_public_ int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) {
int r, i, j;
va_list ap;
struct iovec *iov = NULL;
char *f;
va_start(ap, format);
i = fill_iovec_sprintf(format, ap, 3, &iov);
va_end(ap);
if (_unlikely_(i < 0)) {
r = i;
goto finish;
}
ALLOCA_CODE_FUNC(f, func);
IOVEC_SET_STRING(iov[0], file);
IOVEC_SET_STRING(iov[1], line);
IOVEC_SET_STRING(iov[2], f);
r = sd_journal_sendv(iov, i);
finish:
for (j = 3; j < i; j++)
free(iov[j].iov_base);
free(iov);
return r;
}
/**
* ot_log_structured:
* @message: Text message to send
* @keys: (allow-none) (array zero-terminated=1) (element-type utf8): Optional structured data
*
* Log structured data in an operating-system specific fashion. The
* parameter @opts should be an array of UTF-8 KEY=VALUE strings.
* This function does not support binary data. See
* http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html
* for more information about fields that can be used on a systemd
* system.
*/
static void
ot_log_structured (const char *message,
const char *const *keys)
{
#ifdef HAVE_LIBSYSTEMD
const char *const*iter;
g_autofree char *msgkey = NULL;
guint i, n_opts;
struct iovec *iovs;
for (n_opts = 0, iter = keys; *iter; iter++, n_opts++)
;
n_opts++; /* Add one for MESSAGE= */
iovs = g_alloca (sizeof (struct iovec) * n_opts);
for (i = 0, iter = keys; *iter; iter++, i++) {
iovs[i].iov_base = (char*)keys[i];
iovs[i].iov_len = strlen (keys[i]);
}
g_assert(i == n_opts-1);
msgkey = g_strconcat ("MESSAGE=", message, NULL);
iovs[i].iov_base = msgkey;
iovs[i].iov_len = strlen (msgkey);
// The code location isn't useful since we're wrapping
sd_journal_sendv (iovs, n_opts);
#else
g_print ("%s\n", message);
#endif
}
static int journald_entry(FILE *fp)
{
struct iovec *iovec;
char *buf = NULL;
ssize_t sz;
int n, lines, vectors = 8, ret;
size_t dummy = 0;
iovec = xmalloc(vectors * sizeof(struct iovec));
for (lines = 0; /* nothing */ ; lines++) {
buf = NULL;
sz = getline(&buf, &dummy, fp);
if (sz == -1)
break;
if (0 < sz && buf[sz - 1] == '\n') {
sz--;
buf[sz] = '\0';
}
if (lines == vectors) {
vectors *= 2;
iovec = xrealloc(iovec, vectors * sizeof(struct iovec));
}
iovec[lines].iov_base = buf;
iovec[lines].iov_len = sz;
}
ret = sd_journal_sendv(iovec, lines);
for (n = 0; n < lines; n++)
free(iovec[n].iov_base);
free(iovec);
return ret;
}
_public_ int sd_journal_printv(int priority, const char *format, va_list ap) {
/* FIXME: Instead of limiting things to LINE_MAX we could do a
C99 variable-length array on the stack here in a loop. */
char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1];
struct iovec iov[2];
assert_return(priority >= 0, -EINVAL);
assert_return(priority <= 7, -EINVAL);
assert_return(format, -EINVAL);
xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK);
memcpy(buffer, "MESSAGE=", 8);
vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap);
/* Strip trailing whitespace, keep prefix whitespace. */
(void) strstrip(buffer);
/* Suppress empty lines */
if (isempty(buffer+8))
return 0;
zero(iov);
IOVEC_SET_STRING(iov[0], buffer);
IOVEC_SET_STRING(iov[1], p);
return sd_journal_sendv(iov, 2);
}
static PyObject *journal_sendv(PyObject *self, PyObject *args) {
struct iovec *iov = NULL;
int argc;
int i, r;
PyObject *ret = NULL;
PyObject **encoded;
/* Allocate an array for the argument strings */
argc = PyTuple_Size(args);
encoded = alloca0(argc * sizeof(PyObject*));
/* Allocate sufficient iovector space for the arguments. */
iov = alloca(argc * sizeof(struct iovec));
/* Iterate through the Python arguments and fill the iovector. */
for (i = 0; i < argc; ++i) {
PyObject *item = PyTuple_GetItem(args, i);
char *stritem;
Py_ssize_t length;
if (PyUnicode_Check(item)) {
encoded[i] = PyUnicode_AsEncodedString(item, "utf-8", "strict");
if (encoded[i] == NULL)
goto out;
item = encoded[i];
}
if (PyBytes_AsStringAndSize(item, &stritem, &length))
goto out;
iov[i].iov_base = stritem;
iov[i].iov_len = length;
}
/* Send the iovector to the journal. */
r = sd_journal_sendv(iov, argc);
if (r < 0) {
errno = -r;
PyErr_SetFromErrno(PyExc_IOError);
goto out;
}
/* End with success. */
Py_INCREF(Py_None);
ret = Py_None;
out:
for (i = 0; i < argc; ++i)
Py_XDECREF(encoded[i]);
return ret;
}
static void do_journal_append(char *file)
{
struct iovec iovec[5];
int r, f, j = 0;
ssize_t n;
_cleanup_free_ char *bootchart_file = NULL, *bootchart_message = NULL,
*p = NULL;
bootchart_file = strappend("BOOTCHART_FILE=", file);
if (bootchart_file)
IOVEC_SET_STRING(iovec[j++], bootchart_file);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=7");
bootchart_message = strjoin("MESSAGE=Bootchart created: ", file, NULL);
if (bootchart_message)
IOVEC_SET_STRING(iovec[j++], bootchart_message);
p = malloc(9 + BOOTCHART_MAX);
if (!p) {
r = log_oom();
return;
}
memcpy(p, "BOOTCHART=", 10);
f = open(file, O_RDONLY);
if (f < 0) {
log_error("Failed to read bootchart data: %m\n");
return;
}
n = loop_read(f, p + 10, BOOTCHART_MAX, false);
if (n < 0) {
log_error("Failed to read bootchart data: %s\n", strerror(-n));
close(f);
return;
}
close(f);
iovec[j].iov_base = p;
iovec[j].iov_len = 10 + n;
j++;
r = sd_journal_sendv(iovec, j);
if (r < 0)
