<!-- Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009, 2013 The President and Fellows of Harvard College. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --> <html> <head> <title>OS/161 System calls</title> </head> <body bgcolor=#ffffff> <h2 align=center>OS/161 System calls</h2> <p align=center> <A HREF=..>Top</A> | <A HREF=../bin>Binaries</A> | <A HREF=../sbin>Sysadmin binaries</A> | <A HREF=../testbin>Test binaries</A> | <A HREF=../libc>C standard library</A> | <A HREF=../dev>Device drivers</A> | <A HREF=../misc>Miscellaneous</A> </p> <br> <ul> <li> <A HREF=errno.html>errno</A> - error code reporting </ul> <ul> <li> <A HREF=_exit.html>_exit</A> - terminate process <li> <A HREF=chdir.html>chdir</A> - change current directory <li> <A HREF=close.html>close</A> - close file <li> <A HREF=dup2.html>dup2</A> - clone file handles <li> <A HREF=execv.html>execv</A> - execute a program <li> <A HREF=fork.html>fork</A> - copy the current process <li> <A HREF=fstat.html>fstat</A> - get file state information <li> <A HREF=fsync.html>fsync</A> - flush filesystem data for a specific file to disk <li> <A HREF=ftruncate.html>ftruncate</A> - set size of a file <li> <A HREF=__getcwd.html>__getcwd</A> - get name of current working directory (backend) <li> <A HREF=getdirentry.html>getdirentry</A> - read filename from directory <li> <A HREF=getpid.html>getpid</A> - get process id <li> <A HREF=ioctl.html>ioctl</A> - miscellaneous device I/O operations <li> <A HREF=link.html>link</A> - create hard link to a file <li> <A HREF=lseek.html>lseek</A> - change current position in file <li> <A HREF=lstat.html>lstat</A> - get file state information <li> <A HREF=mkdir.html>mkdir</A> - create directory <li> <A HREF=open.html>open</A> - open a file <li> <A HREF=pipe.html>pipe</A> - create pipe object <li> <A HREF=read.html>read</A> - read data from file <li> <A HREF=readlink.html>readlink</A> - fetch symbolic link contents <li> <A HREF=reboot.html>reboot</A> - reboot or halt system <li> <A HREF=remove.html>remove</A> - delete (unlink) a file <li> <A HREF=rename.html>rename</A> - rename or move a file <li> <A HREF=rmdir.html>rmdir</A> - remove directory <li> <A HREF=sbrk.html>sbrk</A> - set process break (allocate memory) <li> <A HREF=stat.html>stat</A> - get file state information <li> <A HREF=symlink.html>symlink</A> - create symbolic link <li> <A HREF=sync.html>sync</A> - flush filesystem data to disk <li> <A HREF=__time.html>__time</A> - get time of day <li> <A HREF=waitpid.html>waitpid</A> - wait for a process to exit <li> <A HREF=write.html>write</A> - write data to file </ul> </body> </html>