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-rw-r--r--Source/CTest/Curl/content_encoding.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/Source/CTest/Curl/content_encoding.c b/Source/CTest/Curl/content_encoding.c
deleted file mode 100644
index b8c68bd..0000000
--- a/Source/CTest/Curl/content_encoding.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- * $Id$
- ***************************************************************************/
-
-#include "setup.h"
-
-#ifdef HAVE_LIBZ
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "urldata.h"
-#include <curl/curl.h>
-#include "sendf.h"
-#include "content_encoding.h"
-#include "curl_memory.h"
-
-#include "memdebug.h"
-
-#define DSIZ 0x10000 /* buffer size for decompressed data */
-
-#define GZIP_MAGIC_0 0x1f
-#define GZIP_MAGIC_1 0x8b
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define RESERVED 0xE0 /* bits 5..7: reserved */
-
-static CURLcode
-process_zlib_error(struct SessionHandle *data, z_stream *z)
-{
- if (z->msg)
- failf (data, "Error while processing content unencoding.\n%s",
- z->msg);
- else
- failf (data, "Error while processing content unencoding.\n"
- "Unknown failure within decompression software.");
-
- return CURLE_BAD_CONTENT_ENCODING;
-}
-
-static CURLcode
-exit_zlib(z_stream *z, bool *zlib_init, CURLcode result)
-{
- inflateEnd(z);
- *zlib_init = 0;
- return result;
-}
-
-CURLcode
-Curl_unencode_deflate_write(struct SessionHandle *data,
- struct Curl_transfer_keeper *k,
- ssize_t nread)
-{
- int status; /* zlib status */
- CURLcode result = CURLE_OK; /* Curl_client_write status */
- char decomp[DSIZ]; /* Put the decompressed data here. */
- z_stream *z = &k->z; /* zlib state structure */
-
- /* Initialize zlib? */
- if (!k->zlib_init) {
- z->zalloc = (alloc_func)Z_NULL;
- z->zfree = (free_func)Z_NULL;
- z->opaque = 0;
- z->next_in = NULL;
- z->avail_in = 0;
- if (inflateInit(z) != Z_OK)
- return process_zlib_error(data, z);
- k->zlib_init = 1;
- }
-
- /* Set the compressed input when this function is called */
- z->next_in = (Bytef *)k->str;
- z->avail_in = (uInt)nread;
-
- /* because the buffer size is fixed, iteratively decompress
- and transfer to the client via client_write. */
- for (;;) {
- /* (re)set buffer for decompressed output for every iteration */
- z->next_out = (Bytef *)&decomp[0];
- z->avail_out = DSIZ;
-
- status = inflate(z, Z_SYNC_FLUSH);
- if (status == Z_OK || status == Z_STREAM_END) {
- if (DSIZ - z->avail_out) {
- result = Curl_client_write(data, CLIENTWRITE_BODY, decomp,
- DSIZ - z->avail_out);
- /* if !CURLE_OK, clean up, return */
- if (result)
- return exit_zlib(z, &k->zlib_init, result);
- }
-
- /* Done?; clean up, return */
- if (status == Z_STREAM_END) {
- if (inflateEnd(z) == Z_OK)
- return exit_zlib(z, &k->zlib_init, result);
- else
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
-
- /* Done with these bytes, exit */
- if (status == Z_OK && z->avail_in == 0 && z->avail_out > 0)
- return result;
- }
- else { /* Error; exit loop, handle below */
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
- }
-}
-
-/* Skip over the gzip header */
-static enum {
- GZIP_OK,
- GZIP_BAD,
- GZIP_UNDERFLOW
-} check_gzip_header(unsigned char const *data, ssize_t len, ssize_t *headerlen)
-{
- int method, flags;
- const ssize_t totallen = len;
-
- /* The shortest header is 10 bytes */
- if (len < 10)
- return GZIP_UNDERFLOW;
-
- if ((data[0] != GZIP_MAGIC_0) || (data[1] != GZIP_MAGIC_1))
- return GZIP_BAD;
-
- method = data[2];
- flags = data[3];
-
- if (method != Z_DEFLATED || (flags & RESERVED) != 0) {
- /* Can't handle this compression method or unknown flag */
- return GZIP_BAD;
- }
-
- /* Skip over time, xflags, OS code and all previous bytes */
- len -= 10;
- data += 10;
-
- if (flags & EXTRA_FIELD) {
- ssize_t extra_len;
-
- if (len < 2)
- return GZIP_UNDERFLOW;
-
- extra_len = (data[1] << 8) | data[0];
-
- if (len < (extra_len+2))
- return GZIP_UNDERFLOW;
-
- len -= (extra_len + 2);
- }
-
- if (flags & ORIG_NAME) {
- /* Skip over NUL-terminated file name */
- while (len && *data) {
- --len;
- ++data;
- }
- if (!len || *data)
- return GZIP_UNDERFLOW;
-
- /* Skip over the NUL */
- --len;
- ++data;
- }
-
- if (flags & COMMENT) {
- /* Skip over NUL-terminated comment */
- while (len && *data) {
- --len;
- ++data;
- }
- if (!len || *data)
- return GZIP_UNDERFLOW;
-
- /* Skip over the NUL */
- --len;
- ++data;
- }
-
- if (flags & HEAD_CRC) {
- if (len < 2)
- return GZIP_UNDERFLOW;
-
- len -= 2;
- data += 2;
- }
-
- *headerlen = totallen - len;
- return GZIP_OK;
-}
-
-CURLcode
-Curl_unencode_gzip_write(struct SessionHandle *data,
- struct Curl_transfer_keeper *k,
- ssize_t nread)
-{
- int status; /* zlib status */
- CURLcode result = CURLE_OK; /* Curl_client_write status */
- char decomp[DSIZ]; /* Put the decompressed data here. */
- z_stream *z = &k->z; /* zlib state structure */
-
- /* Initialize zlib? */
- if (!k->zlib_init) {
- z->zalloc = (alloc_func)Z_NULL;
- z->zfree = (free_func)Z_NULL;
- z->opaque = 0;
- z->next_in = NULL;
- z->avail_in = 0;
- if (inflateInit2(z, -MAX_WBITS) != Z_OK)
- return process_zlib_error(data, z);
- k->zlib_init = 1; /* Initial call state */
- }
-
- /* This next mess is to get around the potential case where there isn't
- * enough data passed in to skip over the gzip header. If that happens, we
- * malloc a block and copy what we have then wait for the next call. If
- * there still isn't enough (this is definitely a worst-case scenario), we
- * make the block bigger, copy the next part in and keep waiting.
