--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "curl-util.h"
+
+static void curl_glue_check_finished(CurlGlue *g) {
+ CURLMsg *msg;
+ int k = 0;
+
+ assert(g);
+
+ msg = curl_multi_info_read(g->curl, &k);
+ if (!msg)
+ return;
+
+ if (msg->msg != CURLMSG_DONE)
+ return;
+
+ if (g->on_finished)
+ g->on_finished(g, msg->easy_handle, msg->data.result);
+}
+
+static int curl_glue_on_io(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+ CurlGlue *g = userdata;
+ int action, k = 0, translated_fd;
+
+ assert(s);
+ assert(g);
+
+ translated_fd = PTR_TO_INT(hashmap_get(g->translate_fds, INT_TO_PTR(fd+1)));
+ assert(translated_fd > 0);
+ translated_fd--;
+
+ if ((revents & (EPOLLIN|EPOLLOUT)) == (EPOLLIN|EPOLLOUT))
+ action = CURL_POLL_INOUT;
+ else if (revents & EPOLLIN)
+ action = CURL_POLL_IN;
+ else if (revents & EPOLLOUT)
+ action = CURL_POLL_OUT;
+ else
+ action = 0;
+
+ if (curl_multi_socket_action(g->curl, translated_fd, action, &k) < 0) {
+ log_debug("Failed to propagate IO event.");
+ return -EINVAL;
+ }
+
+ curl_glue_check_finished(g);
+ return 0;
+}
+
+static int curl_glue_socket_callback(CURLM *curl, curl_socket_t s, int action, void *userdata, void *socketp) {
+ sd_event_source *io;
+ CurlGlue *g = userdata;
+ uint32_t events = 0;
+ int r;
+
+ assert(curl);
+ assert(g);
+
+ io = hashmap_get(g->ios, INT_TO_PTR(s+1));
+
+ if (action == CURL_POLL_REMOVE) {
+ if (io) {
+ int fd;
+
+ fd = sd_event_source_get_io_fd(io);
+ assert(fd >= 0);
+
+ sd_event_source_set_enabled(io, SD_EVENT_OFF);
+ sd_event_source_unref(io);
+
+ hashmap_remove(g->ios, INT_TO_PTR(s+1));
+ hashmap_remove(g->translate_fds, INT_TO_PTR(fd+1));
+
+ safe_close(fd);
+ }
+
+ return 0;
+ }
+
+ r = hashmap_ensure_allocated(&g->ios, &trivial_hash_ops);
+ if (r < 0) {
+ log_oom();
+ return -1;
+ }
+
+ r = hashmap_ensure_allocated(&g->translate_fds, &trivial_hash_ops);
+ if (r < 0) {
+ log_oom();
+ return -1;
+ }
+
+ if (action == CURL_POLL_IN)
+ events = EPOLLIN;
+ else if (action == CURL_POLL_OUT)
+ events = EPOLLOUT;
+ else if (action == CURL_POLL_INOUT)
+ events = EPOLLIN|EPOLLOUT;
+
+ if (io) {
+ if (sd_event_source_set_io_events(io, events) < 0)
+ return -1;
+
+ if (sd_event_source_set_enabled(io, SD_EVENT_ON) < 0)
+ return -1;
+ } else {
+ _cleanup_close_ int fd = -1;
+
+ /* When curl needs to remove an fd from us it closes
+ * the fd first, and only then calls into us. This is
+ * nasty, since we cannot pass the fd on to epoll()
+ * anymore. Hence, duplicate the fds here, and keep a
+ * copy for epoll which we control after use. */
+
+ fd = fcntl(s, F_DUPFD_CLOEXEC, 3);
+ if (fd < 0)
+ return -1;
+
+ if (sd_event_add_io(g->event, &io, fd, events, curl_glue_on_io, g) < 0)
+ return -1;
+
+ sd_event_source_set_description(io, "curl-io");
+
+ r = hashmap_put(g->ios, INT_TO_PTR(s+1), io);
+ if (r < 0) {
+ log_oom();
+ sd_event_source_unref(io);
+ return -1;
+ }
+
+ r = hashmap_put(g->translate_fds, INT_TO_PTR(fd+1), INT_TO_PTR(s+1));
+ if (r < 0) {
+ log_oom();
+ hashmap_remove(g->ios, INT_TO_PTR(s+1));
+ sd_event_source_unref(io);
+ return -1;
+ }
+
+ fd = -1;
+ }
+
+ return 0;
+}
+
+static int curl_glue_on_timer(sd_event_source *s, uint64_t usec, void *userdata) {
+ CurlGlue *g = userdata;
+ int k = 0;
+
+ assert(s);
+ assert(g);
+
+ if (curl_multi_socket_action(g->curl, CURL_SOCKET_TIMEOUT, 0, &k) != CURLM_OK) {
+ log_debug("Failed to propagate timeout.");
+ return -EINVAL;
+ }
+
+ curl_glue_check_finished(g);
+ return 0;
+}
+
+static int curl_glue_timer_callback(CURLM *curl, long timeout_ms, void *userdata) {
+ CurlGlue *g = userdata;
+ usec_t usec;
+
+ assert(curl);
+ assert(g);
+
+ if (timeout_ms < 0) {
+ if (g->timer) {
+ if (sd_event_source_set_enabled(g->timer, SD_EVENT_OFF) < 0)
+ return -1;
+ }
+
+ return 0;
+ }
+
+ usec = now(clock_boottime_or_monotonic()) + (usec_t) timeout_ms * USEC_PER_MSEC + USEC_PER_MSEC - 1;
+
+ if (g->timer) {
+ if (sd_event_source_set_time(g->timer, usec) < 0)
+ return -1;
+
+ if (sd_event_source_set_enabled(g->timer, SD_EVENT_ONESHOT) < 0)
+ return -1;
+ } else {
+ if (sd_event_add_time(g->event, &g->timer, clock_boottime_or_monotonic(), usec, 0, curl_glue_on_timer, g) < 0)
+ return -1;
+
+ sd_event_source_set_description(g->timer, "curl-timer");
+ }
+
+ return 0;
+}
+
+CurlGlue *curl_glue_unref(CurlGlue *g) {
+ sd_event_source *io;
+
+ if (!g)
+ return NULL;
+
+ if (g->curl)
+ curl_multi_cleanup(g->curl);
