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Returns configuration variable for file descriptor. Syntax | |
#include <unistd.h>
long fpathconf(int fildes, int name);
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Parameters | |
- fildes
is an open file descriptor for the file or directory of
which you want to determine the configuration
variables.
- name
is a symbol indicating the variable, the value of which
you want to determine.
Return Values | |
- variable value
fpathconf() lets you determine the value of a
configuration variable associated with a particular file
descriptor. If fpathconf() can determine the value of the
requested variable, it returns that value as its result.
- -1
If fpathconf() cannot determine the value of the specified variable, it returns -1 and sets errno
fpathconf() works exactly like pathconf(), except that it
takes a file descriptor as an argument rather than a path
name. For further details, see pathconf().
Errors | |
If an error occurs, errno is set to one of the following values: | EBADF | CAUSE | fildes was not a valid file descriptor. | | | ACTION | Specify a valid file descriptor. | | EINVAL | CAUSE | Name was not a valid variable code, or the given
variable cannot be associated with the specified
file. | | | ACTION | Specify a valid variable code. |
See Also | |
pathconf()
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