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htcp.c
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/*
Copyright (c) 2002-7, Andrew McNab, University of Manchester
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:
o Redistributions of source code must retain the above
copyright notice, this list of conditions and the following
disclaimer.
o Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials
provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
/*---------------------------------------------------------------*
* For more about GridSite: http://www.gridsite.org/ *
*---------------------------------------------------------------*/
#ifndef VERSION
#define VERSION "0.0.0"
#endif
#define _GNU_SOURCE
#include <pwd.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/time.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/types.h>
#include <curl/curl.h>
#include <errno.h>
#include <netdb.h>
#include <ctype.h>
#include "gridsite.h"
#define HTCP_GET 1
#define HTCP_PUT 2
#define HTCP_DELETE 3
#define HTCP_LIST 4
#define HTCP_LONGLIST 5
#define HTCP_MKDIR 6
#define HTCP_MOVE 7
#define HTCP_PING 8
#define HTCP_FIND 9
#define HTCP_RMTCP 10
#define HTCP_SITECAST_GROUPS 32
#define HTCP_HOST_CONF "/etc/htcp.conf"
#define HTCP_USER_CONF ".htcp.conf"
struct grst_stream_data { char *source;
char *destination;
int ishttps;
int method;
FILE *fp;
char *cert;
char *key;
char *capath;
char *useragent;
char *errorbuf;
int noverify;
int anonymous;
int gridhttp;
int verbose;
int timeout;
char *groups;
int sitecast;
char *domain; } ;
struct grst_index_blob { char *text;
size_t used;
size_t allocated; } ;
struct grst_dir_list { char *filename;
size_t length;
int length_set;
time_t modified;
int modified_set; } ;
struct grst_header_data { int retcode;
char *location;
char *gridhttppasscode;
size_t length;
int length_set;
time_t modified;
int modified_set;
struct grst_stream_data *common_data; } ;
struct grst_sitecast_group { struct addrinfo *ai;
int timewait; int ttl; };
size_t headers_callback(void *ptr, size_t size, size_t nmemb, void *p)
/* Find the values of the return code, Content-Length, Last-Modified
and Location headers */
{
float f;
char *s, *q;
size_t realsize;
struct tm modified_tm;
struct grst_header_data *header_data;
header_data = (struct grst_header_data *) p;
realsize = size * nmemb;
s = malloc(realsize + 1);
memcpy(s, ptr, realsize);
s[realsize] = '\0';
if (sscanf(s, "Content-Length: %zd", &(header_data->length)) == 1)
header_data->length_set = 1;
else if (sscanf(s, "HTTP/%f %d ", &f, &(header_data->retcode)) == 2) ;
else if (strncmp(s, "Location: ", 10) == 0)
{
header_data->location = strdup(&s[10]);
for (q=header_data->location; *q != '\0'; ++q)
if ((*q == '\r') || (*q == '\n')) *q = '\0';
if (header_data->common_data->verbose > 0)
fprintf(stderr, "Received Location: %s\n", header_data->location);
}
else if (strncmp(s, "Set-Cookie: GRIDHTTP_PASSCODE=", 29) == 0)
{
header_data->gridhttppasscode = strdup(&s[12]);
q = index(header_data->gridhttppasscode, ';');
if (q != NULL) *q = '\0';
if (header_data->common_data->verbose > 0)
fprintf(stderr, "Received GridHTTP Auth Cookie: %s\n",
header_data->gridhttppasscode);
}
else if (strncmp(s, "Last-Modified: ", 15) == 0)
{
/* follow RFC 2616: first try RFC 822 (kosher), then RFC 850 and
asctime() formats too. Must be GMT whatever the format. */
if (strptime(&s[15], "%a, %d %b %Y %T GMT", &modified_tm) != NULL)
{
header_data->modified = mktime(&modified_tm);
header_data->modified_set = 1;
}
