HP 3000 Manuals HP 3000 Manuals
access
Determines the accessibility of a file.
Syntax
#include <unistd.h>
int access (char *fname, int amode);
Parameters
fname A pointer to a character string containing a file name.
amode An integer indicating whether read or write access to a
file is requested.
Return Values
0 Requested access is permitted.
-1 Requested access is denied; errno is set to one of the
following values:
ENOENT Read, write, or execute (search) permission
is requested for a null path name, or the
named file does not exist.
EACCES The requested access is denied.
ESYSERR A call to a system intrinsic failed.
Description
The access function checks for read or read/write access for the file
referenced by fname. The bit pattern contained in amode is constructed
as follows:
04 Read access
02 Write access
Other values of amode are not supported.
[REV BEG]
The access function is not supported in the POSIX/iX library. If called,
access() returns a -1 and sets errno to ENOSYS.[REV END]