Move code to the shared library

Change-Id: I05f3bc5902bd7b13b4f50dac32622e7f3cbaedab

6 files changed, 272 insertions, 183 deletions

diff --git a/packaging/crash-worker.spec b/packaging/crash-worker.spec
index 2f38a78..a597a4b 100644
--- a/packaging/crash-worker.spec
+++ b/packaging/crash-worker.spec
@@ -54,6 +54,11 @@ Requires: %{_bindir}/buxton2ctl
 %description
 crash-manager
 
+%package devel
+Summary:    Crash-manager development package
+%description devel
+This package provides library and header files.
+
 %if %{with doc}
 %package doc
 Summary:       Documentation package for crash-worker
@@ -136,7 +141,8 @@ export CFLAGS+=" -Werror"
 	   -DLOG_DUMP=%{on_off logdump} \
 	   -DLIVEDUMPER=%{on_off livedumper} \
 	   -DUPGRADE_SCRIPT_PATH=%{upgrade_script_path} \
-	   -DLOGGER=dlog
+	   -DLOGGER=dlog \
+	   -DVERSION=%{version}
 
 make %{?jobs:-j%jobs}
 %if %{with doc}
@@ -207,6 +213,7 @@ sed -i "/${pattern}/D" %{_sysconfdir}/ld.so.preload
 %{_libexecdir}/crash-stack
 %{_libexecdir}/crash-popup-launch
 %{_libexecdir}/crash-notify-send
+%{_libdir}/libcrash-manager.so.*
 
 %if %{with logdump}
 %dir %{crash_all_log}
@@ -225,6 +232,11 @@ sed -i "/${pattern}/D" %{_sysconfdir}/ld.so.preload
 #upgrade script
 %attr(-,root,root) %{upgrade_script_path}/500.crash-manager-upgrade.sh
 
+%files devel
+%{_includedir}/crash-manager.h
+%{_libdir}/libcrash-manager.so
+%{_datadir}/pkgconfig/*.pc
+
 %if %{with doc}
 %files doc
 %{_datadir}/doc/crash-worker
@@ -251,3 +263,4 @@ sed -i "/${pattern}/D" %{_sysconfdir}/ld.so.preload
 %manifest %{name}.manifest
 %{_bindir}/livedumper
 %endif
+
diff --git a/src/crash-manager/CMakeLists.txt b/src/crash-manager/CMakeLists.txt
index ce803d8..b935621 100644
--- a/src/crash-manager/CMakeLists.txt
+++ b/src/crash-manager/CMakeLists.txt
@@ -2,7 +2,7 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 PROJECT(crash-manager C)
 
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/src)
-SET(CRASH_MANAGER_SRCS
+SET(LIB_CRASH_MANAGER_SRCS
 	crash-manager.c
 	so-info.c
 	${CMAKE_SOURCE_DIR}/src/shared/util.c
@@ -10,6 +10,10 @@ SET(CRASH_MANAGER_SRCS
 	${CMAKE_SOURCE_DIR}/src/shared/config.c
    )
 
+SET(CRASH_MANAGER_SRCS
+        main.c
+   )
+
 INCLUDE(FindPkgConfig)
 pkg_check_modules(crash-manager_pkgs REQUIRED
 	dlog
@@ -30,8 +34,14 @@ ENDFOREACH(flag)
 
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS} -fPIE")
 
+ADD_LIBRARY(libcrash-manager SHARED ${LIB_CRASH_MANAGER_SRCS})
+SET_TARGET_PROPERTIES(libcrash-manager PROPERTIES SOVERSION 1)
+SET_TARGET_PROPERTIES(libcrash-manager PROPERTIES PUBLIC_HEADER crash-manager.h)
+SET_TARGET_PROPERTIES(libcrash-manager PROPERTIES OUTPUT_NAME crash-manager)
+TARGET_LINK_LIBRARIES(libcrash-manager ${crash-manager_pkgs_LDFLAGS})
+
 ADD_EXECUTABLE(${PROJECT_NAME} ${CRASH_MANAGER_SRCS})
-TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${crash-manager_pkgs_LDFLAGS} -pie -lrt)
+TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${crash-manager_pkgs_LDFLAGS} -pie -lrt libcrash-manager)
 
 set(CRASH_POPUP crash-popup-launch)
 ADD_EXECUTABLE(${CRASH_POPUP} ${CRASH_POPUP}.c)
@@ -43,17 +53,24 @@ ADD_EXECUTABLE(${CRASH_NOTIFY} dbus_notify.c)
 TARGET_LINK_LIBRARIES(${CRASH_NOTIFY} ${helper_pkgs_LDFLAGS} -pie)
 install(TARGETS ${CRASH_NOTIFY} DESTINATION libexec)
 
