UE/API/USIM: move hex functions to common/utils.c

2017-01-25 13:29:10 +01:00
parent 9af3599153
commit 45fccb0203
4 changed files with 63 additions and 54 deletions
@@ -21,3 +21,54 @@ void *malloc_or_fail(size_t size) {
  }
  return ptr;
 }
+
+/****************************************************************************
+ **                                                                        **
+ ** Name:        hex_char_to_hex_value()                                   **
+ **                                                                        **
+ ** Description: Converts an hexadecimal ASCII coded digit into its value. **
+ **                                                                        **
+ ** Inputs:      c:             A char holding the ASCII coded value       **
+ **              Others:        None                                       **
+ **                                                                        **
+ ** Outputs:     None                                                      **
+ **              Return:        Converted value                            **
+ **              Others:        None                                       **
+ **                                                                        **
+ ***************************************************************************/
+uint8_t hex_char_to_hex_value (char c)
+{
+  if (c >= 'A') {
+    /* Remove case bit */
+    c &= ~('a' ^ 'A');
+
+    return (c - 'A' + 10);
+  } else {
+    return (c - '0');
+  }
+}
+
+/****************************************************************************
+ **                                                                        **
+ ** Name:        hex_string_to_hex_value()                                 **
+ **                                                                        **
+ ** Description: Converts an hexadecimal ASCII coded string into its value.**
+ **                                                                        **
+ ** Inputs:      hex_value:     A pointer to the location to store the     **
+ **                             conversion result                          **
+ **              size:          The size of hex_value in bytes             **
+ **              Others:        None                                       **
+ **                                                                        **
+ ** Outputs:     hex_value:     Converted value                            **
+ **              Return:        None                                       **
+ **              Others:        None                                       **
+ **                                                                        **
+ ***************************************************************************/
+void hex_string_to_hex_value (uint8_t *hex_value, const char *hex_string, int size)
+{
+  int i;
+
+  for (i=0; i < size; i++) {
+    hex_value[i] = (hex_char_to_hex_value(hex_string[2 * i]) << 4) | hex_char_to_hex_value(hex_string[2 * i + 1]);
+  }
+}