runtests: fix detection of TLS backends

Built-in TLS backends are detected at test time by scanning for their
names in the version string line returned by the cli tool: as this line
may also list the libssh configuration that mentions its own backend,
the curl backend may be wrongly determined.

In example, if the version line contains "libssh/0.10.4/openssl/zlib",
OpenSSL is detected as a curl-configured backend even if not.

This fix requires the backend names to appear as full words preceded by
spacing in the version line to be recognized as curl TLS backends.

Closes #10236

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 67e42b77e44b65f1d0ccd007d815f30be20ddfd6..71644ad18e8556083a84bb05d8d27f576ec5f832 100755 (executable)
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -3128,45 +3128,45 @@ sub checksystem {
                 $has_win32 = 1;
                 $has_mingw = 1 if ($curl =~ /-pc-mingw32/);
             }
-           if ($libcurl =~ /(winssl|schannel)/i) {
+           if ($libcurl =~ /\s(winssl|schannel)\b/i) {
                $has_schannel=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /openssl/i) {
+           elsif ($libcurl =~ /\sopenssl\b/i) {
                $has_openssl=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /gnutls/i) {
+           elsif ($libcurl =~ /\sgnutls\b/i) {
                $has_gnutls=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /rustls-ffi/i) {
+           elsif ($libcurl =~ /\srustls-ffi\b/i) {
                $has_rustls=1;
            }
-           elsif ($libcurl =~ /nss/i) {
+           elsif ($libcurl =~ /\snss\b/i) {
                $has_nss=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /wolfssl/i) {
+           elsif ($libcurl =~ /\swolfssl\b/i) {
                $has_wolfssl=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /bearssl/i) {
+           elsif ($libcurl =~ /\sbearssl\b/i) {
                $has_bearssl=1;
            }
-           elsif ($libcurl =~ /securetransport/i) {
+           elsif ($libcurl =~ /\ssecuretransport\b/i) {
                $has_sectransp=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /BoringSSL/i) {
+           elsif ($libcurl =~ /\sBoringSSL\b/i) {
                $has_boringssl=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /libressl/i) {
+           elsif ($libcurl =~ /\slibressl\b/i) {
                $has_libressl=1;
                $has_sslpinning=1;
            }
-           elsif ($libcurl =~ /mbedTLS/i) {
+           elsif ($libcurl =~ /\smbedTLS\b/i) {
                $has_mbedtls=1;
                $has_sslpinning=1;
            }