static int list(const char *filename, int arglen, char *args[]) {
xar_t x;
xar_iter_t i;
xar_file_t f;
x = xar_open(filename, READ);
if( !x ) {
fprintf(stderr, "Error opening xar archive: %s\n", filename);
exit(1);
}
i = xar_iter_new();
if( !i ) {
fprintf(stderr, "Error creating xar iterator\n");
exit(1);
}
for(f = xar_file_first(x, i); f; f = xar_file_next(i)) {
print_file(f);
}
xar_iter_free(i);
xar_close(x);
return Err;
}
int main(int argc, char *argv[]) {
char *file = argv[1];
xar_t x;
xar_iter_t ifile, iprop, iattr;
xar_file_t f;
const char *key;
int fd;
off_t off;
xar_header_t hdr;
x = xar_open(file, READ);
if( !x ) {
fprintf(stderr, "Error opening archive\n");
exit(1);
}
fd = open(file, O_RDONLY);
if( fd < 0 ) {
fprintf(stderr, "Error opening archive\n");
exit(1);
}
read(fd, &hdr, sizeof(hdr));
hdr.size = htons(hdr.size);
hdr.toc_length_compressed = xar_ntoh64(hdr.toc_length_compressed);
HeapOff = hdr.size + hdr.toc_length_compressed;
ifile = xar_iter_new();
if( !ifile ) {
fprintf(stderr, "Error creating file iterator");
exit(1);
}
for(f = xar_file_first(x, ifile); f; f = xar_file_next(ifile)) {
prop_check(fd, x, f);
}
}
int pkg_toc_process(const char *path, const char *toc) {
u_int32_t pkgid;
xar_t x;
xar_iter_t i;
xar_file_t f;
struct vfs_fake_stat sb;
if (!(x = xar_open(path, READ))) {
Log(LOG_ERROR, "failed opening package %s", path);
return EXIT_FAILURE;
}
xar_register_errhandler(x, pkg_xar_err_callback, NULL);
if (!(i = xar_iter_new())) {
Log(LOG_ERROR, "failed getting new xar iter in pkg %s", path);
return EXIT_FAILURE;
}
db_pkg_remove(path);
pkgid = db_pkg_add(path);
fprintf(stderr, "id: %d\n", pkgid);
for (f = xar_file_first(x, i); f; f = xar_file_next(i)) {
char *size = xar_get_size(x, f);
char *xpath = xar_get_path(f);
char *xtype = xar_get_type(x, f);
char *mode = xar_get_mode(x, f);
char *user = xar_get_owner(x, f);
char *group = xar_get_group(x, f);
char *mtime = xar_get_mtime(x, f);
const char *offset;
char type = 'u';
/* * (f)ile, (d)irectory, (l)ink, (p)ipe
* f(i)fo, (c)haracter, (b)lock, (s)ocket,
* (u)ndefined
*/
if (!strcasecmp(xtype, "file")) {
xar_prop_get(f, "data/offset", &offset);
type = 'f';
} else {
offset = "0";
if (!strcasecmp(xtype, "directory"))
type = 'd';
else if (!strcasecmp(xtype, "hardlink"))
type = 'l';
else if (!strcasecmp(xtype, "symlink"))
type = 'l';
}
#if 0
/*
* what we gonna do with target?
