int
packing_append_file(struct packing *pack, const char *filepath, const char *newpath)
{
int fd;
int len;
char linkdest[MAXPATHLEN];
char buf[BUFSIZ];
int retcode = EPKG_OK;
struct stat st;
archive_entry_clear(pack->entry);
archive_entry_copy_sourcepath(pack->entry, filepath);
retcode = archive_read_disk_entry_from_file(pack->aread, pack->entry, -1, NULL);
if (retcode != ARCHIVE_OK) {
pkg_emit_event(PKG_EVENT_ARCHIVE_ERROR, /*argc*/2,
filepath, pack->aread);
retcode = EPKG_FATAL;
goto cleanup;
}
retcode = EPKG_OK;
lstat(filepath, &st);
archive_entry_copy_stat(pack->entry, &st);
if (S_ISLNK(st.st_mode)) {
bzero(linkdest, MAXPATHLEN);
readlink(filepath, linkdest, MAXPATHLEN);
archive_entry_set_symlink(pack->entry, linkdest);
}
if (newpath != NULL)
archive_entry_set_pathname(pack->entry, newpath);
if (archive_entry_filetype(pack->entry) != AE_IFREG) {
archive_entry_set_size(pack->entry, 0);
}
archive_write_header(pack->awrite, pack->entry);
if (archive_entry_size(pack->entry) > 0) {
if ((fd = open(filepath, O_RDONLY)) < 0) {
pkg_emit_event(PKG_EVENT_IO_ERROR, /*argc*/3,
"open", filepath, strerror(errno));
retcode = EPKG_FATAL;
goto cleanup;
}
while ((len = read(fd, buf, sizeof(buf))) > 0 )
archive_write_data(pack->awrite, buf, len);
close(fd);
}
cleanup:
archive_entry_clear(pack->entry);
return (retcode);
}
static int ar_entry_sourcepath(lua_State *L) {
struct archive_entry* self = *ar_entry_check(L, 1);
int is_set;
if ( NULL == self ) return 0;
is_set = ( lua_gettop(L) == 2 );
lua_pushstring(L, archive_entry_sourcepath(self));
if ( is_set ) {
archive_entry_copy_sourcepath(self, lua_tostring(L, 2));
}
return 1;
}
int
packing_append_file_attr(struct packing *pack, const char *filepath,
const char *newpath, const char *uname, const char *gname, mode_t perm,
u_long fflags)
{
int fd;
int retcode = EPKG_OK;
int ret;
time_t source_time;
struct stat st;
struct archive_entry *entry, *sparse_entry;
bool unset_timestamp;
const char *source_date_epoch;
char buf[32768];
int len;
entry = archive_entry_new();
archive_entry_copy_sourcepath(entry, filepath);
pkg_debug(2, "Packing file '%s'", filepath);
if (lstat(filepath, &st) != 0) {
pkg_emit_errno("lstat", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
ret = archive_read_disk_entry_from_file(pack->aread, entry, -1,
&st);
if (ret != ARCHIVE_OK) {
pkg_emit_error("%s: %s", filepath,
archive_error_string(pack->aread));
retcode = EPKG_FATAL;
goto cleanup;
}
if (newpath != NULL)
archive_entry_set_pathname(entry, newpath);
if (archive_entry_filetype(entry) != AE_IFREG) {
archive_entry_set_size(entry, 0);
}
if (uname != NULL && uname[0] != '\0') {
archive_entry_set_uname(entry, uname);
}
if (gname != NULL && gname[0] != '\0') {
archive_entry_set_gname(entry, gname);
}
if (fflags > 0)
archive_entry_set_fflags(entry, fflags, 0);
if (perm != 0)
archive_entry_set_perm(entry, perm);
unset_timestamp = pkg_object_bool(pkg_config_get("UNSET_TIMESTAMP"));
if (unset_timestamp) {
archive_entry_unset_atime(entry);
archive_entry_unset_ctime(entry);
archive_entry_unset_mtime(entry);
archive_entry_unset_birthtime(entry);
}
if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")) != NULL) {
if (source_date_epoch[strspn(source_date_epoch, "0123456789")] != '\0') {
pkg_emit_error("Bad environment variable "
"SOURCE_DATE_EPOCH: %s", source_date_epoch);
retcode = EPKG_FATAL;
goto cleanup;
}
source_time = strtoll(source_date_epoch, NULL, 10);
archive_entry_set_atime(entry, source_time, 0);
archive_entry_set_ctime(entry, source_time, 0);
archive_entry_set_mtime(entry, source_time, 0);
archive_entry_set_birthtime(entry, source_time, 0);
}
archive_entry_linkify(pack->resolver, &entry, &sparse_entry);
if (sparse_entry != NULL && entry == NULL)
entry = sparse_entry;
archive_write_header(pack->awrite, entry);
if (archive_entry_size(entry) <= 0)
goto cleanup;
if ((fd = open(filepath, O_RDONLY)) < 0) {
pkg_emit_errno("open", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
while ((len = read(fd, buf, sizeof(buf))) > 0) {
if (archive_write_data(pack->awrite, buf, len) == -1) {
pkg_emit_errno("archive_write_data", "archive write error");
retcode = EPKG_FATAL;
break;
}
}
if (len == -1) {
pkg_emit_errno("read", "file read error");
retcode = EPKG_FATAL;
}
close(fd);
cleanup:
archive_entry_free(entry);
return (retcode);
}
/*
* This is used by both out mode (to copy objects from disk into
* an archive) and pass mode (to copy objects from disk to
* an archive_write_disk "archive").
