add DFS_USING_WORKDIR pre-define

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1443 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/utilities/zmodem/crc.h

@@ -1,129 +1,129 @@
-/*
- *  Crc calculation stuff
- */
-
-/* crctab calculated by Mark G. Mendel, Network Systems Corporation */
-static unsigned short crctab[256] = {
-    0x0000,  0x1021,  0x2042,  0x3063,  0x4084,  0x50a5,  0x60c6,  0x70e7,
-    0x8108,  0x9129,  0xa14a,  0xb16b,  0xc18c,  0xd1ad,  0xe1ce,  0xf1ef,
-    0x1231,  0x0210,  0x3273,  0x2252,  0x52b5,  0x4294,  0x72f7,  0x62d6,
-    0x9339,  0x8318,  0xb37b,  0xa35a,  0xd3bd,  0xc39c,  0xf3ff,  0xe3de,
-    0x2462,  0x3443,  0x0420,  0x1401,  0x64e6,  0x74c7,  0x44a4,  0x5485,
-    0xa56a,  0xb54b,  0x8528,  0x9509,  0xe5ee,  0xf5cf,  0xc5ac,  0xd58d,
-    0x3653,  0x2672,  0x1611,  0x0630,  0x76d7,  0x66f6,  0x5695,  0x46b4,
-    0xb75b,  0xa77a,  0x9719,  0x8738,  0xf7df,  0xe7fe,  0xd79d,  0xc7bc,
-    0x48c4,  0x58e5,  0x6886,  0x78a7,  0x0840,  0x1861,  0x2802,  0x3823,
-    0xc9cc,  0xd9ed,  0xe98e,  0xf9af,  0x8948,  0x9969,  0xa90a,  0xb92b,
-    0x5af5,  0x4ad4,  0x7ab7,  0x6a96,  0x1a71,  0x0a50,  0x3a33,  0x2a12,
-    0xdbfd,  0xcbdc,  0xfbbf,  0xeb9e,  0x9b79,  0x8b58,  0xbb3b,  0xab1a,
-    0x6ca6,  0x7c87,  0x4ce4,  0x5cc5,  0x2c22,  0x3c03,  0x0c60,  0x1c41,
-    0xedae,  0xfd8f,  0xcdec,  0xddcd,  0xad2a,  0xbd0b,  0x8d68,  0x9d49,
-    0x7e97,  0x6eb6,  0x5ed5,  0x4ef4,  0x3e13,  0x2e32,  0x1e51,  0x0e70,
-    0xff9f,  0xefbe,  0xdfdd,  0xcffc,  0xbf1b,  0xaf3a,  0x9f59,  0x8f78,
-    0x9188,  0x81a9,  0xb1ca,  0xa1eb,  0xd10c,  0xc12d,  0xf14e,  0xe16f,
-    0x1080,  0x00a1,  0x30c2,  0x20e3,  0x5004,  0x4025,  0x7046,  0x6067,
-    0x83b9,  0x9398,  0xa3fb,  0xb3da,  0xc33d,  0xd31c,  0xe37f,  0xf35e,
-    0x02b1,  0x1290,  0x22f3,  0x32d2,  0x4235,  0x5214,  0x6277,  0x7256,
-    0xb5ea,  0xa5cb,  0x95a8,  0x8589,  0xf56e,  0xe54f,  0xd52c,  0xc50d,
-    0x34e2,  0x24c3,  0x14a0,  0x0481,  0x7466,  0x6447,  0x5424,  0x4405,
-    0xa7db,  0xb7fa,  0x8799,  0x97b8,  0xe75f,  0xf77e,  0xc71d,  0xd73c,
-    0x26d3,  0x36f2,  0x0691,  0x16b0,  0x6657,  0x7676,  0x4615,  0x5634,
-    0xd94c,  0xc96d,  0xf90e,  0xe92f,  0x99c8,  0x89e9,  0xb98a,  0xa9ab,
-    0x5844,  0x4865,  0x7806,  0x6827,  0x18c0,  0x08e1,  0x3882,  0x28a3,
-    0xcb7d,  0xdb5c,  0xeb3f,  0xfb1e,  0x8bf9,  0x9bd8,  0xabbb,  0xbb9a,
-    0x4a75,  0x5a54,  0x6a37,  0x7a16,  0x0af1,  0x1ad0,  0x2ab3,  0x3a92,
-    0xfd2e,  0xed0f,  0xdd6c,  0xcd4d,  0xbdaa,  0xad8b,  0x9de8,  0x8dc9,
-    0x7c26,  0x6c07,  0x5c64,  0x4c45,  0x3ca2,  0x2c83,  0x1ce0,  0x0cc1,
-    0xef1f,  0xff3e,  0xcf5d,  0xdf7c,  0xaf9b,  0xbfba,  0x8fd9,  0x9ff8,
-    0x6e17,  0x7e36,  0x4e55,  0x5e74,  0x2e93,  0x3eb2,  0x0ed1,  0x1ef0
-};
-
-/*
- * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell. 
- *  NOTE: First srgument must be in range 0 to 255.
- *        Second argument is referenced twice.
- * 
- * Programmers may incorporate any or all code into their programs, 
- * giving proper credit within the source. Publication of the 
- * source routines is permitted so long as proper credit is given 
- * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg, 
- * Omen Technology.
- */
-
-#define updcrc16(cp, crc) ( crctab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp)
-
-/*
- * Copyright (C) 1986 Gary S. Brown.  You may use this program, or
- * code or tables extracted from it, as desired without restriction.
- */
-
-/* First, the polynomial itself and its table of feedback terms.  The  */
-/* polynomial is                                                       */
-/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
-/* Note that we take it "backwards" and put the highest-order term in  */
-/* the lowest-order bit.  The X^32 term is "implied"; the LSB is the   */
-/* X^31 term, etc.  The X^0 term (usually shown as "+1") results in    */
-/* the MSB being 1.                                                    */
-
-/* Note that the usual hardware shift register implementation, which   */
-/* is what we're using (we're merely optimizing it by doing eight-bit  */
-/* chunks at a time) shifts bits into the lowest-order term.  In our   */
-/* implementation, that means shifting towards the right.  Why do we   */
-/* do it this way?  Because the calculated CRC must be transmitted in  */
-/* order from highest-order term to lowest-order term.  UARTs transmit */
-/* characters in order from LSB to MSB.  By storing the CRC this way,  */
-/* we hand it to the UART in the order low-byte to high-byte; the UART */
