diff --git a/libscan/arc/arc.c b/libscan/arc/arc.c
index e23c67c..eeb0d07 100644
--- a/libscan/arc/arc.c
+++ b/libscan/arc/arc.c
@@ -39,6 +39,10 @@ int arc_read(struct vfile *f, void *buf, size_t size) {
     size_t read = archive_read_data(f->arc, buf, size);
 
     if (read != size) {
+        const char* error_str = archive_error_string(f->arc);
+        if (error_str != NULL) {
+            f->logf(f->filepath, LEVEL_ERROR, "Error reading archive file: %s", error_str);
+        }
         return -1;
     }
 
@@ -119,6 +123,8 @@ scan_code_t parse_archive(scan_arc_ctx_t *ctx, vfile_t *f, document_t *doc) {
         sub_job->vfile.arc = a;
         sub_job->vfile.filepath = sub_job->filepath;
         sub_job->vfile.is_fs_file = FALSE;
+        sub_job->vfile.log = ctx->log;
+        sub_job->vfile.logf = ctx->logf;
         memcpy(sub_job->parent, doc->uuid, sizeof(uuid_t));
 
         while (archive_read_next_header(a, &entry) == ARCHIVE_OK) {
diff --git a/libscan/ebook/ebook.c b/libscan/ebook/ebook.c
index dd8a831..9f9edee 100644
--- a/libscan/ebook/ebook.c
+++ b/libscan/ebook/ebook.c
@@ -397,6 +397,11 @@ void parse_ebook_mem(scan_ebook_ctx_t *ctx, void* buf, size_t buf_len, const cha
 void parse_ebook(scan_ebook_ctx_t *ctx, vfile_t *f, const char* mime_str,  document_t *doc) {
     size_t buf_len;
     void * buf = read_all(f, &buf_len);
+    if (buf == NULL) {
+        CTX_LOG_ERROR(f->filepath, "read_all() failed")
+        return;
+    }
+
     parse_ebook_mem(ctx, buf, buf_len, mime_str, doc);
     free(buf);
 }
diff --git a/libscan/font/font.c b/libscan/font/font.c
index 85e5462..ce2203f 100644
--- a/libscan/font/font.c
+++ b/libscan/font/font.c
@@ -145,8 +145,8 @@ void parse_font(scan_font_ctx_t *ctx, vfile_t *f, document_t *doc) {
 
     size_t buf_len = 0;
     void * buf = read_all(f, &buf_len);
-
     if (buf == NULL) {
+        CTX_LOG_ERROR(f->filepath, "read_all() failed")
         return;
     }
 
diff --git a/libscan/mobi/scan_mobi.c b/libscan/mobi/scan_mobi.c
index 87a4bc5..40d3de2 100644
--- a/libscan/mobi/scan_mobi.c
+++ b/libscan/mobi/scan_mobi.c
@@ -14,6 +14,11 @@ void parse_mobi(scan_mobi_ctx_t *ctx, vfile_t *f, document_t *doc) {
 
     size_t buf_len;
     char* buf = read_all(f, &buf_len);
+    if (buf == NULL) {
+        mobi_free(m);
+        CTX_LOG_ERROR(f->filepath, "read_all() failed")
+        return;
+    }
 
     FILE *file = fmemopen(buf, buf_len, "rb");
     if (file == NULL) {
diff --git a/libscan/ooxml/ooxml.c b/libscan/ooxml/ooxml.c
index 4321b41..f35673c 100644
--- a/libscan/ooxml/ooxml.c
+++ b/libscan/ooxml/ooxml.c
@@ -166,6 +166,10 @@ void parse_ooxml(scan_ooxml_ctx_t *ctx, vfile_t *f, document_t *doc) {
 
     size_t buf_len;
     void *buf = read_all(f, &buf_len);
+    if (buf == NULL) {
+        CTX_LOG_ERROR(f->filepath, "read_all() failed")
+        return;
+    }
 
     struct archive *a = archive_read_new();
     archive_read_support_format_zip(a);
diff --git a/libscan/raw/raw.c b/libscan/raw/raw.c
index 83d2dca..dd775a5 100644
--- a/libscan/raw/raw.c
+++ b/libscan/raw/raw.c
@@ -91,6 +91,10 @@ void parse_raw(scan_raw_ctx_t *ctx, vfile_t *f, document_t *doc) {
 
     size_t buf_len = 0;
     void *buf = read_all(f, &buf_len);
+    if (buf == NULL) {
+        CTX_LOG_ERROR(f->filepath, "read_all() failed")
+        return;
+    }
 
     int ret = libraw_open_buffer(libraw_lib, buf, buf_len);
     if (ret != 0) {
diff --git a/libscan/scan.h b/libscan/scan.h
index c05a334..fcf31f6 100644
--- a/libscan/scan.h
+++ b/libscan/scan.h
@@ -23,6 +23,9 @@
 #define IS_META_LONG(key) (key & META_LONG_MASK) == META_LONG_MASK
 #define IS_META_STR(meta) (meta->key & META_STR_MASK) == META_STR_MASK
 
+typedef void (*store_callback_t)(char *key, size_t key_len, char *buf, size_t buf_len);
+typedef void (*logf_callback_t)(const char *filepath, int level, char *format, ...);
+typedef void (*log_callback_t)(const char *filepath, int level, char *str);
 
 typedef int scan_code_t;
 #define SCAN_OK (scan_code_t) 0
@@ -130,6 +133,8 @@ typedef struct vfile {
     seek_func_t seek;
     close_func_t close;
     reset_func_t reset;
+    log_callback_t log;
+    logf_callback_t logf;
 } vfile_t;
 
 typedef struct parse_job_t {
@@ -153,9 +158,6 @@ typedef struct parse_job_t {
 
 #include "util.h"
 
-typedef void (*store_callback_t)(char *key, size_t key_len, char *buf, size_t buf_len);
-typedef void (*logf_callback_t)(const char *filepath, int level, char *format, ...);
-typedef void (*log_callback_t)(const char *filepath, int level, char *str);
 typedef void (*parse_callback_t)(parse_job_t *job);
 
 #endif