closefrom — delete open file descriptors

The closefrom() system call deletes all open file descriptors greater than or equal to lowfd from the per-process object reference table. Any errors encountered while closing file descriptors are ignored.

The closefrom() function first appeared in Solaris 9, OpenBSD 3.5, DragonFly 1.2, NetBSD 3.0, FreeBSD 8.0 and glibc 2.34. Debian June 12, 2009 closefrom(3bsd)

Utility functions from BSD systems (libbsd, -lbsd)

closefrom — delete open file descriptors

close(2)

closefrom() is a BSD and Solaris extension.

#include<unistd.h> (See libbsd(7) for include usage.) voidclosefrom(intlowfd);