log_error("Failed to send bootchart: %s", strerror(-r));
}
static int do_journal_append(char *file) {
_cleanup_free_ char *bootchart_message = NULL;
_cleanup_free_ char *bootchart_file = NULL;
_cleanup_free_ char *p = NULL;
_cleanup_close_ int fd = -1;
struct iovec iovec[5];
int r, j = 0;
ssize_t n;
bootchart_file = strappend("BOOTCHART_FILE=", file);
if (!bootchart_file)
return log_oom();
IOVEC_SET_STRING(iovec[j++], bootchart_file);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=7");
bootchart_message = strjoin("MESSAGE=Bootchart created: ", file, NULL);
if (!bootchart_message)
return log_oom();
IOVEC_SET_STRING(iovec[j++], bootchart_message);
p = malloc(10 + BOOTCHART_MAX);
if (!p)
return log_oom();
memcpy(p, "BOOTCHART=", 10);
fd = open(file, O_RDONLY|O_CLOEXEC);
if (fd < 0)
return log_error_errno(errno, "Failed to open bootchart data \"%s\": %m", file);
n = loop_read(fd, p + 10, BOOTCHART_MAX, false);
if (n < 0)
return log_error_errno(n, "Failed to read bootchart data: %m");
iovec[j].iov_base = p;
iovec[j].iov_len = 10 + n;
j++;
r = sd_journal_sendv(iovec, j);
if (r < 0)
log_error_errno(r, "Failed to send bootchart: %m");
return 0;
}
static int sendv (lua_State *L) {
int res;
size_t i, n;
struct iovec *iov;
luaL_checktype(L, 1, LUA_TTABLE);
n = lua_rawlen(L, 1);
iov = lua_newuserdata(L, n*sizeof(struct iovec)); /* allocate via lua so we get free cleanup */
for (i=0; i<n; i++) {
lua_rawgeti(L, 1, i+1);
/* Make sure value is a string, we do **not** want automatic coercion */
if (lua_type(L, -1) != LUA_TSTRING) {
return luaL_argerror(L, 1, "non-string table entry");
}
iov[i].iov_base = (void*)lua_tolstring(L, -1, &iov[i].iov_len);
lua_pop(L, 1);
}
res = sd_journal_sendv(iov, n);
return handle_log_result(L, res);
}
_public_ int sd_journal_sendv_with_location(
const char *file, const char *line,
const char *func,
const struct iovec *iov, int n) {
struct iovec *niov;
char *f;
assert_return(iov, -EINVAL);
assert_return(n > 0, -EINVAL);
niov = alloca(sizeof(struct iovec) * (n + 3));
memcpy(niov, iov, sizeof(struct iovec) * n);
ALLOCA_CODE_FUNC(f, func);
IOVEC_SET_STRING(niov[n++], file);
IOVEC_SET_STRING(niov[n++], line);
IOVEC_SET_STRING(niov[n++], f);
return sd_journal_sendv(niov, n);
}
static int journald_entry(struct logger_ctl *ctl, FILE *fp)
{
struct iovec *iovec;
char *buf = NULL;
ssize_t sz;
int n, lines, vectors = 8, ret = 0;
size_t dummy = 0;
iovec = xmalloc(vectors * sizeof(struct iovec));
for (lines = 0; /* nothing */ ; lines++) {
buf = NULL;
sz = getline(&buf, &dummy, fp);
if (sz == -1)
break;
if (0 < sz && buf[sz - 1] == '\n') {
sz--;
buf[sz] = '\0';
}
if (lines == vectors) {
vectors *= 2;
if (IOV_MAX < vectors)
errx(EXIT_FAILURE, _("maximum input lines (%d) exceeded"), IOV_MAX);
iovec = xrealloc(iovec, vectors * sizeof(struct iovec));
}
iovec[lines].iov_base = buf;
iovec[lines].iov_len = sz;
}
if (!ctl->noact)
ret = sd_journal_sendv(iovec, lines);
if (ctl->stderr_printout) {
for (n = 0; n < lines; n++)
fprintf(stderr, "%s\n", (char *) iovec[n].iov_base);
}
for (n = 0; n < lines; n++)
free(iovec[n].iov_base);
free(iovec);
return ret;
}
_public_ int sd_journal_send(const char *format, ...) {
int r, i, j;
va_list ap;
struct iovec *iov = NULL;
va_start(ap, format);
i = fill_iovec_sprintf(format, ap, 0, &iov);
va_end(ap);
if (_unlikely_(i < 0)) {
r = i;
goto finish;
}
r = sd_journal_sendv(iov, i);
finish:
for (j = 0; j < i; j++)
free(iov[j].iov_base);
free(iov);
return r;
}
_public_ int sd_journal_printv(int priority, const char *format, va_list ap) {
/* FIXME: Instead of limiting things to LINE_MAX we could do a
C99 variable-length array on the stack here in a loop. */
char buffer[8 + LINE_MAX], p[11]; struct iovec iov[2];
assert_return(priority >= 0, -EINVAL);
assert_return(priority <= 7, -EINVAL);
assert_return(format, -EINVAL);
snprintf(p, sizeof(p), "PRIORITY=%i", priority & LOG_PRIMASK);
char_array_0(p);
memcpy(buffer, "MESSAGE=", 8);
vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap);
char_array_0(buffer);
zero(iov);
IOVEC_SET_STRING(iov[0], buffer);
IOVEC_SET_STRING(iov[1], p);
return sd_journal_sendv(iov, 2);
}
int main(int argc, char* argv[]) {
int r, j = 0;
_cleanup_free_ char *p = NULL;
ssize_t n;
pid_t pid;
uid_t uid;
gid_t gid;
struct iovec iovec[14];
_cleanup_free_ char *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL,
*core_timestamp = NULL, *core_comm = NULL, *core_exe = NULL, *core_unit = NULL,
*core_session = NULL, *core_message = NULL, *core_cmdline = NULL, *t = NULL;
prctl(PR_SET_DUMPABLE, 0);
if (argc != _ARG_MAX) {
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
log_open();
log_error("Invalid number of arguments passed from kernel.");
r = -EINVAL;
goto finish;
}
r = parse_pid(argv[ARG_PID], &pid);
if (r < 0) {
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
log_open();
log_error("Failed to parse PID.");
goto finish;
}
if (cg_pid_get_unit(pid, &t) >= 0) {
if (streq(t, SPECIAL_JOURNALD_SERVICE)) {
/* Make sure we don't make use of the journal,
* if it's the journal which is crashing */
log_set_target(LOG_TARGET_KMSG);
log_open();
r = divert_coredump();
goto finish;
}
core_unit = strappend("COREDUMP_UNIT=", t);
