thodg/libgit2/src/settings.c

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• Hash : 4e91020c
  Author :
  Date : 2016-03-14T12:41:12
  

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• src/settings.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.
   */
  
  #ifdef GIT_OPENSSL
  # include <openssl/err.h>
  #endif
  
  #include <git2.h>
  #include "common.h"
  #include "sysdir.h"
  #include "cache.h"
  #include "global.h"
  #include "object.h"
  
  void git_libgit2_version(int *major, int *minor, int *rev)
  {
  	*major = LIBGIT2_VER_MAJOR;
  	*minor = LIBGIT2_VER_MINOR;
  	*rev = LIBGIT2_VER_REVISION;
  }
  
  int git_libgit2_features()
  {
  	return 0
  #ifdef GIT_THREADS
  		| GIT_FEATURE_THREADS
  #endif
  #if defined(GIT_OPENSSL) || defined(GIT_WINHTTP) || defined(GIT_SECURE_TRANSPORT)
  		| GIT_FEATURE_HTTPS
  #endif
  #if defined(GIT_SSH)
  		| GIT_FEATURE_SSH
  #endif
  #if defined(GIT_USE_NSEC)
  		| GIT_FEATURE_NSEC
  #endif
  	;
  }
  
  /* Declarations for tuneable settings */
  extern size_t git_mwindow__window_size;
  extern size_t git_mwindow__mapped_limit;
  
  static int config_level_to_sysdir(int config_level)
  {
  	int val = -1;
  
  	switch (config_level) {
  	case GIT_CONFIG_LEVEL_SYSTEM:
  		val = GIT_SYSDIR_SYSTEM;
  		break;
  	case GIT_CONFIG_LEVEL_XDG:
  		val = GIT_SYSDIR_XDG;
  		break;
  	case GIT_CONFIG_LEVEL_GLOBAL:
  		val = GIT_SYSDIR_GLOBAL;
  		break;
  	case GIT_CONFIG_LEVEL_PROGRAMDATA:
  		val = GIT_SYSDIR_PROGRAMDATA;
  		break;
  	default:
  		giterr_set(
  			GITERR_INVALID, "Invalid config path selector %d", config_level);
  	}
  
  	return val;
  }
  
  extern char *git__user_agent;
  extern char *git__ssl_ciphers;
  
  const char *git_libgit2__user_agent()
  {
  	return git__user_agent;
  }
  
  const char *git_libgit2__ssl_ciphers()
  {
  	return git__ssl_ciphers;
  }
  
  int git_libgit2_opts(int key, ...)
  {
  	int error = 0;
  	va_list ap;
  
  	va_start(ap, key);
  
  	switch (key) {
  	case GIT_OPT_SET_MWINDOW_SIZE:
  		git_mwindow__window_size = va_arg(ap, size_t);
  		break;
  
  	case GIT_OPT_GET_MWINDOW_SIZE:
  		*(va_arg(ap, size_t *)) = git_mwindow__window_size;
  		break;
  
  	case GIT_OPT_SET_MWINDOW_MAPPED_LIMIT:
  		git_mwindow__mapped_limit = va_arg(ap, size_t);
  		break;
  
  	case GIT_OPT_GET_MWINDOW_MAPPED_LIMIT:
  		*(va_arg(ap, size_t *)) = git_mwindow__mapped_limit;
  		break;
  
  	case GIT_OPT_GET_SEARCH_PATH:
  		if ((error = config_level_to_sysdir(va_arg(ap, int))) >= 0) {
  			git_buf *out = va_arg(ap, git_buf *);
  			const git_buf *tmp;
  
  			git_buf_sanitize(out);
  			if ((error = git_sysdir_get(&tmp, error)) < 0)
  				break;
  
  			error = git_buf_sets(out, tmp->ptr);
  		}
  		break;
  
  	case GIT_OPT_SET_SEARCH_PATH:
  		if ((error = config_level_to_sysdir(va_arg(ap, int))) >= 0)
  			error = git_sysdir_set(error, va_arg(ap, const char *));
  		break;
  
  	case GIT_OPT_SET_CACHE_OBJECT_LIMIT:
  		{
  			git_otype type = (git_otype)va_arg(ap, int);
  			size_t size = va_arg(ap, size_t);
  			error = git_cache_set_max_object_size(type, size);
  			break;
  		}
  
  	case GIT_OPT_SET_CACHE_MAX_SIZE:
  		git_cache__max_storage = va_arg(ap, ssize_t);
  		break;
  
  	case GIT_OPT_ENABLE_CACHING:
  		git_cache__enabled = (va_arg(ap, int) != 0);
  		break;
  
  	case GIT_OPT_GET_CACHED_MEMORY:
  		*(va_arg(ap, ssize_t *)) = git_cache__current_storage.val;
  		*(va_arg(ap, ssize_t *)) = git_cache__max_storage;
  		break;
  
  	case GIT_OPT_GET_TEMPLATE_PATH:
  		{
  			git_buf *out = va_arg(ap, git_buf *);
  			const git_buf *tmp;
  
  			git_buf_sanitize(out);
  			if ((error = git_sysdir_get(&tmp, GIT_SYSDIR_TEMPLATE)) < 0)
  				break;
  
  			error = git_buf_sets(out, tmp->ptr);
  		}
  		break;
  
  	case GIT_OPT_SET_TEMPLATE_PATH:
  		error = git_sysdir_set(GIT_SYSDIR_TEMPLATE, va_arg(ap, const char *));
  		break;
  
  	case GIT_OPT_SET_SSL_CERT_LOCATIONS:
  #ifdef GIT_OPENSSL
  		{
  			const char *file = va_arg(ap, const char *);
  			const char *path = va_arg(ap, const char *);
  			if (!SSL_CTX_load_verify_locations(git__ssl_ctx, file, path)) {
  				giterr_set(GITERR_NET, "SSL error: %s",
  					ERR_error_string(ERR_get_error(), NULL));
  				error = -1;
  			}
  		}
  #else
  		giterr_set(GITERR_NET, "cannot set certificate locations: OpenSSL is not enabled");
  		error = -1;
  #endif
  		break;
  	case GIT_OPT_SET_USER_AGENT:
  		git__free(git__user_agent);
  		git__user_agent = git__strdup(va_arg(ap, const char *));
  		if (!git__user_agent) {
  			giterr_set_oom();
  			error = -1;
  		}
  
  		break;
  
  	case GIT_OPT_ENABLE_STRICT_OBJECT_CREATION:
  		git_object__strict_input_validation = (va_arg(ap, int) != 0);
  		break;
  
  	case GIT_OPT_SET_SSL_CIPHERS:
  #ifdef GIT_OPENSSL
  		{
  			git__free(git__ssl_ciphers);
  			git__ssl_ciphers = git__strdup(va_arg(ap, const char *));
  			if (!git__ssl_ciphers) {
  				giterr_set_oom();
  				error = -1;
  			}
  		}
  #else
  		giterr_set(GITERR_NET, "cannot set custom ciphers: OpenSSL is not enabled");
  		error = -1;
  #endif
  		break;
  
  	default:
  		giterr_set(GITERR_INVALID, "invalid option key");
  		error = -1;
  	}
  
  	va_end(ap);
  
  	return error;
  }
  
  

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