8 files changed, 702 insertions, 0 deletions

diff --git a/tools/regression/environ/Makefile b/tools/regression/environ/Makefile
new file mode 100644
index 000000000000..62720d28abd1
--- /dev/null
+++ b/tools/regression/environ/Makefile
@@ -0,0 +1,14 @@
+#
+# $FreeBSD$
+#
+PROGS=	envctl retention timings
+
+all clean test:
+.for target in ${.TARGET}
+.for prog in ${PROGS}
+	@${MAKE} -f Makefile.${prog} ${target}
+.endfor
+.if make(clean)
+	rm -f *~
+.endif
+.endfor
diff --git a/tools/regression/environ/Makefile.envctl b/tools/regression/environ/Makefile.envctl
new file mode 100644
index 000000000000..6298a20646dd
--- /dev/null
+++ b/tools/regression/environ/Makefile.envctl
@@ -0,0 +1,16 @@
+#
+# $FreeBSD$
+#
+SRCS=	envctl.c
+PROG=	envctl
+
+CFLAGS+=-Wall -I../../../include
+
+CLEANFILES=	${PROG}.core
+
+NO_MAN=	yes
+
+.include <bsd.prog.mk>
+
+test: ${PROG}
+	@sh envtest.t
diff --git a/tools/regression/environ/Makefile.retention b/tools/regression/environ/Makefile.retention
new file mode 100644
index 000000000000..9e0687f484fe
--- /dev/null
+++ b/tools/regression/environ/Makefile.retention
@@ -0,0 +1,16 @@
+#
+# $FreeBSD$
+#
+SRCS=	retention.c
+PROG=	retention
+
+CFLAGS+=-Wall -I../../../include
+
+CLEANFILES=	*~ ${PROG}.core
+
+NO_MAN=	yes
+
+.include <bsd.prog.mk>
+
+test: ${PROG}
+	@./${PROG}
diff --git a/tools/regression/environ/Makefile.timings b/tools/regression/environ/Makefile.timings
new file mode 100644
index 000000000000..88c4f7c7280b
--- /dev/null
+++ b/tools/regression/environ/Makefile.timings
@@ -0,0 +1,16 @@
+#
+# $FreeBSD$
+#
+SRCS=	timings.c
+PROG=	timings
+
+CFLAGS+=-Wall -I../../../include
+
+CLEANFILES=	${PROG}.core
+
+NO_MAN=	yes
+
+.include <bsd.prog.mk>
+
+test: ${PROG}
+	@./timings
diff --git a/tools/regression/environ/envctl.c b/tools/regression/environ/envctl.c
new file mode 100644
index 000000000000..2681741da723
--- /dev/null
+++ b/tools/regression/environ/envctl.c
@@ -0,0 +1,154 @@
+/*-
+ * Copyright (c) 2007 Sean C. Farley <scf@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification, immediately at the beginning of the file.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <errno.h>
+#include <libgen.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+
+extern char **environ;
+
+
+static void
+dump_environ(void)
+{
+	char **environPtr;
+
+	for (environPtr = environ; *environPtr != NULL; *environPtr++)
+		printf("%s\n", *environPtr);
+
+	return;
+}
+
+
+static void
+usage(const char *program)
+{
+	fprintf(stderr, "Usage:  %s [-DGUcht] [-gu name] [-p name=value] "
+	    "[(-S|-s name) value overwrite]\n\n"
+	    "Options:\n"
+	    "  -D\t\t\t\tDump environ\n"
+	    "  -G name\t\t\tgetenv(NULL)\n"
+	    "  -S value overwrite\t\tsetenv(NULL, value, overwrite)\n"
+	    "  -U\t\t\t\tunsetenv(NULL)\n"
+	    "  -c\t\t\t\tClear environ variable\n"
+	    "  -g name\t\t\tgetenv(name)\n"
+	    "  -h\t\t\t\tHelp\n"
+	    "  -p name=value\t\t\tputenv(name=value)\n"
+	    "  -s name value overwrite\tsetenv(name, value, overwrite)\n"
+	    "  -t\t\t\t\tOutput is suitable for testing (no newlines)\n"
+	    "  -u name\t\t\tunsetenv(name)\n",
+	    basename(program));
+
+	return;
+}
+
+
+int
+main(int argc, char **argv)
+{
+	char *cleanEnv[] = { NULL };
+	char arg;
+	const char *eol = "\n";
+	const char *value;
+
+	if (argc == 1) {
+		usage(argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	while ((arg = getopt(argc, argv, "DGS:Ucg:hp:s:tu:")) != -1) {
+		switch (arg) {
+			case 'D':
+				errno = 0;
+				dump_environ();
+				break;
