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/*
This file is part of libmicrohttpd
(C) 2007 Daniel Pittman and Christian Grothoff
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file microhttpd/internal.c
* @brief internal shared structures
* @author Daniel Pittman
* @author Christian Grothoff
*/
#include "internal.h"
#if HAVE_MESSAGES
#if DEBUG_STATES
/**
* State to string dictionary.
*/
HIDDEN_SYMBOL
const char *
MHD_state_to_string (enum MHD_CONNECTION_STATE state)
{
switch (state)
{
case MHD_CONNECTION_INIT:
return "connection init";
case MHD_CONNECTION_URL_RECEIVED:
return "connection url received";
case MHD_CONNECTION_HEADER_PART_RECEIVED:
return "header partially received";
case MHD_CONNECTION_HEADERS_RECEIVED:
return "headers received";
case MHD_CONNECTION_HEADERS_PROCESSED:
return "headers processed";
case MHD_CONNECTION_CONTINUE_SENDING:
return "continue sending";
case MHD_CONNECTION_CONTINUE_SENT:
return "continue sent";
case MHD_CONNECTION_BODY_RECEIVED:
return "body received";
case MHD_CONNECTION_FOOTER_PART_RECEIVED:
return "footer partially received";
case MHD_CONNECTION_FOOTERS_RECEIVED:
return "footers received";
case MHD_CONNECTION_HEADERS_SENDING:
return "headers sending";
case MHD_CONNECTION_HEADERS_SENT:
return "headers sent";
case MHD_CONNECTION_NORMAL_BODY_READY:
return "normal body ready";
case MHD_CONNECTION_NORMAL_BODY_UNREADY:
return "normal body unready";
case MHD_CONNECTION_CHUNKED_BODY_READY:
return "chunked body ready";
case MHD_CONNECTION_CHUNKED_BODY_UNREADY:
return "chunked body unready";
case MHD_CONNECTION_BODY_SENT:
return "body sent";
case MHD_CONNECTION_FOOTERS_SENDING:
return "footers sending";
case MHD_CONNECTION_FOOTERS_SENT:
return "footers sent";
case MHD_CONNECTION_CLOSED:
return "closed";
case MHD_TLS_CONNECTION_INIT:
return "secure connection init";
default:
return "unrecognized connection state";
}
}
#endif
#endif
#if HAVE_MESSAGES
/**
* fprintf-like helper function for logging debug
* messages.
*/
void HIDDEN_SYMBOL
MHD_DLOG (const struct MHD_Daemon *daemon, const char *format, ...)
{
va_list va;
if ((daemon->options & MHD_USE_DEBUG) == 0)
return;
va_start (va, format);
daemon->custom_error_log (daemon->custom_error_log_cls, format, va);
va_end (va);
}
#endif
/**
* Process escape sequences ('+'=space, %HH) Updates val in place; the
* result should be UTF-8 encoded and cannot be larger than the input.
* The result must also still be 0-terminated.
*
* @param cls closure (use NULL)
* @param connection handle to connection, not used
* @param val value to unescape (modified in the process)
* @return length of the resulting val (strlen(val) maybe
* shorter afterwards due to elimination of escape sequences)
*/
HIDDEN_SYMBOL
size_t
MHD_http_unescape (void *cls,
struct MHD_Connection *connection,
char *val)
{
char *rpos = val;
char *wpos = val;
char *end;
unsigned int num;
char buf3[3];
while ('\0' != *rpos)
{
switch (*rpos)
{
case '+':
*wpos = ' ';
wpos++;
rpos++;
break;
case '%':
if ( ('\0' == rpos[1]) ||
('\0' == rpos[2]) )
{
*wpos = '\0';
return wpos - val;
}
buf3[0] = rpos[1];
buf3[1] = rpos[2];
buf3[2] = '\0';
num = strtoul (buf3, &end, 16);
if ('\0' == *end)
{
*wpos = (unsigned char) num;
wpos++;
rpos += 3;
break;
}
/* intentional fall through! */
default:
*wpos = *rpos;
wpos++;
rpos++;
}
}
*wpos = '\0'; /* add 0-terminator */
return wpos - val; /* = strlen(val) */
}
HIDDEN_SYMBOL
time_t
MHD_monotonic_time (void)
{
#ifdef HAVE_CLOCK_GETTIME
#ifdef CLOCK_MONOTONIC
struct timespec ts;
if (0 == clock_gettime (CLOCK_MONOTONIC, &ts))
return ts.tv_sec;
#endif
#endif
return time (NULL);
}
/* end of internal.c */
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