Add flag to surpress creation of symlinks when unpacking

Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
This commit is contained in:
David Oberhollenzer 2019-02-04 16:26:47 +01:00
parent deb7bb0d4e
commit 6f32c6b883
4 changed files with 16 additions and 4 deletions

View File

@ -7,6 +7,7 @@
enum {
UNPACK_NO_CHOWN = 0x01,
UNPACK_NO_CHMOD = 0x02,
UNPACK_NO_SYMLINKS = 0x04,
};
int pkg_unpack(int rootfd, int flags, pkg_reader_t *rd);

View File

@ -9,10 +9,11 @@ static const struct option long_opts[] = {
{ "list-packages", no_argument, NULL, 'p' },
{ "list-files", no_argument, NULL, 'l' },
{ "format", required_argument, NULL, 'F' },
{ "no-symlinks", no_argument, NULL, 'L' },
{ NULL, 0, NULL, 0 },
};
static const char *short_opts = "r:omdR:plF:";
static const char *short_opts = "r:omdR:plF:L";
static int unpack_packages(int repofd, int rootfd, int flags,
struct pkg_dep_list *list)
@ -150,6 +151,9 @@ static int cmd_install(int argc, char **argv)
case 'm':
flags |= UNPACK_NO_CHMOD;
break;
case 'L':
flags |= UNPACK_NO_SYMLINKS;
break;
default:
tell_read_help(argv[0]);
goto out;

View File

@ -14,10 +14,11 @@ static const struct option long_opts[] = {
{ "root", required_argument, NULL, 'r' },
{ "no-chown", no_argument, NULL, 'o' },
{ "no-chmod", no_argument, NULL, 'm' },
{ "no-symlinks", no_argument, NULL, 'L' },
{ NULL, 0, NULL, 0 },
};
static const char *short_opts = "r:om";
static const char *short_opts = "r:omL";
static int cmd_unpack(int argc, char **argv)
{
@ -34,6 +35,9 @@ static int cmd_unpack(int argc, char **argv)
case 'r':
root = optarg;
break;
case 'L':
flags |= UNPACK_NO_SYMLINKS;
break;
case 'o':
flags |= UNPACK_NO_CHOWN;
break;

View File

@ -9,7 +9,7 @@
#include "pkgio.h"
#include "util/util.h"
static int create_hierarchy(int dirfd, image_entry_t *list)
static int create_hierarchy(int dirfd, image_entry_t *list, int flags)
{
image_entry_t *ent;
@ -27,6 +27,9 @@ static int create_hierarchy(int dirfd, image_entry_t *list)
for (ent = list; ent != NULL; ent = ent->next) {
if (S_ISLNK(ent->mode)) {
if (flags & UNPACK_NO_SYMLINKS)
continue;
if (symlinkat(ent->data.symlink.target,
dirfd, ent->name)) {
fprintf(stderr, "symlink %s to %s: %s\n",
@ -175,7 +178,7 @@ int pkg_unpack(int rootfd, int flags, pkg_reader_t *rd)
if (pkg_reader_rewind(rd))
goto fail;
if (create_hierarchy(rootfd, list))
if (create_hierarchy(rootfd, list, flags))
goto fail;
for (;;) {