1 files changed, 93 insertions, 67 deletions
diff --git a/fs/nls/nls_cp874.c b/fs/nls/nls_cp874.c
index a40b6b07b..7217c059c 100644
--- a/fs/nls/nls_cp874.c
+++ b/fs/nls/nls_cp874.c
@@ -11,88 +11,89 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/nls.h>
+#include <linux/errno.h>
 
-static struct nls_unicode charset2uni[256] = {
+static wchar_t charset2uni[256] = {
 	/* 0x00*/
-	{0x00, 0x00}, {0x01, 0x00}, {0x02, 0x00}, {0x03, 0x00},
-	{0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x07, 0x00},
-	{0x08, 0x00}, {0x09, 0x00}, {0x0a, 0x00}, {0x0b, 0x00},
-	{0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00},
+	0x0000, 0x0001, 0x0002, 0x0003,
+	0x0004, 0x0005, 0x0006, 0x0007,
+	0x0008, 0x0009, 0x000a, 0x000b,
+	0x000c, 0x000d, 0x000e, 0x000f,
 	/* 0x10*/
-	{0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00},
-	{0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00},
-	{0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00},
-	{0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00},
+	0x0010, 0x0011, 0x0012, 0x0013,
+	0x0014, 0x0015, 0x0016, 0x0017,
+	0x0018, 0x0019, 0x001a, 0x001b,
+	0x001c, 0x001d, 0x001e, 0x001f,
 	/* 0x20*/
-	{0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
-	{0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00},
-	{0x28, 0x00}, {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00},
-	{0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x2f, 0x00},
+	0x0020, 0x0021, 0x0022, 0x0023,
+	0x0024, 0x0025, 0x0026, 0x0027,
+	0x0028, 0x0029, 0x002a, 0x002b,
+	0x002c, 0x002d, 0x002e, 0x002f,
 	/* 0x30*/
-	{0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00},
-	{0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00},
-	{0x38, 0x00}, {0x39, 0x00}, {0x3a, 0x00}, {0x3b, 0x00},
-	{0x3c, 0x00}, {0x3d, 0x00}, {0x3e, 0x00}, {0x3f, 0x00},
+	0x0030, 0x0031, 0x0032, 0x0033,
+	0x0034, 0x0035, 0x0036, 0x0037,
+	0x0038, 0x0039, 0x003a, 0x003b,
+	0x003c, 0x003d, 0x003e, 0x003f,
 	/* 0x40*/
-	{0x40, 0x00}, {0x41, 0x00}, {0x42, 0x00}, {0x43, 0x00},
-	{0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x00},
-	{0x48, 0x00}, {0x49, 0x00}, {0x4a, 0x00}, {0x4b, 0x00},
-	{0x4c, 0x00}, {0x4d, 0x00}, {0x4e, 0x00}, {0x4f, 0x00},
+	0x0040, 0x0041, 0x0042, 0x0043,
+	0x0044, 0x0045, 0x0046, 0x0047,
+	0x0048, 0x0049, 0x004a, 0x004b,
+	0x004c, 0x004d, 0x004e, 0x004f,
 	/* 0x50*/