+
+ while ((io = hashmap_steal_first(g->ios))) {
+ int fd;
+
+ fd = sd_event_source_get_io_fd(io);
+ assert(fd >= 0);
+
+ hashmap_remove(g->translate_fds, INT_TO_PTR(fd+1));
+
+ safe_close(fd);
+ sd_event_source_unref(io);
+ }
+
+ hashmap_free(g->ios);
+
+ sd_event_source_unref(g->timer);
+ sd_event_unref(g->event);
+
+ return NULL;
+}
+
+int curl_glue_new(CurlGlue **glue, sd_event *event) {
+ _cleanup_(curl_glue_unrefp) CurlGlue *g = NULL;
+ int r;
+
+ g = new0(CurlGlue, 1);
+ if (!g)
+ return -ENOMEM;
+
+ if (event)
+ g->event = sd_event_ref(event);
+ else {
+ r = sd_event_default(&g->event);
+ if (r < 0)
+ return r;
+ }
+
+ g->curl = curl_multi_init();
+ if (!g->curl)
+ return -ENOMEM;
+
+ if (curl_multi_setopt(g->curl, CURLMOPT_SOCKETDATA, g) != CURLM_OK)
+ return -EINVAL;
+
+ if (curl_multi_setopt(g->curl, CURLMOPT_SOCKETFUNCTION, curl_glue_socket_callback) != CURLM_OK)
+ return -EINVAL;
+
+ if (curl_multi_setopt(g->curl, CURLMOPT_TIMERDATA, g) != CURLM_OK)
+ return -EINVAL;
+
+ if (curl_multi_setopt(g->curl, CURLMOPT_TIMERFUNCTION, curl_glue_timer_callback) != CURLM_OK)
+ return -EINVAL;
+
+ *glue = g;
+ g = NULL;
+
+ return 0;
+}
+
+int curl_glue_make(CURL **ret, const char *url, void *userdata) {
+ const char *useragent;
+ CURL *c;
+ int r;
+
+ assert(ret);
+ assert(url);
+
+ c = curl_easy_init();
+ if (!c)
+ return -ENOMEM;
+
+ /* curl_easy_setopt(c, CURLOPT_VERBOSE, 1L); */
+
+ if (curl_easy_setopt(c, CURLOPT_URL, url) != CURLE_OK) {
+ r = -EIO;
+ goto fail;
+ }
+
+ if (curl_easy_setopt(c, CURLOPT_PRIVATE, userdata) != CURLE_OK) {
+ r = -EIO;
+ goto fail;
+ }
+
+ useragent = strappenda(program_invocation_short_name, "/" PACKAGE_VERSION);
+ if (curl_easy_setopt(c, CURLOPT_USERAGENT, useragent) != CURLE_OK) {
+ r = -EIO;
+ goto fail;
+ }
+
+ if (curl_easy_setopt(c, CURLOPT_FOLLOWLOCATION, 1L) != CURLE_OK) {
+ r = -EIO;
+ goto fail;
+ }
+
+ *ret = c;
+ return 0;
+
+fail:
+ curl_easy_cleanup(c);
+ return r;
+}
+
+int curl_glue_add(CurlGlue *g, CURL *c) {
+ assert(g);
+ assert(c);
+
+ if (curl_multi_add_handle(g->curl, c) != CURLM_OK)
+ return -EIO;
+
+ return 0;
+}
+
+void curl_glue_remove_and_free(CurlGlue *g, CURL *c) {
+ assert(g);
+
+ if (!c)
+ return;
+
+ if (g->curl)
+ curl_multi_remove_handle(g->curl, c);
+
+ curl_easy_cleanup(c);
+}
+
+struct curl_slist *curl_slist_new(const char *first, ...) {
+ struct curl_slist *l;
+ va_list ap;
+
+ if (!first)
+ return NULL;
+
+ l = curl_slist_append(NULL, first);
+ if (!l)
+ return NULL;
+
+ va_start(ap, first);
+
+ for (;;) {
+ struct curl_slist *n;
+ const char *i;
+
+ i = va_arg(ap, const char*);
+ if (!i)
+ break;
+
+ n = curl_slist_append(l, i);
+ if (!n) {
+ va_end(ap);
+ curl_slist_free_all(l);
+ return NULL;
+ }
+
+ l = n;
+ }
+
+ va_end(ap);
+ return l;
+}
+
+int curl_header_strdup(const void *contents, size_t sz, const char *field, char **value) {
+ const char *p = contents;
+ size_t l;
+ char *s;
+
+ l = strlen(field);
+ if (sz < l)
+ return 0;
+
+ if (memcmp(p, field, l) != 0)
+ return 0;
+
+ p += l;
+ sz -= l;
+
+ if (memchr(p, 0, sz))
+ return 0;
+
+ /* Skip over preceeding whitespace */
+ while (sz > 0 && strchr(WHITESPACE, p[0])) {
+ p++;
+ sz--;
+ }
+
+ /* Truncate trailing whitespace*/
+ while (sz > 0 && strchr(WHITESPACE, p[sz-1]))
+ sz--;
+
+ s = strndup(p, sz);
+ if (!s)
+ return -ENOMEM;
+
+ *value = s;
+ return 1;
+}
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <curl/curl.h>
+#include <sys/prctl.h>
+
+#include "hashmap.h"
+#include "set.h"
+#include "json.h"
+#include "strv.h"
+#include "curl-util.h"
+#include "import-dck.h"
+#include "btrfs-util.h"
+#include "aufs-util.h"
+
+/* TODO:
+ - convert json bits
+ - man page
+ - fall back to btrfs loop pool device
+*/
+
+typedef struct DckImportJob DckImportJob;
+typedef struct DckImportName DckImportName;
+
+typedef enum DckImportJobType {
+ DCK_IMPORT_JOB_IMAGES,
+ DCK_IMPORT_JOB_TAGS,
+ DCK_IMPORT_JOB_ANCESTRY,
+ DCK_IMPORT_JOB_JSON,
+ DCK_IMPORT_JOB_LAYER,
+} DckImportJobType;
+
+struct DckImportJob {
+ DckImport *import;
+ DckImportJobType type;
+ bool done;
+
+ char *url;
+
+ Set *needed_by; /* DckImport Name objects */
+
+ CURL *curl;
+ struct curl_slist *request_header;
+ void *payload;
+ size_t payload_size;
+
+ char *response_token;
+ char **response_registries;
+
+ char *temp_path;
+ char *final_path;
+
+ pid_t tar_pid;
+ FILE *tar_stream;
+};
+
+struct DckImportName {
