-/*
- * Software License Agreement (BSD License)
- *
- * Copyright (c) 2010, Roel Verdult
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the copyright holders nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <stdio.h>
-#include <stdint.h>
-
-#define BLOCK_COUNT 7
-#define BLOCK_LENGTH 4
-#define BLOCK_TOTAL (BLOCK_COUNT*BLOCK_LENGTH)
-
-typedef unsigned char byte_t;
-
-int main(int argc, char *argv[])
-{
- FILE* pf;
- byte_t buf[BLOCK_TOTAL];
- uint32_t crc = 0;
- uint32_t block;
-
- // Check for required arguments
- if (argc < 2)
- {
- printf("syntax: lpcrc <firmware.bin>\n");
- return 1;
- }
-
- // Try to open the supplied firmware
- if ((pf = fopen(argv[1],"rb+")) == NULL)
- {
- printf("error: could not open file [%s] with write access\n",argv[1]);
- return 1;
- }
-
- // Read out the data blocks used for crc calculation
- if (fread(buf,1,BLOCK_TOTAL,pf) != BLOCK_TOTAL)
- {
- printf("error: could not read required bytes\n");
- fclose(pf);
- return 1;
- }
-
- // Compute the crc value
- for (block=0; block<BLOCK_COUNT; block++)
- {
- crc += *((uint32_t*)(buf+(block*BLOCK_LENGTH)));
- }
- crc = (~crc) + 1;
-
- // Reposition the file stream indicator to switch between read and write
- if (fseek(pf,0,SEEK_CUR) != 0)
- {
- printf("error: could not switch from read to write mode\n");
- fclose(pf);
- return 1;
- }
-
- // Write the crc back to the file
- if (fwrite((byte_t*)&crc,1,BLOCK_LENGTH,pf) != BLOCK_LENGTH)
- {
- printf("error: could not write crc back to file\n");
- fclose(pf);
- return 1;
- }
-
- printf("succesfully updated crc to: %08x\n",crc);
- fclose(pf);
-
- return 0;
-}
-
+/*\r
+ * Software License Agreement (BSD License)\r
+ *\r
+ * Copyright (c) 2010, Roel Verdult\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ * 3. Neither the name of the copyright holders nor the\r
+ * names of its contributors may be used to endorse or promote products\r
+ * derived from this software without specific prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY\r
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY\r
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\r
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ *\r
+ */\r
+\r
+#include <stdio.h>\r
+#include <stdint.h>\r
+\r
+#define BLOCK_COUNT 7\r
+#define BLOCK_LENGTH 4\r
+#define BLOCK_TOTAL (BLOCK_COUNT*BLOCK_LENGTH)\r
+\r
+typedef unsigned char byte_t;\r
+\r
+int main(int argc, char *argv[])\r
+{\r
+ FILE* pf;\r
+ byte_t buf[BLOCK_TOTAL];\r
+ uint32_t crc = 0;\r
+ uint32_t block;\r
+ \r
+ // Check for required arguments\r
+ if (argc < 2)\r
+ {\r
+ printf("syntax: lpcrc <firmware.bin>\n");\r
+ return 1;\r
+ }\r
+ \r
+ // Try to open the supplied firmware\r
+ if ((pf = fopen(argv[1],"rb+")) == NULL)\r
+ {\r
+ printf("error: could not open file [%s] with write access\n",argv[1]);\r
+ return 1;\r
+ }\r
+\r
+ // Read out the data blocks used for crc calculation\r
+ if (fread(buf,1,BLOCK_TOTAL,pf) != BLOCK_TOTAL)\r
+ {\r
+ printf("error: could not read required bytes\n");\r
+ fclose(pf);\r
+ return 1;\r
+ }\r
+\r
+ // Compute the crc value\r
+ for (block=0; block<BLOCK_COUNT; block++)\r
+ {\r
+ crc += *((uint32_t*)(buf+(block*BLOCK_LENGTH)));\r
+ }\r
+ crc = (~crc) + 1;\r
+ \r
+ // Reposition the file stream indicator to switch between read and write\r
+ if (fseek(pf,0,SEEK_CUR) != 0)\r
+ {\r
+ printf("error: could not switch from read to write mode\n");\r
+ fclose(pf);\r
+ return 1;\r
+ }\r
+ \r
+ // Write the crc back to the file\r
+ if (fwrite((byte_t*)&crc,1,BLOCK_LENGTH,pf) != BLOCK_LENGTH)\r
+ {\r
+ printf("error: could not write crc back to file\n");\r
+ fclose(pf);\r
+ return 1;\r
+ }\r
+\r
+ printf("succesfully updated crc to: %08x\n",crc);\r
+ fclose(pf);\r
+ \r
+ return 0;\r
+}\r
+\r
git.asbjorn.biz / rapper.git / blobdiff