*/
printf("%s: %s %8s/%-8s %10s %s %s @ %s\n", xtype, mode, user,
group, size, mtime, xpath, offset);
db_query(QUERY_INT,
"INSERT INTO files (package, path, type, owner, group, size, offset, ctime, mode) VALUES (%lu, '%s', '%s', %s, %s, %s, %s, %s, %s, %s);",
pkgid, xpath, type, user, group, size, offset, mtime);
#endif
free(mtime);
free(group);
free(user);
free(mode);
free(xtype);
free(xpath);
free(size);
}
return EXIT_SUCCESS;
}
std::map<std::string, std::string> Extract(std::string file, std::string prefix) {
std::map<std::string, std::string> files;
#ifdef HAVE_LIBXAR
xar_t x;
xar_iter_t xi;
xar_file_t xf;
xar_stream xs;
char buffer[8192];
x = xar_open(file.c_str(), READ);
if (x == nullptr) {
std::cerr << "Could not open xar archive" << std::endl;
}
xi = xar_iter_new();
if (xi == nullptr) {
xar_close(x);
std::cerr << "Could not read xar archive" << std::endl;
}
for (xf = xar_file_first(x, xi); xf != nullptr; xf = xar_file_next(xi)) {
char *path = xar_get_path(xf);
const char *type;
xar_prop_get(xf, "type", &type);
if (type == nullptr) {
std::cerr << "File has no type" << std::endl;
free(path);
continue;
}
if (std::strcmp(type, "file") != 0) {
free(path);
continue;
}
if (xar_extract_tostream_init(x, xf, &xs) != XAR_STREAM_OK) {
std::cerr << "Error initializing stream" << std::endl;
free(path);
continue;
}
const std::string fileName = prefix + util::uuid::UuidToString(util::uuid::GenerateUUID());
// Write bitcode to file
std::FILE *output = std::fopen(fileName.c_str(), "wb");
if (output == nullptr) {
std::cerr << "Error opening output file" << std::endl;
continue;
}
xs.avail_out = sizeof(buffer);
xs.next_out = buffer;
int32_t ret;
while ((ret = xar_extract_tostream(&xs)) != XAR_STREAM_END) {
if (ret == XAR_STREAM_ERR) {
std::cerr << "Error extracting stream" << std::endl;
break;
}
std::fwrite(buffer, sizeof(char), sizeof(buffer) - xs.avail_out, output);
xs.avail_out = sizeof(buffer);
xs.next_out = buffer;
}
if (xar_extract_tostream_end(&xs) != XAR_STREAM_OK) {
std::cerr << "Error ending stream" << std::endl;
}
std::fclose(output);
// Add to list of extracted files
files[std::string(path)] = fileName;
free(path);
}
xar_iter_free(xi);
xar_close(x);
#endif
return files;
}
int main(int argc, char *argv[]) {
xar_t x;
xar_iter_t i;
xar_file_t f;
xar_stream s;
char buffer[8192];
x = xar_open(argv[1], READ);
if( !x ) {
fprintf(stderr, "Error opening archive\n");
exit(1);
}
xar_register_errhandler(x, err_callback, NULL);
i = xar_iter_new();
if( !i ) {
fprintf(stderr, "Error creating xar iterator\n");
exit(1);
}
for(f = xar_file_first(x, i); f; f = xar_file_next(i)) {
char *path;
const char *type;
int32_t ret;
int fd;
path = xar_get_path(f);
xar_prop_get(f, "type", &type);
if( !type ) {
fprintf(stderr, "File has no type %s\n", path);
free(path);
continue;
}
if( strcmp(type, "file") != 0 ) {
fprintf(stderr, "Skipping %s\n", path);
free(path);
continue;
}
fprintf(stderr, "Extracting %s\n", path);
if( xar_extract_tostream_init(x, f, &s) != XAR_STREAM_OK ) {
fprintf(stderr, "Error initializing stream %s\n", path);
free(path);
continue;
}
fd = open(path, O_CREAT|O_WRONLY, S_IRUSR|S_IWUSR);
if( !fd ) {
fprintf(stderr, "Error opening output file %s\n", path);
free(path);
continue;
}
s.avail_out = sizeof(buffer);
s.next_out = buffer;
while( (ret = xar_extract_tostream(&s)) != XAR_STREAM_END ) {
if( ret == XAR_STREAM_ERR ) {
fprintf(stderr, "Error extracting stream %s\n", path);
exit(2);
}
write(fd, buffer, sizeof(buffer)-s.avail_out);
s.avail_out = sizeof(buffer);
s.next_out = buffer;
}
if( xar_extract_tostream_end(&s) != XAR_STREAM_OK ) {
fprintf(stderr, "Error ending stream %s\n", path);
}
close(fd);
free(path);
}
}
