|MKFIFOAT(3)||Linux Programmer's Manual||MKFIFOAT(3)|
NAMEmkfifoat - make a FIFO (named pipe) relative to a directory file descriptor
int mkfifoat(int dirfd , const char * pathname , mode_t mode );
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
- Since glibc 2.10:
- _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
DESCRIPTIONThe mkfifoat() system call operates in exactly the same way as mkfifo(3), except for the differences described in this manual page.
RETURN VALUEOn success, mkfifoat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORSThe same errors that occur for mkfifo(3) can also occur for mkfifoat(). The following additional errors can occur for mkfifoat():
- dirfd is not a valid file descriptor.
- pathname is a relative path and dirfd is a file descriptor referring to a file other than a directory.
VERSIONSmkfifoat() was added to glibc in version 2.4. It is implemented using mknod(2), available on Linux since kernel 2.6.16.
NOTESSee openat(2) for an explanation of the need for mkfifoat().
SEE ALSOopenat(2), mkfifo(3), path_resolution(7)
COLOPHONThis page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.