static int
_strcpy_cutoff(char *dest, const char *src, size_t cutoff, int ralign,
size_t buf_len)
{
size_t len = strlen(src);
if (buf_len <= 1) {
if (buf_len == 0)
dest[0] = 0;
return 0;
}
if (cutoff == 0) {
cutoff = len;
}
cutoff = QB_MIN(cutoff, buf_len - 1);
len = QB_MIN(len, cutoff);
if (ralign) {
memset(dest, ' ', cutoff - len);
memcpy(dest + cutoff - len, src, len);
} else {
memcpy(dest, src, len);
memset(dest + len, ' ', cutoff - len);
}
dest[cutoff] = '\0';
return cutoff;
}
static ssize_t
_request_q_len_get(struct qb_ipcs_connection *c)
{
ssize_t q_len;
if (c->service->funcs.q_len_get) {
q_len = c->service->funcs.q_len_get(&c->request);
if (q_len <= 0) {
return q_len;
}
if (c->service->poll_priority == QB_LOOP_MED) {
q_len = QB_MIN(q_len, 5);
} else if (c->service->poll_priority == QB_LOOP_LOW) {
q_len = 1;
} else {
q_len = QB_MIN(q_len, MAX_RECV_MSGS);
}
} else {
q_len = 1;
}
return q_len;
}
static st_query_result_t *
stonith_choose_peer(remote_fencing_op_t * op)
{
const char *device = NULL;
st_query_result_t *peer = NULL;
uint32_t active = fencing_active_peers();
do {
if (op->devices) {
device = op->devices->data;
crm_trace("Checking for someone to fence %s with %s", op->target, device);
} else {
crm_trace("Checking for someone to fence %s", op->target);
}
peer = find_best_peer(device, op, FIND_PEER_SKIP_TARGET|FIND_PEER_VERIFIED_ONLY);
if (peer) {
crm_trace("Found verified peer %s for %s", peer->host, device?device:"<any>");
return peer;
}
if(op->query_timer != 0 && op->replies < QB_MIN(op->replies_expected, active)) {
crm_trace("Waiting before looking for unverified devices to fence %s", op->target);
return NULL;
}
peer = find_best_peer(device, op, FIND_PEER_SKIP_TARGET);
if (peer) {
crm_trace("Found best unverified peer %s", peer->host);
return peer;
}
peer = find_best_peer(device, op, FIND_PEER_TARGET_ONLY);
if(peer) {
crm_trace("%s will fence itself", peer->host);
return peer;
}
/* Try the next fencing level if there is one */
} while (is_set(op->call_options, st_opt_topology)
&& stonith_topology_next(op) == pcmk_ok);
crm_notice("Couldn't find anyone to fence %s with %s", op->target, device?device:"<any>");
return NULL;
}
int32_t
main(int32_t argc, char *argv[])
{
const char *options = "vhteobdf:";
int32_t opt;
int32_t tracer;
int32_t do_stderr = QB_FALSE;
int32_t do_stdout = QB_FALSE;
int32_t do_dump_blackbox = QB_FALSE;
char *logfile = NULL;
int32_t log_fd = -1;
while ((opt = getopt(argc, argv, options)) != -1) {
switch (opt) {
case 'd':
do_dump_blackbox = QB_TRUE;
break;
case 't':
do_threaded = QB_TRUE;
break;
case 'e':
do_stderr = QB_TRUE;
break;
case 'o':
do_stdout = QB_TRUE;
break;
case 'b':
do_blackbox = QB_TRUE;
break;
case 'f':
logfile = optarg;
break;
case 'v':
_log_priority++;
break;
case 'h':
default:
show_usage(argv[0]);
exit(0);
break;
}
}
if (do_dump_blackbox) {
qb_log_blackbox_print_from_file("simple-log.fdata");
exit(0);
}
signal(SIGSEGV, sigsegv_handler);
qb_log_init("simple-log", LOG_USER, LOG_INFO);
qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_THREADED, do_threaded);
qb_log_tags_stringify_fn_set(my_tags_stringify);
if (do_stderr) {
qb_log_filter_fn_set(m_filter);
qb_log_format_set(QB_LOG_STDERR, "[%p] %4g: %f:%l %b");
qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_TRUE);
