Table C-3. HP-UX and Linux System Calls Comparison Table
HP-UX System Calls[6] | Linux Equivalent | Description |
|---|
accept | accept | Accept connection on a socket. |
access | access | Determine accessibility of a file. |
acct | None | Enable or disable process accounting. |
acl | None | Set a file's ACL information. |
adjtime | adjtime | Correct the time to synchronize the system clock. |
aio_cancel | aio_cancel, aio_cancel64 | Cancel asynchronous I/O operation. |
aio_error | aio_error, aio_error64 | Return error status of asynchronous I/O operation. |
aio_fsync | aio_fsync, aio_fsync64 | Synchronize asynchronous I/O operations. |
aio_read | aio_read, aio_read64 | Start asynchronous read operation. |
aio_reap | None | Wait for multiple asynchronous I/O requests. |
aio_return | aio_return, aio_return64 | Return asynchronous I/O operation status. |
aio_suspend | aio_suspend, aio_suspend64 | Suspend for asynchronous I/O operation. |
aio_write | aio_write, aio_write64 | Start asynchronous write operation. |
alarm | alarm | Set a process's alarm clock. |
audctl | None | Start or halt auditing system; set or get audit files. |
audswitch | None | Suspend or resume auditing on current process. |
audwrite | None | Write audit record for self-auditing process. |
bind | bind | Bind an address to a socket. |
brk | brk | Change data segment space allocation. |
chdir | chdir | Change working directory. |
chmod | chmod | Change file mode access permissions. |
chown | chown | Change owner and group of a file. |
chroot | | Change root directory. |
clock_getres | clock_gettime | Clock operations. |
clock_gettime | clock_gettime | Clock operations. |
clock_settime | clock_gettime | Clock operations. |
close | close | Close a file descriptor. |
connect | connect | Initiate a connection on a socket. |
crashcon | None | Configure system crash dumps. |
creat | creatmay return ENODEV in place of ENXIO as specified by SUSv3[7] | Create a new file or rewrite an existing one. |
creat64 | create64 | Non-POSIX standard API interfaces to support large files (HP-UX). |
dup | dup | Duplicate an open file descriptor. |
dup2 | dup2 | Duplicate an open file descriptor to a specific slot. |
errno | errno (not an API) | Error indicator for system calls. |
exec, execl, execle, execlp, execv, execve, execvp | exec, execl, execle, execlp, execv, execve, execvp | Execute a file. |
exit | exit | Terminate a process. |
fchdir | fchdir | Change working directory. |
fchmod | fchmod | File mode access permissions. |
fchown | fchown | Change owner and group of a file. |
fcntl | fcntl | File control. |
FD_CLR, FD_ISSET FD_SET, FD_ZERO | FD_CLR, FD_ISSET FD_SET, FD_ZERO | Synchronous I/O multiplexing (see select). |
fdatasync | fdatasync | Synchronize a file's in-core state with its state on disk. |
fgetacl | None | Get access control list (ACL) information. |
fork | fork | Create a new process. |
fpathconf | fpathconf | Get configurable path name variables. |
fsctl | None | Filesystem control. |
fsetacl | None | Access control list (ACL) information. |
fstat | fstat | Get file status. |
fstat64 | fstat64 | Non-POSIX standard API interfaces to support large files. |
fstatfs | fstatfs | Get file status. |
fstatvfs | fstatvfs | Get file status. |
fstatvfs64 | fstatvfs64 | Non-POSIX standard API interfaces to support large files. |
fsync, fdatasync | fsync | Synchronize a file's in-core state with its state on disk. |
ftime | ftime | Get date and time more precisely. |
ftruncate | ftruncate | Truncate a file to a specified length. |
ftruncate64 | ftruncate64 | Non-POSIX standard API interfaces to support large files. |
getaccess | None | Get a user's effective access rights to a file. |
getacl, fgetacl | None | Get access control list (ACL) information. |
getaudid | getaudid | Get the audit ID (aid()) for the current process. |
getaudproc | None | Get audit process flag for calling process. |
getcontext | getcontext | Get and set current user context. |
getdirentries | getdirentries | Get entries from a directory in a filesystem-independent format. |
