87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
|
|
** A utility for printing all or part of an SQLite database file.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
|
|
|
|
static int pagesize = 1024;
|
|
static int db = -1;
|
|
static int mxPage = 0;
|
|
static int perLine = 32;
|
|
|
|
static void out_of_memory(void){
|
|
fprintf(stderr,"Out of memory...\n");
|
|
exit(1);
|
|
}
|
|
|
|
static print_page(int iPg){
|
|
unsigned char *aData;
|
|
int i, j;
|
|
aData = malloc(pagesize);
|
|
if( aData==0 ) out_of_memory();
|
|
lseek(db, (iPg-1)*pagesize, SEEK_SET);
|
|
read(db, aData, pagesize);
|
|
fprintf(stdout, "Page %d:\n", iPg);
|
|
for(i=0; i<pagesize; i += perLine){
|
|
fprintf(stdout, " %03x: ",i);
|
|
for(j=0; j<perLine; j++){
|
|
fprintf(stdout,"%02x ", aData[i+j]);
|
|
}
|
|
for(j=0; j<perLine; j++){
|
|
fprintf(stdout,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
|
|
}
|
|
fprintf(stdout,"\n");
|
|
}
|
|
free(aData);
|
|
}
|
|
|
|
int main(int argc, char **argv){
|
|
struct stat sbuf;
|
|
if( argc<2 ){
|
|
fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
|
|
exit(1);
|
|
}
|
|
db = open(argv[1], O_RDONLY);
|
|
if( db<0 ){
|
|
fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
|
|
exit(1);
|
|
}
|
|
fstat(db, &sbuf);
|
|
mxPage = sbuf.st_size/pagesize + 1;
|
|
if( argc==2 ){
|
|
int i;
|
|
for(i=1; i<=mxPage; i++) print_page(i);
|
|
}else{
|
|
int i;
|
|
for(i=2; i<argc; i++){
|
|
int iStart, iEnd;
|
|
char *zLeft;
|
|
iStart = strtol(argv[i], &zLeft, 0);
|
|
if( zLeft && strcmp(zLeft,"..end")==0 ){
|
|
iEnd = mxPage;
|
|
}else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
|
|
iEnd = strtol(&zLeft[2], 0, 0);
|
|
}else{
|
|
iEnd = iStart;
|
|
}
|
|
if( iStart<1 || iEnd<iStart || iEnd>mxPage ){
|
|
fprintf(stderr,
|
|
"Page argument should be LOWER?..UPPER?. Range 1 to %d\n",
|
|
mxPage);
|
|
exit(1);
|
|
}
|
|
while( iStart<=iEnd ){
|
|
print_page(iStart);
|
|
iStart++;
|
|
}
|
|
}
|
|
}
|
|
close(db);
|
|
}
|