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util: allow clearing cloexec bit
* src/util/util.h (virSetInherit): New prototype. * src/util/util.c (virSetCloseExec): Move guts... (virSetInherit): ...to new function, and allow clearing. * src/libvirt_private.syms (util.h): Export it.
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@ -913,6 +913,7 @@ virRun;
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virRunWithHook;
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virSetBlocking;
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virSetCloseExec;
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virSetInherit;
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virSetNonBlock;
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virSetUIDGID;
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virSkipSpaces;
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@ -273,12 +273,20 @@ int virSetNonBlock(int fd) {
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}
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int virSetCloseExec(int fd)
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{
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return virSetInherit(fd, false);
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}
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#ifndef WIN32
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int virSetCloseExec(int fd) {
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int virSetInherit(int fd, bool inherit) {
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int flags;
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if ((flags = fcntl(fd, F_GETFD)) < 0)
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return -1;
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if (inherit)
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flags &= ~FD_CLOEXEC;
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else
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flags |= FD_CLOEXEC;
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if ((fcntl(fd, F_SETFD, flags)) < 0)
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return -1;
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@ -931,7 +939,7 @@ virRunWithHook(const char *const*argv,
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#else /* WIN32 */
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int virSetCloseExec(int fd ATTRIBUTE_UNUSED)
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int virSetInherit(int fd ATTRIBUTE_UNUSED, bool inherit ATTRIBUTE_UNUSED)
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{
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return -1;
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}
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@ -51,6 +51,7 @@ enum {
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int virSetBlocking(int fd, bool blocking) ATTRIBUTE_RETURN_CHECK;
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int virSetNonBlock(int fd) ATTRIBUTE_RETURN_CHECK;
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int virSetInherit(int fd, bool inherit) ATTRIBUTE_RETURN_CHECK;
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int virSetCloseExec(int fd) ATTRIBUTE_RETURN_CHECK;
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/* This will execute in the context of the first child
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