thodg/libgit2/src/streams/tls.c

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• Hash : 07a3c992
  Author :
  Date : 2020-11-21T23:52:39
  

  streams: use GIT_ASSERT

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• src/streams/tls.c

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #include "git2/errors.h"
  
  #include "common.h"
  #include "streams/registry.h"
  #include "streams/tls.h"
  #include "streams/mbedtls.h"
  #include "streams/openssl.h"
  #include "streams/stransport.h"
  
  int git_tls_stream_new(git_stream **out, const char *host, const char *port)
  {
  	int (*init)(git_stream **, const char *, const char *) = NULL;
  	git_stream_registration custom = {0};
  	int error;
  
  	GIT_ASSERT_ARG(out);
  	GIT_ASSERT_ARG(host);
  	GIT_ASSERT_ARG(port);
  
  	if ((error = git_stream_registry_lookup(&custom, GIT_STREAM_TLS)) == 0) {
  		init = custom.init;
  	} else if (error == GIT_ENOTFOUND) {
  #ifdef GIT_SECURE_TRANSPORT
  		init = git_stransport_stream_new;
  #elif defined(GIT_OPENSSL)
  		init = git_openssl_stream_new;
  #elif defined(GIT_MBEDTLS)
  		init = git_mbedtls_stream_new;
  #endif
  	} else {
  		return error;
  	}
  
  	if (!init) {
  		git_error_set(GIT_ERROR_SSL, "there is no TLS stream available");
  		return -1;
  	}
  
  	return init(out, host, port);
  }
  
  int git_tls_stream_wrap(git_stream **out, git_stream *in, const char *host)
  {
  	int (*wrap)(git_stream **, git_stream *, const char *) = NULL;
  	git_stream_registration custom = {0};
  
  	GIT_ASSERT_ARG(out);
  	GIT_ASSERT_ARG(in);
  
  	if (git_stream_registry_lookup(&custom, GIT_STREAM_TLS) == 0) {
  		wrap = custom.wrap;
  	} else {
  #ifdef GIT_SECURE_TRANSPORT
  		wrap = git_stransport_stream_wrap;
  #elif defined(GIT_OPENSSL)
  		wrap = git_openssl_stream_wrap;
  #elif defined(GIT_MBEDTLS)
  		wrap = git_mbedtls_stream_wrap;
  #endif
  	}
  
  	if (!wrap) {
  		git_error_set(GIT_ERROR_SSL, "there is no TLS stream available");
  		return -1;
  	}
  
  	return wrap(out, in, host);
  }
  

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