Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / string_helpers.h

diff --git a/kernel/include/linux/string_helpers.h b/kernel/include/linux/string_helpers.h
new file mode 100644 (file)
index 0000000..71f711d
--- /dev/null
+++ b/kernel/include/linux/string_helpers.h
@@ -0,0 +1,71 @@
+#ifndef _LINUX_STRING_HELPERS_H_
+#define _LINUX_STRING_HELPERS_H_
+
+#include <linux/types.h>
+
+/* Descriptions of the types of units to
+ * print in */
+enum string_size_units {
+       STRING_UNITS_10,        /* use powers of 10^3 (standard SI) */
+       STRING_UNITS_2,         /* use binary powers of 2^10 */
+};
+
+void string_get_size(u64 size, u64 blk_size, enum string_size_units units,
+                    char *buf, int len);
+
+#define UNESCAPE_SPACE         0x01
+#define UNESCAPE_OCTAL         0x02
+#define UNESCAPE_HEX           0x04
+#define UNESCAPE_SPECIAL       0x08
+#define UNESCAPE_ANY           \
+       (UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
+
+int string_unescape(char *src, char *dst, size_t size, unsigned int flags);
+
+static inline int string_unescape_inplace(char *buf, unsigned int flags)
+{
+       return string_unescape(buf, buf, 0, flags);
+}
+
+static inline int string_unescape_any(char *src, char *dst, size_t size)
+{
+       return string_unescape(src, dst, size, UNESCAPE_ANY);
+}
+
+static inline int string_unescape_any_inplace(char *buf)
+{
+       return string_unescape_any(buf, buf, 0);
+}
+
+#define ESCAPE_SPACE           0x01
+#define ESCAPE_SPECIAL         0x02
+#define ESCAPE_NULL            0x04
+#define ESCAPE_OCTAL           0x08
+#define ESCAPE_ANY             \
+       (ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL)
+#define ESCAPE_NP              0x10
+#define ESCAPE_ANY_NP          (ESCAPE_ANY | ESCAPE_NP)
+#define ESCAPE_HEX             0x20
+
+int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
+               unsigned int flags, const char *esc);
+
+static inline int string_escape_mem_any_np(const char *src, size_t isz,
+               char *dst, size_t osz, const char *esc)
+{
+       return string_escape_mem(src, isz, dst, osz, ESCAPE_ANY_NP, esc);
+}
+
+static inline int string_escape_str(const char *src, char *dst, size_t sz,
+               unsigned int flags, const char *esc)
+{
+       return string_escape_mem(src, strlen(src), dst, sz, flags, esc);
+}
+
+static inline int string_escape_str_any_np(const char *src, char *dst,
+               size_t sz, const char *esc)
+{
+       return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, esc);
+}
+
+#endif