*/
static int
file_to_archive(struct cpio *cpio, const char *srcpath)
{
const char *destpath;
struct archive_entry *entry, *spare;
size_t len;
const char *p;
int r;
/*
* Create an archive_entry describing the source file.
*
*/
entry = archive_entry_new();
if (entry == NULL)
lafe_errc(1, 0, "Couldn't allocate entry");
archive_entry_copy_sourcepath(entry, srcpath);
r = archive_read_disk_entry_from_file(cpio->archive_read_disk,
entry, -1, NULL);
if (r < ARCHIVE_FAILED)
lafe_errc(1, 0, "%s",
archive_error_string(cpio->archive_read_disk));
if (r < ARCHIVE_OK)
lafe_warnc(0, "%s",
archive_error_string(cpio->archive_read_disk));
if (r <= ARCHIVE_FAILED) {
cpio->return_value = 1;
return (r);
}
if (cpio->uid_override >= 0)
archive_entry_set_uid(entry, cpio->uid_override);
if (cpio->gid_override >= 0)
archive_entry_set_gid(entry, cpio->gid_override);
/*
* Generate a destination path for this entry.
* "destination path" is the name to which it will be copied in
* pass mode or the name that will go into the archive in
* output mode.
*/
destpath = srcpath;
if (cpio->destdir) {
len = strlen(cpio->destdir) + strlen(srcpath) + 8;
if (len >= cpio->pass_destpath_alloc) {
while (len >= cpio->pass_destpath_alloc) {
cpio->pass_destpath_alloc += 512;
cpio->pass_destpath_alloc *= 2;
}
free(cpio->pass_destpath);
cpio->pass_destpath = malloc(cpio->pass_destpath_alloc);
if (cpio->pass_destpath == NULL)
lafe_errc(1, ENOMEM,
"Can't allocate path buffer");
}
strcpy(cpio->pass_destpath, cpio->destdir);
p = srcpath;
while (p[0] == '/')
++p;
strcat(cpio->pass_destpath, p);
destpath = cpio->pass_destpath;
}
if (cpio->option_rename)
destpath = cpio_rename(destpath);
if (destpath == NULL)
return (0);
archive_entry_copy_pathname(entry, destpath);
/*
* If we're trying to preserve hardlinks, match them here.
*/
spare = NULL;
if (cpio->linkresolver != NULL
&& archive_entry_filetype(entry) != AE_IFDIR) {
archive_entry_linkify(cpio->linkresolver, &entry, &spare);
}
if (entry != NULL) {
r = entry_to_archive(cpio, entry);
archive_entry_free(entry);
if (spare != NULL) {
if (r == 0)
r = entry_to_archive(cpio, spare);
archive_entry_free(spare);
}
}
return (r);
}
int
packing_append_file_attr(struct packing *pack, const char *filepath,
const char *newpath, const char *uname, const char *gname, mode_t perm)
{
int fd;
int len;
char buf[BUFSIZ];
int retcode = EPKG_OK;
int ret;
struct stat st;
struct archive_entry *entry, *sparse_entry;
/* ugly hack for python and emacs */
/*char *p;*/
/*bool unset_timestamp = true;*/
entry = archive_entry_new();
archive_entry_copy_sourcepath(entry, filepath);
if (lstat(filepath, &st) != 0) {
pkg_emit_errno("lstat", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
ret = archive_read_disk_entry_from_file(pack->aread, entry, -1,
&st);
if (ret != ARCHIVE_OK) {
pkg_emit_error("%s: %s", filepath,
archive_error_string(pack->aread));
retcode = EPKG_FATAL;
goto cleanup;
}
if (newpath != NULL)
archive_entry_set_pathname(entry, newpath);
if (archive_entry_filetype(entry) != AE_IFREG) {
archive_entry_set_size(entry, 0);
}
if (uname != NULL && uname[0] != '\0')
archive_entry_set_uname(entry, uname);
if (gname != NULL && gname[0] != '\0')
archive_entry_set_gname(entry, gname);
if (perm != 0)
archive_entry_set_perm(entry, perm);
/* XXX ugly hack for python and emacs */
/* p = strrchr(filepath, '.');
if (p != NULL && (strcmp(p, ".pyc") == 0 ||
strcmp(p, ".py") == 0 ||
strcmp(p, ".pyo") == 0 ||
strcmp(p, ".elc") == 0 ||
strcmp(p, ".el") == 0
))
unset_timestamp = false;
if (unset_timestamp) {
archive_entry_unset_atime(entry);
archive_entry_unset_ctime(entry);
archive_entry_unset_mtime(entry);
archive_entry_unset_birthtime(entry);
}*/
archive_entry_linkify(pack->resolver, &entry, &sparse_entry);
if (sparse_entry != NULL && entry == NULL)
entry = sparse_entry;
archive_write_header(pack->awrite, entry);
if (archive_entry_size(entry) > 0) {
if ((fd = open(filepath, O_RDONLY)) < 0) {
pkg_emit_errno("open", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
while ((len = read(fd, buf, sizeof(buf))) > 0)
archive_write_data(pack->awrite, buf, len);
close(fd);
}
cleanup:
archive_entry_free(entry);
return (retcode);
}
/*
* Add the file or dir hierarchy named by 'path' to the archive
*/
static void
