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26 * This is essentially a "wrapper" interface around standard C's IO
27 * library. There is two reason we implement this, 1) visual studio
28 * hearts for "secure" varations, as part of it's "Security Enhancements
29 * in the CRT" (http://msdn.microsoft.com/en-us/library/8ef0s5kh.aspx).
30 * 2) But one of the greater reasons is for the possibility of large file
31 * support in the future. I don't expect to reach the 2GB limit any
32 * time soon (mainly because that would be insane). But when it comes
33 * to adding support for some other larger IO tasks (in the test-suite,
34 * or even the QCVM we'll need it). There is also a third possibility of
35 * building .dat files directly from zip files (which would be very cool
36 * at least I think so).
39 #include <crtdbg.h> /* _CrtSetReportMode, _CRT_ASSERT */
42 * Visual Studio has security CRT features which I actually want to support
43 * if we ever port to Windows 8, and want GMQCC to be API safe.
45 * We handle them here, for all file-operations.
48 static void file_exception (
49 const wchar_t *expression,
50 const wchar_t *function,
55 wprintf(L"Invalid parameter dectected %s:%d %s [%s]\n", file, line, function, expression);
56 wprintf(L"Aborting ...\n");
60 static void file_init() {
61 static bool init = false;
66 _set_invalid_parameter_handler(&file_exception);
69 * Turnoff the message box for CRT asserations otherwise
70 * we don't get the error reported to the console as we should
73 _CrtSetReportMode(_CRT_ASSERT, 0);
78 FILE *fs_file_open(const char *filename, const char *mode) {
82 return (fopen_s(&handle, filename, mode) != 0) ? NULL : handle;
85 size_t fs_file_read(void *buffer, size_t size, size_t count, FILE *fp) {
87 return fread_s(buffer, size*count, size, count, fp);
90 int fs_file_printf(FILE *fp, const char *format, ...) {
96 rt = vfprintf_s(fp, format, va);
106 * All other compilers/platforms that don't restrict insane policies on
107 * IO for no aparent reason.
109 FILE *fs_file_open(const char *filename, const char *mode) {
110 return fopen(filename, mode);
113 size_t fs_file_read(void *buffer, size_t size, size_t count, FILE *fp) {
114 return fread(buffer, size, count, fp);
117 int fs_file_printf(FILE *fp, const char *format, ...) {
120 va_start(va, format);
121 rt = vfprintf(fp, format, va);
131 * These are implemented as just generic wrappers to keep consistency in
132 * the API. Not as macros though
134 void fs_file_close(FILE *fp) {
135 /* Invokes file_exception on windows if fp is null */
139 size_t fs_file_write (
145 /* Invokes file_exception on windows if fp is null */
146 return fwrite(buffer, size, count, fp);
149 int fs_file_error(FILE *fp) {
150 /* Invokes file_exception on windows if fp is null */
154 int fs_file_getc(FILE *fp) {
155 /* Invokes file_exception on windows if fp is null */
159 int fs_file_puts(FILE *fp, const char *str) {
160 /* Invokes file_exception on windows if fp is null */
161 return fputs(str, fp);
164 int fs_file_seek(FILE *fp, long int off, int whence) {
165 /* Invokes file_exception on windows if fp is null */
166 return fseek(fp, off, whence);
169 long int fs_file_tell(FILE *fp) {
170 /* Invokes file_exception on windows if fp is null */
175 * Implements libc getline for systems that don't have it, which is
176 * assmed all. This works the same as getline().
178 int fs_file_getline(char **lineptr, size_t *n, FILE *stream) {
183 if (!lineptr || !n || !stream)
186 if (!(*lineptr = (char*)mem_a((*n=64))))
194 int c = fs_file_getc(stream);
197 *n += (*n > 16) ? *n : 64;
198 chr = *n + *lineptr - pos;
199 if (!(*lineptr = (char*)mem_r(*lineptr,*n)))
201 pos = *n - chr + *lineptr;
219 return (ret = pos - *lineptr);
223 * Now we implement some directory functionality. Windows lacks dirent.h
224 * this is such a pisss off, we implement it here.
226 #if defined(_WIN32) && !defined(__MINGW32__)
227 DIR *fs_dir_open(const char *name) {
228 DIR *dir = (DIR*)mem_a(sizeof(DIR) + strlen(name));
232 util_strncpy(dir->dd_name, name, strlen(name));
236 int fs_dir_close(DIR *dir) {
237 FindClose((HANDLE)dir->dd_handle);
242 struct dirent *fs_dir_read(DIR *dir) {
243 WIN32_FIND_DATA info;
247 if (!dir->dd_handle) {
250 size_t n = strlen(dir->dd_name);
251 if ((dirname = (char*)mem_a(n + 5) /* 4 + 1 */)) {
252 util_strncpy(dirname, dir->dd_name, n);
253 util_strncpy(dirname + n, "\\*.*", 4); /* 4 + 1 */
256 if (!(dirname = util_strdup("\\*.*")))
260 dir->dd_handle = (long)FindFirstFile(dirname, &info);
262 rets = !(!dir->dd_handle);
263 } else if (dir->dd_handle != -11) {
264 rets = FindNextFile ((HANDLE)dir->dd_handle, &info);
272 if ((data = (struct dirent*)mem_a(sizeof(struct dirent)))) {
273 util_strncpy(data->d_name, info.cFileName, FILENAME_MAX - 1);
274 data->d_name[FILENAME_MAX - 1] = '\0'; /* terminate */
275 data->d_namlen = strlen(data->d_name);
280 int fs_dir_change(const char *path) {
281 return !SetCurrentDirectory(path);
284 int fs_dir_make(const char *path) {
285 return !CreateDirectory(path, NULL);
288 # if !defined(__MINGW32__)
289 # include <sys/stat.h> /* mkdir */
291 int fs_dir_make(const char *path) {
292 return mkdir(path, 0700);
295 int fs_dir_make(const char *path) {
298 # endif /*! !defined(__MINGW32__) */
300 DIR *fs_dir_open(const char *name) {
301 return opendir(name);
304 int fs_dir_close(DIR *dir) {
305 return closedir(dir);
308 struct dirent *fs_dir_read(DIR *dir) {
312 #endif /*! defined(_WIN32) && !defined(__MINGW32__) */