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path: root/src/Common/libzip/zip_source_seek_write.c
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Diffstat (limited to 'src/Common/libzip/zip_source_seek_write.c')
-rw-r--r--src/Common/libzip/zip_source_seek_write.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/Common/libzip/zip_source_seek_write.c b/src/Common/libzip/zip_source_seek_write.c
index 4ecbee18..34ae2f5a 100644
--- a/src/Common/libzip/zip_source_seek_write.c
+++ b/src/Common/libzip/zip_source_seek_write.c
@@ -1,9 +1,9 @@
/*
zip_source_seek_write.c -- seek to offset for writing
- Copyright (C) 2014 Dieter Baron and Thomas Klausner
+ Copyright (C) 2014-2021 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP archives.
- The authors can be contacted at <libzip@nih.at>
+ The authors can be contacted at <info@libzip.org>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -39,9 +39,14 @@ ZIP_EXTERN int
zip_source_seek_write(zip_source_t *src, zip_int64_t offset, int whence) {
zip_source_args_seek_t args;
+ if (ZIP_SOURCE_IS_LAYERED(src)) {
+ zip_error_set(&src->error, ZIP_ER_OPNOTSUPP, 0);
+ return -1;
+ }
+
if (!ZIP_SOURCE_IS_OPEN_WRITING(src) || (whence != SEEK_SET && whence != SEEK_CUR && whence != SEEK_END)) {
- zip_error_set(&src->error, ZIP_ER_INVAL, 0);
- return -1;
+ zip_error_set(&src->error, ZIP_ER_INVAL, 0);
+ return -1;
}
args.offset = offset;