write_hierarchy(struct bsdtar *bsdtar, struct archive *a, const char *path)
{
struct archive_entry *entry = NULL, *spare_entry = NULL;
struct tree *tree;
char symlink_mode = bsdtar->symlink_mode;
dev_t first_dev = 0;
int dev_recorded = 0;
int tree_ret;
tree = tree_open(path);
if (!tree) {
lafe_warnc(errno, "%s: Cannot open", path);
bsdtar->return_value = 1;
return;
}
while ((tree_ret = tree_next(tree)) != 0) {
int r;
const char *name = tree_current_path(tree);
const struct stat *st = NULL; /* info to use for this entry */
const struct stat *lst = NULL; /* lstat() information */
int descend;
if (tree_ret == TREE_ERROR_FATAL)
lafe_errc(1, tree_errno(tree),
"%s: Unable to continue traversing directory tree",
name);
if (tree_ret == TREE_ERROR_DIR) {
lafe_warnc(errno,
"%s: Couldn't visit directory", name);
bsdtar->return_value = 1;
}
if (tree_ret != TREE_REGULAR)
continue;
/*
* If this file/dir is excluded by a filename
* pattern, skip it.
*/
if (lafe_excluded(bsdtar->matching, name))
continue;
/*
* Get lstat() info from the tree library.
*/
lst = tree_current_lstat(tree);
if (lst == NULL) {
/* Couldn't lstat(); must not exist. */
lafe_warnc(errno, "%s: Cannot stat", name);
/* Return error if files disappear during traverse. */
bsdtar->return_value = 1;
continue;
}
/*
* Distinguish 'L'/'P'/'H' symlink following.
*/
switch(symlink_mode) {
case 'H':
/* 'H': After the first item, rest like 'P'. */
symlink_mode = 'P';
/* 'H': First item (from command line) like 'L'. */
/* FALLTHROUGH */
case 'L':
/* 'L': Do descend through a symlink to dir. */
descend = tree_current_is_dir(tree);
/* 'L': Follow symlinks to files. */
archive_read_disk_set_symlink_logical(bsdtar->diskreader);
/* 'L': Archive symlinks as targets, if we can. */
st = tree_current_stat(tree);
if (st != NULL)
break;
/* If stat fails, we have a broken symlink;
* in that case, don't follow the link. */
/* FALLTHROUGH */
default:
/* 'P': Don't descend through a symlink to dir. */
descend = tree_current_is_physical_dir(tree);
/* 'P': Don't follow symlinks to files. */
archive_read_disk_set_symlink_physical(bsdtar->diskreader);
/* 'P': Archive symlinks as symlinks. */
st = lst;
break;
}
if (bsdtar->option_no_subdirs)
descend = 0;
/*
* Are we about to cross to a new filesystem?
*/
if (!dev_recorded) {
/* This is the initial file system. */
first_dev = lst->st_dev;
dev_recorded = 1;
} else if (lst->st_dev == first_dev) {
/* The starting file system is always acceptable. */
} else if (descend == 0) {
/* We're not descending, so no need to check. */
} else if (bsdtar->option_dont_traverse_mounts) {
descend = 0;
} else {
/* We're prepared to cross a mount point. */
/* XXX TODO: check whether this filesystem is
* synthetic and/or local. Add a new
* --local-only option to skip non-local
* filesystems. Skip synthetic filesystems
* regardless.
*
* The results should be cached, since
* tree.c doesn't usually visit a directory
* and the directory contents together. A simple
* move-to-front list should perform quite well.
*
* This is going to be heavily OS dependent:
* FreeBSD's statfs() in conjunction with getvfsbyname()
* provides all of this; NetBSD's statvfs() does
* most of it; other systems will vary.
*/
}
/*
* In -u mode, check that the file is newer than what's
* already in the archive; in all modes, obey --newerXXX flags.
*/
if (!new_enough(bsdtar, name, st)) {
if (!descend)
continue;
if (bsdtar->option_interactive &&
!yes("add '%s'", name))
continue;
tree_descend(tree);
continue;
}
archive_entry_free(entry);
entry = archive_entry_new();
archive_entry_set_pathname(entry, name);
archive_entry_copy_sourcepath(entry,
tree_current_access_path(tree));
/* Populate the archive_entry with metadata from the disk. */
/* XXX TODO: Arrange to open a regular file before
* calling this so we can pass in an fd and shorten
* the race to query metadata. The linkify dance
* makes this more complex than it might sound. */
#if defined(_WIN32) && !defined(__CYGWIN__)
/* TODO: tree.c uses stat(), which is badly broken
* on Windows. To fix this, we should
* deprecate tree_current_stat() and provide a new
* call tree_populate_entry(t, entry). This call
* would use stat() internally on POSIX and
* GetInfoByFileHandle() internally on Windows.
