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disable networking with LD_PRELOAD when build 

see #969
This commit is contained in:
Boris Nagaev 2015-11-10 02:38:46 +03:00
parent 16ce867a16
commit 8448d43531
2 changed files with 44 additions and 3 deletions
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11
Makefile
View File

@ -144,7 +144,7 @@ define MXE_GET_GITHUB_TAGS
endef
# use a minimal whitelist of safe environment variables
ENV_WHITELIST := PATH LANG MAKE% MXE% %PROXY %proxy LD_LIBRARY_PATH ACLOCAL_PATH
ENV_WHITELIST := PATH LANG MAKE% MXE% %PROXY %proxy LD_LIBRARY_PATH LD_PRELOAD ACLOCAL_PATH
unexport $(filter-out $(ENV_WHITELIST),$(shell env | cut -d '=' -f1))
# disable wine with readonly directory (created by mxe-conf)
@ -406,6 +406,10 @@ download-only-$(1):
endef
$(foreach PKG,$(PKGS),$(eval $(call PKG_RULE,$(PKG))))
$(PREFIX)/lib/nonetwork.so: $(TOP_DIR)/tools/nonetwork.c
mkdir -p $(dir $@)
$(BUILD_CC) -shared -fPIC -o $@ $<
define PKG_TARGET_RULE
.PHONY: $(1)
$(1): $(PREFIX)/$(3)/installed/$(1)
@ -416,7 +420,8 @@ $(PREFIX)/$(3)/installed/$(1): $(TOP_DIR)/src/$(1).mk \
$(and $($(3)_DEPS),$(addprefix $(PREFIX)/$($(3)_DEPS)/installed/,$(filter-out $(MXE_CONF_PKGS),$($($(3)_DEPS)_PKGS)))) \
| $(if $(DONT_CHECK_REQUIREMENTS),,check-requirements) \
$(if $(value $(call LOOKUP_PKG_RULE,$(1),URL,$(3))),download-only-$(1)) \
$(addprefix $(PREFIX)/$(3)/installed/,$(if $(call set_is_not_member,$(1),$(MXE_CONF_PKGS)),$(MXE_CONF_PKGS)))
$(addprefix $(PREFIX)/$(3)/installed/,$(if $(call set_is_not_member,$(1),$(MXE_CONF_PKGS)),$(MXE_CONF_PKGS))) \
$(PREFIX)/lib/nonetwork.so
@[ -d '$(LOG_DIR)/$(TIMESTAMP)' ] || mkdir -p '$(LOG_DIR)/$(TIMESTAMP)'
$(if $(value $(call LOOKUP_PKG_RULE,$(1),BUILD,$(3))),
@$(PRINTF_FMT) '[build]' '$(1)' '$(3)',
@ -425,7 +430,7 @@ $(PREFIX)/$(3)/installed/$(1): $(TOP_DIR)/src/$(1).mk \
@$(PRINTF_FMT) '[message]' '$(1)' '$(3) $($(call LOOKUP_PKG_RULE,$(1),MESSAGE,$(3)))')
@touch '$(LOG_DIR)/$(TIMESTAMP)/$(1)_$(3)'
@ln -sf '$(TIMESTAMP)/$(1)_$(3)' '$(LOG_DIR)/$(1)_$(3)'
@if ! (time $(MAKE) -f '$(MAKEFILE)' 'build-only-$(1)_$(3)') &> '$(LOG_DIR)/$(TIMESTAMP)/$(1)_$(3)'; then \
@if ! (time LD_PRELOAD="$(PREFIX)/lib/nonetwork.so" $(MAKE) -f '$(MAKEFILE)' 'build-only-$(1)_$(3)') &> '$(LOG_DIR)/$(TIMESTAMP)/$(1)_$(3)'; then \
echo; \
echo 'Failed to build package $(1) for target $(3)!'; \
echo '------------------------------------------------------------'; \

36
tools/nonetwork.c Normal file
View File

@ -0,0 +1,36 @@
// nonetwork, break standard network functions using LD_PRELOAD
// Source: https://github.com/starius/nonetwork
// Copyright (C) 2015 Boris Nagaev
// License: MIT
#include <errno.h>
int connect(int sock, const void *addr, unsigned int len) {
errno = 13; // EACCES, Permission denied
return -1;
}
void *gethostbyname(const char *name) {
return 0;
}
int getaddrinfo(const char *node, const char *service,
const void *hints,
void **res) {
return -4; // EAI_FAIL
}
void freeaddrinfo(void *res) {
}
int getnameinfo(const void * sa,
unsigned int salen, char * host,
unsigned int hostlen, char * serv,
unsigned int servlen, int flags) {
return -4; // EAI_FAIL
}
struct hostent *gethostbyaddr(const void *addr, unsigned int len,
int type) {
return 0;
}