+INSTALL(TARGETS libcrash-manager LIBRARY DESTINATION lib PUBLIC_HEADER DESTINATION include)
+
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION bin
 		PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE
 		GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
 
 CONFIGURE_FILE(500.${PROJECT_NAME}-upgrade.sh.in 500.${PROJECT_NAME}-upgrade.sh @ONLY)
 CONFIGURE_FILE(70-${PROJECT_NAME}.conf.in 70-${PROJECT_NAME}.conf @ONLY)
+CONFIGURE_FILE(crash-manager.pc.in crash-manager.pc @ONLY)
 
 INSTALL(FILES ${CMAKE_SOURCE_DIR}/src/${PROJECT_NAME}/crash-manager.conf
 		DESTINATION /etc
 		PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
 
+INSTALL(FILES ${CMAKE_SOURCE_DIR}/src/${PROJECT_NAME}/crash-manager.pc
+		DESTINATION share/pkgconfig
+		PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
+
 INSTALL(FILES ${CMAKE_SOURCE_DIR}/src/${PROJECT_NAME}/70-${PROJECT_NAME}.conf
 		DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/sysctl.d
 		PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
diff --git a/src/crash-manager/crash-manager.c b/src/crash-manager/crash-manager.c
index 7d30c92..be79b5b 100644
--- a/src/crash-manager/crash-manager.c
+++ b/src/crash-manager/crash-manager.c
@@ -51,11 +51,10 @@
 #include "shared/spawn.h"
 #include "shared/util.h"
 #include "so-info.h"
+#include "crash-manager.h"
 
 /* Parsing */
 #define KEY_MAX              255
-#define APPID_MAX                   128
-#define PKGNAME_MAX                 128
 
 #define CRASH_TEMP_SUBDIR    "/temp/"
 #define CRASH_PATH_SUBDIR    "/dump/"
@@ -86,36 +85,6 @@ config_t config;
 static char* crash_dump_path;
 static char* crash_temp_path;
 
-/* Paths and variables */
-struct crash_info {
-	pid_t pid_info;
-	pid_t tid_info;
-	int uid_info;
-	int gid_info;
-	int sig_info;
-	char *cmd_line;
-	char *cmd_path;
-	time_t time_info;
-	char *temp_dir;
-	char *name;
-	char *result_path;
-	char *pfx;
-	char *info_path;
-	char *core_path;
-	char *log_path;
-	char appid[APPID_MAX];
-	char pkgid[PKGNAME_MAX];
-	char *output_path;
-	bool livedump;
-	bool kill;
-	bool print_result_path;
-#ifdef SYS_ASSERT
-	char *sysassert_cs_path;
-	bool have_sysassert_report;
-#endif
-	int prstatus_fd;
-};
-
 /* pkgmgrinfo filter list function for getting application ID */
 static int appinfo_get_appid_func(pkgmgrinfo_appinfo_h handle,
 		void *user_data)
@@ -339,125 +308,7 @@ close_fd:
 	return -1;
 }
 
