minor signed/unsigned warning fixes

apps/asn1pars.c

@@ -341,7 +341,7 @@ bad:
 
 	num -= offset;
 
-	if ((length == 0) || (length > num)) length=(unsigned int)num;
+	if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
 	if(derout) {
 		if(BIO_write(derout, str + offset, length) != (int)length) {
 			BIO_printf(bio_err, "Error writing output\n");

apps/req.c

@@ -1322,7 +1322,7 @@ start:		for (;;)
 			/* If OBJ not recognised ignore it */
 			if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
 			if (BIO_snprintf(buf,sizeof buf,"%s_default",v->name)
-				>= sizeof buf)
+				>= (int)sizeof(buf))
 			   {
 			   BIO_printf(bio_err,"Name '%s' too long\n",v->name);
 			   return 0;
@@ -1387,7 +1387,7 @@ start2:			for (;;)
 					goto start2;
 
 				if (BIO_snprintf(buf,sizeof buf,"%s_default",type)
-					>= sizeof buf)
+					>= (int)sizeof(buf))
 				   {
 				   BIO_printf(bio_err,"Name '%s' too long\n",v->name);
 				   return 0;

crypto/des/cfb_enc.c

@@ -84,7 +84,7 @@ void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
 	c2l(iv,v1);
 	if (enc)
 		{
-		while (l >= n)
+		while (l >= (unsigned long)n)
 			{
 			l-=n;
 			ti[0]=v0;
@@ -126,7 +126,7 @@ void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
 		}
 	else
 		{
-		while (l >= n)
+		while (l >= (unsigned long)n)
 			{
 			l-=n;
 			ti[0]=v0;