} else if (cg_pid_get_user_unit(pid, &t) >= 0)
core_unit = strappend("COREDUMP_USER_UNIT=", t);
if (core_unit)
IOVEC_SET_STRING(iovec[j++], core_unit);
/* OK, now we know it's not the journal, hence make use of
* it */
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
log_open();
r = parse_uid(argv[ARG_UID], &uid);
if (r < 0) {
log_error("Failed to parse UID.");
goto finish;
}
r = parse_gid(argv[ARG_GID], &gid);
if (r < 0) {
log_error("Failed to parse GID.");
goto finish;
}
core_pid = strappend("COREDUMP_PID=", argv[ARG_PID]);
if (core_pid)
IOVEC_SET_STRING(iovec[j++], core_pid);
core_uid = strappend("COREDUMP_UID=", argv[ARG_UID]);
if (core_uid)
IOVEC_SET_STRING(iovec[j++], core_uid);
core_gid = strappend("COREDUMP_GID=", argv[ARG_GID]);
if (core_gid)
IOVEC_SET_STRING(iovec[j++], core_gid);
core_signal = strappend("COREDUMP_SIGNAL=", argv[ARG_SIGNAL]);
if (core_signal)
IOVEC_SET_STRING(iovec[j++], core_signal);
core_comm = strappend("COREDUMP_COMM=", argv[ARG_COMM]);
if (core_comm)
IOVEC_SET_STRING(iovec[j++], core_comm);
#ifdef HAVE_LOGIND
if (sd_pid_get_session(pid, &t) >= 0) {
core_session = strappend("COREDUMP_SESSION=", t);
free(t);
if (core_session)
IOVEC_SET_STRING(iovec[j++], core_session);
}
#endif
if (get_process_exe(pid, &t) >= 0) {
core_exe = strappend("COREDUMP_EXE=", t);
free(t);
if (core_exe)
IOVEC_SET_STRING(iovec[j++], core_exe);
}
if (get_process_cmdline(pid, 0, false, &t) >= 0) {
core_cmdline = strappend("COREDUMP_CMDLINE=", t);
free(t);
if (core_cmdline)
IOVEC_SET_STRING(iovec[j++], core_cmdline);
}
core_timestamp = strjoin("COREDUMP_TIMESTAMP=", argv[ARG_TIMESTAMP], "000000", NULL);
if (core_timestamp)
IOVEC_SET_STRING(iovec[j++], core_timestamp);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=2");
core_message = strjoin("MESSAGE=Process ", argv[ARG_PID], " (", argv[ARG_COMM], ") dumped core.", NULL);
if (core_message)
IOVEC_SET_STRING(iovec[j++], core_message);
/* Now, let's drop privileges to become the user who owns the
* segfaulted process and allocate the coredump memory under
* his uid. This also ensures that the credentials journald
* will see are the ones of the coredumping user, thus making
* sure the user himself gets access to the core dump. */
if (setresgid(gid, gid, gid) < 0 ||
setresuid(uid, uid, uid) < 0) {
log_error("Failed to drop privileges: %m");
r = -errno;
goto finish;
}
p = malloc(9 + COREDUMP_MAX);
if (!p) {
r = log_oom();
goto finish;
}
memcpy(p, "COREDUMP=", 9);
n = loop_read(STDIN_FILENO, p + 9, COREDUMP_MAX, false);
if (n < 0) {
log_error("Failed to read core dump data: %s", strerror(-n));
r = (int) n;
goto finish;
}
iovec[j].iov_base = p;
iovec[j].iov_len = 9 + n;
j++;
r = sd_journal_sendv(iovec, j);
if (r < 0)
log_error("Failed to send coredump: %s", strerror(-r));
finish:
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
int main(int argc, char **argv)
{
abrt_init(argv);
/* I18n */
setlocale(LC_ALL, "");
#if ENABLE_NLS
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#endif
/* Can't keep these strings/structs static: _() doesn't support that */
const char *program_usage_string = _(
"& [-v] [-d DIR] [-m MESSAGEID] [-F FMTFILE] [-p NONE|ESSENTIAL|FULL] [-s SYSLOGID]\n"
"\n"
"Reports problem information into systemd journal.\n"
"\n"
"The tool reads problem directory DIR and sends its details\n"
"into systemd journal as a message. If MESSAGEID is defined, the tool\n"
"creates a catalog message as well.\n"
);
enum {
OPT_v = 1 << 0,
OPT_d = 1 << 1,
OPT_m = 1 << 2,
OPT_F = 1 << 3,
OPT_p = 1 << 4,
OPT_s = 1 << 5,
OPT_D = 1 << 6,
};
const char *dump_dir_name = ".";
const char *message_id = NULL;
const char *fmt_file = NULL;
const char *dump = NULL;
const char *syslog_id = NULL;
/* Keep enum above and order of options below in sync! */
struct options program_options[] = {
OPT__VERBOSE(&g_verbose),
OPT_STRING('d', NULL , &dump_dir_name, "DIR" , _("Problem directory")),
OPT_STRING('m', "message-id" , &message_id, "STR" , _("Catalog message id")),
OPT_STRING('F', NULL , &fmt_file , "FILE" , _("Formatting file for catalog message")),
OPT_STRING('p', "dump" , &dump , "STR" , _("Dump problem dir into systemd journal fields")),
OPT_STRING('s', "syslog-id" , &syslog_id , "STR" , _("Define SYSLOG_IDENTIFIER systemd journal field")),
OPT_BOOL( 'D', NULL , NULL , _("Debug")),
OPT_END()
};
unsigned opts = parse_opts(argc, argv, program_options, program_usage_string);
unsigned dump_opt = DUMP_NONE;
if (opts & OPT_p)
{
if (dump && strcmp(dump, "NONE") == 0)
/* PASS */;
else if (dump && strcmp(dump, "ESSENTIAL") == 0)
dump_opt = DUMP_ESSENTIAL;
else if (dump && strcmp(dump, "FULL") == 0)
dump_opt = DUMP_FULL;
else
{
error_msg("Parameter --dump takes NONE|ESSENTIAL|FULL values");
show_usage_and_die(program_usage_string, program_options);
}
}
export_abrt_envvars(0);
problem_data_t *problem_data = create_problem_data_for_reporting(dump_dir_name);
if (!problem_data)
xfunc_die(); /* create_problem_data_for_reporting already emitted error msg */
problem_formatter_t *pf = problem_formatter_new();
if (fmt_file)
{
if (problem_formatter_load_file(pf, fmt_file))
error_msg_and_die("Invalid format file: %s", fmt_file);
}
else
{