-	{0x50, 0x00}, {0x51, 0x00}, {0x52, 0x00}, {0x53, 0x00},
-	{0x54, 0x00}, {0x55, 0x00}, {0x56, 0x00}, {0x57, 0x00},
-	{0x58, 0x00}, {0x59, 0x00}, {0x5a, 0x00}, {0x5b, 0x00},
-	{0x5c, 0x00}, {0x5d, 0x00}, {0x5e, 0x00}, {0x5f, 0x00},
+	0x0050, 0x0051, 0x0052, 0x0053,
+	0x0054, 0x0055, 0x0056, 0x0057,
+	0x0058, 0x0059, 0x005a, 0x005b,
+	0x005c, 0x005d, 0x005e, 0x005f,
 	/* 0x60*/
-	{0x60, 0x00}, {0x61, 0x00}, {0x62, 0x00}, {0x63, 0x00},
-	{0x64, 0x00}, {0x65, 0x00}, {0x66, 0x00}, {0x67, 0x00},
-	{0x68, 0x00}, {0x69, 0x00}, {0x6a, 0x00}, {0x6b, 0x00},
-	{0x6c, 0x00}, {0x6d, 0x00}, {0x6e, 0x00}, {0x6f, 0x00},
+	0x0060, 0x0061, 0x0062, 0x0063,
+	0x0064, 0x0065, 0x0066, 0x0067,
+	0x0068, 0x0069, 0x006a, 0x006b,
+	0x006c, 0x006d, 0x006e, 0x006f,
 	/* 0x70*/
-	{0x70, 0x00}, {0x71, 0x00}, {0x72, 0x00}, {0x73, 0x00},
-	{0x74, 0x00}, {0x75, 0x00}, {0x76, 0x00}, {0x77, 0x00},
-	{0x78, 0x00}, {0x79, 0x00}, {0x7a, 0x00}, {0x7b, 0x00},
-	{0x7c, 0x00}, {0x7d, 0x00}, {0x7e, 0x00}, {0x7f, 0x00},
+	0x0070, 0x0071, 0x0072, 0x0073,
+	0x0074, 0x0075, 0x0076, 0x0077,
+	0x0078, 0x0079, 0x007a, 0x007b,
+	0x007c, 0x007d, 0x007e, 0x007f,
 	/* 0x80*/
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
-	{0x00, 0x00}, {0x26, 0x20}, {0x00, 0x00}, {0x00, 0x00},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2026, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
 	/* 0x90*/
-	{0x00, 0x00}, {0x18, 0x20}, {0x19, 0x20}, {0x1c, 0x20},
-	{0x1d, 0x20}, {0x22, 0x20}, {0x13, 0x20}, {0x14, 0x20},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
+	0x0000, 0x2018, 0x2019, 0x201c,
+	0x201d, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
 	/* 0xa0*/
-	{0xa0, 0x00}, {0x01, 0x0e}, {0x02, 0x0e}, {0x03, 0x0e},
-	{0x04, 0x0e}, {0x05, 0x0e}, {0x06, 0x0e}, {0x07, 0x0e},
-	{0x08, 0x0e}, {0x09, 0x0e}, {0x0a, 0x0e}, {0x0b, 0x0e},
-	{0x0c, 0x0e}, {0x0d, 0x0e}, {0x0e, 0x0e}, {0x0f, 0x0e},
+	0x00a0, 0x0e01, 0x0e02, 0x0e03,
+	0x0e04, 0x0e05, 0x0e06, 0x0e07,
+	0x0e08, 0x0e09, 0x0e0a, 0x0e0b,
+	0x0e0c, 0x0e0d, 0x0e0e, 0x0e0f,
 	/* 0xb0*/
-	{0x10, 0x0e}, {0x11, 0x0e}, {0x12, 0x0e}, {0x13, 0x0e},
-	{0x14, 0x0e}, {0x15, 0x0e}, {0x16, 0x0e}, {0x17, 0x0e},
-	{0x18, 0x0e}, {0x19, 0x0e}, {0x1a, 0x0e}, {0x1b, 0x0e},
-	{0x1c, 0x0e}, {0x1d, 0x0e}, {0x1e, 0x0e}, {0x1f, 0x0e},
+	0x0e10, 0x0e11, 0x0e12, 0x0e13,
+	0x0e14, 0x0e15, 0x0e16, 0x0e17,
+	0x0e18, 0x0e19, 0x0e1a, 0x0e1b,
+	0x0e1c, 0x0e1d, 0x0e1e, 0x0e1f,