tracer = qb_log_custom_open(trace_logger, NULL, NULL, NULL);
qb_log_ctl(tracer, QB_LOG_CONF_ENABLED, QB_TRUE);
qb_log_format_set(tracer, "%4g: %n() %b");
qb_log_filter_ctl2(tracer, QB_LOG_FILTER_ADD,
QB_LOG_FILTER_FILE, __FILE__,
LOG_TRACE, 200);
}
if (do_stdout) {
qb_log_filter_ctl2(QB_LOG_STDOUT, QB_LOG_FILTER_ADD,
QB_LOG_FILTER_FILE, __FILE__,
LOG_ALERT, QB_MIN(LOG_DEBUG, _log_priority));
qb_log_format_set(QB_LOG_STDOUT, "[%p] %4g: %f:%l %b");
qb_log_ctl(QB_LOG_STDOUT, QB_LOG_CONF_ENABLED, QB_TRUE);
}
if (do_blackbox) {
qb_log_filter_ctl(QB_LOG_BLACKBOX, QB_LOG_FILTER_ADD,
QB_LOG_FILTER_FILE, "*", LOG_DEBUG);
qb_log_ctl(QB_LOG_BLACKBOX, QB_LOG_CONF_SIZE, 4096);
qb_log_ctl(QB_LOG_BLACKBOX, QB_LOG_CONF_THREADED, QB_FALSE);
qb_log_ctl(QB_LOG_BLACKBOX, QB_LOG_CONF_ENABLED, QB_TRUE);
}
if (logfile) {
log_fd = qb_log_file_open(logfile);
qb_log_filter_ctl(log_fd, QB_LOG_FILTER_ADD,
QB_LOG_FILTER_FILE, __FILE__, _log_priority);
qb_log_format_set(log_fd, "[%N] %t %n() [%p] %b");
qb_log_ctl(log_fd, QB_LOG_CONF_THREADED, do_threaded);
qb_log_ctl(log_fd, QB_LOG_CONF_ENABLED, QB_TRUE);
}
if (do_threaded) {
qb_log_thread_start();
}
qb_log(LOG_DEBUG, "hello");
qb_log(LOG_INFO, "this is an info");
qb_log(LOG_NOTICE, "hello - notice?");
func_one();
func_two();
qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_FALSE);
qb_log(LOG_WARNING, "no syslog");
qb_log(LOG_ERR, "no syslog");
#if 0
// test blackbox
logfile = NULL;
logfile[5] = 'a';
#endif
if (do_blackbox) {
qb_log_blackbox_write_to_file("simple-log.fdata");
qb_log_blackbox_print_from_file("simple-log.fdata");
qb_log_ctl(QB_LOG_BLACKBOX, QB_LOG_CONF_ENABLED, QB_FALSE);
}
qb_log_fini();
return 0;
}
gboolean
cluster_connect_cpg(crm_cluster_t *cluster)
{
int rc = -1;
int fd = 0;
int retries = 0;
uint32_t id = 0;
crm_node_t *peer = NULL;
cpg_handle_t handle = 0;
struct mainloop_fd_callbacks cpg_fd_callbacks = {
.dispatch = pcmk_cpg_dispatch,
.destroy = cluster->destroy,
};
cpg_callbacks_t cpg_callbacks = {
.cpg_deliver_fn = cluster->cpg.cpg_deliver_fn,
.cpg_confchg_fn = cluster->cpg.cpg_confchg_fn,
/* .cpg_deliver_fn = pcmk_cpg_deliver, */
/* .cpg_confchg_fn = pcmk_cpg_membership, */
};
cpg_evicted = FALSE;
cluster->group.length = 0;
cluster->group.value[0] = 0;
/* group.value is char[128] */
strncpy(cluster->group.value, crm_system_name?crm_system_name:"unknown", 127);
cluster->group.value[127] = 0;
cluster->group.length = 1 + QB_MIN(127, strlen(cluster->group.value));
cs_repeat(retries, 30, rc = cpg_initialize(&handle, &cpg_callbacks));
if (rc != CS_OK) {
crm_err("Could not connect to the Cluster Process Group API: %d", rc);
goto bail;
}
id = get_local_nodeid(handle);
if (id == 0) {
crm_err("Could not get local node id from the CPG API");
goto bail;
}
cluster->nodeid = id;
retries = 0;
cs_repeat(retries, 30, rc = cpg_join(handle, &cluster->group));
if (rc != CS_OK) {
crm_err("Could not join the CPG group '%s': %d", crm_system_name, rc);
goto bail;
}
rc = cpg_fd_get(handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CPG API connection: %d", rc);
goto bail;
}
pcmk_cpg_handle = handle;
cluster->cpg_handle = handle;
mainloop_add_fd("corosync-cpg", G_PRIORITY_MEDIUM, fd, cluster, &cpg_fd_callbacks);
bail:
if (rc != CS_OK) {
cpg_finalize(handle);
return FALSE;
}
peer = crm_get_peer(id, NULL);
crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cpg, ONLINESTATUS);
return TRUE;
}
gboolean
send_cluster_message_cs(xmlNode * msg, gboolean local, crm_node_t * node, enum crm_ais_msg_types dest)
{
gboolean rc = TRUE;
char *data = NULL;
data = dump_xml_unformatted(msg);
rc = send_cluster_text(crm_class_cluster, data, local, node, dest);
free(data);
return rc;
}
gboolean
send_cluster_text(int class, const char *data,
gboolean local, crm_node_t * node, enum crm_ais_msg_types dest)
{
static int msg_id = 0;
static int local_pid = 0;
static int local_name_len = 0;
static const char *local_name = NULL;
char *target = NULL;
struct iovec *iov;
AIS_Message *msg = NULL;
enum crm_ais_msg_types sender = text2msg_type(crm_system_name);
/* There are only 6 handlers registered to crm_lib_service in plugin.c */
CRM_CHECK(class < 6, crm_err("Invalid message class: %d", class);
return FALSE);
#if !SUPPORT_PLUGIN
CRM_CHECK(dest != crm_msg_ais, return FALSE);
#endif
if(local_name == NULL) {
local_name = get_local_node_name();
}
if(local_name_len == 0 && local_name) {
local_name_len = strlen(local_name);
}
if (data == NULL) {
data = "";
}
if (local_pid == 0) {
local_pid = getpid();
}
if (sender == crm_msg_none) {
sender = local_pid;
}
msg = calloc(1, sizeof(AIS_Message));
msg_id++;
msg->id = msg_id;
msg->header.id = class;
msg->header.error = CS_OK;
msg->host.type = dest;
msg->host.local = local;
if (node) {
if (node->uname) {
target = strdup(node->uname);
msg->host.size = strlen(node->uname);
memset(msg->host.uname, 0, MAX_NAME);
memcpy(msg->host.uname, node->uname, msg->host.size);
} else {
target = crm_strdup_printf("%u", node->id);
}
msg->host.id = node->id;
} else {
target = strdup("all");
}
msg->sender.id = 0;
msg->sender.type = sender;
msg->sender.pid = local_pid;
msg->sender.size = local_name_len;
memset(msg->sender.uname, 0, MAX_NAME);
if(local_name && msg->sender.size) {
memcpy(msg->sender.uname, local_name, msg->sender.size);
}
msg->size = 1 + strlen(data);
msg->header.size = sizeof(AIS_Message) + msg->size;
if (msg->size < CRM_BZ2_THRESHOLD) {
msg = realloc_safe(msg, msg->header.size);
memcpy(msg->data, data, msg->size);
} else {
char *compressed = NULL;
unsigned int new_size = 0;
char *uncompressed = strdup(data);
if (crm_compress_string(uncompressed, msg->size, 0, &compressed, &new_size)) {
msg->header.size = sizeof(AIS_Message) + new_size;
msg = realloc_safe(msg, msg->header.size);
memcpy(msg->data, compressed, new_size);
msg->is_compressed = TRUE;
msg->compressed_size = new_size;
} else {
msg = realloc_safe(msg, msg->header.size);
memcpy(msg->data, data, msg->size);
}
free(uncompressed);
free(compressed);
}
iov = calloc(1, sizeof(struct iovec));
iov->iov_base = msg;
iov->iov_len = msg->header.size;
if (msg->compressed_size) {
crm_trace("Queueing CPG message %u to %s (%llu bytes, %d bytes compressed payload): %.200s",
msg->id, target, (unsigned long long) iov->iov_len,
msg->compressed_size, data);
} else {
crm_trace("Queueing CPG message %u to %s (%llu bytes, %d bytes payload): %.200s",
msg->id, target, (unsigned long long) iov->iov_len,
msg->size, data);
}
free(target);
#if SUPPORT_PLUGIN
/* The plugin is the only time we dont use CPG messaging */
if(get_cluster_type() == pcmk_cluster_classic_ais) {
return send_plugin_text(class, iov);
}
#endif
