initial import of 386bsd-0.1 sources

1 files changed, 81 insertions, 0 deletions

diff --git a/cribbage/instr.c b/cribbage/instr.c
new file mode 100644
index 00000000..d5ffdc0e
--- /dev/null
+++ b/cribbage/instr.c
@@ -0,0 +1,81 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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 REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)instr.c	5.2 (Berkeley) 2/28/91";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/errno.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "pathnames.h"
+
+instructions()
+{
+	extern int errno;
+	struct stat sb;
+	union wait pstat;
+	pid_t pid;
+	char *pager, *path;
+
+	if (stat(_PATH_INSTR, &sb)) {
+		(void)fprintf(stderr, "cribbage: %s: %s.\n", _PATH_INSTR,
+		    strerror(errno));
+		exit(1);
+	}
+	switch(pid = vfork()) {
+	case -1:
+		(void)fprintf(stderr, "cribbage: %s.\n", strerror(errno));
+		exit(1);
+	case 0:
+		if (!(path = getenv("PAGER")))
+			path = _PATH_MORE;
+		if (pager = rindex(path, '/'))
+			++pager;
+		pager = path;
+		execlp(path, pager, _PATH_INSTR, (char *)NULL);
+		(void)fprintf(stderr, "cribbage: %s.\n", strerror(errno));
+		_exit(1);
+	default:
+		do {
+			pid = waitpid(pid, (int *)&pstat, 0);
+		} while (pid == -1 && errno == EINTR);
+		if (pid == -1 || pstat.w_status)
+			exit(1);
+	}
+}