-static void print_help(const char *name)
-{
-	printf("Syntax: %s [OPTIONS]\n"
-	       "\n"
-	       "    -p  --pid=PID           PID of dumped process\n"
-	       "    -u  --uid=UID           real UID of dumped process\n"
-	       "    -g  --gid=GID           real GID of dumped process\n"
-	       "    -i  --tid=TID           TID of thread that triggered core dump\n"
-	       "    -s  --signal=SIG        number of signal causing dump\n"
-	       "    -t  --time=TIME         time of dump, expressed as seconds since the Epoch\n"
-	       "    -l  --live              get coredump of running process\n"
-	       "    -k  --kill-after-dump   kill after dump (only with --live option)\n"
-	       "    -r  --print             print report path to stdout\n"
-	       "    -o  --output            output directory\n"
-	       "    -h  --help              this message\n"
-	       "\n"
-	       "for --live option only --pid is required\n"
-	       "\n", name);
-}
-
-static bool parse_args(struct crash_info *cinfo, int argc, char *argv[])
-{
-#define QUOTE(member) #member
-#define GET_NUMBER(member) \
-	errno = 0; \
-	cinfo->member##_info = strtol(optarg, NULL, 10); \
-	if (errno != 0) { \
-		_D("%s argument error\n", QUOTE(member)); \
-		printf("%s argument error\n", QUOTE(member)); \
-		return false; \
-	}
-
-	bool result = true;
-	int opt;
-	bool pid_set = false;
-	bool uid_set = false;
-	bool gid_set = false;
-	bool sig_set = false;
-
-	struct option long_options[] = {
-		{"pid",             required_argument, NULL, 'p'},
-		{"uid",             required_argument, NULL, 'u'},
-		{"gid",             required_argument, NULL, 'g'},
-		{"tid",             required_argument, NULL, 'i'},
-		{"signal",          required_argument, NULL, 's'},
-		{"time",            required_argument, NULL, 't'},
-		{"live",                  no_argument, NULL, 'l'},
-		{"kill-after-dump",       no_argument, NULL, 'k'},
-		{"print",                 no_argument, NULL, 'r'},
-		{"output",          required_argument, NULL, 'o'},
-		{"help",                  no_argument, NULL, 'h'},
-	};
-
-	while ((opt = getopt_long(argc, argv, "p:u:g:i:s:t:hlkro:", long_options, NULL)) != -1) {
-		switch (opt) {
-		case 'p':
-			GET_NUMBER(pid)
-			pid_set = true;
-			break;
-		case 'u':
-			GET_NUMBER(uid)
-			uid_set = true;
-			break;
-		case 'g':
-			GET_NUMBER(gid)
-			gid_set = true;
-			break;
-		case 'i':
-			GET_NUMBER(tid)
-			break;
-		case 's':
-			GET_NUMBER(sig)
-			sig_set = true;
-			break;
-		case 't':
-			GET_NUMBER(time)
-			break;
-		case 'l':
-			cinfo->livedump = true;
-			break;
-		case 'k':
-			cinfo->kill = true;
-			break;
-		case 'r':
-			cinfo->print_result_path = true;
-			break;
-		case 'o':
-			cinfo->output_path = optarg;
-			_D("output path: %s\n", optarg);
-			break;
-		case 'h':
-		default:
-			print_help(argv[0]);
-			return false;
-		}
-	}
-
-	if (!pid_set || (!cinfo->livedump && (!gid_set || !uid_set || !sig_set))) {
-		printf("Not enough parameters.\n\n");
-		print_help(argv[0]);
-		return false;
-	}
-
-	if (cinfo->livedump && sig_set) {
-		printf("--sig can not be used with --live option\n\n");
-		print_help(argv[0]);
-		return false;
-	}
-
-	if (!cinfo->livedump && cinfo->kill) {
-		printf("Option --kill-after-dump can be used only with --live\n");
-		return false;
-	}
-	return result;
-#undef QUOTE
-#undef GET_NUMBER
-}
-
-static bool set_crash_info(struct crash_info *cinfo)
+bool set_crash_info(struct crash_info *cinfo)
 {
 	int ret;
 	char *temp_dir_ret = NULL;
@@ -1244,7 +1095,7 @@ static void free_crash_info(struct crash_info *cinfo)
 #endif
 }
 
-static void crash_info_init(struct crash_info *cinfo)
+void crash_info_init(struct crash_info *cinfo)
 {
 	cinfo->prstatus_fd = -1;
 	cinfo->livedump = false;
@@ -1253,6 +1104,13 @@ static void crash_info_init(struct crash_info *cinfo)
 	cinfo->tid_info = -1;
 	cinfo->time_info = 0;
 	cinfo->output_path = NULL;
+	cinfo->cmd_line = NULL;
+	cinfo->cmd_path = NULL;
+	cinfo->temp_dir = NULL;
+	cinfo->pfx =  NULL;
+	cinfo->result_path = NULL;
+	cinfo->info_path = NULL;
+	cinfo->core_path = NULL;
 }
 
 static bool run(struct crash_info *cinfo)
@@ -1337,7 +1195,8 @@ static bool run(struct crash_info *cinfo)
 	return true;
 }
 
-bool crash_manager_prepare(struct crash_info *cinfo) {
+static bool crash_manager_prepare(struct crash_info *cinfo)
+{
 	if (!config_init(&config, CRASH_MANAGER_CONFIG_PATH))
 		return false;
 