getdomainname | getdomainname | Get/set name of current nis domain. |
getegid | getegid | Get effective group ID. |
geteuid | geteuid | Get effective user group ID. |
getevent | None | Get events and system calls currently being audited. |
getfh | None | Get file handle for file on remote node. |
getgid | getgid | Get real group ID. |
getgroups | getgroups | Get group access list. |
gethostid | gethostid | Get an identifier for the current host. |
gethostname | gethostname | Get name of current host. |
getitimer | getitimer | Get value of interval timer. |
getksym | None | Get information for a global kernel symbol. |
getms | None | Receive next message from a streams file. |
getpagesize | getpagesize | Get the current page size. |
getpeername | getpeername | Get address of connected peer. |
getpgid | getpgid | Get process group ID. |
getpgrp | getpgrp | Get process group ID. |
getpgrp2 | None | Get process group ID of specified process. |
getpid, getpgid, getpgrp, getpgrp2, getppid | getpid, getpgid, getpgrp, getppid | Get process, process group, and parent process ID. |
getpmsg | None | Receive next message from a streams file in a priority order. |
getpriority, setpriority | getpriority, setpriority | Get or set process priority. |
getprivgrp, setprivgrp | None | Get and set special attributes for group. |
geTRlimit, setrlimit | getrlimit, setrlimit | Control consumption of system resources. |
geTRlimit64 | getrlimit64 | Non-POSIX standard API interfaces to support large files. |
getrusage | geTRusage | Get information about resource utilization. |
getsid | getsid | Get session ID. |
getsockname | getsockname | Get socket address. |
getsockopt | getsockopt | Get or set options on sockets. |
gettimeofday | gettimeofday | Get the date and time. |
gettune | None | Get value of a kernel tunable parameter. |
getuid, geteuid, getgid, getegid | getuid, geteuid, getgid, getegid | Get real user, effective user, real group and effective group IDs. |
gtty | gtty | Bsd terminal modes. |
ioctl | ioctl | Control device. |
iscomsec | None | Check if system has been converted to a trusted system. |
kill | killLSB specification says if pid is -1, sig shall not be sent to the calling process. | Send a signal to a process or a group of processes. |
killpg, getpgrp, setpgrp | killpg, getpgrp, setpgrp | 4.2 BSD-compatible process control facilities. |
lilockf | None | Provide semaphores and record locking on files. |
link | link | Link to a file. |
lio_listio | lio_listio, lio_listio64 | Start a list of asynchronous I/O operations. |
listen | listen | Listen for connections on a socket. |
loadmod | None | Load kernel modules on demand. |
lockf64 | lockf64 | Non-POSIX standard API interfaces to support large files. |
lseek | lseek | Move read/write file pointer; seek. |
lseek64 | lseek64 | Non-POSIX standard API interfaces to support large files. |
lstat | lstat | Get symbolic link status. |
lstat64 | lstat64 | Non-POSIX standard API interfaces to support large files. |
madvise | madvise | Advise system of process's expected paging behavior. |
makecontext, swapcontext | makecontext, swapcontext | Manipulate user contexts,. |
mkdir | mkdir | Make a directory file. |
mknod | mknod | Make directory, special, or ordinary file. |
mlock | mlock | Lock segment of process address space in memory. |
mlockall | mlockall | Lock process address space in memory. |
mmap | mmap[8] | Map object into virtual memory. |
mmap64 | mmap64[9] | Non-POSIX standard API interfaces to support large files. |
modpath | None | Change global search path for dynamically loadable kernel modules. |
modstat | None | Get information for a dynamically loaded kernel module. |
moduload | None | Unload a kernel module on demand. |
mount | mount | Mount a filesystem. |
mpctl | None | Multiprocessor control. |
mprotect | mprotect | Modify memory mapping access protections. |
mq_close | mq_close[10] | Close a message queue descriptor. |
mq_getattr | mq_getattr | Get status information and attributes associated with a message queue. |
mq_notify | mq_notify | Register/cancel a notification request with a message queue. |
