From: Alan Cox <alan@linux.intel.com>
Date: Fri, 22 May 2015 13:24:09 +0000 (+0100)
Subject: env: add missing app
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=54ef17293cfde268627ed5b9d5f9046388c77fc2;p=FUZIX.git

env: add missing app
---

diff --git a/Applications/util/env.c b/Applications/util/env.c
new file mode 100644
index 00000000..e6b2e27f
--- /dev/null
+++ b/Applications/util/env.c
@@ -0,0 +1,112 @@
+/*
+
+    Copyright 1999 by Philip Homburg and Kees Bot.
+    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.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+
+    Kees J. Bot (kjb@cs.vu.nl)
+    Philip Homburg (philip@cs.vu.nl)
+*/
+
+
+
+/*	env 1.0 - Set environment for command		Author: Kees J. Bot
+ *								17 Dec 1997
+ */
+#define nil 0
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+int main(int argc, char *argv[])
+{
+	int i;
+	int iflag= 0;
+	int aflag= 0;
+	extern char **environ;
+
+	i= 1;
+	while (i < argc && argv[i][0] == '-') {
+		char *opt= argv[i++] + 1;
+
+		if (opt[0] == '-' && opt[1] == 0) break;	/* -- */
+
+		if (opt[0] == 0) iflag= 1;			/* - */
+
+		while (*opt != 0) switch (*opt++) {
+		case 'i':
+			iflag= 1;	/* Clear environment. */
+			break;
+		case 'a':		/* Specify arg 0 separately. */
+			aflag= 1;
+			break;
+		default:
+			fprintf(stderr,
+		"Usage: env [-ia] [name=value] ... [utility [argument ...]]\n");
+			exit(1);
+		}
+	}
+
+	/* Clear the environment if -i. */
+	if (iflag) *environ= nil;
+
+	/* Set the new environment strings. */
+	while (i < argc && strchr(argv[i], '=') != nil) {
+		if (putenv(argv[i]) != 0) {
+			fprintf(stderr, "env: Setting '%s' failed: %s\n",
+				argv[i], strerror(errno));
+			exit(1);
+		}
+		i++;
+	}
+
+	if (i >= argc) {
+		/* No utility given; print environment. */
+		char **ep;
+
+		for (ep= environ; *ep != nil; ep++) {
+			if (puts(*ep) == EOF) {
+				fprintf(stderr, "env: %s\n", strerror(errno));
+				exit(1);
+			}
+		}
+		return 0;
+	} else {
+		char *util, **args;
+		int err;
+
+		util= argv[i];
+		args= argv + i;
+		if (aflag) args++;
+		(void) execvp(util, args);
+		err= errno;
+		fprintf(stderr, "env: Can't execute %s: %s\n",
+			util, strerror(err));
+		return err == ENOENT ? 127 : 126;
+	}
+}