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https://github.com/mdbtools/mdbtools.git
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87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/* utility program to make a hex dump of a binary file (such as a mdb file) */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <netdb.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <time.h>
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#include <limits.h>
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#include <assert.h>
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#include <ctype.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <string.h>
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int main(int argc, char **argv)
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{
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long i=0;
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int j;
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unsigned char data[17];
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FILE *in;
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int length;
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int pg=0;
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char addr[10];
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int jet4 = 0;
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int pg_size = 2048;
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if (argc < 1) {
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fprintf(stderr, "Usage: mdb-dump <filename> [<page number>]\n\n");
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exit(1);
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}
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if (argc>2) {
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if (!strncmp(argv[2],"0x",2)) {
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for (i=2;i<strlen(argv[2]);i++) {
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pg *= 16;
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//if (islower(argv[2][i]))
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//argv[2][i] += 0x20;
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printf("char %c\n", (int)argv[2][i]);
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pg += argv[2][i] > '9' ? argv[2][i] - 'a' + 10 : argv[2][i] - '0';
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}
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} else {
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pg = atol(argv[2]);
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}
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}
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printf("page num %d\n", pg);
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if ((in = fopen(argv[1],"r"))==NULL) {
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fprintf(stderr, "Couldn't open file %s\n", argv[1]);
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exit(1);
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}
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fseek(in,0x14,SEEK_SET);
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fread(data,1,1,in);
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if (data[0]==0x01) {
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jet4 = 1;
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pg_size = 4096;
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}
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fseek(in,(pg*pg_size),SEEK_SET);
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i = 0;
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while ((length = fread(data,1,16,in))) {
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sprintf(addr, "%06lx", i);
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//if (!strcmp(&addr[3],"000") || (!jet4 && !strcmp(&addr[3],"800")) &&
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//pg) break;
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if (!strcmp(&addr[3],"000") || (!jet4 && !strcmp(&addr[3],"800"))) {
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fprintf(stdout,"-- Page 0x%04x (%d) --\n", pg, pg);
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pg++;
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}
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fprintf(stdout,"%s ", addr);
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i+=length;
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for(j=0; j<length; j++) {
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fprintf(stdout, "%02x ", data[j]);
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}
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fprintf(stdout, " |");
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for(j=0; j<length; j++) {
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fprintf(stdout, "%c", (isprint(data[j])) ? data[j] : '.');
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}
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fprintf(stdout, "|\n");
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}
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exit(0);
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}
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