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- From 6d6b953cf7d2b8d06e7b0363b1b06cb2e902aa0f Mon Sep 17 00:00:00 2001
- From: Simon Rowe <simon.rowe@nutanix.com>
- Date: Thu, 23 Mar 2023 10:07:02 +0000
- Subject: [PATCH] log: use freopen() to reopen standard streams
- In glibc stdin, stdout & stderr are variables that can be assigned to
- (https://www.gnu.org/software/libc/manual/html_node/Standard-Streams.html)
- however this not necessarily true of other C libraries.
- The gentoo musl porting notes
- (https://wiki.gentoo.org/wiki/Musl_porting_notes)
- recommend the substitution of
- stdX = fopen(...)
- with
- freopen(..., stdX)
- Taken from: https://github.com/gentoo/gentoo/blob/master/sys-fs/lvm2/files/lvm2-2.03.14-freopen_n2.patch
- Signed-off-by: Simon Rowe <simon.rowe@nutanix.com>
- ---
- lib/log/log.c | 4 ++++
- 1 file changed, 4 insertions(+)
- diff --git a/lib/log/log.c b/lib/log/log.c
- index 7b4d537b3..5f62c048c 100644
- --- a/lib/log/log.c
- +++ b/lib/log/log.c
- @@ -208,7 +208,11 @@ int reopen_standard_stream(FILE **stream, const char *mode)
-
- _check_and_replace_standard_log_streams(old_stream, new_stream);
-
- +#ifdef __GLIBC__
- *stream = new_stream;
- +#else
- + freopen(NULL, mode, *stream);
- +#endif
- return 1;
- }
-
- --
- 2.22.3
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