dont check tEXt, zTXt chunk text fields in default mode

randy408 · Aug 14, 2020 · db86b2c · db86b2c
2 parents 7a2ac10 + 367a856
commit db86b2c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/spng/spng.c b/spng/spng.c
@@ -2195,7 +2195,11 @@ static int read_non_idat_chunks(spng_ctx *ctx)
  language_tag_offset = keyword_len;
  translated_keyword_offset = keyword_len;
 
- if(check_png_text(text->text, text->text_length)) return SPNG_ETEXT;
+ if(ctx->strict && check_png_text(text->text, text->text_length))
+ {
+ if(text->type == SPNG_ZTXT) return SPNG_EZTXT;
+ else return SPNG_ETEXT;
+ }
  }
 
  text->language_tag = text->keyword + language_tag_offset;