* This would be another step towards a tree-walker
* that can be integrated deep into libarchive.
* For now, just set st to NULL on Windows;
* archive_read_disk_entry_from_file() should
* be smart enough to use platform-appropriate
* ways to probe file information.
*/
st = NULL;
#endif
r = archive_read_disk_entry_from_file(bsdtar->diskreader,
entry, -1, st);
if (bsdtar->uid >= 0) {
archive_entry_set_uid(entry, bsdtar->uid);
if (!bsdtar->uname)
archive_entry_set_uname(entry,
archive_read_disk_uname(bsdtar->diskreader,
bsdtar->uid));
}
if (bsdtar->gid >= 0) {
archive_entry_set_gid(entry, bsdtar->gid);
if (!bsdtar->gname)
archive_entry_set_gname(entry,
archive_read_disk_gname(bsdtar->diskreader,
bsdtar->gid));
}
if (bsdtar->uname)
archive_entry_set_uname(entry, bsdtar->uname);
if (bsdtar->gname)
archive_entry_set_gname(entry, bsdtar->gname);
if (r != ARCHIVE_OK)
lafe_warnc(archive_errno(bsdtar->diskreader),
"%s", archive_error_string(bsdtar->diskreader));
if (r < ARCHIVE_WARN)
continue;
/* XXX TODO: Just use flag data from entry; avoid the
* duplicate check here. */
/*
* If this file/dir is flagged "nodump" and we're
* honoring such flags, skip this file/dir.
*/
#if defined(HAVE_STRUCT_STAT_ST_FLAGS) && defined(UF_NODUMP)
/* BSD systems store flags in struct stat */
if (bsdtar->option_honor_nodump &&
(lst->st_flags & UF_NODUMP))
continue;
#endif
#if defined(EXT2_IOC_GETFLAGS) && defined(EXT2_NODUMP_FL)
/* Linux uses ioctl to read flags. */
if (bsdtar->option_honor_nodump) {
int fd = open(name, O_RDONLY | O_NONBLOCK | O_BINARY);
if (fd >= 0) {
unsigned long fflags;
int r = ioctl(fd, EXT2_IOC_GETFLAGS, &fflags);
close(fd);
if (r >= 0 && (fflags & EXT2_NODUMP_FL))
continue;
}
}
#endif
#ifdef __APPLE__
if (bsdtar->enable_copyfile) {
/* If we're using copyfile(), ignore "._XXX" files. */
const char *bname = strrchr(name, '/');
if (bname == NULL)
bname = name;
else
++bname;
if (bname[0] == '.' && bname[1] == '_')
continue;
} else {
/* If not, drop the copyfile() data. */
archive_entry_copy_mac_metadata(entry, NULL, 0);
}
#endif
/*
* If the user vetoes this file/directory, skip it.
* We want this to be fairly late; if some other
* check would veto this file, we shouldn't bother
* the user with it.
*/
if (bsdtar->option_interactive &&
!yes("add '%s'", name))
continue;
if (descend)
tree_descend(tree);
/*
* Rewrite the pathname to be archived. If rewrite
* fails, skip the entry.
*/
if (edit_pathname(bsdtar, entry))
continue;
/* Display entry as we process it.
* This format is required by SUSv2. */
if (bsdtar->verbose)
safe_fprintf(stderr, "a %s",
archive_entry_pathname(entry));
/* Non-regular files get archived with zero size. */
if (archive_entry_filetype(entry) != AE_IFREG)
archive_entry_set_size(entry, 0);
archive_entry_linkify(bsdtar->resolver, &entry, &spare_entry);
while (entry != NULL) {
write_file(bsdtar, a, entry);
archive_entry_free(entry);
entry = spare_entry;
spare_entry = NULL;
}
if (bsdtar->verbose)
fprintf(stderr, "\n");
}
archive_entry_free(entry);
tree_close(tree);
}
/*
* Add the file or dir hierarchy named by 'path' to the archive
*/
static void
write_hierarchy(struct bsdtar *bsdtar, struct archive *a, const char *path)
{
struct archive_entry *entry = NULL, *spare_entry = NULL;
struct tree *tree;
char symlink_mode = bsdtar->symlink_mode;
dev_t first_dev = 0;
int dev_recorded = 0;
int tree_ret;
dev_t last_dev = 0;
char * fstype;
tree = tree_open(path);
if (!tree) {
bsdtar_warnc(bsdtar, errno, "%s: Cannot open", path);
bsdtar->return_value = 1;
return;
}
while ((tree_ret = tree_next(tree))) {
int r;
const char *name = tree_current_path(tree);
const struct stat *st = NULL; /* info to use for this entry */
const struct stat *lst = NULL; /* lstat() information */
int descend;
if (truncate_archive(bsdtar))
break;
if (checkpoint_archive(bsdtar, 0))
exit(1);
disk_pause(bsdtar);
if (network_select(0))
exit(1);
if (tree_ret == TREE_ERROR_FATAL)
bsdtar_errc(bsdtar, 1, tree_errno(tree),
"%s: Unable to continue traversing directory tree",
name);
if (tree_ret == TREE_ERROR_DIR) {
bsdtar_warnc(bsdtar, errno,
"%s: Couldn't visit directory", name);
bsdtar->return_value = 1;
}
if (tree_ret != TREE_REGULAR)
continue;
/*
* If this file/dir is excluded by a filename
* pattern, skip it.
