mirror of
https://git.gnunet.org/libmicrohttpd.git
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150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/*
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This file is part of libmicrohttpd
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Copyright (C) 2007, 2008 Christian Grothoff (and other contributing authors)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file fileserver_example_external_select.c
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* @brief minimal example for how to use libmicrohttpd to server files
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include <microhttpd.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#define PAGE "<html><head><title>File not found</title></head><body>File not found</body></html>"
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static ssize_t
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file_reader (void *cls, uint64_t pos, char *buf, size_t max)
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{
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FILE *file = cls;
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(void) fseek (file, pos, SEEK_SET);
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return fread (buf, 1, max, file);
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}
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static void
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free_callback (void *cls)
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{
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FILE *file = cls;
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fclose (file);
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}
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static int
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ahc_echo (void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data,
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size_t *upload_data_size, void **ptr)
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{
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static int aptr;
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struct MHD_Response *response;
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int ret;
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FILE *file;
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struct stat buf;
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if (0 != strcmp (method, MHD_HTTP_METHOD_GET))
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return MHD_NO; /* unexpected method */
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if (&aptr != *ptr)
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{
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/* do never respond on first call */
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*ptr = &aptr;
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return MHD_YES;
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}
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*ptr = NULL; /* reset when done */
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if ( (0 == stat (&url[1], &buf)) &&
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(S_ISREG (buf.st_mode)) )
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file = fopen (&url[1], "rb");
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else
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file = NULL;
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if (file == NULL)
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{
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response = MHD_create_response_from_buffer (strlen (PAGE),
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(void *) PAGE,
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MHD_RESPMEM_PERSISTENT);
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ret = MHD_queue_response (connection, MHD_HTTP_NOT_FOUND, response);
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MHD_destroy_response (response);
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}
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else
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{
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response = MHD_create_response_from_callback (buf.st_size, 32 * 1024, /* 32k page size */
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&file_reader,
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file,
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&free_callback);
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if (response == NULL)
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{
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fclose (file);
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return MHD_NO;
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}
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ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
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MHD_destroy_response (response);
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}
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return ret;
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}
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int
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main (int argc, char *const *argv)
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{
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struct MHD_Daemon *d;
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time_t end;
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time_t t;
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struct timeval tv;
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fd_set rs;
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fd_set ws;
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fd_set es;
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MHD_socket max;
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MHD_UNSIGNED_LONG_LONG mhd_timeout;
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if (argc != 3)
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{
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printf ("%s PORT SECONDS-TO-RUN\n", argv[0]);
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return 1;
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}
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d = MHD_start_daemon (MHD_USE_DEBUG,
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atoi (argv[1]),
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NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_END);
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if (d == NULL)
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return 1;
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end = time (NULL) + atoi (argv[2]);
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while ((t = time (NULL)) < end)
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{
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tv.tv_sec = end - t;
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tv.tv_usec = 0;
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max = 0;
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FD_ZERO (&rs);
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FD_ZERO (&ws);
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FD_ZERO (&es);
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if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
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break; /* fatal internal error */
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if (MHD_get_timeout (d, &mhd_timeout) == MHD_YES)
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{
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if (((MHD_UNSIGNED_LONG_LONG)tv.tv_sec) < mhd_timeout / 1000LL)
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{
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tv.tv_sec = mhd_timeout / 1000LL;
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tv.tv_usec = (mhd_timeout - (tv.tv_sec * 1000LL)) * 1000LL;
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}
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}
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select (max + 1, &rs, &ws, &es, &tv);
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MHD_run (d);
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}
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MHD_stop_daemon (d);
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return 0;
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}
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