fish: Add setenv and unsetenv commands.

These commands allow you to manipulate the environment within
guestfish.

1 files changed, 69 insertions, 0 deletions

diff --git a/fish/setenv.c b/fish/setenv.c
new file mode 100644
index 00000000..c9a00136
--- /dev/null
+++ b/fish/setenv.c
@@ -0,0 +1,69 @@
+/* guestfish - the filesystem interactive shell
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fish.h"
+
+int
+run_setenv (const char *cmd, size_t argc, char *argv[])
+{
+  const char *var;
+  const char *value;
+
+  if (argc != 2) {
+    fprintf (stderr, _("use '%s VAR value' to set an environment variable\n"),
+             cmd);
+    return -1;
+  }
+
+  var = argv[0];
+  value = argv[1];
+
+  if (setenv (var, value, 1) == -1) {
+    perror ("setenv");
+    return -1;
+  }
+
+  return 0;
+}
+
+int
+run_unsetenv (const char *cmd, size_t argc, char *argv[])
+{
+  const char *var;
+
+  if (argc != 1) {
+    fprintf (stderr, _("use '%s VAR' to unset an environment variable\n"),
+             cmd);
+    return -1;
+  }
+
+  var = argv[0];
+
+  if (unsetenv (var) == -1) {
+    perror ("unsetenv");
+    return -1;
+  }
+
+  return 0;
+}