send_cpg_iov(iov);
return TRUE;
}
enum crm_ais_msg_types
text2msg_type(const char *text)
{
int type = crm_msg_none;
CRM_CHECK(text != NULL, return type);
if (safe_str_eq(text, "ais")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, "crm_plugin")) {
type = crm_msg_ais;
} else if (safe_str_eq(text, CRM_SYSTEM_CIB)) {
type = crm_msg_cib;
} else if (safe_str_eq(text, CRM_SYSTEM_CRMD)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_DC)) {
type = crm_msg_crmd;
} else if (safe_str_eq(text, CRM_SYSTEM_TENGINE)) {
type = crm_msg_te;
} else if (safe_str_eq(text, CRM_SYSTEM_PENGINE)) {
type = crm_msg_pe;
} else if (safe_str_eq(text, CRM_SYSTEM_LRMD)) {
type = crm_msg_lrmd;
} else if (safe_str_eq(text, CRM_SYSTEM_STONITHD)) {
type = crm_msg_stonithd;
} else if (safe_str_eq(text, "stonith-ng")) {
type = crm_msg_stonith_ng;
} else if (safe_str_eq(text, "attrd")) {
type = crm_msg_attrd;
} else {
/* This will normally be a transient client rather than
* a cluster daemon. Set the type to the pid of the client
*/
int scan_rc = sscanf(text, "%d", &type);
if (scan_rc != 1 || type <= crm_msg_stonith_ng) {
/* Ensure it's sane */
type = crm_msg_none;
}
}
return type;
}
static ssize_t
crm_cs_flush(gpointer data)
{
int sent = 0;
ssize_t rc = 0;
int queue_len = 0;
static unsigned int last_sent = 0;
cpg_handle_t *handle = (cpg_handle_t *)data;
if (*handle == 0) {
crm_trace("Connection is dead");
return pcmk_ok;
}
queue_len = g_list_length(cs_message_queue);
if ((queue_len % 1000) == 0 && queue_len > 1) {
crm_err("CPG queue has grown to %d", queue_len);
} else if (queue_len == CS_SEND_MAX) {
crm_warn("CPG queue has grown to %d", queue_len);
}
if (cs_message_timer) {
/* There is already a timer, wait until it goes off */
crm_trace("Timer active %d", cs_message_timer);
return pcmk_ok;
}
while (cs_message_queue && sent < CS_SEND_MAX) {
struct iovec *iov = cs_message_queue->data;
errno = 0;
rc = cpg_mcast_joined(*handle, CPG_TYPE_AGREED, iov, 1);
if (rc != CS_OK) {
break;
}
sent++;
last_sent++;
crm_trace("CPG message sent, size=%llu",
(unsigned long long) iov->iov_len);
cs_message_queue = g_list_remove(cs_message_queue, iov);
free(iov->iov_base);
free(iov);
}
queue_len -= sent;
if (sent > 1 || cs_message_queue) {
crm_info("Sent %d CPG messages (%d remaining, last=%u): %s (%lld)",
sent, queue_len, last_sent, ais_error2text(rc),
(long long) rc);
} else {
crm_trace("Sent %d CPG messages (%d remaining, last=%u): %s (%lld)",
sent, queue_len, last_sent, ais_error2text(rc),
(long long) rc);
}
if (cs_message_queue) {
uint32_t delay_ms = 100;
if(rc != CS_OK) {
/* Proportionally more if sending failed but cap at 1s */
delay_ms = QB_MIN(1000, CS_SEND_MAX + (10 * queue_len));
}
cs_message_timer = g_timeout_add(delay_ms, crm_cs_flush_cb, data);
}
return rc;
}
int32_t
qb_sys_mmap_file_open(char *path, const char *file, size_t bytes,
uint32_t file_flags)
{
int32_t fd;
int32_t i;
int32_t res = 0;
ssize_t written;
char *buffer = NULL;
char *is_absolute = strchr(file, '/');
if (is_absolute) {
(void)strlcpy(path, file, PATH_MAX);
} else {
#if defined(QB_LINUX) || defined(QB_CYGWIN)
snprintf(path, PATH_MAX, "/dev/shm/%s", file);
#else
snprintf(path, PATH_MAX, LOCALSTATEDIR "/run/%s", file);
is_absolute = path;
#endif
}
fd = open_mmap_file(path, file_flags);
