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ba47566863
curl/lib/version.c
Thomas Guillem 2ed1012564
curl_version_info: add CURL_VERSION_THREADSAFE_INIT 
This flag can be used to make sure that curl_global_init() is
thread-safe.

This can be useful for libraries that can't control what other
dependencies are doing with Curl.

Closes #8680
2022-06-07 13:34:03 +02:00

590 lines
13 KiB
C
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "vtls/vtls.h"
#include "http2.h"
#include "vssh/ssh.h"
#include "quic.h"
#include "curl_printf.h"
#include "easy_lock.h"
#ifdef USE_ARES
# if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
defined(WIN32)
# define CARES_STATICLIB
# endif
# include <ares.h>
#endif
#ifdef USE_LIBIDN2
#include <idn2.h>
#endif
#ifdef USE_LIBPSL
#include <libpsl.h>
#endif
#ifdef USE_LIBRTMP
#include <librtmp/rtmp.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#ifdef HAVE_BROTLI
#include <brotli/decode.h>
#endif
#ifdef HAVE_ZSTD
#include <zstd.h>
#endif
#ifdef USE_GSASL
#include <gsasl.h>
#endif
#ifdef USE_OPENLDAP
#include <ldap.h>
#endif
#ifdef HAVE_BROTLI
static void brotli_version(char *buf, size_t bufsz)
{
uint32_t brotli_version = BrotliDecoderVersion();
unsigned int major = brotli_version >> 24;
unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12;
unsigned int patch = brotli_version & 0x00000FFF;
(void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
}
#endif
#ifdef HAVE_ZSTD
static void zstd_version(char *buf, size_t bufsz)
{
unsigned long zstd_version = (unsigned long)ZSTD_versionNumber();
unsigned int major = (unsigned int)(zstd_version / (100 * 100));
unsigned int minor = (unsigned int)((zstd_version -
(major * 100 * 100)) / 100);
unsigned int patch = (unsigned int)(zstd_version -
(major * 100 * 100) - (minor * 100));
(void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
}
#endif
/*
* curl_version() returns a pointer to a static buffer.
*
* It is implemented to work multi-threaded by making sure repeated invokes
* generate the exact same string and never write any temporary data like
* zeros in the data.
*/
#define VERSION_PARTS 16 /* number of substrings we can concatenate */
char *curl_version(void)
{
static char out[300];
char *outp;
size_t outlen;
const char *src[VERSION_PARTS];
#ifdef USE_SSL
char ssl_version[200];
#endif
#ifdef HAVE_LIBZ
char z_version[40];
#endif
#ifdef HAVE_BROTLI
char br_version[40] = "brotli/";
#endif
#ifdef HAVE_ZSTD
char zst_version[40] = "zstd/";
#endif
#ifdef USE_ARES
char cares_version[40];
#endif
#if defined(USE_LIBIDN2)
char idn_version[40];
#endif
#ifdef USE_LIBPSL
char psl_version[40];
#endif
#ifdef USE_SSH
char ssh_version[40];
#endif
#ifdef USE_NGHTTP2
char h2_version[40];
#endif
#ifdef ENABLE_QUIC
char h3_version[40];
#endif
#ifdef USE_LIBRTMP
char rtmp_version[40];
#endif
#ifdef USE_HYPER
char hyper_buf[30];
#endif
#ifdef USE_GSASL
char gsasl_buf[30];
#endif
#ifdef USE_OPENLDAP
char ldap_buf[30];
#endif
int i = 0;
int j;
#ifdef DEBUGBUILD
/* Override version string when environment variable CURL_VERSION is set */