static int extract(const char *filename, int arglen, char *args[]) {
xar_t x;
xar_iter_t i;
xar_file_t f;
int files_extracted = 0;
x = xar_open(filename, READ);
if( !x ) {
fprintf(stderr, "Error opening xar archive: %s\n", filename);
exit(1);
}
xar_register_errhandler(x, err_callback, NULL);
if( Perms == SYMBOLIC ) {
xar_opt_set(x, XAR_OPT_OWNERSHIP, XAR_OPT_VAL_SYMBOLIC);
}
if( Perms == NUMERIC ) {
xar_opt_set(x, XAR_OPT_OWNERSHIP, XAR_OPT_VAL_NUMERIC);
}
if ( Rsize != NULL ) {
xar_opt_set(x, XAR_OPT_RSIZE, Rsize);
}
i = xar_iter_new();
if( !i ) {
fprintf(stderr, "Error creating xar iterator\n");
exit(1);
}
for(f = xar_file_first(x, i); f; f = xar_file_next(i)) {
int matched = 0;
int exclude_match = 1;
struct lnode *i;
char *path = xar_get_path(f);
if( args[0] ) {
int i;
for(i = 0; args[i]; i++) {
if( strcmp(path, args[i]) == 0 ) {
matched = 1;
break;
}
}
} else {
matched = 1;
}
for( i = Exclude; i; i=i->next ) {
exclude_match = regexec(&i->reg, path, 0, NULL, 0);
if( !exclude_match )
break;
}
if( !exclude_match ) {
if( Verbose )
printf("Excluding %s\n", path);
free(path);
continue;
}
if( matched ) {
files_extracted++;
print_file(f);
xar_extract(x, f);
}
free(path);
}
if( args[0] && (files_extracted == 0) ) {
fprintf(stderr, "No files matched extraction criteria.\n");
Err = 3;
}
if( Subdoc )
extract_subdoc(x, NULL);
xar_iter_free(i);
if( xar_close(x) != 0 ) {
fprintf(stderr, "Error extracting the archive\n");
if( !Err )
Err = 42;
}
return Err;
}
/* replace_sign: rip out all current signatures and certs and insert a new pair
Since libxar is currently not capable of doing this directly, we have to create a new xar archive,
copy all the files and options from the current archive, and sign the new archive
*/
static void replace_sign(const char *filename) {
xar_t old_xar, new_xar;
xar_signature_t sig;
char *new_xar_path = (char *)malloc(15);
strncpy(new_xar_path, "/tmp/xar.XXXXX", 15);
new_xar_path = mktemp(new_xar_path);
char *systemcall;
int err;
// open both archives
old_xar = xar_open(filename, READ);
if ( old_xar == NULL ) {
fprintf(stderr, "Could not open archive %s!\n", filename);
exit(1);
}
new_xar = xar_open(new_xar_path, WRITE);
if( !new_xar ) {
fprintf(stderr, "Error creating new archive %s\n", new_xar_path);
exit(1);
}
// install new signature and new certs in new_xar
sig = xar_signature_new(new_xar, "RSA", SigSize, &signingCallback, NULL);
if ( LeafCertPath )
insert_cert(sig, LeafCertPath);
if ( IntermediateCertPath )
insert_cert(sig, IntermediateCertPath);
// copy options
char *opts[6] = {XAR_OPT_TOCCKSUM, XAR_OPT_COMPRESSION, XAR_OPT_COALESCE, XAR_OPT_LINKSAME, XAR_OPT_RSIZE, XAR_OPT_OWNERSHIP};
int i;
const char *opt;
for (i=0; i<6; i++) {
opt = xar_opt_get(old_xar, opts[i]);
if (opt)
xar_opt_set(new_xar, opts[i], opt);
}
// skip copy subdocs for now since we don't use them yet
// copy files
xar_iter_t iter = xar_iter_new();
xar_file_t f = xar_file_first(old_xar, iter);
// xar_file_next iterates the archive depth-first, i.e. all children are enumerated before the siblings.
const char *name;
char *f_dirname, *stack_top_dirname;
stack s_new = stack_new();
stack s_old = stack_new();
xar_file_t last_copied = NULL, last_added;
xar_iter_t loopIter = xar_iter_new();
xar_file_t current_xar_file;
for (current_xar_file = xar_file_first(old_xar, loopIter); current_xar_file; current_xar_file = xar_file_next(loopIter))
{
printf("old_xar -> %s (parent: %s)\n",xar_get_path(current_xar_file),XAR_FILE(current_xar_file)->parent?xar_get_path(XAR_FILE(current_xar_file)->parent):"(nil)");
}
do {
// parent is the parent in the new archive!
// 3 cases:
// 1. the file has no parent. Happens for every file at the top level of the archive.
