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| author | Alejandro Colomar <alx@kernel.org> | 2025-07-12 02:14:40 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2025-07-19 23:30:01 +0200 |
| commit | 417d039b6095c7e4314a070aea7542877c75ebf3 (patch) | |
| tree | 229001d9bac2309c84c68700e9e3ced107a9b970 | |
| parent | 5f2d8b3301e9805660782d7edfd9029010b721c0 (diff) | |
| download | man-pages-417d039b6095c7e4314a070aea7542877c75ebf3.tar.gz | |
man/man2const/F_DUPFD{,_CLOEXEC}.2const: Tweak after split, and add link page
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man/man2const/F_DUPFD.2const | 22 | ||||
| -rw-r--r-- | man/man2const/F_DUPFD_CLOEXEC.2const | 1 |
2 files changed, 8 insertions, 15 deletions
diff --git a/man/man2const/F_DUPFD.2const b/man/man2const/F_DUPFD.2const index 6c7b8d6475..b3635982ad 100644 --- a/man/man2const/F_DUPFD.2const +++ b/man/man2const/F_DUPFD.2const @@ -19,9 +19,8 @@ Standard C library .BI "int fcntl(int " fd ", F_DUPFD_CLOEXEC, int " arg ); .fi .SH DESCRIPTION -.SS Duplicating a file descriptor .TP -.BR F_DUPFD \~(\f[I]int\f[]) +.B F_DUPFD Duplicate the file descriptor .I fd using the lowest-numbered available file descriptor greater than or equal to @@ -36,14 +35,13 @@ See .BR dup (2) for further details. .TP -.BR F_DUPFD_CLOEXEC "\~(\f[I]int\f[]; since Linux 2.6.24)" +.B F_DUPFD_CLOEXEC As for .BR F_DUPFD , but additionally set the close-on-exec flag for the duplicate file descriptor. Specifying this flag permits a program to avoid an additional -.BR fcntl () -.B F_SETFD +.BR F_SETFD (2const) operation to set the .B FD_CLOEXEC flag. @@ -63,10 +61,6 @@ See .BR fcntl (2). .TP .B EINVAL -.I op -is -.B F_DUPFD -and .I arg is negative or is greater than the maximum allowable value (see the discussion of @@ -75,15 +69,12 @@ in .BR getrlimit (2)). .TP .B EMFILE -.I op -is -.B F_DUPFD -and the per-process limit on the number of open file descriptors +The per-process limit on the number of open file descriptors has been reached. .SH VERSIONS POSIX.1-2024 specifies .BR F_DUPFD_CLOFORK , -but Linux doesn't support them. +but Linux doesn't support it. .SH STANDARDS POSIX.1-2008. .SH HISTORY @@ -92,13 +83,14 @@ POSIX.1-2008. SVr4, 4.3BSD, POSIX.1-2001. .TP .B F_DUPFD_CLOEXEC +Linux 2.6.24. POSIX.1-2008. (To get this definition, define .B _POSIX_C_SOURCE with the value 200809L or greater, or .B _XOPEN_SOURCE with the value 700 or greater.) -.SH NOTES +.SH CAVEATS The errors returned by .BR dup2 (2) are different from those returned by diff --git a/man/man2const/F_DUPFD_CLOEXEC.2const b/man/man2const/F_DUPFD_CLOEXEC.2const new file mode 100644 index 0000000000..28cc4b5d54 --- /dev/null +++ b/man/man2const/F_DUPFD_CLOEXEC.2const @@ -0,0 +1 @@ +.so man2const/F_DUPFD.2const |