lxcpp: Stopping container's init process

[platform/core/security/vasum.git] / common / utils / signal.cpp

diff --git a/common/utils/signal.cpp b/common/utils/signal.cpp
index 17ec003..51c45b1 100644 (file)
--- a/common/utils/signal.cpp
+++ b/common/utils/signal.cpp
@@ -39,24 +39,24 @@ void setSignalMask(int how, const ::sigset_t& set)
 {
     int ret = ::pthread_sigmask(how, &set, nullptr /*&oldSet*/);
     if(ret != 0) {
-        const std::string msg = getSystemErrorMessage(ret);
-        LOGE("Error in pthread_sigmask: " << msg);
-        throw UtilsException("Error in pthread_sigmask: " + msg);
+        const std::string msg = "Error in pthread_sigmask: " + getSystemErrorMessage(ret);
+        LOGE(msg);
+        throw UtilsException(msg);
     }
 }
 
 void changeSignal(int how, const int sigNum) {
     ::sigset_t set;
     if(-1 == ::sigemptyset(&set)) {
-        const std::string msg = getSystemErrorMessage();
-        LOGE("Error in sigfillset: " << msg);
-        throw UtilsException("Error in sigfillset: " + msg);
+        const std::string msg = "Error in sigfillset: " + getSystemErrorMessage();
+        LOGE(msg);
+        throw UtilsException(msg);
     }
 
     if(-1 ==::sigaddset(&set, sigNum)) {
-        const std::string msg = getSystemErrorMessage();
-        LOGE("Error in sigdelset: " << msg);
-        throw UtilsException("Error in sigdelset: " + msg);
+        const std::string msg = "Error in sigdelset: " + getSystemErrorMessage();
+        LOGE(msg);
+        throw UtilsException(msg);
     }
 
     setSignalMask(how, set);
@@ -69,9 +69,9 @@ void changeSignal(int how, const int sigNum) {
     ::sigset_t set;
     int ret = ::pthread_sigmask(0 /*ignored*/, nullptr /*get the oldset*/, &set);
     if(ret != 0) {
-        const std::string msg = getSystemErrorMessage(ret);
-        LOGE("Error in pthread_sigmask: " << msg);
-        throw UtilsException("Error in pthread_sigmask: " + msg);
+        const std::string msg = "Error in pthread_sigmask: " + getSystemErrorMessage(ret);
+        LOGE(msg);
+        throw UtilsException(msg);
     }
     return set;
 }
@@ -82,9 +82,9 @@ bool isSignalBlocked(const int sigNum)
 
     int ret = ::sigismember(&set, sigNum);
     if(-1 == ret) {
-        const std::string msg = getSystemErrorMessage();
-        LOGE("Error in sigismember: " << msg);
-        throw UtilsException("Error in sigismember: " + msg);
+        const std::string msg = "Error in sigismember: " + getSystemErrorMessage();
+        LOGE(msg);
+        throw UtilsException(msg);
     }
 
     return ret == 1;
@@ -95,15 +95,22 @@ void signalBlock(const int sigNum)
     changeSignal(SIG_BLOCK, sigNum);
 }
 
-void signalBlockAll()
+void signalBlockAllExcept(const std::initializer_list<int>& signals)
 {
     ::sigset_t set;
     if(-1 == ::sigfillset(&set)) {
-        const std::string msg = getSystemErrorMessage();
-        LOGE("Error in sigfillset: " << msg);
-        throw UtilsException("Error in sigfillset: " + msg);
+        const std::string msg = "Error in sigfillset: " + getSystemErrorMessage();
+        LOGE(msg);
+        throw UtilsException(msg);
     }
 
+    for(const int s: signals) {
+        if(-1 == ::sigaddset(&set, s)) {
+            const std::string msg = "Error in sigaddset: " + getSystemErrorMessage();
+            LOGE(msg);
+            throw UtilsException(msg);
+        }
+    }
     setSignalMask(SIG_BLOCK, set);
 }
 
@@ -112,6 +119,31 @@ void signalUnblock(const int sigNum)
     changeSignal(SIG_UNBLOCK, sigNum);
 }
 
+void signalIgnore(const std::initializer_list<int>& signals)
+{
+    struct ::sigaction act;
+    act.sa_handler = SIG_IGN;
+
+    for(const int s: signals) {
+        if(-1 == ::sigaction(s, &act, nullptr)) {
+            const std::string msg = "Error in sigaction: " + getSystemErrorMessage();
+            LOGE(msg);
+            throw UtilsException(msg);
+        }
+    }
+}
+
+void sendSignal(const pid_t pid, const int sigNum)
+{
+    if (-1 == ::kill(pid, sigNum)) {
+        const std::string msg = "Error during killing pid: " + std::to_string(pid) +
+                                " sigNum: " + std::to_string(sigNum) +
+                                ": "  + getSystemErrorMessage();
+        LOGE(msg);
+        throw UtilsException(msg);
+    }
+}
+
 } // namespace utils