80 строки
2.7 KiB
Groff
80 строки
2.7 KiB
Groff
.TH libssh2_sftp_symlink_ex 3 "1 Jun 2007" "libssh2 0.15" "libssh2 manual"
|
|
.SH NAME
|
|
libssh2_sftp_symlink_ex - read or set a symbolic link
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <libssh2.h>
|
|
#include <libssh2_sftp.h>
|
|
|
|
int
|
|
libssh2_sftp_symlink_ex(LIBSSH2_SFTP *sftp, const char *path,
|
|
unsigned int path_len, char *target,
|
|
unsigned int target_len, int link_type);
|
|
.SH DESCRIPTION
|
|
Create a symlink or read out symlink information from the remote side.
|
|
|
|
\fIsftp\fP - SFTP instance as returned by
|
|
.BR libssh2_sftp_init(3)
|
|
|
|
\fIpath\fP - Remote filesystem object to create a symlink from or resolve.
|
|
|
|
\fIpath_len\fP - Length of the name of the remote filesystem object to
|
|
create a symlink from or resolve.
|
|
|
|
\fItarget\fP - a pointer to a buffer. The buffer has different uses depending
|
|
what the \fIlink_type\fP argument is set to.
|
|
.br
|
|
\fBLIBSSH2_SFTP_SYMLINK\fP: Remote filesystem object to link to.
|
|
.br
|
|
\fBLIBSSH2_SFTP_READLINK\fP: Pre-allocated buffer to resolve symlink target
|
|
into.
|
|
.br
|
|
\fBLIBSSH2_SFTP_REALPATH\fP: Pre-allocated buffer to resolve realpath target
|
|
into.
|
|
|
|
\fItarget_len\fP - Length of the name of the remote filesystem target object.
|
|
|
|
\fIlink_type\fP - One of the three previously mentioned constants which
|
|
determines the resulting behavior of this function.
|
|
|
|
These are convenience macros:
|
|
|
|
.BR libssh2_sftp_symlink(3)
|
|
: Create a symbolic link between two filesystem objects.
|
|
.br
|
|
.BR libssh2_sftp_readlink(3)
|
|
: Resolve a symbolic link filesystem object to its next target.
|
|
.br
|
|
.BR libssh2_sftp_realpath(3)
|
|
: Resolve a complex, relative, or symlinked filepath to its effective target.
|
|
.SH RETURN VALUE
|
|
When using LIBSSH2_SFTP_SYMLINK, this function returns 0 on success or negative
|
|
on failure.
|
|
|
|
When using LIBSSH2_SFTP_READLINK or LIBSSH2_SFTP_REALPATH, it returns the
|
|
number of bytes it copied to the target buffer (not including the terminating
|
|
zero) or negative on failure.
|
|
|
|
It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While
|
|
LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se.
|
|
|
|
From 1.2.8, LIBSSH2_ERROR_BUFFER_TOO_SMALL is returned if the given 'target'
|
|
buffer is too small to fit the requested object name.
|
|
.SH BUG
|
|
Passing in a too small buffer when receiving data only results in libssh2
|
|
1.2.7 or earlier to not copy the entire data amount, and it is not possible
|
|
for the application to tell when it happens!
|
|
.SH ERRORS
|
|
\fILIBSSH2_ERROR_ALLOC\fP - An internal memory allocation call failed.
|
|
|
|
\fILIBSSH2_ERROR_SOCKET_SEND\fP - Unable to send data on socket.
|
|
|
|
\fILIBSSH2_ERROR_SOCKET_TIMEOUT\fP -
|
|
|
|
\fILIBSSH2_ERROR_SFTP_PROTOCOL\fP - An invalid SFTP protocol response was
|
|
received on the socket, or an SFTP operation caused an errorcode to
|
|
be returned by the server.
|
|
|
|
.SH SEE ALSO
|
|
.BR libssh2_sftp_init(3)
|