diff options
Diffstat (limited to 'lib/krb5/data.c')
| -rw-r--r-- | lib/krb5/data.c | 140 |
1 files changed, 72 insertions, 68 deletions
diff --git a/lib/krb5/data.c b/lib/krb5/data.c index eda1a8b2598b..f62a5532ab60 100644 --- a/lib/krb5/data.c +++ b/lib/krb5/data.c @@ -1,40 +1,38 @@ /* - * Copyright (c) 1997 - 2007 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. + * Copyright (c) 1997 - 2007 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 "krb5_locl.h" -RCSID("$Id: data.c 22064 2007-11-11 16:28:14Z lha $"); - /** * Reset the (potentially uninitalized) krb5_data structure. * @@ -43,7 +41,7 @@ RCSID("$Id: data.c 22064 2007-11-11 16:28:14Z lha $"); * @ingroup krb5 */ -void KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION void KRB5_LIB_CALL krb5_data_zero(krb5_data *p) { p->length = 0; @@ -52,14 +50,16 @@ krb5_data_zero(krb5_data *p) /** * Free the content of krb5_data structure, its ok to free a zeroed - * structure. When done, the structure will be zeroed. - * + * structure (with memset() or krb5_data_zero()). When done, the + * structure will be zeroed. The same function is called + * krb5_free_data_contents() in MIT Kerberos. + * * @param p krb5_data to free. * * @ingroup krb5 */ -void KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION void KRB5_LIB_CALL krb5_data_free(krb5_data *p) { if(p->data != NULL) @@ -68,30 +68,15 @@ krb5_data_free(krb5_data *p) } /** - * Same as krb5_data_free(). - * - * @param context Kerberos 5 context. - * @param data krb5_data to free. - * - * @ingroup krb5 - */ - -void KRB5_LIB_FUNCTION -krb5_free_data_contents(krb5_context context, krb5_data *data) -{ - krb5_data_free(data); -} - -/** * Free krb5_data (and its content). - * + * * @param context Kerberos 5 context. * @param p krb5_data to free. * * @ingroup krb5 */ -void KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION void KRB5_LIB_CALL krb5_free_data(krb5_context context, krb5_data *p) { @@ -101,8 +86,8 @@ krb5_free_data(krb5_context context, /** * Allocate data of and krb5_data. - * - * @param p krb5_data to free. + * + * @param p krb5_data to allocate. * @param len size to allocate. * * @return Returns 0 to indicate success. Otherwise an kerberos et @@ -111,7 +96,7 @@ krb5_free_data(krb5_context context, * @ingroup krb5 */ -krb5_error_code KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_data_alloc(krb5_data *p, int len) { p->data = malloc(len); @@ -123,7 +108,7 @@ krb5_data_alloc(krb5_data *p, int len) /** * Grow (or shrink) the content of krb5_data to a new size. - * + * * @param p krb5_data to free. * @param len new size. * @@ -133,7 +118,7 @@ krb5_data_alloc(krb5_data *p, int len) * @ingroup krb5 */ -krb5_error_code KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_data_realloc(krb5_data *p, int len) { void *tmp; @@ -147,7 +132,7 @@ krb5_data_realloc(krb5_data *p, int len) /** * Copy the data of len into the krb5_data. - * + * * @param p krb5_data to copy into. * @param data data to copy.. * @param len new size. @@ -158,7 +143,7 @@ krb5_data_realloc(krb5_data *p, int len) * @ingroup krb5 */ -krb5_error_code KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_data_copy(krb5_data *p, const void *data, size_t len) { if (len) { @@ -173,7 +158,7 @@ krb5_data_copy(krb5_data *p, const void *data, size_t len) /** * Copy the data into a newly allocated krb5_data. - * + * * @param context Kerberos 5 context. * @param indata the krb5_data data to copy * @param outdata new krb5_date to copy too. Free with krb5_free_data(). @@ -184,20 +169,20 @@ krb5_data_copy(krb5_data *p, const void *data, size_t len) * @ingroup krb5 */ -krb5_error_code KRB5_LIB_FUNCTION -krb5_copy_data(krb5_context context, - const krb5_data *indata, +KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL +krb5_copy_data(krb5_context context, + const krb5_data *indata, krb5_data **outdata) { krb5_error_code ret; ALLOC(*outdata, 1); if(*outdata == NULL) { - krb5_set_error_string(context, "malloc: out of memory"); + krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); return ENOMEM; } ret = der_copy_octet_string(indata, *outdata); if(ret) { - krb5_clear_error_string (context); + krb5_clear_error_message (context); free(*outdata); *outdata = NULL; } @@ -206,7 +191,7 @@ krb5_copy_data(krb5_context context, /** * Compare to data. - * + * * @param data1 krb5_data to compare * @param data2 krb5_data to compare * @@ -215,10 +200,29 @@ krb5_copy_data(krb5_context context, * @ingroup krb5 */ -int KRB5_LIB_FUNCTION +KRB5_LIB_FUNCTION int KRB5_LIB_CALL krb5_data_cmp(const krb5_data *data1, const krb5_data *data2) { if (data1->length != data2->length) return data1->length - data2->length; return memcmp(data1->data, data2->data, data1->length); } + +/** + * Compare to data not exposing timing information from the checksum data + * + * @param data1 krb5_data to compare + * @param data2 krb5_data to compare + * + * @return returns zero for same data, otherwise non zero. + * + * @ingroup krb5 + */ + +KRB5_LIB_FUNCTION int KRB5_LIB_CALL +krb5_data_ct_cmp(const krb5_data *data1, const krb5_data *data2) +{ + if (data1->length != data2->length) + return data1->length - data2->length; + return ct_memcmp(data1->data, data2->data, data1->length); +} |