if (problem_formatter_load_string(pf, PROBLEM_REPORT_DEFAULT_TEMPLATE))
error_msg_and_die("BUG: Invalid default problem report format string");
}
problem_report_settings_t report_settings = problem_formatter_get_settings(pf);
report_settings.prs_shortbt_max_frames = 5;
report_settings.prs_shortbt_max_text_size = 0; /* always short bt */
problem_formatter_set_settings(pf, report_settings);
/* Modify problem_data to meet reporter's needs */
/* We want to have only binary name in problem report assigned to executable element */
const char *exe = problem_data_get_content_or_NULL(problem_data, FILENAME_EXECUTABLE);
char *binary_name = NULL;
if (exe)
binary_name = strrchr(exe, '/') + 1;
if (binary_name)
problem_data_add_text_noteditable(problem_data, BINARY_NAME, binary_name);
/* crash_function element is neeeded by systemd journal messages, save ??, if it doesn't exist */
const char *crash_function = problem_data_get_content_or_NULL(problem_data, FILENAME_CRASH_FUNCTION);
if (!crash_function)
problem_data_add_text_noteditable(problem_data, "crash_function", "??");
/* Add SYSLOG_IDENTIFIER into problem data */
if (syslog_id || (syslog_id = getenv("REPORTER_JOURNAL_SYSLOG_ID")))
problem_data_add_text_noteditable(problem_data, SYSLOG_ID, syslog_id);
/* Add MESSAGE_ID into problem data */
if (message_id)
problem_data_add_text_noteditable(problem_data, MESSAGE_ID, message_id);
/* Generating of problem report */
problem_report_t *pr = NULL;
if (problem_formatter_generate_report(pf, problem_data, &pr))
error_msg_and_die("Failed to format bug report from problem data");
/* Debug */
if (opts & OPT_D)
{
log("Message: %s\n"
"\n"
"%s"
"\n"
, problem_report_get_summary(pr)
, problem_report_get_description(pr)
);
problem_data_free(problem_data);
problem_report_free(pr);
problem_formatter_free(pf);
return 0;
}
msg_content_t *msg_c = create_journal_message(problem_data, pr, dump_opt);
/* post journal message */
sd_journal_sendv(msg_content_get_data(msg_c), msg_content_get_size(msg_c));
msg_content_free(msg_c);
problem_data_free(problem_data);
problem_formatter_free(pf);
problem_report_free(pr);
return 0;
}
int main(int argc, char* argv[]) {
/* The small core field we allocate on the stack, to keep things simple */
char
*core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL,
*core_session = NULL, *core_exe = NULL, *core_comm = NULL, *core_cmdline = NULL,
*core_cgroup = NULL, *core_cwd = NULL, *core_root = NULL, *core_unit = NULL,
*core_slice = NULL;
/* The larger ones we allocate on the heap */
_cleanup_free_ char
*core_timestamp = NULL, *core_message = NULL, *coredump_data = NULL, *core_owner_uid = NULL,
*core_open_fds = NULL, *core_proc_status = NULL, *core_proc_maps = NULL, *core_proc_limits = NULL,
*core_proc_cgroup = NULL, *core_environ = NULL;
_cleanup_free_ char *exe = NULL, *comm = NULL, *filename = NULL;
const char *info[_INFO_LEN];
_cleanup_close_ int coredump_fd = -1;
struct iovec iovec[26];
uint64_t coredump_size;
int r, j = 0;
uid_t uid, owner_uid;
gid_t gid;
pid_t pid;
char *t;
const char *p;
/* Make sure we never enter a loop */
prctl(PR_SET_DUMPABLE, 0);
/* First, log to a safe place, since we don't know what
* crashed and it might be journald which we'd rather not log
* to then. */
log_set_target(LOG_TARGET_KMSG);
log_open();
if (argc < INFO_COMM + 1) {
log_error("Not enough arguments passed from kernel (%d, expected %d).",
argc - 1, INFO_COMM + 1 - 1);
r = -EINVAL;
goto finish;
}
/* Ignore all parse errors */
parse_config();
log_debug("Selected storage '%s'.", coredump_storage_to_string(arg_storage));
log_debug("Selected compression %s.", yes_no(arg_compress));
r = parse_uid(argv[INFO_UID + 1], &uid);
if (r < 0) {
log_error("Failed to parse UID.");
goto finish;
}
r = parse_pid(argv[INFO_PID + 1], &pid);
if (r < 0) {
log_error("Failed to parse PID.");
goto finish;
}
r = parse_gid(argv[INFO_GID + 1], &gid);
if (r < 0) {
log_error("Failed to parse GID.");
goto finish;
}
if (get_process_comm(pid, &comm) < 0) {
log_warning("Failed to get COMM, falling back to the command line.");
comm = strv_join(argv + INFO_COMM + 1, " ");
}
if (get_process_exe(pid, &exe) < 0)
log_warning("Failed to get EXE.");
info[INFO_PID] = argv[INFO_PID + 1];
info[INFO_UID] = argv[INFO_UID + 1];
info[INFO_GID] = argv[INFO_GID + 1];
info[INFO_SIGNAL] = argv[INFO_SIGNAL + 1];
info[INFO_TIMESTAMP] = argv[INFO_TIMESTAMP + 1];
info[INFO_COMM] = comm;
info[INFO_EXE] = exe;
if (cg_pid_get_unit(pid, &t) >= 0) {
if (streq(t, SPECIAL_JOURNALD_SERVICE)) {
free(t);
/* If we are journald, we cut things short,
* don't write to the journal, but still
* create a coredump. */
if (arg_storage != COREDUMP_STORAGE_NONE)
arg_storage = COREDUMP_STORAGE_EXTERNAL;
r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size);
if (r < 0)
goto finish;
r = maybe_remove_external_coredump(filename, coredump_size);
if (r < 0)
goto finish;
log_info("Detected coredump of the journal daemon itself, diverted to %s.", filename);
goto finish;
}
core_unit = strjoina("COREDUMP_UNIT=", t);
free(t);
} else if (cg_pid_get_user_unit(pid, &t) >= 0) {
core_unit = strjoina("COREDUMP_USER_UNIT=", t);
free(t);
}
if (core_unit)
IOVEC_SET_STRING(iovec[j++], core_unit);
