diff options
Diffstat (limited to 'pngread.c')
-rw-r--r-- | pngread.c | 18 |
1 files changed, 12 insertions, 6 deletions
@@ -100,16 +100,22 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - if (user_png_ver) + if (user_png_ver != NULL) { - i = 0; + int found_dots = 0; + i = -1; + do { - if (user_png_ver[i] != png_libpng_ver[i]) + i++; + if (user_png_ver[i] != PNG_LIBPNG_VER_STRING[i]) png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - } - else + if (user_png_ver[i] == '.') + found_dots++; + } while (found_dots < 2 && user_png_ver[i] != 0 && + PNG_LIBPNG_VER_STRING[i] != 0); + } + else png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; |