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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/nspawn/nspawn-util.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/nspawn/nspawn-util.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/nspawn/nspawn-util.c b/src/nspawn/nspawn-util.c new file mode 100644 index 0000000..830ac39 --- /dev/null +++ b/src/nspawn/nspawn-util.c @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "alloc-util.h" +#include "glob-util.h" +#include "log.h" +#include "nspawn-util.h" +#include "parse-util.h" +#include "path-util.h" +#include "string-util.h" + +int systemd_installation_has_version(const char *root, const char *minimal_version) { + int r; + + /* Try to guess if systemd installation is later than the specified version. This + * is hacky and likely to yield false negatives, particularly if the installation + * is non-standard. False positives should be relatively rare. + */ + + FOREACH_STRING(pattern, + /* /lib works for systems without usr-merge, and for systems with a sane + * usr-merge, where /lib is a symlink to /usr/lib. /usr/lib is necessary + * for Gentoo which does a merge without making /lib a symlink. + * Also support multiarch paths von Debian/Ubuntu; *-linux-* is a small + * optimization based on the naming scheme of existing multiarch tuples. + */ + "/lib/systemd/libsystemd-shared-*.so", + "/lib64/systemd/libsystemd-shared-*.so", + "/usr/lib/*-linux-*/systemd/libsystemd-shared-*.so", + "/usr/lib/systemd/libsystemd-shared-*.so", + "/usr/lib64/systemd/libsystemd-shared-*.so") { + + _cleanup_strv_free_ char **names = NULL; + _cleanup_free_ char *path = NULL; + char *c; + + path = path_join(root, pattern); + if (!path) + return -ENOMEM; + + r = glob_extend(&names, path, 0); + if (r == -ENOENT) + continue; + if (r < 0) + return r; + + assert_se(c = endswith(path, "*.so")); + *c = '\0'; /* truncate the glob part */ + + STRV_FOREACH(name, names) { + /* This is most likely to run only once, hence let's not optimize anything. */ + char *t, *t2; + + t = startswith(basename(*name), "libsystemd-shared-"); + if (!t) + continue; + + t2 = endswith(t, ".so"); + if (!t2) + continue; + *t2 = '\0'; + + r = strverscmp_improved(t, minimal_version); + log_debug("Found libsystemd shared at \"%s.so\", version %s (%s).", + *name, t, + r >= 0 ? "OK" : "too old"); + if (r >= 0) + return true; + } + } + + return false; +} |