1*c5c4113dSnw141292 /*
2*c5c4113dSnw141292 ** A utility for printing all or part of an SQLite database file.
3*c5c4113dSnw141292 */
4*c5c4113dSnw141292 #include <stdio.h>
5*c5c4113dSnw141292 #include <ctype.h>
6*c5c4113dSnw141292 #include <sys/types.h>
7*c5c4113dSnw141292 #include <sys/stat.h>
8*c5c4113dSnw141292 #include <fcntl.h>
9*c5c4113dSnw141292 #include <unistd.h>
10*c5c4113dSnw141292 #include <stdlib.h>
11*c5c4113dSnw141292
12*c5c4113dSnw141292
13*c5c4113dSnw141292 static int pagesize = 1024;
14*c5c4113dSnw141292 static int db = -1;
15*c5c4113dSnw141292 static int mxPage = 0;
16*c5c4113dSnw141292
out_of_memory(void)17*c5c4113dSnw141292 static void out_of_memory(void){
18*c5c4113dSnw141292 fprintf(stderr,"Out of memory...\n");
19*c5c4113dSnw141292 exit(1);
20*c5c4113dSnw141292 }
21*c5c4113dSnw141292
print_page(int iPg)22*c5c4113dSnw141292 static print_page(int iPg){
23*c5c4113dSnw141292 unsigned char *aData;
24*c5c4113dSnw141292 int i, j;
25*c5c4113dSnw141292 aData = malloc(pagesize);
26*c5c4113dSnw141292 if( aData==0 ) out_of_memory();
27*c5c4113dSnw141292 lseek(db, (iPg-1)*pagesize, SEEK_SET);
28*c5c4113dSnw141292 read(db, aData, pagesize);
29*c5c4113dSnw141292 fprintf(stdout, "Page %d:\n", iPg);
30*c5c4113dSnw141292 for(i=0; i<pagesize; i += 16){
31*c5c4113dSnw141292 fprintf(stdout, " %03x: ",i);
32*c5c4113dSnw141292 for(j=0; j<16; j++){
33*c5c4113dSnw141292 fprintf(stdout,"%02x ", aData[i+j]);
34*c5c4113dSnw141292 }
35*c5c4113dSnw141292 for(j=0; j<16; j++){
36*c5c4113dSnw141292 fprintf(stdout,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
37*c5c4113dSnw141292 }
38*c5c4113dSnw141292 fprintf(stdout,"\n");
39*c5c4113dSnw141292 }
40*c5c4113dSnw141292 free(aData);
41*c5c4113dSnw141292 }
42*c5c4113dSnw141292
main(int argc,char ** argv)43*c5c4113dSnw141292 int main(int argc, char **argv){
44*c5c4113dSnw141292 struct stat sbuf;
45*c5c4113dSnw141292 if( argc<2 ){
46*c5c4113dSnw141292 fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
47*c5c4113dSnw141292 exit(1);
48*c5c4113dSnw141292 }
49*c5c4113dSnw141292 db = open(argv[1], O_RDONLY);
50*c5c4113dSnw141292 if( db<0 ){
51*c5c4113dSnw141292 fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
52*c5c4113dSnw141292 exit(1);
53*c5c4113dSnw141292 }
54*c5c4113dSnw141292 fstat(db, &sbuf);
55*c5c4113dSnw141292 mxPage = sbuf.st_size/pagesize + 1;
56*c5c4113dSnw141292 if( argc==2 ){
57*c5c4113dSnw141292 int i;
58*c5c4113dSnw141292 for(i=1; i<=mxPage; i++) print_page(i);
59*c5c4113dSnw141292 }else{
60*c5c4113dSnw141292 int i;
61*c5c4113dSnw141292 for(i=2; i<argc; i++){
62*c5c4113dSnw141292 int iStart, iEnd;
63*c5c4113dSnw141292 char *zLeft;
64*c5c4113dSnw141292 iStart = strtol(argv[i], &zLeft, 0);
65*c5c4113dSnw141292 if( zLeft && strcmp(zLeft,"..end")==0 ){
66*c5c4113dSnw141292 iEnd = mxPage;
67*c5c4113dSnw141292 }else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
68*c5c4113dSnw141292 iEnd = strtol(&zLeft[2], 0, 0);
69*c5c4113dSnw141292 }else{
70*c5c4113dSnw141292 iEnd = iStart;
71*c5c4113dSnw141292 }
72*c5c4113dSnw141292 if( iStart<1 || iEnd<iStart || iEnd>mxPage ){
73*c5c4113dSnw141292 fprintf(stderr,
74*c5c4113dSnw141292 "Page argument should be LOWER?..UPPER?. Range 1 to %d\n",
75*c5c4113dSnw141292 mxPage);
76*c5c4113dSnw141292 exit(1);
77*c5c4113dSnw141292 }
78*c5c4113dSnw141292 while( iStart<=iEnd ){
79*c5c4113dSnw141292 print_page(iStart);
80*c5c4113dSnw141292 iStart++;
81*c5c4113dSnw141292 }
82*c5c4113dSnw141292 }
83*c5c4113dSnw141292 }
84*c5c4113dSnw141292 close(db);
85*c5c4113dSnw141292 }
86