From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 fs/smbfs/getopt.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 fs/smbfs/getopt.c

(limited to 'fs/smbfs/getopt.c')

diff --git a/fs/smbfs/getopt.c b/fs/smbfs/getopt.c
new file mode 100644
index 00000000000..7ae0f5273ab
--- /dev/null
+++ b/fs/smbfs/getopt.c
@@ -0,0 +1,64 @@
+/*
+ * getopt.c
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/net.h>
+
+#include "getopt.h"
+
+/**
+ *	smb_getopt - option parser
+ *	@caller: name of the caller, for error messages
+ *	@options: the options string
+ *	@opts: an array of &struct option entries controlling parser operations
+ *	@optopt: output; will contain the current option
+ *	@optarg: output; will contain the value (if one exists)
+ *	@flag: output; may be NULL; should point to a long for or'ing flags
+ *	@value: output; may be NULL; will be overwritten with the integer value
+ *		of the current argument.
+ *
+ *	Helper to parse options on the format used by mount ("a=b,c=d,e,f").
+ *	Returns opts->val if a matching entry in the 'opts' array is found,
+ *	0 when no more tokens are found, -1 if an error is encountered.
+ */
+int smb_getopt(char *caller, char **options, struct option *opts,
+	       char **optopt, char **optarg, unsigned long *flag,
+	       unsigned long *value)
+{
+	char *token;
+	char *val;
+	int i;
+
+	do {
+		if ((token = strsep(options, ",")) == NULL)
+			return 0;
+	} while (*token == '\0');
+	*optopt = token;
+
+	*optarg = NULL;
+	if ((val = strchr (token, '=')) != NULL) {
+		*val++ = 0;
+		if (value)
+			*value = simple_strtoul(val, NULL, 0);
+		*optarg = val;
+	}
+
+	for (i = 0; opts[i].name != NULL; i++) {
+		if (!strcmp(opts[i].name, token)) {
+			if (!opts[i].flag && (!val || !*val)) {
+				printk("%s: the %s option requires an argument\n",
+				       caller, token);
+				return -1;
+			}
+
+			if (flag && opts[i].flag)
+				*flag |= opts[i].flag;
+
+			return opts[i].val;
+		}
+	}
+	printk("%s: Unrecognized mount option %s\n", caller, token);
+	return -1;
+}
-- 
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