1 files changed, 122 insertions, 0 deletions
diff --git a/libparc/parc/logging/parc_LogFormatSyslog.c b/libparc/parc/logging/parc_LogFormatSyslog.c
new file mode 100755
index 00000000..2b3e7e9c
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+++ b/libparc/parc/logging/parc_LogFormatSyslog.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ */
+#include <config.h>
+
+#include <inttypes.h>
+
+#include <parc/logging/parc_LogFormatSyslog.h>
+#include <parc/algol/parc_BufferComposer.h>
+#include <parc/algol/parc_Time.h>
+
+/*
+ * RFC 5424
+ *
+ * SYSLOG-MSG      = HEADER SP STRUCTURED-DATA [SP MSG]
+ *
+ * HEADER          = PRI VERSION SP TIMESTAMP SP HOSTNAME SP APP-NAME SP PROCID SP MSGID
+ * PRI             = "<" PRIVAL ">"
+ * PRIVAL          = 1*3DIGIT ; range 0 .. 191
+ * VERSION         = NONZERO-DIGIT 0*2DIGIT
+ * HOSTNAME        = NILVALUE / 1*255PRINTUSASCII
+ *
+ * APP-NAME        = NILVALUE / 1*48PRINTUSASCII
+ * PROCID          = NILVALUE / 1*128PRINTUSASCII
+ * MSGID           = NILVALUE / 1*32PRINTUSASCII
+ *
+ * TIMESTAMP       = NILVALUE / FULL-DATE "T" FULL-TIME
+ * FULL-DATE       = DATE-FULLYEAR "-" DATE-MONTH "-" DATE-MDAY
+ * DATE-FULLYEAR   = 4DIGIT
+ * DATE-MONTH      = 2DIGIT  ; 01-12
+ * DATE-MDAY       = 2DIGIT  ; 01-28, 01-29, 01-30, 01-31 based on month/year
+ * FULL-TIME       = PARTIAL-TIME TIME-OFFSET
+ * PARTIAL-TIME    = TIME-HOUR ":" TIME-MINUTE ":" TIME-SECOND
+ * [TIME-SECFRAC]
+ * TIME-HOUR       = 2DIGIT  ; 00-23
+ * TIME-MINUTE     = 2DIGIT  ; 00-59
+ * TIME-SECOND     = 2DIGIT  ; 00-59
+ * TIME-SECFRAC    = "." 1*6DIGIT
+ * TIME-OFFSET     = "Z" / TIME-NUMOFFSET
+ * TIME-NUMOFFSET  = ("+" / "-") TIME-HOUR ":" TIME-MINUTE
+ *
+ *
+ * STRUCTURED-DATA = NILVALUE / 1*SD-ELEMENT
+ * SD-ELEMENT      = "[" SD-ID *(SP SD-PARAM) "]"
+ * SD-PARAM        = PARAM-NAME "=" %d34 PARAM-VALUE %d34
+ * SD-ID           = SD-NAME
+ * PARAM-NAME      = SD-NAME
+ * PARAM-VALUE     = UTF-8-STRING ; characters '"', '\' and ']' MUST be escaped.
+ * SD-NAME         = 1*32PRINTUSASCII ; except '=', SP, ']', %d34 (")
+ *
+ * MSG             = MSG-ANY / MSG-UTF8
+ * MSG-ANY         = *OCTET ; not starting with BOM
+ * MSG-UTF8        = BOM UTF-8-STRING
+ * BOM             = %xEF.BB.BF
+ *
+ *
+ * UTF-8-STRING    = *OCTET ; UTF-8 string as specified in RFC 3629
+ *
+ * OCTET           = %d00-255
+ * SP              = %d32
+ * PRINTUSASCII    = %d33-126
+ * NONZERO-DIGIT   = %d49-57
+ * DIGIT           = %d48 / NONZERO-DIGIT
+ * NILVALUE        = "-"
+ */
+/**
+ * Create a PARCBuffer containing the PARCLogEntry formatted according to RFC 5424 section 6.
+ *
+ * The returned PARCBuffer's position is set to the start of the formatted data and continues to the limit.
+ *
+ * @param [in] entry A pointer to a valid instance of PARCLogEntry.
+ *
+ * @return non-NULL A pointer to a PARCBuffer containing the formatted PARCLogEntry.
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ *
+ * @see parcLogEntry_ToString
+ */
+PARCBuffer *
+parcLogFormatSyslog_FormatEntry(const PARCLogEntry *entry)
+{
+    PARCBuffer *payload = parcLogEntry_GetPayload(entry);
+
+    char theTime[64];
+    parcTime_TimevalAsRFC3339(parcLogEntry_GetTimeStamp(entry), theTime);
+
+    PARCBufferComposer *composer = parcBufferComposer_Allocate(128);
+
+    parcBufferComposer_Format(composer, "<%s> %d ",
+                              parcLogLevel_ToString(parcLogEntry_GetLevel(entry)), parcLogEntry_GetVersion(entry));
+    parcBufferComposer_PutStrings(composer,
+                                  theTime, " ",
+                                  parcLogEntry_GetHostName(entry), " ",
+                                  parcLogEntry_GetApplicationName(entry), " ",
+                                  parcLogEntry_GetProcessName(entry), " ", NULL);
+
+    parcBufferComposer_Format(composer, "%" PRId64 " [ ", parcLogEntry_GetMessageId(entry));
+    parcBufferComposer_PutBuffer(composer, payload);
+    parcBufferComposer_PutStrings(composer, " ]\n", NULL);
+    PARCBuffer *result = parcBuffer_Flip(parcBuffer_Acquire(parcBufferComposer_GetBuffer(composer)));
+
+    parcBufferComposer_Release(&composer);
+
+    return result;
+}