From 5772deabec9e89d612e317ac0271cd5c1148e8e4 Mon Sep 17 00:00:00 2001
From: Jose Santiago <jsantiago@haivision.com>
Date: Tue, 10 Apr 2018 15:18:09 -0500
Subject: [PATCH] Use the correct printf format macros for WIN32/MINGW for
 size_t.

---
 srtcore/core.cpp     |  8 ++++----
 srtcore/srt_compat.h | 24 +++++++++++++++++++++++-
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/srtcore/core.cpp b/srtcore/core.cpp
index ee864955a..07166c33d 100644
--- a/srtcore/core.cpp
+++ b/srtcore/core.cpp
@@ -1911,11 +1911,11 @@ int CUDT::processSrtMsg_HSREQ(const uint32_t* srtdata, size_t len, uint32_t ts,
     if (len < SRT_CMD_HSREQ_MINSZ)
     {
         /* Packet smaller than minimum compatible packet size */
-        LOGF(mglog.Error,  "HSREQ/rcv: cmd=%d(HSREQ) len=%zu invalid", SRT_CMD_HSREQ, len);
+        LOGF(mglog.Error,  "HSREQ/rcv: cmd=%d(HSREQ) len=%" PRIzu " invalid", SRT_CMD_HSREQ, len);
         return SRT_CMD_NONE;
     }
 
-    LOGF(mglog.Note,  "HSREQ/rcv: cmd=%d(HSREQ) len=%zu vers=0x%x opts=0x%x delay=%d", 
+    LOGF(mglog.Note,  "HSREQ/rcv: cmd=%d(HSREQ) len=%" PRIzu " vers=0x%x opts=0x%x delay=%d", 
             SRT_CMD_HSREQ, len, srtdata[SRT_HS_VERSION], srtdata[SRT_HS_FLAGS],
             SRT_HS_LATENCY_RCV::unwrap(srtdata[SRT_HS_LATENCY]));
 
@@ -2089,7 +2089,7 @@ int CUDT::processSrtMsg_HSRSP(const uint32_t* srtdata, size_t len, uint32_t ts,
     if (len < SRT_CMD_HSRSP_MINSZ)
     {
         /* Packet smaller than minimum compatible packet size */
-        LOGF(mglog.Error,  "HSRSP/rcv: cmd=%d(HSRSP) len=%zu invalid", SRT_CMD_HSRSP, len);
+        LOGF(mglog.Error,  "HSRSP/rcv: cmd=%d(HSRSP) len=%" PRIzu " invalid", SRT_CMD_HSRSP, len);
         return SRT_CMD_NONE;
     }
 
@@ -7410,7 +7410,7 @@ int CUDT::processData(CUnit* unit)
            }
            else
            {
-               HLOGF(mglog.Debug, "STILL %zu FRESH LOSS RECORDS, FIRST: %d-%d (%d) TTL: %d", m_FreshLoss.size(),
+               HLOGF(mglog.Debug, "STILL %" PRIzu " FRESH LOSS RECORDS, FIRST: %d-%d (%d) TTL: %d", m_FreshLoss.size(),
                        i->seq[0], i->seq[1], 1+CSeqNo::seqcmp(i->seq[1], i->seq[0]),
                        i->ttl);
            }
diff --git a/srtcore/srt_compat.h b/srtcore/srt_compat.h
index a0ce20ad3..702324ed9 100644
--- a/srtcore/srt_compat.h
+++ b/srtcore/srt_compat.h
@@ -38,11 +38,33 @@ written by
    #define SRT_API __attribute__ ((visibility("default")))
 #endif
 
+#ifdef WIN32
+   // https://msdn.microsoft.com/en-us/library/tcxf1dw6.aspx
+   // printf() Format for ssize_t
+   #if !defined(PRIzd)
+      #define PRIzd "Id"
+   #endif
+   // printf() Format for size_t
+   #if !defined(PRIzu)
+      #define PRIzu "Iu"
+   #endif
+#else
+   // http://www.gnu.org/software/libc/manual/html_node/Integer-Conversions.html
+   // printf() Format for ssize_t
+   #if !defined(PRIzd)
+      #define PRIzd "zd"
+   #endif
+   // printf() Format for size_t
+   #if !defined(PRIzu)
+      #define PRIzu "zu"
+   #endif
+#endif
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-
 /* Ensures that we store the error in the buffer and return the bufer. */
 SRT_API const char * SysStrError(int errnum, char * buf, size_t buflen);