const char *debugversion = getenv("CURL_VERSION");
if(debugversion) {
strncpy(out, debugversion, sizeof(out)-1);
out[sizeof(out)-1] = '\0';
return out;
}
#endif
src[i++] = LIBCURL_NAME "/" LIBCURL_VERSION;
#ifdef USE_SSL
Curl_ssl_version(ssl_version, sizeof(ssl_version));
src[i++] = ssl_version;
#endif
#ifdef HAVE_LIBZ
msnprintf(z_version, sizeof(z_version), "zlib/%s", zlibVersion());
src[i++] = z_version;
#endif
#ifdef HAVE_BROTLI
brotli_version(&br_version[7], sizeof(br_version) - 7);
src[i++] = br_version;
#endif
#ifdef HAVE_ZSTD
zstd_version(&zst_version[5], sizeof(zst_version) - 5);
src[i++] = zst_version;
#endif
#ifdef USE_ARES
msnprintf(cares_version, sizeof(cares_version),
"c-ares/%s", ares_version(NULL));
src[i++] = cares_version;
#endif
#ifdef USE_LIBIDN2
msnprintf(idn_version, sizeof(idn_version),
"libidn2/%s", idn2_check_version(NULL));
src[i++] = idn_version;
#elif defined(USE_WIN32_IDN)
src[i++] = (char *)"WinIDN";
#endif
#ifdef USE_LIBPSL
msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version());
src[i++] = psl_version;
#endif
#ifdef USE_SSH
Curl_ssh_version(ssh_version, sizeof(ssh_version));
src[i++] = ssh_version;
#endif
#ifdef USE_NGHTTP2
Curl_http2_ver(h2_version, sizeof(h2_version));
src[i++] = h2_version;
#endif
#ifdef ENABLE_QUIC
Curl_quic_ver(h3_version, sizeof(h3_version));
src[i++] = h3_version;
#endif
#ifdef USE_LIBRTMP
{
char suff[2];
if(RTMP_LIB_VERSION & 0xff) {
suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
suff[1] = '\0';
}
else
suff[0] = '\0';
msnprintf(rtmp_version, sizeof(rtmp_version), "librtmp/%d.%d%s",
RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
suff);
src[i++] = rtmp_version;
}
#endif
#ifdef USE_HYPER
msnprintf(hyper_buf, sizeof(hyper_buf), "Hyper/%s", hyper_version());
src[i++] = hyper_buf;
#endif
#ifdef USE_GSASL
msnprintf(gsasl_buf, sizeof(gsasl_buf), "libgsasl/%s",
gsasl_check_version(NULL));
src[i++] = gsasl_buf;
#endif
#ifdef USE_OPENLDAP
{
LDAPAPIInfo api;
api.ldapai_info_version = LDAP_API_INFO_VERSION;
if(ldap_get_option(NULL, LDAP_OPT_API_INFO, &api) == LDAP_OPT_SUCCESS) {
unsigned int patch = api.ldapai_vendor_version % 100;
unsigned int major = api.ldapai_vendor_version / 10000;
unsigned int minor =
((api.ldapai_vendor_version - major * 10000) - patch) / 100;
msnprintf(ldap_buf, sizeof(ldap_buf), "%s/%u.%u.%u",
api.ldapai_vendor_name, major, minor, patch);
src[i++] = ldap_buf;
ldap_memfree(api.ldapai_vendor_name);
ber_memvfree((void **)api.ldapai_extensions);
}
}
#endif
DEBUGASSERT(i <= VERSION_PARTS);
outp = &out[0];
outlen = sizeof(out);
for(j = 0; j < i; j++) {
size_t n = strlen(src[j]);
/* we need room for a space, the string and the final zero */
if(outlen <= (n + 2))
break;
if(j) {
/* prepend a space if not the first */
*outp++ = ' ';
outlen--;
}
memcpy(outp, src[j], n);
outp += n;
outlen -= n;
}
*outp = 0;
return out;
}
/* data for curl_version_info
Keep the list sorted alphabetically. It is also written so that each
protocol line has its own #if line to make things easier on the eye.
