diff options
Diffstat (limited to 'app/nginx/src/mail/ngx_mail_smtp_handler.c')
| -rw-r--r-- | app/nginx/src/mail/ngx_mail_smtp_handler.c | 872 |
1 files changed, 0 insertions, 872 deletions
diff --git a/app/nginx/src/mail/ngx_mail_smtp_handler.c b/app/nginx/src/mail/ngx_mail_smtp_handler.c deleted file mode 100644 index 939fb1a..0000000 --- a/app/nginx/src/mail/ngx_mail_smtp_handler.c +++ /dev/null @@ -1,872 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_smtp_module.h> - - -static void ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx); -static void ngx_mail_smtp_resolve_name(ngx_event_t *rev); -static void ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx); -static void ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c); -static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev); -static ngx_int_t ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, - ngx_connection_t *c); - -static ngx_int_t ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_starttls(ngx_mail_session_t *s, - ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c); - -static ngx_int_t ngx_mail_smtp_discard_command(ngx_mail_session_t *s, - ngx_connection_t *c, char *err); -static void ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, - ngx_connection_t *c, char *err); - - -static u_char smtp_ok[] = "250 2.0.0 OK" CRLF; -static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF; -static u_char smtp_starttls[] = "220 2.0.0 Start TLS" CRLF; -static u_char smtp_next[] = "334 " CRLF; -static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF; -static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF; -static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF; -static u_char smtp_invalid_pipelining[] = - "503 5.5.0 Improper use of SMTP command pipelining" CRLF; -static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF; -static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF; -static u_char smtp_bad_sequence[] = "503 5.5.1 Bad sequence of commands" CRLF; - - -static ngx_str_t smtp_unavailable = ngx_string("[UNAVAILABLE]"); -static ngx_str_t smtp_tempunavail = ngx_string("[TEMPUNAVAIL]"); - - -void -ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_resolver_ctx_t *ctx; - ngx_mail_core_srv_conf_t *cscf; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (cscf->resolver == NULL) { - s->host = smtp_unavailable; - ngx_mail_smtp_greeting(s, c); - return; - } - -#if (NGX_HAVE_UNIX_DOMAIN) - if (c->sockaddr->sa_family == AF_UNIX) { - s->host = smtp_tempunavail; - ngx_mail_smtp_greeting(s, c); - return; - } -#endif - - c->log->action = "in resolving client address"; - - ctx = ngx_resolve_start(cscf->resolver, NULL); - if (ctx == NULL) { - ngx_mail_close_connection(c); - return; - } - - ctx->addr.sockaddr = c->sockaddr; - ctx->addr.socklen = c->socklen; - ctx->handler = ngx_mail_smtp_resolve_addr_handler; - ctx->data = s; - ctx->timeout = cscf->resolver_timeout; - - if (ngx_resolve_addr(ctx) != NGX_OK) { - ngx_mail_close_connection(c); - } -} - - -static void -ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - s = ctx->data; - c = s->connection; - - if (ctx->state) { - ngx_log_error(NGX_LOG_ERR, c->log, 0, - "%V could not be resolved (%i: %s)", - &c->addr_text, ctx->state, - ngx_resolver_strerror(ctx->state)); - - if (ctx->state == NGX_RESOLVE_NXDOMAIN) { - s->host = smtp_unavailable; - - } else { - s->host = smtp_tempunavail; - } - - ngx_resolve_addr_done(ctx); - - ngx_mail_smtp_greeting(s, s->connection); - - return; - } - - c->log->action = "in resolving client hostname"; - - s->host.data = ngx_pstrdup(c->pool, &ctx->name); - if (s->host.data == NULL) { - ngx_resolve_addr_done(ctx); - ngx_mail_close_connection(c); - return; - } - - s->host.len = ctx->name.len; - - ngx_resolve_addr_done(ctx); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "address resolved: %V", &s->host); - - c->read->handler = ngx_mail_smtp_resolve_name; - - ngx_post_event(c->read, &ngx_posted_events); -} - - -static void -ngx_mail_smtp_resolve_name(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_resolver_ctx_t *ctx; - ngx_mail_core_srv_conf_t *cscf; - - c = rev->data; - s = c->data; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ctx = ngx_resolve_start(cscf->resolver, NULL); - if (ctx == NULL) { - ngx_mail_close_connection(c); - return; - } - - ctx->name = s->host; - ctx->handler = ngx_mail_smtp_resolve_name_handler; - ctx->data = s; - ctx->timeout = cscf->resolver_timeout; - - if (ngx_resolve_name(ctx) != NGX_OK) { - ngx_mail_close_connection(c); - } -} - - -static void -ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx) -{ - ngx_uint_t i; - ngx_connection_t *c; - ngx_mail_session_t *s; - - s = ctx->data; - c = s->connection; - - if (ctx->state) { - ngx_log_error(NGX_LOG_ERR, c->log, 0, - "\"%V\" could not be resolved (%i: %s)", - &ctx->name, ctx->state, - ngx_resolver_strerror(ctx->state)); - - if (ctx->state == NGX_RESOLVE_NXDOMAIN) { - s->host = smtp_unavailable; - - } else { - s->host = smtp_tempunavail; - } - - } else { - -#if (NGX_DEBUG) - { - u_char text[NGX_SOCKADDR_STRLEN]; - ngx_str_t addr; - - addr.data = text; - - for (i = 0; i < ctx->naddrs; i++) { - addr.len = ngx_sock_ntop(ctx->addrs[i].sockaddr, - ctx->addrs[i].socklen, - text, NGX_SOCKADDR_STRLEN, 0); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "name was resolved to %V", &addr); - } - } -#endif - - for (i = 0; i < ctx->naddrs; i++) { - if (ngx_cmp_sockaddr(ctx->addrs[i].sockaddr, ctx->addrs[i].socklen, - c->sockaddr, c->socklen, 0) - == NGX_OK) - { - goto found; - } - } - - s->host = smtp_unavailable; - } - -found: - - ngx_resolve_name_done(ctx); - - ngx_mail_smtp_greeting(s, c); -} - - -static void -ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_msec_t timeout; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp greeting for \"%V\"", &s->host); - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - timeout = sscf->greeting_delay ? sscf->greeting_delay : cscf->timeout; - ngx_add_timer(c->read, timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - if (sscf->greeting_delay) { - c->read->handler = ngx_mail_smtp_invalid_pipelining; - return; - } - - c->read->handler = ngx_mail_smtp_init_protocol; - - s->out = sscf->greeting; - - ngx_mail_send(c->write); -} - - -static void -ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - - c = rev->data; - s = c->data; - - c->log->action = "in delay pipelining state"; - - if (rev->timedout) { - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "delay greeting"); - - rev->timedout = 0; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - c->read->handler = ngx_mail_smtp_init_protocol; - - ngx_add_timer(c->read, cscf->timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - return; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - s->out = sscf->greeting; - - } else { - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "invalid pipelining"); - - if (s->buffer == NULL) { - if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { - return; - } - } - - if (ngx_mail_smtp_discard_command(s, c, - "client was rejected before greeting: \"%V\"") - != NGX_OK) - { - return; - } - - ngx_str_set(&s->out, smtp_invalid_pipelining); - s->quit = 1; - } - - ngx_mail_send(c->write); -} - - -void -ngx_mail_smtp_init_protocol(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - - c->log->action = "in auth state"; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - s = c->data; - - if (s->buffer == NULL) { - if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { - return; - } - } - - s->mail_state = ngx_smtp_start; - c->read->handler = ngx_mail_smtp_auth_state; - - ngx_mail_smtp_auth_state(rev); -} - - -static ngx_int_t -ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_mail_smtp_srv_conf_t *sscf; - - if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) == NGX_ERROR) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - s->buffer = ngx_create_temp_buf(c->pool, sscf->client_buffer_size); - if (s->buffer == NULL) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - return NGX_OK; -} - - -void -ngx_mail_smtp_auth_state(ngx_event_t *rev) -{ - ngx_int_t rc; - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - s = c->data; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state"); - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - if (s->out.len) { - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy"); - s->blocked = 1; - return; - } - - s->blocked = 0; - - rc = ngx_mail_read_command(s, c); - - if (rc == NGX_AGAIN || rc == NGX_ERROR) { - return; - } - - ngx_str_set(&s->out, smtp_ok); - - if (rc == NGX_OK) { - switch (s->mail_state) { - - case ngx_smtp_start: - - switch (s->command) { - - case NGX_SMTP_HELO: - case NGX_SMTP_EHLO: - rc = ngx_mail_smtp_helo(s, c); - break; - - case NGX_SMTP_AUTH: - rc = ngx_mail_smtp_auth(s, c); - break; - - case NGX_SMTP_QUIT: - s->quit = 1; - ngx_str_set(&s->out, smtp_bye); - break; - - case NGX_SMTP_MAIL: - rc = ngx_mail_smtp_mail(s, c); - break; - - case NGX_SMTP_RCPT: - rc = ngx_mail_smtp_rcpt(s, c); - break; - - case NGX_SMTP_RSET: - rc = ngx_mail_smtp_rset(s, c); - break; - - case NGX_SMTP_NOOP: - break; - - case NGX_SMTP_STARTTLS: - rc = ngx_mail_smtp_starttls(s, c); - ngx_str_set(&s->out, smtp_starttls); - break; - - default: - rc = NGX_MAIL_PARSE_INVALID_COMMAND; - break; - } - - break; - - case ngx_smtp_auth_login_username: - rc = ngx_mail_auth_login_username(s, c, 0); - - ngx_str_set(&s->out, smtp_password); - s->mail_state = ngx_smtp_auth_login_password; - break; - - case ngx_smtp_auth_login_password: - rc = ngx_mail_auth_login_password(s, c); - break; - - case ngx_smtp_auth_plain: - rc = ngx_mail_auth_plain(s, c, 0); - break; - - case ngx_smtp_auth_cram_md5: - rc = ngx_mail_auth_cram_md5(s, c); - break; - - case ngx_smtp_auth_external: - rc = ngx_mail_auth_external(s, c, 0); - break; - } - } - - if (s->buffer->pos < s->buffer->last) { - s->blocked = 1; - } - - switch (rc) { - - case NGX_DONE: - ngx_mail_auth(s, c); - return; - - case NGX_ERROR: - ngx_mail_session_internal_server_error(s); - return; - - case NGX_MAIL_PARSE_INVALID_COMMAND: - s->mail_state = ngx_smtp_start; - s->state = 0; - ngx_str_set(&s->out, smtp_invalid_command); - - /* fall through */ - - case NGX_OK: - s->args.nelts = 0; - - if (s->buffer->pos == s->buffer->last) { - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - } - - if (s->state) { - s->arg_start = s->buffer->pos; - } - - ngx_mail_send(c->write); - } -} - - -static ngx_int_t -ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - ngx_mail_smtp_srv_conf_t *sscf; - - if (s->args.nelts != 1) { - ngx_str_set(&s->out, smtp_invalid_argument); - s->state = 0; - return NGX_OK; - } - - arg = s->args.elts; - - s->smtp_helo.len = arg[0].len; - - s->smtp_helo.data = ngx_pnalloc(c->pool, arg[0].len); - if (s->smtp_helo.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len); - - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - if (s->command == NGX_SMTP_HELO) { - s->out = sscf->server_name; - - } else { - s->esmtp = 1; - -#if (NGX_MAIL_SSL) - - if (c->ssl == NULL) { - ngx_mail_ssl_conf_t *sslcf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { - s->out = sscf->starttls_capability; - return NGX_OK; - } - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { - s->out = sscf->starttls_only_capability; - return NGX_OK; - } - } -#endif - - s->out = sscf->capability; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_int_t rc; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - s->state = 0; - return NGX_OK; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - rc = ngx_mail_auth_parse(s, c); - - switch (rc) { - - case NGX_MAIL_AUTH_LOGIN: - - ngx_str_set(&s->out, smtp_username); - s->mail_state = ngx_smtp_auth_login_username; - - return NGX_OK; - - case NGX_MAIL_AUTH_LOGIN_USERNAME: - - ngx_str_set(&s->out, smtp_password); - s->mail_state = ngx_smtp_auth_login_password; - - return ngx_mail_auth_login_username(s, c, 1); - - case NGX_MAIL_AUTH_PLAIN: - - ngx_str_set(&s->out, smtp_next); - s->mail_state = ngx_smtp_auth_plain; - - return