// 2. the file's parent is the last file we added. Happens while descending down a path
// 3. the file's parent is one of the ancestors of the last file (and not NULL, that would be case 1)
// that means we either go back up the tree and add a sibling of one of the ancestors, or we add a
// sibling on the same level
xar_prop_get(f, "name", &name); // filename, without any path info
if (!XAR_FILE(f)->parent) { // case 1
printf("root: %s\n",xar_get_path(f));
last_added = xar_add_from_archive(new_xar, NULL, name, old_xar, f);
last_copied = f;
stack_push(s_new, (void *)last_added);
stack_push(s_old, (void *)last_copied);
} else if (f->parent == last_copied) { // case 2
printf("child: %s -> %s\n",xar_get_path(f->parent),xar_get_path(f));
last_added = xar_add_from_archive(new_xar, last_added, name, old_xar, f);
last_copied = f;
stack_push(s_new, (void *)last_added);
stack_push(s_old, (void *)last_copied);
} else { // case 3
printf("searching for parent: %s ?\n",xar_get_path(f));
while (XAR_FILE(f)->parent != XAR_FILE(s_old->top->data)->parent) {
printf("popping: %s\n",xar_get_path(XAR_FILE(s_old->top->data)));
stack_pop(s_new);
stack_pop(s_old);
}
printf("found: %s -> %s\n",xar_get_path(XAR_FILE(s_new->top->data)),xar_get_path(f));
stack_pop(s_new);
stack_pop(s_old);
last_added = xar_add_from_archive(new_xar, (xar_file_t)(s_new->top->data), name, old_xar, f);
last_copied = f;
stack_push(s_new, (void *)last_added);
stack_push(s_old, (void *)last_copied);
}
} while (f = xar_file_next(iter));
loopIter = xar_iter_new();
for (current_xar_file = xar_file_first(new_xar, loopIter); current_xar_file; current_xar_file = xar_file_next(loopIter))
{
char * current_path = xar_get_path(current_xar_file);
printf("new_xar -> %s\n",current_path);
}
xar_iter_free(iter);
stack_free(s_new);
stack_free(s_old);
if( xar_close(new_xar) != 0 ) {
fprintf(stderr, "Error creating the archive\n");
if( !Err )
Err = 42;
}
xar_close(old_xar);
// write signature offset to file (have to re-open so xar_close can figure out the correct offset)
new_xar = xar_open(new_xar_path, READ);
if( !new_xar ) {
fprintf(stderr, "Error re-opening new archive %s\n", new_xar_path);
unlink(new_xar_path);
exit(1);
}
if (extract_sig_offset(new_xar, SigOffsetDumpPath)) {
xar_close(new_xar);
unlink(new_xar_path);
exit(1);
}
xar_close(new_xar);
// delete old archive, move new in its place
unlink(filename);
asprintf(&systemcall, "cp \"%s\" \"%s\"", new_xar_path, filename);
err = system(systemcall);
if (err) {
fprintf(stderr, "Could not copy new archive to final location (system() returned %i)\n", err);
unlink(new_xar_path);
exit(1);
}
// Delete the tmp archive
unlink(new_xar_path);
free(systemcall);
}
static int list(const char *filename, int arglen, char *args[]) {
xar_t x;
xar_iter_t i;
xar_file_t f;
int argi = 0;
struct lnode *list_files = NULL;
struct lnode *list_tail = NULL;
struct lnode *lnodei = NULL;
for(argi = 0; args[argi]; argi++) {
struct lnode *tmp;
int err;
tmp = malloc(sizeof(struct lnode));
tmp->str = strdup(args[argi]);
tmp->next = NULL;
err = regcomp(&tmp->reg, tmp->str, REG_NOSUB);
if( err ) {
char errstr[1024];
regerror(err, &tmp->reg, errstr, sizeof(errstr));
printf("Error with regular expression %s: %s\n", tmp->str, errstr);
exit(1);
}
if( list_files == NULL ) {
list_files = tmp;
list_tail = tmp;
} else {
list_tail->next = tmp;
list_tail = tmp;
}
}
x = xar_open(filename, READ);
if( !x ) {
fprintf(stderr, "Error opening xar archive: %s\n", filename);
exit(1);
}
i = xar_iter_new();
if( !i ) {
fprintf(stderr, "Error creating xar iterator\n");
exit(1);
}
for(f = xar_file_first(x, i); f; f = xar_file_next(i)) {
int matched = 0;
if( args[0] ) {
char *path = xar_get_path(f);
if (xar_path_issane(path) == 0) {
fprintf(stderr, "Warning, archive contains invalid path: %s\n", path);
free(path);
continue;
}
for(lnodei = list_files; lnodei != NULL; lnodei = lnodei->next) {
int list_match = 1;
list_match = regexec(&lnodei->reg, path, 0, NULL, 0);
if( !list_match ) {
