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out_syslog: when using a message key, avoid prefixing raw messages #6896

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merged 1 commit into from
Oct 5, 2023
Merged

out_syslog: when using a message key, avoid prefixing raw messages #6896

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33 changes: 28 additions & 5 deletions plugins/out_syslog/syslog.c
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Original file line number Diff line number Diff line change
Expand Up @@ -143,10 +143,21 @@ static char rfc5424_sp_name[256] = {
static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
struct syslog_msg *msg)
{
int len;
struct tm tm;
flb_sds_t tmp;
uint8_t prival;

if (msg->message && msg->message[0] == '<') {
len = flb_sds_len(msg->message);
tmp = flb_sds_cat(*s, msg->message, len);
if (!tmp) {
return NULL;
}
*s = tmp;
return *s;
}

prival = (msg->facility << 3) + msg->severity;

if (gmtime_r(&(tms->tm.tv_sec), &tm) == NULL) {
Expand All @@ -163,7 +174,7 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
*s = tmp;

if (msg->hostname) {
int len = flb_sds_len(msg->hostname);
len = flb_sds_len(msg->hostname);
tmp = flb_sds_cat(*s, msg->hostname, len > 255 ? 255 : len);
if (!tmp) {
return NULL;
Expand All @@ -185,7 +196,7 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
*s = tmp;

if (msg->appname) {
int len = flb_sds_len(msg->appname);
len = flb_sds_len(msg->appname);
tmp = flb_sds_cat(*s, msg->appname, len > 48 ? 48 : len);
if (!tmp) {
return NULL;
Expand All @@ -207,7 +218,7 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
*s = tmp;

if (msg->procid) {
int len = flb_sds_len(msg->procid);
len = flb_sds_len(msg->procid);
tmp = flb_sds_cat(*s, msg->procid, len > 128 ? 128 : len);
if (!tmp) {
return NULL;
Expand All @@ -229,7 +240,7 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
*s = tmp;

if (msg->msgid) {
int len = flb_sds_len(msg->msgid);
len = flb_sds_len(msg->msgid);
tmp = flb_sds_cat(*s, msg->msgid, len > 32 ? 32 : len);
if (!tmp) {
return NULL;
Expand Down Expand Up @@ -266,7 +277,7 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
}

if (msg->message) {
int len = flb_sds_len(msg->message);
len = flb_sds_len(msg->message);
tmp = flb_sds_cat(*s, " \xef\xbb\xbf", 4);
if (!tmp) {
return NULL;
Expand All @@ -285,10 +296,21 @@ static flb_sds_t syslog_rfc5424(flb_sds_t *s, struct flb_time *tms,
static flb_sds_t syslog_rfc3164 (flb_sds_t *s, struct flb_time *tms,
struct syslog_msg *msg)
{
int len;
struct tm tm;
flb_sds_t tmp;
uint8_t prival;

if (msg->message && msg->message[0] == '<') {
len = flb_sds_len(msg->message);
tmp = flb_sds_cat(*s, msg->message, len);
if (!tmp) {
return NULL;
}
*s = tmp;
return *s;
}

prival = (msg->facility << 3) + msg->severity;

if (gmtime_r(&(tms->tm.tv_sec), &tm) == NULL) {
Expand Down Expand Up @@ -777,6 +799,7 @@ static void cb_syslog_flush(struct flb_event_chunk *event_chunk,

if (ctx->parsed_mode != FLB_SYSLOG_UDP) {
u_conn = flb_upstream_conn_get(ctx->u);

if (!u_conn) {
flb_plg_error(ctx->ins, "no upstream connections available");
FLB_OUTPUT_RETURN(FLB_RETRY);
Expand Down
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