NGX_OK; - - case NGX_MAIL_AUTH_CRAM_MD5: - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (s->salt.data == NULL) { - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (ngx_mail_salt(s, c, cscf) != NGX_OK) { - return NGX_ERROR; - } - } - - if (ngx_mail_auth_cram_md5_salt(s, c, "334 ", 4) == NGX_OK) { - s->mail_state = ngx_smtp_auth_cram_md5; - return NGX_OK; - } - - return NGX_ERROR; - - case NGX_MAIL_AUTH_EXTERNAL: - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_str_set(&s->out, smtp_username); - s->mail_state = ngx_smtp_auth_external; - - return NGX_OK; - } - - return rc; -} - - -static ngx_int_t -ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg, cmd; - ngx_mail_smtp_srv_conf_t *sscf; - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_NONE_ENABLED)) { - ngx_mail_smtp_log_rejected_command(s, c, "client was rejected: \"%V\""); - ngx_str_set(&s->out, smtp_auth_required); - return NGX_OK; - } - - /* auth none */ - - if (s->smtp_from.len) { - ngx_str_set(&s->out, smtp_bad_sequence); - return NGX_OK; - } - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - return NGX_OK; - } - - arg = s->args.elts; - arg += s->args.nelts - 1; - - cmd.len = arg->data + arg->len - s->cmd.data; - cmd.data = s->cmd.data; - - s->smtp_from.len = cmd.len; - - s->smtp_from.data = ngx_pnalloc(c->pool, cmd.len); - if (s->smtp_from.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_from.data, cmd.data, cmd.len); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp mail from:\"%V\"", &s->smtp_from); - - ngx_str_set(&s->out, smtp_ok); - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg, cmd; - - if (s->smtp_from.len == 0) { - ngx_str_set(&s->out, smtp_bad_sequence); - return NGX_OK; - } - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - return NGX_OK; - } - - arg = s->args.elts; - arg += s->args.nelts - 1; - - cmd.len = arg->data + arg->len - s->cmd.data; - cmd.data = s->cmd.data; - - s->smtp_to.len = cmd.len; - - s->smtp_to.data = ngx_pnalloc(c->pool, cmd.len); - if (s->smtp_to.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_to.data, cmd.data, cmd.len); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp rcpt to:\"%V\"", &s->smtp_to); - - s->auth_method = NGX_MAIL_AUTH_NONE; - - return NGX_DONE; -} - - -static ngx_int_t -ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - ngx_str_set(&s->out, smtp_ok); - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_starttls(ngx_mail_session_t *s, ngx_connection_t *c) -{ -#if (NGX_MAIL_SSL) - ngx_mail_ssl_conf_t *sslcf; - - if (c->ssl == NULL) { - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - if (sslcf->starttls) { - - /* - * RFC3207 requires us to discard any knowledge - * obtained from client before STARTTLS. - */ - - ngx_str_null(&s->smtp_helo); - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - - c->read->handler = ngx_mail_starttls_handler; - return NGX_OK; - } - } - -#endif - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -static ngx_int_t -ngx_mail_smtp_discard_command(ngx_mail_session_t *s, ngx_connection_t *c, - char *err) -{ - ssize_t n; - - n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); - - if (n == NGX_ERROR || n == 0) { - ngx_mail_close_connection(c); - return NGX_ERROR; - } - - if (n > 0) { - s->buffer->last += n; - } - - if (n == NGX_AGAIN) { - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - return NGX_AGAIN; - } - - ngx_mail_smtp_log_rejected_command(s, c, err); - - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - - return NGX_OK; -} - - -static void -ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, ngx_connection_t *c, - char *err) -{ - u_char ch; - ngx_str_t cmd; - ngx_uint_t i; - - if (c->log->log_level < NGX_LOG_INFO) { - return; - } - - cmd.len = s->buffer->last - s->buffer->start; - cmd.data = s->buffer->start; - - for (i = 0; i < cmd.len; i++) { - ch = cmd.data[i]; - - if (ch != CR && ch != LF) { - continue; - } - - cmd.data[i] = '_'; - } - - cmd.len = i; - - ngx_log_error(NGX_LOG_INFO, c->log, 0, err, &cmd); -} |