Test rk_get*auxval()

lib/roken/Makefile.am

@@ -20,7 +20,7 @@ if HAVE_DBHEADER
 AM_CPPFLAGS += -I$(DBHEADER)
 endif
 
-noinst_PROGRAMS = snprintf-test resolve-test rkpty test-detach
+noinst_PROGRAMS = snprintf-test resolve-test rkpty test-detach test-auxval
 
 CHECK_LOCAL = snprintf-test resolve-test rkpty make-roken
 
@@ -30,6 +30,7 @@ check_PROGRAMS = 				\
 		getifaddrs-test			\
 		getxxyyy-test			\
 		hex-test			\
+		test-auxval			\
 		test-readenv			\
 		resolve-test			\
 		parse_bytes-test		\
@@ -52,6 +53,7 @@ parse_reply_test_SOURCES = parse_reply-test.c resolve.c
 parse_reply_test_CFLAGS  = -DTEST_RESOLVE
 
 test_readenv_SOURCES = test-readenv.c test-mem.c
+test_auxval_SOURCES = test-auxval.c
 
 test_detach_SOURCES = test-detach.c
 
@@ -261,6 +263,7 @@ EXTRA_DIST = \
 	stdint.hin \
 	syslogc.c \
 	syslog.hin \
+	test-auxval.c \
 	test-mem.h \
 	test-mini_inetd.c \
 	win32_alloc.c \

lib/roken/test-auxval.c

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 1999 - 2004 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "roken.h"
+
+int
+main()
+{
+    unsigned long max_t = 0;
+    unsigned long a[2];
+    unsigned long v;
+    ssize_t bytes;
+    int fd;
+
+    if ((fd = open("/proc/self/auxv", O_RDONLY)) == -1)
+        return 0;
+
+    do {
+        bytes = read(fd, a, sizeof(a));
+        if (bytes != sizeof(a)) {
+            if (bytes == -1)
+                err(1, "Error reading from /proc/self/auxv");
+            if (bytes == 0)
+                warnx("Did not see terminator in /proc/self/auxv");
+            else
+                warnx("Partial entry in /proc/self/auxv or test interrupted");
+            (void) close(fd);
+            return 1;
+        }
+        if (a[0] > max_t)
+            max_t = a[0];
+        if (a[0] == 0) {
+            if (a[1] != 0)
+                warnx("AT_NULL with non-zero value %lu?!", a[1]);
+            continue;
+        }
+
+        errno = EACCES;
+
+        if ((v = rk_getauxval(a[0])) != a[1])
+            errx(1, "rk_getauxval(%lu) should have been %lu, was %lu",
+                 a[0], a[1], v);
+        if (errno != EACCES)
+            errx(1, "rk_getauxval(%lu) did not preserve errno", a[0]);
+
+        if ((v = rk_getprocauxval(a[0])) != a[1])
+            errx(1, "rk_getauxval(%lu) should have been %lu, was %lu",
+                 a[0], a[1], v);
+        if (errno != EACCES)
+            errx(1, "rk_getprocauxval(%lu) did not preserve errno", a[0]);
+
+        printf("auxv type %lu -> %lu\n", a[0], a[1]);
+    } while (a[0] != 0 || a[1] != 0);
+
+    (void) close(fd);
+    if (max_t == 0) {
+        warnx("No entries in /proc/self/auxv or it is not available on this "
+              "system or this program is linked statically; cannot test "
+              "rk_getauxval()");
+        return 0;
+    }
+
+    errno = EACCES;
+    if ((v = rk_getauxval(max_t + 1)) != 0)
+        errx(1, "rk_getauxval((max_type_seen = %lu) + 1) should have been "
+             "0, was %lu", max_t, v);
+    if (errno != ENOENT)
+        errx(1, "rk_getauxval((max_type_seen = %lu) + 1) did not set "
+             "errno = ENOENT!", max_t);
+
+    errno = EACCES;
+    if ((v = rk_getprocauxval(max_t + 1)) != 0)
+        errx(1, "rk_getprocauxval((max_type_seen = %lu) + 1) should have been "
+             "0, was %lu", max_t, v);
+    if (errno != ENOENT)
+        errx(1, "rk_getprocauxval((max_type_seen = %lu) + 1) did not set "
+             "errno = ENOENT!", max_t);
+    return 0;
+}