diff options
Diffstat (limited to 'lib/libgssapi/gss_oid_to_str.c')
| -rw-r--r-- | lib/libgssapi/gss_oid_to_str.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/lib/libgssapi/gss_oid_to_str.c b/lib/libgssapi/gss_oid_to_str.c new file mode 100644 index 0000000..05e0d73 --- /dev/null +++ b/lib/libgssapi/gss_oid_to_str.c @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 2000 The Regents of the University of Michigan. + * All rights reserved. + * + * Copyright (c) 2000 Dug Song <dugsong@UMICH.EDU>. + * All rights reserved, all wrongs reversed. + * + * 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 University 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 ``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 REGENTS 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. + */ +/* $FreeBSD$ */ + +#include <gssapi/gssapi.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> + +#include "utils.h" + +OM_uint32 +gss_oid_to_str(OM_uint32 *minor_status, gss_OID oid, gss_buffer_t oid_str) +{ + char numstr[128]; + unsigned long number; + int numshift; + size_t string_length; + size_t i; + unsigned char *cp; + char *bp; + + *minor_status = 0; + _gss_buffer_zero(oid_str); + + if (oid == GSS_C_NULL_OID) + return (GSS_S_FAILURE); + + /* Decoded according to krb5/gssapi_krb5.c */ + + /* First determine the size of the string */ + string_length = 0; + number = 0; + numshift = 0; + cp = (unsigned char *) oid->elements; + number = (unsigned long) cp[0]; + sprintf(numstr, "%ld ", number/40); + string_length += strlen(numstr); + sprintf(numstr, "%ld ", number%40); + string_length += strlen(numstr); + for (i=1; i<oid->length; i++) { + if ( (size_t) (numshift+7) < (sizeof(unsigned long)*8)) { + number = (number << 7) | (cp[i] & 0x7f); + numshift += 7; + } + else { + *minor_status = 0; + return(GSS_S_FAILURE); + } + if ((cp[i] & 0x80) == 0) { + sprintf(numstr, "%ld ", number); + string_length += strlen(numstr); + number = 0; + numshift = 0; + } + } + /* + * If we get here, we've calculated the length of "n n n ... n ". + * Add 4 here for "{ " and "}\0". + */ + string_length += 4; + if ((bp = (char *) malloc(string_length))) { + strcpy(bp, "{ "); + number = (unsigned long) cp[0]; + sprintf(numstr, "%ld ", number/40); + strcat(bp, numstr); + sprintf(numstr, "%ld ", number%40); + strcat(bp, numstr); + number = 0; + cp = (unsigned char *) oid->elements; + for (i=1; i<oid->length; i++) { + number = (number << 7) | (cp[i] & 0x7f); + if ((cp[i] & 0x80) == 0) { + sprintf(numstr, "%ld ", number); + strcat(bp, numstr); + number = 0; + } + } + strcat(bp, "}"); + oid_str->length = strlen(bp)+1; + oid_str->value = (void *) bp; + *minor_status = 0; + return(GSS_S_COMPLETE); + } + *minor_status = ENOMEM; + return(GSS_S_FAILURE); +} |
