[OE-core] [PATCH] socat: Use c_ispeed and c_ospeed based upon libc

[Khem Raj]

musl calls them __c_ispeed and __c_ospeed
and we can not use get/set APIs because the get APIs
will return the value from iflags and not from *speed
element from termios struct

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 ...001-Access-c_ispeed-and-c_ospeed-via-APIs.patch | 53 ++++++++++++++--------
 1 file changed, 33 insertions(+), 20 deletions(-)

diff --git a/meta/recipes-connectivity/socat/socat/0001-Access-c_ispeed-and-c_ospeed-via-APIs.patch b/meta/recipes-connectivity/socat/socat/0001-Access-c_ispeed-and-c_ospeed-via-APIs.patch
index 367b48f..c0e27f3 100644
--- a/meta/recipes-connectivity/socat/socat/0001-Access-c_ispeed-and-c_ospeed-via-APIs.patch
+++ b/meta/recipes-connectivity/socat/socat/0001-Access-c_ispeed-and-c_ospeed-via-APIs.patch
@@ -1,39 +1,52 @@
-From 545d3dec8c91d6074516ffcfa79323ddf9d83839 Mon Sep 17 00:00:00 2001
+From fb10ab134d630705cae0c7be42437cc289af7d32 Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem at gmail.com>
 Date: Tue, 15 Mar 2016 21:36:02 +0000
-Subject: [PATCH] Access c_ispeed and c_ospeed via APIs
+Subject: [PATCH] Use __c_ispeed and __c_ospeed on musl
 
-Use cfsetispeed(), cfsetospeed(), cfgetispeed, and cfgetospeed()
-instead of operating on c_ispeed and c_ospeed termios structure
-members directly because they are not guaranteed to exist on all
-libc implementations
+Original intention of these asserts is to find if termios structure
+is mapped correctly to locally define union, the get* APIs for
+baudrate would not do the right thing since they do not return the
+value from c_ospeed/c_ispeed but the value which is stored in iflag
+for baudrate.
+
+So we check if we are on Linux but not using glibc then we use
+__c_ispeed and __c_ospeed as defined in musl, however these are
+internal elements of structs it should not have been used this
+way.
 
 Signed-off-by: Khem Raj <raj.khem at gmail.com>
+
 ---
-Upstream-Status: Submitted
+Upstream-Status: Pending
 
- xioinitialize.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
+ xioinitialize.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
 
 diff --git a/xioinitialize.c b/xioinitialize.c
-index 9f50155..632ca4c 100644
+index 9f50155..8fb2e4c 100644
 --- a/xioinitialize.c
 +++ b/xioinitialize.c
-@@ -65,10 +65,10 @@ int xioinitialize(void) {
+@@ -65,6 +65,12 @@ int xioinitialize(void) {
  #if HAVE_TERMIOS_ISPEED && (ISPEED_OFFSET != -1) && (OSPEED_OFFSET != -1)
  #if defined(ISPEED_OFFSET) && (ISPEED_OFFSET != -1)
  #if defined(OSPEED_OFFSET) && (OSPEED_OFFSET != -1)
--      tdata.termarg.c_ispeed = 0x56789abc;
--      tdata.termarg.c_ospeed = 0x6789abcd;
--      assert(tdata.termarg.c_ispeed == tdata.speeds[ISPEED_OFFSET]);
--      assert(tdata.termarg.c_ospeed == tdata.speeds[OSPEED_OFFSET]);
-+      cfsetispeed(&tdata.termarg, 0x56789abc);
-+      cfsetospeed(&tdata.termarg, 0x6789abcd);
-+      assert(cfgetispeed(&tdata.termarg) == tdata.speeds[ISPEED_OFFSET]);
-+      assert(cfgetospeed(&tdata.termarg) == tdata.speeds[OSPEED_OFFSET]);
++#if defined(__linux__) && !defined(__GLIBC__)
++      tdata.termarg.__c_ispeed = 0x56789abc;
++      tdata.termarg.__c_ospeed = 0x6789abcd;
++      assert(tdata.termarg.__c_ispeed == tdata.speeds[ISPEED_OFFSET]);
++      assert(tdata.termarg.__c_ospeed == tdata.speeds[OSPEED_OFFSET]);
++#else
+       tdata.termarg.c_ispeed = 0x56789abc;
+       tdata.termarg.c_ospeed = 0x6789abcd;
+       assert(tdata.termarg.c_ispeed == tdata.speeds[ISPEED_OFFSET]);
+@@ -72,6 +78,7 @@ int xioinitialize(void) {
+ #endif
  #endif
  #endif
++#endif
+    }
  #endif
+ 
 -- 
-1.9.1
+2.8.0
 
-- 
2.8.0