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apps/examples/lzf: unlzf and lzcat are not supported.

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This commit is contained in:
Gregory Nutt 2018-03-15 09:23:44 -06:00
parent 7c70ca5006
commit 177cc93051
1 changed files with 13 additions and 26 deletions
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35
examples/lzf/lzf_main.c
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@ -66,7 +66,7 @@ static off_t g_nread;
static off_t g_nwritten;
static FAR const char *g_imagename;
static enum { COMPRESS, UNCOMPRESS, LZCAT } g_mode = COMPRESS;
static enum { COMPRESS, UNCOMPRESS } g_mode = COMPRESS;
static bool g_verbose = false;
static bool g_force = 0;
static long blocksize = BLOCKSIZE;
@ -93,8 +93,6 @@ static void usage(int ret)
"http://liblzf.plan9.de/\n"
"\n"
"usage: lzf [-dufhvb] [file ...]\n"
" unlzf [file ...]\n"
" lzcat [file ...]\n"
"\n%s",
opt);
@ -382,13 +380,10 @@ static int run_file(const char *fname)
struct stat mystat;
char oname[PATH_MAX + 1];
if (g_mode != LZCAT)
{
if (compose_name(fname, oname))
{
return -1;
}
}
ret = stat(fname, &mystat);
fd = open(fname, O_RDONLY);
@ -406,13 +401,6 @@ static int run_file(const char *fname)
return -1;
}
if (g_mode == LZCAT)
{
ret = uncompress_fd(fd, 1);
close(fd);
return ret;
}
fd2 = open_out(oname);
if (fd2 == -1)
{
@ -468,6 +456,8 @@ int lzf_main(int argc, FAR char *argv[])
int ret = 0;
#ifndef CONFIG_DISABLE_ENVIRON
/* Block size may be specified as an environment variable */
p = getenv("LZF_BLOCKSIZE");
if (p)
{
@ -479,18 +469,16 @@ int lzf_main(int argc, FAR char *argv[])
}
#endif
/* Get the program name sans path */
p = strrchr(argv[0], '/');
g_imagename = p ? ++p : argv[0];
if (!strncmp(g_imagename, "un", 2) || !strncmp(g_imagename, "de", 2))
{
g_mode = UNCOMPRESS;
}
/* Assume compression mode */
if (strstr(g_imagename, "cat"))
{
g_mode = LZCAT;
}
g_mode = COMPRESS;
/* Handle command line options */
while ((optc = getopt(argc, argv, "cdfhvb:")) != -1)
{
@ -517,9 +505,8 @@ int lzf_main(int argc, FAR char *argv[])
break;
case 'b':
errno = 0;
blocksize = strtoul(optarg, 0, 0);
if (errno || !blocksize || blocksize > MAX_BLOCKSIZE)
if (!blocksize || blocksize > MAX_BLOCKSIZE)
{
blocksize = BLOCKSIZE;
}
@ -539,7 +526,7 @@ int lzf_main(int argc, FAR char *argv[])
#ifdef CONFIG_SERIAL_TERMIOS
if (!g_force)
{
if ((g_mode == UNCOMPRESS || g_mode == LZCAT) && isatty(0))
if ((g_mode == UNCOMPRESS) && isatty(0))
{
fprintf(stderr, "%s: compressed data not read from a terminal. "
"Use -f to force decompression.\n", g_imagename);