summaryrefslogtreecommitdiffstats
path: root/man2/chmod.2
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
commit3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch)
tree3ee7a3ec64525911fa865bb984c86d997d855527 /man2/chmod.2
parentAdding debian version 6.05.01-1. (diff)
downloadmanpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz
manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--man2/chmod.236
1 files changed, 18 insertions, 18 deletions
diff --git a/man2/chmod.2 b/man2/chmod.2
index b1c130e..d7b9694 100644
--- a/man2/chmod.2
+++ b/man2/chmod.2
@@ -9,7 +9,7 @@
.\" <michael@cantor.informatik.rwth-aachen.de>: NFS details
.\" Modified 2004-06-23 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"
-.TH chmod 2 2023-03-30 "Linux man-pages 6.05.01"
+.TH chmod 2 2023-10-31 "Linux man-pages 6.7"
.SH NAME
chmod, fchmod, fchmodat \- change permissions of a file
.SH LIBRARY
@@ -18,22 +18,22 @@ Standard C library
.SH SYNOPSIS
.nf
.B #include <sys/stat.h>
-.PP
+.P
.BI "int chmod(const char *" pathname ", mode_t " mode );
.BI "int fchmod(int " fd ", mode_t " mode );
-.PP
+.P
.BR "#include <fcntl.h>" " /* Definition of AT_* constants */"
.B #include <sys/stat.h>
-.PP
+.P
.BI "int fchmodat(int " dirfd ", const char *" pathname ", mode_t " \
mode ", int " flags );
.fi
-.PP
+.P
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.nf
.BR fchmod ():
Since glibc 2.24:
@@ -50,7 +50,7 @@ Feature Test Macro Requirements for glibc (see
_BSD_SOURCE || _XOPEN_SOURCE >= 500
.\" || (_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED)
.fi
-.PP
+.P
.BR fchmodat ():
.nf
Since glibc 2.10:
@@ -76,7 +76,7 @@ which is dereferenced if it is a symbolic link.
.BR fchmod ()
changes the mode of the file referred to by the open file descriptor
.IR fd .
-.PP
+.P
The new file mode is specified in
.IR mode ,
which is a bit mask created by ORing together zero or
@@ -127,12 +127,12 @@ write by others
.TP
.BR S_IXOTH " (00001)"
execute/search by others
-.PP
+.P
The effective UID of the calling process must match the owner of the file,
or the process must be privileged (Linux: it must have the
.B CAP_FOWNER
capability).
-.PP
+.P
If the calling process is not privileged (Linux: does not have the
.B CAP_FSETID
capability), and the group of the file does not match
@@ -141,7 +141,7 @@ supplementary group IDs, the
.B S_ISGID
bit will be turned off,
but this will not cause an error to be returned.
-.PP
+.P
As a security measure, depending on the filesystem,
the set-user-ID and set-group-ID execution bits
may be turned off if a file is written.
@@ -153,7 +153,7 @@ which may have a special meaning.
For the sticky bit, and for set-user-ID and set-group-ID bits on
directories, see
.BR inode (7).
-.PP
+.P
On NFS filesystems, restricting the permissions will immediately influence
already open files, because the access control is done on the server, but
open files are maintained by the client.
@@ -167,7 +167,7 @@ The
system call operates in exactly the same way as
.BR chmod (),
except for the differences described here.
-.PP
+.P
If the pathname given in
.I pathname
is relative, then it is interpreted relative to the directory
@@ -177,7 +177,7 @@ referred to by the file descriptor
the calling process, as is done by
.BR chmod ()
for a relative pathname).
-.PP
+.P
If
.I pathname
is relative and
@@ -189,13 +189,13 @@ then
is interpreted relative to the current working
directory of the calling process (like
.BR chmod ()).
-.PP
+.P
If
.I pathname
is absolute, then
.I dirfd
is ignored.
-.PP
+.P
.I flags
can either be 0, or include the following flag:
.TP
@@ -205,7 +205,7 @@ If
is a symbolic link, do not dereference it:
instead operate on the link itself.
This flag is not currently implemented.
-.PP
+.P
See
.BR openat (2)
for an explanation of the need for
@@ -218,7 +218,7 @@ is set to indicate the error.
.SH ERRORS
Depending on the filesystem,
errors other than those listed below can be returned.
-.PP
+.P
The more general errors for
.BR chmod ()
are listed below: