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/*
* Copyright (C) Igor Sysoev
*/
/*
* TODO:
* add WSA error messages for NT and 98
* test for English only messages
*/
#include <ngx_config.h>
#include <ngx_core.h>
static ngx_str_t wsa_errors[] = {
ngx_string("An invalid argument was supplied"), /* WSAEINVAL 10022 */
ngx_string("Too many open sockets"), /* WSAEMFILE 10023 */
ngx_null_string, /* 10024 */
ngx_null_string, /* 10025 */
ngx_null_string, /* 10026 */
ngx_null_string, /* 10027 */
ngx_null_string, /* 10028 */
ngx_null_string, /* 10029 */
ngx_null_string, /* 10030 */
ngx_null_string, /* 10031 */
ngx_null_string, /* 10032 */
ngx_null_string, /* 10033 */
ngx_null_string, /* 10034 */
/* WSAEWOULDBLOCK 10035 */
ngx_string("A non-blocking socket operation could not be completed "
"immediately"),
ngx_null_string, /* 10036 */
ngx_null_string, /* 10037 */
/* WSAENOTSOCK 10038 */
ngx_string("An operation was attempted on something that is not a socket"),
ngx_null_string, /* 10039 */
ngx_null_string, /* 10040 */
ngx_null_string, /* 10041 */
/* WSAENOPROTOOPT 10042 */
ngx_string("An unknown, invalid, or unsupported option or level was "
"specified in a getsockopt or setsockopt call"),
ngx_null_string, /* 10043 */
ngx_null_string, /* 10044 */
ngx_null_string, /* 10045 */
ngx_null_string, /* 10046 */
ngx_null_string, /* 10047 */
ngx_null_string, /* 10048 */
ngx_null_string, /* 10049 */
ngx_null_string, /* 10050 */
ngx_null_string, /* 10051 */
ngx_null_string, /* 10052 */
ngx_null_string, /* 10053 */
/* WSAECONNRESET 10054 */
ngx_string("An existing connection was forcibly closed by the remote host"),
/* WSAENOBUFS 10055 */
ngx_string("An operation on a socket could not be performed because "
"the system lacked sufficient buffer space or "
"because a queue was full"),
/* WSAEISCONN 10056 */
ngx_string("A connect request was made on an already connected socket"),
/* WSAENOTCONN 10057 */
ngx_string("A request to send or receive data was disallowed because"
"the socket is not connected and (when sending on a datagram "
"socket using a sendto call) no address was supplied"),
ngx_null_string, /* 10058 */
ngx_null_string, /* 10059 */
/* WSAETIMEDOUT 10060 */
ngx_string("A connection attempt failed because the connected party "
"did not properly respond after a period of time, "
"or established connection failed because connected host "
"has failed to respond"),
/* WSAECONNREFUSED 10061 */
ngx_string("No connection could be made because the target machine "
"actively refused it")
};
u_char *ngx_strerror_r(ngx_err_t err, u_char *errstr, size_t size)
{
int n;
u_int len;
ngx_err_t format_error;
if (size == 0) {
return errstr;
}
len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
|FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, err,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(char *) errstr, size, NULL);
if (len == 0) {
format_error = GetLastError();
if (format_error == ERROR_MR_MID_NOT_FOUND) {
n = err - WSAEINVAL;
if (n >= 0 && n <= WSAECONNREFUSED - WSAEINVAL) {
len = wsa_errors[n].len;
if (len) {
if (len > size) {
len = size;
}
ngx_memcpy(errstr, wsa_errors[n].data, len);
return errstr + len;
}
}
}
return ngx_snprintf(errstr, size,
"FormatMessage() error:(%d)", format_error);
}
/* remove ".\r\n\0" */
while (errstr[len] == '\0' || errstr[len] == CR
|| errstr[len] == LF || errstr[len] == '.')
{
--len;
}
return &errstr[++len];
}
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