libreplace: some systems don't have memmem()

added rep_memmem() and a testsuite

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/replace/test/testsuite.c b/lib/replace/test/testsuite.c
index 7929f11add..caa70d68e3 100644
--- a/lib/replace/test/testsuite.c
+++ b/lib/replace/test/testsuite.c
@@ -1015,6 +1015,42 @@ static int test_utimes(void)
 	return true;
 }
 
+static int test_memmem(void)
+{
+	char *s;
+
+	printf("test: memmem\n");
+
+	s = memmem("foo", 3, "fo", 2);
+	if (strcmp(s, "foo") != 0) {
+		printf(__location__ ": Failed memmem\n");
+		return false;
+	}
+
+	s = memmem("foo", 3, "", 0);
+	if (strcmp(s, "foo") != 0) {
+		printf(__location__ ": Failed memmem\n");
+		return false;
+	}
+
+	s = memmem("foo", 4, "o", 1);
+	if (strcmp(s, "oo") != 0) {
+		printf(__location__ ": Failed memmem\n");
+		return false;
+	}
+
+	s = memmem("foobarfodx", 11, "fod", 3);
+	if (strcmp(s, "fodx") != 0) {
+		printf(__location__ ": Failed memmem\n");
+		return false;
+	}
+
+	printf("success: memmem\n");
+
+	return true;
+}
+
+
 struct torture_context;
 bool torture_local_replace(struct torture_context *ctx)
 {
@@ -1065,6 +1101,7 @@ bool torture_local_replace(struct torture_context *ctx)
 	ret &= test_getifaddrs();
 	ret &= test_utime();
 	ret &= test_utimes();
+	ret &= test_memmem();
 
 	return ret;
 }