mirror of https://github.com/libssh2/libssh2.git synced 2025-10-24 14:53:03 +03:00

Files

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

1.3 KiB

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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_version	3	libssh2

NAME

libssh2_version - return the libssh2 version number

SYNOPSIS

#include <libssh2.h>

const char *
libssh2_version(int required_version);

DESCRIPTION

If required_version is lower than or equal to the version number of the libssh2 in use, the version number of libssh2 is returned as a pointer to a zero terminated string.

The required_version should be the version number as constructed by the LIBSSH2_VERSION_NUM define in the libssh2.h public header file, which is a 24 bit number in the 0xMMmmpp format. MM for major, mm for minor and pp for patch number.

RETURN VALUE

The version number of libssh2 is returned as a pointer to a zero terminated string or NULL if the required_version is not fulfilled.

EXAMPLE

To make sure you run with the correct libssh2 version:

if(!libssh2_version(LIBSSH2_VERSION_NUM)) {
  fprintf(stderr, \&"Runtime libssh2 version too old.\&");
  return -1;  /* return error */
}

Unconditionally get the version number:

printf(\&"libssh2 version: %s\&", libssh2_version(0));

AVAILABILITY

This function was added in libssh2 1.1, in previous versions there way no way to extract this info in run-time.

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