diff options
Diffstat (limited to 'src/Common/libzip/zip_source_seek_write.c')
| -rw-r--r-- | src/Common/libzip/zip_source_seek_write.c | 13 |
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 6b0aa78e..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) 2014-2019 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; |