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tests: add a helper that dumps /run/utmp in detail

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utmpdump doesn't print all the details. Looking at the list if useful
when trying to tweak the wall filtering logic.

This doesn't do much, but at least it serves as a smoke test for the cleanup
functions.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2022-05-31 15:23:35 +02:00
parent 1661833238
commit e31355bbc1
2 changed files with 63 additions and 0 deletions
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2
src/test/meson.build
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@@ -614,6 +614,8 @@ tests += [
[files('test-journal-importer.c')],
[files('test-utmp.c')],
[files('test-udev.c'),
[libudevd_core,
libshared],

61
src/test/test-utmp.c Normal file
View File

@@ -0,0 +1,61 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "format-util.h"
#include "socket-util.h"
#include "stdio-util.h"
#include "string-util.h"
#include "utmp-wtmp.h"
#include "tests.h"
#ifndef UT_LINESIZE
# define UT_LINESIZE 32
#endif
#ifndef UT_NAMESIZE
# define UT_NAMESIZE 32
#endif
#ifndef UT_HOSTSIZE
# define UT_HOSTSIZE 256
#endif
TEST(dump_run_utmp) {
_unused_ _cleanup_(utxent_cleanup) bool utmpx = false;
utmpx = utxent_start();
for (struct utmpx *u; (u = getutxent()); ) {
char _type_buf[DECIMAL_STR_MAX(short)];
const char *type =
u->ut_type == EMPTY ? "EMPTY" :
u->ut_type == RUN_LVL ? "RUN_LVL" :
u->ut_type == BOOT_TIME ? "BOOT_TIME" :
u->ut_type == NEW_TIME ? "NEW_TIME" :
u->ut_type == OLD_TIME ? "OLD_TIME" :
u->ut_type == INIT_PROCESS ? "INIT_PROCESS" :
u->ut_type == LOGIN_PROCESS ? "LOGIN_PROCESS" :
u->ut_type == USER_PROCESS ? "USER_PROCESS" :
u->ut_type == DEAD_PROCESS ? "DEAD_PROCESS" :
u->ut_type == ACCOUNTING ? "ACCOUNTING" :
_type_buf;
if (type == _type_buf)
xsprintf(_type_buf, "%hd", u->ut_type);
union in_addr_union addr = {};
memcpy(&addr, u->ut_addr_v6, MIN(sizeof(addr), sizeof(u->ut_addr_v6)));
_cleanup_free_ char *pretty = NULL;
bool is_ipv4 = memeqzero((const uint8_t*) &addr + 4, sizeof(addr) - 4);
(void) in_addr_to_string(is_ipv4 ? AF_INET : AF_INET6,
&addr, &pretty);
log_info("%14s %10"PID_PRI" line=%-7.*s id=%-4.4s name=%-8.*s session=%lu host=%.*s addr=%s",
type,
u->ut_pid,
UT_LINESIZE, u->ut_line,
u->ut_id,
UT_NAMESIZE, u->ut_user,
(long unsigned) u->ut_session,
UT_HOSTSIZE, u->ut_host,
strempty(pretty));
}
}
DEFINE_TEST_MAIN(LOG_DEBUG);