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libssh2/docs/libssh2_sftp_statvfs.md
Viktor Szakats b889b39945 docs: convert man page sources to "curldown" format
To render in Git webviews as-is, to make it easier to edit, verify,
and to sync up with curl.

- add options to not build the `.3` man pages:
  - autotools: `--disable-docs`
  - cmake: `LIBSSH2_BUILD_DOCS=OFF`
- building `.3` man pages requires Perl after this patch.
- drop `mansyntax` and the shell / `grep` / GNU `man` tool requirements with it.
- scripts and most logic were copied from curl.
- add `cd2nroff` from curl, with edits to relax curl-specific checks.
- used `nroff2cd` (from curl) to convert from `.3` to `.md`. Then
  manually fixed copyrights, inline function references and a couple
  of other things.

Credits-to: Daniel Stenberg

Ref: eefcc1bda4
Ref: https://github.com/curl/curl/pull/12730
Ref: https://github.com/libssh2/www/issues/25#issuecomment-3289431671

Closes #1660
2025-10-09 04:05:38 +02:00

2.7 KiB

c, SPDX-License-Identifier, Title, Section, Source, See-also
c SPDX-License-Identifier Title Section Source See-also
Copyright (C) The libssh2 project and its contributors. BSD-3-Clause libssh2_sftp_statvfs 3 libssh2
libssh2_sftp_init(3)
libssh2_sftp_open_ex(3)

NAME

libssh2_sftp_statvfs, libssh2_sftp_fstatvfs - get file system statistics

SYNOPSIS

#include <libssh2.h>
#include <libssh2_sftp.h>

int
libssh2_sftp_statvfs(LIBSSH2_SFTP *sftp, const char *path,
                     size_t path_len, LIBSSH2_SFTP_STATVFS *st);

int
libssh2_sftp_fstatvfs(LIBSSH2_SFTP_HANDLE *handle,
                      LIBSSH2_SFTP_STATVFS *st)

DESCRIPTION

These functions provide statvfs(2)-like operations and require statvfs@openssh.com and fstatvfs@openssh.com extension support on the server.

sftp - SFTP instance as returned by libssh2_sftp_init(3)

handle - SFTP File Handle as returned by libssh2_sftp_open_ex(3)

path - full path of any file within the mounted file system.

path_len - length of the full path.

st - Pointer to a LIBSSH2_SFTP_STATVFS structure to place file system statistics into.

DATA TYPES

LIBSSH2_SFTP_STATVFS is a typedefed struct that is defined as below

struct _LIBSSH2_SFTP_STATVFS {
    libssh2_uint64_t  f_bsize;    /* file system block size */
    libssh2_uint64_t  f_frsize;   /* fragment size */
    libssh2_uint64_t  f_blocks;   /* size of fs in f_frsize units */
    libssh2_uint64_t  f_bfree;    /* # free blocks */
    libssh2_uint64_t  f_bavail;   /* # free blocks for non-root */
    libssh2_uint64_t  f_files;    /* # inodes */
    libssh2_uint64_t  f_ffree;    /* # free inodes */
    libssh2_uint64_t  f_favail;   /* # free inodes for non-root */
    libssh2_uint64_t  f_fsid;     /* file system ID */
    libssh2_uint64_t  f_flag;     /* mount flags */
    libssh2_uint64_t  f_namemax;  /* maximum filename length */
};

It is unspecified whether all members of the returned struct have meaningful values on all file systems.

The field f_flag is a bit mask. Bits are defined as follows:

LIBSSH2_SFTP_ST_RDONLY

Read-only file system.

LIBSSH2_SFTP_ST_NOSUID

Set-user-ID/set-group-ID bits are ignored by exec(3).

RETURN VALUE

Returns 0 on success or negative on failure. If used in non-blocking mode, it returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it is not really a failure per se.

ERRORS

LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.

LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

LIBSSH2_ERROR_SOCKET_TIMEOUT -

LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid SFTP protocol response was received on the socket, or an SFTP operation caused an errorcode to be returned by the server.

AVAILABILITY

Added in libssh2 1.2.6