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Commitfa248a0

Browse files
author
Michael Paquier
committed
Remove custom version of readlink in pgut_port
Postgres has its own version in lpgport relying on junction points,so if we consider a WIN32 port this is actually not necessary.
1 parent1ae2feb commitfa248a0

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2 files changed

+0
-125
lines changed

2 files changed

+0
-125
lines changed

‎pgut/pgut-port.c

Lines changed: 0 additions & 111 deletions
Original file line numberDiff line numberDiff line change
@@ -15,117 +15,6 @@
1515
#include<unistd.h>
1616
#include<fcntl.h>
1717

18-
#ifdefWIN32
19-
20-
#include<winioctl.h>
21-
22-
#defineREPARSE_DATA_SIZE1024
23-
24-
/* same layout as REPARSE_DATA_BUFFER, which is defined only in old winnt.h */
25-
typedefstructREPARSE_DATA
26-
{
27-
ULONGReparseTag;
28-
WORDReparseDataLength;
29-
WORDReserved;
30-
union
31-
{
32-
struct
33-
{
34-
WORDSubstituteNameOffset;
35-
WORDSubstituteNameLength;
36-
WORDPrintNameOffset;
37-
WORDPrintNameLength;
38-
ULONGFlags;
39-
WCHARPathBuffer[1];
40-
}Symlink;
41-
struct
42-
{
43-
WORDSubstituteNameOffset;
44-
WORDSubstituteNameLength;
45-
WORDPrintNameOffset;
46-
WORDPrintNameLength;
47-
WCHARPathBuffer[1];
48-
}Mount;
49-
struct
50-
{
51-
BYTEDataBuffer[REPARSE_DATA_SIZE];
52-
}Generic;
53-
};
54-
}REPARSE_DATA;
55-
56-
ssize_t
57-
readlink(constchar*path,char*target,size_tsize)
58-
{
59-
HANDLEhandle;
60-
DWORDattr;
61-
REPARSE_DATAdata;
62-
DWORDdatasize;
63-
PCWSTRwpath;
64-
intwlen;
65-
intr;
66-
67-
attr=GetFileAttributes(path);
68-
if (attr==INVALID_FILE_ATTRIBUTES)
69-
{
70-
_dosmaperr(GetLastError());
71-
return-1;
72-
}
73-
if ((attr&FILE_ATTRIBUTE_REPARSE_POINT)==0)
74-
{
75-
errno=EINVAL;/* not a symlink */
76-
return-1;
77-
}
78-
79-
handle=CreateFileA(path,0,
80-
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,NULL,
81-
OPEN_EXISTING,
82-
FILE_FLAG_BACKUP_SEMANTICS |FILE_FLAG_OPEN_REPARSE_POINT,NULL);
83-
if (handle==INVALID_HANDLE_VALUE)
84-
{
85-
_dosmaperr(GetLastError());
86-
return-1;
87-
}
88-
89-
wpath=NULL;
90-
if (DeviceIoControl(handle,FSCTL_GET_REPARSE_POINT,NULL,0,
91-
&data,sizeof(data),&datasize,NULL))
92-
{
93-
switch (data.ReparseTag)
94-
{
95-
caseIO_REPARSE_TAG_MOUNT_POINT:
96-
{
97-
wpath=data.Mount.PathBuffer+data.Mount.SubstituteNameOffset;
98-
wlen=data.Mount.SubstituteNameLength;
99-
break;
100-
}
101-
caseIO_REPARSE_TAG_SYMLINK:
102-
{
103-
wpath=data.Symlink.PathBuffer+data.Symlink.SubstituteNameOffset;
104-
wlen=data.Symlink.SubstituteNameLength;
105-
break;
106-
}
107-
}
108-
}
109-
110-
if (wpath==NULL)
111-
r=-1;
112-
else
113-
{
114-
if (wcsncmp(wpath,L"\\??\\",4)==0||
115-
wcsncmp(wpath,L"\\\\?\\",4)==0)
116-
{
117-
wpath+=4;
118-
wlen-=4;
119-
}
120-
r=WideCharToMultiByte(CP_ACP,0,wpath,wlen,target,size,NULL,NULL);
121-
}
122-
123-
CloseHandle(handle);
124-
returnr;
125-
}
126-
127-
#endif
128-
12918
#ifdefPGUT_FLOCK
13019

13120
#ifdefWIN32

‎pgut/pgut-port.h

Lines changed: 0 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -10,20 +10,6 @@
1010
#ifndefPGUT_PORT_H
1111
#definePGUT_PORT_H
1212

13-
/*
14-
* readlink ports
15-
*/
16-
#ifdefWIN32
17-
18-
#defineS_IFLNK(0)
19-
#defineS_IRWXG(0)
20-
#defineS_IRWXO(0)
21-
#defineS_ISLNK(mode)(0)
22-
23-
externssize_treadlink(constchar*path,char*target,size_tsize);
24-
25-
#endif
26-
2713
/*
2814
* flock ports
2915
*/

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