else if (strptime(&s[15], "%a, %d-%b-%y %T GMT", &modified_tm) != NULL)
{
header_data->modified = mktime(&modified_tm);
header_data->modified_set = 1;
}
else if (strptime(&s[15], "%a %b %d %T %Y", &modified_tm) != NULL)
{
header_data->modified = mktime(&modified_tm);
header_data->modified_set = 1;
}
}
free(s);
return realsize;
}
int set_std_opts(CURL *easyhandle, struct grst_stream_data *common_data)
{
struct stat statbuf;
curl_easy_setopt(easyhandle, CURLOPT_FOLLOWLOCATION, 0);
if ((common_data->cert != NULL) && (common_data->key != NULL))
{
curl_easy_setopt(easyhandle, CURLOPT_SSLENGINE, NULL);
curl_easy_setopt(easyhandle, CURLOPT_SSLCERTTYPE, "PEM");
curl_easy_setopt(easyhandle, CURLOPT_SSLCERT, common_data->cert);
curl_easy_setopt(easyhandle, CURLOPT_SSLKEY, common_data->key);
}
else
{
curl_easy_setopt(easyhandle, CURLOPT_SSLENGINE, "RSA");
curl_easy_setopt(easyhandle, CURLOPT_SSLCERTTYPE, "ENG");
}
if (common_data->capath != NULL)
{
#if (LIBCURL_VERSION_NUM >= 0x070908)
if ((stat(common_data->capath, &statbuf) == 0) &&
S_ISDIR(statbuf.st_mode))
curl_easy_setopt(easyhandle, CURLOPT_CAPATH, common_data->capath);
else
#endif
curl_easy_setopt(easyhandle, CURLOPT_CAINFO, common_data->capath);
}
if (common_data->noverify)
{
curl_easy_setopt(easyhandle, CURLOPT_SSL_VERIFYPEER, 0);
curl_easy_setopt(easyhandle, CURLOPT_SSL_VERIFYHOST, 0);
}
else
{
curl_easy_setopt(easyhandle, CURLOPT_SSL_VERIFYPEER, 2);
curl_easy_setopt(easyhandle, CURLOPT_SSL_VERIFYHOST, 2);
}
return 1;
}
int do_rmtcp(char *sources[], char *destination,
struct grst_stream_data *common_data)
{
CURL *easyhandle;
char *p, *thisdestination;
int isrc, anyerror = 0, thiserror, isdirdest;
struct grst_header_data header_data;
struct curl_slist *gh_header_slist=NULL, *nogh_header_slist=NULL;
char remoteserver[255];
easyhandle = curl_easy_init();
if( !easyhandle )
{
fprintf(stderr, "Cannot initialize CURL handle while preparing to copy file.\n");
exit(-1);
}
common_data->gridhttp = 1; // for debug purpose
if (common_data->gridhttp)
{
asprintf(&p, "Upgrade: GridHTTP/1.0");
gh_header_slist = curl_slist_append(gh_header_slist, p);
free(p);
nogh_header_slist = curl_slist_append(nogh_header_slist, "Upgrade:");
}
// common_data->verbose = 1; //for debug purpose
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
if (common_data->verbose > 1)
curl_easy_setopt(easyhandle, CURLOPT_VERBOSE, 1);
curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, headers_callback);
curl_easy_setopt(easyhandle, CURLOPT_WRITEHEADER, &header_data);
set_std_opts(easyhandle, common_data);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
if (destination[strlen(destination) - 1] != '/')
{
isdirdest = 0;
thisdestination = destination;
}
else isdirdest = 1;
for (isrc=0; sources[isrc] != NULL; ++isrc)
{
if (isdirdest)
{
p = rindex(sources[isrc], '/');
if (p == NULL) p = sources[isrc];
else p++;
asprintf(&thisdestination, "%s%s", destination, p);
}
if( strncmp(sources[isrc], "https://", 8) == 0 ){
if (common_data->verbose > 0)
fprintf(stderr, "%s -> %s\n", sources[isrc], thisdestination);
curl_easy_setopt(easyhandle, CURLOPT_URL, sources[isrc]);
if ((common_data->gridhttp) &&
(strncmp(sources[isrc], "https://", 8) == 0))
{
if (common_data->verbose > 0)
fprintf(stderr, "Add Upgrade: GridHTTP/1.0\n");
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,gh_header_slist);
}
else
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,nogh_header_slist);
header_data.retcode = 0;
header_data.location = NULL;
header_data.gridhttppasscode = NULL;
