Section 2 - System Calls, Alphabetical
a b c d
e f g h
i j k l
m n o p
q r s t
u v w x
y z
_exit(2) - terminate the calling process
a
accept(2) - accept a connection on a socket
access(2) - check access permissions of a file or pathname
acct(2) - enable or disable process accounting
adjtime(2) - correct the time to allow synchronization of the system clock
aio_cancel(2) - cancel an outstanding asynchronous I/O operation (REALTIME)
aio_error(2) - retrieve error status of asynchronous I/O operation (REALTIME)
aio_read(2) - asynchronous read from a file (REALTIME)
aio_return(2) - retrieve return status of asynchronous I/O operation (REALTIME)
aio_suspend(2) - suspend until asynchronous I/O operations or timeout complete (REALTIME)
aio_waitcomplete(2) - wait for the next completion of an aio request
aio_write(2) - asynchronous write to a file (REALTIME)
b
bind(2) - assign a local protocol address to a socket
brk(2), sbrk(2) - change data segment size
c
chdir(2), fchdir(2) - change current working directory
chflags(2), fchflags(2) - set file flags
chmod(2), fchmod(2), lchmod(2) - change mode of file
chown(2), fchown(2), lchown(2) - change owner and group of a file
chroot(2) - change root directory
clock_gettime(2), clock_settime(2), clock_getres(2) - get/set/calibrate date and time
close(2) - delete a descriptor
connect(2) - initiate a connection on a socket
creat(2) - create a new file
d
dup(2), dup2(2) - duplicate an existing file descriptor
e
execve(2) - execute a file
f
fcntl(2) - file control
fhopen(2), fhstat(2), fhstatfs(2) - access file via file handle
flock(2) - apply or remove an advisory lock on an open file
fork(2) - create a new process
fsync(2) - synchronise changes to a file
g
getdirentries(2), getdents(2) - get directory entries in a filesystem independent format
getdtablesize(2) - get descriptor table size
getfh(2) - get file handle
getfsstat(2) - get list of all mounted filesystems
getgid(2), getegid(2) - get group process identification
getgroups(2) - get group access list
getitimer(2), setitimer(2) - get/set value of interval timer
getlogin(2), getlogin_r(2), setlogin(2) - get/set login name
getpeername(2) - get name of connected peer
getpgrp(2) - get process group
getpid(2), getppid(2) - get parent or calling process identification
getpriority(2), setpriority(2) - get/set program scheduling priority
getrlimit(2), setrlimit(2) - control maximum system resource consumption
getrusage(2) - get information about resource utilization
getsid(2) - get process session
getsockname(2) - get socket name
getsockopt(2), setsockopt(2) - get and set options on sockets
gettimeofday(2), settimeofday(2) - get/set date and time
getuid(2), geteuid(2) - get user identification
h
i
i386_get_ioperm(2), i386_set_ioperm(2) - manage per-process access to the i386 I/O port space
i386_get_ldt(2), i386_set_ldt(2) - manage i386 per-process Local Descriptor Table entries
i386_vm86(2) - control vm86-related functions
intro(2) - introduction to system calls and error numbers
ioctl(2) - control device
issetugid(2) - is current process tainted by uid or gid changes
j
jail(2) - imprison current process and future decendants
k
kill(2) - send signal to a process
killpg(2) - send signal to a process group
kldfind(2) - returns the fileid of a kld file
kldfirstmod(2) - return first module id from the kld file specified
kldload(2) - load KLD files into the kernel
kldnext(2) - return the fileid of the next kld file
kldstat(2) - get status of kld file
kldsym(2) - look up address by symbol name in a KLD
kldunload(2) - unload kld files
kqueue(2), kevent(2) - kernel event notification mechanism
ktrace(2) - process tracing
l
link(2) - make a hard file link
listen(2) - listen for connections on a socket
lseek(2) - reposition read/write file offset
m
madvise(2) - give advice about use of memory
mincore(2) - get advice about use of memory
minherit(2) - control the inheritance of pages
mkdir(2) - make a directory file
mkfifo(2) - make a fifo file
mknod(2) - make a special file node
