); + to->length = from->length; + return 0; +} + +int +encode_heim_any_set(unsigned char *p, size_t len, + const heim_any_set *data, size_t *size) +{ + return encode_heim_any(p, len, data, size); +} + + +int +decode_heim_any_set(const unsigned char *p, size_t len, + heim_any_set *data, size_t *size) +{ + memset(data, 0, sizeof(*data)); + data->data = malloc(len); + if (data->data == NULL && len != 0) + return ENOMEM; + data->length = len; + memcpy(data->data, p, len); + if (size) *size = len; + return 0; +} + +void +free_heim_any_set(heim_any_set *data) +{ + free_heim_any(data); +} + +size_t +length_heim_any_set(const heim_any *data) +{ + return length_heim_any(data); +} + +int +copy_heim_any_set(const heim_any_set *from, heim_any_set *to) +{ + return copy_heim_any(from, to); +} + +int +heim_any_cmp(const heim_any_set *p, const heim_any_set *q) +{ + if (p->length != q->length) + return p->length - q->length; + return memcmp(p->data, q->data, p->length); +} |