header_data.common_data = common_data;
thiserror = curl_easy_perform(easyhandle);
}
asprintf(&p, "Destination: %s", thisdestination);
nogh_header_slist=NULL;
nogh_header_slist = curl_slist_append(nogh_header_slist,p);
// fprintf(stdout, "complete destination file: %s\n", p);
free(p);
// send request to destination server,
// to ask it to download file from source server
strcpy( remoteserver, destination);
while( (p=strrchr(remoteserver, '/')) !=NULL)
{
if( *(p-1) == '/' )break;
else *p = '\0';
}
common_data->source = sources[isrc];
common_data->destination = remoteserver;
set_std_opts(easyhandle, common_data);
// send copy request to copy server (destination)
asprintf(&p, "COPY %s", sources[isrc]);
curl_easy_setopt(easyhandle, CURLOPT_CUSTOMREQUEST, p);//"COPY");//gh_header_slist);
curl_easy_setopt(easyhandle, CURLOPT_URL, remoteserver);
curl_easy_setopt(easyhandle, CURLOPT_COOKIE, header_data.gridhttppasscode);
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
curl_easy_setopt(easyhandle, CURLOPT_HTTPHEADER, nogh_header_slist);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
thiserror = curl_easy_perform(easyhandle);
free(p);
}
curl_easy_cleanup(easyhandle);
return anyerror;
}
int do_copies(char *sources[], char *destination,
struct grst_stream_data *common_data)
{
char *p, *thisdestination;
int isrc, anyerror = 0, thiserror, isdirdest;
CURL *easyhandle;
struct stat statbuf;
struct grst_header_data header_data;
struct curl_slist *gh_header_slist = NULL, *nogh_header_slist = NULL;
easyhandle = curl_easy_init();
if (common_data->gridhttp)
{
asprintf(&p, "Upgrade: GridHTTP/1.0");
gh_header_slist = curl_slist_append(gh_header_slist, p);
free(p);
nogh_header_slist = curl_slist_append(nogh_header_slist, "Upgrade:");
}
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
if (common_data->verbose > 1)
curl_easy_setopt(easyhandle, CURLOPT_VERBOSE, 1);
curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, headers_callback);
curl_easy_setopt(easyhandle, CURLOPT_WRITEHEADER, &header_data);
set_std_opts(easyhandle, common_data);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
if (destination[strlen(destination) - 1] != '/')
{
isdirdest = 0;
thisdestination = destination;
}
else isdirdest = 1;
for (isrc=0; sources[isrc] != NULL; ++isrc)
{
if (isdirdest)
{
p = rindex(sources[isrc], '/');
if (p == NULL) p = sources[isrc];
else p++;
asprintf(&thisdestination, "%s%s", destination, p);
}
if (common_data->verbose > 0)
fprintf(stderr, "Copy %s -> %s\n", sources[isrc], thisdestination);
if (common_data->method == HTCP_GET)
{
common_data->fp = fopen(thisdestination, "w");
if (common_data->fp == NULL)
{
fprintf(stderr,"... failed to open destination source file %s\n",
thisdestination);
anyerror = 99;
if (isdirdest) free(thisdestination);
continue;
}
curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, common_data->fp);
curl_easy_setopt(easyhandle, CURLOPT_URL, sources[isrc]);
if ((common_data->gridhttp) &&
(strncmp(sources[isrc], "https://", 8) == 0))
{
if (common_data->verbose > 0)
fprintf(stderr, "Add Upgrade: GridHTTP/1.0\n");
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,gh_header_slist);
}
else
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,nogh_header_slist);
}
else if (common_data->method == HTCP_PUT)
{
if (stat(sources[isrc], &statbuf) != 0)
{
fprintf(stderr, "... source file %s not found\n", sources[isrc]);
anyerror = 99;
if (isdirdest) free(thisdestination);
continue;
}
common_data->fp = fopen(sources[isrc], "r");
