RENAMEATSection: Linux Programmer's Manual (2)
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NAMErenameat - rename a file relative to directory file descriptors
#define _ATFILE_SOURCE #include <stdio.h> int renameat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
DESCRIPTIONThe renameat() system call operates in exactly the same way as rename(2), except for the differences described in this manual page.
If the pathname given in oldpath is relative, then it is interpreted relative to the directory referred to by the file descriptor olddirfd (rather than relative to the current working directory of the calling process, as is done by rename(2) for a relative pathname).
If oldpath is relative and olddirfd is the special value AT_FDCWD, then oldpath is interpreted relative to the current working directory of the calling process (like rename(2)).
If oldpath is absolute, then olddirfd is ignored.
RETURN VALUEOn success, renameat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORSThe same errors that occur for rename(2) can also occur for renameat(). The following additional errors can occur for renameat():
- olddirfd or newdirfd is not a valid file descriptor.
- oldpath is relative and olddirfd is a file descriptor referring to a file other than a directory; or similar for newpath and newdirfd
VERSIONSrenameat() was added to Linux in kernel 2.6.16.
CONFORMING TOThis system call is non-standard but is proposed for inclusion in a future revision of POSIX.1.
NOTESSee openat(2) for an explanation of the need for renameat().
SEE ALSOopenat(2), rename(2), path_resolution(7)