mirror of https://github.com/zeldaret/mm.git
770 lines
15 KiB
C
770 lines
15 KiB
C
/*
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* wow.h
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*
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* a small collection of functions
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* to make writing software easier
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*
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* z64me <z64.me>
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*
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*/
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#ifndef WOW_H_INCLUDED
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#define WOW_H_INCLUDED
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#include <stddef.h> /* size_t */
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#include <stdio.h> /* file ops */
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#include <stdlib.h> /* alloc */
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#include <sys/stat.h> /* stat */
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#include <string.h> /* strdup */
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#include <unistd.h> /* chdir, getcwd */
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#include <stdarg.h>
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#include <locale.h>
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#ifdef _WIN32
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#include <windows.h>
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#undef near
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#undef far
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#endif
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#if (_WIN32 && UNICODE)
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#define wow_main int wmain(int argc, wchar_t *Wargv[])
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#define wow_main_argv char **argv = wow_conv_args(argc, (void*)Wargv)
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#else
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#define wow_main int main(int argc, char *argv[])
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#define wow_main_argv do{}while(0)
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#endif
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#ifndef WOW_API_PREFIX
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#define WOW_API_PREFIX
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#endif
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WOW_API_PREFIX
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void *
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wow_utf8_to_wchar(const char *str);
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WOW_API_PREFIX
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char *
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wow_wchar_to_utf8(void *wstr);
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/* converts argv[] from wchar to char win32, in place */
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WOW_API_PREFIX
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void *
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wow_conv_args(int argc, void *argv[]);
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/* returns non-zero if path is a directory */
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WOW_API_PREFIX
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int
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wow_is_dir_w(void const *path);
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/* returns non-zero if path is a directory */
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WOW_API_PREFIX
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int
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wow_is_dir(char const *path);
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/* fread abstraction that falls back to buffer-based fread *
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* if a big fread fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fread_bytes(void *ptr, size_t bytes, FILE *stream);
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/* fwrite abstraction that falls back to buffer-based fwrite *
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* if a big fwrite fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fwrite_bytes(const void *ptr, size_t bytes, FILE *stream);
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/* fread abstraction that falls back to buffer-based fread *
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* if a big fread fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
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/* fwrite abstraction that falls back to buffer-based fwrite *
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* if a big fwrite fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
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/* fopen abstraction for utf8 support on windows win32 */
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WOW_API_PREFIX
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FILE *
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wow_fopen(char const *name, char const *mode);
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/* remove abstraction for utf8 support on windows win32 */
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WOW_API_PREFIX
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int
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wow_remove(char const *path);
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/* mkdir */
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WOW_API_PREFIX
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int
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wow_mkdir(char const *path);
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/* chdir */
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WOW_API_PREFIX
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int
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wow_chdir(char const *path);
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/* getcwd */
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WOW_API_PREFIX
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char *
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wow_getcwd(char *buf, size_t size);
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/* getcwd_safe */
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WOW_API_PREFIX
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char *
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wow_getcwd_safe(char *buf, size_t size);
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/* system */
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WOW_API_PREFIX
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int
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wow_system(char const *path);
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WOW_API_PREFIX void die(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)))
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;
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WOW_API_PREFIX void *calloc_safe(size_t nmemb, size_t size);