/* OK, now we know it's not the journal, hence we can make use
* of it now. */
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
log_open();
core_pid = strjoina("COREDUMP_PID=", info[INFO_PID]);
IOVEC_SET_STRING(iovec[j++], core_pid);
core_uid = strjoina("COREDUMP_UID=", info[INFO_UID]);
IOVEC_SET_STRING(iovec[j++], core_uid);
core_gid = strjoina("COREDUMP_GID=", info[INFO_GID]);
IOVEC_SET_STRING(iovec[j++], core_gid);
core_signal = strjoina("COREDUMP_SIGNAL=", info[INFO_SIGNAL]);
IOVEC_SET_STRING(iovec[j++], core_signal);
if (sd_pid_get_session(pid, &t) >= 0) {
core_session = strjoina("COREDUMP_SESSION=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_session);
}
if (sd_pid_get_owner_uid(pid, &owner_uid) >= 0) {
r = asprintf(&core_owner_uid,
"COREDUMP_OWNER_UID=" UID_FMT, owner_uid);
if (r > 0)
IOVEC_SET_STRING(iovec[j++], core_owner_uid);
}
if (sd_pid_get_slice(pid, &t) >= 0) {
core_slice = strjoina("COREDUMP_SLICE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_slice);
}
if (comm) {
core_comm = strjoina("COREDUMP_COMM=", comm);
IOVEC_SET_STRING(iovec[j++], core_comm);
}
if (exe) {
core_exe = strjoina("COREDUMP_EXE=", exe);
IOVEC_SET_STRING(iovec[j++], core_exe);
}
if (get_process_cmdline(pid, 0, false, &t) >= 0) {
core_cmdline = strjoina("COREDUMP_CMDLINE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cmdline);
}
if (cg_pid_get_path_shifted(pid, NULL, &t) >= 0) {
core_cgroup = strjoina("COREDUMP_CGROUP=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cgroup);
}
if (compose_open_fds(pid, &t) >= 0) {
core_open_fds = strappend("COREDUMP_OPEN_FDS=", t);
free(t);
if (core_open_fds)
IOVEC_SET_STRING(iovec[j++], core_open_fds);
}
p = procfs_file_alloca(pid, "status");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_status = strappend("COREDUMP_PROC_STATUS=", t);
free(t);
if (core_proc_status)
IOVEC_SET_STRING(iovec[j++], core_proc_status);
}
p = procfs_file_alloca(pid, "maps");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_maps = strappend("COREDUMP_PROC_MAPS=", t);
free(t);
if (core_proc_maps)
IOVEC_SET_STRING(iovec[j++], core_proc_maps);
}
p = procfs_file_alloca(pid, "limits");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_limits = strappend("COREDUMP_PROC_LIMITS=", t);
free(t);
if (core_proc_limits)
IOVEC_SET_STRING(iovec[j++], core_proc_limits);
}
p = procfs_file_alloca(pid, "cgroup");
if (read_full_file(p, &t, NULL) >=0) {
core_proc_cgroup = strappend("COREDUMP_PROC_CGROUP=", t);
free(t);
if (core_proc_cgroup)
IOVEC_SET_STRING(iovec[j++], core_proc_cgroup);
}
if (get_process_cwd(pid, &t) >= 0) {
core_cwd = strjoina("COREDUMP_CWD=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cwd);
}
if (get_process_root(pid, &t) >= 0) {
core_root = strjoina("COREDUMP_ROOT=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_root);
}
if (get_process_environ(pid, &t) >= 0) {
core_environ = strappend("COREDUMP_ENVIRON=", t);
free(t);
if (core_environ)
IOVEC_SET_STRING(iovec[j++], core_environ);
}
core_timestamp = strjoin("COREDUMP_TIMESTAMP=", info[INFO_TIMESTAMP], "000000", NULL);
if (core_timestamp)
IOVEC_SET_STRING(iovec[j++], core_timestamp);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=2");
/* Vacuum before we write anything again */
coredump_vacuum(-1, arg_keep_free, arg_max_use);
/* Always stream the coredump to disk, if that's possible */
r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size);
if (r < 0)
/* skip whole core dumping part */
goto log;
/* If we don't want to keep the coredump on disk, remove it
* now, as later on we will lack the privileges for
* it. However, we keep the fd to it, so that we can still
* process it and log it. */
r = maybe_remove_external_coredump(filename, coredump_size);
if (r < 0)
goto finish;
if (r == 0) {
const char *coredump_filename;
coredump_filename = strjoina("COREDUMP_FILENAME=", filename);
IOVEC_SET_STRING(iovec[j++], coredump_filename);
}
/* Vacuum again, but exclude the coredump we just created */
coredump_vacuum(coredump_fd, arg_keep_free, arg_max_use);
/* Now, let's drop privileges to become the user who owns the
* segfaulted process and allocate the coredump memory under
* the user's uid. This also ensures that the credentials
* journald will see are the ones of the coredumping user,
* thus making sure the user gets access to the core
* dump. Let's also get rid of all capabilities, if we run as
* root, we won't need them anymore. */
r = drop_privileges(uid, gid, 0);
if (r < 0) {
log_error_errno(r, "Failed to drop privileges: %m");
goto finish;
}
#ifdef HAVE_ELFUTILS
/* Try to get a strack trace if we can */
if (coredump_size <= arg_process_size_max) {
_cleanup_free_ char *stacktrace = NULL;
r = coredump_make_stack_trace(coredump_fd, exe, &stacktrace);
if (r >= 0)
core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.\n\n", stacktrace, NULL);
else if (r == -EINVAL)
log_warning("Failed to generate stack trace: %s", dwfl_errmsg(dwfl_errno()));
else
log_warning_errno(r, "Failed to generate stack trace: %m");
}
if (!core_message)
#endif
log:
core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.", NULL);
if (core_message)
IOVEC_SET_STRING(iovec[j++], core_message);
