crashReporter: cleanup code (#12534)

various code cleanups, reorders, move off of global NS

1 files changed, 34 insertions, 0 deletions

diff --git a/src/debug/crash/SignalSafe.cpp b/src/debug/crash/SignalSafe.cpp
new file mode 100644
index 00000000..22717f1b
--- /dev/null
+++ b/src/debug/crash/SignalSafe.cpp
@@ -0,0 +1,34 @@
+#include "SignalSafe.hpp"
+
+#ifndef __GLIBC__
+#include <signal.h>
+#endif
+#include <fcntl.h>
+#include <unistd.h>
+#include <cstring>
+
+using namespace SignalSafe;
+
+// NOLINTNEXTLINE
+extern "C" char** environ;
+
+//
+char const* SignalSafe::getenv(char const* name) {
+    const size_t len = strlen(name);
+    for (char** var = environ; *var != nullptr; var++) {
+        if (strncmp(*var, name, len) == 0 && (*var)[len] == '=') {
+            return (*var) + len + 1;
+        }
+    }
+    return nullptr;
+}
+
+char const* SignalSafe::strsignal(int sig) {
+#ifdef __GLIBC__
+    return sigabbrev_np(sig);
+#elif defined(__DragonFly__) || defined(__FreeBSD__)
+    return sys_signame[sig];
+#else
+    return "unknown";
+#endif
+}