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WOW_API_PREFIX void *malloc_safe(size_t size);
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WOW_API_PREFIX void *realloc_safe(void *ptr, size_t size);
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WOW_API_PREFIX char *strdup_safe(const char *s);
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WOW_API_PREFIX void *memdup_safe(void *ptr, size_t size);
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#ifdef WOW_IMPLEMENTATION
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WOW_API_PREFIX void die(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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#ifdef UNICODE
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char buf[4096];
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vsprintf(buf, fmt, args);
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wchar_t *wc = wow_utf8_to_wchar(buf);
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setlocale(LC_ALL, "");
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fwprintf(stderr, L"%ls", wc);
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free(wc);
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#else
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vfprintf(stderr, fmt, args);
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#endif
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va_end(args);
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fprintf(stderr, "\n");
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exit(EXIT_FAILURE);
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}
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WOW_API_PREFIX void *calloc_safe(size_t nmemb, size_t size)
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{
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void *result = calloc(nmemb, size);
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if (!result)
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die("memory error");
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return result;
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}
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WOW_API_PREFIX void *malloc_safe(size_t size)
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{
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void *result = malloc(size);
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if (!result)
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die("memory error");
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return result;
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}
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WOW_API_PREFIX void *realloc_safe(void *ptr, size_t size)
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{
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void *result = realloc(ptr, size);
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if (!result)
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die("memory error");
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return result;
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}
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WOW_API_PREFIX char *strdup_safe(const char *s)
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{
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char *result;
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int n;
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if (!s)
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return 0;
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n = strlen(s) + 1;
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result = malloc_safe(n);
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strcpy(result, s);
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return result;
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}
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WOW_API_PREFIX void *memdup_safe(void *ptr, size_t size)
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{
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void *result;
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if (!ptr || !size)
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return 0;
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result = malloc_safe(size);
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memcpy(result, ptr, size);
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return result;
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}
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WOW_API_PREFIX
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void *
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wow_utf8_to_wchar(const char *str)
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{
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#ifdef UNICODE
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extern __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide);
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wchar_t *wstr;
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int wstr_sz = (strlen(str) + 1) * 16;//sizeof(*wstr);
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wstr = calloc_safe(1, wstr_sz);
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MultiByteToWideChar(65001/*utf8*/, 0, str, -1, wstr, wstr_sz);
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return wstr;
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#else
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return strdup(str);
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#endif
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}
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WOW_API_PREFIX
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char *
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wow_wchar_to_utf8_buf(void *wstr, void *dst, int dst_max)
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{
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#ifdef UNICODE
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extern __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
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WideCharToMultiByte(65001/*utf8*/, 0, wstr, -1, dst, dst_max, NULL, NULL);
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return dst;
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#else
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(void)dst_max; /* unused parameter */
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return strcpy(dst, wstr);
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#endif
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}
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WOW_API_PREFIX
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char *
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wow_wchar_to_utf8(void *wstr)
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{
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#ifdef UNICODE
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extern __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
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char *str;
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int str_sz = (wcslen(wstr) + 1) * sizeof(*str);
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str = calloc_safe(1, str_sz);