/* Optionally store the entire coredump in the journal */
if (IN_SET(arg_storage, COREDUMP_STORAGE_JOURNAL, COREDUMP_STORAGE_BOTH) &&
coredump_size <= arg_journal_size_max) {
size_t sz = 0;
/* Store the coredump itself in the journal */
r = allocate_journal_field(coredump_fd, (size_t) coredump_size, &coredump_data, &sz);
if (r >= 0) {
iovec[j].iov_base = coredump_data;
iovec[j].iov_len = sz;
j++;
}
}
r = sd_journal_sendv(iovec, j);
if (r < 0)
log_error_errno(r, "Failed to log coredump: %m");
finish:
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
int k_sd_journal_send_xavp(str *rname)
{
struct _sr_xavp *rxavp, *nxavp;
int cnt, buflen, i, ret;
struct iovec *logv;
rxavp = xavp_get(rname, NULL);
if (!rxavp || rxavp->val.type != SR_XTYPE_XAVP) {
LM_ERR("not a valid xavp: %.*s?\n", rname->len, rname->s);
}
/* first, count xavp nodes */
for (nxavp = rxavp->val.v.xavp, cnt = 0;
nxavp;
nxavp = nxavp->next, cnt++);
if (cnt == 0) {
/* nothing to log? */
LM_NOTICE("empty xavp: %.*s?, no log event was sent to journald\n",
rname->len,
rname->s);
return 1;
}
logv = pkg_malloc(cnt * sizeof (struct iovec));
if (!logv) {
LM_ERR("failed to allocate pkg memory\n");
return -1;
}
ret = -1;
for (nxavp = rxavp->val.v.xavp, cnt = 0;
nxavp;
nxavp = nxavp->next, cnt++)
{
if (nxavp->val.type == SR_XTYPE_INT) {
buflen = snprintf(NULL, 0,
"%.*s=%d",
nxavp->name.len, nxavp->name.s,
nxavp->val.v.i);
logv[cnt].iov_base = pkg_malloc(buflen + 1/*snprintf's trailing \0*/);
if (!logv[cnt].iov_base ) {
LM_ERR("failed to allocate pkg memory\n");
goto free;
}
logv[cnt].iov_len = buflen;
snprintf(logv[cnt].iov_base, buflen + 1,
"%.*s=%d",
nxavp->name.len, nxavp->name.s,
nxavp->val.v.i);
} else if (nxavp->val.type == SR_XTYPE_STR) {
buflen = nxavp->name.len + 1 + nxavp->val.v.s.len;
logv[cnt].iov_base = pkg_malloc(buflen);
if (!logv[cnt].iov_base) {
LM_ERR("failed to allocate pkg memory\n");
goto free;
}
logv[cnt].iov_len = buflen;
memcpy(logv[cnt].iov_base, nxavp->name.s, nxavp->name.len);
((char*)logv[cnt].iov_base)[nxavp->name.len] = '=';
memcpy(((char*)(logv[cnt].iov_base)) + nxavp->name.len + 1,
nxavp->val.v.s.s,
nxavp->val.v.s.len);
} else {
LM_NOTICE("unsupported type %d for field %.*s, skipped...\n",
nxavp->val.type,
nxavp->name.len, nxavp->name.s);
logv[cnt].iov_len = 0;
logv[cnt].iov_base = NULL;
}
LM_DBG("added io slice %d: %.*s\n", cnt, (int)logv[cnt].iov_len, (char*)logv[cnt].iov_base);
}
if (sd_journal_sendv(logv, cnt) != 0) {
LM_ERR("sd_journal_sendv() failed\n");
} else {
ret = 1;
}
free:
for (i = 0 ; i < cnt ; i++) {
if (logv[i].iov_base) pkg_free(logv[i].iov_base);
}
pkg_free(logv);
return ret;
}
_public_ int sd_journal_sendv(const struct iovec *iov, int n) {
PROTECT_ERRNO;
int fd, r;
_cleanup_close_ int buffer_fd = -1;
struct iovec *w;
uint64_t *l;
int i, j = 0;
static const union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
.un.sun_path = "/run/systemd/journal/socket",
};
struct msghdr mh = {
.msg_name = (struct sockaddr*) &sa.sa,
.msg_namelen = SOCKADDR_UN_LEN(sa.un),
};
ssize_t k;
bool have_syslog_identifier = false;
bool seal = true;
assert_return(iov, -EINVAL);
assert_return(n > 0, -EINVAL);
w = newa(struct iovec, n * 5 + 3);
l = newa(uint64_t, n);
for (i = 0; i < n; i++) {
char *c, *nl;
if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1))
return -EINVAL;
c = memchr(iov[i].iov_base, '=', iov[i].iov_len);
if (_unlikely_(!c || c == iov[i].iov_base))
return -EINVAL;
have_syslog_identifier = have_syslog_identifier ||
(c == (char *) iov[i].iov_base + 17 &&
startswith(iov[i].iov_base, "SYSLOG_IDENTIFIER"));
nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len);
if (nl) {
if (_unlikely_(nl < c))
return -EINVAL;
/* Already includes a newline? Bummer, then
* let's write the variable name, then a
* newline, then the size (64bit LE), followed
* by the data and a final newline */
w[j].iov_base = iov[i].iov_base;
w[j].iov_len = c - (char*) iov[i].iov_base;
j++;
IOVEC_SET_STRING(w[j++], "\n");
l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1);
w[j].iov_base = &l[i];
w[j].iov_len = sizeof(uint64_t);
j++;
w[j].iov_base = c + 1;
w[j].iov_len = iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1;
j++;
} else
/* Nothing special? Then just add the line and
* append a newline */
w[j++] = iov[i];
IOVEC_SET_STRING(w[j++], "\n");
}
if (!have_syslog_identifier &&
string_is_safe(program_invocation_short_name)) {
/* Implicitly add program_invocation_short_name, if it
* is not set explicitly. We only do this for
* program_invocation_short_name, and nothing else
* since everything else is much nicer to retrieve
* from the outside. */
IOVEC_SET_STRING(w[j++], "SYSLOG_IDENTIFIER=");
IOVEC_SET_STRING(w[j++], program_invocation_short_name);
IOVEC_SET_STRING(w[j++], "\n");
}
fd = journal_fd();
if (_unlikely_(fd < 0))
return fd;
mh.msg_iov = w;
mh.msg_iovlen = j;
k = sendmsg(fd, &mh, MSG_NOSIGNAL);
if (k >= 0)
return 0;
/* Fail silently if the journal is not available */
if (errno == ENOENT)
return 0;
if (errno != EMSGSIZE && errno != ENOBUFS)
return -errno;
/* Message doesn't fit... Let's dump the data in a memfd or
* temporary file and just pass a file descriptor of it to the
* other side.
