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Diffstat (limited to 'ext/zip/lib/zip_fopen_index.c')
-rw-r--r--ext/zip/lib/zip_fopen_index.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/ext/zip/lib/zip_fopen_index.c b/ext/zip/lib/zip_fopen_index.c
deleted file mode 100644
index 5da9230b2e..0000000000
--- a/ext/zip/lib/zip_fopen_index.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- $NiH: zip_fopen_index.c,v 1.24 2005/05/20 21:54:53 wiz Exp $
-
- zip_fopen_index.c -- open file in zip archive for reading by index
- 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 <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "zip.h"
-#include "zipint.h"
-
-static struct zip_file *_zip_file_new(struct zip *za);
-
-
-
-struct zip_file *
-zip_fopen_index(struct zip *za, int fileno, int flags)
-{
- int len, ret;
- int zfflags;
- struct zip_file *zf;
-
- if ((fileno < 0) || (fileno >= za->nentry)) {
- _zip_error_set(&za->error, ZIP_ER_INVAL, 0);
- return NULL;
- }
-
- if ((flags & ZIP_FL_UNCHANGED) == 0
- && ZIP_ENTRY_DATA_CHANGED(za->entry+fileno)) {
- _zip_error_set(&za->error, ZIP_ER_CHANGED, 0);
- return NULL;
- }
-
- if (fileno >= za->cdir->nentry) {
- _zip_error_set(&za->error, ZIP_ER_INVAL, 0);
- return NULL;
- }
-
- zfflags = 0;
- switch (za->cdir->entry[fileno].comp_method) {
- case ZIP_CM_STORE:
- zfflags |= ZIP_ZF_CRC;
- break;
-
- case ZIP_CM_DEFLATE:
- if ((flags & ZIP_FL_COMPRESSED) == 0)
- zfflags |= ZIP_ZF_CRC | ZIP_ZF_DECOMP;
- break;
- default:
- if ((flags & ZIP_FL_COMPRESSED) == 0) {
- _zip_error_set(&za->error, ZIP_ER_COMPNOTSUPP, 0);
- return NULL;
- }
- break;
- }
-
- zf = _zip_file_new(za);
-
- zf->flags = zfflags;
- /* zf->name = za->cdir->entry[fileno].filename; */
- zf->method = za->cdir->entry[fileno].comp_method;
- zf->bytes_left = za->cdir->entry[fileno].uncomp_size;
- zf->cbytes_left = za->cdir->entry[fileno].comp_size;
- zf->crc_orig = za->cdir->entry[fileno].crc;
-
- if ((zf->fpos=_zip_file_get_offset(za, fileno)) == 0) {
- zip_fclose(zf);
- return NULL;
- }
-
- if ((zf->flags & ZIP_ZF_DECOMP) == 0)
- zf->bytes_left = zf->cbytes_left;
- else {
- if ((zf->buffer=(char *)malloc(BUFSIZE)) == NULL) {
- _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
- zip_fclose(zf);
- return NULL;
- }
-
- len = _zip_file_fillbuf(zf->buffer, BUFSIZE, zf);
- if (len <= 0) {
- _zip_error_copy(&za->error, &zf->error);
- zip_fclose(zf);
- return NULL;
- }
-
- if ((zf->zstr = (z_stream *)malloc(sizeof(z_stream))) == NULL) {
- _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
- zip_fclose(zf);
- return NULL;
- }
- zf->zstr->zalloc = Z_NULL;
- zf->zstr->zfree = Z_NULL;
- zf->zstr->opaque = NULL;
- zf->zstr->next_in = (Bytef *)zf->buffer;
- zf->zstr->avail_in = len;
-
- /* negative value to tell zlib that there is no header */
- if ((ret=inflateInit2(zf->zstr, -MAX_WBITS)) != Z_OK) {
- _zip_error_set(&za->error, ZIP_ER_ZLIB, ret);
- zip_fclose(zf);
- return NULL;
- }
- }
-
- return zf;
-}
-
-
-
-int
-_zip_file_fillbuf(void *buf, size_t buflen, struct zip_file *zf)
-{
- int i, j;
-
- if (zf->error.zip_err != ZIP_ER_OK)
- return -1;
-
- if ((zf->flags & ZIP_ZF_EOF) || zf->cbytes_left <= 0 || buflen <= 0)
- return 0;
-
- if (fseek(zf->za->zp, zf->fpos, SEEK_SET) < 0) {
- _zip_error_set(&zf->error, ZIP_ER_SEEK, errno);
- return -1;
- }
- if (buflen < zf->cbytes_left)
- i = buflen;
- else
- i = zf->cbytes_left;
-
- j = fread(buf, 1, i, zf->za->zp);
- if (j == 0) {
- _zip_error_set(&zf->error, ZIP_ER_EOF, 0);
- j = -1;
- }
- else if (j < 0)
- _zip_error_set(&zf->error, ZIP_ER_READ, errno);
- else {
- zf->fpos += j;
- zf->cbytes_left -= j;
- }
-
- return j;
-}
-
-
-
-static struct zip_file *
-_zip_file_new(struct zip *za)
-{
- struct zip_file *zf, **file;
- int n;
-
- if ((zf=(struct zip_file *)malloc(sizeof(struct zip_file))) == NULL) {
- _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
- return NULL;
- }
-
- if (za->nfile >= za->nfile_alloc-1) {
- n = za->nfile_alloc + 10;
- file = (struct zip_file **)realloc(za->file,
- n*sizeof(struct zip_file *));
- if (file == NULL) {
- _zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
- free(zf);
- return NULL;
- }
- za->nfile_alloc = n;
- za->file = file;
- }
-
- za->file[za->nfile++] = zf;
-
- zf->za = za;
- _zip_error_init(&zf->error);
- zf->flags = 0;
- zf->crc = crc32(0L, Z_NULL, 0);
- zf->crc_orig = 0;
- zf->method = -1;
- zf->bytes_left = zf->cbytes_left = 0;
- zf->fpos = 0;
- zf->buffer = NULL;
- zf->zstr = NULL;
-
- return zf;
-}
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