Added userland/testbin

userland/testbin/readwritetest/Makefile

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+# Makefile for readwritetest
+
+TOP=../../..
+.include "$(TOP)/mk/os161.config.mk"
+
+PROG=readwritetest
+SRCS=readwritetest.c
+BINDIR=/testbin
+
+.include "$(TOP)/mk/os161.prog.mk"
+

userland/testbin/readwritetest/readwritetest.c

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+/*
+ * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
+ *	The President and Fellows of Harvard College.
+ *
+ * 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. 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 UNIVERSITY 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 UNIVERSITY 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.
+ */
+
+/*
+ * readwritetest.c
+ *
+ * 	Tests whether read and write syscalls works
+ * 	This should run correctly when open, write and read are
+ * 	implemented correctly.
+ *
+ * NOTE: While checking, this test only checks the first 31 characters.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <err.h>
+#include <test161/test161.h>
+
+#define FILENAME "readwritetest.dat"
+
+static const char *MAGIC = "h4xa0rRq0Vgbc96tiYJ^!#nXzZSAKPO";
+
+int
+main(int argc, char **argv)
+{
+
+	// 23 Mar 2012 : GWA : Assume argument passing is *not* supported.
+
+	(void) argc;
+	(void) argv;
+
+	int fd, len;
+	int expected_len = strlen(MAGIC);
+
+	fd = open(FILENAME, O_WRONLY | O_CREAT | O_TRUNC);
+	if(fd < 0) {
+		err(1, "Failed to open file.\n");
+	}
+
+	len = write(fd, MAGIC, expected_len);
+	if(len != expected_len) {
+		err(1, "writetest expected to write %d bytes to readwritetest.dat."
+			" Syscall reports that it wrote %d bytes.\n"
+			"Is your write syscall returning the right value?\n",
+			expected_len, len);
+	}
+	// Now, we test
+	// close() may not be implemented.
+	// So just try to open the file again.
+	fd = open(FILENAME, O_RDONLY);
+	if(fd < 0) {
+		err(1, "Failed to open file.\n");
+	}
+
+	char buf[32];
+	len = read(fd, buf, expected_len);
+	if(len != 31) {
+		err(1, "readtest expected to read %d bytes from readtest.dat."
+			" Only read %d bytes.\n",
+			expected_len, len);
+	}
+
+	if(strcmp(MAGIC, buf) != 0) {
+		err(1, "Did not match MAGIC string.\n"
+			"MAGIC: %s\n"
+			"GOT  : %s\n", MAGIC, buf);
+	}
+
+	secprintf(SECRET, MAGIC, "/testbin/readwritetest");
+	// Exit may not be implemented. So crash.
+	crash_prog();
+	return 0;
+}