mq_open | mq_open | Create/open a message queue. |
mq_receive | mq_receive | Receive a message from a message queue. |
mq_send | mq_send | Send a message to a message queue. |
mq_setattr | mq_setattr | Set the blocking status of a message queue associated with a descriptor. |
mq_unlink | mq_unlink | Unlink a message queue. |
msem_init | None | Initialize semaphore in mapped file or anonymous memory region. |
msem_lock | None | Lock a semaphore. |
msem_remove | None | Remove semaphore in mapped file or anonymous region. |
msem_unlock | None | Unlock a semaphore. |
msgctl | msgctl | Message control operations. |
msgget | msgget | Get message queue. |
msgop | msgop | Message operations. |
msgrcv | msgrcv | Receive message from message queue. |
msgsnd | msgsnd | Send message to message queue. |
msync | msync | Synchronize a mapped file. |
munlock | munlock | Unlock segment of process virtual address space. |
munlockall | munlockall | Unlock process virtual address space. |
munmap | munmap | Unmap a mapped region. |
nanosleep | nanosleep | High-resolution sleep. |
nice | nice | Change priority of a process. |
O_LARGEFILE | O_LARGEFILE | Non-POSIX standard API interfaces to support large files. |
open | openLSB specifications says open may return ENODEV in place of ENXIO | Open file for reading or writing. |
open64 | open64 | Non-POSIX standard API interfaces to support large files. |
pathconf | pathconf | Get configurable path name variables. |
pause | pause | Suspend process until signal. |
pipe | pipe | Create an interprocess channel. |
plock | mlockall | Lock process, text, data, stack, or shared library in memory. |
poll | poll | Monitor I/O conditions on multiple file descriptors. |
pread | pread | Read from file. |
pread64 | pread64 | Non-POSIX standard API interfaces to support large files. |
prealloc | None | Pre-allocate fast disk storage. |
prealloc64 | None | Non-POSIX standard API interfaces to support large files. |
PRI_HPUX_TO_POSIX | None | Return POXIX.4 process priority. |
PRI_POSIX_TO_HPUX | None | Return HP-UX process priority. |
profil | profil | Execution time profile. |
pset_assign | None | Change processor set assignment. |
pset_bind | None | Bind a process or a thread to a processor set. |
pset_create | None | Create a processor set. |
pset_ctl | None | Processor set control. |
pset_destroy | None | Destroy processor set. |
pset_getattr | None | Processor set control API. |
pset_setattr | None | Processor set control API. |
pstat pstat_getcommandline, pstat_getcrashdev, pstat_getcrashinfo, pstat_getdisk, pstat_getdynamic, pstat_getfile, pstat_getfile2, pstat_getfiledetails, pstat_getipc, pstat_getlv, pstat_getlwp, pstat_getmpathname, pstat_getmsg, pstat_getnode, pstat_getpathname, pstat_getpmq, pstat_getproc, pstat_getprocessor, pstat_getprocvm, pstat_getpsem, pstat_getpset, pstat_getsem, pstat_getshm, pstat_getsocket, pstat_getstable, pstat_getstream, pstat_getswap, pstat_getvminfo, pstat_static | None | Get system information. |
ptrace | ptrace | Process trace. |
putmsg | None | Send a message on a stream. |
putpmsg | None | Send a message on a stream in different priority bands. |
pw_getukid, pw_wait, pw_post, pw_postv, pw_getvmax | None | Lightweight synchronization mechanism. |
pw_getukid | None | Lightweight synchronization mechanism. |
pw_getvmax | None | Lightweight synchronization mechanism. |
pw_post | None | Synchronization mechanism. |
pw_postv | None | Lightweight synchronization mechanism. |
pw_wait | None | Lightweight synchronization mechanism. |
pwrite | pwrite | Write to file. |
pwrite64 | pwrite64 | Non-POSIX standard API interfaces to support large files. |
quotactl | None | Manipulate disk quotas. |
raise | raise | Send a signal to executing program. |
read | read | Read input. |
readlink | readlink | Read value of a symbolic link. |
readv | readv | Read input. |
reboot | reboot[11] | Boot the system. |
recv | recv | Receive message from a socket. |
recvfrom | recvfrom | Receive message from a socket. |
recvmsg | recvmsg | Receive message from a socket. |