+
+			case 'c':
+				environ = cleanEnv;
+				break;
+
+			case 'G':
+				value = getenv(NULL);
+				printf("%s%s", value == NULL ? "" : value, eol);
+				break;
+
+			case 'g':
+				value = getenv(optarg);
+				printf("%s%s", value == NULL ? "" : value, eol);
+				break;
+
+			case 'p':
+				errno = 0;
+				printf("%d %d%s", putenv(optarg), errno, eol);
+				break;
+
+			case 'S':
+				errno = 0;
+				printf("%d %d%s", setenv(NULL, optarg,
+				    atoi(argv[optind])), errno, eol);
+				optind += 1;
+				break;
+
+			case 's':
+				errno = 0;
+				printf("%d %d%s", setenv(optarg, argv[optind],
+				    atoi(argv[optind + 1])), errno, eol);
+				optind += 2;
+				break;
+
+			case 't':
+				eol = " ";
+				break;
+
+			case 'U':
+				printf("%d %d%s", unsetenv(NULL), errno, eol);
+				break;
+
+			case 'u':
+				printf("%d %d%s", unsetenv(optarg), errno, eol);
+				break;
+
+			case 'h':
+			default:
+				usage(argv[0]);
+				exit(EXIT_FAILURE);
+		}
+	}
+
+	// Output a closing newline in test mode.
+	if (eol[0] == ' ')
+		printf("\n");
+
+	return (EXIT_SUCCESS);
+}
diff --git a/tools/regression/environ/envtest.t b/tools/regression/environ/envtest.t
new file mode 100644
index 000000000000..e3aca952e2da
--- /dev/null
+++ b/tools/regression/environ/envtest.t
@@ -0,0 +1,182 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Sean C. Farley <scf@FreeBSD.org>
+# 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,
+#    without modification, immediately at the beginning of the file.
+# 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 AUTHOR ``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 AUTHOR 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.
+#
+# $FreeBSD$
+
+
+# Initialization.
+testndx=0
+
+
+# Testing function.
+run_test()
+{
+	lasttest="${@}"
+	result=`./envctl -t "${@}"`
+
+	if [ ${?} -ne 0 ]
+	then
+		echo "Test program failed" >&2
+		exit 1
+	fi
+
+	return
+}
+
+
+# Perform test on results.
+check_result()
+{
+	testndx=$((testndx + 1))
+
+	echo "${result}" | sed 's/[ \t]*$//' | grep -q "^${@}$"
+	if [ ${?} -eq 0 ]
+	then
+		echo "ok ${testndx}"
+	else
+		echo "not ok ${testndx} - '${lasttest}'"
+	fi
+
+	return
+}
+
+
+#
+# Regression tests
+#
+
+# Setup environment for tests.
+readonly BAR="bar"
+readonly NEWBAR="newbar"
+export FOO=${BAR}
+
+
+# Gets from environ.
+run_test -g FOO
+check_result "${FOO}"
+
+run_test -c -g FOO
+check_result ""
+
+run_test -g FOOBAR
+check_result ""
+
+run_test -c -g FOOBAR
+check_result ""
+
+run_test -G
+check_result ""
+
+
+# Sets.
+run_test -s FOO ${NEWBAR} 0 -g FOO
+check_result "0 0 ${BAR}"
+
+run_test -s FOO ${NEWBAR} 1 -g FOO
+check_result "0 0 ${NEWBAR}"
+
+run_test -c -s FOO ${NEWBAR} 0 -g FOO
+check_result "0 0 ${NEWBAR}"
+
+run_test -c -s FOO ${NEWBAR} 1 -g FOO
+check_result "0 0 ${NEWBAR}"
+
+run_test -s "FOO=" ${NEWBAR} 1 -g FOO
+check_result "-1 22 ${BAR}"
+
+run_test -s "=FOO" ${NEWBAR} 1
+check_result "-1 22"
+
+run_test -s "=" ${NEWBAR} 1
+check_result "-1 22"
+
+run_test -s "" ${NEWBAR} 1
+check_result "-1 22"
+
+run_test -S ${NEWBAR} 1
+check_result "-1 22"
+
+run_test -s FOO ${NEWBAR} 1 -s FOO ${BAR} 1 -g FOO
+check_result "0 0 0 0 ${BAR}"
+
+run_test -c -s FOO ${NEWBAR} 1 -s FOO ${BAR} 1 -g FOO
+check_result "0 0 0 0 ${BAR}"
+
+run_test -s FOO ${NEWBAR} 1 -s FOO ${BAR} 1 -s FOO ${NEWBAR} 1 -g FOO
+check_result "0 0 0 0 0 0 ${NEWBAR}"
+
+run_test -s FOO ${NEWBAR} 1 -s FOO ${BAR} 1 -s FOO ${NEWBAR} 1 -s FOO ${BAR} 1\
+	-g FOO
+check_result "0 0 0 0 0 0 0 0 ${BAR}"
+
+
+# Unsets.
