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getidblock.c

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00001 
00002 #include "define.h"
00003 
00004 static void usage();
00005 
00006 int main(int argc, char* const* argv)
00007 {
00008     // pass the id number to display on the command line
00009     char *fname, *sid;
00010     pst_file pstfile;
00011     uint64_t id;
00012     int decrypt = 0, process = 0, binary = 0, c;
00013     char *buf = NULL;
00014     size_t readSize;
00015     pst_item *item;
00016     pst_desc_ll *ptr;
00017 
00018     DEBUG_INIT("getidblock.log");
00019     DEBUG_REGISTER_CLOSE();
00020     DEBUG_ENT("main");
00021 
00022     while ((c = getopt(argc, argv, "bdp")) != -1) {
00023         switch (c) {
00024             case 'b':
00025                 // enable binary output
00026                 binary = 1;
00027                 break;
00028             case 'd':
00029                 //enable decrypt
00030                 decrypt = 1;
00031                 break;
00032             case 'p':
00033                 // enable procesing of block
00034                 process = 1;
00035                 break;
00036             default:
00037                 usage();
00038                 exit(EXIT_FAILURE);
00039         }
00040     }
00041 
00042     if (optind + 1 >= argc) {
00043         // no more items on the cmd
00044         usage();
00045         exit(EXIT_FAILURE);
00046     }
00047     fname = argv[optind];
00048     sid   = argv[optind + 1];
00049     id    = (uint64_t)strtoll(sid, NULL, 0);
00050 
00051     DEBUG_MAIN(("Opening file\n"));
00052     memset(&pstfile, 0, sizeof(pstfile));
00053     if (pst_open(&pstfile, fname)) {
00054         DIE(("Error opening file\n"));
00055     }
00056 
00057     DEBUG_MAIN(("Loading Index\n"));
00058     if (pst_load_index(&pstfile) != 0) {
00059         DIE(("Error loading file index\n"));
00060     }
00061     //  if ((ptr = pst_getID(&pstfile, id)) == NULL) {
00062     //    DIE(("id not found [%#x]\n", id));
00063     //  }
00064 
00065     DEBUG_MAIN(("Loading block\n"));
00066 
00067     if ((readSize = pst_ff_getIDblock(&pstfile, id, &buf)) <= 0 || buf == NULL) {
00068         //      if ((readSize = pst_read_block_size(&pstfile, ptr->offset, ptr->size, &buf, 1, 1)) < ptr->size) {
00069         DIE(("Error loading block\n"));
00070     }
00071     if (binary == 0)
00072         printf("Block %#"PRIx64", size %#x[%i]\n", id, (unsigned int) readSize, (int) readSize);
00073 
00074     if (decrypt != 0)
00075         if (pst_decrypt(id, buf, readSize, (int) pstfile.encryption) != 0) {
00076             DIE(("Error decrypting block\n"));
00077         }
00078 
00079     DEBUG_MAIN(("Printing block... [id %#x, size %#x]\n", id, readSize));
00080     if (binary == 0) {
00081         pst_debug_hexdumper(stdout, buf, readSize, 0x10, 0);
00082     } else {
00083         if (fwrite(buf, 1, readSize, stdout) != 0) {
00084             DIE(("Error occured during writing of buf to stdout\n"));
00085         }
00086     }
00087     free(buf);
00088 
00089     if (process != 0) {
00090         DEBUG_MAIN(("Parsing block...\n"));
00091         ptr = pstfile.d_head;
00092         while (ptr != NULL) {
00093             if (ptr->list_index != NULL && ptr->list_index->id == id)
00094                 break;
00095             if (ptr->desc != NULL && ptr->desc->id == id)
00096                 break;
00097             ptr = pst_getNextDptr(ptr);
00098         }
00099         if (ptr == NULL) {
00100             ptr = (pst_desc_ll *) xmalloc(sizeof(pst_desc_ll));
00101             ptr->desc = pst_getID(&pstfile, id);
00102             ptr->list_index = NULL;
00103         }
00104         if (ptr != NULL) {
00105             if ((item = pst_parse_item(&pstfile, ptr)) != NULL)
00106                 pst_freeItem(item);
00107         } else {
00108             DEBUG_MAIN(("item not found with this ID\n"));
00109             printf("Cannot find the owning Record of this ID. Cannot parse\n");
00110         }
00111     }
00112 
00113     if (pst_close(&pstfile) != 0) {
00114         DIE(("pst_close failed\n"));
00115     }
00116 
00117     DEBUG_RET();
00118     return 0;
00119 }
00120 
00121 void usage()
00122 {
00123     printf("usage: getidblock [options] filename id\n");
00124     printf("\tfilename - name of the file to access\n");
00125     printf("\tid - ID of the block to fetch - can begin with 0x for hex\n");
00126     printf("\toptions\n");
00127     printf("\t\t-d\tDecrypt the block before printing\n");
00128     printf("\t\t-p\tProcess the block before finishing.\n");
00129     printf("\t\t\tView the debug log for information\n");
00130 }

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