84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
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* Copyright 2020 Lag Free Games, LLC
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "memstream.h"
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#include <stdlib.h>
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bool
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u_memstream_open(struct u_memstream *mem, char **bufp, size_t *sizep)
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{
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#if defined(_WIN32)
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bool success = false;
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char path[MAX_PATH];
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DWORD dwResult = GetTempPath(MAX_PATH, path);
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if ((dwResult > 0) && (dwResult < MAX_PATH)) {
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char *temp = mem->temp;
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UINT uResult = GetTempFileName(path, "MEMSTREAM", 0, temp);
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if (uResult != 0) {
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FILE *f = fopen(temp, "w+b");
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success = f != NULL;
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if (success)
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{
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mem->f = f;
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mem->bufp = bufp;
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mem->sizep = sizep;
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}
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}
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}
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return success;
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#elif defined(__APPLE__)
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return false;
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#else
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FILE *const f = open_memstream(bufp, sizep);
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mem->f = f;
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return f != NULL;
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#endif
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}
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void
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u_memstream_close(struct u_memstream *mem)
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{
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FILE *const f = mem->f;
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#ifdef _WIN32
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long size = ftell(f);
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if (size > 0) {
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char *buf = malloc(size);
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fseek(f, 0, SEEK_SET);
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fread(buf, 1, size, f);
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*mem->bufp = buf;
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*mem->sizep = size;
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}
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remove(mem->temp);
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#endif
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fclose(f);
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}
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