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11 Systemcalls in alphabetical order


just-a-tabspace-holder- ¯

_exit - like exit but with fewer actions (m+c)

accept - accept a connection on a socket (m+c!)

access - check user's permissions for a file (m+c)

acct - not yet implemented (mc)

adjtimex - set/get kernel time variables (-c)

afs_syscall - reserved andrew filesystem call (-)

alarm - send SIGALRM at a specified time (m+c)

bdflush - flush dirty buffers to disk (-c)

bind - name a socket for interprocess communication (m!c)

break - not yet implemented (-)

brk - change data segment size (mc)

chdir - change working directory (m+c)

chmod - change file attributes (m+c)

chown - change ownership of a file (m+c)

chroot - set a new root directory (mc)

clone - see fork (m-)

close - close a file by reference (m+c)

connect - link 2 sockets (m!c)

creat - create a file (m+c)

create_module - allocate space for a loadable kernel module (-)

delete_module - unload a kernel module (-)

dup - create a file descriptor duplicate (m+c)

dup2 - duplicate a file descriptor (m+c)

execl, execlp, execle, ... - see execve (m+!c)

execve - execute a file (m+c)

exit - terminate a program (m+c)

fchdir - change working directory by reference ()

fchmod - see chmod (mc)

fchown - change ownership of a file (mc)

fclose - close a file by reference (m+!c)

fcntl - file/filedescriptor control (m+c)

flock - change file locking (m!c)

fork - create a child process (m+c)

fpathconf - get info about a file by reference (m+!c)

fread - read array of binary data from stream (m+!c)

fstat - get file status (m+c)

fstatfs - get filesystem status by reference (mc)

fsync - write file cache to disk (mc)

ftime - get timezone+seconds since 1.1.1970 (m!c)

ftruncate - change file size (mc)

fwrite - write array of binary datas to stream (m+!c)

get_kernel_syms - get kernel symbol table or its size (-)

getdomainname - get system's domainname (m!c)

getdtablesize - get filedescriptor table size (m!c)

getegid - get effective group id (m+c)

geteuid - get effective user id (m+c)

getgid - get real group id (m+c)

getgroups - get supplemental groups (m+c)

gethostid - get unique host identifier (m!c)

gethostname - get system's hostname (m!c)

getitimer - get value of interval timer (mc)

getpagesize - get size of a system page (m-!c)

getpeername - get address of a connected peer socket (m!c)

getpgid - get parent group id of a process (+c)

getpgrp - get parent group id of current process (m+c)

getpid - get process id of current process (m+c)

getppid - get process id of the parent process (m+c)

getpriority - get a process/group/user priority (mc)

getrlimit - get resource limits (mc)

getrusage - get usage of resources (m)

getsockname - get the adress of a socket (m!c)

getsockopt - get option settings of a socket (m!c)

gettimeofday - get timezone+seconds since 1.1.1970 (mc)

getuid - get real uid (m+c)

gtty - not yet implemented ()

idle - make a process a candidate for swap (mc)

init_module - insert a loadable kernel module (-)

ioctl - manipulate a character device (mc)

ioperm - set some i/o port's permissions (m-c)

iopl - set all i/o port's permissions (m-c)

ipc - interprocess communication (-c)

kill - send a signal to a process (m+c)

killpg - send a signal to a process group (mc!)

klog - see syslog (-!)

link - create a hardlink for an existing file (m+c)

listen - listen for socket connections (m!c)

llseek - lseek for large files (-)

lock - not implemented yet ()

lseek - change the position ptr of a file descriptor (m+c)

lstat - get file status (mc)

mkdir - create a directory (m+c)

mknod - create a device (mc)

mmap - map a file into memory (mc)

modify_ldt - read or write local descriptor table (-)

mount - mount a filesystem (mc)

mprotect - read, write or execute protect memory (-)

mpx - not implemented yet ()

msgctl - ipc message control (m!c)

msgget - get an ipc message queue id (m!c)

msgrcv - receive an ipc message (m!c)

msgsnd - send an ipc message (m!c)

munmap - unmap a file from memory (mc)

nice - change process priority (mc)

oldfstat - no longer existing

oldlstat - no longer existing

oldolduname - no longer existing

oldstat - no longer existing

olduname - no longer existing

open - open a file (m+c)

pathconf - get information about a file (m+!c)

pause - sleep until signal (m+c)

personality - change current execution domain for ibcs (-)

phys - not implemented yet (m)

pipe - create a pipe (m+c)

prof - not yet implemented ()

profil - execution time profile (m!c)

ptrace - trace a child process (mc)

quotactl - not implemented yet ()

read - read data from a file (m+c)

readv - read datablocks from a file (m!c)

readdir - read a directory (m+c)

readlink - get content of a symbolic link (mc)

reboot - reboot or toggle vulcan death grip (-mc)

recv - receive a message from a connected socket (m!c)

recvfrom - receive a message from a socket (m!c)

rename - move/rename a file (m+c)

rmdir - delete an empty directory (m+c)

sbrk - see brk (mc!)