+ DckImport *import;
+
+ char *name;
+ char *tag;
+ char *id;
+ char *local;
+
+ DckImportJob *job_images, *job_tags, *job_ancestry, *job_json, *job_layer;
+
+ char **ancestry;
+ unsigned current_ancestry;
+
+ bool force_local;
+};
+
+struct DckImport {
+ sd_event *event;
+ CurlGlue *glue;
+
+ Hashmap *names;
+ Hashmap *jobs;
+
+ dck_import_on_finished on_finished;
+ void *userdata;
+};
+
+#define PROTOCOL_PREFIX "https://"
+#define INDEX_HOST "index.do" /* the URL we get the data from */ "cker.io"
+
+#define HEADER_TOKEN "X-Do" /* the HTTP header for the auth token */ "cker-Token:"
+#define HEADER_REGISTRY "X-Do" /*the HTTP header for the registry */ "cker-Endpoints:"
+
+#define PAYLOAD_MAX (16*1024*1024)
+#define LAYERS_MAX 2048
+
+static int dck_import_name_add_job(DckImportName *name, DckImportJobType type, const char *url, DckImportJob **ret);
+
+static DckImportJob *dck_import_job_unref(DckImportJob *job) {
+ if (!job)
+ return NULL;
+
+ if (job->import)
+ curl_glue_remove_and_free(job->import->glue, job->curl);
+ curl_slist_free_all(job->request_header);
+
+ if (job->tar_stream)
+ fclose(job->tar_stream);
+
+ free(job->final_path);
+
+ if (job->temp_path) {
+ btrfs_subvol_remove(job->temp_path);
+ free(job->temp_path);
+ }
+
+ set_free(job->needed_by);
+
+ if (job->tar_pid > 0)
+ kill(job->tar_pid, SIGTERM);
+
+ free(job->url);
+ free(job->payload);
+ free(job->response_token);
+ strv_free(job->response_registries);
+
+ free(job);
+
+ return NULL;
+}
+
+static DckImportName *dck_import_name_unref(DckImportName *name) {
+ if (!name)
+ return NULL;
+
+ if (name->job_images)
+ set_remove(name->job_images->needed_by, name);
+
+ if (name->job_tags)
+ set_remove(name->job_tags->needed_by, name);
+
+ if (name->job_ancestry)
+ set_remove(name->job_ancestry->needed_by, name);
+
+ if (name->job_json)
+ set_remove(name->job_json->needed_by, name);
+
+ if (name->job_layer)
+ set_remove(name->job_layer->needed_by, name);
+
+ free(name->name);
+ free(name->id);
+ free(name->tag);
+ free(name->local);
+
+ strv_free(name->ancestry);
+ free(name);
+
+ return NULL;
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(DckImportJob*, dck_import_job_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(DckImportName*, dck_import_name_unref);
+
+static void dck_import_finish(DckImport *import, int error) {
+ assert(import);
+
+ if (import->on_finished)
+ import->on_finished(import, error, import->userdata);
+ else
+ sd_event_exit(import->event, error);
+}
+
+static int parse_id(const void *payload, size_t size, char **ret) {
+ _cleanup_free_ char *buf = NULL, *id = NULL, *other = NULL;
+ union json_value v = {};
+ void *json_state = NULL;
+ const char *p;
+ int t;
+
+ assert(payload);
+ assert(ret);
+
+ if (size <= 0)
+ return -EBADMSG;
+
+ if (memchr(payload, 0, size))
+ return -EBADMSG;
+
+ buf = strndup(payload, size);
+ if (!buf)
+ return -ENOMEM;
+
+ p = buf;
+ t = json_tokenize(&p, &id, &v, &json_state, NULL);
+ if (t < 0)
+ return t;
+ if (t != JSON_STRING)
+ return -EBADMSG;
+
+ t = json_tokenize(&p, &other, &v, &json_state, NULL);
+ if (t < 0)
+ return t;
+ if (t != JSON_END)
+ return -EBADMSG;
+
+ if (!dck_id_is_valid(id))
+ return -EBADMSG;
+
+ *ret = id;
+ id = NULL;
+
+ return 0;
+}
+
+static int parse_ancestry(const void *payload, size_t size, char ***ret) {
+ _cleanup_free_ char *buf = NULL;
+ void *json_state = NULL;
+ const char *p;
+ enum {
+ STATE_BEGIN,
+ STATE_ITEM,
+ STATE_COMMA,
+ STATE_END,
+ } state = STATE_BEGIN;
+ _cleanup_strv_free_ char **l = NULL;
+ size_t n = 0, allocated = 0;
+
+ if (size <= 0)
+ return -EBADMSG;
+
+ if (memchr(payload, 0, size))
+ return -EBADMSG;
+
+ buf = strndup(payload, size);
+ if (!buf)
+ return -ENOMEM;
+
+ p = buf;
+ for (;;) {
+ _cleanup_free_ char *str;
+ union json_value v = {};
+ int t;
+
+ t = json_tokenize(&p, &str, &v, &json_state, NULL);
+ if (t < 0)
+ return t;
+
+ switch (state) {
+
+ case STATE_BEGIN:
+ if (t == JSON_ARRAY_OPEN)
+ state = STATE_ITEM;
+ else
+ return -EBADMSG;
+
+ break;
+
+ case STATE_ITEM:
+ if (t == JSON_STRING) {
+ if (!dck_id_is_valid(str))
+ return -EBADMSG;
+
+ if (n+1 > LAYERS_MAX)
+ return -EFBIG;
+
+ if (!GREEDY_REALLOC(l, allocated, n + 2))
+ return -ENOMEM;
+
+ l[n++] = str;
+ str = NULL;
+ l[n] = NULL;
+
+ state = STATE_COMMA;
+
+ } else if (t == JSON_ARRAY_CLOSE)
+ state = STATE_END;
+ else
+ return -EBADMSG;
+
+ break;
+
+ case STATE_COMMA:
