indirect system call NAME syscall - indirect system call LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/syscall.h> /* Definition of SYS_* constants */ #include <u…perform a command on an extended BPF map or program NAME bpf - perform a command on an extended BPF map or program SYNOPSIS #include <linux/bpf.h> int bpf(int cmd , union bpf_attr …set file mode creation mask NAME umask - set file mode creation mask LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/stat.h> mode_t umask(mode_t mask ); DESCRIPTIO…Linux system calls NAME syscalls - Linux system calls SYNOPSIS Linux system calls. DESCRIPTION The system call is the fundamental interface between an application and the Linux ker…synchronous I/O multiplexing NAME select, pselect - synchronous I/O multiplexing LIBRARY Standard C library ( libc , -lc ) SYNOPSIS See select (2) DESCRIPTION The select () and pse…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…check user's permissions for a file NAME access, faccessat, faccessat2 - check user's permissions for a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> …check user's permissions for a file NAME access, faccessat, faccessat2 - check user's permissions for a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> …check user's permissions for a file NAME access, faccessat, faccessat2 - check user's permissions for a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> …open and possibly create a file NAME open, openat, creat - open and possibly create a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int open(const char…open and possibly create a file NAME open, openat, creat - open and possibly create a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int open(const char…open and possibly create a file NAME open, openat, creat - open and possibly create a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int open(const char…duplicate a file descriptor NAME dup, dup2, dup3 - duplicate a file descriptor LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int dup(int oldfd ); int dup2(…duplicate a file descriptor NAME dup, dup2, dup3 - duplicate a file descriptor LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int dup(int oldfd ); int dup2(…duplicate a file descriptor NAME dup, dup2, dup3 - duplicate a file descriptor LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int dup(int oldfd ); int dup2(…close all file descriptors in a given range NAME close_range - close all file descriptors in a given range LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #define _GNU_SOURCE /*…submit asynchronous I/O blocks for processing NAME io_submit - submit asynchronous I/O blocks for processing LIBRARY Standard C library ( libc , -lc ) Alternatively, Asynchronous I…synchronous I/O multiplexing NAME select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO, fd_set - synchronous I/O multiplexing LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #incl…