gentoo-overlay/sys-fs/e4rat/files/e4rat-0.2.4-strdup.patch

--- e4rat-0.2.4_pre20141201/src/e4rat-collect.cc.orig	2014-11-24 12:12:12.000000000 +0300
+++ e4rat-0.2.4_pre20141201/src/e4rat-collect.cc	2017-02-12 02:16:25.151757182 +0300
@@ -32,6 +32,7 @@
 #include <fcntl.h>
 #include <fstream>
 #include <signal.h>
+#include <cstring>
 
 /* EXT2_SUPER_MAGIC */
 #include <ext2fs/ext2_fs.h>
@@ -361,7 +362,9 @@
     {
         create_pid_late = true;
 
-        outPath = Config::get<std::string>("startup_log_file").c_str();
+        // It is unsafe to use Config::get<T>(arg)c_str() pointer
+        // directly, since it may be overwritten by later get calls.
+        outPath = strdup(Config::get<std::string>("startup_log_file").c_str());
         verbose = 0;
     }
     else
--- e4rat-0.2.4_pre20141201/src/e4rat-preload.cc.orig	2014-11-24 12:12:12.000000000 +0300
+++ e4rat-0.2.4_pre20141201/src/e4rat-preload.cc	2017-02-12 02:16:38.425552630 +0300
@@ -25,6 +25,7 @@
 
 #include <iostream>
 #include <fstream>
+#include <cstring>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -227,7 +228,8 @@
     try {
     if(getpid() == 1)
     {
-        const char* logfile = Config::get<std::string>("startup_log_file").c_str();
+        // pointer may change, string must be copied
+        const char* logfile = strdup(Config::get<std::string>("startup_log_file").c_str());
         notice("Open %s ... ", logfile);
         FILE* infile = fopen(logfile, "r");
         if(!infile)