+ if (t == JSON_COMMA)
+ state = STATE_ITEM;
+ else if (t == JSON_ARRAY_CLOSE)
+ state = STATE_END;
+ else
+ return -EBADMSG;
+ break;
+
+ case STATE_END:
+ if (t == JSON_END) {
+
+ if (strv_isempty(l))
+ return -EBADMSG;
+
+ if (!strv_is_uniq(l))
+ return -EBADMSG;
+
+ l = strv_reverse(l);
+
+ *ret = l;
+ l = NULL;
+ return 0;
+ } else
+ return -EBADMSG;
+ }
+
+ }
+}
+
+static const char *dck_import_name_current_layer(DckImportName *name) {
+ assert(name);
+
+ if (strv_isempty(name->ancestry))
+ return NULL;
+
+ return name->ancestry[name->current_ancestry];
+}
+
+static const char *dck_import_name_current_base_layer(DckImportName *name) {
+ assert(name);
+
+ if (strv_isempty(name->ancestry))
+ return NULL;
+
+ if (name->current_ancestry <= 0)
+ return NULL;
+
+ return name->ancestry[name->current_ancestry-1];
+}
+
+static char** dck_import_name_get_registries(DckImportName *name) {
+ assert(name);
+
+ if (!name->job_images)
+ return NULL;
+
+ if (!name->job_images->done)
+ return NULL;
+
+ if (strv_isempty(name->job_images->response_registries))
+ return NULL;
+
+ return name->job_images->response_registries;
+}
+
+static const char*dck_import_name_get_token(DckImportName *name) {
+ assert(name);
+
+ if (!name->job_images)
+ return NULL;
+
+ if (!name->job_images->done)
+ return NULL;
+
+ return name->job_images->response_token;
+}
+
+static void dck_import_name_maybe_finish(DckImportName *name) {
+ int r;
+
+ assert(name);
+
+ if (!name->job_images || !name->job_images->done)
+ return;
+
+ if (!name->job_ancestry || !name->job_ancestry->done)
+ return;
+
+ if (!name->job_json || !name->job_json->done)
+ return;
+
+ if (name->job_layer && !name->job_json->done)
+ return;
+
+ if (dck_import_name_current_layer(name))
+ return;
+
+ if (name->local) {
+ const char *p, *q;
+
+ assert(name->id);
+
+ p = strappenda("/var/lib/container/", name->local);
+ q = strappenda("/var/lib/container/.dck-", name->id);
+
+ if (name->force_local) {
+ (void) btrfs_subvol_remove(p);
+ (void) rm_rf(p, false, true, false);
+ }
+
+ r = btrfs_subvol_snapshot(q, p, false, false);
+ if (r < 0) {
+ log_error_errno(r, "Failed to snapshot final image: %m");
+ dck_import_finish(name->import, r);
+ return;
+ }
+
+ log_info("Created new image %s.", p);
+ }
+
+ dck_import_finish(name->import, 0);
+}
+
+static int dck_import_job_run_tar(DckImportJob *job) {
+ _cleanup_close_pair_ int pipefd[2] = { -1, -1 };
+ bool gzip;
+
+ assert(job);
+
+ /* A stream to run tar on? */
+ if (!job->temp_path)
+ return 0;
+
+ if (job->tar_stream)
+ return 0;
+
+ /* Maybe fork off tar, if we have enough to figure out that
+ * something is gzip compressed or not */
+
+ if (job->payload_size < 2)
+ return 0;
+
+ /* Detect gzip signature */
+ gzip = ((uint8_t*) job->payload)[0] == 0x1f &&
+ ((uint8_t*) job->payload)[1] == 0x8b;
+
+ assert(!job->tar_stream);
+ assert(job->tar_pid <= 0);
+
+ if (pipe2(pipefd, O_CLOEXEC) < 0)
+ return log_error_errno(errno, "Failed to create pipe for tar: %m");
+
+ job->tar_pid = fork();
+ if (job->tar_pid < 0)
+ return log_error_errno(errno, "Failed to fork off tar: %m");
+ if (job->tar_pid == 0) {
+ int null_fd;
+
+ reset_all_signal_handlers();
+ reset_signal_mask();
+ assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
+
+ pipefd[1] = safe_close(pipefd[1]);
+
+ if (dup2(pipefd[0], STDIN_FILENO) != STDIN_FILENO) {
+ log_error_errno(errno, "Failed to dup2() fd: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ if (pipefd[0] != STDIN_FILENO)
+ safe_close(pipefd[0]);
+ if (pipefd[1] != STDIN_FILENO)
+ safe_close(pipefd[1]);
+
+ null_fd = open("/dev/null", O_WRONLY|O_NOCTTY);
+ if (null_fd < 0) {
+ log_error_errno(errno, "Failed to open /dev/null: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ if (dup2(null_fd, STDOUT_FILENO) != STDOUT_FILENO) {
+ log_error_errno(errno, "Failed to dup2() fd: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ if (null_fd != STDOUT_FILENO)
+ safe_close(null_fd);
+
+ execlp("tar", "tar", "-C", job->temp_path, gzip ? "-xz" : "-x", NULL);
+ _exit(EXIT_FAILURE);
+ }
+
+ pipefd[0] = safe_close(pipefd[0]);
+
+ job->tar_stream = fdopen(pipefd[1], "w");
+ if (!job->tar_stream)
+ return log_error_errno(errno, "Failed to allocate tar stream: %m");
+
+ pipefd[1] = -1;
+
+ if (fwrite(job->payload, 1, job->payload_size, job->tar_stream) != job->payload_size)
+ return log_error_errno(errno, "Couldn't write payload: %m");
