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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:05 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:04 +0200
commit78acc472d9719316f22e002a009a998d9ceec29d (patch)
treeaa99461b3d693cf3691869abea485091860a66d0 /lib_generic/gunzip.c
parentea0364f1bbfed1e3ea711147420875cf338fe77a (diff)
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Rename lib_generic/ to lib/
Now that the other architecture-specific lib directories have been moved out of the top-level directory there's not much reason to have the '_generic' suffix on the common lib directory. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'lib_generic/gunzip.c')
-rw-r--r--lib_generic/gunzip.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/lib_generic/gunzip.c b/lib_generic/gunzip.c
deleted file mode 100644
index d2b7ad4..0000000
--- a/lib_generic/gunzip.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * (C) Copyright 2000-2006
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <watchdog.h>
-#include <command.h>
-#include <image.h>
-#include <malloc.h>
-#include <u-boot/zlib.h>
-
-#define ZALLOC_ALIGNMENT 16
-#define HEAD_CRC 2
-#define EXTRA_FIELD 4
-#define ORIG_NAME 8
-#define COMMENT 0x10
-#define RESERVED 0xe0
-#define DEFLATED 8
-
-void *zalloc(void *, unsigned, unsigned);
-void zfree(void *, void *, unsigned);
-
-void *zalloc(void *x, unsigned items, unsigned size)
-{
- void *p;
-
- size *= items;
- size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
-
- p = malloc (size);
-
- return (p);
-}
-
-void zfree(void *x, void *addr, unsigned nb)
-{
- free (addr);
-}
-
-int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
-{
- int i, flags;
-
- /* skip header */
- i = 10;
- flags = src[3];
- if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
- puts ("Error: Bad gzipped data\n");
- return (-1);
- }
- if ((flags & EXTRA_FIELD) != 0)
- i = 12 + src[10] + (src[11] << 8);
- if ((flags & ORIG_NAME) != 0)
- while (src[i++] != 0)
- ;
- if ((flags & COMMENT) != 0)
- while (src[i++] != 0)
- ;
- if ((flags & HEAD_CRC) != 0)
- i += 2;
- if (i >= *lenp) {
- puts ("Error: gunzip out of data in header\n");
- return (-1);
- }
-
- return zunzip(dst, dstlen, src, lenp, 1, i);
-}
-
-/*
- * Uncompress blocks compressed with zlib without headers
- */
-int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
- int stoponerr, int offset)
-{
- z_stream s;
- int r;
-
- s.zalloc = zalloc;
- s.zfree = zfree;
-#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
- s.outcb = (cb_func)WATCHDOG_RESET;
-#else
- s.outcb = Z_NULL;
-#endif /* CONFIG_HW_WATCHDOG */
-
- r = inflateInit2(&s, -MAX_WBITS);
- if (r != Z_OK) {
- printf ("Error: inflateInit2() returned %d\n", r);
- return -1;
- }
- s.next_in = src + offset;
- s.avail_in = *lenp - offset;
- s.next_out = dst;
- s.avail_out = dstlen;
- r = inflate(&s, Z_FINISH);
- if ((r != Z_STREAM_END) && (stoponerr==1)) {
- printf ("Error: inflate() returned %d\n", r);
- inflateEnd(&s);
- return (-1);
- }
- *lenp = s.next_out - (unsigned char *) dst;
- inflateEnd(&s);
-
- return 0;
-}