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|
/*\
|*| Parity Archive - A way to restore missing files in a set.
|*|
|*| Copyright (C) 2001 Willem Monsuwe (willem@stack.nl)
|*|
|*| File format by Stefan Wehlus -
|*| initial idea by Tobias Rieper, further suggestions by Kilroy Balore
|*|
|*| CommandLine User Interface
\*/
#include <stdio.h>
#include "interface.h"
/*\
|*| Print usage
\*/
static int
usage(void)
{
printf(
"Usage:\n"
" par c(heck) [options] <par file> : Check parity archive\n"
" par r(ecover) [options] <par file> : Restore missing volumes\n"
" par a(dd) [options] <par file> [files] : Add files to parity archive\n"
" Advanced:\n"
" par m(ix) [options] : Try to restore from all parity files at once\n"
" par i(nteractive) [<par files>] : Interactive mode (very bare-bones)\n"
"\n"
"Options: (Can be turned off with '+')\n"
" -m : Move existing files out of the way\n"
" -f : Fix faulty filenames\n"
" -p<n>: Number of files per parity volume\n"
" or -n<n>: Number of parity volumes to create\n"
" -k : Keep broken files\n"
" -s : Be smart if filenames are consistently different.\n"
" +i : Do not add following files to parity volumes\n"
" +c : Do not create parity volumes\n"
" +C : Ignore case in filename comparisons\n"
" +H : Do not check control hashes\n"
" -v,+v: Increase or decrease verbosity\n"
" -h,-?: Display this help\n"
" -- : Always treat following arguments as files\n"
"\n"
);
return 0;
}
int
ui_cli(int argc, char *argv[])
{
int nvolumes = 10, pervol = 1, adding = 1, makepxx = 1,
smart = 0, dash = 0, plus = 0;
int (* flag)(int) = par_setflags;
par_setflags(PARFLAG_CTRL | PARFLAG_CASE | PARFLAG_MOVE);
if (argc == 1) return usage();
for (; argc > 1; argc--, argv++) {
if (((argv[1][0] == '-') || (argv[1][0] == '+')) &&
argv[1][1] && !dash) {
for (p = argv[1]; *p; p++) switch (*p) {
case '-':
if (p[1] == '-') {
dash = 1;
} else {
plus = 1;
flag = par_setflags;
}
break;
case '+':
plus = 0;
flag = par_unsetflags;
break;
case 'm':
flag(PARFLAG_MOVE);
break;
case 'i':
cmd.add = plus;
break;
case 'f':
cmd.fix = plus;
break;
case 'c':
cmd.pxx = plus;
break;
case 'v':
if (plus)
cmd.loglevel++;
else
cmd.loglevel--;
break;
case 'p':
case 'n':
pervol = (*p == 'p');
while (isspace(*++p))
;
if (!*p) {
argv++;
argc--;
p = argv[1];
}
if (!isdigit(*p)) {
fprintf(stderr, "Value expected!\n");
} else {
cmd.volumes = 0;
do {
cmd.volumes *= 10;
cmd.volumes += *p - '0';
} while (isdigit(*++p));
p--;
}
break;
case 'H':
flag(PARFLAG_CTRL);
break;
case 'C':
flag(PARFLAG_CASE);
break;
case 'k':
flag(PARFLAG_KEEP);
break;
case 's':
smart = plus;
break;
case '?':
case 'h':
return usage();
default:
fprintf(stderr,
"Unknown switch: '%c'\n", *p);
break;
}
continue;
}
if (!cmd.action) {
switch (argv[1][0]) {
case 'c':
case 'C':
cmd.action = ACTION_CHECK;
break;
case 'm':
case 'M':
cmd.action = ACTION_MIX;
break;
case 'r':
case 'R':
cmd.action = ACTION_RESTORE;
break;
case 'a':
case 'A':
cmd.action = ACTION_ADD;
break;
case 'i':
case 'I':
cmd.action = ACTION_TEXT_UI;
break;
default:
fprintf(stderr, "Unknown command: '%s'\n",
argv[1]);
break;
}
continue;
}
switch (cmd.action) {
default:
cmd.action = ACTION_CHECK;
/*\ FALLTHROUGH \*/
case ACTION_CHECK:
case ACTION_RESTORE:
fprintf(stderr, "Checking %s\n", argv[1]);
par = read_par_header(unist(argv[1]), 0, 0, 0);
if (!par) {
fail = 2;
continue;
}
if (check_par(par) < 0) fail = 1;
free_par(par);
par = 0;
break;
case ACTION_ADD:
fprintf(stderr, "Adding to %s\n", argv[1]);
par = read_par_header(unist(argv[1]), 1, 0, 0);
if (!par) return 2;
cmd.action = ACTION_ADDING;
break;
case ACTION_ADDING:
par_add_file(par, find_file_name(unist(argv[1]), 1));
break;
case ACTION_MIX:
fprintf(stderr, "Unknown argument: '%s'\n", argv[1]);
break;
case ACTION_TEXT_UI:
par_load(unist(argv[1]));
break;
}
}
}
|
