1 files changed, 86 insertions, 0 deletions
diff --git a/third_party/sqlite/tool/showdb.c b/third_party/sqlite/tool/showdb.c
new file mode 100755
index 0000000..b2ed562
--- /dev/null
+++ b/third_party/sqlite/tool/showdb.c
@@ -0,0 +1,86 @@
+/*
+** A utility for printing all or part of an SQLite database file.
+*/
+#include <stdio.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+
+static int pagesize = 1024;
+static int db = -1;
+static int mxPage = 0;
+static int perLine = 32;
+
+static void out_of_memory(void){
+  fprintf(stderr,"Out of memory...\n");
+  exit(1);
+}
+
+static print_page(int iPg){
+  unsigned char *aData;
+  int i, j;
+  aData = malloc(pagesize);
+  if( aData==0 ) out_of_memory();
+  lseek(db, (iPg-1)*pagesize, SEEK_SET);
+  read(db, aData, pagesize);
+  fprintf(stdout, "Page %d:\n", iPg);
+  for(i=0; i<pagesize; i += perLine){
+    fprintf(stdout, " %03x: ",i);
+    for(j=0; j<perLine; j++){
+      fprintf(stdout,"%02x ", aData[i+j]);
+    }
+    for(j=0; j<perLine; j++){
+      fprintf(stdout,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
+    }
+    fprintf(stdout,"\n");
+  }
+  free(aData);
+}
+
+int main(int argc, char **argv){
+  struct stat sbuf;
+  if( argc<2 ){
+    fprintf(stderr,"Usage: %s FILENAME ?PAGE? ...\n", argv[0]);
+    exit(1);
+  }
+  db = open(argv[1], O_RDONLY);
+  if( db<0 ){
+    fprintf(stderr,"%s: can't open %s\n", argv[0], argv[1]);
+    exit(1);
+  }
+  fstat(db, &sbuf);
+  mxPage = sbuf.st_size/pagesize + 1;
+  if( argc==2 ){
+    int i;
+    for(i=1; i<=mxPage; i++) print_page(i);
+  }else{
+    int i;
+    for(i=2; i<argc; i++){
+      int iStart, iEnd;
+      char *zLeft;
+      iStart = strtol(argv[i], &zLeft, 0);
+      if( zLeft && strcmp(zLeft,"..end")==0 ){
+        iEnd = mxPage;
+      }else if( zLeft && zLeft[0]=='.' && zLeft[1]=='.' ){
+        iEnd = strtol(&zLeft[2], 0, 0);
+      }else{
+        iEnd = iStart;
+      }
+      if( iStart<1 || iEnd<iStart || iEnd>mxPage ){
+        fprintf(stderr,
+          "Page argument should be LOWER?..UPPER?.  Range 1 to %d\n",
+          mxPage);
+        exit(1);
+      }
+      while( iStart<=iEnd ){
+        print_page(iStart);
+        iStart++;
+      }
+    }
+  }
+  close(db);
+}