1 files changed, 72 insertions, 0 deletions
diff --git a/com32/lib/suffix_number.c b/com32/lib/suffix_number.c
new file mode 100644
index 00000000..df073a00
--- /dev/null
+++ b/com32/lib/suffix_number.c
@@ -0,0 +1,72 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2007-2009 H. Peter Anvin - All Rights Reserved
+ *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * suffix_number.c
+ *
+ * Convert a string of a number with potential SI suffix to int-type
+ */
+
+#include <stdlib.h>
+#include <suffix_number.h>
+
+/* Get a value with a potential suffix (k/m/g/t/p/e) */
+unsigned long long suffix_number(const char *str)
+{
+    char *ep;
+    unsigned long long v;
+    int shift;
+
+    v = strtoull(str, &ep, 0);
+    switch (*ep | 0x20) {
+    case 'k':
+	shift = 10;
+	break;
+    case 'm':
+	shift = 20;
+	break;
+    case 'g':
+	shift = 30;
+	break;
+    case 't':
+	shift = 40;
+	break;
+    case 'p':
+	shift = 50;
+	break;
+    case 'e':
+	shift = 60;
+	break;
+    default:
+	shift = 0;
+	break;
+    }
+    v <<= shift;
+
+    return v;
+}