#include <stdio.h>
#include <string.h>

static int read_ss(char *filename);
static void showusage();

int main(int args, char *argv[])
{
   char *ifilename = NULL;

   printf("analss -- written by devin smith\n");
   printf("================================\n");

   if(args < 2)
   {
      showusage();
      return -1;
   }

   ifilename = argv[1];

   read_ss(ifilename);
   return 0;
}

static void showusage()
{
   printf("Please specify arguments in the form of:\n");
   printf("analss file\n");
   printf("   where \"file\" is a source safe index file.\n");
}

static int read_ss(char *filename)
{
   FILE *fp;
   fp = fopen(filename, "rb");
   char magic[21];
   unsigned char type;
   char unknown[12];
   char buff[128];
   char ssfilename[128];
   int i = 0;
   if(!fp)
   {
      perror("Error opening SourceSafe file");
      return -1;
   }
   
   fread(magic, 1, 20, fp);
   magic[20] = 0; /* terminate it */
   printf("Reading %s.\n",filename);
   if(strcmp(magic, "SourceSafe@Microsoft") != 0)
   {
      printf("Not a SourceSafe file");
      fclose(fp);
      return -2;
   }
   fread(unknown, 1, 12, fp);
   type = fgetc(fp);
   if(type == 0x02)
      printf("[0x20] Type: File\n");
   else /* other possible type is 0x01 */
      printf("[0x20] Type: Directory\n");
   fgetc(fp); /* another unknown */
   printf("[0x22] Unknown: 0x%X\n", fgetc(fp));
   fread(buff, 1, 17, fp);
   printf("[0x34] Unknown: 0x%X\n", fgetc(fp));
   printf("[0x35] Unknown: 0x%X\n", fgetc(fp));
   fread(buff, 1, 2, fp);
   printf("[0x38] Unknown: 0x%X\n", fgetc(fp));
   printf("[0x39] Unknown: 0x%X\n", fgetc(fp));
   printf("[0x3A] Unknown: 0x%X\n", fgetc(fp));
   printf("[0x3B] Unknown: 0x%X\n", fgetc(fp));
   printf("[0x3C] Unknown: 0x%X\n", fgetc(fp));
   fgetc(fp);
   printf("[0x3E] Unknown: 0x%X\n", fgetc(fp));
   fread(buff, 1, 3, fp);
   while((ssfilename[i++] = fgetc(fp)) != 0);
   printf("Filename: %s\n", ssfilename);
   fclose(fp);
}