s390-tools/s390-tools-sles15sp1-01-zdev-use-libutil-provided-path-functions.patch

Subject: zdev: use libutil provided path functions
From: Peter Oberparleiter <oberpar@linux.ibm.com>

Summary:     zdev: Add support for handling I/O configuration data
Description: LPARs that are running in IBM Dynamic Partition Manager (DPM) mode
             can access a firmware-generated I/O configuration data file that
             contains s390-specific information about available I/O devices
             such as qeth device numbers and parameters, and FCP device IDs.

             This data file is intended to remove the need for users to
             manually enter the corresponding device data during installation.

             Linux kernels with the corresponding support make the I/O
             configuration data available at the following location:

               /sys/firmware/sclp_sd/config/data

             This patch set adds support for handling this data file using the
             chzdev and lszdev tools:

               - I/O configuration data can be applied using chzdev's --import
                 option
               - Initial RAM-Disk scripts automatically apply the
                 I/O configuration data to the system configuration
               - lszdev can be used to display the applied auto-configuration
                 data
               - chzdev can be used to manually override the
                 auto-configuration data

Upstream-ID: d542138868153a36c3de6a21c3dea56125157e26
Problem-ID:  LS1604

Upstream-Description:

             zdev: use libutil provided path functions

             Closes: #20

             Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
             Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
             Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>


Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
---
 zdev/include/misc.h      |    4 --
 zdev/src/ccw.c           |   20 ++++--------
 zdev/src/ccwgroup.c      |    7 ++--
 zdev/src/chzdev.c        |    3 +
 zdev/src/ctc_auto.c      |    6 ++-
 zdev/src/device.c        |    5 ++-
 zdev/src/devnode.c       |    8 +++-
 zdev/src/generic_ccw.c   |    4 +-
 zdev/src/lcs_auto.c      |    6 ++-
 zdev/src/misc.c          |   63 ---------------------------------------
 zdev/src/modprobe.c      |    8 +++-
 zdev/src/module.c        |    8 +++-
 zdev/src/qeth_auto.c     |    4 +-
 zdev/src/root.c          |    4 +-
 zdev/src/scsi.c          |    4 +-
 zdev/src/select.c        |    4 +-
 zdev/src/udev.c          |    4 +-
 zdev/src/udev_ccw.c      |   10 +++---
 zdev/src/udev_ccwgroup.c |   10 +++---
 zdev/src/udev_zfcp_lun.c |    8 +++-
 zdev/src/zfcp_lun.c      |   16 +++++----
 21 files changed, 84 insertions(+), 122 deletions(-)

--- a/zdev/include/misc.h
+++ b/zdev/include/misc.h
@@ -157,10 +157,6 @@ char *misc_asprintf(const char *, ...);
 int misc_system(err_t, const char *, ...);
 bool misc_read_dir(const char *, struct util_list *,
 		       bool (*)(const char *, void *), void *);
-bool path_exists(const char *);
-bool file_exists(const char *);
-bool file_writable(const char *);
-bool dir_exists(const char *);
 bool file_is_devnode(const char *);
 exit_code_t remove_file(const char *);
 char *misc_read_text_file(const char *, int, err_t);
--- a/zdev/src/ccw.c
+++ b/zdev/src/ccw.c
@@ -14,6 +14,7 @@
 #include <string.h>
 
 #include "lib/util_base.h"
+#include "lib/util_path.h"
 
 #include "attrib.h"
 #include "ccw.h"
@@ -1165,15 +1166,10 @@ out:
 
 static void read_grouped(struct ccw_devinfo *info, const char *path)
 {
-	char *file_path;
-
-	file_path = misc_asprintf("%s/group_device", path);
-	if (path_exists(file_path))
+	if (util_path_exists("%s/group_device", path))
 		info->grouped = 1;
 	else
 		info->grouped = 0;
-
-	free(file_path);
 }
 
 static void read_cutype(struct ccw_devinfo *info, const char *path)
@@ -1229,7 +1225,7 @@ static struct ccw_devinfo *ccw_devinfo_r
 
 	id = ccw_devid_to_str(devid);
 	path = path_get_ccw_device(NULL, id);
-	if (!dir_exists(path))
+	if (!util_path_is_dir(path))
 		goto out;
 
 	info->exists = 1;
@@ -1354,7 +1350,7 @@ bool ccw_exists(const char *drv, const c
 	if (!path)
 		return false;
 