-/* sends each low-bit to hight-bit; and the result is transmission bit */
-/* by bit from highest- to lowest-order term without requiring any bit */
-/* shuffling on our part.  Reception works similarly.                  */
-
-/* The feedback terms table consists of 256, 32-bit entries.  Notes:   */
-/*                                                                     */
-/*     The table can be generated at runtime if desired; code to do so */
-/*     is shown later.  It might not be obvious, but the feedback      */
-/*     terms simply represent the results of eight shift/xor opera-    */
-/*     tions for all combinations of data and CRC register values.     */
-/*                                                                     */
-/*     The values must be right-shifted by eight bits by the "updcrc"  */
-/*     logic; the shift must be unsigned (bring in zeroes).  On some   */
-/*     hardware you could probably optimize the shift in assembler by  */
-/*     using byte-swap instructions.                                   */
-
-static unsigned long cr3tab[] = { /* CRC polynomial 0xedb88320 */
-0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
-0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
-0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
-0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
-0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
-0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
-0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
-0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
-0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
-0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
-0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
-0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
-0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
-0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
-0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
-0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
-0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
-0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
-0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
-0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
-0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
-0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
-};
-
-#define updcrc32(b, c) (cr3tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF))
-
-/* End of crctab.c */
+/*
+ *  crc calculation stuff
+ */
+
+/* crctab calculated by Mark G. Mendel, Network Systems Corporation */
+static unsigned short crctab[256] = {
+    0x0000,  0x1021,  0x2042,  0x3063,  0x4084,  0x50a5,  0x60c6,  0x70e7,
+    0x8108,  0x9129,  0xa14a,  0xb16b,  0xc18c,  0xd1ad,  0xe1ce,  0xf1ef,
+    0x1231,  0x0210,  0x3273,  0x2252,  0x52b5,  0x4294,  0x72f7,  0x62d6,
+    0x9339,  0x8318,  0xb37b,  0xa35a,  0xd3bd,  0xc39c,  0xf3ff,  0xe3de,
+    0x2462,  0x3443,  0x0420,  0x1401,  0x64e6,  0x74c7,  0x44a4,  0x5485,
+    0xa56a,  0xb54b,  0x8528,  0x9509,  0xe5ee,  0xf5cf,  0xc5ac,  0xd58d,
+    0x3653,  0x2672,  0x1611,  0x0630,  0x76d7,  0x66f6,  0x5695,  0x46b4,
+    0xb75b,  0xa77a,  0x9719,  0x8738,  0xf7df,  0xe7fe,  0xd79d,  0xc7bc,
+    0x48c4,  0x58e5,  0x6886,  0x78a7,  0x0840,  0x1861,  0x2802,  0x3823,
+    0xc9cc,  0xd9ed,  0xe98e,  0xf9af,  0x8948,  0x9969,  0xa90a,  0xb92b,
+    0x5af5,  0x4ad4,  0x7ab7,  0x6a96,  0x1a71,  0x0a50,  0x3a33,  0x2a12,
+    0xdbfd,  0xcbdc,  0xfbbf,  0xeb9e,  0x9b79,  0x8b58,  0xbb3b,  0xab1a,
+    0x6ca6,  0x7c87,  0x4ce4,  0x5cc5,  0x2c22,  0x3c03,  0x0c60,  0x1c41,
+    0xedae,  0xfd8f,  0xcdec,  0xddcd,  0xad2a,  0xbd0b,  0x8d68,  0x9d49,
+    0x7e97,  0x6eb6,  0x5ed5,  0x4ef4,  0x3e13,  0x2e32,  0x1e51,  0x0e70,
+    0xff9f,  0xefbe,  0xdfdd,  0xcffc,  0xbf1b,  0xaf3a,  0x9f59,  0x8f78,
+    0x9188,  0x81a9,  0xb1ca,  0xa1eb,  0xd10c,  0xc12d,  0xf14e,  0xe16f,
+    0x1080,  0x00a1,  0x30c2,  0x20e3,  0x5004,  0x4025,  0x7046,  0x6067,
+    0x83b9,  0x9398,  0xa3fb,  0xb3da,  0xc33d,  0xd31c,  0xe37f,  0xf35e,
+    0x02b1,  0x1290,  0x22f3,  0x32d2,  0x4235,  0x5214,  0x6277,  0x7256,
+    0xb5ea,  0xa5cb,  0x95a8,  0x8589,  0xf56e,  0xe54f,  0xd52c,  0xc50d,
+    0x34e2,  0x24c3,  0x14a0,  0x0481,  0x7466,  0x6447,  0x5424,  0x4405,
+    0xa7db,  0xb7fa,  0x8799,  0x97b8,  0xe75f,  0xf77e,  0xc71d,  0xd73c,
+    0x26d3,  0x36f2,  0x0691,  0x16b0,  0x6657,  0x7676,  0x4615,  0x5634,
+    0xd94c,  0xc96d,  0xf90e,  0xe92f,  0x99c8,  0x89e9,  0xb98a,  0xa9ab,