matched = 1;
break;
}
}
free(path);
} else {
matched = 1;
}
if( matched )
print_file(x, f);
}
xar_iter_free(i);
xar_close(x);
for(lnodei = list_files; lnodei != NULL; ) {
struct lnode *tmp;
free(lnodei->str);
regfree(&lnodei->reg);
tmp = lnodei;
lnodei = lnodei->next;
free(tmp);
}
return Err;
}
static int extract(const char *filename, int arglen, char *args[]) {
xar_t x;
xar_iter_t i;
xar_file_t f;
int files_extracted = 0;
int argi;
struct lnode *extract_files = NULL;
struct lnode *extract_tail = NULL;
struct lnode *lnodei = NULL;
struct lnode *dirs = NULL;
for(argi = 0; args[argi]; argi++) {
struct lnode *tmp;
int err;
tmp = malloc(sizeof(struct lnode));
tmp->str = strdup(args[argi]);
tmp->next = NULL;
err = regcomp(&tmp->reg, tmp->str, REG_NOSUB);
if( err ) {
char errstr[1024];
regerror(err, &tmp->reg, errstr, sizeof(errstr));
printf("Error with regular expression %s: %s\n", tmp->str, errstr);
exit(1);
}
if( extract_files == NULL ) {
extract_files = tmp;
extract_tail = tmp;
} else {
extract_tail->next = tmp;
extract_tail = tmp;
}
/* Add a clause for recursive extraction */
tmp = malloc(sizeof(struct lnode));
asprintf(&tmp->str, "%s/.*", args[argi]);
tmp->next = NULL;
err = regcomp(&tmp->reg, tmp->str, REG_NOSUB);
if( err ) {
char errstr[1024];
regerror(err, &tmp->reg, errstr, sizeof(errstr));
printf("Error with regular expression %s: %s\n", tmp->str, errstr);
exit(1);
}
if( extract_files == NULL ) {
extract_files = tmp;
extract_tail = tmp;
} else {
extract_tail->next = tmp;
extract_tail = tmp;
}
}
x = xar_open(filename, READ);
if( !x ) {
fprintf(stderr, "Error opening xar archive: %s\n", filename);
exit(1);
}
if(Chdir) {
if( chdir(Chdir) != 0 ) {
fprintf(stderr, "Unable to chdir to %s\n", Chdir);
exit(1);
}
}
xar_register_errhandler(x, err_callback, NULL);
if( Perms == SYMBOLIC ) {
xar_opt_set(x, XAR_OPT_OWNERSHIP, XAR_OPT_VAL_SYMBOLIC);
}
if( Perms == NUMERIC ) {
xar_opt_set(x, XAR_OPT_OWNERSHIP, XAR_OPT_VAL_NUMERIC);
}
if ( Rsize != NULL ) {
xar_opt_set(x, XAR_OPT_RSIZE, Rsize);
}
if( SaveSuid ) {
xar_opt_set(x, XAR_OPT_SAVESUID, XAR_OPT_VAL_TRUE);
}
i = xar_iter_new();
if( !i ) {
fprintf(stderr, "Error creating xar iterator\n");
exit(1);
}
for(f = xar_file_first(x, i); f; f = xar_file_next(i)) {
int matched = 0;
int exclude_match = 1;
struct lnode *i;
char *path = xar_get_path(f);
if( args[0] ) {
for(i = extract_files; i != NULL; i = i->next) {
int extract_match = 1;
extract_match = regexec(&i->reg, path, 0, NULL, 0);
if( !extract_match ) {
matched = 1;
break;
}
}
} else {
matched = 1;
}
for( i = Exclude; i; i=i->next ) {
exclude_match = regexec(&i->reg, path, 0, NULL, 0);
if( !exclude_match )
break;
}
if( !exclude_match ) {
if( Verbose )
printf("Excluding %s\n", path);
free(path);
continue;
}
if (!xar_path_issane(path)) {
if (Verbose)
printf("Warning, not extracting file \"%s\" because it's path is invalid.\n", path);
free(path);
continue;
}
if( matched ) {
struct stat sb;
if( NoOverwrite && (lstat(path, &sb) == 0) ) {
printf("%s already exists, not overwriting\n", path);
} else {
const char *prop = NULL;
int deferred = 0;
if( xar_prop_get(f, "type", &prop) == 0 ) {
if( strcmp(prop, "directory") == 0 ) {
struct lnode *tmpl = calloc(sizeof(struct lnode),1);
tmpl->str = (char *)f;
tmpl->next = dirs;
dirs = tmpl;
deferred = 1;
}
}
if( ! deferred ) {
files_extracted++;
print_file(x, f);
xar_extract(x, f);
}
}
}
free(path);
}
for(lnodei = dirs; lnodei; lnodei = lnodei->next) {
files_extracted++;
print_file(x,(xar_file_t)lnodei->str);
xar_extract(x, (xar_file_t)lnodei->str);
}
if( args[0] && (files_extracted == 0) ) {
fprintf(stderr, "No files matched extraction criteria.\n");
Err = 3;
}
if( Subdoc )
extract_subdoc(x, NULL);
xar_iter_free(i);
if( xar_close(x) != 0 ) {
fprintf(stderr, "Error extracting the archive\n");
if( !Err )
Err = 42;
}
for(lnodei = extract_files; lnodei != NULL; ) {
struct lnode *tmp;
free(lnodei->str);
regfree(&lnodei->reg);
tmp = lnodei;
lnodei = lnodei->next;
free(tmp);
}
return Err;
}