*/
if (excluded(bsdtar, name))
continue;
/*
* Get lstat() info from the tree library.
*/
lst = tree_current_lstat(tree);
if (lst == NULL) {
/* Couldn't lstat(); must not exist. */
bsdtar_warnc(bsdtar, errno, "%s: Cannot stat", name);
/* Return error if files disappear during traverse. */
bsdtar->return_value = 1;
continue;
}
/*
* Distinguish 'L'/'P'/'H' symlink following.
*/
switch(symlink_mode) {
case 'H':
/* 'H': After the first item, rest like 'P'. */
symlink_mode = 'P';
/* 'H': First item (from command line) like 'L'. */
/* FALLTHROUGH */
case 'L':
/* 'L': Do descend through a symlink to dir. */
descend = tree_current_is_dir(tree);
/* 'L': Follow symlinks to files. */
archive_read_disk_set_symlink_logical(bsdtar->diskreader);
/* 'L': Archive symlinks as targets, if we can. */
st = tree_current_stat(tree);
if (st != NULL)
break;
/* If stat fails, we have a broken symlink;
* in that case, don't follow the link. */
/* FALLTHROUGH */
default:
/* 'P': Don't descend through a symlink to dir. */
descend = tree_current_is_physical_dir(tree);
/* 'P': Don't follow symlinks to files. */
archive_read_disk_set_symlink_physical(bsdtar->diskreader);
/* 'P': Archive symlinks as symlinks. */
st = lst;
break;
}
if (bsdtar->option_no_subdirs)
descend = 0;
/*
* If user has asked us not to cross mount points,
* then don't descend into a dir on a different
* device.
*/
if (!dev_recorded) {
last_dev = first_dev = lst->st_dev;
dev_recorded = 1;
}
if (bsdtar->option_dont_traverse_mounts) {
if (lst->st_dev != first_dev)
descend = 0;
}
/*
* If the user did not specify --insane-filesystems, do not
* cross into a new filesystem which is known to be synthetic.
* Note that we will archive synthetic filesystems if we are
* explicitly told to do so.
*/
if ((bsdtar->option_insane_filesystems == 0) &&
(descend != 0) &&
(lst->st_dev != last_dev)) {
fstype = getfstype(tree_current_access_path(tree));
if (fstype == NULL)
bsdtar_errc(bsdtar, 1, errno,
"%s: Error getting filesystem type",
name);
if (getfstype_issynthetic(fstype)) {
if (!bsdtar->option_quiet)
bsdtar_warnc(bsdtar, 0,
"Not descending into filesystem of type %s: %s",
fstype, name);
descend = 0;
} else {
/* This device is ok to archive. */
last_dev = lst->st_dev;
}
free(fstype);
}
/*
* In -u mode, check that the file is newer than what's
* already in the archive; in all modes, obey --newerXXX flags.
*/
if (!new_enough(bsdtar, name, st)) {
if (!descend)
continue;
if (bsdtar->option_interactive &&
!yes("add '%s'", name))
continue;
tree_descend(tree);
continue;
}
archive_entry_free(entry);
entry = archive_entry_new();
archive_entry_set_pathname(entry, name);
archive_entry_copy_sourcepath(entry,
tree_current_access_path(tree));
/* Populate the archive_entry with metadata from the disk. */
/* XXX TODO: Arrange to open a regular file before
* calling this so we can pass in an fd and shorten
* the race to query metadata. The linkify dance
* makes this more complex than it might sound. */
r = archive_read_disk_entry_from_file(bsdtar->diskreader,
entry, -1, st);
if (r != ARCHIVE_OK)
bsdtar_warnc(bsdtar, archive_errno(bsdtar->diskreader),
"%s", archive_error_string(bsdtar->diskreader));
if (r < ARCHIVE_WARN)
continue;
/* XXX TODO: Just use flag data from entry; avoid the
* duplicate check here. */
/*
* If this file/dir is flagged "nodump" and we're
* honoring such flags, skip this file/dir.
*/
#if defined(HAVE_STRUCT_STAT_ST_FLAGS) && defined(UF_NODUMP)
/* BSD systems store flags in struct stat */
if (bsdtar->option_honor_nodump &&
(lst->st_flags & UF_NODUMP))
continue;
#endif
#if defined(EXT2_NODUMP_FL)
/* Linux uses ioctl to read flags. */
if (bsdtar->option_honor_nodump) {
unsigned long fflags, dummy;
archive_entry_fflags(entry, &fflags, &dummy);
if (fflags & EXT2_NODUMP_FL)
continue;
}
#endif
/*
* Don't back up the cache directory or any files inside it.
*/
if ((lst->st_ino == bsdtar->cachedir_ino) &&
(lst->st_dev == bsdtar->cachedir_dev)) {
if (!bsdtar->option_quiet)
bsdtar_warnc(bsdtar, 0,
"Not adding cache directory to archive: %s",
name);
continue;
}
/*
* If the user vetoes this file/directory, skip it.
