Unit test for exptilde

plugins/sudoers/regress/exptilde/check_exptilde.c

@@ -0,0 +1,101 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2020 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 <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define SUDO_ERROR_WRAP 0
+
+#include "sudoers.h"
+
+#include <def_data.c>
+
+struct sudo_user sudo_user;
+
+struct test_data {
+    char *input;
+    char *output;
+    char *user;
+    bool result;
+} test_data[] = {
+    { "foo/bar", NULL, NULL, false },
+    { "~root", "/", NULL, true },
+    { "~", "/home/millert", "millert", true },
+    { "~millert", "/home/millert", "millert", true },
+    { NULL }
+};
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+int
+main(int argc, char *argv[])
+{
+    int ntests = 0, errors = 0;
+    struct test_data *td;
+    struct passwd *pw;
+    char *path = NULL;
+    bool result;
+
+    initprogname(argc > 0 ? argv[0] : "check_exptilde");
+
+    /* Prime the passwd cache */
+    pw = sudo_mkpwent("root", 0, 0, "/", "/bin/sh");
+    if (pw == NULL)
+	sudo_fatalx("unable to create passwd entry for root");
+    sudo_pw_delref(pw);
+
+    pw = sudo_mkpwent("millert", 8036, 20, "/home/millert", "/bin/tcsh");
+    if (pw == NULL)
+	sudo_fatalx("unable to create passwd entry for millert");
+    sudo_pw_delref(pw);
+
+    for (td = test_data; td->input != NULL; td++) {
+	ntests++;
+	free(path);
+	if ((path = strdup(td->input)) == NULL)
+	    sudo_fatal(NULL);
+	result = expand_tilde(&path, td->user);
+	if (result != td->result) {
+	    errors++;
+	    if (result) {
+		sudo_warnx("unexpected success: input %s, output %s", 
+		    td->input, path);
+	    } else {
+		sudo_warnx("unexpected failure: input %s", td->input);
+	    }
+	    continue;
+	}
+	if (td->result && strcmp(path, td->output) != 0) {
+	    errors++;
+	    sudo_warnx("incorrect output for input %s: expected %s, got %s",
+		td->input, td->output, path);
+	    continue;
+	}
+    }
+
+    printf("%s: %d tests run, %d errors, %d%% success rate\n", getprogname(),
+	ntests, errors, (ntests - errors) * 100 / ntests);
+
+    exit(errors);
+}