*/
static const char * const protocols[] = {
#ifndef CURL_DISABLE_DICT
"dict",
#endif
#ifndef CURL_DISABLE_FILE
"file",
#endif
#ifndef CURL_DISABLE_FTP
"ftp",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
"ftps",
#endif
#ifndef CURL_DISABLE_GOPHER
"gopher",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_GOPHER)
"gophers",
#endif
#ifndef CURL_DISABLE_HTTP
"http",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
"https",
#endif
#ifndef CURL_DISABLE_IMAP
"imap",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
"imaps",
#endif
#ifndef CURL_DISABLE_LDAP
"ldap",
#if !defined(CURL_DISABLE_LDAPS) && \
((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
(!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
"ldaps",
#endif
#endif
#ifndef CURL_DISABLE_MQTT
"mqtt",
#endif
#ifndef CURL_DISABLE_POP3
"pop3",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
"pop3s",
#endif
#ifdef USE_LIBRTMP
"rtmp",
#endif
#ifndef CURL_DISABLE_RTSP
"rtsp",
#endif
#if defined(USE_SSH) && !defined(USE_WOLFSSH)
"scp",
#endif
#ifdef USE_SSH
"sftp",
#endif
#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \
(SIZEOF_CURL_OFF_T > 4)
"smb",
# ifdef USE_SSL
"smbs",
# endif
#endif
#ifndef CURL_DISABLE_SMTP
"smtp",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
"smtps",
#endif
#ifndef CURL_DISABLE_TELNET
"telnet",
#endif
#ifndef CURL_DISABLE_TFTP
"tftp",
#endif
NULL
};
static curl_version_info_data version_info = {
CURLVERSION_NOW,
LIBCURL_VERSION,
LIBCURL_VERSION_NUM,
OS, /* as found by configure or set by hand at build-time */
0 /* features is 0 by default */
#ifdef ENABLE_IPV6
| CURL_VERSION_IPV6
#endif
#ifdef USE_SSL
| CURL_VERSION_SSL
#endif
#ifdef USE_NTLM
| CURL_VERSION_NTLM
#endif
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
| CURL_VERSION_NTLM_WB
#endif
#ifdef USE_SPNEGO
| CURL_VERSION_SPNEGO
#endif
#ifdef USE_KERBEROS5
| CURL_VERSION_KERBEROS5
#endif
#ifdef HAVE_GSSAPI
| CURL_VERSION_GSSAPI
#endif
#ifdef USE_WINDOWS_SSPI
| CURL_VERSION_SSPI
#endif
#ifdef HAVE_LIBZ
| CURL_VERSION_LIBZ
#endif
#ifdef DEBUGBUILD
| CURL_VERSION_DEBUG
#endif
#ifdef CURLDEBUG
| CURL_VERSION_CURLDEBUG
#endif
#ifdef CURLRES_ASYNCH
| CURL_VERSION_ASYNCHDNS
#endif
#if (SIZEOF_CURL_OFF_T > 4) && \
( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
| CURL_VERSION_LARGEFILE
#endif
#if defined(WIN32) && defined(UNICODE) && defined(_UNICODE)
| CURL_VERSION_UNICODE
#endif
#if defined(USE_TLS_SRP)
| CURL_VERSION_TLSAUTH_SRP
#endif
#if defined(USE_NGHTTP2) || defined(USE_HYPER)
| CURL_VERSION_HTTP2
#endif
#if defined(ENABLE_QUIC)
| CURL_VERSION_HTTP3
#endif
#if defined(USE_UNIX_SOCKETS)
| CURL_VERSION_UNIX_SOCKETS
#endif
#if defined(USE_LIBPSL)
| CURL_VERSION_PSL
#endif
#if defined(CURL_WITH_MULTI_SSL)
| CURL_VERSION_MULTI_SSL
#endif
#if defined(HAVE_BROTLI)
| CURL_VERSION_BROTLI
#endif
#if defined(HAVE_ZSTD)
| CURL_VERSION_ZSTD
#endif
#ifndef CURL_DISABLE_ALTSVC
| CURL_VERSION_ALTSVC
#endif
#ifndef CURL_DISABLE_HSTS
| CURL_VERSION_HSTS
#endif
#if defined(USE_GSASL)
| CURL_VERSION_GSASL
#endif
#if defined(GLOBAL_INIT_IS_THREADSAFE)
