fchmod man page on Archlinux

Man page or keyword search:  
man Server   11224 pages
apropos Keyword Search (all sections)
Output format
Archlinux logo
[printable version]

FCHMOD(3P)		   POSIX Programmer's Manual		    FCHMOD(3P)

       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

       fchmod — change mode of a file

       #include <sys/stat.h>

       int fchmod(int fildes, mode_t mode);

       The fchmod() function shall be equivalent to chmod()  except  that  the
       file  whose permissions are changed is specified by the file descriptor

       If fildes references a shared memory object, the fchmod() function need
       only  affect  the  S_IRUSR,  S_IWUSR,  S_IRGRP,	S_IWGRP,  S_IROTH, and
       S_IWOTH file permission bits.

       If fildes references a typed memory object, the behavior of fchmod() is

       If fildes refers to a socket, the behavior of fchmod() is unspecified.

       If  fildes refers to a STREAM (which is fattach()-ed into the file sys‐
       tem name space) the call returns successfully, doing nothing.

       Upon successful completion, fchmod()  shall  return  0.	Otherwise,  it
       shall return −1 and set errno to indicate the error.

       The fchmod() function shall fail if:

       EBADF  The fildes argument is not an open file descriptor.

       EPERM  The  effective  user ID does not match the owner of the file and
	      the process does not have appropriate privileges.

       EROFS  The file referred to by fildes resides on a read-only file  sys‐

       The fchmod() function may fail if:

       EINTR  The fchmod() function was interrupted by a signal.

       EINVAL The value of the mode argument is invalid.

       EINVAL The fildes argument refers to a pipe and the implementation dis‐
	      allows execution of fchmod() on a pipe.

       The following sections are informative.

   Changing the Current Permissions for a File
       The following example shows how to change the permissions  for  a  file
       named  /home/cnd/mod1  so that the owner and group have read/write/exe‐
       cute permissions, but the world only has read/write permissions.

	   #include <sys/stat.h>
	   #include <fcntl.h>

	   mode_t mode;
	   int	  fildes;
	   fildes = open("/home/cnd/mod1", O_RDWR);
	   fchmod(fildes, S_IRWXU | S_IRWXG | S_IROTH | S_IWOTH);




       chmod(), chown(), creat(),  fcntl(),  fstatat(),	 fstatvfs(),  mknod(),
       open(), read(), write()

       The Base Definitions volume of POSIX.1‐2008, <sys_stat.h>

       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal  and	 Electronics  Engineers,  Inc  and  The	 Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum	 1  applied.)  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the	referee document. The original Standard can be obtained online
       at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear  in  this  page  are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors,	 see  https://www.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013			    FCHMOD(3P)

List of man pages available for Archlinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net