Begin converting URL struct into modern C++ class

dpid/dpi.cc

@@ -0,0 +1,97 @@
+/*
+   Copyright (C) 2003  Ferdi Franceschini <ferdif@optusnet.com.au>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*! \file
+ * Access functions for  ~/.dillo/dpi_socket_dir.
+ * The most useful function for dillo is a_Dpi_srs, it returns
+ * the full path to the dpid service request socket.
+ */
+
+#include <errno.h>
+#include <stdlib.h>  /* for exit */
+#include "dpid_common.h"
+#include "dpi.h"
+#include "misc_new.h"
+
+/*! \Return
+ * Returns path to the dpi_socket_dir file
+ * Use dFree to free memory
+ */
+char *a_Dpi_sockdir_file(void)
+{
+   char *dpi_socket_dir, *dirfile_path = "/.flenser/dpi_socket_dir";
+
+   dpi_socket_dir = dStrconcat(dGethomedir(), dirfile_path, NULL);
+   return dpi_socket_dir;
+}
+
+/*! Read socket directory path from ~/.dillo/dpi_socket_dir
+ * \Return
+ * socket directory path or NULL if the dpi_socket_dir file does not exist.
+ * \Note
+ * This function exits if ~/.dillo does not exist or
+ * if the dpi_socket_dir file cannot be opened for a
+ * reason other than it does not exist.
+ */
+
+char *a_Dpi_rd_dpi_socket_dir(char *dirname)
+{
+   FILE *dir;
+   char *sockdir = NULL, *rcpath;
+
+   rcpath = dStrconcat(dGethomedir(), "/.flenser", NULL);
+
+   /* If .dillo does not exist it is an unrecoverable error */
+   if (access(rcpath, F_OK) == -1) {
+      ERRMSG("a_Dpi_rd_dpi_socket_dir", "access", errno);
+      MSG_ERR(" - %s\n", rcpath);
+      exit(1);
+   }
+   dFree(rcpath);
+
+   if ((dir = fopen(dirname, "r")) != NULL) {
+      sockdir = dGetline(dir);
+      fclose(dir);
+   } else if (errno == ENOENT) {
+      ERRMSG("a_Dpi_rd_dpi_socket_dir", "fopen", errno);
+      MSG_ERR(" - %s\n", dirname);
+   } else if (errno != ENOENT) {
+      ERRMSG("a_Dpi_rd_dpi_socket_dir", "fopen", errno);
+      MSG_ERR(" - %s\n", dirname);
+      exit(1);
+   }
+
+   return sockdir;
+}
+
+/*!
+ * \Modifies
+ * srs_name
+ * \Return
+ * The service request socket name with its complete path.
+ */
+char *a_Dpi_srs(void)
+{
+   char *dirfile_path, *sockdir, *srs_name;
+
+   dirfile_path = a_Dpi_sockdir_file();
+   sockdir = dStrstrip(a_Dpi_rd_dpi_socket_dir(dirfile_path));
+   srs_name = dStrconcat(sockdir, "/", "dpid.srs", NULL);
+   dFree(sockdir);
+   dFree(dirfile_path);
+   return (srs_name);
+}