+
+ free(job->payload);
+ job->payload = NULL;
+ job->payload_size = 0;
+
+ return 0;
+}
+
+static int dck_import_name_pull_layer(DckImportName *name) {
+ _cleanup_free_ char *path = NULL, *temp = NULL;
+ const char *url, *layer = NULL, *base = NULL;
+ char **rg;
+ int r;
+
+ assert(name);
+
+ if (name->job_layer) {
+ set_remove(name->job_layer->needed_by, name);
+ name->job_layer = NULL;
+ }
+
+ for (;;) {
+ layer = dck_import_name_current_layer(name);
+ if (!layer) {
+ dck_import_name_maybe_finish(name);
+ return 0;
+ }
+
+ path = strjoin("/var/lib/container/.dck-", layer, NULL);
+ if (!path)
+ return log_oom();
+
+ if (laccess(path, F_OK) < 0) {
+ if (errno == ENOENT)
+ break;
+
+ return log_error_errno(errno, "Failed to check for container: %m");
+ }
+
+ log_info("Layer %s already exists, skipping.", layer);
+
+ name->current_ancestry++;
+
+ free(path);
+ path = NULL;
+ }
+
+ rg = dck_import_name_get_registries(name);
+ assert(rg && rg[0]);
+
+ url = strappenda(PROTOCOL_PREFIX, rg[0], "/v1/images/", layer, "/layer");
+ r = dck_import_name_add_job(name, DCK_IMPORT_JOB_LAYER, url, &name->job_layer);
+ if (r < 0) {
+ log_error_errno(r, "Failed to issue HTTP request: %m");
+ return r;
+ }
+ if (r == 0) /* Already downloading this one? */
+ return 0;
+
+ log_info("Pulling layer %s...", layer);
+
+ r = tempfn_random(path, &temp);
+ if (r < 0)
+ return log_oom();
+
+ base = dck_import_name_current_base_layer(name);
+ if (base) {
+ const char *base_path;
+
+ base_path = strappend("/var/lib/container/.dck-", base);
+ r = btrfs_subvol_snapshot(base_path, temp, false, true);
+ } else
+ r = btrfs_subvol_make(temp);
+
+ if (r < 0)
+ return log_error_errno(r, "Failed to make btrfs subvolume %s", temp);
+
+ name->job_layer->final_path = path;
+ name->job_layer->temp_path = temp;
+ path = temp = NULL;
+
+ return 0;
+}
+
+static void dck_import_name_job_finished(DckImportName *name, DckImportJob *job) {
+ int r;
+
+ assert(name);
+ assert(job);
+
+ if (name->job_images == job) {
+ const char *url;
+ char **rg;
+
+ assert(!name->job_tags);
+ assert(!name->job_ancestry);
+ assert(!name->job_json);
+ assert(!name->job_layer);
+
+ rg = dck_import_name_get_registries(name);
+ if (strv_isempty(rg)) {
+ log_error("Didn't get registry information.");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ log_info("Index lookup succeeded, directed to registry %s.", rg[0]);
+
+ url = strappenda(PROTOCOL_PREFIX, rg[0], "/v1/repositories/", name->name, "/tags/", name->tag);
+
+ r = dck_import_name_add_job(name, DCK_IMPORT_JOB_TAGS, url, &name->job_tags);
+ if (r < 0) {
+ log_error_errno(r, "Failed to issue HTTP request: %m");
+ goto fail;
+ }
+
+ } else if (name->job_tags == job) {
+ const char *url;
+ char *id = NULL, **rg;
+
+ assert(!name->job_ancestry);
+ assert(!name->job_json);
+ assert(!name->job_layer);
+
+ r = parse_id(job->payload, job->payload_size, &id);
+ if (r < 0) {
+ log_error_errno(r, "Failed to parse JSON id.");
+ goto fail;
+ }
+
+ free(name->id);
+ name->id = id;
+
+ rg = dck_import_name_get_registries(name);
+ assert(rg && rg[0]);
+
+ log_info("Tag lookup succeeded, resolved to layer %s.", name->id);
+
+ url = strappenda(PROTOCOL_PREFIX, rg[0], "/v1/images/", name->id, "/ancestry");
+ r = dck_import_name_add_job(name, DCK_IMPORT_JOB_ANCESTRY, url, &name->job_ancestry);
+ if (r < 0) {
+ log_error_errno(r, "Failed to issue HTTP request: %m");
+ goto fail;
+ }
+
+ url = strappenda(PROTOCOL_PREFIX, rg[0], "/v1/images/", name->id, "/json");
+ r = dck_import_name_add_job(name, DCK_IMPORT_JOB_JSON, url, &name->job_json);
+ if (r < 0) {
+ log_error_errno(r, "Failed to issue HTTP request: %m");
+ goto fail;
+ }
+
+ } else if (name->job_ancestry == job) {
+ char **ancestry = NULL, **i;
+ unsigned n;
+
+ r = parse_ancestry(job->payload, job->payload_size, &ancestry);
+ if (r < 0) {
+ log_error_errno(r, "Failed to parse JSON id.");
+ goto fail;
+ }
+
+ n = strv_length(ancestry);
+ if (n <= 0 || !streq(ancestry[n-1], name->id)) {
+ log_error("Ancestry doesn't end in main layer.");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ log_info("Ancestor lookup succeeded, requires layers:\n");
+ STRV_FOREACH(i, ancestry)
+ log_info("\t%s", *i);
+
+ strv_free(name->ancestry);
+ name->ancestry = ancestry;
+
+ name->current_ancestry = 0;
+ r = dck_import_name_pull_layer(name);
+ if (r < 0)
+ goto fail;
+
