added network server files

[palacios.git] / misc / network_servers / vtl / config.cc

diff --git a/misc/network_servers/vtl/config.cc b/misc/network_servers/vtl/config.cc
new file mode 100644 (file)
index 0000000..f54d765
--- /dev/null
+++ b/misc/network_servers/vtl/config.cc
@@ -0,0 +1,43 @@
+#include "config.h"
+
+
+int read_config(string conf_file_name, config_t * config) {
+  fstream conf_file(conf_file_name.c_str(), ios::in);
+  char line[MAX_CONFIG_LINE_SIZE];
+
+  if (!conf_file.is_open()) {
+    return -1;
+  }
+
+  while ((conf_file.getline(line, MAX_CONFIG_LINE_SIZE))) {
+    string conf_line = line;
+    string tag;
+    string value;
+    int offset, ltrim_index, rtrim_index;
+
+    if (conf_line[0] == '#') {
+      continue;
+    }
+
+    offset = conf_line.find(":", 0);
+    tag = conf_line.substr(0,offset);
+
+    // kill white space
+    istringstream tag_stream(tag, istringstream::in);
+    tag_stream >> tag;
+
+    if (tag.empty()) {
+      continue;
+    }
+
+    // basic whitespace trimming, we assume that the config handlers will deal with 
+    // tokenizing and further formatting
+    value = conf_line.substr(offset + 1, conf_line.length() - offset);
+    ltrim_index = value.find_first_not_of(" \t");
+    rtrim_index = value.find_last_not_of(" \t");
+    value = value.substr(ltrim_index, (rtrim_index + 1) - ltrim_index);
+
+    (*config)[tag] = value;
+  }
+  return 0;
+}