Manual browser: dirname(3)
|DIRNAME(3)||Library Functions Manual||DIRNAME(3)|
NAMEdirname — report the parent directory name of a file pathname
LIBRARYStandard C Library (libc, -lc)
DESCRIPTIONThe dirname() function takes a pointer to a character string that contains a pathname, path, and returns a pointer to a string that is a pathname of the parent directory of path. Trailing ‘/’ characters in path are not counted as part of the path.
If path does not contain a ‘/’, then dirname() returns a pointer to the string “.”.
If path is a null pointer or points to an empty string, dirname() returns a pointer to the string “.”.
RETURN VALUESThe dirname() function returns a pointer to a string that is the parent directory of path.
- X/Open Portability Guide Issue 4, Version 2 (“XPG4.2”)
- IEEE Std 1003.1-2001 (“POSIX.1”)
BUGSIf the length of the result is longer than PATH_MAX bytes (including the terminating nul), the result will be truncated.
The dirname() function returns a pointer to static storage that may be overwritten by subsequent calls to dirname(). This is not strictly a bug; it is explicitly allowed by IEEE Std 1003.1-2001 (“POSIX.1”).
|May 10, 2008||NetBSD 7.0|