+ } else if (name->job_json == job) {
+
+ dck_import_name_maybe_finish(name);
+
+ } else if (name->job_layer == job) {
+
+ name->current_ancestry ++;
+ r = dck_import_name_pull_layer(name);
+ if (r < 0)
+ goto fail;
+
+ } else
+ assert_not_reached("Got finished event for unknown curl object");
+
+ return;
+
+fail:
+ dck_import_finish(name->import, r);
+}
+
+static void dck_import_curl_on_finished(CurlGlue *g, CURL *curl, CURLcode result) {
+ DckImportJob *job = NULL;
+ CURLcode code;
+ DckImportName *n;
+ long status;
+ Iterator i;
+ int r;
+
+ if (curl_easy_getinfo(curl, CURLINFO_PRIVATE, &job) != CURLE_OK)
+ return;
+
+ if (!job)
+ return;
+
+ job->done = true;
+
+ if (result != CURLE_OK) {
+ log_error("Transfer failed: %s", curl_easy_strerror(code));
+ r = -EIO;
+ goto fail;
+ }
+
+ code = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &status);
+ if (code != CURLE_OK) {
+ log_error("Failed to retrieve response code: %s", curl_easy_strerror(code));
+ r = -EIO;
+ goto fail;
+ } else if (status >= 300) {
+ log_error("HTTP request to %s failed with code %li.", job->url, status);
+ r = -EIO;
+ goto fail;
+ } else if (status < 200) {
+ log_error("HTTP request to %s finished with unexpected code %li.", job->url, status);
+ r = -EIO;
+ goto fail;
+ }
+
+ switch (job->type) {
+
+ case DCK_IMPORT_JOB_LAYER: {
+ siginfo_t si;
+
+ if (!job->tar_stream) {
+ log_error("Downloaded layer too short.");
+ r = -EIO;
+ goto fail;
+ }
+
+ fclose(job->tar_stream);
+ job->tar_stream = NULL;
+
+ assert(job->tar_pid > 0);
+
+ r = wait_for_terminate(job->tar_pid, &si);
+ if (r < 0) {
+ log_error_errno(r, "Failed to wait for tar process: %m");
+ goto fail;
+ }
+
+ job->tar_pid = 0;
+
+ if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) {
+ log_error_errno(r, "tar failed abnormally.");
+ r = -EIO;
+ goto fail;
+ }
+
+ r = aufs_resolve(job->temp_path);
+ if (r < 0) {
+ log_error_errno(r, "Couldn't resolve aufs whiteouts: %m");
+ goto fail;
+ }
+
+ r = btrfs_subvol_read_only(job->temp_path, true);
+ if (r < 0) {
+ log_error_errno(r, "Failed to mark snapshot read-only: %m");
+ goto fail;
+ }
+
+ if (rename(job->temp_path, job->final_path) < 0) {
+ log_error_errno(r, "Failed to rename snapshot: %m");
+ goto fail;
+ }
+
+ log_info("Completed writing to layer %s", job->final_path);
+ break;
+ }
+
+ default:
+ ;
+ }
+
+ SET_FOREACH(n, job->needed_by, i)
+ dck_import_name_job_finished(n, job);
+
+ return;
+
+fail:
+ dck_import_finish(job->import, r);
+}
+
+static size_t dck_import_job_write_callback(void *contents, size_t size, size_t nmemb, void *userdata) {
+ DckImportJob *j = userdata;
+ size_t sz = size * nmemb;
+ char *p;
+ int r;
+
+ assert(contents);
+ assert(j);
+
+ if (j->tar_stream) {
+ size_t l;
+
+ l = fwrite(contents, size, nmemb, j->tar_stream);
+ if (l != nmemb) {
+ r = -errno;
+ goto fail;
+ }
+
+ return l;
+ }
+
+ if (j->payload_size + sz > PAYLOAD_MAX) {
+ r = -EFBIG;
+ goto fail;
+ }
+
+ p = realloc(j->payload, j->payload_size + sz);
+ if (!p) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ memcpy(p + j->payload_size, contents, sz);
+ j->payload_size += sz;
+ j->payload = p;
+
+ r = dck_import_job_run_tar(j);
+ if (r < 0)
+ goto fail;
+
+ return sz;
+
+fail:
+ dck_import_finish(j->import, r);
+ return 0;
+}
+
+static size_t dck_import_job_header_callback(void *contents, size_t size, size_t nmemb, void *userdata) {
+ _cleanup_free_ char *registry = NULL;
+ size_t sz = size * nmemb;
+ DckImportJob *j = userdata;
+ char *token;
+ int r;
+
+ assert(contents);
+ assert(j);
+
+ r = curl_header_strdup(contents, sz, HEADER_TOKEN, &token);
+ if (r < 0) {
+ log_oom();
+ goto fail;
+ }
+ if (r > 0) {
+ free(j->response_token);
+ j->response_token = token;
+ }
+
+ r = curl_header_strdup(contents, sz, HEADER_REGISTRY, ®istry);
+ if (r < 0) {
+ log_oom();
+ goto fail;
+ }
+ if (r > 0) {
+ char **l, **i;
+
+ l = strv_split(registry, ",");
+ if (!l) {
+ r = log_oom();
+ goto fail;
+ }
+
+ STRV_FOREACH(i, l) {
+ if (!hostname_is_valid(*i)) {
+ log_error("Registry hostname is not valid.");
+ strv_free(l);
+ r = -EBADMSG;
+ goto fail;
+ }
+ }
+
+ strv_free(j->response_registries);
+ j->response_registries = l;
+ }
+
+ return sz;
+
+fail:
+ dck_import_finish(j->import, r);
+ return 0;
+}
+
+static int dck_import_name_add_job(DckImportName *name, DckImportJobType type, const char *url, DckImportJob **ret) {
+ _cleanup_(dck_import_job_unrefp) DckImportJob *j = NULL;