if (fd < 0 && !is_absolute) {
qb_util_perror(LOG_ERR, "couldn't open file %s", path);
snprintf(path, PATH_MAX, LOCALSTATEDIR "/run/%s", file);
fd = open_mmap_file(path, file_flags);
if (fd < 0) {
res = -errno;
qb_util_perror(LOG_ERR, "couldn't open file %s", path);
return res;
}
} else if (fd < 0 && is_absolute) {
res = -errno;
qb_util_perror(LOG_ERR, "couldn't open file %s", path);
return res;
}
if (ftruncate(fd, bytes) == -1) {
res = -errno;
qb_util_perror(LOG_ERR, "couldn't truncate file %s", path);
goto unlink_exit;
}
if (file_flags & O_CREAT) {
long page_size = sysconf(_SC_PAGESIZE);
long write_size = QB_MIN(page_size, bytes);
if (page_size < 0) {
res = -errno;
goto unlink_exit;
}
buffer = calloc(1, write_size);
if (buffer == NULL) {
res = -ENOMEM;
goto unlink_exit;
}
for (i = 0; i < (bytes / write_size); i++) {
retry_write:
written = write(fd, buffer, write_size);
if (written == -1 && errno == EINTR) {
goto retry_write;
}
if (written != write_size) {
res = -ENOSPC;
free(buffer);
goto unlink_exit;
}
}
free(buffer);
}
return fd;
unlink_exit:
unlink(path);
if (fd > 0) {
close(fd);
}
return res;
}
int32_t
qb_ipcs_dispatch_connection_request(int32_t fd, int32_t revents, void *data)
{
struct qb_ipcs_connection *c = (struct qb_ipcs_connection *)data;
char bytes[MAX_RECV_MSGS];
int32_t res;
int32_t res2;
int32_t recvd = 0;
ssize_t avail;
if (revents & POLLNVAL) {
qb_util_log(LOG_DEBUG, "NVAL conn:%p fd:%d", c, fd);
return -EINVAL;
}
if (revents & POLLHUP) {
qb_util_log(LOG_DEBUG, "HUP conn:%p fd:%d", c, fd);
qb_ipcs_disconnect(c);
return -ESHUTDOWN;
}
if (revents & POLLOUT) {
res = resend_event_notifications(c);
if (res < 0 && res != -EAGAIN) {
errno = -res;
qb_util_perror(LOG_WARNING, "resend_event_notifications");
}
if ((revents & POLLIN) == 0) {
return 0;
}
}
if (c->fc_enabled) {
return 0;
}
avail = _request_q_len_get(c);
if (c->service->needs_sock_for_poll && avail == 0) {
res2 = qb_ipc_us_recv(&c->setup, bytes, 1, 0);
qb_util_log(LOG_WARNING,
"conn:%p Nothing in q but got POLLIN on fd:%d (res2:%d)",
c, fd, res2);
return 0;
}
do {
res = _process_request_(c, IPC_REQUEST_TIMEOUT);
if (res > 0 || res == -ENOBUFS || res == -EINVAL) {
recvd++;
}
if (res > 0) {
avail--;
}
} while (avail > 0 && res > 0 && !c->fc_enabled);
if (c->service->needs_sock_for_poll && recvd > 0) {
res2 = qb_ipc_us_recv(&c->setup, bytes, recvd, -1);
if (res2 < 0) {
errno = -res2;
qb_util_perror(LOG_ERR, "error receiving from setup sock");
}
}
res = QB_MIN(0, res);
if (res == -EAGAIN || res == -ETIMEDOUT || res == -ENOBUFS) {
res = 0;
}
if (res != 0) {
errno = -res;
qb_util_perror(LOG_ERR, "request returned error");
qb_ipcs_connection_unref(c);
}
return res;
}
size_t
qb_vsnprintf_serialize(char *serialize, size_t max_len,
const char *fmt, va_list ap)
{
char *format;
char *p;
int type_long = 0;
int type_longlong = 0;
int sformat_length = 0;
int sformat_precision = 0;
uint32_t location = strlcpy(serialize, fmt, max_len) + 1;
format = (char *)fmt;
for (;;) {
type_long = 0;
type_longlong = 0;
p = strchrnul((const char *)format, '%');
if (*p == '\0') {
break;
}
format = p + 1;
reprocess:
switch (format[0]) {
case '#': /* alternate form conversion, ignore */
case '-': /* left adjust, ignore */
case ' ': /* a space, ignore */
case '+': /* a sign should be used, ignore */