| CURL_VERSION_THREADSAFE_INIT
#endif
,
NULL, /* ssl_version */
0, /* ssl_version_num, this is kept at zero */
NULL, /* zlib_version */
protocols,
NULL, /* c-ares version */
0, /* c-ares version numerical */
NULL, /* libidn version */
0, /* iconv version */
NULL, /* ssh lib version */
0, /* brotli_ver_num */
NULL, /* brotli version */
0, /* nghttp2 version number */
NULL, /* nghttp2 version string */
NULL, /* quic library string */
#ifdef CURL_CA_BUNDLE
CURL_CA_BUNDLE, /* cainfo */
#else
NULL,
#endif
#ifdef CURL_CA_PATH
CURL_CA_PATH, /* capath */
#else
NULL,
#endif
0, /* zstd_ver_num */
NULL, /* zstd version */
NULL, /* Hyper version */
NULL /* gsasl version */
};
curl_version_info_data *curl_version_info(CURLversion stamp)
{
#if defined(USE_SSH)
static char ssh_buffer[80];
#endif
#ifdef USE_SSL
#ifdef CURL_WITH_MULTI_SSL
static char ssl_buffer[200];
#else
static char ssl_buffer[80];
#endif
#endif
#ifdef HAVE_BROTLI
static char brotli_buffer[80];
#endif
#ifdef HAVE_ZSTD
static char zstd_buffer[80];
#endif
#ifdef USE_SSL
Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
version_info.ssl_version = ssl_buffer;
#ifndef CURL_DISABLE_PROXY
if(Curl_ssl->supports & SSLSUPP_HTTPS_PROXY)
version_info.features |= CURL_VERSION_HTTPS_PROXY;
else
version_info.features &= ~CURL_VERSION_HTTPS_PROXY;
#endif
#endif
#ifdef HAVE_LIBZ
version_info.libz_version = zlibVersion();
/* libz left NULL if non-existing */
#endif
#ifdef USE_ARES
{
int aresnum;
version_info.ares = ares_version(&aresnum);
version_info.ares_num = aresnum;
}
#endif
#ifdef USE_LIBIDN2
/* This returns a version string if we use the given version or later,
otherwise it returns NULL */
version_info.libidn = idn2_check_version(IDN2_VERSION);
if(version_info.libidn)
version_info.features |= CURL_VERSION_IDN;
#elif defined(USE_WIN32_IDN)
version_info.features |= CURL_VERSION_IDN;
#endif
#if defined(USE_SSH)
Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer));
version_info.libssh_version = ssh_buffer;
#endif
#ifdef HAVE_BROTLI
version_info.brotli_ver_num = BrotliDecoderVersion();
brotli_version(brotli_buffer, sizeof(brotli_buffer));
version_info.brotli_version = brotli_buffer;
#endif
#ifdef HAVE_ZSTD
version_info.zstd_ver_num = (unsigned int)ZSTD_versionNumber();
zstd_version(zstd_buffer, sizeof(zstd_buffer));
version_info.zstd_version = zstd_buffer;
#endif
#ifdef USE_NGHTTP2
{
nghttp2_info *h2 = nghttp2_version(0);
version_info.nghttp2_ver_num = h2->version_num;
version_info.nghttp2_version = h2->version_str;
}
#endif
#ifdef ENABLE_QUIC
{
static char quicbuffer[80];
Curl_quic_ver(quicbuffer, sizeof(quicbuffer));
version_info.quic_version = quicbuffer;
}
#endif
#ifdef USE_HYPER
{
static char hyper_buffer[30];
msnprintf(hyper_buffer, sizeof(hyper_buffer), "Hyper/%s", hyper_version());
version_info.hyper_version = hyper_buffer;
}
#endif
#ifdef USE_GSASL
{
version_info.gsasl_version = gsasl_check_version(NULL);
}
#endif
(void)stamp; /* avoid compiler warnings, we don't use this */
return &version_info;
}
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