Moved strprintf into stringutils.{h,cpp}

1 files changed, 24 insertions, 0 deletions

diff --git a/src/utils/stringutils.cpp b/src/utils/stringutils.cpp
index 57a0131e..c9428974 100644
--- a/src/utils/stringutils.cpp
+++ b/src/utils/stringutils.cpp
@@ -22,6 +22,8 @@
 #include "utils/stringutils.h"
 
 #include <algorithm>
+#include <cstdarg>
+#include <cstdio>
 
 std::string &trim(std::string &str)
 {
@@ -69,6 +71,28 @@ const char *ipToString(int address)
     return asciiIP;
 }
 
+std::string strprintf(char const *format, ...)
+{
+    char buf[256];
+    va_list(args);
+    va_start(args, format);
+    int nb = vsnprintf(buf, 256, format, args);
+    va_end(args);
+    if (nb < 256)
+    {
+        return buf;
+    }
+    // The static size was not big enough, try again with a dynamic allocation.
+    ++nb;
+    char *buf2 = new char[nb];
+    va_start(args, format);
+    vsnprintf(buf2, nb, format, args);
+    va_end(args);
+    std::string res(buf2);
+    delete [] buf2;
+    return res;
+}
+
 std::string &removeBadChars(std::string &str)
 {
     std::string::size_type pos;