implement server configuration loading/saving

1 files changed, 110 insertions, 0 deletions

diff --git a/bouncer/ini.cpp b/bouncer/ini.cpp
new file mode 100644
index 0000000..49ca38c
--- /dev/null
+++ b/bouncer/ini.cpp
@@ -0,0 +1,110 @@
+#include "ini.h"
+#include <stdio.h>
+#include <string.h>
+
+
+std::list<INI::Section> INI::load(const char *path) {
+	std::list<Section> sections;
+
+	FILE *f = fopen(path, "r");
+	if (!f)
+		return sections;
+
+	Section *section = 0;
+
+	for (;;) {
+		char line[4096];
+		if (!fgets(line, sizeof(line), f))
+			break;
+
+		int length = strlen(line);
+
+		// Get rid of the newline
+		if ((length > 0) && (line[length - 1] == '\n')) {
+			line[length - 1] = 0;
+			--length;
+		}
+
+		// Ignore empty lines, comments
+		if (!length)
+			continue;
+		if (line[0] == ';')
+			continue;
+		if (line[0] == '#')
+			continue;
+
+		// New section?
+		if ((length > 2) && (line[0] == '[') && (line[length - 1] == ']')) {
+			line[length - 1] = 0;
+
+			sections.push_back(Section());
+			section = &sections.back();
+			section->title = &line[1];
+
+		} else if (section) {
+			// We can only add values to a section if we have one :p
+
+			char *eq = strchr(line, '=');
+			if (eq) {
+				*eq = 0;
+				char *value = eq + 1;
+
+				section->data[line] = value;
+			}
+		}
+	}
+
+	fclose(f);
+
+	return sections;
+}
+
+
+bool INI::save(const char *path, const std::list<INI::Section> &sections) {
+	FILE *f = fopen(path, "w");
+	if (!f)
+		return false;
+
+
+	for (auto &section : sections) {
+		fputc('[', f);
+		fputs(section.title.c_str(), f);
+		fputs("]\n\n", f);
+
+		for (auto &i : section.data) {
+			fputs(i.first.c_str(), f);
+			fputc('=', f);
+			fputs(i.second.c_str(), f);
+			fputc('\n', f);
+		}
+
+		fputc('\n', f);
+	}
+
+
+	fclose(f);
+
+	return true;
+}
+
+
+
+/*
+int main(int argc, char **argv) {
+	INI::Section a, b;
+
+	a.title = "boop";
+	a.data["a"] = "b";
+	a.data["c"] = "d";
+
+	b.title = "boop2";
+	b.data["a"] = "b";
+	b.data["c"] = "d";
+
+	std::list<INI::Section> sections = { a, b };
+	INI::save("tryme.ini", sections);
+
+	std::list<INI::Section> munged = INI::load("tryme.ini");
+	INI::save("tryme2.ini", munged);
+}
+*/