]> wimlib.net Git - wimlib/blobdiff - tests/wlfuzz.c
mount_image.c: add fallback definitions of RENAME_* constants
[wimlib] / tests / wlfuzz.c
index eccedbaa02ac47116431b99db342813e59f81673..e3fe909dd7d7059720a28a570bf50ce64e9dd4ec 100644 (file)
@@ -3,7 +3,7 @@
  */
 
 /*
- * Copyright (C) 2015-2021 Eric Biggers
+ * Copyright 2015-2023 Eric Biggers
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -61,6 +61,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/stat.h>
 #ifdef WITH_NTFS_3G
 #  include <sys/wait.h>
 #endif
@@ -70,6 +71,9 @@
 #  include <windows.h>
 #  include <winternl.h>
 #  include <ntstatus.h>
+#else
+#  include <linux/magic.h>
+#  include <sys/vfs.h>
 #endif
 
 #include "wimlib.h"
@@ -89,6 +93,9 @@
 static bool wimfile_in_use[MAX_NUM_WIMS];
 static int in_use_wimfile_indices[MAX_NUM_WIMS];
 static int num_wimfiles_in_use = 0;
+#ifndef _WIN32
+static u32 filesystem_type;
+#endif
 
 static void
 assertion_failed(int line, const char *format, ...)
@@ -120,15 +127,22 @@ static void
 change_to_temporary_directory(void)
 {
 #ifdef _WIN32
-       ASSERT(SetCurrentDirectory(L"E:\\"),
-              "failed to change directory to E:\\");
-#else
-       const char *tmpdir = getenv("TMPDIR");
-       if (!tmpdir)
-               tmpdir = P_tmpdir;
+       const wchar_t *tmpdir = _wgetenv(T("TMPDIR"));
+
+       ASSERT(tmpdir != NULL, "TMPDIR must be set");
+       _wmkdir(tmpdir);
+       ASSERT(!_wchdir(tmpdir),
+              "failed to change to temporary directory '%ls'", tmpdir);
+#else /* _WIN32 */
+       const char *tmpdir = getenv("TMPDIR") ?: P_tmpdir;
+       struct statfs fs;
+
+       mkdir(tmpdir, 0700);
        ASSERT(!chdir(tmpdir),
-              "failed to change to temporary directory \"%s\": %m", tmpdir);
-#endif
+              "failed to change to temporary directory '%s': %m", tmpdir);
+       ASSERT(!statfs(".", &fs), "statfs of '%s' failed: %m", tmpdir);
+       filesystem_type = fs.f_type;
+#endif /* !_WIN32 */
 }
 
 static void __attribute__((unused))
@@ -334,20 +348,26 @@ delete_directory_tree(const tchar *name)
 
 #endif /* !_WIN32 */
 
-static uint32_t
+static u64 random_state;
+
+static u32
 rand32(void)
 {
-       static uint64_t state;
-
-       /* A simple linear congruential generator  */
-       state = (state * 25214903917 + 11) & (((uint64_t)1 << 48) - 1);
-       return state >> 16;
+       /* A simple linear congruential generator */
+       random_state = (random_state * 25214903917 + 11) % (1ULL << 48);
+       return random_state >> 16;
 }
 
-static inline bool
+static bool
 randbool(void)
 {
-       return rand32() & 1;
+       return rand32() % 2;
+}
+
+static u64
+rand64(void)
+{
+       return ((u64)rand32() << 32) | rand32();
 }
 
 static tchar wimfile[32];
@@ -498,7 +518,7 @@ get_random_write_flags(void)
        return write_flags;
 }
 
-static uint32_t
+static u32
 get_random_chunk_size(int min_order, int max_order)
 {
        return 1 << (min_order + (rand32() % (max_order - min_order + 1)));
@@ -511,8 +531,8 @@ op__create_new_wim(void)
 
        const tchar *wimfile;
        enum wimlib_compression_type ctype = WIMLIB_COMPRESSION_TYPE_NONE;
-       uint32_t chunk_size = 0;
-       uint32_t solid_chunk_size = 0;
+       u32 chunk_size = 0;
+       u32 solid_chunk_size = 0;
        int write_flags;
        WIMStruct *wim;
 
@@ -786,6 +806,8 @@ op__apply_and_capture_test(void)
                extract_flags |= WIMLIB_EXTRACT_FLAG_UNIX_DATA;
                add_flags |= WIMLIB_ADD_FLAG_UNIX_DATA;
                cmp_flags |= WIMLIB_CMP_FLAG_UNIX_MODE;
+               if (filesystem_type == EXT4_SUPER_MAGIC)
+                       cmp_flags |= WIMLIB_CMP_FLAG_EXT4;
 #endif /* !_WIN32 */
        }
        add_flags |= WIMLIB_ADD_FLAG_NORPFIX;
@@ -812,10 +834,15 @@ op__apply_and_capture_test(void)
 
