1 files changed, 105 insertions, 0 deletions

diff --git a/src/regress/lib/libc/popen/popen.c b/src/regress/lib/libc/popen/popen.c
new file mode 100644
index 0000000000..95ea67f31b
--- /dev/null
+++ b/src/regress/lib/libc/popen/popen.c
@@ -0,0 +1,105 @@
+/*      $NetBSD: popen.c,v 1.1 1999/09/30 09:23:23 tron Exp $   */
+
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Matthias Scheler.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the NetBSD
+ *      Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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/param.h>
+
+#include <err.h>
+#include <errno.h>
+#include <paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#define _PATH_CAT       "/bin/cat"
+#define BUFSIZE         (640*1024)
+                        /* 640KB ought to be enough for everyone. */
+#define DATAFILE        "popen.data"
+
+int
+main(int argc, char **argv)
+{
+        char *buffer, command[MAXPATHLEN];
+        int index, in;
+        FILE *pipe;
+
+        if ((buffer = malloc(BUFSIZE*sizeof(char))) == NULL)
+            err(1, NULL);
+
+        for (index=0; index<BUFSIZE; index++)
+            buffer[index]=arc4random();
+
+        (void)snprintf(command, sizeof(command), "%s >%s",
+                       _PATH_CAT, DATAFILE);
+        if ((pipe = popen(command, "w")) == NULL)
+            err(1, "popen write");
+
+        if (fwrite(buffer, sizeof(char), BUFSIZE, pipe) != BUFSIZE)
+            err(1, "write");
+
+        if (pclose(pipe) == -1)
+            err(1, "pclose");
+
+        (void)snprintf(command, sizeof(command), "%s %s",
+                       _PATH_CAT, DATAFILE);
+        if ((pipe = popen(command, "r")) == NULL)
+            err(1, "popen read");
+
+        index = 0;
+        while ((in = fgetc(pipe)) != EOF)
+            if (index == BUFSIZE) {
+                errno = EFBIG;
+                err(1, "read");
+            }
+            else
+                if ((char)in != buffer[index++]) {
+                    errno = EINVAL;
+                    err(1, "read");
+                }
+
+        if (index < BUFSIZE) {
+            errno = EIO;
+            err(1, "read");
+        }
+
+        if (pclose(pipe) == -1)
+            err(1, "pclose");
+
+        (void)unlink(DATAFILE);
+        return 0;
+}