1*4520Snw141292 
2*4520Snw141292 #pragma ident	"%Z%%M%	%I%	%E% SMI"
3*4520Snw141292 
4*4520Snw141292 /*
5*4520Snw141292 ** A utility for printing the differences between two SQLite database files.
6*4520Snw141292 */
7*4520Snw141292 #include <stdio.h>
8*4520Snw141292 #include <ctype.h>
9*4520Snw141292 #include <sys/types.h>
10*4520Snw141292 #include <sys/stat.h>
11*4520Snw141292 #include <fcntl.h>
12*4520Snw141292 #include <unistd.h>
13*4520Snw141292 #include <stdlib.h>
14*4520Snw141292 
15*4520Snw141292 
16*4520Snw141292 #define PAGESIZE 1024
17*4520Snw141292 static int db1 = -1;
18*4520Snw141292 static int db2 = -1;
19*4520Snw141292 
20*4520Snw141292 int main(int argc, char **argv){
21*4520Snw141292   int iPg;
22*4520Snw141292   unsigned char a1[PAGESIZE], a2[PAGESIZE];
23*4520Snw141292   if( argc!=3 ){
24*4520Snw141292     fprintf(stderr,"Usage: %s FILENAME FILENAME\n", argv[0]);
25*4520Snw141292     exit(1);
26*4520Snw141292   }
27*4520Snw141292   db1 = open(argv[1], O_RDONLY);
28*4520Snw141292   if( db1<0 ){
29*4520Snw141292     fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
30*4520Snw141292     exit(1);
31*4520Snw141292   }
32*4520Snw141292   db2 = open(argv[2], O_RDONLY);
33*4520Snw141292   if( db2<0 ){
34*4520Snw141292     fprintf(stderr,"%s: can't open %s\n", argv[0], argv[2]);
35*4520Snw141292     exit(1);
36*4520Snw141292   }
37*4520Snw141292   iPg = 1;
38*4520Snw141292   while( read(db1, a1, PAGESIZE)==PAGESIZE && read(db2,a2,PAGESIZE)==PAGESIZE ){
39*4520Snw141292     if( memcmp(a1,a2,PAGESIZE) ){
40*4520Snw141292       printf("Page %d\n", iPg);
41*4520Snw141292     }
42*4520Snw141292     iPg++;
43*4520Snw141292   }
44*4520Snw141292   printf("%d pages checked\n", iPg-1);
45*4520Snw141292   close(db1);
46*4520Snw141292   close(db2);
47*4520Snw141292 }
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