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-rw-r--r--Documentation/config.txt5
-rw-r--r--http.c35
2 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt
index eb66a11975..c569e72859 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2236,6 +2236,11 @@ http.sslCAPath::
with when fetching or pushing over HTTPS. Can be overridden
by the `GIT_SSL_CAPATH` environment variable.
+http.sslBackend::
+ Name of the SSL backend to use (e.g. "openssl" or "schannel").
+ This option is ignored if cURL lacks support for choosing the SSL
+ backend at runtime.
+
http.pinnedpubkey::
Public key of the https service. It may either be the filename of
a PEM or DER encoded public key file or a string starting with
diff --git a/http.c b/http.c
index 4162860ee3..fedfb2a207 100644
--- a/http.c
+++ b/http.c
@@ -155,6 +155,8 @@ static struct active_request_slot *active_queue_head;
static char *cached_accept_language;
+static char *http_ssl_backend;
+
size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
{
size_t size = eltsize * nmemb;
@@ -302,6 +304,12 @@ static int http_options(const char *var, const char *value, void *cb)
curl_ssl_try = git_config_bool(var, value);
return 0;
}
+ if (!strcmp("http.sslbackend", var)) {
+ free(http_ssl_backend);
+ http_ssl_backend = xstrdup_or_null(value);
+ return 0;
+ }
+
if (!strcmp("http.minsessions", var)) {
min_curl_sessions = git_config_int(var, value);
#ifndef USE_CURL_MULTI
@@ -995,6 +1003,33 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
git_config(urlmatch_config_entry, &config);
free(normalized_url);
+#if LIBCURL_VERSION_NUM >= 0x073800
+ if (http_ssl_backend) {
+ const curl_ssl_backend **backends;
+ struct strbuf buf = STRBUF_INIT;
+ int i;
+
+ switch (curl_global_sslset(-1, http_ssl_backend, &backends)) {
+ case CURLSSLSET_UNKNOWN_BACKEND:
+ strbuf_addf(&buf, _("Unsupported SSL backend '%s'. "
+ "Supported SSL backends:"),
+ http_ssl_backend);
+ for (i = 0; backends[i]; i++)
+ strbuf_addf(&buf, "\n\t%s", backends[i]->name);
+ die("%s", buf.buf);
+ case CURLSSLSET_NO_BACKENDS:
+ die(_("Could not set SSL backend to '%s': "
+ "cURL was built without SSL backends"),
+ http_ssl_backend);
+ case CURLSSLSET_TOO_LATE:
+ die(_("Could not set SSL backend to '%s': already set"),
+ http_ssl_backend);
+ case CURLSSLSET_OK:
+ break; /* Okay! */
+ }
+ }
+#endif
+
if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
die("curl_global_init failed");