Add compatibility mode with gzip

This commit is contained in:
ckolivas 2015-03-13 13:02:54 +11:00
parent 3a53bec832
commit 90c8072deb
2 changed files with 62 additions and 14 deletions

View file

@ -107,12 +107,14 @@ install-exec-hook:
$(LN_S) -f lrzip$(EXEEXT) $(DESTDIR)$(bindir)/lrunzip$(EXEEXT)
$(LN_S) -f lrzip$(EXEEXT) $(DESTDIR)$(bindir)/lrzcat$(EXEEXT)
$(LN_S) -f lrztar$(EXEEXT) $(DESTDIR)$(bindir)/lrzuntar$(EXEEXT)
$(LN_S) -f lrz$(EXEEXT) $(DESTDIR)$(bindir)/lrz$(EXEEXT)
uninstall-local:
rm -f $(bindir)/lrunzip
rm -f $(bindir)/lrzcat
rm -f $(bindir)/lrzuntar
rm -f $(bindir)/lrz
.PHONY: doc

74
main.c
View file

@ -50,6 +50,7 @@
#endif
#include <getopt.h>
#include <libgen.h>
#include "rzip.h"
#include "lrzip_core.h"
@ -61,7 +62,7 @@
static rzip_control base_control, local_control, *control;
static void usage(void)
static void usage(bool compat)
{
print_output("lrzip version %s\n", PACKAGE_VERSION);
print_output("Copyright (C) Con Kolivas 2006-2015\n");
@ -69,20 +70,30 @@ static void usage(void)
print_output("Copyright (C) Andrew Tridgell 1998-2003\n\n");
print_output("Usage: lrzip [options] <file...>\n");
print_output("General options:\n");
print_output(" -c, --check check integrity of file written on decompression\n");
if (compat) {
print_output(" -c, --stdout output to STDOUT\n");
print_output(" -C, --check check integrity of file written on decompression\n");
} else
print_output(" -c, -C, --check check integrity of file written on decompression\n");
print_output(" -d, --decompress decompress\n");
print_output(" -e, --encrypt password protected sha512/aes128 encryption on compression\n");
print_output(" -h, -?, --help show help\n");
print_output(" -H, --hash display md5 hash integrity information\n");
print_output(" -i, --info show compressed file information\n");
print_output(" -q, --quiet don't show compression progress\n");
if (compat)
print_output(" -P, --progress show compression progress\n");
else
print_output(" -q, --quiet don't show compression progress\n");
print_output(" -t, --test test compressed file integrity\n");
print_output(" -v[v], --verbose Increase verbosity\n");
print_output(" -V, --version show version\n");
print_output("Options affecting output:\n");
print_output(" -D, --delete delete existing files\n");
if (!compat)
print_output(" -D, --delete delete existing files\n");
print_output(" -f, --force force overwrite of any existing files\n");
print_output(" -k, --keep-broken keep broken or damaged output files\n");
if (compat)
print_output(" -k, --keep don't delete source files on de/compression\n");
print_output(" -%s, --keep-broken keep broken or damaged output files\n", compat ? "K" : "k, -K");
print_output(" -o, --outfile filename specify the output file name and/or path\n");
print_output(" -O, --outdir directory specify the output directory when -o is not used\n");
print_output(" -S, --suffix suffix specify compressed suffix (default '.lrz')\n");
@ -94,7 +105,7 @@ static void usage(void)
print_output(" -z, --zpaq zpaq compression (best, extreme compression, extremely slow)\n");
print_output("Low level options:\n");
print_output(" -L, --level level set lzma/bzip2/gzip compression level (1-9, default 7)\n");
print_output(" -N, --nice-level value Set nice value to value (default 19)\n");
print_output(" -N, --nice-level value Set nice value to value (default %d)\n", compat ? 0 : 19);
print_output(" -p, --threads value Set processor count to override number of threads\n");
print_output(" -m, --maxram size Set maximim available ram in hundreds of MB\n");
print_output(" overrides detected ammount of available ram\n");
@ -191,6 +202,7 @@ static void show_summary(void)