+run_test -u FOO -g FOO
+check_result "0 0"
+
+run_test -c -u FOO -g FOO
+check_result "0 0"
+
+run_test -U
+check_result "-1 22"
+
+run_test -u ""
+check_result "-1 22"
+
+run_test -u "=${BAR}"
+check_result "-1 22"
+
+run_test -c -s FOO ${NEWBAR} 1 -g FOO -u FOO -g FOO
+check_result "0 0 ${NEWBAR} 0 0"
+
+
+# Puts.
+run_test -p FOO=${NEWBAR} -g FOO
+check_result "0 0 ${NEWBAR}"
+
+run_test -c -p FOO=${NEWBAR} -g FOO
+check_result "0 0 ${NEWBAR}"
+
+run_test -p FOO -g FOO
+check_result "-1 22 ${BAR}"
+
+run_test -p FOO=${BAR} -p FOO=${NEWBAR} -g FOO
+check_result "0 0 0 0 ${NEWBAR}"
+
+run_test -p FOO=${BAR} -s FOO ${NEWBAR} 1 -g FOO
+check_result "0 0 0 0 ${NEWBAR}"
+
+run_test -s FOO ${NEWBAR} 1 -p FOO=${BAR} -g FOO
+check_result "0 0 0 0 ${BAR}"
+
+run_test -p FOO=${BAR} -u FOO
+check_result "0 0 0 0"
+
+run_test -p FOO=${BAR} -s FOO ${NEWBAR} 1 -u FOO
+check_result "0 0 0 0 0 0"
+
+run_test -s FOO ${NEWBAR} 1 -p FOO=${BAR} -u FOO
+check_result "0 0 0 0 0 0"
diff --git a/tools/regression/environ/retention.c b/tools/regression/environ/retention.c
new file mode 100644
index 000000000000..7f75cd100e15
--- /dev/null
+++ b/tools/regression/environ/retention.c
@@ -0,0 +1,109 @@
+/*-
+ * Copyright (c) 2007 Sean C. Farley <scf@FreeBSD.org>
+ * 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,
+ *    without modification, immediately at the beginning of the file.
+ * 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 AUTHOR ``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 AUTHOR 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.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+
+extern char **environ;
+const char *envName = "FOOBAR";
+const char *envValSmall = "Hi";
+const char *envValLarge = "Hi, again";
+const char *envValAny = "Any value";
+
+
+int
+main(int argc, char **argv)
+{
+	const char *env1 = NULL;
+	const char *env2 = NULL;
+	const char *env3 = NULL;
+	const char *env4 = NULL;
+	const char *env5 = NULL;
+	int testNdx;
+
+	/* Clean slate. */
+	environ = NULL;
+	testNdx = 0;
+
+	/* Initial value of variable. */
+	if (getenv(envName) != NULL)
+		printf("not ");
+	printf("ok %d - getenv(\"%s\")\n", ++testNdx, envName);
+
+	/* Set value of variable to smaller value and get value. */
+	if ((setenv(envName, envValSmall, 1) != 0) ||
+	    ((env1 = getenv(envName)) == NULL) ||
+	    (strcmp(env1, envValSmall) != 0))
+		printf("not ");
+	printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
+	    envValSmall);
+
+	/* Unset variable. */
+	if ((unsetenv(envName) == -1) || ((env2 = getenv(envName)) != NULL))
+		printf("not ");
+	printf("ok %d - unsetenv(\"%s\")\n", ++testNdx, envName);
+
+	/* Set variable to bigger value and get value. */
+	if ((setenv(envName, envValLarge, 1) != 0) ||
+	    ((env3 = getenv(envName)) == NULL) ||
+	    (strcmp(env3, envValLarge) != 0))
+		printf("not ");
+	printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
+	    envValLarge);
+
+	/* Set variable to smaller value and get value. */
+	if ((setenv(envName, envValSmall, 1) != 0) ||
+	    ((env4 = getenv(envName)) == NULL) ||
+	    (strcmp(env4, envValSmall) != 0))
+		printf("not ");
+	printf("ok %d - setenv(\"%s\", \"%s\", 1)\n", ++testNdx, envName,
+	    envValSmall);
+
+	/* Set variable to any value without overwrite and get value. */
+	if ((setenv(envName, envValAny, 0) != 0) ||
+	    ((env5 = getenv(envName)) == NULL) ||
+	    (strcmp(env5, envValAny) == 0))
+		printf("not ");
+	printf("ok %d - setenv(\"%s\", \"%s\", 0)\n", ++testNdx, envName,
+	    envValAny);
+
+	/*
+	 * Verify FreeBSD-ism about allowing a program to keep old pointers without
+	 * risk of segfaulting.