+    0x5844,  0x4865,  0x7806,  0x6827,  0x18c0,  0x08e1,  0x3882,  0x28a3,
+    0xcb7d,  0xdb5c,  0xeb3f,  0xfb1e,  0x8bf9,  0x9bd8,  0xabbb,  0xbb9a,
+    0x4a75,  0x5a54,  0x6a37,  0x7a16,  0x0af1,  0x1ad0,  0x2ab3,  0x3a92,
+    0xfd2e,  0xed0f,  0xdd6c,  0xcd4d,  0xbdaa,  0xad8b,  0x9de8,  0x8dc9,
+    0x7c26,  0x6c07,  0x5c64,  0x4c45,  0x3ca2,  0x2c83,  0x1ce0,  0x0cc1,
+    0xef1f,  0xff3e,  0xcf5d,  0xdf7c,  0xaf9b,  0xbfba,  0x8fd9,  0x9ff8,
+    0x6e17,  0x7e36,  0x4e55,  0x5e74,  0x2e93,  0x3eb2,  0x0ed1,  0x1ef0
+};
+
+/*
+ * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell. 
+ *  NOTE: First srgument must be in range 0 to 255.
+ *        Second argument is referenced twice.
+ * 
+ * Programmers may incorporate any or all code into their programs, 
+ * giving proper credit within the source. Publication of the 
+ * source routines is permitted so long as proper credit is given 
+ * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg, 
+ * Omen Technology.
+ */
+
+#define updcrc16(cp, crc) ( crctab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp)
+
+/*
+ * Copyright (C) 1986 Gary S. Brown.  You may use this program, or
+ * code or tables extracted from it, as desired without restriction.
+ */
+
+/* First, the polynomial itself and its table of feedback terms.  The  */
+/* polynomial is                                                       */
+/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
+/* Note that we take it "backwards" and put the highest-order term in  */
+/* the lowest-order bit.  The X^32 term is "implied"; the LSB is the   */
+/* X^31 term, etc.  The X^0 term (usually shown as "+1") results in    */
+/* the MSB being 1.                                                    */
+
+/* Note that the usual hardware shift register implementation, which   */
+/* is what we're using (we're merely optimizing it by doing eight-bit  */
+/* chunks at a time) shifts bits into the lowest-order term.  In our   */
+/* implementation, that means shifting towards the right.  Why do we   */
+/* do it this way?  Because the calculated CRC must be transmitted in  */
+/* order from highest-order term to lowest-order term.  UARTs transmit */
+/* characters in order from LSB to MSB.  By storing the CRC this way,  */
+/* we hand it to the UART in the order low-byte to high-byte; the UART */
+/* sends each low-bit to hight-bit; and the result is transmission bit */
+/* by bit from highest- to lowest-order term without requiring any bit */
+/* shuffling on our part.  Reception works similarly.                  */
+
+/* The feedback terms table consists of 256, 32-bit entries.  Notes:   */
+/*                                                                     */
+/*     The table can be generated at runtime if desired; code to do so */
+/*     is shown later.  It might not be obvious, but the feedback      */
+/*     terms simply represent the results of eight shift/xor opera-    */
+/*     tions for all combinations of data and CRC register values.     */
+/*                                                                     */
+/*     The values must be right-shifted by eight bits by the "updcrc"  */
+/*     logic; the shift must be unsigned (bring in zeroes).  On some   */
+/*     hardware you could probably optimize the shift in assembler by  */
+/*     using byte-swap instructions.                                   */
+
+static unsigned long cr3tab[] = { /* CRC polynomial 0xedb88320 */
+0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
+0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
+0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
+0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
+0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
+0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
+0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
+0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
+0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
+0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
+0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
+0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
+0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
+0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
+0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
+0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
+0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
+0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
+#define updcrc32(b, c) (cr3tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF))
+
+/* End of crc.c */