* We want this to be fairly late; if some other
* check would veto this file, we shouldn't bother
* the user with it.
*/
if (bsdtar->option_interactive &&
!yes("add '%s'", name))
continue;
/* Note: if user vetoes, we won't descend. */
if (descend)
tree_descend(tree);
/*
* Rewrite the pathname to be archived. If rewrite
* fails, skip the entry.
*/
if (edit_pathname(bsdtar, entry))
continue;
/*
* If this is a socket, skip the entry: POSIX requires that
* pax(1) emit a "diagnostic message" (i.e., warning) that
* sockets cannot be archived, but this can make backups of
* running systems very noisy.
*/
if (S_ISSOCK(st->st_mode))
continue;
/* Display entry as we process it.
* This format is required by SUSv2. */
if (bsdtar->verbose)
safe_fprintf(stderr, "a %s",
archive_entry_pathname(entry));
/*
* If the user hasn't specifically asked to have the access
* time stored, zero it. At the moment this usually only
* matters for files which have flags set, since the "posix
* restricted" format doesn't store access times for most
* other files.
*/
if (bsdtar->option_store_atime == 0)
archive_entry_set_atime(entry, 0, 0);
/* Non-regular files get archived with zero size. */
if (!S_ISREG(st->st_mode))
archive_entry_set_size(entry, 0);
/* Record what we're doing, for SIGINFO / SIGUSR1. */
siginfo_setinfo(bsdtar, "adding",
archive_entry_pathname(entry), archive_entry_size(entry));
archive_entry_linkify(bsdtar->resolver, &entry, &spare_entry);
/* Handle SIGINFO / SIGUSR1 request if one was made. */
siginfo_printinfo(bsdtar, 0);
while (entry != NULL) {
write_entry_backend(bsdtar, a, entry, st,
tree_current_realpath(tree));
archive_entry_free(entry);
entry = spare_entry;
spare_entry = NULL;
}
if (bsdtar->verbose)
fprintf(stderr, "\n");
}
archive_entry_free(entry);
if (tree_close(tree))
bsdtar_errc(bsdtar, 1, 0, "Error traversing directory tree");
}
/*
* Add the file or dir hierarchy named by 'path' to the archive
*/
static void
write_hierarchy(struct bsdtar *bsdtar, struct archive *a, const char *path)
{
struct archive_entry *entry = NULL, *spare_entry = NULL;
struct tree *tree;
char symlink_mode = bsdtar->symlink_mode;
dev_t first_dev = 0;
int dev_recorded = 0;
int tree_ret;
tree = tree_open(path);
if (!tree) {
bsdtar_warnc(bsdtar, errno, "%s: Cannot open", path);
bsdtar->return_value = 1;
return;
}
while ((tree_ret = tree_next(tree))) {
int r;
const char *name = tree_current_path(tree);
const struct stat *st = NULL; /* info to use for this entry */
const struct stat *lst = NULL; /* lstat() information */
int descend;
if (tree_ret == TREE_ERROR_FATAL)
bsdtar_errc(bsdtar, 1, tree_errno(tree),
"%s: Unable to continue traversing directory tree",
name);
if (tree_ret == TREE_ERROR_DIR) {
bsdtar_warnc(bsdtar, errno,
"%s: Couldn't visit directory", name);
bsdtar->return_value = 1;
}
if (tree_ret != TREE_REGULAR)
continue;
/*
* If this file/dir is excluded by a filename
* pattern, skip it.
*/
if (excluded(bsdtar, name))
continue;
/*
* Get lstat() info from the tree library.
*/
lst = tree_current_lstat(tree);
if (lst == NULL) {
/* Couldn't lstat(); must not exist. */
bsdtar_warnc(bsdtar, errno, "%s: Cannot stat", name);
/* Return error if files disappear during traverse. */
bsdtar->return_value = 1;
continue;
}
/*
* Distinguish 'L'/'P'/'H' symlink following.
*/
switch(symlink_mode) {
case 'H':
/* 'H': After the first item, rest like 'P'. */
symlink_mode = 'P';
/* 'H': First item (from command line) like 'L'. */
/* FALLTHROUGH */
case 'L':
/* 'L': Do descend through a symlink to dir. */
descend = tree_current_is_dir(tree);
/* 'L': Follow symlinks to files. */
archive_read_disk_set_symlink_logical(bsdtar->diskreader);
/* 'L': Archive symlinks as targets, if we can. */
st = tree_current_stat(tree);
if (st != NULL)
break;
/* If stat fails, we have a broken symlink;
* in that case, don't follow the link. */
/* FALLTHROUGH */
default:
/* 'P': Don't descend through a symlink to dir. */
descend = tree_current_is_physical_dir(tree);
/* 'P': Don't follow symlinks to files. */
archive_read_disk_set_symlink_physical(bsdtar->diskreader);
/* 'P': Archive symlinks as symlinks. */
st = lst;
break;
}
/*
* If user has asked us not to cross mount points,
* then don't descend into into a dir on a different
* device.
*/
if (!dev_recorded) {
first_dev = lst->st_dev;
dev_recorded = 1;
}
if (bsdtar->option_dont_traverse_mounts) {
if (lst->st_dev != first_dev)
descend = 0;
}
/*
* In -u mode, check that the file is newer than what's
* already in the archive; in all modes, obey --newerXXX flags.
