1 2 #pragma ident "%Z%%M% %I% %E% SMI" 3 4 /* 5 ** A utility for printing the differences between two SQLite database files. 6 */ 7 #include <stdio.h> 8 #include <ctype.h> 9 #include <sys/types.h> 10 #include <sys/stat.h> 11 #include <fcntl.h> 12 #include <unistd.h> 13 #include <stdlib.h> 14 15 16 #define PAGESIZE 1024 17 static int db1 = -1; 18 static int db2 = -1; 19 20 int main(int argc, char **argv){ 21 int iPg; 22 unsigned char a1[PAGESIZE], a2[PAGESIZE]; 23 if( argc!=3 ){ 24 fprintf(stderr,"Usage: %s FILENAME FILENAME\n", argv[0]); 25 exit(1); 26 } 27 db1 = open(argv[1], O_RDONLY); 28 if( db1<0 ){ 29 fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]); 30 exit(1); 31 } 32 db2 = open(argv[2], O_RDONLY); 33 if( db2<0 ){ 34 fprintf(stderr,"%s: can't open %s\n", argv[0], argv[2]); 35 exit(1); 36 } 37 iPg = 1; 38 while( read(db1, a1, PAGESIZE)==PAGESIZE && read(db2,a2,PAGESIZE)==PAGESIZE ){ 39 if( memcmp(a1,a2,PAGESIZE) ){ 40 printf("Page %d\n", iPg); 41 } 42 iPg++; 43 } 44 printf("%d pages checked\n", iPg-1); 45 close(db1); 46 close(db2); 47 } 48