rename | rename | Change the name of a file. |
rmdir | rmdir | Remove a directory file. |
rtprio | None | Change or read real-time priority. |
sbrk | sbrk | Change data segment space allocation. |
sched_get_priority_max | sched_get_priority_max | Return maximum for scheduling policy. |
sched_get_priority_min | sched_get_priority_min | Return minimum for scheduling policy. |
sched_getparam | sched_getparam | Return scheduling parameters. |
sched_getscheduler | sched_getscheduler | Return scheduling policy. |
sched_rr_get_interval | sched_rr_get_interval | Update execution time limit. |
sched_setparam | sched_setparam | Set scheduling parameters. |
sched_setscheduler | sched_setscheduler | Set scheduling policy. |
sched_yield | sched_yield | Force process to relinquish processor. |
select | select | Synchronous I/O multiplexing. |
sem_close | sem_close | Close a named semaphore. |
sem_destroy | sem_destroy | Destroy an unnamed semaphore. |
sem_getvalue | sem_getvalue | Read a POSIX semaphore. |
sem_init | sem_init | Initialize an unnamed semaphore. |
sem_open | sem_open | Open/create a named semaphore. |
sem_post | sem_post | Unlock a POSIX semaphore. |
sem_trywait | sem_trywait | Lock a POSIX semaphore without blocking. |
sem_unlink | sem_unlink | Unlink a named semaphore. |
sem_wait | sem_wait | Lock a POSIX semaphore. |
semctl | semctl | Semaphore control operations. |
semget | semget | Get set of semaphores. |
semop | semop | Semaphore operations. |
semtimedop | semtimedop | Semaphore operations. |
send | send | Send message to a socket. |
sendfile | None | Send the contents of a file through a socket. |
sendfile64 | None | Send the contents of a file through a socket. |
sendmsg | None | Send message to a socket. |
sendto | sendto | Send message to a socket. |
serialize | None | Force target process to run serially with other processes. |
setacl | None | Set access control list (ACL) information. |
setaudid | None | Set audit ID (aid()) for current process. |
setaudproc | None | Set or clear auditing on calling process. |
setcontext | setcontext | Get and set current user context. |
setevent | None | Set current events and system calls to be audited. |
setgid | setgid | Set group ID. |
setgroups | setgroups | Set group access list. |
sethostname | sethostname (maximum length of host name may not be equal to POSIX equivalent of HOST_NAME_MAX) | Set name of host CPU. |
setitimer | setitimer | Set value of interval timer. |
setpgid | setpgid | Set process group ID for job control. |
setpgrp | setpgrp | Set process group ID. |
setpgrp2 | None | Set process group ID. |
setpgrp3 | None | Create session and set process group ID. |
setpriority | setpriority | Set process priority. |
setprivgrp | None | Set special attributes for group. |
setregid | setregid | Set the real and effective group IDs. |
setresgid | setresgid | Set real, effective, and saved group IDs. |
setresuid | setresuid | Set real and effective user IDs. |
setrlimit | setrlimit | Control consumption of system resources. |
setrlimit64 | setrlimit64 | Non-POSIX standard API interfaces to support large files. |
setsid | setsid | Create session and set process group ID. |
setsockopt | setsockopt | Set options on sockets. |
settimeofday | settimeofday | Set the date and time. |
settune | None | Set value of a kernel tunable parameter. |
settune_txn | None | Sets the values of kernel tunable parameters in a transaction. |
setuid | setuid | Set user and group IDs. |
setuname | None | Set node name (system name). |
shm_open | shm_open | Create/open a shared memory object. |
shm_unlink | shm_unlink | Unlink a shared memory object. |
shmat | shmat | Attach shared memory to data segment. |
shmctl | shmctl | Shared memory control operations. |
shmdt | shmdt | Detach shared memory from data segment. |
shmget | shmget | Get shared memory segment. |
shmop | shmop | Shared memory operations. |
shutdown | shutdown | Shut down a socket. |
sigaction | sigaction | Examine and change signal action. |
sigaltstack | sigaltstack | Set and/or get signal alternate stack context. |
