PSARC/2003/246 Filesystem Driven Device Naming

5050715 logical device names not created during early boot
6292952 devfsadm mishandles optarg
6362924 devfsadm secondary link generation is not zones aware
6413127 Integrate the Devname Project
6464196 bfu should remove pt_chmod, obsoleted by /dev filesystem

--HG--
rename : usr/src/cmd/pt_chmod/Makefile => deleted_files/usr/src/cmd/pt_chmod/Makefile
rename : usr/src/cmd/pt_chmod/pt_chmod.c => deleted_files/usr/src/cmd/pt_chmod/pt_chmod.c

1 files changed, 163 insertions, 0 deletions

diff --git a/usr/src/lib/libdevinfo/devinfo_finddev.c b/usr/src/lib/libdevinfo/devinfo_finddev.c
new file mode 100644
index 0000000000..1b89afb7b3
--- /dev/null
+++ b/usr/src/lib/libdevinfo/devinfo_finddev.c
@@ -0,0 +1,163 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <thread.h>
+#include <synch.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <dirent.h>
+#include <regex.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <libdevinfo.h>
+#include <sys/modctl.h>
+#include <syslog.h>
+
+#include <assert.h>
+
+
+struct finddevhdl {
+	int	npaths;
+	int	curpath;
+	char	**paths;
+};
+
+
+int
+device_exists(const char *devname)
+{
+	int	rv;
+
+	rv = modctl(MODDEVEXISTS, devname, strlen(devname));
+	return ((rv == 0) ? 1 : 0);
+}
+
+int
+finddev_readdir(const char *dir, finddevhdl_t *handlep)
+{
+	struct finddevhdl	*handle;
+	int			n;
+	int			rv;
+	int64_t			bufsiz;
+	char			*pathlist;
+	char			*p;
+	int			len;
+
+	*handlep = NULL;
+	handle = calloc(1, sizeof (struct finddevhdl));
+	if (handle == NULL)
+		return (ENOMEM);
+
+	handle->npaths = 0;
+	handle->curpath = 0;
+	handle->paths = NULL;
+
+	rv = modctl(MODDEVREADDIR, dir, strlen(dir), NULL, &bufsiz);
+	if (rv != 0) {
+		free(handle);
+		return (rv);
+	}
+
+	for (;;) {
+		assert(bufsiz != 0);
+		if ((pathlist = malloc(bufsiz)) == NULL) {
+			free(handle);
+			return (ENOMEM);
+		}
+
+		rv = modctl(MODDEVREADDIR, dir, strlen(dir),
+		    pathlist, &bufsiz);
+		if (rv == 0) {
+			for (n = 0, p = pathlist;
+			    (len = strlen(p)) > 0; p += len+1) {
+				n++;
+			}
+			handle->npaths = n;
+			handle->paths = calloc(n, sizeof (char *));
+			if (handle->paths == NULL) {
+				free(handle);
+				free(pathlist);
+				return (ENOMEM);
+			}
+			for (n = 0, p = pathlist;
+			    (len = strlen(p)) > 0; p += len+1, n++) {
+				handle->paths[n] = strdup(p);
+				if (handle->paths[n] == NULL) {
+					finddev_close((finddevhdl_t)handle);
+					free(pathlist);
+					return (ENOMEM);
+				}
+			}
+			*handlep = (finddevhdl_t)handle;
+			free(pathlist);
+			return (0);
+		}
+		free(pathlist);
+		switch (errno) {
+		case EAGAIN:
+			break;
+		case ENOENT:
+		default:
+			free(handle);
+			return (errno);
+		}
+	}
+	/*NOTREACHED*/
+}
+
+void
+finddev_close(finddevhdl_t arg)
+{
+	struct finddevhdl *handle = (struct finddevhdl *)arg;
+	int i;
+
+	for (i = 0; i < handle->npaths; i++) {
+		if (handle->paths[i])
+			free(handle->paths[i]);
+	}
+	free(handle->paths);
+	free(handle);
+}
+
+const char *
+finddev_next(finddevhdl_t arg)
+{
+	struct finddevhdl *handle = (struct finddevhdl *)arg;
+	const char *path = NULL;
+
+	if (handle->curpath < handle->npaths) {
+		path = handle->paths[handle->curpath];
+		handle->curpath++;
+	}
+	return (path);
+}