@@ -1357,7 +1216,7 @@ bool crash_manager_prepare(struct crash_info *cinfo) {
 	return true;
 }
 
-static void crash_manager_free(struct crash_info *cinfo)
+void crash_manager_free(struct crash_info *cinfo)
 {
 	if (cinfo->prstatus_fd >= 0)
 		close(cinfo->prstatus_fd);
@@ -1368,32 +1227,11 @@ static void crash_manager_free(struct crash_info *cinfo)
 	free_crash_info(cinfo);
 }
 
-int main(int argc, char *argv[])
+bool crash_manager_direct(struct crash_info *cinfo)
 {
-	int res = EXIT_SUCCESS;
-	struct crash_info cinfo;
-
-	/*
-	 * prctl(PR_SET_DUMPABLE, 0) is not neccessary. Kernel runs the
-	 * crash-manager and sets RLIMIT_CORE to 1 for the process. This is special
-	 * value that prevents from running crash-manager recursively.
-	 */
-
-	crash_info_init(&cinfo);
-
-	/* Parse args */
-	if (!parse_args(&cinfo, argc, argv))
-		return EXIT_FAILURE;
-
-	if (!crash_manager_prepare(&cinfo)) {
-		res = EXIT_FAILURE;
-		goto exit;
-	}
+	if (!crash_manager_prepare(cinfo))
+		return false;
 