sigblock | sigblock | Block signals. |
sighold, sigrelse | sighold, sigrelse | Signal management. |
sigignore | sigignore | Signal management. |
siginterrupt | siginterrupt | Allow signals to interrupt functions. |
sigpause | sigpause | Signal management. |
signal | signal | 4.2 bsd-compatible process control facilities. |
sigpending | sigpending | Examine pending signals. |
sigprocmask | sigprocmask | Examine and change blocked signals. |
sigqueue | sigqueue | Queue a signal to a process. |
sigsend | None | Send a signal to a process or a group of processes. |
sigsendset | None | Send a signal to a group of processes. |
sigsetmask | sigsetmask | Set current signal mask. |
sigspace | None | Assure sufficient signal stack space. |
sigstack | sigstack | Set and/or get signal stack context. |
sigsuspend | sigsuspend | Wait for a signal. |
sigtimedwait | sigtimedwait | Examine and change signal action. |
sigvec | sigvec | 4.2 BSD-compatible process control facilities. |
sigvector | None | Software signal facilities. |
sigwait | sigwait | Examine and change signal action. |
sigwaitinfo | sigwaitinfo | Examine and change signal action. |
socket | socket | Create an endpoint for communication. |
socketpair | socketpair | Create a pair of connected sockets. |
sprofil | None | Execution time profile for disjointed text spaces. |
stat | stat | Get file status. |
stat64 | stat64 | Non-POSIX standard API interfaces to support large files. |
statfs | statfs | Get file system statistics. |
statvfs | statvfs | Get file status. |
statvfs64 | statvfs64 | Non-POSIX standard API interfaces to support large files. |
stime | stime | Set time and date. |
stream | None | Streams enhancements to standard system calls. |
stty | stty | Control terminal device (bell version 6 compatibility). |
swapcontext | swapcontext | Manipulate user contexts. |
swapon | swapon | Add swap device for interleaved paging and swapping. |
symlink | symlink | Make symbolic link to a file. |
sync | sync | Update disk. |
sysconf | sysconf | Get configurable system variables. |
sysfs | sysfs | Get filesystem type info. |
time | time | Get time. |
timer_create | timer_create | Create timer. |
timer_delete | timer_delete | Delete timer. |
timer_getoverrun | timer_getoverrun | Return timer expiration count. |
timer_gettime | timer_gettime | Store timer expiration and reload value. |
timer_settime | timer_settime | Set timer expiration. |
times | times | Get process and child process times. |
TRuncate | truncate | Truncate a file to a specified length. |
TRuncate64 | TRuncate64 | Non-POSIX standard API interfaces to support large files. |
ttrace | None | Tracing facility for multithreaded processes. |
ttrace_wait | None | Wait for ttrace() request. |
tuneinfo2 | None | Retrieve detailed information about kernel tunable parameters. |
ualarm | ualarm | Set the interval timer. |
ulimit | ulimit | Get and set user limits. |
umask | umask | Set and get file creation mask. |
umount | umount, umount2 | Unmount a file system. |
uname | uname | Get information about computer system; set node name (system name). |
unlink | unlink (may return EISDIR instead of EPERM as specified by SUSv3[12]) | Remove directory entry; delete file. |
usleep | usleep | Suspend execution for an interval. |
ustat | ustat | Get mounted file system statistics. |
utime | utime | Set file access and modification times. |
utimes | utimes | Set file access and modification times. |
vfork | vfork | Spawn new process (use fork() instead). |
vfsmount | None | Mount a file system. |
wait | wait | Wait for child process to stop or terminate. |
wait3, wait4 | wait3 (works as specified in SUSv2 except WCONTINUED and WIFCONTINUED are optional) | Wait for child process to change state. |
| | wait4 (waits for process termination, BSD style) | |
waitid | waitid | Wait for child process to change state. |
waitpid | waitpidworks as specified in SUSv3 except WCONTINUED and WIFCONTINUED are optional | Wait for child process to stop or terminate. |
write | write | Write data to a file. |
writev | writev | Write data to a file. |