xref: /onnv-gate/usr/src/lib/libsqlite/tool/showdb.c (revision 4520:7dbeadedd7fe)
1*4520Snw141292 
2*4520Snw141292 #pragma ident	"%Z%%M%	%I%	%E% SMI"
3*4520Snw141292 
4*4520Snw141292 /*
5*4520Snw141292 ** A utility for printing all or part of an SQLite database file.
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 static int pagesize = 1024;
17*4520Snw141292 static int db = -1;
18*4520Snw141292 static int mxPage = 0;
19*4520Snw141292 
out_of_memory(void)20*4520Snw141292 static void out_of_memory(void){
21*4520Snw141292   fprintf(stderr,"Out of memory...\n");
22*4520Snw141292   exit(1);
23*4520Snw141292 }
24*4520Snw141292 
print_page(int iPg)25*4520Snw141292 static print_page(int iPg){
26*4520Snw141292   unsigned char *aData;
27*4520Snw141292   int i, j;
28*4520Snw141292   aData = malloc(pagesize);
29*4520Snw141292   if( aData==0 ) out_of_memory();
30*4520Snw141292   lseek(db, (iPg-1)*pagesize, SEEK_SET);
31*4520Snw141292   read(db, aData, pagesize);
32*4520Snw141292   fprintf(stdout, "Page %d:\n", iPg);
33*4520Snw141292   for(i=0; i<pagesize; i += 16){
34*4520Snw141292     fprintf(stdout, " %03x: ",i);
35*4520Snw141292     for(j=0; j<16; j++){
36*4520Snw141292       fprintf(stdout,"%02x ", aData[i+j]);
37*4520Snw141292     }
38*4520Snw141292     for(j=0; j<16; j++){
39*4520Snw141292       fprintf(stdout,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
40*4520Snw141292     }
41*4520Snw141292     fprintf(stdout,"\n");
42*4520Snw141292   }
43*4520Snw141292   free(aData);
44*4520Snw141292 }
45*4520Snw141292 
main(int argc,char ** argv)46*4520Snw141292 int main(int argc, char **argv){
47*4520Snw141292   struct stat sbuf;
48*4520Snw141292   if( argc<2 ){
49*4520Snw141292     fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
50*4520Snw141292     exit(1);
51*4520Snw141292   }
52*4520Snw141292   db = open(argv[1], O_RDONLY);
53*4520Snw141292   if( db<0 ){
54*4520Snw141292     fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
55*4520Snw141292     exit(1);
56*4520Snw141292   }
57*4520Snw141292   fstat(db, &sbuf);
58*4520Snw141292   mxPage = sbuf.st_size/pagesize + 1;
59*4520Snw141292   if( argc==2 ){
60*4520Snw141292     int i;
61*4520Snw141292     for(i=1; i<=mxPage; i++) print_page(i);
62*4520Snw141292   }else{
63*4520Snw141292     int i;
64*4520Snw141292     for(i=2; i<argc; i++){
65*4520Snw141292       int iStart, iEnd;
66*4520Snw141292       char *zLeft;
67*4520Snw141292       iStart = strtol(argv[i], &zLeft, 0);
68*4520Snw141292       if( zLeft && strcmp(zLeft,"..end")==0 ){
69*4520Snw141292         iEnd = mxPage;
70*4520Snw141292       }else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
71*4520Snw141292         iEnd = strtol(&zLeft[2], 0, 0);
72*4520Snw141292       }else{
73*4520Snw141292         iEnd = iStart;
74*4520Snw141292       }
75*4520Snw141292       if( iStart<1 || iEnd<iStart || iEnd>mxPage ){
76*4520Snw141292         fprintf(stderr,
77*4520Snw141292           "Page argument should be LOWER?..UPPER?.  Range 1 to %d\n",
78*4520Snw141292           mxPage);
79*4520Snw141292         exit(1);
80*4520Snw141292       }
81*4520Snw141292       while( iStart<=iEnd ){
82*4520Snw141292         print_page(iStart);
83*4520Snw141292         iStart++;
84*4520Snw141292       }
85*4520Snw141292     }
86*4520Snw141292   }
87*4520Snw141292   close(db);
88*4520Snw141292 }
89