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* [gcc r14-1571] libstdc++: Use close-on-exec for file descriptors in filesystem::copy_file
@ 2023-06-06 11:38 Jonathan Wakely
0 siblings, 0 replies; only message in thread
From: Jonathan Wakely @ 2023-06-06 11:38 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:7e8e071c4b64f1b6ea5ddf528724fc793a0f0e36
commit r14-1571-g7e8e071c4b64f1b6ea5ddf528724fc793a0f0e36
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Jun 5 17:45:37 2023 +0100
libstdc++: Use close-on-exec for file descriptors in filesystem::copy_file
libstdc++-v3/ChangeLog:
* src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
close-on-exec flag on file descriptors.
Diff:
---
libstdc++-v3/src/filesystem/ops-common.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/libstdc++-v3/src/filesystem/ops-common.h b/libstdc++-v3/src/filesystem/ops-common.h
index 901f166514f..f04bbc66d7d 100644
--- a/libstdc++-v3/src/filesystem/ops-common.h
+++ b/libstdc++-v3/src/filesystem/ops-common.h
@@ -515,25 +515,26 @@ _GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM
int fd;
};
- int iflag = O_RDONLY;
+ int common_flags = 0;
+#ifdef O_CLOEXEC
+ common_flags |= O_CLOEXEC;
+#endif
#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
- iflag |= O_BINARY;
+ common_flags |= O_BINARY;
#endif
+ const int iflag = O_RDONLY | common_flags;
CloseFD in = { posix::open(from, iflag) };
if (in.fd == -1)
{
ec.assign(errno, std::generic_category());
return false;
}
- int oflag = O_WRONLY|O_CREAT;
+ int oflag = O_WRONLY | O_CREAT | common_flags;
if (options.overwrite || options.update)
oflag |= O_TRUNC;
else
oflag |= O_EXCL;
-#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
- oflag |= O_BINARY;
-#endif
CloseFD out = { posix::open(to, oflag, S_IWUSR) };
if (out.fd == -1)
{
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