-	rc = dir_exists(path);
+	rc = util_path_is_dir(path);
 	free(path);
 
 	return rc;
@@ -1428,7 +1424,7 @@ static exit_code_t ccw_st_read_active(st
 	state->definable = 0;
 
 	path = path_get_ccw_device(drv, id);
-	if (path_exists(path)) {
+	if (util_path_exists(path)) {
 		state->exists = 1;
 		device_read_active_settings(dev, scope);
 	} else
@@ -1641,7 +1637,7 @@ static void ccw_st_add_errors(struct sub
 	if (!path)
 		return;
 
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		strlist_add(errors, "CCW device %s does not exist", id);
 		goto out;
 	}
@@ -1662,9 +1658,7 @@ static void ccw_st_add_errors(struct sub
 			    "paths", id);
 		goto out;
 	}
-	free(apath);
-	apath = misc_asprintf("%s/driver", path);
-	if (!path_exists(apath)) {
+	if (!util_path_exists("%s/driver", path)) {
 		strlist_add(errors, "CCW device %s is not bound to a driver",
 			    id);
 		goto out;
--- a/zdev/src/ccwgroup.c
+++ b/zdev/src/ccwgroup.c
@@ -12,6 +12,7 @@
 #include <string.h>
 
 #include "lib/util_base.h"
+#include "lib/util_path.h"
 
 #include "attrib.h"
 #include "ccw.h"
@@ -557,7 +558,7 @@ static bool read_full_id(struct ccwgroup
 	bool result = false;
 
 	path = path_get_ccwgroup_device(drv, id);
-	if (!dir_exists(path))
+	if (!util_path_is_dir(path))
 		goto out;
 
 	memset(&devid, 0, sizeof(struct ccwgroup_devid));
@@ -625,7 +626,7 @@ static void ccwgroup_add_ids(const char
 	path = path_get_ccwgroup_devices(drv);
 	if (mod)
 		module_try_load_once(mod, path);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, get_ids_cb, &cb_data);
 	free(path);
 }
@@ -663,7 +664,7 @@ static exit_code_t ccwgroup_st_read_acti
 	state->definable = 0;
 
 	path = ccwgroup_get_dev_path_by_devid(drv, devid);
-	if (path_exists(path)) {
+	if (util_path_exists(path)) {
 		state->exists = 1;
 		device_read_active_settings(dev, scope);
 	} else
--- a/zdev/src/chzdev.c
+++ b/zdev/src/chzdev.c
@@ -16,6 +16,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "lib/util_path.h"
 #include "lib/zt_common.h"
 
 #include "attrib.h"
@@ -2502,7 +2503,7 @@ static exit_code_t do_export(struct opti
 		info("Exporting configuration data to standard output\n");
 	} else {
 		info("Exporting configuration data to %s\n", opts->export);
-		if (!path_exists(opts->export)) {
+		if (!util_path_exists(opts->export)) {
 			rc = path_create(opts->export);
 			if (rc)
 				return rc;
--- a/zdev/src/ctc_auto.c
+++ b/zdev/src/ctc_auto.c
@@ -9,6 +9,8 @@
 
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "ccw.h"
 #include "ccwgroup.h"
 #include "ctc.h"
@@ -125,13 +127,13 @@ static struct util_list *read_sorted_ctc
 	/* Add CCW devices bound to the CTC CCW device driver. */
 	module_try_load_once(CTC_MOD_NAME, NULL);
 	path = path_get_sys_bus_drv(CCW_BUS_NAME, CTC_CCWDRV_NAME);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, infos);
 	free(path);
 
 	/* Add CCW devices bound to the LCS CCW device driver. */
 	path = path_get_sys_bus_drv(CCW_BUS_NAME, LCS_CCWDRV_NAME);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, infos);
 	free(path);
 
