Apply multiarch rules when loading plugins too.

lib/util/regress/multiarch/multiarch_test.c

@@ -0,0 +1,178 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2022 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define SUDO_ERROR_WRAP 0
+
+#include "sudo_compat.h"
+#include "sudo_fatal.h"
+#include "sudo_util.h"
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+#ifdef __linux__
+# include <sys/utsname.h>
+
+# if defined(__ILP32__)
+#  define ARCH_LIB	"libx32"
+# elif defined(__LP64__)
+#  define ARCH_LIB	"lib64"
+# else
+#  define ARCH_LIB	"lib32"
+# endif
+
+struct multiarch_test {
+    const char *inpath;
+    char *outpath;
+};
+
+static struct multiarch_test *
+make_test_data(void)
+{
+    struct multiarch_test *test_data;
+    struct utsname unamebuf;
+    int i;
+
+    if (uname(&unamebuf) == -1)
+        return NULL;
+
+    test_data = calloc(7, sizeof(*test_data));
+    if (test_data == NULL)
+	return NULL;
+
+    test_data[0].inpath = "/usr/" ARCH_LIB "/libfoo.so";
+    i = asprintf(&test_data[0].outpath, "/usr/lib/%s-linux-gnu/libfoo.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[0].outpath = NULL;
+	goto bad;
+    }
+
+    test_data[1].inpath = "/usr/lib/something.so";
+    i = asprintf(&test_data[1].outpath, "/usr/lib/%s-linux-gnu/something.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[1].outpath = NULL;
+	goto bad;
+    }
+
+    test_data[2].inpath = "/usr/libexec/libbar.so";
+    i = asprintf(&test_data[2].outpath, "/usr/libexec/%s-linux-gnu/libbar.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[2].outpath = NULL;
+	goto bad;
+    }
+
+    test_data[3].inpath = "/usr/local/lib/sudo/libsudo_util.so";
+    i = asprintf(&test_data[3].outpath, "/usr/local/lib/%s-linux-gnu/sudo/libsudo_util.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[3].outpath = NULL;
+	goto bad;
+    }
+
+    test_data[4].inpath = "/opt/sudo/lib/sudoers.so";
+    i = asprintf(&test_data[4].outpath, "/opt/sudo/lib/%s-linux-gnu/sudoers.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[4].outpath = NULL;
+	goto bad;
+    }
+
+    i = asprintf(&test_data[5].outpath, "/usr/lib/%s-linux-gnu/something.so",
+	unamebuf.machine);
+    if (i == -1) {
+	test_data[5].outpath = NULL;
+	goto bad;
+    }
+    test_data[5].inpath = test_data[5].outpath;
+    test_data[5].outpath = NULL;
+
+    return test_data;
+bad:
+    for (i = 0; test_data[i].outpath != NULL; i++)
+	free(test_data[i].outpath);
+    free(test_data);
+    return NULL;
+}
+#endif /* __linux__ */
+
+int
+main(int argc, char *argv[])
+{
+    int ch, errors = 0;
+#ifdef __linux__
+    int ntests = 0;
+    struct multiarch_test *test_data;
+#endif
+
+    initprogname(argc > 0 ? argv[0] : "multiarch_test");
+
+    while ((ch = getopt(argc, argv, "v")) != -1) {
+	switch (ch) {
+	case 'v':
+	    /* ignore */
+	    break;
+	default:
+	    fprintf(stderr, "usage: %s [-v]\n", getprogname());
+	    return EXIT_FAILURE;
+	}
+    }
+    argc -= optind;
+    argv += optind;
+
+#ifdef __linux__
+    test_data = make_test_data();
+    if (test_data == NULL) {
+	sudo_warnx("%s", "failed to generate test data");
+	return EXIT_FAILURE;
+    }
+
+    for (ch = 0; test_data[ch].inpath != NULL; ch++) {
+	char *outpath = sudo_stat_multiarch(test_data[ch].inpath, NULL);
+	ntests++;
+	if (outpath == NULL) {
+	    if (test_data[ch].outpath != NULL) {
+		sudo_warnx("%s: sudo_stat_multiarch failed",
+		    test_data[ch].inpath);
+		errors++;
+	    }
+	} else if (strcmp(outpath, test_data[ch].outpath) != 0) {
+	    sudo_warnx("%s: expected %s got %s", test_data[ch].inpath,
+		test_data[ch].outpath, outpath);
+	    errors++;
+	    free(outpath);
+	}
+    }
+
+    if (ntests != 0) {
+	printf("%s: %d tests run, %d errors, %d%% success rate\n",
+	    getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
+    }
+#endif /* __linux__ */
+    return errors;
+}