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lib/archive.c: remove support to read zplists in archives.

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It was never used and the binpkgs are already compressed...
This commit is contained in:
Juan RP 2014-10-17 10:10:16 +02:00
parent 84a16c86cc
commit 47310d3408
1 changed files with 3 additions and 95 deletions
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98
lib/archive.c
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@ -1,5 +1,5 @@
/*-
* Copyright (c) 2008-2013 Juan Romero Pardines.
* Copyright (c) 2008-2014 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -28,93 +28,16 @@
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <zlib.h>
#include "xbps_api_impl.h"
/*
* Takes a compressed data buffer, decompresses it and returns the
* new buffer uncompressed if all was right.
*/
#define _READ_CHUNK 8192
static char *
uncompress_plist_data(char *xml, size_t len)
{
z_stream strm;
unsigned char *out;
char *uncomp_xml = NULL;
size_t have;
ssize_t totalsize = 0;
int rv = 0;
assert(xml != NULL);
/* Decompress the mmap'ed buffer with zlib */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
/* 15+16 to use gzip method */
if (inflateInit2(&strm, 15+16) != Z_OK)
return NULL;
strm.avail_in = len;
strm.next_in = (unsigned char *)xml;
/* Output buffer (uncompressed) */
if ((uncomp_xml = malloc(_READ_CHUNK)) == NULL) {
(void)inflateEnd(&strm);
return NULL;
}
/* temp output buffer for inflate */
if ((out = malloc(_READ_CHUNK)) == NULL) {
(void)inflateEnd(&strm);
free(uncomp_xml);
return NULL;
}
/* Inflate the input buffer and copy into 'uncomp_xml' */
do {
strm.avail_out = _READ_CHUNK;
strm.next_out = out;
rv = inflate(&strm, Z_NO_FLUSH);
switch (rv) {
case Z_DATA_ERROR:
case Z_STREAM_ERROR:
case Z_NEED_DICT:
case Z_MEM_ERROR:
case Z_BUF_ERROR:
case Z_VERSION_ERROR:
(void)inflateEnd(&strm);
free(uncomp_xml);
free(out);
return NULL;
}
have = _READ_CHUNK - strm.avail_out;
totalsize += have;
uncomp_xml = realloc(uncomp_xml, totalsize);
memcpy(uncomp_xml + totalsize - have, out, have);
} while (strm.avail_out == 0);
/* we are done */
(void)inflateEnd(&strm);
free(out);
return uncomp_xml;
}
#undef _READ_CHUNK
xbps_dictionary_t HIDDEN
xbps_archive_get_dictionary(struct archive *ar, struct archive_entry *entry)
{
xbps_dictionary_t d = NULL;
size_t buflen;
ssize_t nbytes = -1;
char *buf, *uncomp_buf;
char *buf;
assert(ar != NULL);
assert(entry != NULL);
@ -136,22 +59,7 @@ xbps_archive_get_dictionary(struct archive *ar, struct archive_entry *entry)
free(buf);
return d;
}
/* Try to uncompress blob */
uncomp_buf = uncompress_plist_data(buf, buflen);
if (uncomp_buf == NULL) {
/* Error while decompressing */
free(uncomp_buf);
xbps_object_release(d);
d = NULL;
} else {
/* We have the uncompressed data */
d = xbps_dictionary_internalize(uncomp_buf);
free(uncomp_buf);
}
free(buf);
return d;
return NULL;
}
int