if (common_data->fp == NULL)
{
fprintf(stderr, "... failed to open source file %s\n",
sources[isrc]);
anyerror = 99;
if (isdirdest) free(thisdestination);
continue;
}
curl_easy_setopt(easyhandle, CURLOPT_READDATA, common_data->fp);
curl_easy_setopt(easyhandle, CURLOPT_URL, thisdestination);
curl_easy_setopt(easyhandle, CURLOPT_INFILESIZE, statbuf.st_size);
curl_easy_setopt(easyhandle, CURLOPT_UPLOAD, 1);
if ((common_data->gridhttp) &&
(strncmp(thisdestination, "https://", 8) == 0))
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,gh_header_slist);
else
curl_easy_setopt(easyhandle,CURLOPT_HTTPHEADER,nogh_header_slist);
}
header_data.retcode = 0;
header_data.location = NULL;
header_data.gridhttppasscode = NULL;
header_data.common_data = common_data;
thiserror = curl_easy_perform(easyhandle);
fclose(common_data->fp);
if ((common_data->gridhttp) &&
(thiserror == 0) &&
(header_data.retcode == 302) &&
(header_data.location != NULL) &&
(strncmp(header_data.location, "http://", 7) == 0) &&
(header_data.gridhttppasscode != NULL))
{
if (common_data->verbose > 0)
fprintf(stderr, "... Found (%d)\nGridHTTP redirect to %s\n",
header_data.retcode, header_data.location);
/* try again with new URL and all the previous CURL options */
if (common_data->method == HTCP_GET)
{
common_data->fp = fopen(thisdestination, "w");
if (common_data->fp == NULL)
{
fprintf(stderr, "... failed to open destination source "
"file %s\n", thisdestination);
anyerror = 99;
if (isdirdest) free(thisdestination);
continue;
}
}
else if (common_data->method == HTCP_PUT)
{
common_data->fp = fopen(sources[isrc], "r");
if (common_data->fp == NULL)
{
fprintf(stderr, "... failed to open source file %s\n",
sources[isrc]);
anyerror = 99;
if (isdirdest) free(thisdestination);
continue;
}
}
header_data.retcode = 0;
curl_easy_setopt(easyhandle, CURLOPT_URL, header_data.location);
curl_easy_setopt(easyhandle, CURLOPT_HTTPHEADER, nogh_header_slist);
curl_easy_setopt(easyhandle, CURLOPT_COOKIE,
header_data.gridhttppasscode);
thiserror = curl_easy_perform(easyhandle);
fclose(common_data->fp);
}
if ((thiserror != 0) ||
(header_data.retcode >= 300))
{
fprintf(stderr, "... curl error: %s (%d), HTTP error: %d\n",
common_data->errorbuf, thiserror, header_data.retcode);
if (thiserror != 0) anyerror = thiserror;
else anyerror = header_data.retcode;
}
else if (common_data->verbose > 0)
fprintf(stderr, "... OK (%d)\n", header_data.retcode);
if (isdirdest) free(thisdestination);
}
curl_easy_cleanup(easyhandle);
return anyerror;
}
int do_deletes(char *sources[], struct grst_stream_data *common_data)
{
int isrc, anyerror = 0, thiserror;
CURL *easyhandle;
struct grst_header_data header_data;
header_data.common_data = common_data;
easyhandle = curl_easy_init();
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
if (common_data->verbose > 1)
curl_easy_setopt(easyhandle, CURLOPT_VERBOSE, 1);
curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, headers_callback);
curl_easy_setopt(easyhandle, CURLOPT_WRITEHEADER, &header_data);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
curl_easy_setopt(easyhandle, CURLOPT_CUSTOMREQUEST, "DELETE");
curl_easy_setopt(easyhandle, CURLOPT_NOBODY, 1);
set_std_opts(easyhandle, common_data);
for (isrc=0; sources[isrc] != NULL; ++isrc)
{
if (common_data->verbose > 0)
fprintf(stderr, "Deleting %s\n", sources[isrc]);
curl_easy_setopt(easyhandle, CURLOPT_URL, sources[isrc]);
header_data.retcode = 0;
thiserror = curl_easy_perform(easyhandle);
if ((thiserror != 0) ||
(header_data.retcode >= 300))
{