+ DckImportJob *f = NULL;
+ const char *t, *token;
+ int r;
+
+ assert(name);
+ assert(url);
+ assert(ret);
+
+ log_info("Getting %s.", url);
+ f = hashmap_get(name->import->jobs, url);
+ if (f) {
+ if (f->type != type)
+ return -EINVAL;
+
+ r = set_put(f->needed_by, name);
+ if (r < 0)
+ return r;
+
+ return 0;
+ }
+
+ r = hashmap_ensure_allocated(&name->import->jobs, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ j = new0(DckImportJob, 1);
+ if (!j)
+ return -ENOMEM;
+
+ j->import = name->import;
+ j->type = type;
+ j->url = strdup(url);
+ if (!j->url)
+ return -ENOMEM;
+
+ r = set_ensure_allocated(&j->needed_by, &trivial_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = curl_glue_make(&j->curl, j->url, j);
+ if (r < 0)
+ return r;
+
+ token = dck_import_name_get_token(name);
+ if (token)
+ t = strappenda("Authorization: Token ", token);
+ else
+ t = HEADER_TOKEN " true";
+
+ j->request_header = curl_slist_new("Accept: application/json", t, NULL);
+ if (!j->request_header)
+ return -ENOMEM;
+
+ if (curl_easy_setopt(j->curl, CURLOPT_HTTPHEADER, j->request_header) != CURLE_OK)
+ return -EIO;
+
+ if (curl_easy_setopt(j->curl, CURLOPT_WRITEFUNCTION, dck_import_job_write_callback) != CURLE_OK)
+ return -EIO;
+
+ if (curl_easy_setopt(j->curl, CURLOPT_WRITEDATA, j) != CURLE_OK)
+ return -EIO;
+
+ if (curl_easy_setopt(j->curl, CURLOPT_HEADERFUNCTION, dck_import_job_header_callback) != CURLE_OK)
+ return -EIO;
+
+ if (curl_easy_setopt(j->curl, CURLOPT_HEADERDATA, j) != CURLE_OK)
+ return -EIO;
+
+ r = curl_glue_add(name->import->glue, j->curl);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(name->import->jobs, j->url, j);
+ if (r < 0)
+ return r;
+
+ r = set_put(j->needed_by, name);
+ if (r < 0) {
+ hashmap_remove(name->import->jobs, url);
+ return r;
+ }
+
+ *ret = j;
+ j = NULL;
+
+ return 1;
+}
+
+static int dck_import_name_begin(DckImportName *name) {
+ const char *url;
+
+ assert(name);
+ assert(!name->job_images);
+
+ url = strappenda(PROTOCOL_PREFIX, INDEX_HOST, "/v1/repositories/", name->name, "/images");
+
+ return dck_import_name_add_job(name, DCK_IMPORT_JOB_IMAGES, url, &name->job_images);
+}
+
+int dck_import_new(DckImport **import, sd_event *event, dck_import_on_finished on_finished, void *userdata) {
+ _cleanup_(dck_import_unrefp) DckImport *i = NULL;
+ int r;
+
+ assert(import);
+
+ i = new0(DckImport, 1);
+ if (!i)
+ return -ENOMEM;
+
+ i->on_finished = on_finished;
+ i->userdata = userdata;
+
+ if (event)
+ i->event = sd_event_ref(event);
+ else {
+ r = sd_event_default(&i->event);
+ if (r < 0)
+ return r;
+ }
+
+ r = curl_glue_new(&i->glue, i->event);
+ if (r < 0)
+ return r;
+
+ i->glue->on_finished = dck_import_curl_on_finished;
+ i->glue->userdata = i;
+
+ *import = i;
+ i = NULL;
+
+ return 0;
+}
+
+DckImport* dck_import_unref(DckImport *import) {
+ DckImportName *n;
+ DckImportJob *j;
+
+ if (!import)
+ return NULL;
+
+ while ((n = hashmap_steal_first(import->names)))
+ dck_import_name_unref(n);
+ hashmap_free(import->names);
+
+ while ((j = hashmap_steal_first(import->jobs)))
+ dck_import_job_unref(j);
+ hashmap_free(import->jobs);
+
+ curl_glue_unref(import->glue);
+ sd_event_unref(import->event);
+
+ free(import);
+ return NULL;
+}
+
+int dck_import_cancel(DckImport *import, const char *name) {
+ DckImportName *n;
+
+ assert(import);
+ assert(name);
+
+ n = hashmap_remove(import->names, name);
+ if (!n)
+ return 0;
+
+ dck_import_name_unref(n);
+ return 1;
+}
+
+int dck_import_pull(DckImport *import, const char *name, const char *tag, const char *local, bool force_local) {
+ _cleanup_(dck_import_name_unrefp) DckImportName *n = NULL;
+ int r;
+
+ assert(import);
+ assert(dck_name_is_valid(name));
+ assert(dck_tag_is_valid(tag));
+ assert(!local || machine_name_is_valid(local));
+
+ if (hashmap_get(import->names, name))
+ return -EEXIST;
+
+ r = hashmap_ensure_allocated(&import->names, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ n = new0(DckImportName, 1);
+ if (!n)
+ return -ENOMEM;
+
+ n->import = import;
+
+ n->name = strdup(name);
+ if (!n->name)
+ return -ENOMEM;
+
+ n->tag = strdup(tag);
+ if (!n->tag)
+ return -ENOMEM;
+
+ if (local) {
+ n->local = strdup(local);
+ if (!n->local)
+ return -ENOMEM;
+ n->force_local = force_local;
+ }
+
+ r = hashmap_put(import->names, name, n);
+ if (r < 0)
+ return r;
+
+ r = dck_import_name_begin(n);
+ if (r < 0) {
