Inital import.

Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)
diff --git a/crypto/asn1/a_utctm.c b/crypto/asn1/a_utctm.c
new file mode 100644
index 0000000..72a09be
--- /dev/null
+++ b/crypto/asn1/a_utctm.c
@@ -0,0 +1,348 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/time_support.h>
+
+
+#if 0
+int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp)
+	{
+#ifndef CHARSET_EBCDIC
+	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
+		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL));
+#else
+	/* KLUDGE! We convert to ascii before writing DER */
+	int len;
+	char tmp[24];
+	ASN1_STRING x = *(ASN1_STRING *)a;
+
+	len = x.length;
+	ebcdic2ascii(tmp, x.data, (len >= sizeof tmp) ? sizeof tmp : len);
+	x.data = tmp;
+	return i2d_ASN1_bytes(&x, pp, V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
+#endif
+	}
+
+
+ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, unsigned char **pp,
+	     long length)
+	{
+	ASN1_UTCTIME *ret=NULL;
+
+	ret=(ASN1_UTCTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
+		V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
+	if (ret == NULL)
+		{
+		OPENSSL_PUT_ERROR(ASN1, XXX, ERR_R_NESTED_ASN1_ERROR);
+		return(NULL);
+		}
+#ifdef CHARSET_EBCDIC
+	ascii2ebcdic(ret->data, ret->data, ret->length);
+#endif
+	if (!ASN1_UTCTIME_check(ret))
+		{
+		OPENSSL_PUT_ERROR(ASN1, XXX, ASN1_R_INVALID_TIME_FORMAT);
+		goto err;
+		}
+
+	return(ret);
+err:
+	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+		M_ASN1_UTCTIME_free(ret);
+	return(NULL);
+	}
+
+#endif
+
+int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d)
+	{
+	static const int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
+	static const int max[8]={99,12,31,23,59,59,12,59};
+	char *a;
+	int n,i,l,o;
+
+	if (d->type != V_ASN1_UTCTIME) return(0);
+	l=d->length;
+	a=(char *)d->data;
+	o=0;
+
+	if (l < 11) goto err;
+	for (i=0; i<6; i++)
+		{
+		if ((i == 5) && ((a[o] == 'Z') ||
+			(a[o] == '+') || (a[o] == '-')))
+			{
+			i++;
+			if (tm)
+				tm->tm_sec = 0;
+			break;
+			}
+		if ((a[o] < '0') || (a[o] > '9')) goto err;
+		n= a[o]-'0';
+		if (++o > l) goto err;
+
+		if ((a[o] < '0') || (a[o] > '9')) goto err;
+		n=(n*10)+ a[o]-'0';
+		if (++o > l) goto err;
+
+		if ((n < min[i]) || (n > max[i])) goto err;
+		if (tm)
+			{
+			switch(i)
+				{
+			case 0:
+				tm->tm_year = n < 50 ? n + 100 : n;
+				break;
+			case 1:
+				tm->tm_mon = n - 1;
+				break;
+			case 2:
+				tm->tm_mday = n;
+				break;
+			case 3:
+				tm->tm_hour = n;
+				break;
+			case 4:
+				tm->tm_min = n;
+				break;
+			case 5:
+				tm->tm_sec = n;
+				break;
+				}
+			}
+		}
+	if (a[o] == 'Z')
+		o++;
+	else if ((a[o] == '+') || (a[o] == '-'))
+		{
+		int offsign = a[o] == '-' ? -1 : 1, offset = 0;
+		o++;
+		if (o+4 > l) goto err;
+		for (i=6; i<8; i++)
+			{
+			if ((a[o] < '0') || (a[o] > '9')) goto err;
+			n= a[o]-'0';
+			o++;
+			if ((a[o] < '0') || (a[o] > '9')) goto err;
+			n=(n*10)+ a[o]-'0';
+			if ((n < min[i]) || (n > max[i])) goto err;
+			if (tm)
+				{
+				if (i == 6)
+					offset = n * 3600;
+				else if (i == 7)
+					offset += n * 60;
+				}
+			o++;
+			}
+		if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
+			return 0;
+		}
+	return o == l;