select - sleep until action on a filedescriptor (mc)

semctl - ipc semaphore control (m!c)

semget - ipc get a semaphore set identifier (m!c)

semop - ipc operation on semaphore set members (m!c)

send - send a message to a connected socket (m!c)

sendto - send a message to a socket (m!c)

setdomainname - set system's domainname (mc)

setfsgid - set filesystem group id ()

setfsuid - set filesystem user id ()

setgid - set real group id (m+c)

setgroups - set supplemental groups (mc)

sethostid - set unique host identifier (mc)

sethostname - set the system's hostname (mc)

setitimer - set interval timer (mc)

setpgid - set process group id (m+c)

setpgrp - has no effect (mc!)

setpriority - set a process/group/user priority (mc)

setregid - set real and effective group id (mc)

setreuid - set real and effective user id (mc)

setrlimit - set resource limit (mc)

setsid - create a session (+c)

setsockopt - change options of a socket (mc)

settimeofday - set timezone+seconds since 1.1.1970 (mc)

setuid - set real user id (m+c)

setup - initialize devices and mount root (-)

sgetmask - see siggetmask (m)

shmat - attach shared memory to data segment (m!c)

shmctl - ipc manipulate shared memory (m!c)

shmdt - detach shared memory from data segment (m!c)

shmget - get/create shared memory segment (m!c)

shutdown - shutdown a socket (m!c)

sigaction - set/get signal handler (m+c)

sigblock - block signals (m!c)

siggetmask - get signal blocking of current process (!c)

signal - setup a signal handler (mc)

sigpause - use a new signal mask until a signal (mc)

sigpending - get pending, but blocked signals (m+c)

sigprocmask - set/get signal blocking of current process (+c)

sigreturn - not yet used ()

sigsetmask - set signal blocking of current process (c!)

sigsuspend - replacement for sigpause (m+c)

sigvec - see sigaction (m!)

socket - create a socket communication endpoint (m!c)

socketcall - socket call multiplexer (-)

socketpair - create 2 connected sockets (m!c)

ssetmask - see sigsetmask (m)

stat - get file status (m+c)

statfs - get filesystem status (mc)

stime - set seconds since 1.1.1970 (mc)

stty - not yet implemented ()

swapoff - stop swapping to a file/device (m-c)

swapon - start swapping to a file/device (m-c)

symlink - create a symbolic link to a file (m+c)

sync - sync memory and disk buffers (mc)

syscall - execute a systemcall by number (-!c)

sysconf - get value of a system variable (m+!c)

sysfs - get infos about configured filesystems ()

sysinfo - get Linux system infos (m-)

syslog - manipulate system logging (m-c)

system - execute a shell command (m!c)

time - get seconds since 1.1.1970 (m+c)

times - get process times (m+c)

truncate - change file size (mc)

ulimit - get/set file limits (c!)

umask - set file creation mask (m+c)

umount - unmount a filesystem (mc)

uname - get system information (m+c)

unlink - remove a file when not busy (m+c)

uselib - use a shared library (m-c)

ustat - not yet implemented (c)

utime - modify inode time entries (m+c)

utimes - see utime (m!c)

vfork - see fork (m!c)

vhangup - virtually hang up current tty (m-c)

vm86 - enter virtual 8086 mode (m-c)

wait - wait for process termination (m+!c)

wait3 - bsd wait for a specified process (m!c)

wait4 - bsd wait for a specified process (mc)

waitpid - wait for a specified process (m+c)

write - write data to a file (m+c)

writev - write datablocks to a file (m!c)

(m) manual page exists.
(+) POSIX compliant.
(-) Linux specific.
(c) in libc.
(!) not a sole system call.uses a different system call.

next up previous contents
Next: 12 Abbreviations Up: e Previous: 10.6 Additional Comments

Converted on:
Fri Mar 29 14:43:04 EST 1996