1 files changed, 74 insertions, 0 deletions
diff --git a/libbb/parse_number.c b/libbb/parse_number.c
new file mode 100644
index 0000000..c90511d
--- /dev/null
+++ b/libbb/parse_number.c
@@ -0,0 +1,74 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "libbb.h"
+
+
+unsigned long parse_number(const char *numstr,
+		const struct suffix_mult *suffixes)
+{
+	const struct suffix_mult *sm;
+	unsigned long int ret;
+	int len;
+	char *end;
+	
+	ret = strtoul(numstr, &end, 10);
+	if (numstr == end)
+		error_msg_and_die("invalid number `%s'", numstr);
+	while (end[0] != '\0') {
+		sm = suffixes;
+		while ( sm != 0 ) {
+			if(sm->suffix) {
+				len = strlen(sm->suffix);
+				if (strncmp(sm->suffix, end, len) == 0) {
+					ret *= sm->mult;
+					end += len;
+					break;
+				}
+			sm++;
+			
+			} else
+				sm = 0;
+		}
+		if (sm == 0)
+			error_msg_and_die("invalid number `%s'", numstr);
+	}
+	return ret;
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/