components/utilities/zmodem/rz.c

@@ -34,8 +34,9 @@ void zr_start(char *path)
 {
     struct zfile *zf;
     rt_uint8_t n;
-	char ch;
+	char ch,*p,*q;
 	rt_err_t res = -RT_ERROR;
+
 	zf = rt_malloc(sizeof(struct zfile));
 	if (zf == RT_NULL)
 	{
@@ -45,30 +46,35 @@ void zr_start(char *path)
 	memset(zf, 0, sizeof(struct zfile));
     zf->fname = path;
 	zf->fd = -1;
-    rt_kprintf("\r\n");
-	res = zrec_files(zf);      
+	res = zrec_files(zf);   
+	p = zf->fname;
+	for (;;)
+	{
+		q = strstr(p,"/");
+		if (q == RT_NULL)  break;
+		p = q+1;
+	}	   
     if (res == RT_EOK)
     {		  
-        rt_kprintf("\b\b\bfile: %s                           \r\n",zf->fname+1);
+        rt_kprintf("\b\b\bfile: %s                           \r\n",p);
 		rt_kprintf("size: %ld bytes\r\n",zf->bytes_received);
 		rt_kprintf("receive completed.\r\n");
 		close(zf->fd);
 		rt_free(zf->fname);
-		rt_free(zf);
     }
     else
     {
-        rt_kprintf("\b\b\bfile: %s                           \r\n",zf->fname+1);
+        rt_kprintf("\b\b\bfile: %s                           \r\n",p);
 		rt_kprintf("size: 0 bytes\r\n");
 		rt_kprintf("receive failed.\r\n");
 		if (zf->fd >= 0)
 		{
 	        close(zf->fd);
 	        unlink(zf->fname);    /* remove this file */ 
-		}
-		rt_free(zf->fname);
-	    rt_free(zf);
+			rt_free(zf->fname);
+		}	
     }
+	rt_free(zf);
 	/* waiting,clear console buffer */
 	rt_thread_delay(RT_TICK_PER_SECOND/2);
 	while(1)                     
@@ -76,17 +82,16 @@ void zr_start(char *path)
 	   n=rt_device_read(shell->device, 0, &ch, 1);
 	   if (n == 0) break;
 	}
+
 	return ;
 }
 
