diff options
Diffstat (limited to 'ext/zip/lib/zip_fread.c')
| -rw-r--r-- | ext/zip/lib/zip_fread.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/ext/zip/lib/zip_fread.c b/ext/zip/lib/zip_fread.c deleted file mode 100644 index aeb64c90fa..0000000000 --- a/ext/zip/lib/zip_fread.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - $NiH: zip_fread.c,v 1.21 2006/04/23 14:49:50 wiz Exp $ - - zip_fread.c -- read from file - Copyright (C) 1999, 2004, 2005 Dieter Baron and Thomas Klausner - - This file is part of libzip, a library to manipulate ZIP archives. - The authors can be contacted at <nih@giga.or.at> - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - 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 - DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER - IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN - IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - - - -#include "zip.h" -#include "zipint.h" - - - -ssize_t -zip_fread(struct zip_file *zf, void *outbuf, size_t toread) -{ - int ret; - size_t out_before, len; - int i; - - if (!zf) - return -1; - - if (zf->error.zip_err != 0) - return -1; - - if ((zf->flags & ZIP_ZF_EOF) || (toread == 0)) - return 0; - - if (zf->bytes_left == 0) { - zf->flags |= ZIP_ZF_EOF; - if (zf->flags & ZIP_ZF_CRC) { - if (zf->crc != zf->crc_orig) { - _zip_error_set(&zf->error, ZIP_ER_CRC, 0); - return -1; - } - } - return 0; - } - - if ((zf->flags & ZIP_ZF_DECOMP) == 0) { - ret = _zip_file_fillbuf(outbuf, toread, zf); - if (ret > 0) { - if (zf->flags & ZIP_ZF_CRC) - zf->crc = crc32(zf->crc, (Bytef *)outbuf, ret); - zf->bytes_left -= ret; - } - return ret; - } - - zf->zstr->next_out = (Bytef *)outbuf; - zf->zstr->avail_out = toread; - out_before = zf->zstr->total_out; - - /* endless loop until something has been accomplished */ - for (;;) { - ret = inflate(zf->zstr, Z_SYNC_FLUSH); - - switch (ret) { - case Z_OK: - case Z_STREAM_END: - /* all ok */ - /* Z_STREAM_END probably won't happen, since we didn't - have a header */ - len = zf->zstr->total_out - out_before; - if (len >= zf->bytes_left || len >= toread) { - if (zf->flags & ZIP_ZF_CRC) - zf->crc = crc32(zf->crc, (Bytef *)outbuf, len); - zf->bytes_left -= len; - return len; - } - break; - - case Z_BUF_ERROR: - if (zf->zstr->avail_in == 0) { - i = _zip_file_fillbuf(zf->buffer, BUFSIZE, zf); - if (i == 0) { - _zip_error_set(&zf->error, ZIP_ER_INCONS, 0); - return -1; - } - else if (i < 0) - return -1; - zf->zstr->next_in = (Bytef *)zf->buffer; - zf->zstr->avail_in = i; - continue; - } - /* fallthrough */ - case Z_NEED_DICT: - case Z_DATA_ERROR: - case Z_STREAM_ERROR: - case Z_MEM_ERROR: - _zip_error_set(&zf->error, ZIP_ER_ZLIB, ret); - return -1; - } - } -} |