mirror of
https://github.com/php/php-src.git
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149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 4 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2002 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.02 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.php.net/license/2_02.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Wez Furlong <wez@thebrainroom.com>, based on work by: |
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| Hartmut Holzgraefe <hartmut@six.de> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#define IS_EXT_MODULE
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#define _GNU_SOURCE
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#include "php.h"
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#include "php_zlib.h"
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#include "fopen_wrappers.h"
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struct php_gz_stream_data_t {
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gzFile gz_file;
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php_stream *stream;
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};
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static size_t php_gziop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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if (buf == NULL && count == 0) {
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if (gzeof(self->gz_file))
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return EOF;
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return 0;
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}
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return gzread(self->gz_file, buf, count);
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}
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static char *php_gziop_gets(php_stream *stream, char *buf, size_t size TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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return gzgets(self->gz_file, buf, size);
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}
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static size_t php_gziop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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return gzwrite(self->gz_file, (char*)buf, count);
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}
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static int php_gziop_seek(php_stream *stream, off_t offset, int whence TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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assert(self != NULL);
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if (offset == 0 && whence == SEEK_CUR)
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return gztell(self->gz_file);
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return gzseek(self->gz_file, offset, whence);
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}
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static int php_gziop_close(php_stream *stream, int close_handle TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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int ret = EOF;
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if (close_handle)
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ret = gzclose(self->gz_file);
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php_stream_free(self->stream, PHP_STREAM_FREE_CLOSE | (close_handle == 0 ? PHP_STREAM_FREE_PRESERVE_HANDLE : 0));
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efree(self);
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return ret;
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}
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static int php_gziop_flush(php_stream *stream TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *)stream->abstract;
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return gzflush(self->gz_file, Z_SYNC_FLUSH);
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}
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php_stream_ops php_stream_gzio_ops = {
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php_gziop_write, php_gziop_read,
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php_gziop_close, php_gziop_flush,
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"ZLIB",
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php_gziop_seek, php_gziop_gets,
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NULL, NULL
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};
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php_stream *php_stream_gzopen(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path STREAMS_DC TSRMLS_DC)
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{
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struct php_gz_stream_data_t *self;
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php_stream *stream = NULL;
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self = emalloc(sizeof(*self));
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if (strncasecmp("zlib://", path, 7) == 0)
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path += 7;
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self->stream = php_stream_open_wrapper(path, mode, STREAM_MUST_SEEK|options, opened_path);
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if (self->stream) {
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int fd;
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if (SUCCESS == php_stream_cast(self->stream, PHP_STREAM_AS_FD, (void**)&fd, REPORT_ERRORS)) {
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self->gz_file = gzdopen(fd, mode);
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if (self->gz_file) {
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stream = php_stream_alloc_rel(&php_stream_gzio_ops, self, 0, mode);
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if (stream)
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return stream;
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gzclose(self->gz_file);
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}
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}
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}
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if (stream)
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php_stream_close(stream);
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if (self && self->stream)
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php_stream_close(self->stream);
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if (self)
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efree(self);
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return NULL;
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}
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static php_stream_wrapper_ops gzip_stream_wops = {
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php_stream_gzopen,
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NULL
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};
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php_stream_wrapper php_stream_gzip_wrapper = {
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&gzip_stream_wops,
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NULL
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};
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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