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authorGravatar Eric Andersen <andersen@codepoet.org>2001-03-29 22:48:33 +0000
committerGravatar Eric Andersen <andersen@codepoet.org>2001-03-29 22:48:33 +0000
commit84e229cfbe00d27ce81dad66c982bec0d50cdfd7 (patch)
tree3b13416dae3293c97fdb0a66309bfa79e40cafcd /coreutils/env.c
parente5c24dfd010732ab6b80a96ad2a5414499c496c0 (diff)
downloadbusybox-84e229cfbe00d27ce81dad66c982bec0d50cdfd7.tar.gz
busybox-84e229cfbe00d27ce81dad66c982bec0d50cdfd7.tar.bz2
Add in a new standalone env applet for fixing up app's environments
-Erik
Diffstat (limited to 'coreutils/env.c')
-rw-r--r--coreutils/env.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/coreutils/env.c b/coreutils/env.c
new file mode 100644
index 000000000..56577b611
--- /dev/null
+++ b/coreutils/env.c
@@ -0,0 +1,97 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * env implementation for busybox
+ *
+ * Copyright (c) 1988, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Original copyright notice is retained at the end of this file.
+ *
+ * Modified for BusyBox by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "busybox.h"
+
+extern int env_main(int argc, char** argv)
+{
+ char **ep, *p;
+ char *cleanenv[1];
+ int ch;
+
+ while ((ch = getopt(argc, argv, "-iu:")) != -1)
+ switch(ch) {
+ case '-':
+ case 'i':
+ environ = cleanenv;
+ cleanenv[0] = NULL;
+ break;
+ case 'u':
+ unsetenv(optarg);
+ break;
+ default:
+ show_usage();
+ }
+ for (argv += optind; *argv && (p = strchr(*argv, '=')); ++argv)
+ setenv(*argv, ++p, 1);
+ if (*argv) {
+ execvp(*argv, argv);
+ perror_msg_and_die("%s", *argv);
+ }
+ for (ep = environ; *ep; ep++)
+ printf("%s\n", *ep);
+ exit(EXIT_SUCCESS);
+}
+
+/*
+ * Copyright (c) 1988, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
+ * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
+ *
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+