Add little libpq crazyness test to sandbox

sandbox/pqcrazyness/escaping.c

@@ -0,0 +1,40 @@
+#include <string.h>
+#include <stdlib.h>
+#include <libpq-fe.h>
+
+/* Compile me with:
+ * 
+ *   gcc -p escaping -I$(pg_config --includedir) escaping.c -lpq"
+ *
+ * then:
+ *
+ *   ./escaping dbname=test foo\\\\bar
+*/
+
+int main(int argc, char** argv)
+{
+	PGconn* conn;
+	int rl, len;
+	char* result;
+
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s [dsn] [string]\n", argv[0]);
+		return 1;
+	}
+
+	len = strlen(argv[1]);
+	result = malloc(len * 2 * sizeof(char));
+
+	rl = PQescapeString(result, argv[2], len);
+	result[rl] = '\0';
+	printf("%s\n", result);
+
+	conn = PQconnectdb(argv[1]);
+
+	rl = PQescapeString(result, argv[2], len);
+	result[rl] = '\0';
+	printf("%s\n", result);
+
+	return 0;
+}
+