Add simple strlcpy regress

3 files changed, 123 insertions, 3 deletions

diff --git a/regress/lib/libc/Makefile b/regress/lib/libc/Makefile
index 16bd49dcd6e..0c81c5cea56 100644
--- a/regress/lib/libc/Makefile
+++ b/regress/lib/libc/Makefile
@@ -1,12 +1,12 @@
-#	$OpenBSD: Makefile,v 1.45 2014/12/02 17:48:34 millert Exp $
+#	$OpenBSD: Makefile,v 1.46 2014/12/02 20:23:05 millert Exp $
 
 SUBDIR+= _setjmp alloca arc4random-fork
 SUBDIR+= atexit basename cephes cxa-atexit db dirname env
 SUBDIR+= explicit_bzero fmemopen fnmatch fpclassify getcap getopt_long glob
 SUBDIR+= hsearch longjmp locale malloc mkstemp modf netdb open_memstream
 SUBDIR+= orientation popen printf
-SUBDIR+= regex setjmp setjmp-signal sigreturn sigsetjmp sprintf
-SUBDIR+= stdio_threading stpncpy strerror strlcat strnlen strtod strtol strtonum
+SUBDIR+= regex setjmp setjmp-signal sigreturn sigsetjmp sprintf stdio_threading
+SUBDIR+= stpncpy strerror strlcat strlcpy strnlen strtod strtol strtonum
 SUBDIR+= telldir time timingsafe vis
 
 .if defined(REGRESS_FULL) || make(clean) || make(cleandir) || make(obj)
diff --git a/regress/lib/libc/strlcpy/Makefile b/regress/lib/libc/strlcpy/Makefile
new file mode 100644
index 00000000000..921354432b4
--- /dev/null
+++ b/regress/lib/libc/strlcpy/Makefile
@@ -0,0 +1,5 @@
+#	$OpenBSD: Makefile,v 1.1 2014/12/02 20:23:05 millert Exp $
+
+PROG=	strlcpytest
+
+.include <bsd.regress.mk>
diff --git a/regress/lib/libc/strlcpy/strlcpytest.c b/regress/lib/libc/strlcpy/strlcpytest.c
new file mode 100644
index 00000000000..f2760c2f99f
--- /dev/null
+++ b/regress/lib/libc/strlcpy/strlcpytest.c
@@ -0,0 +1,115 @@
+/*	$OpenBSD: strlcpytest.c,v 1.1 2014/12/02 20:23:05 millert Exp $ */
+
+/*
+ * Copyright (c) 2014 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+	char *buf, *buf2, *cp, *ep;
+	int failures = 0;
+	size_t len, bufsize;
+
+	/* Enable malloc security options. */
+	setenv("MALLOC_OPTIONS", "S", 0);
+
+	bufsize = getpagesize(); /* trigger guard pages easily */
+	buf = malloc(bufsize);
+	buf2 = malloc(bufsize);
+	if (buf == NULL || buf2 == NULL) {
+		fprintf(stderr, "unable to allocate memory\n");
+		return 1;
+	}
+	memset(buf, 'a', bufsize);
+	ep = buf + bufsize;
+
+	/* Test copying to a zero-length NULL buffer. */
+	len = strlcpy(NULL, "abcd", 0);
+	if (len != 4) {
+		fprintf(stderr, "strlcpy: failed NULL buffer test (1a)");
+		failures++;
+	}
+
+	/* Test copying small string to a large buffer. */
+	len = strlcpy(buf, "abcd", bufsize);
+	if (len != 4) {
+		fprintf(stderr, "strlcpy: failed large buffer test (2a)");
+		failures++;
+	}
+	/* Make sure we only wrote where expected. */
+	if (memcmp(buf, "abcd", sizeof("abcd")) != 0) {
+		fprintf(stderr, "strlcpy: failed large buffer test (2b)");
+		failures++;
+	}
+	for (cp = buf + len + 1; cp < ep; cp++) {
+		if (*cp != 'a') {
+			fprintf(stderr, "strlcpy: failed large buffer test (2c)");
+			failures++;
+			break;
+		}
+	}
+
+	/* Test copying large string to a small buffer. */
+	memset(buf, 'a', bufsize);
+	memset(buf2, 'x', bufsize - 1);
+	buf2[bufsize - 1] = '\0';
+	len = strlcpy(buf, buf2, bufsize / 2);
+	if (len != bufsize - 1) {
+		fprintf(stderr, "strlcpy: failed small buffer test (3a)");
+		failures++;
+	}
+	/* Make sure we only wrote where expected. */
+	len = (bufsize / 2) - 1;
+	if (memcmp(buf, buf2, len) != 0 || buf[len] != '\0') {
+		fprintf(stderr, "strlcpy: failed small buffer test (3b)");
+		failures++;
+	}
+	for (cp = buf + len + 1; cp < ep; cp++) {
+		if (*cp != 'a') {
+			fprintf(stderr, "strlcpy: failed small buffer test (3c)");
+			failures++;
+			break;
+		}
+	}
+
+	/* Test copying to a 1-byte buffer. */
+	memset(buf, 'a', bufsize);
+	len = strlcpy(buf, "abcd", 1);
+	if (len != 4) {
+		fprintf(stderr, "strlcpy: failed 1-byte buffer test (4a)");
+		failures++;
+	}
+	/* Make sure we only wrote where expected. */
+	if (buf[0] != '\0') {
+		fprintf(stderr, "strlcpy: failed 1-byte buffer test (4b)");
+		failures++;
+	}
+	for (cp = buf + 1; cp < ep; cp++) {
+		if (*cp != 'a') {
+			fprintf(stderr, "strlcpy: failed 1-byte buffer test (4c)");
+			failures++;
+			break;
+		}
+	}
+
+	return failures;
+}