Mercurial > molko
view libmlk-util/mlk/util/fmemopen.c @ 574:8cf895e51fb6
win: various improvements
author | David Demelier <markand@malikania.fr> |
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date | Fri, 10 Mar 2023 19:23:31 +0100 |
parents | cba66f7d8a53 |
children | 64150963f567 |
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/* * fmemopen.h -- fmemopen polyfill * * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or 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 "sysconfig.h" #include <stdio.h> #if !defined(MLK_HAVE_FMEMOPEN) #if defined(_WIN32) #include <sys/stat.h> #include <sys/types.h> #include <fcntl.h> #include <io.h> #include <share.h> #include <stdio.h> #include <string.h> #include <windows.h> FILE * mlk_util_fmemopen(void *buf, size_t size, const char *mode) { char temppath[MAX_PATH + 1], filename[MAX_PATH + 1]; FILE *fp; int fd, flags; flags = _O_CREAT | _O_SHORT_LIVED | _O_TEMPORARY | _O_RDWR | _O_NOINHERIT; if (strchr(mode, 'b')) flags |= _O_BINARY; if (!GetTempPathA(sizeof (temppath), temppath)) return NULL; if (!GetTempFileNameA(temppath, "MLK", 0, filename)) return NULL; if (_sopen_s(&fd, filename, flags, _SH_DENYRW, _S_IREAD | _S_IWRITE) < 0) return NULL; if (!(fp = _fdopen(fd, mode))) { _close(fd); return NULL; } fwrite(buf, size, 1, fp); rewind(fp); return fp; } #else FILE * mlk_util_fmemopen(void *buf, size_t len, const char *type) { (void)buf; (void)len; (void)type; /* Unsupported platform. */ return NULL; } #endif #else FILE * mlk_util_fmemopen(void *buf, size_t len, const char *type) { return fmemopen(buf, len, type); } #endif