Fix zstd bug

1 files changed, 5 insertions, 5 deletions

diff --git a/lib/extract.c b/lib/extract.c
index 9fd2496..dfb7223 100644
--- a/lib/extract.c
+++ b/lib/extract.c
@@ -33,18 +33,18 @@ static int nfl_extract_default(FILE *f, nflog_state_t *state) {
 static int nfl_extract_zstd(FILE *f, nflog_state_t *state) {
     char *buf;
     size_t const compressed_size = nfl_get_filesize(f) - sizeof(nflog_header_t),
-                 estimate_decom_size = ZSTD_findDecompressedSize(state->store, compressed_size),
                  expected_decom_size = state->header->n_entries * sizeof(nflog_entry_t);
 
+    ERR(!(buf = malloc(compressed_size)), "zstd: cannot malloc");
+    fread(buf, compressed_size, 1, f);
+    WARN_RETURN(ferror(f), "%s", strerror(errno));
+
+    size_t const estimate_decom_size = ZSTD_findDecompressedSize(buf, compressed_size);
     if (estimate_decom_size == ZSTD_CONTENTSIZE_ERROR)
         FATAL("zstd: file was not compressed by zstd.\n");
     else if (estimate_decom_size == ZSTD_CONTENTSIZE_UNKNOWN)
         FATAL("zstd: original size unknown. Use streaming decompression instead");
 
-    ERR(!(buf = malloc(compressed_size)), "zstd: cannot malloc");
-    fread(buf, compressed_size, 1, f);
-    WARN_RETURN(ferror(f), "%s", strerror(errno));
-
     size_t const actual_decom_size =
         ZSTD_decompress(state->store, expected_decom_size, buf, compressed_size);