Systemd/src/shared/import-util.c
Lennart Poettering 0c69794138 tree-wide: remove Lennart's copyright lines
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00

167 lines
4.1 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
#include <string.h>
#include "alloc-util.h"
#include "btrfs-util.h"
#include "import-util.h"
#include "log.h"
#include "macro.h"
#include "path-util.h"
#include "string-table.h"
#include "string-util.h"
#include "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 = TAKE_PTR(q);
return 0;
}
int import_assign_pool_quota_and_warn(const char *path) {
int r;
r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true);
if (r == -ENOTTY) {
log_debug_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, as directory is not on btrfs or not a subvolume. Ignoring.");
return 0;
}
if (r < 0)
return log_error_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines: %m");
if (r > 0)
log_info("Set up default quota hierarchy for /var/lib/machines.");
r = btrfs_subvol_auto_qgroup(path, 0, true);
if (r == -ENOTTY) {
log_debug_errno(r, "Failed to set up quota hierarchy for %s, as directory is not on btrfs or not a subvolume. Ignoring.", path);
return 0;
}
if (r < 0)
return log_error_errno(r, "Failed to set up default quota hierarchy for %s: %m", path);
if (r > 0)
log_info("Set up default quota hierarchy for %s.", path);
return 0;
}