fprintf(stderr, "... curl error: %s (%d), HTTP error: %d\n",
common_data->errorbuf, thiserror, header_data.retcode);
if (thiserror != 0) anyerror = thiserror;
else anyerror = header_data.retcode;
}
else if (common_data->verbose > 0)
fprintf(stderr, "... OK (%d)\n", header_data.retcode);
}
curl_easy_cleanup(easyhandle);
return anyerror;
}
int do_move(char *source, char *destination,
struct grst_stream_data *common_data)
{
int anyerror = 0, thiserror;
char *destination_header;
CURL *easyhandle;
struct grst_header_data header_data;
struct curl_slist *header_slist = NULL;
easyhandle = curl_easy_init();
header_data.common_data = common_data;
easyhandle = curl_easy_init();
asprintf(&destination_header, "Destination: %s", destination);
header_slist = curl_slist_append(header_slist, destination_header);
curl_easy_setopt(easyhandle, CURLOPT_HTTPHEADER, header_slist);
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
if (common_data->verbose > 1)
curl_easy_setopt(easyhandle, CURLOPT_VERBOSE, 1);
curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, headers_callback);
curl_easy_setopt(easyhandle, CURLOPT_WRITEHEADER, &header_data);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
curl_easy_setopt(easyhandle, CURLOPT_CUSTOMREQUEST, "MOVE");
curl_easy_setopt(easyhandle, CURLOPT_NOBODY, 1);
set_std_opts(easyhandle, common_data);
if (common_data->verbose > 0)
fprintf(stderr, "Moving %s to %s\n", source, destination);
curl_easy_setopt(easyhandle, CURLOPT_URL, source);
header_data.retcode = 0;
thiserror = curl_easy_perform(easyhandle);
if ((thiserror != 0) ||
(header_data.retcode >= 300))
{
fprintf(stderr, "... curl error: %s (%d), HTTP error: %d\n",
common_data->errorbuf, thiserror, header_data.retcode);
if (thiserror != 0) anyerror = thiserror;
else anyerror = header_data.retcode;
}
else if (common_data->verbose > 0)
fprintf(stderr, "... OK (%d)\n", header_data.retcode);
curl_easy_cleanup(easyhandle);
return anyerror;
}
int do_mkdirs(char *sources[], struct grst_stream_data *common_data)
{
int isrc, anyerror = 0, thiserror;
CURL *easyhandle;
struct grst_header_data header_data;
header_data.common_data = common_data;
easyhandle = curl_easy_init();
curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, common_data->useragent);
if (common_data->verbose > 1)
curl_easy_setopt(easyhandle, CURLOPT_VERBOSE, 1);
curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, headers_callback);
curl_easy_setopt(easyhandle, CURLOPT_WRITEHEADER, &header_data);
curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, common_data->errorbuf);
curl_easy_setopt(easyhandle, CURLOPT_CUSTOMREQUEST, "PUT");
curl_easy_setopt(easyhandle, CURLOPT_NOBODY, 1);
set_std_opts(easyhandle, common_data);
for (isrc=0; sources[isrc] != NULL; ++isrc)
{
if (common_data->verbose > 0)
fprintf(stderr, "Make directory %s\n", sources[isrc]);
curl_easy_setopt(easyhandle, CURLOPT_URL, sources[isrc]);
header_data.retcode = 0;
thiserror = curl_easy_perform(easyhandle);
if ((thiserror != 0) ||
(header_data.retcode >= 300))
{
fprintf(stderr, "... curl error: %s (%d), HTTP error: %d\n",
common_data->errorbuf, thiserror, header_data.retcode);
if (thiserror != 0) anyerror = thiserror;
else anyerror = header_data.retcode;
}
else if (common_data->verbose > 0)
fprintf(stderr, "... OK (%d)\n", header_data.retcode);
}
curl_easy_cleanup(easyhandle);
return anyerror;
}
static int
parse_groups(const char *grps, struct grst_sitecast_group *sitecast_groups, int group_num, int *res_num)
{
struct addrinfo *ai;
