u_char *
ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err)
{
if (buf > last - 50) {
/* leave a space for an error code */
buf = last - 50;
*buf++ = '.';
*buf++ = '.';
*buf++ = '.';
}
#if (NGX_WIN32)
buf = ngx_slprintf(buf, last, ((unsigned) err < 0x80000000)
? " (%d: " : " (%Xd: ", err);
#else
buf = ngx_slprintf(buf, last, " (%d: ", err);
#endif
buf = ngx_strerror_r(err, buf, last - buf);
if (buf < last) {
*buf++ = ')';
}
return buf;
}
void ngx_cdecl
ngx_conf_log_error(ngx_uint_t level, ngx_conf_t *cf, ngx_err_t err,
char *fmt, ...)
{
u_char errstr[NGX_MAX_CONF_ERRSTR], *buf, *last;
va_list args;
last = errstr + NGX_MAX_CONF_ERRSTR;
va_start(args, fmt);
buf = ngx_vsnprintf(errstr, last - errstr, fmt, args);
va_end(args);
*buf = '\0';
if (err) {
buf = ngx_snprintf(buf, last - buf - 1, " (%d: ", err);
buf = ngx_strerror_r(err, buf, last - buf - 1);
*buf++ = ')';
*buf = '\0';
}
if (cf->conf_file == NULL) {
ngx_log_error(level, cf->log, 0, "%s", errstr);
return;
}
ngx_log_error(level, cf->log, 0, "%s in %s:%ui",
errstr, cf->conf_file->file.name.data, cf->conf_file->line);
}
static int
ngx_http_lua_socket_error_retval_handler(ngx_http_request_t *r,
ngx_http_lua_socket_udp_upstream_t *u, lua_State *L)
{
u_char errstr[NGX_MAX_ERROR_STR];
u_char *p;
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"lua udp socket error retval handler");
if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_RESOLVER) {
return 2;
}
lua_pushnil(L);
if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_PARTIALWRITE) {
lua_pushliteral(L, "partial write");
} else if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_TIMEOUT) {
lua_pushliteral(L, "timeout");
} else if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_CLOSED) {
lua_pushliteral(L, "closed");
} else if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_BUFTOOSMALL) {
lua_pushliteral(L, "buffer too small");
} else if (u->ft_type & NGX_HTTP_LUA_SOCKET_FT_NOMEM) {
lua_pushliteral(L, "out of memory");
} else {
if (u->socket_errno) {
#if (nginx_version >= 1000000)
p = ngx_strerror(u->socket_errno, errstr, sizeof(errstr));
#else
p = ngx_strerror_r(u->socket_errno, errstr, sizeof(errstr));
#endif
/* for compatibility with LuaSocket */
ngx_strlow(errstr, errstr, p - errstr);
lua_pushlstring(L, (char *) errstr, p - errstr);
} else {
lua_pushliteral(L, "error");
}
}
return 2;
}
void ngx_conf_log_error(ngx_uint_t level, ngx_conf_t *cf, ngx_err_t err,
char *fmt, ...)
{
int len;
char errstr[NGX_MAX_CONF_ERRSTR];
va_list args;
va_start(args, fmt);
len = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
va_end(args);
if (err) {
len += ngx_snprintf(errstr + len, sizeof(errstr) - len - 1,
" (%d: ", err);
len += ngx_strerror_r(err, errstr + len, sizeof(errstr) - len - 1);
errstr[len++] = ')';
errstr[len] = '\0';
}
ngx_log_error(level, cf->log, 0, "%s in %s:%d",
errstr, cf->conf_file->file.name.data, cf->conf_file->line);
}
void
ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
const char *fmt, va_list args)
#endif
{
#if (NGX_HAVE_VARIADIC_MACROS)
va_list args;
#endif
u_char errstr[NGX_MAX_ERROR_STR], *p, *last;
if (log->file->fd == NGX_INVALID_FILE) {
return;
}
last = errstr + NGX_MAX_ERROR_STR;
ngx_memcpy(errstr, ngx_cached_err_log_time.data,
ngx_cached_err_log_time.len);
p = errstr + ngx_cached_err_log_time.len;
p = ngx_snprintf(p, last - p, " [%s] ", err_levels[level]);
/* pid#tid */
p = ngx_snprintf(p, last - p, "%P#" NGX_TID_T_FMT ": ",
ngx_log_pid, ngx_log_tid);
if (log->connection) {
p = ngx_snprintf(p, last - p, "*%uA ", log->connection);
}
#if (NGX_HAVE_VARIADIC_MACROS)
va_start(args, fmt);
p = ngx_vsnprintf(p, last - p, fmt, args);
va_end(args);
#else
p = ngx_vsnprintf(p, last - p, fmt, args);
#endif
if (err) {
if (p > last - 50) {
/* leave a space for an error code */
p = last - 50;
*p++ = '.';
*p++ = '.';
*p++ = '.';
}
#if (NGX_WIN32)
if ((unsigned) err >= 0x80000000) {
p = ngx_snprintf(p, last - p, " (%Xd: ", err);
} else {
p = ngx_snprintf(p, last - p, " (%d: ", err);
}
#else
p = ngx_snprintf(p, last - p, " (%d: ", err);
#endif
p = ngx_strerror_r(err, p, last - p);
if (p < last) {
*p++ = ')';
}
}
if (level != NGX_LOG_DEBUG && log->handler) {
p = log->handler(log, p, last - p);
}
if (p > last - NGX_LINEFEED_SIZE) {
p = last - NGX_LINEFEED_SIZE;
}
ngx_linefeed(p);
(void) ngx_write_fd(log->file->fd, errstr, p - errstr);
}