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 } 48