struct addrinfo hints;
char *groups, *p, *port, *rest, def_port[8];
int igroup, ret;
igroup = -1;
groups = strdup(grps);
if (groups == NULL) {
perror("Error parsing multicast groups");
return ENOMEM;
}
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_ADDRCONFIG | AI_NUMERICSERV | AI_NUMERICHOST;
snprintf(def_port, sizeof(def_port), "%u", GRST_HTCP_PORT);
p = strtok(groups, " ,");
while (p && igroup+1 < group_num) {
/* still IPv4 only: */
port = strchr(p, ':');
if (port == NULL) {
fprintf(stderr, "Failed to parse multicast group, port missing\n");
return CURLE_FAILED_INIT;
}
*port++ = '\0';
rest = strchr(port, ':');
if (rest)
*rest++ = '\0';
ret = getaddrinfo(p, (port) ? port : def_port, &hints, &ai);
if (ret) {
goto end_loop;
}
sitecast_groups[igroup+1].ai = ai;
sitecast_groups[igroup+1].timewait = 1;
sitecast_groups[igroup+1].ttl = 1;
if (rest) {
ret = sscanf(rest, "%d:%d",
&(sitecast_groups[igroup+1].ttl),
&(sitecast_groups[igroup+1].timewait));
if (ret < 1) {
fprintf(stderr, "Failed to parse multicast group "
"parameter %s\n", p);
return CURLE_FAILED_INIT;
}
}
igroup++;
end_loop:
p = strtok(NULL, " ,");
}
free(groups);
if (igroup == -1)
{
fprintf(stderr, "Failed to parse multicast group parameter %s\n", p);
return CURLE_FAILED_INIT;
}
*res_num = igroup;
return 0;
}
int do_ping(struct grst_stream_data *common_data_ptr)
{
int request_length, response_length, i, ret, s, igroup, max_fd;
struct sockaddr from;
socklen_t fromlen;
#define MAXBUF 8192
char *request, response[MAXBUF];
GRSThtcpMessage msg;
struct timeval start_timeval, wait_timeval, response_timeval;
struct grst_sitecast_group sitecast_groups[HTCP_SITECAST_GROUPS];
fd_set readsckts, open_sckts;
struct addrinfo *a;
char host[INET6_ADDRSTRLEN];
char serv[8];
/* parse common_data_ptr->groups */
if (common_data_ptr->groups == NULL)
{
fprintf(stderr, "No multicast groups given\n");
return CURLE_FAILED_INIT;
}
ret = parse_groups(common_data_ptr->groups, sitecast_groups, HTCP_SITECAST_GROUPS, &igroup);
if (ret)
return ret;
/* loop through multicast groups and send off the NOP pings */
GRSThtcpNOPrequestMake(&request, &request_length,
(int) (start_timeval.tv_usec + i));
gettimeofday(&start_timeval, NULL);
FD_ZERO(&open_sckts);
max_fd = -1;
for (i=0; i <= igroup; ++i) {
a = sitecast_groups[i].ai;
for (a = sitecast_groups[i].ai; a != NULL; a = a->ai_next) {
s = socket(a->ai_family, a->ai_socktype, a->ai_protocol);
if (s < 0)
continue;
ret = sendto(s, request, request_length, 0, a->ai_addr, a->ai_addrlen);
if (ret < 0) {
close(s);
continue;
}
if (common_data_ptr->verbose > 0) {
getnameinfo(a->ai_addr, a->ai_addrlen, host, sizeof(host), NULL, 0, NI_NUMERICHOST);
fprintf(stderr, "UDP/HTCP NOP ping to %s\n", host);
}
FD_SET(s, &open_sckts);
if (s > max_fd)
max_fd = s;
}
}
free(request);
/* reusing wait_timeval is a Linux-specific feature of select() */
wait_timeval.tv_sec = common_data_ptr->timeout
? common_data_ptr->timeout : 60;
wait_timeval.tv_usec = 0;
while ((wait_timeval.tv_sec > 0) || (wait_timeval.tv_usec > 0))
{
readsckts = open_sckts;
ret = select(max_fd + 1, &readsckts, NULL, NULL, &wait_timeval);
gettimeofday(&response_timeval, NULL);
if (ret > 0)
{
for (s = 0; s <= max_fd; s++) {
if (FD_ISSET(s, &readsckts))
break;
}
if (s > max_fd)
break;
fromlen = sizeof(from);
response_length = recvfrom(s, response, MAXBUF,
0, &from, &fromlen);
getnameinfo(&from, fromlen,
host, sizeof(host),
serv, sizeof(serv), NI_NUMERICHOST);
if (common_data_ptr->verbose > 0) {
fprintf(stderr, "UDP mesg from %s:%s\n",
host, serv);
