systems. Most of these functions are declared in the <unistd.h> header, but some are in the <fcntl.h> header instead. open() creat() socket() accept() socketpair()...

In the C and C++ programming languages, unistd.h is the name of the header file that provides access to the POSIX operating system API. It is defined...

<sys/types.h> #include <sys/mman.h> #include <err.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> /* This...

Examples include fcntl.h and unistd.h. A number of other groups are using other nonstandard headers – the GNU C Library has alloca.h, and OpenVMS has...

#include <netdb.h> #include <sys/select.h> #include <fcntl.h> #include <unistd.h> #include <err.h> #include <errno.h> #define PORT "9421" /* function prototypes...

<assert.h> <complex.h> <ctype.h> <dirent.h> <dlfcn.h> <errno.h> <fcntl.h> <fenv.h> <float.h> <inttypes.h> <iso646.h> <limits.h> <locale.h> <math.h> <pthread...

This argument formed by OR'ing together optional parameters and (from <fcntl.h>) one of: O_RDONLY, O_RDWR and O_WRONLY Option parameters include: O_APPEND...

Wikipedia article on can4linux */ #include <stdio.h> #include <fcntl.h> #include <unistd.h> #include <can4linux.h> int main(int argc,char **argv) { int fd; canmsg_t...

alternative way to duplicate a file descriptor to an unspecified place is the fcntl system call with F_DUPFD command. The latter places the copy into newfd...

socket is typically set to blocking or non-blocking mode using the functions fcntl and ioctl. The operating system does not release the resources allocated...

(specified with the O_NONBLOCK flag on the file descriptor via open() or fcntl()), data "are available for reading". In canonical mode, data are accumulated...