static int
pkg_load_message_from_file(int fd, struct pkg *pkg, const char *path)
{
char *buf = NULL;
off_t size = 0;
int ret;
ucl_object_t *obj;
assert(pkg != NULL);
assert(path != NULL);
if (faccessat(fd, path, F_OK, 0) == 0) {
pkg_debug(1, "Reading message: '%s'", path);
if ((ret = file_to_bufferat(fd, path, &buf, &size)) != EPKG_OK) {
return (ret);
}
if (*buf == '[') {
ret = pkg_message_from_str(pkg, buf, size);
free(buf);
return (ret);
} else {
obj = ucl_object_fromstring_common(buf, size,
UCL_STRING_RAW|UCL_STRING_TRIM);
ret = pkg_message_from_ucl(pkg, obj);
ucl_object_unref(obj);
free(buf);
return (ret);
}
}
return (EPKG_FATAL);
}
static void
attempt_to_merge(int rootfd, struct pkg_config_file *rcf, struct pkg *local,
bool merge)
{
const struct pkg_file *lf = NULL;
struct sbuf *newconf;
struct pkg_config_file *lcf = NULL;
char *localconf = NULL;
off_t sz;
char *localsum;
if (rcf == NULL) {
pkg_debug(3, "No remote config file");
return;
}
if (local == NULL) {
pkg_debug(3, "No local package");
return;
}
if (!pkg_is_config_file(local, rcf->path, &lf, &lcf)) {
pkg_debug(3, "No local package");
return;
}
if (lcf->content == NULL) {
pkg_debug(3, "Empty configuration content for local package");
return;
}
pkg_debug(1, "Config file found %s", rcf->path);
if (file_to_bufferat(rootfd, RELATIVE_PATH(rcf->path), &localconf, &sz) != EPKG_OK)
return;
pkg_debug(2, "size: %d vs %d", sz, strlen(lcf->content));
if (sz == strlen(lcf->content)) {
pkg_debug(2, "Ancient vanilla and deployed conf are the same size testing checksum");
localsum = pkg_checksum_data(localconf, sz,
PKG_HASH_TYPE_SHA256_HEX);
if (localsum && strcmp(localsum, lf->sum) == 0) {
pkg_debug(2, "Checksum are the same %d", strlen(localconf));
free(localconf);
free(localsum);
return;
}
free(localsum);
pkg_debug(2, "Checksum are different %d", strlen(localconf));
}
rcf->status = MERGE_FAILED;
if (!merge) {
free(localconf);
return;
}
pkg_debug(1, "Attempting to merge %s", rcf->path);
newconf = sbuf_new_auto();
if (merge_3way(lcf->content, localconf, rcf->content, newconf) != 0) {
pkg_emit_error("Impossible to merge configuration file");
} else {
sbuf_finish(newconf);
rcf->newcontent = strdup(sbuf_data(newconf));
rcf->status = MERGE_SUCCESS;
}
sbuf_delete(newconf);
free(localconf);
}