*/
if (!new_enough(bsdtar, name, st))
continue;
archive_entry_free(entry);
entry = archive_entry_new();
archive_entry_set_pathname(entry, name);
archive_entry_copy_sourcepath(entry,
tree_current_access_path(tree));
/* Populate the archive_entry with metadata from the disk. */
/* XXX TODO: Arrange to open a regular file before
* calling this so we can pass in an fd and shorten
* the race to query metadata. The linkify dance
* makes this more complex than it might sound. */
r = archive_read_disk_entry_from_file(bsdtar->diskreader,
entry, -1, st);
if (r != ARCHIVE_OK)
bsdtar_warnc(bsdtar, archive_errno(bsdtar->diskreader),
archive_error_string(bsdtar->diskreader));
if (r < ARCHIVE_WARN)
continue;
/* XXX TODO: Just use flag data from entry; avoid the
* duplicate check here. */
/*
* If this file/dir is flagged "nodump" and we're
* honoring such flags, skip this file/dir.
*/
#ifdef HAVE_STRUCT_STAT_ST_FLAGS
/* BSD systems store flags in struct stat */
if (bsdtar->option_honor_nodump &&
(lst->st_flags & UF_NODUMP))
continue;
#endif
#if defined(EXT2_IOC_GETFLAGS) && defined(EXT2_NODUMP_FL)
/* Linux uses ioctl to read flags. */
if (bsdtar->option_honor_nodump) {
int fd = open(name, O_RDONLY | O_NONBLOCK);
if (fd >= 0) {
unsigned long fflags;
int r = ioctl(fd, EXT2_IOC_GETFLAGS, &fflags);
close(fd);
if (r >= 0 && (fflags & EXT2_NODUMP_FL))
continue;
}
}
#endif
/*
* If the user vetoes this file/directory, skip it.
* We want this to be fairly late; if some other
* check would veto this file, we shouldn't bother
* the user with it.
*/
if (bsdtar->option_interactive &&
!yes("add '%s'", name))
continue;
/* Note: if user vetoes, we won't descend. */
if (descend && !bsdtar->option_no_subdirs)
tree_descend(tree);
/*
* Rewrite the pathname to be archived. If rewrite
* fails, skip the entry.
*/
if (edit_pathname(bsdtar, entry))
continue;
/* Display entry as we process it.
* This format is required by SUSv2. */
if (bsdtar->verbose)
safe_fprintf(stderr, "a %s",
archive_entry_pathname(entry));
/* Non-regular files get archived with zero size. */
if (!S_ISREG(st->st_mode))
archive_entry_set_size(entry, 0);
/* Record what we're doing, for SIGINFO / SIGUSR1. */
siginfo_setinfo(bsdtar, "adding",
archive_entry_pathname(entry), archive_entry_size(entry));
archive_entry_linkify(bsdtar->resolver, &entry, &spare_entry);
/* Handle SIGINFO / SIGUSR1 request if one was made. */
siginfo_printinfo(bsdtar, 0);
while (entry != NULL) {
write_entry_backend(bsdtar, a, entry);
archive_entry_free(entry);
entry = spare_entry;
spare_entry = NULL;
}
if (bsdtar->verbose)
fprintf(stderr, "\n");
}
archive_entry_free(entry);
tree_close(tree);
}
int
packing_append_file_attr(struct packing *pack, const char *filepath,
const char *newpath, const char *uname, const char *gname, mode_t perm)
{
int fd;
char *map;
int retcode = EPKG_OK;
int ret;
struct stat st;
struct archive_entry *entry, *sparse_entry;
bool unset_timestamp;
entry = archive_entry_new();
archive_entry_copy_sourcepath(entry, filepath);
pkg_debug(2, "Packing file '%s'", filepath);
if (lstat(filepath, &st) != 0) {
pkg_emit_errno("lstat", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
ret = archive_read_disk_entry_from_file(pack->aread, entry, -1,
&st);
if (ret != ARCHIVE_OK) {
pkg_emit_error("%s: %s", filepath,
archive_error_string(pack->aread));
retcode = EPKG_FATAL;
goto cleanup;
}
if (newpath != NULL)
archive_entry_set_pathname(entry, newpath);
if (archive_entry_filetype(entry) != AE_IFREG) {
archive_entry_set_size(entry, 0);
}
if (uname != NULL && uname[0] != '\0') {
if (pack->pass) {
struct passwd* pw = getpwnam(uname);
if (pw == NULL) {
pkg_emit_error("Unknown user: '******'", uname);
retcode = EPKG_FATAL;
goto cleanup;
}
archive_entry_set_uid(entry, pw->pw_uid);
}
archive_entry_set_uname(entry, uname);
}
if (gname != NULL && gname[0] != '\0') {
if (pack->pass) {
struct group *gr = (getgrnam(gname));
if (gr == NULL) {
pkg_emit_error("Unknown group: '%s'", gname);
retcode = EPKG_FATAL;
goto cleanup;
}
archive_entry_set_gid(entry, gr->gr_gid);
}
archive_entry_set_gname(entry, gname);
}
