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Current Path: /usr/src/crypto/heimdal/lib/asn1

usr / src / crypto / heimdal / lib / asn1 /

📁 ..
📄 ChangeLog(44.84 KB)
📄 Makefile.am(7.72 KB)
📄 Makefile.in(51.46 KB)
📄 asn1-common.h(2.06 KB)
📄 asn1-template.h(3.97 KB)
📄 asn1_err.et(1.27 KB)
📄 asn1_gen.c(4.8 KB)
📄 asn1_print.c(9.23 KB)
📄 asn1_queue.h(6.52 KB)
📄 asn1parse.c(81.78 KB)
📄 asn1parse.h(6.44 KB)
📄 asn1parse.y(20.85 KB)
📄 canthandle.asn1(793 B)
📄 check-common.c(10.03 KB)
📄 check-common.h(2.87 KB)
📄 check-der.c(26.7 KB)
📄 check-gen.c(35.1 KB)
📄 check-timegm.c(2.28 KB)
📄 cms.asn1(4.16 KB)
📄 cms.opt(55 B)
📄 der-private.h(1.29 KB)
📄 der-protos.h(10.5 KB)
📄 der.c(3.69 KB)
📄 der.h(3.08 KB)
📄 der_cmp.c(3.48 KB)
📄 der_copy.c(4.75 KB)
📄 der_format.c(3.93 KB)
📄 der_free.c(3.01 KB)
📄 der_get.c(14.56 KB)
📄 der_length.c(4.67 KB)
📄 der_locl.h(2.15 KB)
📄 der_put.c(10.02 KB)
📄 digest.asn1(4.86 KB)
📄 extra.c(3.69 KB)
📄 gen.c(25.75 KB)
📄 gen_copy.c(6.68 KB)
📄 gen_decode.c(17.89 KB)
📄 gen_encode.c(13.23 KB)
📄 gen_free.c(5.01 KB)
📄 gen_glue.c(4.13 KB)
📄 gen_length.c(7.54 KB)
📄 gen_locl.h(3.26 KB)
📄 gen_seq.c(3.89 KB)
📄 gen_template.c(22.2 KB)
📄 hash.c(4.57 KB)
📄 hash.h(2.92 KB)
📄 heim_asn1.h(2.33 KB)
📄 krb5.asn1(20.53 KB)
📄 krb5.opt(147 B)
📄 kx509.asn1(662 B)
📄 lex.c(73.99 KB)
📄 lex.h(1.76 KB)
📄 lex.l(7.74 KB)
📄 main.c(4.78 KB)
📄 pkcs12.asn1(2.29 KB)
📄 pkcs8.asn1(629 B)
📄 pkcs9.asn1(809 B)
📄 pkinit.asn1(5.47 KB)
📄 rfc2459.asn1(16.79 KB)
📄 setchgpw2.asn1(3.82 KB)
📄 symbol.c(2.68 KB)
📄 symbol.h(3.57 KB)
📄 template.c(24.54 KB)
📄 test.asn1(3.1 KB)
📄 test.gen(290 B)
📄 timegm.c(3.83 KB)
📄 version-script.map(135 B)

Editing: der_put.c

/*
 * Copyright (c) 1997-2005 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"

RCSID("$Id$");

/*
 * All encoding functions take a pointer `p' to first position in
 * which to write, from the right, `len' which means the maximum
 * number of characters we are able to write.  The function returns
 * the number of characters written in `size' (if non-NULL).
 * The return value is 0 or an error.
 */

int
der_put_unsigned (unsigned char *p, size_t len, const unsigned *v, size_t *size)
{
    unsigned char *base = p;
    unsigned val = *v;

if (val) {
	while (len > 0 && val) {
	    *p-- = val % 256;
	    val /= 256;
	    --len;
	}
	if (val != 0)
	    return ASN1_OVERFLOW;
	else {
	    if(p[1] >= 128) {
		if(len < 1)
		    return ASN1_OVERFLOW;
		*p-- = 0;
	    }
	    *size = base - p;
	    return 0;
	}
    } else if (len < 1)
	return ASN1_OVERFLOW;
    else {
	*p    = 0;
	*size = 1;
	return 0;
    }
}

int
der_put_integer (unsigned char *p, size_t len, const int *v, size_t *size)
{
    unsigned char *base = p;
    int val = *v;

