Move more functions to utils

src/utils.c

@@ -15,6 +15,12 @@
 *  limitations under the License.
 ********************************************************************************/
 
+#include <stdint.h>
+#include <string.h>
+
+#include "ethUstream.h"
+#include "uint256.h"
+
 static const unsigned char hex_digits[] = {'0', '1', '2', '3', '4', '5', '6', '7',
                                            '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
 
@@ -25,4 +31,48 @@ void array_hexstr(char *strbuf, const void *bin, unsigned int len) {
         bin = (const void *)((unsigned int)bin + 1);
     }
     *strbuf = 0; // EOS
+}
+
+void convertUint256BE(uint8_t *data, uint32_t length, uint256_t *target) {
+    uint8_t tmp[32];
+    os_memset(tmp, 0, 32);
+    os_memmove(tmp + 32 - length, data, length);
+    readu256BE(tmp, target);
+}
+
+int local_strchr(char *string, char ch) {
+    unsigned int length = strlen(string);
+    unsigned int i;
+    for (i=0; i<length; i++) {
+        if (string[i] == ch) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+uint32_t getV(txContent_t *txContent) {
+    uint32_t v = 0;
+    if (txContent->vLength == 1) {
+      v = txContent->v[0];
+    }
+    else
+    if (txContent->vLength == 2) {
+      v = (txContent->v[0] << 8) | txContent->v[1];
+    }
+    else
+    if (txContent->vLength == 3) {
+      v = (txContent->v[0] << 16) | (txContent->v[1] << 8) | txContent->v[2];
+    }
+    else
+    if (txContent->vLength == 4) {
+      v = (txContent->v[0] << 24) | (txContent->v[1] << 16) |
+          (txContent->v[2] << 8) | txContent->v[3];
+    }
+    else
+    if (txContent->vLength != 0) {
+        PRINTF("Unexpected v format\n");
+        THROW(EXCEPTION);
+    }
+    return v;
 }