+err:
+	return 0;
+	}
+
+int ASN1_UTCTIME_check(const ASN1_UTCTIME *d)
+	{
+	return asn1_utctime_to_tm(NULL, d);
+	}
+
+int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
+	{
+	ASN1_UTCTIME t;
+
+	t.type=V_ASN1_UTCTIME;
+	t.length=strlen(str);
+	t.data=(unsigned char *)str;
+	if (ASN1_UTCTIME_check(&t))
+		{
+		if (s != NULL)
+			{
+			if (!ASN1_STRING_set((ASN1_STRING *)s,
+				(unsigned char *)str,t.length))
+				return 0;
+			s->type = V_ASN1_UTCTIME;
+			}
+		return(1);
+		}
+	else
+		return(0);
+	}
+
+ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
+	{
+	return ASN1_UTCTIME_adj(s, t, 0, 0);
+	}
+
+ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
+				int offset_day, long offset_sec)
+	{
+	char *p;
+	struct tm *ts;
+	struct tm data;
+	size_t len = 20;
+
+	if (s == NULL)
+		s=M_ASN1_UTCTIME_new();
+	if (s == NULL)
+		return(NULL);
+
+	ts=OPENSSL_gmtime(&t, &data);
+	if (ts == NULL)
+		return(NULL);
+
+	if (offset_day || offset_sec)
+		{ 
+		if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+			return NULL;
+		}
+
+	if((ts->tm_year < 50) || (ts->tm_year >= 150))
+		return NULL;
+
+	p=(char *)s->data;
+	if ((p == NULL) || ((size_t)s->length < len))
+		{
+		p=OPENSSL_malloc(len);
+		if (p == NULL)
+			{
+			OPENSSL_PUT_ERROR(ASN1, ASN1_UTCTIME_adj, ERR_R_MALLOC_FAILURE);
+			return(NULL);
+			}
+		if (s->data != NULL)
+			OPENSSL_free(s->data);
+		s->data=(unsigned char *)p;
+		}
+
+	BIO_snprintf(p,len,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
+		     ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
+	s->length=strlen(p);
+	s->type=V_ASN1_UTCTIME;
+#ifdef CHARSET_EBCDIC_not
+	ebcdic2ascii(s->data, s->data, s->length);
+#endif
+	return(s);
+	}
+
+
+int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
+	{
+	struct tm stm, ttm;
+	int day, sec;
+
+	if (!asn1_utctime_to_tm(&stm, s))
+		return -2;
+
+	if (!OPENSSL_gmtime(&t, &ttm))
+		return -2;
+
+	if (!OPENSSL_gmtime_diff(&day, &sec, &stm, &ttm))
+		return -2;
+
+	if (day > 0)
+		return 1;
+	if (day < 0)
+		return -1;
+	if (sec > 0)
+		return 1;
+	if (sec < 0)
+		return -1;
+	return 0;
+	}
+
+
+#if 0
+time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
+	{
+	struct tm tm;
+	int offset;
+
+	memset(&tm,'\0',sizeof tm);
+
+#define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
+	tm.tm_year=g2(s->data);
+	if(tm.tm_year < 50)
+		tm.tm_year+=100;
+	tm.tm_mon=g2(s->data+2)-1;
+	tm.tm_mday=g2(s->data+4);
+	tm.tm_hour=g2(s->data+6);
+	tm.tm_min=g2(s->data+8);
+	tm.tm_sec=g2(s->data+10);
+	if(s->data[12] == 'Z')
+		offset=0;
+	else
+		{
+		offset=g2(s->data+13)*60+g2(s->data+15);
+		if(s->data[12] == '-')
+			offset= -offset;
+		}
+#undef g2
+
+	return mktime(&tm)-offset*60; /* FIXME: mktime assumes the current timezone
+	                               * instead of UTC, and unless we rewrite OpenSSL
+				       * in Lisp we cannot locally change the timezone
+				       * without possibly interfering with other parts
+	                               * of the program. timegm, which uses UTC, is
+				       * non-standard.
+	                               * Also time_t is inappropriate for general
+	                               * UTC times because it may a 32 bit type. */
+	}
+#endif