s390-tools/s390-tools-sles15sp1-01-util_path-add-function-to-check-if-a-path-exists.patch

Subject: util_path: add function to check if a path exists
From: Jan Hoeppner <jan.hoeppner@de.ibm.com>

Summary:     zpcictl: Add tool to manage PCI devices
Description: Use the zpcictl tool to manage PCI devices on the IBM Z
             platform.  Initial functions include generating firmware
             error logs, resetting PCI devices, and preparing a device
             for further repair actions.
Upstream-ID: df133846b5889a7698ac09f00284c1be54926b59
Problem-ID:  RAS1703

Upstream-Description:

             util_path: add function to check if a path exists

             GitHub-ID: #20

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


Signed-off-by: Jan Hoeppner <jan.hoeppner@de.ibm.com>
---
 include/lib/util_path.h |    1 +
 libutil/util_path.c     |   12 ++++++++++++
 2 files changed, 13 insertions(+)

--- a/include/lib/util_path.h
+++ b/include/lib/util_path.h
@@ -20,5 +20,6 @@ bool util_path_is_readable(const char *f
 bool util_path_is_writable(const char *fmt, ...);
 bool util_path_is_dir(const char *fmt, ...);
 bool util_path_is_reg_file(const char *fmt, ...);
+bool util_path_exists(const char *fmt, ...);
 
 #endif /** LIB_UTIL_PATH_H @} */
--- a/libutil/util_path.c
+++ b/libutil/util_path.c
@@ -194,3 +194,15 @@ free_str:
 	free(path);
 	return rc;
 }
+
+bool util_path_exists(const char *fmt, ...)
+{
+	va_list ap;
+	char *path;
+	bool rc;
+
+	UTIL_VASPRINTF(&path, fmt, ap);
+	rc = access(path, F_OK) == 0;
+	free(path);
+	return rc;
+}