BSD 4.4 Lite Usr.bin Sources

1 files changed, 115 insertions, 0 deletions

diff --git a/usr.bin/whereis/whereis.c b/usr.bin/whereis/whereis.c
new file mode 100644
index 0000000..8c75f5e
--- /dev/null
+++ b/usr.bin/whereis/whereis.c
@@ -0,0 +1,115 @@
+/*-
+ * Copyright (c) 1993
+ *	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 copyright[] =
+"@(#) Copyright (c) 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)whereis.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	struct stat sb;
+	size_t len;
+	int ch, sverrno, mib[2];
+	char *p, *t, *std, path[MAXPATHLEN];
+
+	while ((ch = getopt(argc, argv, "")) != EOF)
+		switch (ch) {
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	/* Retrieve the standard path. */
+	mib[0] = CTL_USER;
+	mib[1] = USER_CS_PATH;
+	if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1)
+		return (-1);
+	if (len == 0)
+		err(1, "user_cs_path: sysctl: zero length\n");
+	if ((std = malloc(len)) == NULL)
+		err(1, NULL);
+	if (sysctl(mib, 2, std, &len, NULL, 0) == -1) {
+		sverrno = errno;
+		free(std);
+		errno = sverrno;
+		err(1, "sysctl: user_cs_path");
+	}
+
+	/* For each path, for each program... */
+	for (; *argv; ++argv)
+		for (p = std;; *p++ = ':') {
+			t = p;
+			if ((p = strchr(p, ':')) != NULL) {
+				*p = '\0';
+				if (t == p)
+					t = ".";
+			} else
+				if (strlen(t) == 0)
+					t = ".";
+			(void)snprintf(path, sizeof(path), "%s/%s", t, *argv);
+			if (!stat(path, &sb))
+				(void)printf("%s\n", path);
+			if (p == NULL)
+				break;
+		}
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "whereis: program ...\n");
+	exit (1);
+}