}
if ((GRSThtcpMessageParse(&msg, response, response_length)
== GRST_RET_OK) &&
(msg.opcode == GRSThtcpNOPop) && (msg.rr == 1) &&
(msg.trans_id >= (int) start_timeval.tv_usec) &&
(msg.trans_id <= (int) (start_timeval.tv_usec + igroup)))
{
printf("%s:%s %.3fms\n",
host, serv,
(((long) 1000000 * response_timeval.tv_sec) +
((long) response_timeval.tv_usec) -
((long) 1000000 * start_timeval.tv_sec) -
((long) start_timeval.tv_usec)) / 1000.0);
}
}
}
for (s = 0; s <=max_fd; s++)
if (FD_ISSET(s, &open_sckts))
close(s);
return GRST_RET_OK;
}
int do_finds(char *sources[],
struct grst_stream_data *common_data_ptr, int num)
{
int isrc;
int request_length, response_length, i, ret, s, igroup, max_fd;
struct sockaddr from;
socklen_t fromlen;
#define MAXBUF 8192
char *request, response[MAXBUF];
GRSThtcpMessage msg;
struct timeval start_timeval, wait_timeval;
struct grst_sitecast_group sitecast_groups[HTCP_SITECAST_GROUPS];
fd_set readsckts, open_sckts;
struct addrinfo *a;
char host[INET6_ADDRSTRLEN];
char serv[8];
/* parse common_data_ptr->groups */
if (common_data_ptr->groups == NULL)
{
fprintf(stderr, "No multicast groups given\n");
return CURLE_FAILED_INIT;
}
ret = parse_groups(common_data_ptr->groups, sitecast_groups, HTCP_SITECAST_GROUPS, &igroup);
if (ret)
return ret;
/* loop through multicast groups since we need to take each
ones timewait into account */
gettimeofday(&start_timeval, NULL);
for (i=0; i <= igroup; ++i)
{
FD_ZERO(&open_sckts);
max_fd = -1;
for (a = sitecast_groups[i].ai; a != NULL; a = a->ai_next) {
s = socket(a->ai_family, a->ai_socktype, a->ai_protocol);
if (s < 0)
continue;
if (common_data_ptr->verbose) {
getnameinfo(a->ai_addr, a->ai_addrlen,
host, sizeof(host),
serv, sizeof(serv), NI_NUMERICHOST);
fprintf(stderr, "Querying multicast group %s:%s:%d:%d\n",
host, serv, sitecast_groups[i].ttl,
sitecast_groups[i].timewait);
}
/* send off queries, one for each source file */
for (isrc=0; sources[isrc] != NULL; ++isrc)
{
GRSThtcpTSTrequestMake(&request, &request_length,
(int) (start_timeval.tv_usec + isrc),
"GET", sources[isrc], "");
sendto(s, request, request_length, 0,
a->ai_addr, a->ai_addrlen);
free(request);
}
FD_SET(s, &open_sckts);
if (s > max_fd)
max_fd = s;
}
/* reusing wait_timeval is a Linux-specific feature of select() */
wait_timeval.tv_usec = 0;
wait_timeval.tv_sec = sitecast_groups[i].timewait;
while ((wait_timeval.tv_sec > 0) || (wait_timeval.tv_usec > 0))
{
readsckts = open_sckts;
ret = select(max_fd + 1, &readsckts, NULL, NULL, &wait_timeval);
if (ret > 0)
{
for (s = 0; s <= max_fd; s++) {
if (FD_ISSET(s, &readsckts))
break;
}
if (s > max_fd)
break;
fromlen = sizeof(from);
response_length = recvfrom(s, response, MAXBUF,
0, &from, &fromlen);
if ((GRSThtcpMessageParse(&msg, response, response_length)
== GRST_RET_OK) &&
(msg.opcode == GRSThtcpTSTop) && (msg.rr == 1) &&
(msg.trans_id >= (int) start_timeval.tv_usec) &&
(msg.trans_id < (int) (start_timeval.tv_usec + num)) &&
(msg.resp_hdrs != NULL) &&
(GRSThtcpCountstrLen(msg.resp_hdrs) > 12))
{
if (num > 1) printf("%s -> %.*s\n",
sources[msg.trans_id - (int) start_timeval.tv_usec],
GRSThtcpCountstrLen(msg.resp_hdrs) - 12,
&(msg.resp_hdrs->text[10]));
else printf("%.*s\n",
GRSThtcpCountstrLen(msg.resp_hdrs) - 12,
&(msg.resp_hdrs->text[10]));
}
}
}
}
for (s = 0; s <=max_fd; s++)
if (FD_ISSET(s, &open_sckts))
close(s);
return GRST_RET_OK;
}
int translate_sitecast_url(char **source_ptr,
struct grst_stream_data *common_data_ptr)
{
int request_length, response_length, i, ret, s, igroup, max_fd;