--- a/zdev/src/device.c
+++ b/zdev/src/device.c
@@ -11,6 +11,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "device.h"
 #include "devtype.h"
@@ -480,7 +482,8 @@ void device_read_active_settings(struct
 		a = attrib_find(st->dev_attribs, name);
 		s = setting_list_apply_actual(dev->active.settings, a, name,
 					      value);
-		if (link || (scope == scope_all && !file_writable(path)))
+		if (link || (scope == scope_all &&
+			     !util_path_is_writable(path)))
 			s->readonly = 1;
 		if (link)
 			free(link);
--- a/zdev/src/devnode.c
+++ b/zdev/src/devnode.c
@@ -15,6 +15,8 @@
 #include <sys/sysmacros.h>
 #include <unistd.h>
 
+#include "lib/util_path.h"
+
 #include "devnode.h"
 #include "misc.h"
 #include "path.h"
@@ -230,7 +232,7 @@ static exit_code_t add_block_cb(const ch
 
 	/* Add additional nodes. */
 	cb_data->prefix = filename;
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_part_cb, cb_data);
 
 	return EXIT_OK;
@@ -249,7 +251,7 @@ int devnode_add_block_from_sysfs(struct
 	cb_data.prefix = NULL;
 
 	blkpath = misc_asprintf("%s/block", path);
-	if (dir_exists(blkpath))
+	if (util_path_is_dir(blkpath))
 		path_for_each(blkpath, add_block_cb, &cb_data);
 	free(blkpath);
 
@@ -283,7 +285,7 @@ int devnode_add_net_from_sysfs(struct ut
 	cb_data.prefix = NULL;
 
 	netpath = misc_asprintf("%s/net", path);
-	if (dir_exists(netpath))
+	if (util_path_is_dir(netpath))
 		path_for_each(netpath, add_net_cb, &cb_data);
 	free(netpath);
 
--- a/zdev/src/generic_ccw.c
+++ b/zdev/src/generic_ccw.c
@@ -9,6 +9,8 @@
 
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "ccw.h"
 #include "ccwgroup.h"
@@ -162,7 +164,7 @@ static void generic_ccw_st_add_devnodes(
 	cb_data.devnodes = devnodes;
 	cb_data.id = id;
 	path = path_get_sys_dev_char_devices();
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, &cb_data);
 	free(path);
 }
--- a/zdev/src/lcs_auto.c
+++ b/zdev/src/lcs_auto.c
@@ -9,6 +9,8 @@
 
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "ccw.h"
 #include "ccwgroup.h"
 #include "ctc.h"
@@ -129,13 +131,13 @@ static struct util_list *read_sorted_lcs
 	/* Add CCW devices bound to the LCS CCW device driver. */
 	module_try_load_once(LCS_MOD_NAME, NULL);
 	path = path_get_sys_bus_drv(CCW_BUS_NAME, LCS_CCWDRV_NAME);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, infos);
 	free(path);
 
 	/* Add CCW devices bound to the CTC CCW device driver. */
 	path = path_get_sys_bus_drv(CCW_BUS_NAME, CTC_CCWDRV_NAME);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, infos);
 	free(path);
 
--- a/zdev/src/misc.c
+++ b/zdev/src/misc.c
@@ -889,69 +889,6 @@ void ptrlist_move(struct util_list *to,
 	util_list_add_tail(to, node);
 }
 