*
* For the temporary files we use /dev/shm instead of /tmp
* here, since we want this to be a tmpfs, and one that is
* available from early boot on and where unprivileged users
* can create files. */
buffer_fd = memfd_new(NULL);
if (buffer_fd < 0) {
if (buffer_fd == -ENOSYS) {
buffer_fd = open_tmpfile_unlinkable("/dev/shm", O_RDWR | O_CLOEXEC);
if (buffer_fd < 0)
return buffer_fd;
seal = false;
} else
return buffer_fd;
}
n = writev(buffer_fd, w, j);
if (n < 0)
return -errno;
if (seal) {
r = memfd_set_sealed(buffer_fd);
if (r < 0)
return r;
}
r = send_one_fd_sa(fd, buffer_fd, mh.msg_name, mh.msg_namelen, 0);
if (r == -ENOENT)
/* Fail silently if the journal is not available */
return 0;
return r;
}
static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) {
PROTECT_ERRNO;
size_t n, k;
k = isempty(message) ? 0 : strlen(message) + 2;
n = 8 + k + 256 + 1;
for (;;) {
char buffer[n];
char* j;
errno = 0;
j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k);
if (errno == 0) {
char error[sizeof("ERRNO=")-1 + DECIMAL_STR_MAX(int) + 1];
if (j != buffer + 8 + k)
memmove(buffer + 8 + k, j, strlen(j)+1);
memcpy(buffer, "MESSAGE=", 8);
if (k > 0) {
memcpy(buffer + 8, message, k - 2);
memcpy(buffer + 8 + k - 2, ": ", 2);
}
xsprintf(error, "ERRNO=%i", _saved_errno_);
assert_cc(3 == LOG_ERR);
IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3");
IOVEC_SET_STRING(iov[skip+1], buffer);
IOVEC_SET_STRING(iov[skip+2], error);
return sd_journal_sendv(iov, skip + 3);
}
if (errno != ERANGE)
return -errno;
n *= 2;
}
}
_public_ int sd_journal_perror(const char *message) {
struct iovec iovec[3];
return fill_iovec_perror_and_send(message, 0, iovec);
}
_public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) {
static const union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
.un.sun_path = "/run/systemd/journal/stdout",
};
_cleanup_close_ int fd = -1;
char *header;
size_t l;
int r;
assert_return(priority >= 0, -EINVAL);
assert_return(priority <= 7, -EINVAL);
fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
if (fd < 0)
return -errno;
r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
if (r < 0)
return -errno;
if (shutdown(fd, SHUT_RD) < 0)
return -errno;
fd_inc_sndbuf(fd, SNDBUF_SIZE);
if (!identifier)
identifier = "";
l = strlen(identifier);
header = alloca(l + 1 + 1 + 2 + 2 + 2 + 2 + 2);
memcpy(header, identifier, l);
header[l++] = '\n';
header[l++] = '\n'; /* unit id */
header[l++] = '0' + priority;
header[l++] = '\n';
header[l++] = '0' + !!level_prefix;
header[l++] = '\n';
header[l++] = '0';
header[l++] = '\n';
header[l++] = '0';
header[l++] = '\n';
header[l++] = '0';
header[l++] = '\n';
r = loop_write(fd, header, l, false);
if (r < 0)
return r;
r = fd;
fd = -1;
return r;
}
_public_ int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) {
int r;
va_list ap;
va_start(ap, format);
r = sd_journal_printv_with_location(priority, file, line, func, format, ap);
va_end(ap);
return r;
}
_public_ int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) {
char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1];
struct iovec iov[5];
char *f;
assert_return(priority >= 0, -EINVAL);
assert_return(priority <= 7, -EINVAL);
assert_return(format, -EINVAL);
xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK);
memcpy(buffer, "MESSAGE=", 8);
vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap);
/* Strip trailing whitespace, keep prefixing whitespace */
(void) strstrip(buffer);
/* Suppress empty lines */
if (isempty(buffer+8))
return 0;
/* func is initialized from __func__ which is not a macro, but
* a static const char[], hence cannot easily be prefixed with
* CODE_FUNC=, hence let's do it manually here. */
ALLOCA_CODE_FUNC(f, func);
zero(iov);
IOVEC_SET_STRING(iov[0], buffer);
IOVEC_SET_STRING(iov[1], p);
IOVEC_SET_STRING(iov[2], file);
IOVEC_SET_STRING(iov[3], line);
IOVEC_SET_STRING(iov[4], f);
return sd_journal_sendv(iov, ELEMENTSOF(iov));
}
_public_ int sd_journal_sendv(const struct iovec *iov, int n) {
PROTECT_ERRNO;
int fd;
struct iovec *w;
uint64_t *l;
int i, j = 0;
struct sockaddr_un sa = {
.sun_family = AF_UNIX,
.sun_path = JOURNAL_RUNDIR "/socket",
};
struct msghdr mh = {
.msg_name = &sa,
.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(sa.sun_path),
};
ssize_t k;
union {
struct cmsghdr cmsghdr;
uint8_t buf[CMSG_SPACE(sizeof(int))];
} control;
bool have_syslog_identifier = false;
assert_return(iov, -EINVAL);
assert_return(n > 0, -EINVAL);
w = alloca(sizeof(struct iovec) * n * 5 + 3);
l = alloca(sizeof(uint64_t) * n);
for (i = 0; i < n; i++) {
char *c, *nl;
if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1))
return -EINVAL;
c = memchr(iov[i].iov_base, '=', iov[i].iov_len);
if (_unlikely_(!c || c == iov[i].iov_base))
return -EINVAL;
have_syslog_identifier = have_syslog_identifier ||
(c == (char *) iov[i].iov_base + 17 &&
startswith(iov[i].iov_base, "SYSLOG_IDENTIFIER"));
nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len);
if (nl) {
if (_unlikely_(nl < c))
return -EINVAL;
/* Already includes a newline? Bummer, then
* let's write the variable name, then a
* newline, then the size (64bit LE), followed
* by the data and a final newline */
w[j].iov_base = iov[i].iov_base;
w[j].iov_len = c - (char*) iov[i].iov_base;
j++;
IOVEC_SET_STRING(w[j++], "\n");
l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1);
w[j].iov_base = &l[i];
w[j].iov_len = sizeof(uint64_t);
j++;
w[j].iov_base = c + 1;
w[j].iov_len = iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1;
j++;
} else
/* Nothing special? Then just add the line and
* append a newline */
w[j++] = iov[i];
IOVEC_SET_STRING(w[j++], "\n");
}
if (!have_syslog_identifier) {
/* Implicitly add program_invocation_short_name, if it
