diff options
Diffstat (limited to 'man2/pidfd_getfd.2')
| -rw-r--r-- | man2/pidfd_getfd.2 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/man2/pidfd_getfd.2 b/man2/pidfd_getfd.2 index 9e3af2a..918f1d2 100644 --- a/man2/pidfd_getfd.2 +++ b/man2/pidfd_getfd.2 @@ -2,7 +2,7 @@ .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" -.TH pidfd_getfd 2 2023-03-30 "Linux man-pages 6.05.01" +.TH pidfd_getfd 2 2023-10-31 "Linux man-pages 6.7" .SH NAME pidfd_getfd \- obtain a duplicate of another process's file descriptor .SH LIBRARY @@ -12,11 +12,11 @@ Standard C library .nf .BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */" .B #include <unistd.h> -.PP +.P .BI "int syscall(SYS_pidfd_getfd, int " pidfd ", int " targetfd , .BI " unsigned int " flags ); .fi -.PP +.P .IR Note : glibc provides no wrapper for .BR pidfd_getfd (), @@ -30,7 +30,7 @@ This new file descriptor is a duplicate of an existing file descriptor, .IR targetfd , in the process referred to by the PID file descriptor .IR pidfd . -.PP +.P The duplicate file descriptor refers to the same open file description (see .BR open (2)) as the original file descriptor in the process referred to by @@ -40,19 +40,19 @@ Furthermore, operations on the underlying file object (for example, assigning an address to a socket object using .BR bind (2)) can equally be performed via the duplicate file descriptor. -.PP +.P The close-on-exec flag .RB ( FD_CLOEXEC ; see .BR fcntl (2)) is set on the file descriptor returned by .BR pidfd_getfd (). -.PP +.P The .I flags argument is reserved for future use. Currently, it must be specified as 0. -.PP +.P Permission to duplicate another process's file descriptor is governed by a ptrace access mode .B PTRACE_MODE_ATTACH_REALCREDS @@ -111,7 +111,7 @@ Linux 5.6. .SH NOTES For a description of PID file descriptors, see .BR pidfd_open (2). -.PP +.P The effect of .BR pidfd_getfd () is similar to the use of |