X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fa_time.c;h=7036868fcc110a1cda653bcb2f699541911f0f65;hp=d50e6157e0d7de22a1bb2732bdd3f646f2eaa0cd;hb=84917787b5a3df5b9077a9b8bca38f7ed65dd7b5;hpb=cf1b7d96647d55e533f779e476e3d4371f40445a

diff --git a/crypto/asn1/a_time.c b/crypto/asn1/a_time.c
index d50e6157e0..7036868fcc 100644
--- a/crypto/asn1/a_time.c
+++ b/crypto/asn1/a_time.c
@@ -65,6 +65,7 @@
 #include <time.h>
 #include "cryptlib.h"
 #include <openssl/asn1t.h>
+#include "asn1_locl.h"
 
 IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME)
 
@@ -99,21 +100,32 @@ int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **pp)
 
 ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t)
 	{
+	return ASN1_TIME_adj(s, t, 0, 0);
+	}
+
+ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t,
+				int offset_day, long offset_sec)
+	{
 	struct tm *ts;
-#if defined(OPENSSL_THREADS) && !defined(WIN32) && !defined(__CYGWIN32__)
 	struct tm data;
 
-	gmtime_r(&t,&data);
-	ts=&data; /* should return &data, but doesn't on some systems, so we don't even look at the return value */
-#else
-	ts=gmtime(&t);
-#endif
+	ts=OPENSSL_gmtime(&t,&data);
+	if (ts == NULL)
+		{
+		ASN1err(ASN1_F_ASN1_TIME_ADJ, ASN1_R_ERROR_GETTING_TIME);
+		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 ASN1_UTCTIME_set(s, t);
-	return ASN1_GENERALIZEDTIME_set(s,t);
+			return ASN1_UTCTIME_adj(s, t, offset_day, offset_sec);
+	return ASN1_GENERALIZEDTIME_adj(s, t, offset_day, offset_sec);
 	}
 
-int ASN1_TIME_check(ASN1_TIME *t)
+int ASN1_TIME_check(const ASN1_TIME *t)
 	{
 	if (t->type == V_ASN1_GENERALIZEDTIME)
 		return ASN1_GENERALIZEDTIME_check(t);
@@ -127,6 +139,7 @@ ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZE
 	{
 	ASN1_GENERALIZEDTIME *ret;
 	char *str;
+	int newlen;
 
 	if (!ASN1_TIME_check(t)) return NULL;
 
@@ -149,12 +162,67 @@ ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZE
 	/* grow the string */
 	if (!ASN1_STRING_set(ret, NULL, t->length + 2))
 		return NULL;
+	/* ASN1_STRING_set() allocated 'len + 1' bytes. */
+	newlen = t->length + 2 + 1;
 	str = (char *)ret->data;
 	/* Work out the century and prepend */
-	if (t->data[0] >= '5') strcpy(str, "19");
-	else strcpy(str, "20");
+	if (t->data[0] >= '5') BUF_strlcpy(str, "19", newlen);
+	else BUF_strlcpy(str, "20", newlen);
 
-	strcat(str, (char *)t->data);
+	BUF_strlcat(str, (char *)t->data, newlen);
 
 	return ret;
 	}
+
+int ASN1_TIME_set_string(ASN1_TIME *s, const char *str)
+	{
+	ASN1_TIME t;
+
+	t.length = strlen(str);
+	t.data = (unsigned char *)str;
+	t.flags = 0;
+	
+	t.type = V_ASN1_UTCTIME;
+
+	if (!ASN1_TIME_check(&t))
+		{
+		t.type = V_ASN1_GENERALIZEDTIME;
+		if (!ASN1_TIME_check(&t))
+			return 0;
+		}
+	
+	if (s && !ASN1_STRING_copy((ASN1_STRING *)s, (ASN1_STRING *)&t))
+			return 0;
+
+	return 1;
+	}
+
+static int asn1_time_to_tm(struct tm *tm, const ASN1_TIME *t)
+	{
+	if (t == NULL)
+		{
+		time_t now_t;
+		time(&now_t);
+		if (OPENSSL_gmtime(&now_t, tm))
+			return 1;
+		return 0;
+		}
+		
+	if (t->type == V_ASN1_UTCTIME)
+		return asn1_utctime_to_tm(tm, t);
+	else if (t->type == V_ASN1_GENERALIZEDTIME)
+		return asn1_generalizedtime_to_tm(tm, t);
+
+	return 0;
+	}
+
+int ASN1_TIME_diff(int *pday, int *psec,
+			const ASN1_TIME *from, const ASN1_TIME *to)
+	{
+	struct tm tm_from, tm_to;
+	if (!asn1_time_to_tm(&tm_from, from))
+		return 0;
+	if (!asn1_time_to_tm(&tm_to, to))
+		return 0;
+	return OPENSSL_gmtime_diff(pday, psec, &tm_from, &tm_to);
+	}