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authordkf <donal.k.fellows@manchester.ac.uk>2017-04-25 13:08:52 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2017-04-25 13:08:52 (GMT)
commitfa02e7f947236f2d780798ba13956209e355036e (patch)
tree1e469a22e35b12895ef4930dab953167033dcd76 /unix
parent2507a22c1331a14e20f89bc665f8f8f0810d8da8 (diff)
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Deal with a couple of obscure causes of warnings on some versions of OSX.
Diffstat (limited to 'unix')
-rw-r--r--unix/tclUnixInit.c58
-rw-r--r--unix/tclUnixSock.c35
2 files changed, 67 insertions, 26 deletions
diff --git a/unix/tclUnixInit.c b/unix/tclUnixInit.c
index badfb36..67e0b65 100644
--- a/unix/tclUnixInit.c
+++ b/unix/tclUnixInit.c
@@ -744,6 +744,43 @@ Tcl_GetEncodingNameFromEnvironment(
*----------------------------------------------------------------------
*/
+#if defined(HAVE_COREFOUNDATION) && MAC_OS_X_VERSION_MAX_ALLOWED > 1020
+/*
+ * Helper because whether CFLocaleCopyCurrent and CFLocaleGetIdentifier are
+ * strongly or weakly bound varies by version of OSX, triggering warnings.
+ */
+
+static inline void
+InitMacLocaleInfoVar(
+ CFLocaleRef (*localeCopyCurrent)(void),
+ CFStringRef (*localeGetIdentifier)(CFLocaleRef),
+ Tcl_Interp *interp)
+{
+ CFLocaleRef localeRef;
+ CFStringRef locale;
+ char loc[256];
+
+ if (localeCopyCurrent == NULL || localeGetIdentifier == NULL) {
+ return;
+ }
+
+ localeRef = localeCopyCurrent();
+ if (!localeRef) {
+ return;
+ }
+
+ locale = localeGetIdentifier(localeRef);
+ if (locale && CFStringGetCString(locale, loc, 256,
+ kCFStringEncodingUTF8)) {
+ if (!Tcl_CreateNamespace(interp, "::tcl::mac", NULL, NULL)) {
+ Tcl_ResetResult(interp);
+ }
+ Tcl_SetVar(interp, "::tcl::mac::locale", loc, TCL_GLOBAL_ONLY);
+ }
+ CFRelease(localeRef);
+}
+#endif /*defined(HAVE_COREFOUNDATION) && MAC_OS_X_VERSION_MAX_ALLOWED > 1020*/
+
void
TclpSetVariables(
Tcl_Interp *interp)
@@ -762,29 +799,12 @@ TclpSetVariables(
#ifdef HAVE_COREFOUNDATION
char tclLibPath[MAXPATHLEN + 1];
-#if MAC_OS_X_VERSION_MAX_ALLOWED > 1020
/*
* Set msgcat fallback locale to current CFLocale identifier.
*/
- CFLocaleRef localeRef;
-
- if (&CFLocaleCopyCurrent != NULL && &CFLocaleGetIdentifier != NULL &&
- (localeRef = CFLocaleCopyCurrent())) {
- CFStringRef locale = CFLocaleGetIdentifier(localeRef);
-
- if (locale) {
- char loc[256];
-
- if (CFStringGetCString(locale, loc, 256, kCFStringEncodingUTF8)) {
- if (!Tcl_CreateNamespace(interp, "::tcl::mac", NULL, NULL)) {
- Tcl_ResetResult(interp);
- }
- Tcl_SetVar(interp, "::tcl::mac::locale", loc, TCL_GLOBAL_ONLY);
- }
- }
- CFRelease(localeRef);
- }
+#if MAC_OS_X_VERSION_MAX_ALLOWED > 1020
+ InitMacLocaleInfoVar(CFLocaleCopyCurrent, CFLocaleGetIdentifier, interp);
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED > 1020 */
if (MacOSXGetLibraryPath(interp, MAXPATHLEN, tclLibPath) == TCL_OK) {
diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c
index ca8d677..e8767e2 100644
--- a/unix/tclUnixSock.c
+++ b/unix/tclUnixSock.c
@@ -698,6 +698,33 @@ TcpClose2Proc(
*
*----------------------------------------------------------------------
*/
+
+#ifndef NEED_FAKE_RFC2553
+static inline int
+IPv6AddressNeedsNumericRendering(
+ struct in6_addr addr)
+{
+ if (IN6_ARE_ADDR_EQUAL(&addr, &in6addr_any)) {
+ return 1;
+ }
+
+ /*
+ * The IN6_IS_ADDR_V4MAPPED macro has a problem with aliasing warnings on
+ * at least some versions of OSX.
+ */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-aliasing"
+ if (!IN6_IS_ADDR_V4MAPPED(&addr)) {
+#pragma GCC diagnostic pop
+ return 0;
+ }
+
+ return (addr.s6_addr[12] == 0 && addr.s6_addr[13] == 0
+ && addr.s6_addr[14] == 0 && addr.s6_addr[15] == 0);
+}
+#endif /* NEED_FAKE_RFC2553 */
+
static void
TcpHostPortList(
Tcl_Interp *interp,
@@ -723,13 +750,7 @@ TcpHostPortList(
}
#ifndef NEED_FAKE_RFC2553
} else if (addr.sa.sa_family == AF_INET6) {
- if ((IN6_ARE_ADDR_EQUAL(&addr.sa6.sin6_addr,
- &in6addr_any))
- || (IN6_IS_ADDR_V4MAPPED(&addr.sa6.sin6_addr) &&
- addr.sa6.sin6_addr.s6_addr[12] == 0 &&
- addr.sa6.sin6_addr.s6_addr[13] == 0 &&
- addr.sa6.sin6_addr.s6_addr[14] == 0 &&
- addr.sa6.sin6_addr.s6_addr[15] == 0)) {
+ if (IPv6AddressNeedsNumericRendering(addr.sa6.sin6_addr)) {
flags |= NI_NUMERICHOST;
}
#endif /* NEED_FAKE_RFC2553 */