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WideCharToMultiByte(65001/*utf8*/, 0, wstr, -1, str, str_sz, NULL, NULL);
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return str;
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#else
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return strdup(wstr);
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#endif
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}
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WOW_API_PREFIX
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char *
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wow_wchar_to_utf8_inplace(void *wstr)
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{
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#ifdef UNICODE
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extern __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
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char buf[4096];
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char *str;
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int wstr_len = wcslen(wstr);
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unsigned str_sz = (wstr_len + 1) * sizeof(*str);
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if (str_sz >= sizeof(buf))
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str = malloc_safe(str_sz);
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else
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str = buf;
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WideCharToMultiByte(65001/*utf8*/, 0, wstr, -1, str, str_sz, NULL, NULL);
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memcpy(wstr, str, wstr_len + 1);
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((char*)wstr)[wstr_len+1] = '\0';
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if (str != buf)
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free(str);
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return wstr;
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#else
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return wstr;
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#endif
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}
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/* argument abstraction: converts argv[] from wchar to char win32 */
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WOW_API_PREFIX
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void *
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wow_conv_args(int argc, void *argv[])
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{
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#ifdef UNICODE
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int i;
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for (i=0; i < argc; ++i)
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{
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//fprintf(stderr, "[%d]: %s\n", i, argv[i]);
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//fwprintf(stderr, L"[%d]: %s\n", i, (wchar_t*)argv[i]);
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argv[i] = wow_wchar_to_utf8_inplace(argv[i]);
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//fwprintf(stderr, L"[%d]: %s\n", i, wow_utf8_to_wchar(argv[i]));
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}
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#else
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(void)argc; /* unused parameter */
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#endif
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return argv;
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}
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/* returns non-zero if path is a directory */
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WOW_API_PREFIX
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int
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wow_is_dir_w(void const *path)
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{
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struct stat s;
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#if (_WIN32 && UNICODE)
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if (wstat(path, &s) == 0)
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#else
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if (stat(path, &s) == 0)
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#endif
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{
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if (s.st_mode & S_IFDIR)
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return 1;
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}
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return 0;
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}
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/* returns non-zero if path is a directory */
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WOW_API_PREFIX
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int
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wow_is_dir(char const *path)
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{
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int rv;
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void *wpath = 0;
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#if (_WIN32 && UNICODE)
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wpath = wow_utf8_to_wchar(path);
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rv = wow_is_dir_w(wpath);
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#else
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rv = wow_is_dir_w(path);
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#endif
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if (wpath)
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free(wpath);
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return rv;
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}
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/* fread abstraction that falls back to buffer-based fread *
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* if a big fread fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fread_bytes(void *ptr, size_t bytes, FILE *stream)
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{
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if (!stream || !ptr || !bytes)
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return 0;
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unsigned char *ptr8 = ptr;
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size_t Oofs = ftell(stream);
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size_t bufsz = 1024 * 1024; /* 1 mb at a time */
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size_t Obytes = bytes;
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size_t rem;
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fseek(stream, 0, SEEK_END);
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rem = ftell(stream) - Oofs;
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fseek(stream, Oofs, SEEK_SET);
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if (bytes > rem)
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bytes = rem;
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/* everything worked */