-/* Check if a path exists. */
-bool path_exists(const char *path)
-{
-	struct stat s;
-
-	debug("Checking if file exists: %s\n", path);
-	if (stat(path, &s) != 0)
-		return false;
-
-	return true;
-}
-
-/* Check if a file exists. */
-bool file_exists(const char *path)
-{
-	struct stat s;
-
-	debug("Checking if regular file exists: %s\n", path);
-	if (stat(path, &s) != 0)
-		return false;
-
-	if (!S_ISREG(s.st_mode))
-		return false;
-
-	return true;
-}
-
-/* Check if a file is writable. */
-bool file_writable(const char *path)
-{
-	struct stat s;
-
-	debug("Checking if regular file is writable: %s\n", path);
-	if (stat(path, &s) != 0)
-		return false;
-
-	if (!S_ISREG(s.st_mode))
-		return false;
-
-	if (!(s.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
-		return false;
-
-	return true;
-}
-
-/* Check if a directory exists. */
-bool dir_exists(const char *path)
-{
-	bool result = false;
-	struct stat s;
-
-	debug("Checking if directory exists: %s\n", path);
-	if (stat(path, &s) != 0)
-		goto out;
-	if (!S_ISDIR(s.st_mode))
-		goto out;
-	result = true;
-out:
-	debug("Result: %d\n", result);
-
-	return result;
-}
-
 /* Check if file is a block or character special file. */
 bool file_is_devnode(const char *path)
 {
--- a/zdev/src/modprobe.c
+++ b/zdev/src/modprobe.c
@@ -14,6 +14,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "misc.h"
 #include "modprobe.h"
@@ -376,7 +378,7 @@ exit_code_t modprobe_read_settings(const
 	struct modprobe_file *mf;
 	exit_code_t rc;
 
-	if (!file_exists(path)) {
+	if (!util_path_is_reg_file(path)) {
 		*settings = NULL;
 		return EXIT_OK;
 	}
@@ -398,7 +400,7 @@ exit_code_t modprobe_write_settings(cons
 	exit_code_t rc;
 	unsigned long lines;
 
-	if (file_exists(path)) {
+	if (util_path_is_reg_file(path)) {
 		rc = modprobe_read(path, &mf);
 		if (rc)
 			return rc;
@@ -414,7 +416,7 @@ exit_code_t modprobe_write_settings(cons
 	lines = util_list_len(&mf->lines);
 	if (lines == 0 || (lines == 1 && find_chzdev_comment(mf))) {
 		/* Do not write empty files. */
-		if (file_exists(path))
+		if (util_path_is_reg_file(path))
 			rc = remove_file(path);
 	} else
 		rc = modprobe_write(mf);
--- a/zdev/src/module.c
+++ b/zdev/src/module.c
@@ -12,6 +12,8 @@
 #include <string.h>
 #include <sys/types.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "misc.h"
 #include "module.h"
@@ -34,7 +36,7 @@ bool module_loaded(const char *mod)
 	char *path = path_get_sys_module(mod);
 	bool rc;
 
-	rc = dir_exists(path);
+	rc = util_path_is_dir(path);
 	free(path);
 
 	return rc;
@@ -229,7 +231,7 @@ void module_try_load_once(const char *mo
 	} else
 		tried_loading = strlist_new();
 	strlist_add(tried_loading, mod);
-	if (path && path_exists(path))
+	if (path && util_path_exists(path))
 		return;
 	if (module_loaded(mod))
 		return;
@@ -275,7 +277,7 @@ bool module_set_params(const char *mod,
 			return false;
 		}
 		path = path_get_sys_module_param(mod, s->name);
-		result = file_writable(path);
+		result = util_path_is_writable(path);
 		free(path);
 		if (!result) {
 			/* Sysfs file is not writable. */
--- a/zdev/src/qeth_auto.c
+++ b/zdev/src/qeth_auto.c
@@ -11,6 +11,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "ccw.h"
 #include "ccwgroup.h"
 #include "device.h"
@@ -277,7 +279,7 @@ static struct util_list *read_sorted_qet
 	/* Get CHPID information for all devices bound to the QETH driver. */
 	infos = ptrlist_new();
 	path = path_get_sys_bus_drv(CCW_BUS_NAME, QETH_CCWDRV_NAME);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_cb, infos);
 	free(path);
 
--- a/zdev/src/root.c
+++ b/zdev/src/root.c
@@ -9,6 +9,8 @@
 
 #include <stdlib.h>
 
+#include "lib/util_path.h"
+
 #include "device.h"
 #include "devtype.h"
 #include "misc.h"
@@ -74,7 +76,7 @@ exit_code_t root_check(void)
 	     "required.\n");
 
 	/* Check if script is available. */
-	if (!file_exists(PATH_ROOT_SCRIPT))
+	if (!util_path_is_reg_file(PATH_ROOT_SCRIPT))
 		goto out;
 