 #ifdef _WIN32
 
-/* Enumerate and unregister all backing WIMs from the specified volume  */
+/*
+ * Enumerate and unregister all backing WIMs from the volume containing the
+ * current directory.
+ */
 static void
-unregister_all_backing_wims(const tchar drive_letter)
+unregister_all_backing_wims(void)
 {
+       wchar_t full_path[MAX_PATH];
+       DWORD path_len;
        wchar_t volume[7];
        HANDLE h;
        void *overlay_list;
@@ -826,8 +853,12 @@ unregister_all_backing_wims(const tchar drive_letter)
                WIM_PROVIDER_REMOVE_OVERLAY_INPUT wim;
        } in;
 
-       wsprintf(volume, L"\\\\.\\%lc:", drive_letter);
+       path_len = GetFullPathName(L".", ARRAY_LEN(full_path), full_path, NULL);
+       ASSERT(path_len > 0,
+              "Failed to get full path of current directory; error=%u",
+              (unsigned)GetLastError());
 
+       wsprintf(volume, L"\\\\.\\%lc:", full_path[0]);
        h = CreateFile(volume, GENERIC_READ | GENERIC_WRITE,
                       FILE_SHARE_VALID_FLAGS, NULL, OPEN_EXISTING,
                       FILE_FLAG_BACKUP_SEMANTICS, NULL);
@@ -859,11 +890,11 @@ unregister_all_backing_wims(const tchar drive_letter)
                ASSERT(DeviceIoControl(h, FSCTL_REMOVE_OVERLAY, &in, sizeof(in),
                                       NULL, 0, &bytes_returned, NULL),
                       "FSCTL_REMOVE_OVERLAY failed; error=%u",
-                      (unsigned )GetLastError());
+                      (unsigned)GetLastError());
                if (entry->NextEntryOffset == 0)
                        break;
                entry = (const WIM_PROVIDER_OVERLAY_ENTRY *)
-                       ((const uint8_t *)entry + entry->NextEntryOffset);
+                       ((const u8 *)entry + entry->NextEntryOffset);
        }
        free(overlay_list);
        CloseHandle(h);
@@ -884,7 +915,7 @@ op__wimboot_test(void)
 
        index = select_random_wimfile_index();
 
-       unregister_all_backing_wims(L'E');
+       unregister_all_backing_wims();
        copy_file(get_wimfile(index), L"wimboot.wim");
 
        CHECK_RET(wimlib_open_wim(L"wimboot.wim", 0, &wim));
@@ -953,7 +984,7 @@ op__split_test(void)
        WIMStruct *wim;
        WIMStruct *swm;
        WIMStruct *joined_wim;
-       uint64_t part_size;
+       u64 part_size;
        int write_flags;
        const tchar *globs[] = { T("tmp*.swm") };
        int image_count;
@@ -1052,27 +1083,36 @@ int wmain(int argc, wchar_t **argv);
 int
 main(int argc, tchar **argv)
 {
-       unsigned long long num_iterations;
-
-       if (argc < 2) {
-               num_iterations = ULLONG_MAX;
-               printf("Starting test runner\n");
-       } else {
-               num_iterations = tstrtoull(argv[1], NULL, 10);
-               printf("Starting test runner with %llu iterations\n",
-                      num_iterations);
-       }
+       unsigned long time_limit = 0;
+       time_t start_time;
+       u64 i;
+
+       /* If you want to make the tests deterministic, delete this line. */
+       random_state = ((u64)time(NULL) << 16) ^ getpid();
+
+       if (argc >= 2)
+               time_limit = tstrtoul(argv[1], NULL, 10);
+
+       if (time_limit == 0)
+               printf("Starting wlfuzz with no time limit\n");
+       else
+               printf("Starting wlfuzz with time limit of %lu seconds\n",
+                      time_limit);
 
-       CHECK_RET(wimlib_global_init(0));
+       CHECK_RET(wimlib_global_init(WIMLIB_INIT_FLAG_STRICT_APPLY_PRIVILEGES |
+                                    WIMLIB_INIT_FLAG_STRICT_CAPTURE_PRIVILEGES));
        wimlib_set_print_errors(true);
+       wimlib_seed_random(rand64());
 
        change_to_temporary_directory();
 
-       for (int i = 0; i < MAX_NUM_WIMS; i++)
+       for (i = 0; i < MAX_NUM_WIMS; i++)
                ASSERT(!tunlink(get_wimfile(i)) || errno == ENOENT, "unlink: %m");
 
-       for (unsigned long long i = 0; i < num_iterations; i++) {
-               printf("--> iteration %llu\n", i);
+       i = 0;
+       start_time = time(NULL);
+       while (time_limit == 0 || time(NULL) < start_time + time_limit) {
+               printf("--> iteration %"PRIu64"\n", ++i);
                (*operation_table[rand32() % ARRAY_LEN(operation_table)])();
        }