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system/lzf: fix nxstyle warning

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Signed-off-by: chao.an <anchao@xiaomi.com>
This commit is contained in:
chao.an 2021-12-20 13:43:08 +08:00 committed by Xiang Xiao
parent 0f632f1d66
commit 5a61f9e0b0
1 changed files with 39 additions and 25 deletions
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64
system/lzf/lzf_main.c
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@ -1,27 +1,30 @@
/****************************************************************************
* apps/examples/lzf/lzf_main.c
* apps/system/lzf/lzf_main.c
*
* Copyright (c) 2006 Stefan Traby <stefan@hello-penguin.com>
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
* 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.
* 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.
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
* CIAL, 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 OTH-
* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
****************************************************************************/
@ -66,7 +69,10 @@ static off_t g_nread;
static off_t g_nwritten;
static FAR const char *g_imagename;
static enum { COMPRESS, UNCOMPRESS } g_mode;
static enum
{
COMPRESS, UNCOMPRESS
} g_mode;
static bool g_verbose;
static bool g_force;
static unsigned long g_blocksize;
@ -92,8 +98,10 @@ static void lzf_exit(int exitcode)
static void usage(int ret)
{
fprintf(stderr, "\n"
"lzf, a very lightweight compression/decompression utility written by Stefan Traby.\n"
"uses liblzf written by Marc Lehmann <schmorp@schmorp.de> You can find more info at\n"
"lzf, a very lightweight compression/decompression "
"utility written by Stefan Traby.\n"
"uses liblzf written by Marc Lehmann <schmorp@schmorp.de> "
" You can find more info at\n"
"http://liblzf.plan9.de/\n"
"\n"
"usage: lzf [-dufhvb] [file ...]\n\n"
@ -155,7 +163,8 @@ static inline ssize_t wwrite(int fd, void *buf, size_t len)
return 0;
}
/* Anatomy: an lzf file consists of any number of blocks in the following format:
/* Anatomy: an lzf file consists of any number of blocks
* in the following format:
*
* \x00 EOF (optional)
* "ZV\0" 2-byte-usize <uncompressed data>
@ -172,7 +181,8 @@ static int compress_fd(int from, int to)
g_nread = g_nwritten = 0;
while ((us = rread(from, &g_buf1[LZF_MAX_HDR_SIZE], g_blocksize)) > 0)
{
len = lzf_compress(&g_buf1[LZF_MAX_HDR_SIZE], us, &g_buf2[LZF_MAX_HDR_SIZE],
len = lzf_compress(&g_buf1[LZF_MAX_HDR_SIZE], us,
&g_buf2[LZF_MAX_HDR_SIZE],
us > 4 ? us - 4 : us, g_htab, &header);
if (wwrite(to, header, len) == -1)
{
@ -214,7 +224,8 @@ static int uncompress_fd(int from, int to)
if (ret < LZF_MIN_HDR_SIZE || header[0] != 'Z' || header[1] != 'V')
{
fprintf(stderr, "%s: invalid data stream - magic not found or short header\n",
fprintf(stderr, "%s: invalid data stream - "
"magic not found or short header\n",
g_imagename);
return -1;
}
@ -278,7 +289,8 @@ static int uncompress_fd(int from, int to)
{
if (lzf_decompress(g_buf1, cs, g_buf2, us) != us)
{
fprintf(stderr, "%s: decompress: invalid stream - data corrupted\n",
fprintf(stderr, "%s: decompress: invalid stream - "
"data corrupted\n",
g_imagename);
return -1;
}
@ -533,14 +545,16 @@ int main(int argc, FAR char *argv[])
{
if ((g_mode == UNCOMPRESS) && isatty(0))
{
fprintf(stderr, "%s: compressed data not read from a terminal. "
fprintf(stderr,
"%s: compressed data not read from a terminal. "
"Use -f to force decompression.\n", g_imagename);
lzf_exit(1);
}
if (g_mode == COMPRESS && isatty(1))
{
fprintf(stderr, "%s: compressed data not written to a terminal. "
fprintf(stderr,
"%s: compressed data not written to a terminal. "
"Use -f to force compression.\n", g_imagename);
lzf_exit(1);
}