 	/* Ask for confirmation. */
--- a/zdev/src/scsi.c
+++ b/zdev/src/scsi.c
@@ -12,6 +12,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "misc.h"
 #include "path.h"
 #include "scsi.h"
@@ -253,7 +255,7 @@ static struct util_list *read_scsi_zfcp_
 
 	list = ptrlist_new();
 	path = path_get_sys_bus_dev("scsi", NULL);
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, add_ids_cb, list);
 	free(path);
 
--- a/zdev/src/select.c
+++ b/zdev/src/select.c
@@ -10,6 +10,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "blkinfo.h"
 #include "ccw.h"
 #include "device.h"
@@ -622,7 +624,7 @@ exit_code_t select_by_path(struct select
 	struct ptrlist_node *p;
 	exit_code_t rc;
 
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		err_t_print(err, "Path not found: %s\n", path);
 		return EXIT_DEVICE_NOT_FOUND;
 	}
--- a/zdev/src/udev.c
+++ b/zdev/src/udev.c
@@ -13,6 +13,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "ccw.h"
 #include "device.h"
@@ -391,7 +393,7 @@ exit_code_t udev_remove_rule(const char
 	exit_code_t rc = EXIT_OK;
 
 	path = path_get_udev_rule(type, id);
-	if (file_exists(path))
+	if (util_path_is_reg_file(path))
 		rc = remove_file(path);
 	free(path);
 
--- a/zdev/src/udev_ccw.c
+++ b/zdev/src/udev_ccw.c
@@ -13,6 +13,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "ccw.h"
 #include "device.h"
@@ -33,7 +35,7 @@ bool udev_ccw_exists(const char *type, c
 		return false;
 
 	path = path_get_udev_rule(type, normid);
-	rc = file_exists(path);
+	rc = util_path_is_reg_file(path);
 	free(path);
 	free(normid);
 
@@ -150,7 +152,7 @@ exit_code_t udev_ccw_write_device(struct
 
 	path = path_get_udev_rule(type, id);
 	debug("Writing %s udev rule file %s\n", type, path);
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		rc = path_create(path);
 		if (rc)
 			goto out;
@@ -243,7 +245,7 @@ exit_code_t udev_ccw_write_cio_ignore(co
 
 	if (!*id_list) {
 		/* Empty id_list string - remove file. */
-		if (!file_exists(path)) {
+		if (!util_path_is_reg_file(path)) {
 			/* Already removed. */
 			goto out;
 		}
@@ -256,7 +258,7 @@ exit_code_t udev_ccw_write_cio_ignore(co
 		goto out;
 
 	debug("Writing cio-ignore udev rule file %s\n", path);
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		rc = path_create(path);
 		if (rc)
 			goto out;
--- a/zdev/src/udev_ccwgroup.c
+++ b/zdev/src/udev_ccwgroup.c
@@ -13,6 +13,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "ccwgroup.h"
 #include "device.h"
@@ -53,7 +55,7 @@ bool udev_ccwgroup_exists(const char *ty
 	path = get_rule_path(type, id);
 	if (!path)
 		return false;
-	rc = file_exists(path);
+	rc = util_path_is_reg_file(path);
 	free(path);
 
 	return rc;
@@ -215,7 +217,7 @@ exit_code_t udev_ccwgroup_write_device(s
 	list = setting_list_get_sorted(dev->persistent.settings);
 
 	debug("Writing %s udev rule file %s\n", type, path);
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		rc = path_create(path);
 		if (rc)
 			goto out;
@@ -364,7 +366,7 @@ void udev_ccwgroup_add_device_ids(const
 	cb_data.prefix = misc_asprintf("%s-%s-", UDEV_PREFIX, type);
 	cb_data.ids = list;
 
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, get_ids_cb, &cb_data);
 
 	free(cb_data.prefix);
@@ -382,7 +384,7 @@ exit_code_t udev_ccwgroup_remove_rule(co
 		return EXIT_INVALID_ID;
 
 	path = path_get_udev_rule(type, partial_id);
-	if (file_exists(path))
+	if (util_path_is_reg_file(path))
 		rc = remove_file(path);
 	free(path);
 	free(partial_id);
--- a/zdev/src/udev_zfcp_lun.c
+++ b/zdev/src/udev_zfcp_lun.c
@@ -14,6 +14,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "device.h"
 #include "misc.h"
@@ -376,7 +378,7 @@ void udev_zfcp_lun_add_device_ids(struct
 	cb_data.list = list;
 	path = path_get_udev_rules();
 