 	/* 0xc0*/
-	{0x20, 0x0e}, {0x21, 0x0e}, {0x22, 0x0e}, {0x23, 0x0e},
-	{0x24, 0x0e}, {0x25, 0x0e}, {0x26, 0x0e}, {0x27, 0x0e},
-	{0x28, 0x0e}, {0x29, 0x0e}, {0x2a, 0x0e}, {0x2b, 0x0e},
-	{0x2c, 0x0e}, {0x2d, 0x0e}, {0x2e, 0x0e}, {0x2f, 0x0e},
+	0x0e20, 0x0e21, 0x0e22, 0x0e23,
+	0x0e24, 0x0e25, 0x0e26, 0x0e27,
+	0x0e28, 0x0e29, 0x0e2a, 0x0e2b,
+	0x0e2c, 0x0e2d, 0x0e2e, 0x0e2f,
 	/* 0xd0*/
-	{0x30, 0x0e}, {0x31, 0x0e}, {0x32, 0x0e}, {0x33, 0x0e},
-	{0x34, 0x0e}, {0x35, 0x0e}, {0x36, 0x0e}, {0x37, 0x0e},
-	{0x38, 0x0e}, {0x39, 0x0e}, {0x3a, 0x0e}, {0x00, 0x00},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x3f, 0x0e},
+	0x0e30, 0x0e31, 0x0e32, 0x0e33,
+	0x0e34, 0x0e35, 0x0e36, 0x0e37,
+	0x0e38, 0x0e39, 0x0e3a, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0e3f,
 	/* 0xe0*/
-	{0x40, 0x0e}, {0x41, 0x0e}, {0x42, 0x0e}, {0x43, 0x0e},
-	{0x44, 0x0e}, {0x45, 0x0e}, {0x46, 0x0e}, {0x47, 0x0e},
-	{0x48, 0x0e}, {0x49, 0x0e}, {0x4a, 0x0e}, {0x4b, 0x0e},
-	{0x4c, 0x0e}, {0x4d, 0x0e}, {0x4e, 0x0e}, {0x4f, 0x0e},
+	0x0e40, 0x0e41, 0x0e42, 0x0e43,
+	0x0e44, 0x0e45, 0x0e46, 0x0e47,
+	0x0e48, 0x0e49, 0x0e4a, 0x0e4b,
+	0x0e4c, 0x0e4d, 0x0e4e, 0x0e4f,
 	/* 0xf0*/
-	{0x50, 0x0e}, {0x51, 0x0e}, {0x52, 0x0e}, {0x53, 0x0e},
-	{0x54, 0x0e}, {0x55, 0x0e}, {0x56, 0x0e}, {0x57, 0x0e},
-	{0x58, 0x0e}, {0x59, 0x0e}, {0x5a, 0x0e}, {0x5b, 0x0e},
-	{0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00}, {0x00, 0x00},
+	0x0e50, 0x0e51, 0x0e52, 0x0e53,
+	0x0e54, 0x0e55, 0x0e56, 0x0e57,
+	0x0e58, 0x0e59, 0x0e5a, 0x0e5b,
+	0x0000, 0x0000, 0x0000, 0x0000,
 };
 
 static unsigned char page00[256] = {
@@ -283,10 +284,35 @@ static unsigned char charset2upper[256] = {
 	0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
 };
 
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	unsigned char *uni2charset;
+	unsigned char cl = uni & 0x00ff;
+	unsigned char ch = (uni & 0xff00) >> 8;
+
+	if (boundlen <= 0)
+		return -ENAMETOOLONG;
+
+	uni2charset = page_uni2charset[ch];
+	if (uni2charset && uni2charset[cl])
+		out[0] = uni2charset[cl];
+	else
+		return -EINVAL;
+	return 1;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	*uni = charset2uni[*rawstring];
+	if (*uni == 0x0000)
+		return -EINVAL;
+	return 1;
+}
+
 static struct nls_table table = {
 	"cp874",
-	page_uni2charset,
-	charset2uni,
+	uni2char,
+	char2uni,
 	charset2lower,
 	charset2upper,
 	THIS_MODULE,