- */
-
- /* Skip over gzip header? */
- if (k->zlib_init == 1) {
- /* Initial call state */
- ssize_t hlen;
-
- switch (check_gzip_header((unsigned char *)k->str, nread, &hlen)) {
- case GZIP_OK:
- z->next_in = (Bytef *)k->str + hlen;
- z->avail_in = (uInt)(nread - hlen);
- k->zlib_init = 3; /* Inflating stream state */
- break;
-
- case GZIP_UNDERFLOW:
- /* We need more data so we can find the end of the gzip header. It's
- * possible that the memory block we malloc here will never be freed if
- * the transfer abruptly aborts after this point. Since it's unlikely
- * that circumstances will be right for this code path to be followed in
- * the first place, and it's even more unlikely for a transfer to fail
- * immediately afterwards, it should seldom be a problem.
- */
- z->avail_in = (uInt)nread;
- z->next_in = malloc(z->avail_in);
- if (z->next_in == NULL) {
- return exit_zlib(z, &k->zlib_init, CURLE_OUT_OF_MEMORY);
- }
- memcpy(z->next_in, k->str, z->avail_in);
- k->zlib_init = 2; /* Need more gzip header data state */
- /* We don't have any data to inflate yet */
- return CURLE_OK;
-
- case GZIP_BAD:
- default:
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
-
- }
- else if (k->zlib_init == 2) {
- /* Need more gzip header data state */
- ssize_t hlen;
- unsigned char *oldblock = z->next_in;
-
- z->avail_in += nread;
- z->next_in = realloc(z->next_in, z->avail_in);
- if (z->next_in == NULL) {
- free(oldblock);
- return exit_zlib(z, &k->zlib_init, CURLE_OUT_OF_MEMORY);
- }
- /* Append the new block of data to the previous one */
- memcpy(z->next_in + z->avail_in - nread, k->str, nread);
-
- switch (check_gzip_header(z->next_in, z->avail_in, &hlen)) {
- case GZIP_OK:
- /* This is the zlib stream data */
- free(z->next_in);
- /* Don't point into the malloced block since we just freed it */
- z->next_in = (Bytef *)k->str + hlen + nread - z->avail_in;
- z->avail_in = (uInt)(z->avail_in - hlen);
- k->zlib_init = 3; /* Inflating stream state */
- break;
-
- case GZIP_UNDERFLOW:
- /* We still don't have any data to inflate! */
- return CURLE_OK;
-
- case GZIP_BAD:
- default:
- free(z->next_in);
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
-
- }
- else {
- /* Inflating stream state */
- z->next_in = (Bytef *)k->str;
- z->avail_in = (uInt)nread;
- }
-
- if (z->avail_in == 0) {
- /* We don't have any data to inflate; wait until next time */
- return CURLE_OK;
- }
-
- /* because the buffer size is fixed, iteratively decompress and transfer to
- the client via client_write. */
- for (;;) {
- /* (re)set buffer for decompressed output for every iteration */
- z->next_out = (Bytef *)&decomp[0];
- z->avail_out = DSIZ;
-
- status = inflate(z, Z_SYNC_FLUSH);
- if (status == Z_OK || status == Z_STREAM_END) {
- if(DSIZ - z->avail_out) {
- result = Curl_client_write(data, CLIENTWRITE_BODY, decomp,
- DSIZ - z->avail_out);
- /* if !CURLE_OK, clean up, return */
- if (result)
- return exit_zlib(z, &k->zlib_init, result);
- }
-
- /* Done?; clean up, return */
- /* We should really check the gzip CRC here */
- if (status == Z_STREAM_END) {
- if (inflateEnd(z) == Z_OK)
- return exit_zlib(z, &k->zlib_init, result);
- else
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
-
- /* Done with these bytes, exit */
- if (status == Z_OK && z->avail_in == 0 && z->avail_out > 0)
- return result;
- }
- else { /* Error; exit loop, handle below */
- return exit_zlib(z, &k->zlib_init, process_zlib_error(data, z));
- }
- }
-}
-#endif /* HAVE_LIBZ */
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