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if (fread(ptr, 1, bytes, stream) == bytes)
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return Obytes;
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/* failed: try falling back to slower buffered read */
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fseek(stream, Oofs, SEEK_SET);
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while (bytes)
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{
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/* don't read past end */
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if (bytes < bufsz)
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bufsz = bytes;
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if (bufsz > rem)
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{
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bytes = rem;
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bufsz = rem;
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}
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/* still failed */
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if (fread(ptr8, 1, bufsz, stream) != bufsz)
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return 0;
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/* advance */
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ptr8 += bufsz;
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bytes -= bufsz;
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rem -= bufsz;
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}
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/* success */
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return Obytes;
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}
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/* fwrite abstraction that falls back to buffer-based fwrite *
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* if a big fwrite fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fwrite_bytes(const void *ptr, size_t bytes, FILE *stream)
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{
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if (!stream || !ptr || !bytes)
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return 0;
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const unsigned char *ptr8 = ptr;
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size_t bufsz = 1024 * 1024; /* 1 mb at a time */
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size_t Obytes = bytes;
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/* everything worked */
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if (fwrite(ptr, 1, bytes, stream) == bytes)
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return bytes;
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/* failed: try falling back to slower buffered read */
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while (bytes)
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{
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/* don't read past end */
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if (bytes < bufsz)
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bufsz = bytes;
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/* still failed */
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if (fwrite(ptr8, 1, bufsz, stream) != bufsz)
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return 0;
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/* advance */
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ptr8 += bufsz;
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bytes -= bufsz;
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}
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/* success */
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return Obytes;
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}
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/* fread abstraction that falls back to buffer-based fread *
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* if a big fread fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
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{
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if (!stream || !ptr || !size || !nmemb)
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return 0;
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if (wow_fread_bytes(ptr, size * nmemb, stream) == size * nmemb)
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return nmemb;
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return 0;
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}
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/* fwrite abstraction that falls back to buffer-based fwrite *
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* if a big fwrite fails; if that still fails, returns 0 */
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WOW_API_PREFIX
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size_t
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wow_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
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{
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if (!stream || !ptr || !size || !nmemb)
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return 0;
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if (wow_fwrite_bytes(ptr, size * nmemb, stream) == size * nmemb)
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return nmemb;
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return 0;
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}
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/* fopen abstraction for utf8 support on windows win32 */
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WOW_API_PREFIX
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FILE *
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wow_fopen(char const *name, char const *mode)
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{
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#ifdef UNICODE
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void *wname = 0;
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void *wmode = 0;
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FILE *fp = 0;
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wname = wow_utf8_to_wchar(name);
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if (!wname)
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goto L_cleanup;
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/* TODO eventually, an error message would be cool */
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if (wow_is_dir_w(wname))
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goto L_cleanup;
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wmode = wow_utf8_to_wchar(mode);
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if (!wmode)
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goto L_cleanup;
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fp = _wfopen(wname, wmode);
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L_cleanup:
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if (wname) free(wname);
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if (wmode) free(wmode);
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if (fp)
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return fp;
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return 0;
