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windows: fix MinGW-w64 build of win_file.c #4987

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windows: fix MinGW-w64 build of win_file.c #4987

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35 changes: 17 additions & 18 deletions core/shared/platform/windows/win_file.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@
#include "libc_errno.h"
#include "win_util.h"

#include "PathCch.h"
#include "pathcch.h"

#pragma comment(lib, "Pathcch.lib")

Expand Down Expand Up @@ -1295,26 +1295,25 @@ os_readlinkat(os_file_handle handle, const char *path, char *buf,

if (wbufsize >= 4 && wbuf[0] == L'\\' && wbuf[1] == L'?'
&& wbuf[2] == L'?' && wbuf[3] == L'\\') {
// Starts with \??\
// Starts with \??\ prefix
if (wbufsize >= 6
&& ((wbuf[4] >= L'A' && wbuf[4] <= L'Z')
|| (wbuf[4] >= L'a' && wbuf[4] <= L'z'))
&& wbuf[5] == L':' && (wbufsize == 6 || wbuf[6] == L'\\'))
{
// \??\<drive>:\
wbuf += 4;
wbufsize -= 4;
}
else if (wbufsize >= 8 && (wbuf[4] == L'U' || wbuf[4] == L'u')
&& (wbuf[5] == L'N' || wbuf[5] == L'n')
&& (wbuf[6] == L'C' || wbuf[6] == L'c')
&& wbuf[7] == L'\\')
{
// \??\UNC\<server>\<share>\ - make sure the final path looks like \\<server>\<share>\
wbuf += 6;
wbuf[0] = L'\\';
wbufsize -= 6;
}
&& wbuf[5] == L':' && (wbufsize == 6 || wbuf[6] == L'\\')) {
// \??\<drive>:\ form
wbuf += 4;
wbufsize -= 4;
}
else if (wbufsize >= 8 && (wbuf[4] == L'U' || wbuf[4] == L'u')
&& (wbuf[5] == L'N' || wbuf[5] == L'n')
&& (wbuf[6] == L'C' || wbuf[6] == L'c')
&& wbuf[7] == L'\\') {
// \??\UNC\<server>\<share>\ - make sure the final path looks
// like \\<server>\<share>\ afterwards
wbuf += 6;
wbuf[0] = L'\\';
wbufsize -= 6;
}
}
}
else if (reparse_data->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) {
Expand Down
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