From: Dmitry V. Levin <ldv@altlinux.org>
Date: Wed, 19 Apr 2017 02:16:31 +0000 (+0000)
Subject: tests: add skip_if_unavailable function to libtests
X-Git-Tag: v4.17~66
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9f93fd094f645941097fa0618ca4c2a723c13f2d;p=strace

tests: add skip_if_unavailable function to libtests

* tests/skip_unavailable.c: New file.
* tests/tests.h (skip_if_unavailable): New prototype.
* tests/Makefile.am (libtests_a_SOURCES): Add skip_unavailable.c.
---

diff --git a/tests/Makefile.am b/tests/Makefile.am
index c935cc70..0ed8694c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -58,6 +58,7 @@ libtests_a_SOURCES = \
 	printflags.c \
 	printxval.c \
 	signal2name.c \
+	skip_unavailable.c \
 	sprintrc.c \
 	tail_alloc.c \
 	tests.h \
diff --git a/tests/skip_unavailable.c b/tests/skip_unavailable.c
new file mode 100644
index 00000000..074fc3a2
--- /dev/null
+++ b/tests/skip_unavailable.c
@@ -0,0 +1,13 @@
+#include "tests.h"
+
+#include <sys/stat.h>
+#include <unistd.h>
+
+void
+skip_if_unavailable(const char *const path)
+{
+	struct stat st;
+
+	if (stat(path, &st))
+		perror_msg_and_skip("stat: %s", path);
+}
diff --git a/tests/tests.h b/tests/tests.h
index d077c5c8..d7bbff45 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -60,6 +60,9 @@ void error_msg_and_skip(const char *, ...)
 void perror_msg_and_skip(const char *, ...)
 	ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
 
+/* Stat the specified file and skip the test if the stat call failed. */
+void skip_if_unavailable(const char *);
+
 /*
  * Allocate memory that ends on the page boundary.
  * Pages allocated by this call are preceeded by an unmapped page