if(val >= 0) {
	do {
	    if(len < 1)
		return ASN1_OVERFLOW;
	    *p-- = val % 256;
	    len--;
	    val /= 256;
	} while(val);
	if(p[1] >= 128) {
	    if(len < 1)
		return ASN1_OVERFLOW;
	    *p-- = 0;
	    len--;
	}
    } else {
	val = ~val;
	do {
	    if(len < 1)
		return ASN1_OVERFLOW;
	    *p-- = ~(val % 256);
	    len--;
	    val /= 256;
	} while(val);
	if(p[1] < 128) {
	    if(len < 1)
		return ASN1_OVERFLOW;
	    *p-- = 0xff;
	    len--;
	}
    }
    *size = base - p;
    return 0;
}

int
der_put_length (unsigned char *p, size_t len, size_t val, size_t *size)
{
    if (len < 1)
	return ASN1_OVERFLOW;

if (val < 128) {
	*p = val;
	*size = 1;
    } else {
	size_t l = 0;

while(val > 0) {
	    if(len < 2)
		return ASN1_OVERFLOW;
	    *p-- = val % 256;
	    val /= 256;
	    len--;
	    l++;
	}
	*p = 0x80 | l;
	if(size)
	    *size = l + 1;
    }
    return 0;
}

int
der_put_boolean(unsigned char *p, size_t len, const int *data, size_t *size)
{
    if(len < 1)
	return ASN1_OVERFLOW;
    if(*data != 0)
	*p = 0xff;
    else
	*p = 0;
    *size = 1;
    return 0;
}

int
der_put_general_string (unsigned char *p, size_t len,
			const heim_general_string *str, size_t *size)
{
    size_t slen = strlen(*str);

if (len < slen)
	return ASN1_OVERFLOW;
    p -= slen;
    memcpy (p+1, *str, slen);
    *size = slen;
    return 0;
}

int
der_put_utf8string (unsigned char *p, size_t len,
		    const heim_utf8_string *str, size_t *size)
{
    return der_put_general_string(p, len, str, size);
}

int
der_put_printable_string (unsigned char *p, size_t len,
			  const heim_printable_string *str, size_t *size)
{
    return der_put_octet_string(p, len, str, size);
}

int
der_put_ia5_string (unsigned char *p, size_t len,
		    const heim_ia5_string *str, size_t *size)
{
    return der_put_octet_string(p, len, str, size);
}

int
der_put_bmp_string (unsigned char *p, size_t len,
		    const heim_bmp_string *data, size_t *size)
{
    size_t i;
    if (len / 2 < data->length)
	return ASN1_OVERFLOW;
    p -= data->length * 2;
    for (i = 0; i < data->length; i++) {
	p[1] = (data->data[i] >> 8) & 0xff;
	p[2] = data->data[i] & 0xff;
	p += 2;
    }
    if (size) *size = data->length * 2;
    return 0;
}

int
der_put_universal_string (unsigned char *p, size_t len,
			  const heim_universal_string *data, size_t *size)
{
    size_t i;
    if (len / 4 < data->length)
	return ASN1_OVERFLOW;
    p -= data->length * 4;
    for (i = 0; i < data->length; i++) {
	p[1] = (data->data[i] >> 24) & 0xff;
	p[2] = (data->data[i] >> 16) & 0xff;
	p[3] = (data->data[i] >> 8) & 0xff;
	p[4] = data->data[i] & 0xff;
	p += 4;
    }
    if (size) *size = data->length * 4;
    return 0;
}

int
der_put_visible_string (unsigned char *p, size_t len,
			 const heim_visible_string *str, size_t *size)
{
    return der_put_general_string(p, len, str, size);
}

int
der_put_octet_string (unsigned char *p, size_t len,
		      const heim_octet_string *data, size_t *size)
{
    if (len < data->length)
	return ASN1_OVERFLOW;
    p -= data->length;
    memcpy (p+1, data->data, data->length);
    *size = data->length;
    return 0;
}

int
der_put_heim_integer (unsigned char *p, size_t len,
		     const heim_integer *data, size_t *size)
{
    unsigned char *buf = data->data;
    int hibitset = 0;

if (data->length == 0) {
	if (len < 1)
	    return ASN1_OVERFLOW;
	*p-- = 0;
	if (size)
	    *size = 1;
	return 0;
    }
    if (len < data->length)
	return ASN1_OVERFLOW;

len -= data->length;

if (data->negative) {
	int i, carry;
	for (i = data->length - 1, carry = 1; i >= 0; i--) {
	    *p = buf[i] ^ 0xff;
	    if (carry)
		carry = !++*p;
	    p--;
	}
	if (p[1] < 128) {
	    if (len < 1)
		return ASN1_OVERFLOW;
	    *p-- = 0xff;
	    len--;
	    hibitset = 1;
	}
    } else {
	p -= data->length;
	memcpy(p + 1, buf, data->length);

if (p[1] >= 128) {
	    if (len < 1)
		return ASN1_OVERFLOW;
	    p[0] = 0;
	    len--;
	    hibitset = 1;
	}
    }
    if (size)
	*size = data->length + hibitset;
    return 0;
}

