--- /dev/null
+/*
+ * Copyright (C) 2012
+ * Wolfgang Bumiller
+ * Dale Weiler
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "gmqcc.h"
+
+/*
+ * This is essentially a "wrapper" interface around standard C's IO
+ * library. There is two reason we implement this, 1) visual studio
+ * hearts for "secure" varations, as part of it's "Security Enhancements
+ * in the CRT" (http://msdn.microsoft.com/en-us/library/8ef0s5kh.aspx).
+ * 2) But one of the greater reasons is for the possibility of large file
+ * support in the future. I don't expect to reach the 2GB limit any
+ * time soon (mainly because that would be insane). But when it comes
+ * to adding support for some other larger IO tasks (in the test-suite,
+ * or even the QCVM we'll need it). There is also a third possibility of
+ * building .dat files directly from zip files (which would be very cool
+ * at least I think so).
+ */
+#ifdef _MSC_VER
+/* {{{ */
+ /*
+ * Visual Studio has security CRT features which I actually want to support
+ * if we ever port to Windows 8, and want GMQCC to be API safe.
+ *
+ * We handle them here, for all file-operations.
+ */
+
+ static void file_exception (
+ const wchar_t *expression,
+ const wchar_t *function,
+ const wchar_t *file,
+ unsigned int line,
+ uintptr_t reserved
+ ) {
+ wprintf(L"Invalid parameter dectected %s:%d %s [%s]\n", file, line, function, expression);
+ wprintf(L"Aborting ...\n");
+ abort();
+ }
+
+ static void file_init() {
+ static bool init = false;
+
+ if (init)
+ return;
+
+ _set_invalid_parameter_handler(&file_exception);
+
+ /*
+ * Turnoff the message box for CRT asserations otherwise
+ * we don't get the error reported to the console as we should
+ * otherwise get.
+ */
+ _CrtSetReportMode(_CRT_ASSERT, 0);
+ init = !init;
+ }
+
+
+ FILE *file_open(const char *filename, const char *mode) {
+ FILE *handle = NULL;
+ file_init();
+
+ return ((fopen_s(&handle, filename, mode) != 0) ? NULL : handle;
+ }
+
+ size_t file_read(void *buffer, size_t size, size_t count, FILE *fp) {
+ file_init();
+ return fread_s(buffer, size*count, size, count, fp);
+ }
+
+ int file_printf(FILE *fp, const char *format, ...) {
+ int rt;
+ va_list va;
+ va_start(va, format);
+
+ file_init();
+ rt = vfprintf_s(fp, format, va);
+ va_end (va);
+
+ return rt;
+ }
+
+/* }}} */
+#else
+/* {{{ */
+ /*
+ * All other compilers/platforms that don't restrict insane policies on
+ * IO for no aparent reason.
+ */
+ FILE *file_open(const char *filename, const char *mode) {
+ return fopen(filename, mode);
+ }
+
+ size_t file_read(void *buffer, size_t size, size_t count, FILE *fp) {
+ return fread(buffer, size, count, fp);
+ }
+
+ int file_printf(FILE *fp, const char *format, ...) {
+ int rt;
+ va_list va;
+ va_start(va, format);
+ rt = vfprintf(fp, format, va);
+ va_end (va);
+
+ return rt;
+ }
+
+/* }}} */
+#endif
+
+/*
+ * These are implemented as just generic wrappers to keep consistency in
+ * the API. Not as macros though
+ */
+void GMQCC_INLINE file_close(FILE *fp) {
+ /* Invokes file_exception on windows if fp is null */
+ fclose (fp);
+}
+
+size_t GMQCC_INLINE file_write (
+ const void *buffer,
+ size_t size,
+ size_t count,
+ FILE *fp
+) {
+ /* Invokes file_exception on windows if fp is null */
+ return fwrite(buffer, size, count, fp);
+}
+
+int GMQCC_INLINE file_error(FILE *fp) {
+ /* Invokes file_exception on windows if fp is null */
+ return ferror(fp);
+}
+
+int GMQCC_INLINE file_getc(FILE *fp) {
+ /* Invokes file_exception on windows if fp is null */
+ return fgetc(fp);
+}
+
+int GMQCC_INLINE file_puts(FILE *fp, const char *str) {
+ /* Invokes file_exception on windows if fp is null */
+ return fputs(str, fp);
+}
+
+int GMQCC_INLINE file_seek(FILE *fp, long int off, int whence) {
+ /* Invokes file_exception on windows if fp is null */
+ return fseek(fp, off, whence);
+}
+
+/*
+ * Implements libc getline for systems that don't have it, which is
+ * assmed all. This works the same as getline().
+ */
+int file_getline(char **lineptr, size_t *n, FILE *stream) {
+ int chr;
+ int ret;
+ char *pos;
+
+ if (!lineptr || !n || !stream)
+ return -1;
+ if (!*lineptr) {
+ if (!(*lineptr = (char*)mem_a((*n=64))))
+ return -1;
+ }
+
+ chr = *n;
+ pos = *lineptr;
+
+ for (;;) {
+ int c = file_getc(stream);
+
+ if (chr < 2) {
+ *n += (*n > 16) ? *n : 64;
+ chr = *n + *lineptr - pos;
+ if (!(*lineptr = (char*)mem_r(*lineptr,*n)))
+ return -1;
+ pos = *n - chr + *lineptr;
+ }
+
+ if (ferror(stream))
+ return -1;
+ if (c == EOF) {
+ if (pos == *lineptr)
+ return -1;
+ else
+ break;
+ }
+
+ *pos++ = c;
+ chr--;
+ if (c == '\n')
+ break;
+ }
+ *pos = '\0';
+ return (ret = pos - *lineptr);
+}
projects / xonotic / gmqcc.git / blobdiff