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-rw-r--r--source/components/utilities/utclib.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/source/components/utilities/utclib.c b/source/components/utilities/utclib.c
index 8c188d00a4cf..9b4c9c6f733d 100644
--- a/source/components/utilities/utclib.c
+++ b/source/components/utilities/utclib.c
@@ -129,6 +129,61 @@ memcmp (
/*******************************************************************************
*
+ * FUNCTION: memmove
+ *
+ * PARAMETERS: Dest - Target of the copy
+ * Src - Source buffer to copy
+ * Count - Number of bytes to copy
+ *
+ * RETURN: Dest
+ *
+ * DESCRIPTION: Copy arbitrary bytes of memory with respect to the overlapping
+ *
+ ******************************************************************************/
+
+void *
+memmove (
+ void *Dest,
+ const void *Src,
+ ACPI_SIZE Count)
+{
+ char *New = (char *) Dest;
+ char *Old = (char *) Src;
+
+
+ if (Old > New)
+ {
+ /* Copy from the beginning */
+
+ while (Count)
+ {
+ *New = *Old;
+ New++;
+ Old++;
+ Count--;
+ }
+ }
+ else if (Old < New)
+ {
+ /* Copy from the end */
+
+ New = New + Count - 1;
+ Old = Old + Count - 1;
+ while (Count)
+ {
+ *New = *Old;
+ New--;
+ Old--;
+ Count--;
+ }
+ }
+
+ return (Dest);
+}
+
+
+/*******************************************************************************
+ *
* FUNCTION: memcpy
*
* PARAMETERS: Dest - Target of the copy
@@ -231,6 +286,93 @@ strlen (
/*******************************************************************************
*
+ * FUNCTION: strpbrk
+ *
+ * PARAMETERS: String - Null terminated string
+ * Delimiters - Delimiters to match
+ *
+ * RETURN: The first occurance in the string of any of the bytes in the
+ * delimiters
+ *
+ * DESCRIPTION: Search a string for any of a set of the delimiters
+ *
+ ******************************************************************************/
+
+char *
+strpbrk (
+ const char *String,
+ const char *Delimiters)
+{
+ const char *Delimiter;
+
+
+ for ( ; *String != '\0'; ++String)
+ {
+ for (Delimiter = Delimiters; *Delimiter != '\0'; Delimiter++)
+ {
+ if (*String == *Delimiter)
+ {
+ return (ACPI_CAST_PTR (char, String));
+ }
+ }
+ }
+
+ return (NULL);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: strtok
+ *
+ * PARAMETERS: String - Null terminated string
+ * Delimiters - Delimiters to match
+ *
+ * RETURN: Pointer to the next token
+ *
+ * DESCRIPTION: Split string into tokens
+ *
+ ******************************************************************************/
+
+char*
+strtok (
+ char *String,
+ const char *Delimiters)
+{
+ char *Begin = String;
+ static char *SavedPtr;
+
+
+ if (Begin == NULL)
+ {
+ if (SavedPtr == NULL)
+ {
+ return (NULL);
+ }
+ Begin = SavedPtr;
+ }
+
+ SavedPtr = strpbrk (Begin, Delimiters);
+ while (SavedPtr == Begin)
+ {
+ *Begin++ = '\0';
+ SavedPtr = strpbrk (Begin, Delimiters);
+ }
+
+ if (SavedPtr)
+ {
+ *SavedPtr++ = '\0';
+ return (Begin);
+ }
+ else
+ {
+ return (NULL);
+ }
+}
+
+
+/*******************************************************************************
+ *
* FUNCTION: strcpy
*
* PARAMETERS: DstString - Target of the copy