Add INFTIM and arc4andom feature test.

Makefile

@@ -9,16 +9,18 @@ COMPATS	= compat_err.c \
 	  compat_strlcat.c \
 	  compat_strlcpy.c \
 	  compat_strtonum.c
-TESTS	= test-PATH_MAX.c \
-	  test-__progname.c \
+TESTS	= test-__progname.c \
+	  test-arc4random.c \
 	  test-capsicum.c \
 	  test-err.c \
 	  test-explicit_bzero.c \
 	  test-getprogname.c \
+	  test-INFTIM.c \
 	  test-md5.c \
 	  test-memmem.c \
 	  test-memrchr.c \
 	  test-memset_s.c \
+	  test-PATH_MAX.c \
 	  test-pledge.c \
 	  test-program_invocation_short_name.c \
 	  test-reallocarray.c \

configure

@@ -122,10 +122,12 @@ done
 # You WANT to change this.
 #----------------------------------------------------------------------
 
+HAVE_ARC4RANDOM=
 HAVE_CAPSICUM=
 HAVE_ERR=
 HAVE_EXPLICIT_BZERO=
 HAVE_GETPROGNAME=
+HAVE_INFTIM=
 HAVE_MD5=
 HAVE_MEMMEM=
 HAVE_MEMRCHR=
@@ -238,10 +240,12 @@ runtest() {
 # You WANT to change this.
 #----------------------------------------------------------------------
 
+runtest arc4random	ARC4RANDOM			  || true
 runtest capsicum	CAPSICUM			  || true
 runtest err		ERR				  || true
 runtest explicit_bzero	EXPLICIT_BZERO			  || true
 runtest getprogname	GETPROGNAME			  || true
+runtest INFTIM		INFTIM				  || true
 runtest md5		MD5				  || true
 runtest memmem		MEMMEM			  	  || true
 runtest memrchr		MEMRCHR			  	  || true
@@ -300,10 +304,12 @@ __HEREDOC__
 	&& echo "#define PATH_MAX 4096"
 
 cat << __HEREDOC__
+#define HAVE_ARC4RANDOM ${HAVE_ARC4RANDOM}
 #define HAVE_CAPSICUM ${HAVE_CAPSICUM}
 #define HAVE_ERR ${HAVE_ERR}
 #define HAVE_EXPLICIT_BZERO ${HAVE_EXPLICIT_BZERO}
 #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
+#define HAVE_INFTIM ${HAVE_INFTIM}
 #define HAVE_MD5 ${HAVE_MD5}
 #define HAVE_MEMMEM ${HAVE_MEMMEM}
 #define HAVE_MEMRCHR ${HAVE_MEMRCHR}

test-INFTIM.c

@@ -0,0 +1,13 @@
+/*
+ * Linux doesn't (always?) have this.
+ */
+
+#include <poll.h>
+#include <stdio.h>
+
+int
+main(void)
+{
+	printf("INFTIM is defined to be %ld\n", (long)INFTIM);
+	return 0;
+}

test-arc4random.c

@@ -0,0 +1,7 @@
+#include <stdlib.h>
+
+int
+main(void)
+{
+	return (arc4random() + 1) ? 0 : 1;
+}

tests.c

@@ -1,35 +1,3 @@
-#if TEST_PATH_MAX
-/*
- * POSIX allows PATH_MAX to not be defined, see
- * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html;
- * the GNU Hurd is an example of a system not having it.
- *
- * Arguably, it would be better to test sysconf(_SC_PATH_MAX),
- * but since the individual *.c files include "config.h" before
- * <limits.h>, overriding an excessive value of PATH_MAX from
- * "config.h" is impossible anyway, so for now, the simplest
- * fix is to provide a value only on systems not having any.
- * So far, we encountered no system defining PATH_MAX to an
- * impractically large value, even though POSIX explicitly
- * allows that.
- *
- * The real fix would be to replace all static buffers of size
- * PATH_MAX by dynamically allocated buffers.  But that is
- * somewhat intrusive because it touches several files and
- * because it requires changing struct mlink in mandocdb.c.
- * So i'm postponing that for now.
- */
-
-#include <limits.h>
-#include <stdio.h>
-
-int
-main(void)
-{
-	printf("PATH_MAX is defined to be %ld\n", (long)PATH_MAX);
-	return 0;
-}
-#endif /* TEST_PATH_MAX */
 #if TEST___PROGNAME
 int
 main(void)
@@ -39,6 +7,15 @@ main(void)
 	return !__progname;
 }
 #endif /* TEST___PROGNAME */
+#if TEST_ARC4RANDOM
+#include <stdlib.h>
+
+int
+main(void)
+{
+	return (arc4random() + 1) ? 0 : 1;
+}
+#endif /* TEST_ARC4RANDOM */
 #if TEST_CAPSICUM
 #include <sys/capability.h>
 
@@ -102,6 +79,21 @@ main(void)
 	return progname == NULL;
 }
 #endif /* TEST_GETPROGNAME */
+#if TEST_INFTIM
+/*
+ * Linux doesn't (always?) have this.
+ */
+
+#include <poll.h>
+#include <stdio.h>
+
+int
+main(void)
+{
+	printf("INFTIM is defined to be %ld\n", (long)INFTIM);
+	return 0;
+}
+#endif /* TEST_INFTIM */
 #if TEST_MD5
 #include <sys/types.h>
 #include <md5.h>
@@ -153,6 +145,38 @@ int main(void)
 	return 0;
 }
 #endif /* TEST_MEMSET_S */
+#if TEST_PATH_MAX
+/*
+ * POSIX allows PATH_MAX to not be defined, see
+ * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html;
+ * the GNU Hurd is an example of a system not having it.
+ *
+ * Arguably, it would be better to test sysconf(_SC_PATH_MAX),
+ * but since the individual *.c files include "config.h" before
+ * <limits.h>, overriding an excessive value of PATH_MAX from
+ * "config.h" is impossible anyway, so for now, the simplest
+ * fix is to provide a value only on systems not having any.
+ * So far, we encountered no system defining PATH_MAX to an
+ * impractically large value, even though POSIX explicitly
+ * allows that.
+ *
+ * The real fix would be to replace all static buffers of size
+ * PATH_MAX by dynamically allocated buffers.  But that is
+ * somewhat intrusive because it touches several files and
+ * because it requires changing struct mlink in mandocdb.c.
+ * So i'm postponing that for now.
+ */
+
+#include <limits.h>
+#include <stdio.h>
+
+int
+main(void)
+{
+	printf("PATH_MAX is defined to be %ld\n", (long)PATH_MAX);
+	return 0;
+}
+#endif /* TEST_PATH_MAX */
 #if TEST_PLEDGE
 #include <unistd.h>