Mercurial > hg > nginx
view src/imap/ngx_imap_parse.c @ 521:6f00349b98e5 release-0.1.35
nginx-0.1.35-RELEASE import
*) Feature: the "working_directory" directive.
*) Feature: the "port_in_redirect" directive.
*) Bugfix: the segmentation fault was occurred if the backend response
header was in several packets; the bug had appeared in 0.1.29.
*) Bugfix: if more than 10 servers were configured or some server did
not use the "listen" directive, then the segmentation fault was
occurred on the start.
*) Bugfix: the segmentation fault might occur if the response was
bigger than the temporary file.
*) Bugfix: nginx returned the 400 response on requests like
"GET http://www.domain.com/uri HTTP/1.0"; the bug had appeared in
0.1.28.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 07 Jun 2005 15:56:31 +0000 |
parents | d4ea69372b94 |
children | 7fa11e5c6e96 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_imap.h> ngx_int_t ngx_pop3_parse_command(ngx_imap_session_t *s) { u_char ch, *p, *c; ngx_str_t *arg; enum { sw_start = 0, sw_spaces_before_argument, sw_argument, sw_almost_done, sw_done } state; state = s->state; p = s->buffer->pos; while (p < s->buffer->last && state < sw_done) { ch = *p++; switch (state) { /* POP3 command */ case sw_start: if (ch == ' ' || ch == CR || ch == LF) { c = s->buffer->start; if (p - 1 - c == 4) { if (c[0] == 'U' && c[1] == 'S' && c[2] == 'E' && c[3] == 'R') { s->command = NGX_POP3_USER; } else if (c[0] == 'P' && c[1] == 'A' && c[2] == 'S' && c[3] == 'S') { s->command = NGX_POP3_PASS; } else if (c[0] == 'Q' && c[1] == 'U' && c[2] == 'I' && c[3] == 'T') { s->command = NGX_POP3_QUIT; #if 0 } else if (c[0] == 'N' && c[1] == 'O' && c[2] == 'O' && c[3] == 'P') { s->command = NGX_POP3_NOOP; #endif } else { s->state = sw_start; return NGX_IMAP_PARSE_INVALID_COMMAND; } } else { s->state = sw_start; return NGX_IMAP_PARSE_INVALID_COMMAND; } switch (ch) { case ' ': state = sw_spaces_before_argument; break; case CR: state = sw_almost_done; break; case LF: state = sw_done; break; } break; } if (ch < 'A' || ch > 'Z') { s->state = sw_start; return NGX_IMAP_PARSE_INVALID_COMMAND; } break; /* the spaces before the argument */ case sw_spaces_before_argument: switch (ch) { case ' ': break; case CR: state = sw_almost_done; s->arg_end = p - 1; break; case LF: state = sw_done; s->arg_end = p - 1; break; default: if (s->args.nelts > 2) { s->state = sw_start; return NGX_IMAP_PARSE_INVALID_COMMAND; } state = sw_argument; s->arg_start = p - 1; break; } break; /* the argument */ case sw_argument: switch (ch) { case ' ': case CR: case LF: arg = ngx_array_push(&s->args); if (arg == NULL) { return NGX_ERROR; } arg->len = p - 1 - s->arg_start; arg->data = s->arg_start; s->arg_start = NULL; switch (ch) { case ' ': state = sw_spaces_before_argument; break; case CR: state = sw_almost_done; break; case LF: state = sw_done; break; } break; default: break; } break; /* end of request line */ case sw_almost_done: switch (ch) { case LF: state = sw_done; break; default: s->state = sw_start; return NGX_IMAP_PARSE_INVALID_COMMAND; } break; /* suppress warning */ case sw_done: break; } } s->buffer->pos = p; if (state == sw_done) { if (s->arg_start) { arg = ngx_array_push(&s->args); if (arg == NULL) { return NGX_ERROR; } arg->len = s->arg_end - s->arg_start; arg->data = s->arg_start; s->arg_start = NULL; } s->state = sw_start; return NGX_OK; } else { s->state = state; return NGX_AGAIN; } }