diff --git a/package/libgluonutil/Makefile b/package/libgluonutil/Makefile new file mode 100644 index 00000000..762c25f4 --- /dev/null +++ b/package/libgluonutil/Makefile @@ -0,0 +1,35 @@ +include $(TOPDIR)/rules.mk + +PKG_NAME:=libgluonutil +PKG_VERSION:=1 +CMAKE_INSTALL:=1 + +PKG_LICENSE:=BSD-2-Clause + +PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME) + +include $(INCLUDE_DIR)/package.mk +include $(INCLUDE_DIR)/cmake.mk + +define Package/libgluonutil + SECTION:=libs + CATEGORY:=Libraries + TITLE:=Gluon utility library + DEPENDS:=+libjson-c +endef + +CMAKE_OPTIONS += \ + -DCMAKE_BUILD_TYPE:String="MINSIZEREL" + + +define Build/Prepare + mkdir -p $(PKG_BUILD_DIR) + $(CP) ./src/* $(PKG_BUILD_DIR)/ +endef + +define Package/libgluonutil/install + $(INSTALL_DIR) $(1)/usr/lib + $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/lib/libgluonutil.so $(1)/usr/lib/ +endef + +$(eval $(call BuildPackage,libgluonutil)) diff --git a/package/libgluonutil/src/CMakeLists.txt b/package/libgluonutil/src/CMakeLists.txt new file mode 100644 index 00000000..ba92a3e1 --- /dev/null +++ b/package/libgluonutil/src/CMakeLists.txt @@ -0,0 +1,24 @@ +cmake_minimum_required(VERSION 2.6) + +set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}) + +project(libgluonutil C) + +set(LIBDIR "lib${LIB_SUFFIX}") + +find_package(JSON_C REQUIRED) + +set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS _GNU_SOURCE) + +add_library(gluonutil SHARED libgluonutil.c) +set_property(TARGET gluonutil PROPERTY COMPILE_FLAGS "-Wall -std=c99 ${JSON_C_CFLAGS_OTHER}") +set_property(TARGET gluonutil PROPERTY LINK_FLAGS "${JSON_C_LDFLAGS_OTHER}") +set_property(TARGET gluonutil APPEND PROPERTY INCLUDE_DIRECTORIES ${JSON_C_INCLUDE_DIR}) +target_link_libraries(gluonutil ${JSON_C_LIBRARIES}) +install(TARGETS gluonutil + ARCHIVE DESTINATION ${LIBDIR} + LIBRARY DESTINATION ${LIBDIR} +) + + +install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/libgluonutil.h DESTINATION include) diff --git a/package/libgluonutil/src/FindJSON_C.cmake b/package/libgluonutil/src/FindJSON_C.cmake new file mode 100644 index 00000000..f6abee65 --- /dev/null +++ b/package/libgluonutil/src/FindJSON_C.cmake @@ -0,0 +1,20 @@ +# Defines the following variables: +# JSON_C_FOUND +# JSON_C_INCLUDE_DIR +# JSON_C_LIBRARIES +# JSON_C_CFLAGS_OTHER +# JSON_C_LDFLAGS_OTHER + + +find_package(PkgConfig REQUIRED QUIET) + +pkg_check_modules(_JSON_C json-c) + +find_path(JSON_C_INCLUDE_DIR NAMES json-c/json.h HINTS ${_JSON_C_INCLUDE_DIRS}) +find_library(JSON_C_LIBRARIES NAMES json-c HINTS ${_JSON_C_LIBRARY_DIRS}) + +set(JSON_C_CFLAGS_OTHER "${_JSON_C_CFLAGS_OTHER}" CACHE STRING "Additional compiler flags for json-c") +set(JSON_C_LDFLAGS_OTHER "${_JSON_C_LDFLAGS_OTHER}" CACHE STRING "Additional linker flags for json-c") + +find_package_handle_standard_args(JSON_C REQUIRED_VARS JSON_C_LIBRARIES JSON_C_INCLUDE_DIR) +mark_as_advanced(JSON_C_INCLUDE_DIR JSON_C_LIBRARIES JSON_C_CFLAGS_OTHER JSON_C_LDFLAGS_OTHER) diff --git a/package/libgluonutil/src/libgluonutil.c b/package/libgluonutil/src/libgluonutil.c new file mode 100644 index 00000000..5932c544 --- /dev/null +++ b/package/libgluonutil/src/libgluonutil.c @@ -0,0 +1,114 @@ +/* + Copyright (c) 2016, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#include "libgluonutil.h" + +#include + +#include +#include +#include + + +char * gluonutil_read_line(const char *filename) { + FILE *f = fopen(filename, "r"); + if (!f) + return NULL; + + char *line = NULL; + size_t len = 0; + + ssize_t r = getline(&line, &len, f); + + fclose(f); + + if (r >= 0) { + len = strlen(line); + + if (len && line[len-1] == '\n') + line[len-1] = 0; + } + else { + free(line); + line = NULL; + } + + return line; +} + +char * gluonutil_get_sysconfig(const char *key) { + if (strchr(key, '/')) + return NULL; + + const char prefix[] = "/lib/gluon/core/sysconfig/"; + char path[strlen(prefix) + strlen(key) + 1]; + snprintf(path, sizeof(path), "%s%s", prefix, key); + + return gluonutil_read_line(path); +} + +char * gluonutil_get_node_id(void) { + char *node_id = gluonutil_get_sysconfig("primary_mac"); + if (!node_id) + return NULL; + + char *in = node_id, *out = node_id; + + do { + if (*in != ':') + *out++ = *in; + } while (*in++); + + return node_id; +} + +char * gluonutil_get_interface_address(const char *ifname) { + const char *format = "/sys/class/net/%s/address"; + char path[strlen(format) + strlen(ifname) - 1]; + + snprintf(path, sizeof(path), format, ifname); + + return gluonutil_read_line(path); +} + + + +struct json_object * gluonutil_wrap_string(const char *str) { + if (!str) + return NULL; + + return json_object_new_string(str); +} + +struct json_object * gluonutil_wrap_and_free_string(char *str) { + struct json_object *ret = gluonutil_wrap_string(str); + free(str); + return ret; +} + +struct json_object * gluonutil_load_site_config(void) { + return json_object_from_file("/lib/gluon/site.json"); +} diff --git a/package/libgluonutil/src/libgluonutil.h b/package/libgluonutil/src/libgluonutil.h new file mode 100644 index 00000000..96195281 --- /dev/null +++ b/package/libgluonutil/src/libgluonutil.h @@ -0,0 +1,40 @@ +/* + Copyright (c) 2016, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#ifndef _LIBGLUON_LIBGLUON_H_ +#define _LIBGLUON_LIBGLUON_H_ + +char * gluonutil_read_line(const char *filename); +char * gluonutil_get_sysconfig(const char *key); +char * gluonutil_get_node_id(void); +char * gluonutil_get_interface_address(const char *ifname); + +struct json_object * gluonutil_wrap_string(const char *str); +struct json_object * gluonutil_wrap_and_free_string(char *str); + +struct json_object * gluonutil_load_site_config(void); + +#endif /* _LIBGLUON_LIBGLUON_H_ */