Here is an alphabetized list of pages on which each system call or library function is described in Chapter 12, "Systems Programming."
Name | Synopsis | Described on page |
|---|
accept | accepts a connection request from a client socket | 517 |
alarm | sets a process "alarm clock" | 489 |
bind | binds a socket to a name | 516 |
bzero | fills an array with values of zero | 526 |
chdir | changes a process's current working directory | 482 |
chmod | changes a file's permission settings | 466 |
chown | changes a file's owner and/or group | 465 |
close | closes a file | 450 |
closedir | close a directory stream | 463 |
connect | connects to a named server socket | 519 |
dup | duplicates a file descriptor | 466 |
dup2 | similar to dup () | 466 |
execl | replaces the calling process with an executable file | 481 |
execlp | similar to execl () | 481 |
execv | similar to execl () | 481 |
execvp | similar to execl () | 481 |
exit | terminates a process | 478 |
fchmod | similar to chmod () | 466 |
fchown | similar to chown () | 465 |
fcntl | gives access to miscellaneous file characteristics | 468 |
fork | duplicates a process | 475 |
fstat | similar to stat () | 462 |
ftruncate | similar to truncate () | 472 |
getegid | returns a process's effective group ID | 484 |
geteuid | returns a process's effective user ID | 484 |
getgid | returns a process's real group ID | 484 |
gethostbyname | returns a structure describing an Internet host | 525 |
gethostname | returns the name of the host | 525 |
getpgid | returns a process's process group ID | 498 |
getpid | returns a process's ID number | 475 |
getppid | returns a parent process's ID number | 475 |
getuid | returns a process's real user ID | 484 |
htonl | converts a host-format number to a network-format number | 526 |
htons | similar to htonl () | 526 |
inet_addr | returns a 32-bit value IP address | 524 |
inet_ntoa | returns a string-format IP address | 525 |
ioctl | controls a device | 469 |
kill | sends a signal to a specified process or group of processes | 492 |
lchown | similar to chown () | 465 |
link | creates a hard link | 469 |
listen | sets the maximum number of pending socket connections | 517 |
lseek | moves to a particular offset in a file | 449 |
lstat | similar to stat () | 462 |
memset | fills an array with a specific value | 526 |
mkdir | create a directory | 471 |
mkfifo | create a named pipe | 505 |
mknod | creates a special file | 471 |
nice | changes a process's priority | 483 |
ntohl | converts a network-format number to a host-format number | 526 |
ntohs | similar to ntohl () | 526 |
open | opens or creates a file | 446 |
opendir | open a directory stream for reading with readdir () | 463 |
pause | suspends the calling process and returns when a signal is received | 490 |
perror | displays message text from most recent system call error | 435 |
pipe | creates an unnamed pipe | 502 |
read | reads bytes from a file into a buffer | 447 |
readdir | read a directory entry from an open stream | 463 |
setegid | sets a process's effective group ID | 484 |
seteuid | sets a process's effective user ID | 484 |
setgid | sets a process's real and effective group ID | 484 |
setpgid | sets a process's real and effective group ID | 497 |
setuid | sets a process's real and effective user ID | 484 |
signal | specifies the action that will be taken when a particular signal arrives | 490 |
socket | creates an unnamed socket | 515 |
stat | returns status information about a file | 462 |
sync | schedules all file buffers to be flushed to disk | 472 |
sysctl | examine or modify kernel parameters | 591 |
truncate | truncates a file | 472 |
unlink | removes a file | 451 |
wait | waits for a child process | 480 |
write | writes bytes from a buffer to a file | 448 |