* is not set explicitly. We only do this for
* program_invocation_short_name, and nothing else
* since everything else is much nicer to retrieve
* from the outside. */
IOVEC_SET_STRING(w[j++], "SYSLOG_IDENTIFIER=");
IOVEC_SET_STRING(w[j++], program_invocation_short_name);
IOVEC_SET_STRING(w[j++], "\n");
}
fd = journal_fd();
if (_unlikely_(fd < 0))
return fd;
mh.msg_iov = w;
mh.msg_iovlen = j;
k = sendmsg(fd, &mh, MSG_NOSIGNAL);
if (k >= 0)
return 0;
/* Fail silently if the journal is not available */
if (errno == ENOENT)
return 0;
if (errno != EMSGSIZE && errno != ENOBUFS)
return -errno;
return 0;
}
static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) {
PROTECT_ERRNO;
size_t n, k;
k = isempty(message) ? 0 : strlen(message) + 2;
n = 8 + k + 256 + 1;
for (;;) {
char buffer[n];
char* j;
errno = 0;
j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k);
if (errno == 0) {
char error[6 + 10 + 1]; /* for a 32bit value */
if (j != buffer + 8 + k)
memmove(buffer + 8 + k, j, strlen(j)+1);
memcpy(buffer, "MESSAGE=", 8);
if (k > 0) {
memcpy(buffer + 8, message, k - 2);
memcpy(buffer + 8 + k - 2, ": ", 2);
}
snprintf(error, sizeof(error), "ERRNO=%u", _saved_errno_);
char_array_0(error);
IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3");
IOVEC_SET_STRING(iov[skip+1], buffer);
IOVEC_SET_STRING(iov[skip+2], error);
return sd_journal_sendv(iov, skip + 3);
}
if (errno != ERANGE)
return -errno;
n *= 2;
}
}
_public_ int sd_journal_perror(const char *message) {
struct iovec iovec[3];
return fill_iovec_perror_and_send(message, 0, iovec);
}
int main(int argc, char **argv)
{
static const char *metric = NULL;
static const char *metric_description = NULL;
static const char *identifier = NULL;
static const char *priority_str = NULL;
static gboolean finished = FALSE;
static gboolean shutdown = FALSE;
int priority = LOG_INFO;
static GOptionEntry entries[] =
{
{ "identifier", 't', 0, G_OPTION_ARG_STRING, &identifier, "Source of the log message", "IDENTIFIER" },
{ "priority", 'p', 0, G_OPTION_ARG_STRING, &priority_str, "Priority (emerg|alert|crit|err|warning|notice|info|debug|0..7) - default info", "PRIORITY" },
{ "metric", 0, 0, G_OPTION_ARG_STRING, &metric, "Log a metric", "NAME=VALUE[UNITS]" },
{ "metric-description", 0, 0, G_OPTION_ARG_STRING, &metric_description, "Description of metric", "DESC" },
{ "finished", 0, 0, G_OPTION_ARG_NONE, &finished, "Indicate that a task has finished" },
{ "shutdown", 0, 0, G_OPTION_ARG_NONE, &shutdown, "Indicate that that the system is shutting down" },
};
GOptionContext *context;
GError *error = NULL;
GArray *send_iov;
int i;
context = g_option_context_new ("FIELD1=VALUE1 FIELD2=VALUE2...");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("option parsing failed: %s\n", error->message);
return 1;
}
send_offsets = g_array_new (FALSE, FALSE, sizeof (SendOffset));
buffer = g_string_new (NULL);
if (identifier != NULL)
add_fieldf("SYSLOG_IDENTIFIER=%s", identifier);
if (priority_str != NULL)
{
for (i = 0; priorities[i]; i++)
{
if (strcmp (priorities[i], priority_str) == 0)
{
priority = i;
break;
}
}
if (priorities[i] == NULL)
{
if (priority_str[0] >= '0' && priority_str[0] <= '7' && priority_str[1] == 0)
{
priority = priority_str[0] - '0';
}
else
{
g_printerr ("Unknown priority '%s'\n", priority_str);
return 1;
}
}
}
add_fieldf("PRIORITY=%d", priority);
if ((metric ? 1 : 0) +
(finished ? 1 : 0) +
(shutdown ? 1 : 0) > 1)
{
g_printerr ("Only one of --metric, --finished, and --shutdown can be specified\n");
return 1;
}
if (metric)
{
const char *equals;
char *metric_name;
char *metric_value;
const char *metric_units = NULL;
char *endptr;
double value G_GNUC_UNUSED;
equals = strchr (metric, '=');
if (equals == NULL)
{
g_printerr ("--metric argument should be of the form NAME=VALUE[UNITS]\n");
return 1;
}
metric_name = g_strndup (metric, equals - metric);
value = g_ascii_strtod (equals + 1, &endptr);
if (endptr == equals + 1)
{
g_printerr ("--metric argument should be of the form NAME=VALUE[UNITS]\n");
return 1;
}
metric_value = g_strndup (equals + 1, endptr - (equals + 1));
if (*endptr)
metric_units = endptr;
add_fieldf ("MESSAGE_ID=5eb90e0f00a247d68d95f630814de243");
add_fieldf ("METRIC_NAME=%s", metric_name);
add_fieldf ("METRIC_VALUE=%s", metric_value);
if (metric_units)
add_fieldf ("METRIC_UNITS=%s", metric_units);
}
if (metric_description)
{
if (!metric)
{
g_printerr("--metric-description requires --metric\n");
return 1;
}
add_fieldf("METRIC_DESCRIPTION=%s", metric);
}
if (metric_description)
add_fieldf("MESSAGE=%s (%s)", metric, metric_description);
else if (metric)
add_fieldf("MESSAGE=%s", metric);
if (finished)
{
add_fieldf ("MESSAGE_ID=26a5224162874504864dfa03bf255c8d");
add_fieldf ("MESSAGE=Finished");
}
if (shutdown)
{
add_fieldf ("MESSAGE_ID=545cc8baba1d4493916a334258c83be0");
add_fieldf ("MESSAGE=System shutdown");
}
for (i = 1; i < argc; i++)
{
const char *equals = strchr (argv[i], '=');
const char *p;
if (equals == NULL)
{
g_printerr ("argument '%s' should be of the form FIELD=VALUE\n", argv[i]);
return 1;
}
for (p = argv[i]; p != equals; p++)
{
if (!((*p >= 'A' && *p <= 'Z') ||
(*p >= '0' && *p <= '9') ||
(p != argv[i] && *p == '_')))
{
g_printerr ("Field name should consist of upper-case letters, digits, and underscores, and not start with an underscore\n");
return 1;
}
}
add_field (argv[i]);
}
send_iov = g_array_new (FALSE, FALSE, sizeof (struct iovec));
for (i = 0; i < send_offsets->len; i++)
{
SendOffset *offset = &g_array_index (send_offsets, SendOffset, i);
struct iovec iov;
iov.iov_base = buffer->str + offset->offset;
iov.iov_len = offset->len;
g_array_append_val (send_iov, iov);
}
sd_journal_sendv ((struct iovec *)send_iov->data, send_iov->len);
return 0;
}
