Add test for getprogname() and symbolic links; bug 654

lib/util/regress/progname/progname_test.c

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2014 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * 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 <sys/types.h>
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#ifdef HAVE_STRING_H
+# if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include "compat/stdbool.h"
+#endif
+
+#include "sudo_compat.h"
+#include "sudo_util.h"
+
+__dso_public int main(int argc, char *argv[]);
+
+/*
+ * Test that getprogname() returns the expected result.
+ * On some systems (AIX), we may have issues with symbolic links.
+ */
+
+int
+main(int argc, char *argv[])
+{
+    char *progbase = "progname_test";
+
+    if (argc > 0) {
+	if ((progbase = strrchr(argv[0], '/')) != NULL)
+	    progbase++;
+	else
+	    progbase = argv[0];
+    }
+    initprogname(progbase);
+
+    /* Make sure getprogname() matches basename of argv[0]. */
+    if (strcmp(getprogname(), progbase) != 0) {
+	printf("%s: FAIL: incorrect program name \"%s\"\n",
+	    progbase, getprogname());
+	exit(1);
+    }
+
+    exit(0);
+}