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/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#include <ngx_config.h>
#include <ngx_core.h>
u_char *
ngx_strerror(ngx_err_t err, u_char *errstr, size_t size)
{
u_int len;
static u_long lang = MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US);
if (size == 0) {
return errstr;
}
len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL, err, lang, (char *) errstr, size, NULL);
if (len == 0 && lang && GetLastError() == ERROR_RESOURCE_LANG_NOT_FOUND) {
/*
* Try to use English messages first and fallback to a language,
* based on locale: non-English Windows have no English messages
* at all. This way allows to use English messages at least on
* Windows with MUI.
*/
lang = 0;
len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL, err, lang, (char *) errstr, size, NULL);
}
if (len == 0) {
return ngx_snprintf(errstr, size,
"FormatMessage() error:(%d)", GetLastError());
}
/* remove ".\r\n\0" */
while (errstr[len] == '\0' || errstr[len] == CR
|| errstr[len] == LF || errstr[len] == '.')
{
--len;
}
return &errstr[++len];
}
ngx_int_t
ngx_strerror_init(void)
{
return NGX_OK;
}
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