mlock(2), munlock(2) - lock (unlock) physical pages in memory
mmap(2) - allocate memory, or map files or devices into memory
modfind(2) - returns the modid of a kernel module
modnext(2) - return the modid of the next kernel module
modstat(2) - get status of kernel module
mount(2), unmount(2) - mount or dismount a filesystem
mprotect(2) - control the protection of pages
msync(2) - synchronize a mapped region
munmap(2) - remove a mapping
n
nanosleep(2) - suspend process execution for an interval measured in nanoseconds
nfssvc(2) - NFS services
ntp_adjtime(2) - NTP daemon application interface
ntp_gettime(2) - NTP user application interface
o
open(2) - open or create a file for reading or writing
p
pathconf(2), fpathconf(2) - get configurable pathname variables
pipe(2) - create descriptor pair for interprocess communication
poll(2) - synchronous I/O multiplexing
profil(2) - control process profiling
ptrace(2) - process tracing and debugging
q
quotactl(2) - manipulate filesystem quotas
r
read(2), readv(2), pread(2) - read input
readlink(2) - read value of a symbolic link
reboot(2) - reboot system or halt processor
recv(2), recvfrom(2), recvmsg(2) - receive a message from a socket
rename(2) - change the name of a file
revoke(2) - revoke file access
rfork(2) - manipulate process resources
rmdir(2) - remove a directory file
rtprio(2) - examine or modify a process realtime or idle priority
s
sched_get_priority_max(2), sched_get_priority_min(2), sched_rr_get_interval(2) - get scheduling parameter limits
sched_setparam(2), sched_getparam(2) - set/get scheduling parameters
sched_setscheduler(2), sched_getscheduler(2) - set/get scheduling policy and scheduler parameters
sched_yield(2) - yield processor
select(2) - synchronous I/O multiplexing
semctl(2) - control operations on a semaphore set
semget(2) - obtain a semaphore id
semop(2) - atomic array of operations on a semaphore set
send(2), sendto(2), sendmsg(2) - send a message from a socket
sendfile(2) - send a file to a socket
setgroups(2) - set group access list
setpgid(2), setpgrp(2) - set process group
setregid(2) - set real and effective group ID
setresgid(2), setresuid(2) - set real, effective and saved user or group ID
setreuid(2) - set real and effective user ID's
setsid(2) - create session and set process group ID
setuid(2), seteuid(2), setgid(2), setegid(2) - set user and group ID
shmat(2), shmdt(2) - attach or detach shared memory
shmctl(2) - shared memory control
shmget(2) - obtain a shared memory identifier
shutdown(2) - shut down part of a full-duplex connection
sigaction(2) - software signal facilities
sigaltstack(2) - set and/or get signal stack context
sigblock(2) - block signals
sigpause(2) - atomically release blocked signals and wait for interrupt
sigpending(2) - get pending signals
sigprocmask(2) - manipulate current signal mask
sigreturn(2) - return from signal
sigsetmask(2) - set current signal mask
sigstack(2) - set and/or get signal stack context
sigsuspend(2) - atomically release blocked signals and wait for interrupt
sigvec(2) - software signal facilities
socket(2) - create an endpoint for communication
socketpair(2) - create a pair of connected sockets
stat(2), lstat(2), fstat(2) - get file status
statfs(2) - get file system statistics
swapon(2) - add a swap device for interleaved paging/swapping
symlink(2) - make symbolic link to a file
sync(2) - schedule filesystem updates
sysarch(2) - architecture-dependent system call
syscall(2), __syscall(2) - indirect system call
t
truncate(2), ftruncate(2) - truncate or extend a file to a specified length
u
umask(2) - set file creation mode mask
undelete(2) - attempt to recover a deleted file
unlink(2) - remove directory entry
utimes(2), lutimes(2), futimes(2) - set file access and modification times
v
vfork(2) - spawn new process in a virtual memory efficient way
w
wait(2), waitpid(2), wait4(2), wait3(2) - wait for process termination
write(2), writev(2), pwrite(2) - write output
x
y
z
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