1 files changed, 19 insertions, 0 deletions
diff --git a/tools/utils.c b/tools/utils.c
index 691070e..3895215 100644
--- a/tools/utils.c
+++ b/tools/utils.c
@@ -2,6 +2,7 @@
 #include <sstream>
 #include <iomanip>
 #include <stdlib.h>     /* for abs() */
+#include <string.h>     /* for strerror_r() */
 /////                   <cmath> would not be an improvement
 /////                   due to lack of interger abs()
 /////                   and ambiguous (and inefficient) promotion
@@ -124,3 +125,21 @@ string join(const string sep, const list<string> stuff){
   }
   return rslt;
 }
+
+string strError(const int errnum){
+  char buf[1000];
+  char* rslt = strerror_r(errnum, buf, sizeof(buf));
+  return rslt;
+#ifdef XSI_not_gnu
+  if (rslt) {
+    cerr << "strerror_r() failed: " << rslt << " "
+    perror(0);
+    exit(1);
+  }
+#endif
+}
+
+extern int errno;
+string strError(){
+  return strError(errno);
+}