case '\'': /* group in thousands, ignore */
case 'I': /* glibc-ism locale alternative, ignore */
format++;
goto reprocess;
case '.': /* precision, ignore */
format++;
sformat_precision = 1;
goto reprocess;
case '0': /* field width, ignore */
case '1': /* field width, ignore */
case '2': /* field width, ignore */
case '3': /* field width, ignore */
case '4': /* field width, ignore */
case '5': /* field width, ignore */
case '6': /* field width, ignore */
case '7': /* field width, ignore */
case '8': /* field width, ignore */
case '9': /* field width, ignore */
if(sformat_precision) {
sformat_length *= 10;
sformat_length += (format[0] - '0');
}
format++;
goto reprocess;
case '*': /* variable field width, save */ {
int arg_int = va_arg(ap, int);
if (location + sizeof (int) > max_len) {
return max_len;
}
memcpy(&serialize[location], &arg_int, sizeof (int));
location += sizeof(int);
format++;
goto reprocess;
}
case 'l':
format++;
type_long = 1;
if (*format == 'l') {
type_long = 0;
type_longlong = 1;
format++;
}
goto reprocess;
case 'd': /* int argument */
case 'i': /* int argument */
case 'o': /* unsigned int argument */
case 'u':
case 'x':
case 'X':
if (type_long) {
long int arg_int;
if (location + sizeof (long int) > max_len) {
return max_len;
}
arg_int = va_arg(ap, long int);
memcpy(&serialize[location], &arg_int,
sizeof(long int));
location += sizeof(long int);
format++;
break;
} else if (type_longlong) {
long long int arg_int;
if (location + sizeof (long long int) > max_len) {
return max_len;
}
arg_int = va_arg(ap, long long int);
memcpy(&serialize[location], &arg_int,
sizeof(long long int));
location += sizeof(long long int);
format++;
break;
} else {
int arg_int;
if (location + sizeof (int) > max_len) {
return max_len;
}
arg_int = va_arg(ap, int);
memcpy(&serialize[location], &arg_int,
sizeof(int));
location += sizeof(int);
format++;
break;
}
case 'e':
case 'E':
case 'f':
case 'F':
case 'g':
case 'G':
case 'a':
case 'A':
{
double arg_double;
if (location + sizeof (double) > max_len) {
return max_len;
}
arg_double = va_arg(ap, double);
memcpy (&serialize[location], &arg_double, sizeof (double));
location += sizeof(double);
format++;
break;
}
case 'c':
{
int arg_int;
unsigned char arg_char;
if (location + sizeof (unsigned int) > max_len) {
return max_len;
}
arg_int = va_arg(ap, unsigned int);
arg_char = (unsigned char)arg_int;
memcpy (&serialize[location], &arg_char, sizeof (unsigned char));
location += sizeof(unsigned char);
break;
}
case 's':
{
char *arg_string;
arg_string = va_arg(ap, char *);
if (arg_string == NULL) {
location += strlcpy(&serialize[location],
"(null)",
QB_MIN(strlen("(null)") + 1,
max_len - location));
} else if (sformat_length) {
location += strlcpy(&serialize[location],
arg_string,
QB_MIN(sformat_length + 1,
(max_len - location)));
} else {
location += strlcpy(&serialize[location],
arg_string,
QB_MIN(strlen(arg_string) + 1,
max_len - location));
}
location++;
break;
}
case 'p':
{
ptrdiff_t arg_pointer = va_arg(ap, ptrdiff_t);
if (location + sizeof (ptrdiff_t) > max_len) {
return max_len;
}
memcpy(&serialize[location], &arg_pointer, sizeof(ptrdiff_t));
location += sizeof(ptrdiff_t);
break;
}
case '%':
if (location + 1 > max_len) {
return max_len;
}
serialize[location++] = '%';
sformat_length = 0;
sformat_precision = 0;
break;
}