+ dck_import_cancel(import, n->name);
+ n = NULL;
+ return r;
+ }
+
+ n = NULL;
+
+ return 0;
+}
+
+bool dck_name_is_valid(const char *name) {
+ const char *slash, *p;
+
+ if (isempty(name))
+ return false;
+
+ slash = strchr(name, '/');
+ if (!slash)
+ return false;
+
+ if (!filename_is_valid(slash + 1))
+ return false;
+
+ p = strndupa(name, slash - name);
+ if (!filename_is_valid(p))
+ return false;
+
+ return true;
+}
+
+bool dck_id_is_valid(const char *id) {
+
+ if (!filename_is_valid(id))
+ return false;
+
+ if (!in_charset(id, "0123456789abcdef"))
+ return false;
+
+ return true;
+}
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <getopt.h>
+
+#include "sd-event.h"
+#include "event-util.h"
+#include "verbs.h"
+#include "build.h"
+#include "import-dck.h"
+
+static bool arg_force = false;
+
+static void on_finished(DckImport *import, int error, void *userdata) {
+ sd_event *event = userdata;
+ assert(import);
+
+ if (error == 0)
+ log_info("Operation completed successfully.");
+ else
+ log_info_errno(error, "Operation failed: %m");
+
+ sd_event_exit(event, error);
+}
+
+static int pull_dck(int argc, char *argv[], void *userdata) {
+ _cleanup_(dck_import_unrefp) DckImport *import = NULL;
+ _cleanup_event_unref_ sd_event *event = NULL;
+ const char *name, *tag, *local;
+ int r;
+
+ tag = strchr(argv[1], ':');
+ if (tag) {
+ name = strndupa(argv[1], tag - argv[1]);
+ tag++;
+ } else {
+ name = argv[1];
+ tag = "latest";
+ }
+
+ if (argc >= 3)
+ local = argv[2];
+ else {
+ local = strchr(name, '/');
+ if (local)
+ local++;
+ else
+ local = name;
+ }
+
+ if (streq(local, "-") || isempty(local))
+ local = NULL;
+
+ if (!dck_name_is_valid(name)) {
+ log_error("Remote name '%s' is not valid.", name);
+ return -EINVAL;
+ }
+
+ if (!dck_tag_is_valid(tag)) {
+ log_error("Tag name '%s' is not valid.", tag);
+ return -EINVAL;
+ }
+
+ if (local) {
+ const char *p;
+
+ if (!machine_name_is_valid(tag)) {
+ log_error("Local image name '%s' is not valid.", local);
+ return -EINVAL;
+ }
+
+ p = strappenda("/var/lib/container/", local);
+ if (laccess(p, F_OK) >= 0) {
+ if (!arg_force) {
+ log_info("Image '%s' already exists.", local);
+ return 0;
+ }
+ } else if (errno != ENOENT)
+ return log_error_errno(errno, "Can't check if image '%s' already exists: %m", local);
+
+ log_info("Pulling '%s' with tag '%s', saving as '%s'.", name, tag, local);
+ } else
+ log_info("Pulling '%s' with tag '%s'.", name, tag);
+
+ r = sd_event_default(&event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate event loop: %m");
+
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
+ sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
+ sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
+
+ r = dck_import_new(&import, event, on_finished, event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate importer: %m");
+
+ r = dck_import_pull(import, name, tag, local, arg_force);
+ if (r < 0)
+ return log_error_errno(r, "Failed to pull image: %m");
+
+ r = sd_event_loop(event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to run event loop: %m");
+
+ log_info("Exiting.");
+
+ return 0;
+}
+
+static int help(int argc, char *argv[], void *userdata) {
+
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Import container or virtual machine image.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --force Force creation of image\n\n"
+ "Commands:\n"
+ " pull-dck REMOTE [NAME] Download an image\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_FORCE,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "force", no_argument, NULL, ARG_FORCE },
+ {}
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
+
+ switch (c) {
+
+ case 'h':
+ return help(argc, argv, NULL);
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case ARG_FORCE:
+ arg_force = true;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unhandled option");
+ }
+
+ return 1;
+}
+
+static int import_main(int argc, char *argv[]) {
+
+ const Verb verbs[] = {
+ { "help", VERB_ANY, VERB_ANY, 0, help },
+ { "pull-dck", 2, 3, 0, pull_dck },
+ {}
+ };
+
+ return dispatch_verb(argc, argv, verbs, NULL);
+}
+
+int main(int argc, char *argv[]) {
+ int r;
+
+ setlocale(LC_ALL, "");
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ goto finish;
+
+ r = import_main(argc, argv);
+
+finish:
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
~ianmdlvl / elogind.git / commitdiff