/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2015 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 "util.h" #include "import-util.h" int import_url_last_component(const char *url, char **ret) { const char *e, *p; char *s; e = strchrnul(url, '?'); while (e > url && e[-1] == '/') e--; p = e; while (p > url && p[-1] != '/') p--; if (e <= p) return -EINVAL; s = strndup(p, e - p); if (!s) return -ENOMEM; *ret = s; return 0; } int import_url_change_last_component(const char *url, const char *suffix, char **ret) { const char *e; char *s; assert(url); assert(ret); e = strchrnul(url, '?'); while (e > url && e[-1] == '/') e--; while (e > url && e[-1] != '/') e--; if (e <= url) return -EINVAL; s = new(char, (e - url) + strlen(suffix) + 1); if (!s) return -ENOMEM; strcpy(mempcpy(s, url, e - url), suffix); *ret = s; return 0; } static const char* const import_verify_table[_IMPORT_VERIFY_MAX] = { [IMPORT_VERIFY_NO] = "no", [IMPORT_VERIFY_CHECKSUM] = "checksum", [IMPORT_VERIFY_SIGNATURE] = "signature", }; DEFINE_STRING_TABLE_LOOKUP(import_verify, ImportVerify); int tar_strip_suffixes(const char *name, char **ret) { const char *e; char *s; e = endswith(name, ".tar"); if (!e) e = endswith(name, ".tar.xz"); if (!e) e = endswith(name, ".tar.gz"); if (!e) e = endswith(name, ".tar.bz2"); if (!e) e = endswith(name, ".tgz"); if (!e) e = strchr(name, 0); if (e <= name) return -EINVAL; s = strndup(name, e - name); if (!s) return -ENOMEM; *ret = s; return 0; } int raw_strip_suffixes(const char *p, char **ret) { static const char suffixes[] = ".xz\0" ".gz\0" ".bz2\0" ".raw\0" ".qcow2\0" ".img\0" ".bin\0"; _cleanup_free_ char *q = NULL; q = strdup(p); if (!q) return -ENOMEM; for (;;) { const char *sfx; bool changed = false; NULSTR_FOREACH(sfx, suffixes) { char *e; e = endswith(q, sfx); if (e) { *e = 0; changed = true; } } if (!changed) break; } *ret = q; q = NULL; return 0; } bool dkr_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 dkr_id_is_valid(const char *id) { if (!filename_is_valid(id)) return false; if (!in_charset(id, "0123456789abcdef")) return false; return true; }