diff options
Diffstat (limited to 'src/Common/libzip/zip_source_seek_write.c')
| -rw-r--r-- | src/Common/libzip/zip_source_seek_write.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/Common/libzip/zip_source_seek_write.c b/src/Common/libzip/zip_source_seek_write.c index 66607664..34ae2f5a 100644 --- a/src/Common/libzip/zip_source_seek_write.c +++ b/src/Common/libzip/zip_source_seek_write.c @@ -1,10 +1,10 @@ /* 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 are met: @@ -16,9 +16,9 @@ distribution. 3. The names of the authors may not be used to endorse or promote products derived from this software without specific prior written permission. - + THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY @@ -35,18 +35,22 @@ #include "zipint.h" ZIP_EXTERN int -zip_source_seek_write(zip_source_t *src, zip_int64_t offset, int whence) -{ +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; } - + args.offset = offset; args.whence = whence; - + return (_zip_source_call(src, &args, sizeof(args), ZIP_SOURCE_SEEK_WRITE) < 0 ? -1 : 0); } |