mirror of
https://github.com/postgres/postgres.git
synced 2025-07-21 16:02:15 +03:00
e86f2a0529
If logging is enabled, either ereport() or fprintf() might stomp on errno internally, causing this function to return the wrong result. That might only end in a misleading error report, but in any code that's examining errno to decide what to do next, the consequences could be far graver. This has been broken since the very first version of this file in 2006 ... it's a bit astonishing that we didn't identify this long ago. Reported by Amit Kapila, though this isn't his proposed fix.
207 lines
2.9 KiB
C
207 lines
2.9 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* win32error.c
|
|
* Map win32 error codes to errno values
|
|
*
|
|
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
|
|
*
|
|
* IDENTIFICATION
|
|
* src/port/win32error.c
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef FRONTEND
|
|
#include "postgres.h"
|
|
#else
|
|
#include "postgres_fe.h"
|
|
#endif
|
|
|
|
static const struct
|
|
{
|
|
DWORD winerr;
|
|
int doserr;
|
|
} doserrors[] =
|
|
|
|
{
|
|
{
|
|
ERROR_INVALID_FUNCTION, EINVAL
|
|
},
|
|
{
|
|
ERROR_FILE_NOT_FOUND, ENOENT
|
|
},
|
|
{
|
|
ERROR_PATH_NOT_FOUND, ENOENT
|
|
},
|
|
{
|
|
ERROR_TOO_MANY_OPEN_FILES, EMFILE
|
|
},
|
|
{
|
|
ERROR_ACCESS_DENIED, EACCES
|
|
},
|
|
{
|
|
ERROR_INVALID_HANDLE, EBADF
|
|
},
|
|
{
|
|
ERROR_ARENA_TRASHED, ENOMEM
|
|
},
|
|
{
|
|
ERROR_NOT_ENOUGH_MEMORY, ENOMEM
|
|
},
|
|
{
|
|
ERROR_INVALID_BLOCK, ENOMEM
|
|
},
|
|
{
|
|
ERROR_BAD_ENVIRONMENT, E2BIG
|
|
},
|
|
{
|
|
ERROR_BAD_FORMAT, ENOEXEC
|
|
},
|
|
{
|
|
ERROR_INVALID_ACCESS, EINVAL
|
|
},
|
|
{
|
|
ERROR_INVALID_DATA, EINVAL
|
|
},
|
|
{
|
|
ERROR_INVALID_DRIVE, ENOENT
|
|
},
|
|
{
|
|
ERROR_CURRENT_DIRECTORY, EACCES
|
|
},
|
|
{
|
|
ERROR_NOT_SAME_DEVICE, EXDEV
|
|
},
|
|
{
|
|
ERROR_NO_MORE_FILES, ENOENT
|
|
},
|
|
{
|
|
ERROR_LOCK_VIOLATION, EACCES
|
|
},
|
|
{
|
|
ERROR_SHARING_VIOLATION, EACCES
|
|
},
|
|
{
|
|
ERROR_BAD_NETPATH, ENOENT
|
|
},
|
|
{
|
|
ERROR_NETWORK_ACCESS_DENIED, EACCES
|
|
},
|
|
{
|
|
ERROR_BAD_NET_NAME, ENOENT
|
|
},
|
|
{
|
|
ERROR_FILE_EXISTS, EEXIST
|
|
},
|
|
{
|
|
ERROR_CANNOT_MAKE, EACCES
|
|
},
|
|
{
|
|
ERROR_FAIL_I24, EACCES
|
|
},
|
|
{
|
|
ERROR_INVALID_PARAMETER, EINVAL
|
|
},
|
|
{
|
|
ERROR_NO_PROC_SLOTS, EAGAIN
|
|
},
|
|
{
|
|
ERROR_DRIVE_LOCKED, EACCES
|
|
},
|
|
{
|
|
ERROR_BROKEN_PIPE, EPIPE
|
|
},
|
|
{
|
|
ERROR_DISK_FULL, ENOSPC
|
|
},
|
|
{
|
|
ERROR_INVALID_TARGET_HANDLE, EBADF
|
|
},
|
|
{
|
|
ERROR_INVALID_HANDLE, EINVAL
|
|
},
|
|
{
|
|
ERROR_WAIT_NO_CHILDREN, ECHILD
|
|
},
|
|
{
|
|
ERROR_CHILD_NOT_COMPLETE, ECHILD
|
|
},
|
|
{
|
|
ERROR_DIRECT_ACCESS_HANDLE, EBADF
|
|
},
|
|
{
|
|
ERROR_NEGATIVE_SEEK, EINVAL
|
|
},
|
|
{
|
|
ERROR_SEEK_ON_DEVICE, EACCES
|
|
},
|
|
{
|
|
ERROR_DIR_NOT_EMPTY, ENOTEMPTY
|
|
},
|
|
{
|
|
ERROR_NOT_LOCKED, EACCES
|
|
},
|
|
{
|
|
ERROR_BAD_PATHNAME, ENOENT
|
|
},
|
|
{
|
|
ERROR_MAX_THRDS_REACHED, EAGAIN
|
|
},
|
|
{
|
|
ERROR_LOCK_FAILED, EACCES
|
|
},
|
|
{
|
|
ERROR_ALREADY_EXISTS, EEXIST
|
|
},
|
|
{
|
|
ERROR_FILENAME_EXCED_RANGE, ENOENT
|
|
},
|
|
{
|
|
ERROR_NESTING_NOT_ALLOWED, EAGAIN
|
|
},
|
|
{
|
|
ERROR_NOT_ENOUGH_QUOTA, ENOMEM
|
|
}
|
|
};
|
|
|
|
void
|
|
_dosmaperr(unsigned long e)
|
|
{
|
|
int i;
|
|
|
|
if (e == 0)
|
|
{
|
|
errno = 0;
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < lengthof(doserrors); i++)
|
|
{
|
|
if (doserrors[i].winerr == e)
|
|
{
|
|
int doserr = doserrors[i].doserr;
|
|
|
|
#ifndef FRONTEND
|
|
ereport(DEBUG5,
|
|
(errmsg_internal("mapped win32 error code %lu to %d",
|
|
e, doserr)));
|
|
#elif FRONTEND_DEBUG
|
|
fprintf(stderr, _("mapped win32 error code %lu to %d"), e, doserr);
|
|
#endif
|
|
errno = doserr;
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifndef FRONTEND
|
|
ereport(LOG,
|
|
(errmsg_internal("unrecognized win32 error code: %lu",
|
|
e)));
|
|
#else
|
|
fprintf(stderr, _("unrecognized win32 error code: %lu"), e);
|
|
#endif
|
|
|
|
errno = EINVAL;
|
|
return;
|
|
}
|