BizHawk/miniz/example2.c

// example2.c - Simple demonstration of miniz.c's ZIP archive API's.
// Public domain, May 15 2011, Rich Geldreich, richgel99@gmail.com. See "unlicense" statement at the end of tinfl.c.
#include "miniz.c"

typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint;

// The string to compress.
static const char *s_pStr =
"MISSION CONTROL I wouldn't worry too much about the computer. First of all, there is still a chance that he is right, despite your tests, and" \
"if it should happen again, we suggest eliminating this possibility by allowing the unit to remain in place and seeing whether or not it" \
"actually fails. If the computer should turn out to be wrong, the situation is still not alarming. The type of obsessional error he may be" \
"guilty of is not unknown among the latest generation of HAL 9000 computers. It has almost always revolved around a single detail, such as" \
"the one you have described, and it has never interfered with the integrity or reliability of the computer's performance in other areas." \
"No one is certain of the cause of this kind of malfunctioning. It may be over-programming, but it could also be any number of reasons. In any" \
"event, it is somewhat analogous to human neurotic behavior. Does this answer your query?  Zero-five-three-Zero, MC, transmission concluded.";

static const char *s_pComment = "This is a comment";

int main(int argc, char *argv[])
{
   uint i;
   mz_bool status;
   size_t uncomp_size;
   mz_zip_archive zip_archive;
   void *p;

   printf("miniz.c version: %s\n", MZ_VERSION);

   (void)argc, (void)argv;

  // Append a bunch of text files to test.zip
  for (i = 0; i < 50; i++)
  {
    char archive_filename[64];
    sprintf(archive_filename, "%u.txt", i);
    status = mz_zip_add_mem_to_archive_file_in_place("test.zip", archive_filename, s_pStr, strlen(s_pStr), s_pComment, (uint16)strlen(s_pComment), MZ_BEST_COMPRESSION);
    if (!status)
    {
      printf("mz_zip_add_mem_to_archive_file_in_place failed!\n");
      return EXIT_FAILURE;
    }
  }
  
   // Now try to open the archive.
   memset(&zip_archive, 0, sizeof(zip_archive));
   status = mz_zip_reader_init_file(&zip_archive, "test.zip", 0);
   if (!status)
   {
      printf("mz_zip_reader_init_file() failed!\n");
      return EXIT_FAILURE;
   }

   // Get and print information about each file in the archive.
   for (i = 0; i < mz_zip_reader_get_num_files(&zip_archive); i++)
   {
      mz_zip_archive_file_stat file_stat;
      if (!mz_zip_reader_file_stat(&zip_archive, i, &file_stat))
      {
         printf("mz_zip_reader_file_stat() failed!\n");
         mz_zip_reader_end(&zip_archive);
         return EXIT_FAILURE;
      }

      printf("Filename: \"%s\", Comment: \"%s\", Uncompressed size: %u, Compressed size: %u\n", file_stat.m_filename, file_stat.m_comment, (uint)file_stat.m_uncomp_size, (uint)file_stat.m_comp_size);
   }

  // Try to extract 0.txt to the heap.
  p = mz_zip_reader_extract_file_to_heap(&zip_archive, "0.txt", &uncomp_size, 0);
  if (!p)
  {
    printf("mz_zip_reader_extract_file_to_heap() failed!\n");
    mz_zip_reader_end(&zip_archive);
    return EXIT_FAILURE;
  }
    
  // Make sure the extraction really succeeded.
  if ((uncomp_size != strlen(s_pStr)) || (memcmp(p, s_pStr, strlen(s_pStr))))
  {
    printf("mz_zip_reader_extract_file_to_heap() failed to extract the proper data\n");
    free(p);
    mz_zip_reader_end(&zip_archive);
    return EXIT_FAILURE;
  }

  printf("Successfully extracted file \"0.txt\", size %u\n", (uint)uncomp_size);

   // We're done.
   free(p);
   mz_zip_reader_end(&zip_archive);

   printf("Success.\n");
   return EXIT_SUCCESS;
}