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comparison src/mail/ngx_mail_imap_handler.c @ 9235:d7fd0acdea64

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Mail: handling of pipelined commands which cross buffer boundary. Previously, pipelined commands which cross buffer boundary were rejected as too long, even if the command itself was short enough to be handled within the client buffer. Fix is to move non-processed commands to the start of the buffer after the previous command is fully processed.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 30 Mar 2024 05:05:31 +0300
parents c690a902bfec
children
comparison
equal deleted inserted replaced
9234:c690a902bfec 9235:d7fd0acdea64
100 100
101 void 101 void
102 ngx_mail_imap_auth_state(ngx_event_t *rev) 102 ngx_mail_imap_auth_state(ngx_event_t *rev)
103 { 103 {
104 u_char *p; 104 u_char *p;
105 size_t n;
105 ngx_int_t rc; 106 ngx_int_t rc;
106 ngx_uint_t tag; 107 ngx_uint_t tag;
107 ngx_connection_t *c; 108 ngx_connection_t *c;
108 ngx_mail_session_t *s; 109 ngx_mail_session_t *s;
109 110
283 284
284 } else { 285 } else {
285 if (s->buffer->pos == s->buffer->last) { 286 if (s->buffer->pos == s->buffer->last) {
286 s->buffer->pos = s->buffer->start; 287 s->buffer->pos = s->buffer->start;
287 s->buffer->last = s->buffer->start; 288 s->buffer->last = s->buffer->start;
289
290 } else {
291 n = s->buffer->last - s->buffer->pos;
292 ngx_memmove(s->buffer->start, s->buffer->pos, n);
293 s->buffer->pos = s->buffer->start;
294 s->buffer->last = s->buffer->start + n;
288 } 295 }
289 296
290 s->tag.len = 0; 297 s->tag.len = 0;
291 } 298 }
292 } 299 }