-
-
-
 /* receiver init, wait for ack */
 static rt_err_t zrec_init(rt_uint8_t *rxbuf,struct zfile *zf)
 {
     rt_uint8_t err_cnt = 0;
 	rt_err_t res = -RT_ERROR;
+
 	for (;;) 
 	{
 		zput_pos(0L);
@@ -144,14 +149,15 @@ static rt_err_t zrec_files(struct zfile *zf)
 {
 	rt_uint8_t *rxbuf;
 	rt_err_t res = -RT_ERROR;
+
 	zinit_parameter();
 	rxbuf = rt_malloc(RX_BUFFER_SIZE*sizeof(rt_uint8_t));
 	if (rxbuf == RT_NULL)
 	{
-		 rt_kprintf("not enough memory\r\n");
+		 rt_kprintf("rxbuf: out of memory\r\n");
 		 return -RT_ERROR;
 	}
-	rt_kprintf("rz: ready...\r\n");	   /* here ready to receive things */
+	rt_kprintf("\r\nrz: ready...\r\n");	   /* here ready to receive things */
 	if ((res = zrec_init(rxbuf,zf))!= RT_EOK)
 	{
 	     rt_kprintf("\b\b\breceive init failed\r\n");
@@ -181,6 +187,7 @@ static rt_err_t zrec_file(rt_uint8_t *rxbuf,struct zfile *zf)
 {
 	rt_err_t res = - RT_ERROR;
 	rt_uint16_t err_cnt = 0;
+
 	do 
 	{
 		zput_pos(zf->bytes_received);
@@ -223,7 +230,6 @@ again:
 #ifdef ZDEBUG
              rt_kprintf("error code: sender cancelled \r\n");
 #endif
-			 unlink(zf->fname);
 			 zf->bytes_received = 0L;		 /* throw the received data */  
 		     return res;
 		case ZSKIP:
@@ -237,6 +243,7 @@ again:
 			continue;
 		}
 	} while(++err_cnt < 100);
+
 	return res;
 }
 
@@ -244,7 +251,7 @@ again:
 static rt_err_t zget_file_info(char *name,struct zfile *zf)
 {
 	char *p;
-	char *ftemp,*ptr;
+	char *full_path,*ptr;
 	rt_uint16_t i,len;
 	rt_err_t res  = -RT_ERROR;
 	struct statfs buf;
@@ -256,25 +263,27 @@ static rt_err_t zget_file_info(char *name,struct zfile *zf)
 	}
 	else
 	    len = strlen(zf->fname)+strlen(name)+2; 
-    ftemp = rt_malloc(len);
-    if (ftemp == RT_NULL)		 
+    full_path = rt_malloc(len);
+    if (full_path == RT_NULL)		 
 	{
 	    zsend_can();
-		rt_kprintf("\b\b\bftemp: out of memory\n");
+		rt_kprintf("\b\b\bfull_path: out of memory\n");
+		rt_free(full_path);
 		return -RT_ERROR;
 	}
-	memset(ftemp,0,len);
+	memset(full_path,0,len);
 
     for (i=0,ptr=zf->fname;i<len-strlen(name)-2;i++)
-		 ftemp[i] = *ptr++;
-    ftemp[len-strlen(name)-2] = '/';
+		 full_path[i] = *ptr++;
+    full_path[len-strlen(name)-2] = '/';
 	/* check if is a directory */
-	if ((zf->fd=open(ftemp, DFS_O_DIRECTORY,0)) < 0)	 
+	if ((zf->fd=open(full_path, DFS_O_DIRECTORY,0)) < 0)	 
 	{
 	    zsend_can();
 	    rt_kprintf("\b\b\bcan not open file:%s\r\n",zf->fname+1);
 		close(zf->fd);
 		zf->fd = -1;
+		rt_free(full_path);
 	    return res;
 	}
 	fstat(zf->fd, &finfo);
@@ -286,18 +295,23 @@ static rt_err_t zget_file_info(char *name,struct zfile *zf)
 	}
 	close(zf->fd);	   
 	/* get fullpath && file attributes */
-    strcat(ftemp,name);
-    zf->fname = ftemp;
+    strcat(full_path,name);
+    zf->fname = full_path;
 	p = strlen(name)+name+1;	   
 	sscanf((const char *)p, "%ld%lo%o", &zf->bytes_total,&zf->ctime,&zf->mode);
+#ifdef DFS_USING_WORKDIR
 	dfs_statfs(working_directory,&buf);
 	if (zf->bytes_total > (buf.f_blocks * buf.f_bfree))
 	{
 	    zsend_can();
 	    rt_kprintf("\b\b\bnot enough disk space\r\n");
 		zf->fd = -1;
+		rt_free(full_path);
 		return -RT_ERROR;  
 	}
+#else
+    buf = buf;
+#endif
 	zf->bytes_received   = 0L;
 	if ((zf->fd = open(zf->fname,DFS_O_CREAT|DFS_O_WRONLY,0)) < 0)	 /* create or replace exist file */
 	{
@@ -305,6 +319,7 @@ static rt_err_t zget_file_info(char *name,struct zfile *zf)
 	    rt_kprintf("\b\b\bcan not create file:%s \r\n",zf->fname);	
 		return -RT_ERROR;
 	}
+
 	return RT_EOK;
 }
 