-	if (!run(&cinfo))
-		res = EXIT_FAILURE;
-exit:
-	crash_manager_free(&cinfo);
-	_I("Exiting with exit code %d", res);
-	return res;
+	return run(cinfo);
 }
+
diff --git a/src/crash-manager/crash-manager.h b/src/crash-manager/crash-manager.h
new file mode 100644
index 0000000..244b37a
--- /dev/null
+++ b/src/crash-manager/crash-manager.h
@@ -0,0 +1,62 @@
+/*
+ * crash-manager
+ *
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CRASH_MANAGER_H__
+#define __CRASH_MANAGER_H__
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdbool.h>
+
+#define APPID_MAX                   128
+#define PKGNAME_MAX                 128
+
+/* Paths and variables */
+struct crash_info {
+	pid_t pid_info;
+	pid_t tid_info;
+	int uid_info;
+	int gid_info;
+	int sig_info;
+	char *cmd_line;
+	char *cmd_path;
+	time_t time_info;
+	char *temp_dir;
+	char *name;
+	char *result_path;
+	char *pfx;
+	char *info_path;
+	char *core_path;
+	char *log_path;
+	char appid[APPID_MAX];
+	char pkgid[PKGNAME_MAX];
+	char *output_path;
+	bool livedump;
+	bool kill;
+	bool print_result_path;
+#ifdef SYS_ASSERT
+	char *sysassert_cs_path;
+	bool have_sysassert_report;
+#endif
+	int prstatus_fd;
+};
+
+bool crash_manager_direct(struct crash_info *cinfo);
+void crash_info_init(struct crash_info *cinfo);
+void crash_manager_free(struct crash_info *cinfo);
+#endif
diff --git a/src/crash-manager/crash-manager.pc.in b/src/crash-manager/crash-manager.pc.in
new file mode 100644
index 0000000..3f9b266
--- /dev/null
+++ b/src/crash-manager/crash-manager.pc.in
@@ -0,0 +1,10 @@
+prefix=/usr
+exec_prefix=${prefix}
+includedir=${prefix}/include
+libdir=${exec_prefix}/lib
+
+Name: crash-manager
+Description: The crash-manager library
+Version: @VERSION@
+Cflags: -I${includedir}
+Libs: -L${libdir} -lcrash-manager
diff --git a/src/crash-manager/main.c b/src/crash-manager/main.c
new file mode 100644
index 0000000..53211e8
--- /dev/null
+++ b/src/crash-manager/main.c
@@ -0,0 +1,149 @@
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "shared/log.h"
+#include "crash-manager.h"
+
+static void print_help(const char *name)
+{
+	printf("Syntax: %s [OPTIONS]\n"
+	       "\n"
+	       "    -p  --pid=PID           PID of dumped process\n"
+	       "    -u  --uid=UID           real UID of dumped process\n"
+	       "    -g  --gid=GID           real GID of dumped process\n"
+	       "    -i  --tid=TID           TID of thread that triggered core dump\n"
+	       "    -s  --signal=SIG        number of signal causing dump\n"
+	       "    -t  --time=TIME         time of dump, expressed as seconds since the Epoch\n"
+	       "    -l  --live              get coredump of running process\n"
+	       "    -k  --kill-after-dump   kill after dump (only with --live option)\n"
+	       "    -r  --print             print report path to stdout\n"
+	       "    -o  --output            output directory\n"
+	       "    -h  --help              this message\n"
+	       "\n"
+	       "for --live option only --pid is required\n"
+	       "\n", name);
+}
+
+static bool parse_args(struct crash_info *cinfo, int argc, char *argv[])
+{
+#define QUOTE(member) #member
+#define GET_NUMBER(member) \
+	do {\
+		errno = 0; \
+		cinfo->member##_info = strtol(optarg, NULL, 10); \
+		if (errno != 0) { \
+			_D("%s argument error\n", QUOTE(member)); \
+			printf("%s argument error\n", QUOTE(member)); \
+			return false; \
+		} \
+	} while(0)
+
+	bool result = true;
+	int opt;
+	bool pid_set = false;
+	bool uid_set = false;
+	bool gid_set = false;
+	bool sig_set = false;
+
+	struct option long_options[] = {
+		{"pid",             required_argument, NULL, 'p'},
+		{"uid",             required_argument, NULL, 'u'},
+		{"gid",             required_argument, NULL, 'g'},
+		{"tid",             required_argument, NULL, 'i'},
+		{"signal",          required_argument, NULL, 's'},
+		{"time",            required_argument, NULL, 't'},
+		{"live",                  no_argument, NULL, 'l'},
+		{"kill-after-dump",       no_argument, NULL, 'k'},
+		{"print",                 no_argument, NULL, 'r'},
+		{"output",          required_argument, NULL, 'o'},
+		{"help",                  no_argument, NULL, 'h'},
+	};
+
+	while ((opt = getopt_long(argc, argv, "p:u:g:i:s:t:hlkro:", long_options, NULL)) != -1) {
+		switch (opt) {
+		case 'p':
+			GET_NUMBER(pid);
+			pid_set = true;
+			break;
+		case 'u':
+			GET_NUMBER(uid);
+			uid_set = true;
+			break;
+		case 'g':
+			GET_NUMBER(gid);
+			gid_set = true;
+			break;
+		case 'i':
+			GET_NUMBER(tid);
+			break;
+		case 's':
+			GET_NUMBER(sig);
+			sig_set = true;
+			break;
+		case 't':
+			GET_NUMBER(time);
+			break;
+		case 'l':
+			cinfo->livedump = true;
+			break;
+		case 'k':
+			cinfo->kill = true;
+			break;
+		case 'r':
+			cinfo->print_result_path = true;
+			break;
+		case 'o':
+			cinfo->output_path = optarg;
+			_D("output path: %s\n", optarg);
+			break;
+		case 'h':
+		default:
+			print_help(argv[0]);
+			return false;
+		}
+	}
+
+	if (!pid_set || (!cinfo->livedump && (!gid_set || !uid_set || !sig_set))) {
+		printf("Not enough parameters.\n\n");
+		print_help(argv[0]);
+		return false;
+	}
+
+	if (cinfo->livedump && sig_set) {
+		printf("--sig can not be used with --live option\n\n");
+		print_help(argv[0]);
+		return false;
+	}
+
+	if (!cinfo->livedump && cinfo->kill) {
+		printf("Option --kill-after-dump can be used only with --live\n");
+		return false;
+	}
+	return result;
+#undef QUOTE
+#undef GET_NUMBER
+}
+
+
+int main(int argc, char *argv[])
+{
+	struct crash_info cinfo;
+
+	/*
+	 * prctl(PR_SET_DUMPABLE, 0) is not neccessary. Kernel runs the
+	 * crash-manager and sets RLIMIT_CORE to 1 for the process. This is special
+	 * value that prevents from running crash-manager recursively.
+	 */
+
+	crash_info_init(&cinfo);
+
+	/* Parse args */
+	if (!parse_args(&cinfo, argc, argv))
+		return EXIT_FAILURE;
+
+	int res = crash_manager_direct(&cinfo) ? EXIT_SUCCESS : EXIT_FAILURE;
+
+	crash_manager_free(&cinfo);
+	_I("Exiting with exit code %d", res);
+	return res;
+}