+	 */
+	if ((strcmp(env1, envValSmall) != 0) ||
+	    (strcmp(env3, envValSmall) != 0) ||
+	    (strcmp(env4, envValSmall) != 0))
+		printf("not ");
+	printf("ok %d - old variables point to valid memory\n", ++testNdx);
+
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/regression/environ/timings.c b/tools/regression/environ/timings.c
new file mode 100644
index 000000000000..1bf3c910a108
--- /dev/null
+++ b/tools/regression/environ/timings.c
@@ -0,0 +1,195 @@
+/*-
+ * Copyright (c) 2007 Sean C. Farley <scf@FreeBSD.org>
+ * 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 AUTHOR 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 AUTHOR 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.
+ */
+#include <sys/time.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+
+const char value1[] = "Large ------------------ value";
+const char value2[] = "Small -- value";
+char nameValuePair[] = "less=more";
+const char name[] = "PATH";
+const char name2[] = "SHELL";
+const int MaxIterations = 1000000;
+const char Tabs[] = "\t\t\t";
+
+
+static int
+report_time(const char *action, struct timeval *startTime,
+    struct timeval *endTime)
+{
+	int actionLen;
+	int numTabs;
+
+	actionLen = strlen(action);
+	numTabs = 3 - actionLen / 8;
+
+	return (printf("Time spent executing %s:%.*s%f\n", action, numTabs, Tabs,
+	    (endTime->tv_sec - startTime->tv_sec) +
+	    (double)(endTime->tv_usec - startTime->tv_usec) / 1000000));
+}
+
+
+int
+main(int argc, char **argv)
+{
+	int iterations;
+	struct timeval endTime;
+	struct timeval startTime;
+
+	/*
+	 * getenv() on the existing environment.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		if (getenv(name) == NULL)
+			err(EXIT_FAILURE, "getenv(name)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("getenv(name)", &startTime, &endTime);
+
+
+	/*
+	 * setenv() a variable with a large value.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		if (setenv(name, value1, 1) == -1)
+			err(EXIT_FAILURE, "setenv(name, value1, 1)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("setenv(name, value1, 1)", &startTime, &endTime);
+
+
+	/*
+	 * getenv() the new variable on the new environment.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		/* Set large value to variable. */
+		if (getenv(name) == NULL)
+			err(EXIT_FAILURE, "getenv(name)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("getenv(name)", &startTime, &endTime);
+
+
+	/*
+	 * getenv() a different variable on the new environment.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		/* Set large value to variable. */
+		if (getenv(name2) == NULL)
+			err(EXIT_FAILURE, "getenv(name2)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("getenv(name2)", &startTime, &endTime);
+
+
+	/*
+	 * setenv() a variable with a small value.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		if (setenv(name, value2, 1) == -1)
+			err(EXIT_FAILURE, "setenv(name, value2, 1)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("setenv(name, value2, 1)", &startTime, &endTime);
+
+
+	/*
+	 * getenv() a different variable on the new environment.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		/* Set large value to variable. */
+		if (getenv(name2) == NULL)
+			err(EXIT_FAILURE, "getenv(name)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("getenv(name)", &startTime, &endTime);
+
+
+	/*
+	 * getenv() a different variable on the new environment.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		/* Set large value to variable. */
+		if (getenv(name2) == NULL)
+			err(EXIT_FAILURE, "getenv(name2)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("getenv(name2)", &startTime, &endTime);
+
+
+	/*
+	 * putenv() a variable with a small value.
+	 */
+	gettimeofday(&startTime, NULL);
+
+	/* Iterate over setting variable. */
+	for (iterations = 0; iterations < MaxIterations; iterations++)
+		if (putenv(nameValuePair) == -1)
+			err(EXIT_FAILURE, "putenv(nameValuePair)");
+
+	gettimeofday(&endTime, NULL);
+
+	report_time("putenv(nameValuePair)", &startTime, &endTime);
+
+
+	exit(EXIT_SUCCESS);
+}