if (perm != 0)
archive_entry_set_perm(entry, perm);
pkg_config_bool(PKG_CONFIG_UNSET_TIMESTAMP, &unset_timestamp);
if (unset_timestamp) {
archive_entry_unset_atime(entry);
archive_entry_unset_ctime(entry);
archive_entry_unset_mtime(entry);
archive_entry_unset_birthtime(entry);
}
archive_entry_linkify(pack->resolver, &entry, &sparse_entry);
if (sparse_entry != NULL && entry == NULL)
entry = sparse_entry;
archive_write_header(pack->awrite, entry);
if (archive_entry_size(entry) > 0) {
if ((fd = open(filepath, O_RDONLY)) < 0) {
pkg_emit_errno("open", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
if (st.st_size > SSIZE_MAX) {
char buf[BUFSIZ];
int len;
while ((len = read(fd, buf, sizeof(buf))) > 0)
if (archive_write_data(pack->awrite, buf, len) == -1) {
pkg_emit_errno("archive_write_data", "archive write error");
retcode = EPKG_FATAL;
break;
}
if (len == -1) {
pkg_emit_errno("read", "file read error");
retcode = EPKG_FATAL;
}
close(fd);
}
else {
if ((map = mmap(NULL, st.st_size, PROT_READ,
MAP_SHARED, fd, 0)) != MAP_FAILED) {
close(fd);
if (archive_write_data(pack->awrite, map, st.st_size) == -1) {
pkg_emit_errno("archive_write_data", "archive write error");
retcode = EPKG_FATAL;
}
munmap(map, st.st_size);
}
else {
close(fd);
pkg_emit_errno("open", filepath);
retcode = EPKG_FATAL;
goto cleanup;
}
}
}
cleanup:
archive_entry_free(entry);
return (retcode);
}
/*
* This is used by both out mode (to copy objects from disk into
* an archive) and pass mode (to copy objects from disk to
* an archive_write_disk "archive").
*/
static int
file_to_archive(struct cpio *cpio, const char *srcpath)
{
struct stat st;
const char *destpath;
struct archive_entry *entry, *spare;
size_t len;
const char *p;
#if !defined(_WIN32) || defined(__CYGWIN__)
int lnklen;
#endif
int r;
/*
* Create an archive_entry describing the source file.
*
* XXX TODO: rework to use archive_read_disk_entry_from_file()
*/
entry = archive_entry_new();
if (entry == NULL)
cpio_errc(1, 0, "Couldn't allocate entry");
archive_entry_copy_sourcepath(entry, srcpath);
/* Get stat information. */
if (cpio->option_follow_links)
r = stat(srcpath, &st);
else
r = lstat(srcpath, &st);
if (r != 0) {
cpio_warnc(errno, "Couldn't stat \"%s\"", srcpath);
archive_entry_free(entry);
return (0);
}
if (cpio->uid_override >= 0)
st.st_uid = cpio->uid_override;
if (cpio->gid_override >= 0)
st.st_gid = cpio->uid_override;
archive_entry_copy_stat(entry, &st);
#if !defined(_WIN32) || defined(__CYGWIN__)
/* If its a symlink, pull the target. */
if (S_ISLNK(st.st_mode)) {
lnklen = readlink(srcpath, cpio->buff, cpio->buff_size);
if (lnklen < 0) {
cpio_warnc(errno,
"%s: Couldn't read symbolic link", srcpath);
archive_entry_free(entry);
return (0);
}
cpio->buff[lnklen] = 0;
archive_entry_set_symlink(entry, cpio->buff);
}
#endif
/*
* Generate a destination path for this entry.
* "destination path" is the name to which it will be copied in
* pass mode or the name that will go into the archive in
* output mode.
*/
destpath = srcpath;
if (cpio->destdir) {
len = strlen(cpio->destdir) + strlen(srcpath) + 8;
if (len >= cpio->pass_destpath_alloc) {
while (len >= cpio->pass_destpath_alloc) {
cpio->pass_destpath_alloc += 512;
cpio->pass_destpath_alloc *= 2;
}
free(cpio->pass_destpath);
cpio->pass_destpath = malloc(cpio->pass_destpath_alloc);
if (cpio->pass_destpath == NULL)
cpio_errc(1, ENOMEM,
"Can't allocate path buffer");
}
strcpy(cpio->pass_destpath, cpio->destdir);
p = srcpath;
while (p[0] == '/')
++p;
strcat(cpio->pass_destpath, p);
destpath = cpio->pass_destpath;
}
if (cpio->option_rename)
destpath = cpio_rename(destpath);
if (destpath == NULL)
return (0);
archive_entry_copy_pathname(entry, destpath);
/*
* If we're trying to preserve hardlinks, match them here.
*/
spare = NULL;
if (cpio->linkresolver != NULL
&& !S_ISDIR(st.st_mode)) {
archive_entry_linkify(cpio->linkresolver, &entry, &spare);
}
if (entry != NULL) {
r = entry_to_archive(cpio, entry);
archive_entry_free(entry);
}
if (spare != NULL) {
if (r == 0)
r = entry_to_archive(cpio, spare);
archive_entry_free(spare);
}
return (r);
}
