From faa2d8a68c3377d12bbaf1560cba9cb909007d6f Mon Sep 17 00:00:00 2001
From: simon987 <me@simon987.net>
Date: Mon, 20 Apr 2020 10:15:06 -0400
Subject: [PATCH] Bug fix w/ libmagic & vfile

---
 libscan/arc/arc.c | 5 +++++
 libscan/scan.h    | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/libscan/arc/arc.c b/libscan/arc/arc.c
index 04c7179..89b8ac6 100644
--- a/libscan/arc/arc.c
+++ b/libscan/arc/arc.c
@@ -37,6 +37,10 @@ int arc_read(struct vfile *f, void *buf, size_t size) {
     return archive_read_data(f->arc, buf, size);
 }
 
+void arc_reset(struct vfile *f) {
+    archive_seek_data(f->arc, 0, SEEK_SET);
+}
+
 typedef struct arc_data {
     vfile_t *f;
     char buf[ARC_BUF_SIZE];
@@ -134,6 +138,7 @@ scan_code_t parse_archive(scan_arc_ctx_t *ctx, vfile_t *f, document_t *doc) {
 
         sub_job->vfile.close = NULL;
         sub_job->vfile.read = arc_read;
+        sub_job->vfile.reset = arc_reset;
         sub_job->vfile.arc = a;
         sub_job->vfile.filepath = sub_job->filepath;
         sub_job->vfile.is_fs_file = FALSE;
diff --git a/libscan/scan.h b/libscan/scan.h
index be2c1bd..12968eb 100644
--- a/libscan/scan.h
+++ b/libscan/scan.h
@@ -108,6 +108,8 @@ typedef int (*read_func_t)(struct vfile *, void *buf, size_t size);
 
 typedef void (*close_func_t)(struct vfile *);
 
+typedef void (*reset_func_t)(struct vfile *);
+
 typedef struct vfile {
     union {
         int fd;
@@ -121,6 +123,7 @@ typedef struct vfile {
 
     read_func_t read;
     close_func_t close;
+    reset_func_t reset;
 } vfile_t;
 
 typedef struct parse_job_t {