int
der_put_generalized_time (unsigned char *p, size_t len,
			  const time_t *data, size_t *size)
{
    heim_octet_string k;
    size_t l;
    int e;

e = _heim_time2generalizedtime (*data, &k, 1);
    if (e)
	return e;
    e = der_put_octet_string(p, len, &k, &l);
    free(k.data);
    if(e)
	return e;
    if(size)
	*size = l;
    return 0;
}

int
der_put_utctime (unsigned char *p, size_t len,
		 const time_t *data, size_t *size)
{
    heim_octet_string k;
    size_t l;
    int e;

e = _heim_time2generalizedtime (*data, &k, 0);
    if (e)
	return e;
    e = der_put_octet_string(p, len, &k, &l);
    free(k.data);
    if(e)
	return e;
    if(size)
	*size = l;
    return 0;
}

int
der_put_oid (unsigned char *p, size_t len,
	     const heim_oid *data, size_t *size)
{
    unsigned char *base = p;
    int n;

for (n = data->length - 1; n >= 2; --n) {
	unsigned u = data->components[n];

if (len < 1)
	    return ASN1_OVERFLOW;
	*p-- = u % 128;
	u /= 128;
	--len;
	while (u > 0) {
	    if (len < 1)
		return ASN1_OVERFLOW;
	    *p-- = 128 + u % 128;
	    u /= 128;
	    --len;
	}
    }
    if (len < 1)
	return ASN1_OVERFLOW;
    *p-- = 40 * data->components[0] + data->components[1];
    *size = base - p;
    return 0;
}

int
der_put_tag (unsigned char *p, size_t len, Der_class class, Der_type type,
	     unsigned int tag, size_t *size)
{
    if (tag <= 30) {
	if (len < 1)
	    return ASN1_OVERFLOW;
	*p = MAKE_TAG(class, type, tag);
	*size = 1;
    } else {
	size_t ret = 0;
	unsigned int continuation = 0;

do {
	    if (len < 1)
		return ASN1_OVERFLOW;
	    *p-- = tag % 128 | continuation;
	    len--;
	    ret++;
	    tag /= 128;
	    continuation = 0x80;
	} while(tag > 0);
	if (len < 1)
	    return ASN1_OVERFLOW;
	*p-- = MAKE_TAG(class, type, 0x1f);
	ret++;
	*size = ret;
    }
    return 0;
}

int
der_put_length_and_tag (unsigned char *p, size_t len, size_t len_val,
			Der_class class, Der_type type,
			unsigned int tag, size_t *size)
{
    size_t ret = 0;
    size_t l;
    int e;

e = der_put_length (p, len, len_val, &l);
    if(e)
	return e;
    p -= l;
    len -= l;
    ret += l;
    e = der_put_tag (p, len, class, type, tag, &l);
    if(e)
	return e;

ret += l;
    *size = ret;
    return 0;
}

int
_heim_time2generalizedtime (time_t t, heim_octet_string *s, int gtimep)
{
     struct tm tm;
     const size_t len = gtimep ? 15 : 13;

s->data = malloc(len + 1);
     if (s->data == NULL)
	 return ENOMEM;
     s->length = len;
     if (_der_gmtime(t, &tm) == NULL)
	 return ASN1_BAD_TIMEFORMAT;
     if (gtimep)
	 snprintf (s->data, len + 1, "%04d%02d%02d%02d%02d%02dZ",
		   tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
		   tm.tm_hour, tm.tm_min, tm.tm_sec);
     else
	 snprintf (s->data, len + 1, "%02d%02d%02d%02d%02d%02dZ",
		   tm.tm_year % 100, tm.tm_mon + 1, tm.tm_mday,
		   tm.tm_hour, tm.tm_min, tm.tm_sec);

return 0;
}

int
der_put_bit_string (unsigned char *p, size_t len,
		    const heim_bit_string *data, size_t *size)
{
    size_t data_size = (data->length + 7) / 8;
    if (len < data_size + 1)
	return ASN1_OVERFLOW;
    p -= data_size + 1;

memcpy (p+2, data->data, data_size);
    if (data->length && (data->length % 8) != 0)
	p[1] = 8 - (data->length % 8);
    else
	p[1] = 0;
    *size = data_size + 1;
    return 0;
}

int
_heim_der_set_sort(const void *a1, const void *a2)
{
    const struct heim_octet_string *s1 = a1, *s2 = a2;
    int ret;

ret = memcmp(s1->data, s2->data,
		 s1->length < s2->length ? s1->length : s2->length);
    if(ret)
	return ret;
    return s1->length - s2->length;
}

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