READLINK(2) RISC/os Reference Manual READLINK(2)
NAME
readlink - read value of a symbolic link
SYNOPSIS
For -systype sysv and -systype bsd43:
cc = readlink(path, buf, bufsiz)
int cc;
char *path, *buf;
int bufsiz;
DESCRIPTION
readlink places the contents of the symbolic link path in
the buffer buf, which has size bufsiz. The contents of the
link are not null terminated when returned.
RETURN VALUE
The call returns the count of characters placed in the
buffer if it succeeds, or a -1 if an error occurs, placing
the error code in the global variable errno.
ERRORS
readlink will fail and the file mode will be unchanged if:
[ENOTDIR] A component of the path prefix is not a
directory.
[EINVAL] The pathname contains a character with
the high-order bit set.
[ENAMETOOLONG] A component of a pathname exceeded 255
characters, or an entire path name
exceeded 1023 characters.
[ENOENT] The named file does not exist.
[EACCES] Search permission is denied for a com-
ponent of the path prefix.
[ELOOP] Too many symbolic links were encountered
in translating the pathname.
[EINVAL] The named file is not a symbolic link.
[EIO] An I/O error occurred while reading from
the file system.
[EFAULT] buf extends outside the process's allo-
cated address space.
SEE ALSO
stat(2), symlink(2).
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READLINK(2) RISC/os Reference Manual READLINK(2)
NOTE
When these routines are used in a program which is compiled
in -systype sysv, they are not resolved by libc.a. See
intro(3-SysV) for more information.
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