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#else
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/* TODO eventually, an error message would be cool */
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if (wow_is_dir_w(name))
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return 0;
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return fopen(name, mode);
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#endif
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}
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/* remove abstraction for utf8 support on windows win32 */
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WOW_API_PREFIX
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int
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wow_remove(char const *path)
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{
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#ifdef UNICODE
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void *wpath = 0;
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int rval;
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wpath = wow_utf8_to_wchar(path);
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if (!wpath)
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return -1;
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rval = _wremove(wpath);
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free(wpath);
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return rval;
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#else
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return remove(path);
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#endif
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}
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/* mkdir */
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WOW_API_PREFIX
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int
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wow_mkdir(char const *path)
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{
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#if defined(_WIN32) && defined(UNICODE)
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extern int _wmkdir(const wchar_t *);
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void *wname = 0;
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int rval;
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wname = wow_utf8_to_wchar(path);
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if (!wname)
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return -1;
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rval = _wmkdir(wname);
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if (wname)
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free(wname);
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return rval;
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#elif defined(_WIN32) /* win32 no unicode */
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extern int _mkdir(const char *);
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return _mkdir(path);
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#else /* ! _WIN32 */
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return mkdir(path, 0777);
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#endif
|
|
}
|
|
|
|
|
|
/* chdir */
|
|
WOW_API_PREFIX
|
|
int
|
|
wow_chdir(char const *path)
|
|
{
|
|
#if defined(_WIN32) && defined(UNICODE)
|
|
extern int _wchdir(const wchar_t *);
|
|
void *wname = 0;
|
|
int rval;
|
|
|
|
wname = wow_utf8_to_wchar(path);
|
|
if (!wname)
|
|
return -1;
|
|
|
|
rval = _wchdir(wname);
|
|
|
|
if (wname)
|
|
free(wname);
|
|
|
|
return rval;
|
|
#elif defined(_WIN32) /* win32 no unicode */
|
|
extern int _chdir(const char *);
|
|
return _chdir(path);
|
|
#else /* ! _WIN32 */
|
|
return chdir(path);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* getcwd */
|
|
WOW_API_PREFIX
|
|
char *
|
|
wow_getcwd(char *buf, size_t size)
|
|
{
|
|
#if defined(_WIN32) && defined(UNICODE)
|
|
//extern int _wgetcwd(const wchar_t *, int);
|
|
extern _CRTIMP wchar_t *__cdecl _wgetcwd(wchar_t *_DstBuf,int _SizeInWords);
|
|
wchar_t wname[4096];
|
|
|
|
if (!buf || !size)
|
|
return 0;
|
|
|
|
if (!_wgetcwd(wname, sizeof(wname) / sizeof(wname[0])))
|
|
return 0;
|
|
|
|
return wow_wchar_to_utf8_buf(wname, buf, size);
|
|
#elif defined(_WIN32) /* win32 no unicode */
|
|
//extern char *_getcwd(char *, int);
|
|
return _getcwd(buf, size);
|
|
#else /* ! _WIN32 */
|
|
return getcwd(buf, size);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* getcwd_safe */
|
|
WOW_API_PREFIX
|
|
char *
|
|
wow_getcwd_safe(char *buf, size_t size)
|
|
{
|
|
char *result = wow_getcwd(buf, size);
|
|
|
|
if (!result)
|
|
die("failed to get current working directory");
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* system */
|
|
WOW_API_PREFIX
|
|
int
|
|
wow_system(char const *path)
|
|
{
|
|
#if defined(_WIN32) && defined(UNICODE)
|
|
void *wname = 0;
|
|
int rval;
|
|
|
|
wname = wow_utf8_to_wchar(path);
|
|
if (!wname)
|
|
return -1;
|
|
|
|
rval = _wsystem(wname);
|
|
|
|
if (wname)
|
|
free(wname);
|
|
|
|
return rval;
|
|
#else /* not win32 unicode */
|
|
return system(path);
|
|
#endif
|
|
}
|
|
|
|
|
|
/* system_gui */
|
|
WOW_API_PREFIX
|
|
int
|
|
wow_system_gui(char const *name, const char *param)
|
|
{
|
|
#if defined(_WIN32)
|
|
STARTUPINFOW si;
|
|
PROCESS_INFORMATION pi;
|
|
|
|
ZeroMemory(&si, sizeof(si));
|
|
si.cb = sizeof(si);
|
|
ZeroMemory(&pi, sizeof(pi));
|
|
int rval = 0 /*success */;
|
|
//extern int ShellExecuteA(void *hwnd, void *op, void *file, void *param, void *dir, int cmd);
|
|
//extern int ShellExecuteW(void *hwnd, void *op, void *file, void *param, void *dir, int cmd);
|
|
//const int SW_SHOWNORMAL = 1;
|
|
#if defined(UNICODE)
|
|
void *wname = 0;
|
|
void *wparam = 0;
|
|
|
|
wname = wow_utf8_to_wchar(name);
|
|
if (!wname)
|
|
{
|
|
return -1;
|
|
}
|
|
wparam = wow_utf8_to_wchar(param);
|
|
if (!wparam)
|
|
{
|
|
free(wname);
|
|
return -1;
|
|
}
|
|
|
|
#if 0
|
|
if (CreateProcessW(
|
|
wname, wparam
|
|
, NULL, NULL
|
|
, FALSE
|
|
, CREATE_NO_WINDOW
|
|
, NULL
|
|
, NULL
|
|
, &si, &pi)
|
|
)
|
|
{
|
|
//WaitForSingleObject(pi.hProcess, INFINITE);
|
|
//CloseHandle(pi.hProcess);
|
|
//CloseHandle(pi.hThread);
|
|
}
|
|
else
|
|
rval = 1;
|
|
#else
|
|
rval = (int)ShellExecuteW(NULL, L"open", wname, wparam, L".", SW_SHOWNORMAL);
|
|
rval = rval <= 32;
|
|
#endif
|
|
|
|
free(wname);
|
|
free(wparam);
|
|
#else /* win32 non-unicode */
|
|
#if 0
|
|
if (CreateProcessA(
|
|
name, x
|
|
, NULL, NULL
|
|
, FALSE
|
|
, CREATE_NO_WINDOW
|
|
, NULL
|
|
, NULL
|
|
, &si, &pi)
|
|
)
|
|
{
|
|
//WaitForSingleObject(pi.hProcess, INFINITE);
|
|
//CloseHandle(pi.hProcess);
|
|
//CloseHandle(pi.hThread);
|
|
}
|
|
else
|
|
rval = 1;
|
|
#else
|
|
rval = (int)ShellExecuteA(NULL, "open", name, param, ".", SW_SHOWNORMAL);
|
|
rval = rval <= 32;
|
|
#endif
|
|
#endif
|
|
return rval;//rval <= 32;
|
|
#else /* not win32 unicode */
|
|
char *x = malloc_safe(strlen(name) + strlen(param) + 128);
|
|
if (!x)
|
|
return -1;
|
|
strcpy(x, "\"");
|
|
strcat(x, name);
|
|
strcat(x, "\" ");
|
|
strcat(x, param);
|
|
int rval = system(x);
|
|
free(x);
|
|
return rval;
|
|
#endif
|
|
}
|
|
|
|
#endif /* WOW_IMPLEMENTATION */
|
|
|
|
#endif /* WOW_H_INCLUDED */
|
|
|