-	if (dir_exists(path))
+	if (util_path_is_dir(path))
 		path_for_each(path, lun_cb, &cb_data);
 
 	free(path);
@@ -497,7 +499,7 @@ static exit_code_t write_luns_rule(const
 		return EXIT_INTERNAL_ERROR;
 	hba_id = ccw_devid_to_str(&node->id.fcp_dev);
 	debug("Writing FCP LUN udev rule file %s\n", path);
-	if (!path_exists(path)) {
+	if (!util_path_exists(path)) {
 		rc = path_create(path);
 		if (rc)
 			goto out;
@@ -614,7 +616,7 @@ static exit_code_t update_lun_rule(const
 
 	/* Get previous rule data. */
 	luns = zfcp_lun_node_list_new();
-	exists = file_exists(path);
+	exists = util_path_is_reg_file(path);
 	if (exists)
 		udev_read_zfcp_lun_rule(path, luns);
 
--- a/zdev/src/zfcp_lun.c
+++ b/zdev/src/zfcp_lun.c
@@ -13,6 +13,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "lib/util_path.h"
+
 #include "attrib.h"
 #include "ccw.h"
 #include "device.h"
@@ -430,7 +432,7 @@ static exit_code_t zfcp_lun_st_read_acti
 
 	/* Check for FC unit. */
 	fc_path = path_get_zfcp_lun_dev(dev->devid);
-	fc_exists = path_exists(fc_path);
+	fc_exists = util_path_exists(fc_path);
 	free(fc_path);
 
 	/* Check for SCSI device. */
@@ -478,7 +480,7 @@ static exit_code_t zfcp_lun_add(struct d
 	/* Check if LUN already exists. */
 	fcp_dev_id = ccw_devid_to_str(&devid->fcp_dev);
 	lunpath = path_get_zfcp_lun_dev(devid);
-	if (dir_exists(lunpath)) {
+	if (util_path_is_dir(lunpath)) {
 		hctl = scsi_hctl_from_zfcp_lun_devid(devid);
 		if (!hctl)
 			goto check_failed;
@@ -486,7 +488,7 @@ static exit_code_t zfcp_lun_add(struct d
 	}
 
 	portpath = path_get_zfcp_port_dev(devid);
-	if (!dir_exists(portpath)) {
+	if (!util_path_is_dir(portpath)) {
 		delayed_err("Target port not found\n");
 		rc = EXIT_ZFCP_WWPN_NOT_FOUND;
 		goto out;
@@ -681,14 +683,14 @@ static exit_code_t zfcp_lun_st_device_un
 
 remove_lun:
 	path = path_get_zfcp_lun_dev(devid);
-	if (!path_exists(path))
+	if (!util_path_exists(path))
 		goto out;
 	free(path);
 	path = NULL;
 
 	/* Remove FCP LUN. */
 	devpath = path_get_zfcp_port_dev(devid);
-	if (!dir_exists(devpath)) {
+	if (!util_path_is_dir(devpath)) {
 		rc = EXIT_ZFCP_WWPN_NOT_FOUND;
 		goto out;
 	}
@@ -779,7 +781,7 @@ static bool zfcp_lun_fc_lun_exists(const
 	if (zfcp_lun_parse_devid(&devid, id, err_ignore) != EXIT_OK)
 		return false;
 	path = path_get_zfcp_lun_dev(&devid);
-	result = path_exists(path);
+	result = util_path_exists(path);
 	free(path);
 
 	return result;
@@ -910,7 +912,7 @@ static void add_sg_from_sysfs(struct uti
 	char *sgpath;
 
 	sgpath = misc_asprintf("%s/scsi_generic", path);
-	if (dir_exists(sgpath))
+	if (util_path_is_dir(sgpath))
 		path_for_each(sgpath, add_sg_cb, list);
 	free(sgpath);
 }