static struct option long_options[] = {
{"bzip2", no_argument, 0, 'b'},
{"check", no_argument, 0, 'c'},
{"check", no_argument, 0, 'C'},
{"decompress", no_argument, 0, 'd'},
{"delete", no_argument, 0, 'D'},
{"encrypt", no_argument, 0, 'e'},
@ -200,6 +212,7 @@ static struct option long_options[] = {
{"hash", no_argument, 0, 'H'},
{"info", no_argument, 0, 'i'},
{"keep-broken", no_argument, 0, 'k'},
{"keep-broken", no_argument, 0, 'K'},
{"lzo", no_argument, 0, 'l'},
{"level", no_argument, 0, 'L'},
{"maxram", required_argument, 0, 'm'},
@ -208,6 +221,7 @@ static struct option long_options[] = {
{"outfile", required_argument, 0, 'o'},
{"outdir", required_argument, 0, 'O'},
{"threads", required_argument, 0, 'p'},
{"progress", no_argument, 0, 'P'},
{"quiet", no_argument, 0, 'q'},
{"suffix", required_argument, 0, 'S'},
{"test", no_argument, 0, 't'},
@ -217,29 +231,40 @@ static struct option long_options[] = {
{"version", no_argument, 0, 'V'},
{"window", required_argument, 0, 'w'},
{"zpaq", no_argument, 0, 'z'},
{"fast", no_argument, 0, '1'},
{"best", no_argument, 0, '9'},
{0, 0, 0, 0},
};
int main(int argc, char *argv[])
{
bool lrzcat = false, compat = false;
struct timeval start_time, end_time;
struct sigaction handler;
double seconds,total_time; // for timers
bool lrzcat = false;
int c, i;
int hours,minutes;
extern int optind;
char *eptr; /* for environment */
char *eptr, *av; /* for environment */
control = &base_control;
initialise_control(control);
if (strstr(argv[0], "lrunzip"))
av = basename(argv[0]);
if (!strcmp(av, "lrunzip"))
control->flags |= FLAG_DECOMPRESS;
else if (strstr(argv[0], "lrzcat")) {
else if (!strcmp(av, "lrzcat")) {
control->flags |= FLAG_DECOMPRESS | FLAG_STDOUT;
lrzcat = true;
} else if (!strcmp(av, "lrz")) {
/* Called in gzip compatible command line mode */
control->flags &= ~FLAG_SHOW_PROGRESS;
control->nice_val = 0;
control->flags &= ~FLAG_KEEP_FILES;
compat = true;
long_options[1].name = "stdout";
long_options[11].name = "keep";
}
/* generate crc table */
@ -255,7 +280,7 @@ int main(int argc, char *argv[])
else if (!strstr(eptr,"NOCONFIG"))
read_config(control);
while ((c = getopt_long(argc, argv, "bcdDefghHiklL:nN:o:O:p:qS:tTUm:vVw:z?", long_options, &i)) != -1) {
while ((c = getopt_long(argc, argv, "bcCdDefghHikKlL:nN:o:O:pP:qS:tTUm:vVw:z?123456789", long_options, &i)) != -1) {
switch (c) {
case 'b':
if (control->flags & FLAG_NOT_LZMA)
@ -263,6 +288,11 @@ int main(int argc, char *argv[])
control->flags |= FLAG_BZIP2_COMPRESS;
break;
case 'c':
if (compat) {
control->flags |= FLAG_STDOUT;
break;
}
case 'C':
control->flags |= FLAG_CHECK;
control->flags |= FLAG_HASH;
break;
@ -285,7 +315,7 @@ int main(int argc, char *argv[])
break;
case 'h':
case '?':
usage();
usage(compat);
return -1;
case 'H':
control->flags |= FLAG_HASH;
@ -294,6 +324,11 @@ int main(int argc, char *argv[])
control->flags |= FLAG_INFO;
break;
case 'k':
if (compat) {
control->flags |= FLAG_KEEP_FILES;
break;
}
case 'K':
control->flags |= FLAG_KEEP_BROKEN;
break;
case 'l':
@ -388,6 +423,17 @@ int main(int argc, char *argv[])
failure("Can only use one of -l, -b, -g, -z or -n\n");
control->flags |= FLAG_ZPAQ_COMPRESS;
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
control->compression_level = c - '0';
break;
}
}
@ -482,12 +528,12 @@ int main(int argc, char *argv[])
if (!FORCE_REPLACE) {
if (STDIN && isatty(fileno((FILE *)stdin))) {
print_err("Will not read stdin from a terminal. Use -f to override.\n");
usage();
usage(compat);
exit (1);
}
if (!TEST_ONLY && STDOUT && isatty(fileno((FILE *)stdout))) {
print_err("Will not write stdout to a terminal. Use -f to override.\n");
usage();
usage(compat);
exit (1);
}
}