@@ -312,6 +327,7 @@ static rt_err_t zget_file_info(char *name,struct zfile *zf)
 static rt_err_t zrec_file_data(rt_uint8_t *buf,struct zfile *zf)
 {
     rt_err_t res = -RT_ERROR;
+
 more_data:
 	res = zget_data(buf,RX_BUFFER_SIZE);
 	switch(res)
@@ -355,7 +371,6 @@ more_data:
 /* write file */
 static rt_err_t zwrite_file(rt_uint8_t *buf,rt_uint16_t size,struct zfile *zf)
 {
-//    return 0;
 	return (write(zf->fd,buf,size));
 }
 
@@ -363,6 +378,7 @@ static rt_err_t zwrite_file(rt_uint8_t *buf,rt_uint16_t size,struct zfile *zf)
 static void zrec_ack_bibi(void)
 {
 	rt_uint8_t i;
+
 	zput_pos(0L);
 	for (i=0;i<3;i++) 
 	{

components/utilities/zmodem/sz.c

@@ -39,30 +39,39 @@ void zs_start(char *path)
 {
     struct zfile *zf;
 	rt_err_t res = RT_ERROR;
-
+    char *p,*q;
 	zf = rt_malloc(sizeof(struct zfile));
 	if (zf == RT_NULL)
 	{
 	    rt_kprintf("zf: out of memory\r\n");
 		return;
 	}
+	rt_kprintf("\r\nsz: ready...\r\n");	   /* here ready to send things */
 	memset(zf, 0, sizeof(struct zfile));
     zf->fname = path;
 	zf->fd = -1;
 	res = zsend_files(zf);
-    if (!res)
+	p = zf->fname;
+	for (;;)
+	{
+		q = strstr(p,"/");
+		if (q == RT_NULL)  break;
+		p = q+1;
+	}
+    if (res == RT_EOK)
     {
         rt_kprintf("\r\nfile: %s \r\nsize: %ld bytes\r\nsend completed.\r\n",
-		          zf->fname+1,zf->bytes_received);
+		          p,zf->bytes_received);
     }
     else
     {
-        rt_kprintf("\r\nfile: %s \r\nsize: 0 bytes\r\nsend failed.\r\n",zf->fname+1);
+        rt_kprintf("\r\nfile: %s \r\nsize: 0 bytes\r\nsend failed.\r\n",p);
     }
 	rt_free(zf);
 
 	return;
 }
+
 /* init the parameters */
 static void zsend_init(void)
 {
@@ -94,6 +103,7 @@ static void zsend_init(void)
     /* send SINIT cmd */
 	return;
 }
+
 /* send files */
 static rt_err_t zsend_files(struct zfile *zf)
 {
@@ -147,7 +157,7 @@ static rt_err_t zsend_files(struct zfile *zf)
 	res = zsend_file(zf,TX_BUFFER, (p-(char*)TX_BUFFER)+strlen(p)+1);
 	zsay_bibi();
 	close(zf->fd);
-/*	unlink(path);   */
+ 
 	return res;
 }
 

components/utilities/zmodem/zdevice.c

@@ -63,7 +63,6 @@ rt_int16_t zread_line(rt_uint16_t timeout)
 	timeout/=5;
 	while (1)
 	{
-//     	if (rt_sem_take(&zmodem.zsem, RT_TICK_PER_SECOND*timeout) != RT_EOK) continue;
      	Line_left = rt_device_read(shell->device, 0, buf, 1);
 		if (Line_left)
 		{