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ac72bd17d1
*) Feature: the "wait" parameter in the "include" SSI command.
*) Feature: the Ukrainian and Byelorussian characters were added to
koi-win conversion table.
*) Bugfix: in the SSI.
137 lines
3.1 KiB
C
137 lines
3.1 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <ngx_mysql.h>
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/* the library supports the subset of the MySQL 4.1+ protocol (version 10) */
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ngx_int_t
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ngx_mysql_connect(ngx_mysql_t *m)
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{
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ngx_int_t rc;
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#if 0
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if (cached) {
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return NGX_OK;
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}
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#endif
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m->peer.log->action = "connecting to mysql server";
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rc = ngx_event_connect_peer(&m->peer);
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if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
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return rc;
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}
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m->peer.connection->read->handler = ngx_mysql_read_server_greeting;
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m->peer.connection->write->handler = ngx_mysql_emtpy_handler;
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ngx_add_timer(m->peer.connection->read, /* STUB */ 5000);
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ngx_add_timer(m->peer.connection->write, /* STUB */ 5000);
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return NGX_OK;
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}
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static void
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ngx_mysql_read_server_greeting(ngx_event_t *rev)
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{
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size_t len;
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u_char *p, *t;
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ngx_mysql_t *m;
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ngx_connection_t *c;
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c = rev->data;
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m = c->data;
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if (rev->timedout) {
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ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
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"mysql server %V timed out",
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&ctx->peer.peers->peer[0].name);
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ngx_mysql_close(m, NGX_ERROR);
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return;
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}
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if (m->buf == NULL) {
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m->peer.log->action = "reading to mysql server greeting";
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m->buf = ngx_create_temp(m->pool, /* STUB */ 1024);
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if (m->buf == NULL) {
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ngx_mysql_close(m, NGX_ERROR);
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return;
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}
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}
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n = ngx_recv(m->peer.connection, m->buf->pos, /* STUB */ 1024);
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if (n == NGX_AGAIN) {
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return;
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}
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if (n < 5) {
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ngx_mysql_close(m, NGX_ERROR);
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return;
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}
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p = m->buf->pos;
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if (ngx_m24toh(p) > n - 4) {
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ngx_log_error(NGX_LOG_ERR, rev->log, 0,
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"mysql server %V sent incomplete greeting packet",
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&ctx->peer.peers->peer[0].name);
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ngx_mysql_close(m, NGX_ERROR);
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return;
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}
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if (p[4]) < 10) {
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ngx_log_error(NGX_LOG_ERR, rev->log, 0,
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"mysql server %V sent unsupported protocol version %ud",
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&ctx->peer.peers->peer[0].name, p[4]);
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ngx_mysql_close(m, NGX_ERROR);
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return;
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}
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len = ngx_strlen(&p[5]);
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t = p + 5 + len + 1;
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capacity = ngx_m16toh((&t[4 + 9]));
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ngx_log_debug8(NGX_LOG_DEBUG_MYSQL, rev->log, 0,
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"mysql version: %ud, \"%s\", thread: %ud, salt: \"%s\", ",
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"capacity: %Xd, charset: %ud, status: %ud, salt rest \"%s\"",
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p[4], &p[5], ngx_m32toh(t), &t[4],
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capacity, t[4 + 9 + 2],
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ngx_m16toh((&t[4 + 9 + 2 + 1])),
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t[4 + 9 + 2 + 1 + 2 + 13]);
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capacity &= NGX_MYSQL_LONG_PASSWORD
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| NGX_MYSQL_CONNECT_WITH_DB
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| NGX_MYSQL_PROTOCOL_41;
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}
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static void
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ngx_mysql_close(ngx_mysql_t *m, ngx_int_t rc)
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{
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if (rc == NGX_ERROR) {
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ngx_close_connection(m->peer.connection);
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}
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m->state = rc;
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m->handler(m);
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}
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