char *drawgraph(
long argc,
const char **args)
{
int i, xsize, ysize;
double ymin, ymax;
for (i = 0; i < argc; i++)
if (strcmp(args[i], "--imginfo") == 0 || strcmp(args[i], "-g") == 0)
break;
if (i == argc) {
args[argc++] = "--imginfo";
args[argc++] = "<IMG SRC=\"./%s\" WIDTH=\"%lu\" HEIGHT=\"%lu\">";
}
calfree();
if (rrd_graph
(argc + 1, (char **) args - 1, &calcpr, &xsize, &ysize, NULL, &ymin,
&ymax) != -1) {
return stralloc(calcpr[0]);
} else {
if (rrd_test_error()) {
const size_t len = strlen(rrd_get_error()) + DS_NAM_SIZE;
char *err = malloc(len);
snprintf(err, len, "[ERROR: %s]", rrd_get_error());
rrd_clear_error();
return err;
}
}
return NULL;
}
char* drawgraph(long argc, char **args){
int i,xsize, ysize;
for(i=0;i<argc;i++)
if(strcmp(args[i],"--imginfo")==0 || strcmp(args[i],"-g")==0) break;
if(i==argc) {
args[argc++] = "--imginfo";
args[argc++] = "<IMG SRC=\"./%s\" WIDTH=\"%lu\" HEIGHT=\"%lu\">";
}
optind=0; /* reset gnu getopt */
opterr=0; /* reset gnu getopt */
calfree();
if( rrd_graph(argc+1, args-1, &calcpr, &xsize, &ysize) != -1 ) {
return stralloc(calcpr[0]);
} else {
if (rrd_test_error()) {
char *err = malloc((strlen(rrd_get_error())+DS_NAM_SIZE)*sizeof(char));
sprintf(err, "[ERROR: %s]",rrd_get_error());
rrd_clear_error();
calfree();
return err;
}
}
return NULL;
}
int main(int argc, char *argv[]) {
long length;
char *buffer;
char *server_url = NULL;
long i;
long filter=0;
#ifdef MUST_DISABLE_SIGFPE
signal(SIGFPE,SIG_IGN);
#endif
#ifdef MUST_DISABLE_FPMASK
fpsetmask(0);
#endif
optind = 0; opterr = 0; /* initialize getopt */
/* what do we get for cmdline arguments?
for (i=0;i<argc;i++)
printf("%d-'%s'\n",i,argv[i]); */
while (1) {
static struct option long_options[] = {
{ "filter", no_argument, 0, 'f' },
{ 0, 0, 0, 0}
};
int option_index = 0;
int opt;
opt = getopt_long(argc, argv, "f", long_options, &option_index);
if (opt == EOF) {
break;
}
switch(opt) {
case 'f':
filter=1;
break;
case '?':
printf("unknown commandline option '%s'\n",argv[optind-1]);
return -1;
}
}
if (!filter) {
rrdcgiDebug(0,0);
rrdcgiArg = rrdcgiInit();
server_url = getenv("SERVER_URL");
}
/* make sure we have one extra argument,
if there are others, we do not care Apache gives several */
/* if ( (optind != argc-2
&& strstr( getenv("SERVER_SOFTWARE"),"Apache/2") != NULL)
&& optind != argc-1) { */
if ( optind >= argc ) {
fprintf(stderr, "ERROR: expected a filename\n");
exit(1);
} else {
length = readfile(argv[optind], &buffer, 1);
}
if(rrd_test_error()) {
fprintf(stderr, "ERROR: %s\n",rrd_get_error());
exit(1);
}
/* initialize variable heap */
initvar();
#ifdef DEBUG_PARSER
/* some fake header for testing */
printf ("Content-Type: text/html\nContent-Length: 10000000\n\n\n");
#endif
/* expand rrd directives in buffer recursivly */
for (i=0; buffer[i]; i++) {
if (buffer[i] != '<')
continue;
if (!filter) {
parse(&buffer, i, "<RRD::CV", cgiget);
parse(&buffer, i, "<RRD::CV::PATH", cgigetqp);
parse(&buffer, i, "<RRD::CV::QUOTE", cgigetq);
parse(&buffer, i, "<RRD::GETENV", rrdgetenv);
}
parse(&buffer, i, "<RRD::GETVAR", rrdgetvar);
parse(&buffer, i, "<RRD::GOODFOR", rrdgoodfor);
parse(&buffer, i, "<RRD::GRAPH", drawgraph);
parse(&buffer, i, "<RRD::INCLUDE", includefile);
parse(&buffer, i, "<RRD::PRINT", drawprint);
parse(&buffer, i, "<RRD::SETCONSTVAR", rrdsetvarconst);
parse(&buffer, i, "<RRD::SETENV", rrdsetenv);
parse(&buffer, i, "<RRD::SETVAR", rrdsetvar);
parse(&buffer, i, "<RRD::TIME::LAST", printtimelast);
parse(&buffer, i, "<RRD::TIME::NOW", printtimenow);
parse(&buffer, i, "<RRD::TIME::STRFTIME", printstrftime);
parse(&buffer, i, "<RRD::INTERNAL", rrdgetinternal);
}
if (!filter) {
printf ("Content-Type: text/html\n"
"Content-Length: %d\n",
strlen(buffer));
if (labs(goodfor) > 0) {
time_t now;
now = time(NULL);
printf("Last-Modified: %s\n", http_time(&now));
now += labs(goodfor);
printf("Expires: %s\n", http_time(&now));
if (goodfor < 0) {
printf("Refresh: %ld\n", labs(goodfor));
}
}
printf("\n");
}
/* output result */
printf("%s", buffer);
/* cleanup */
calfree();
if (buffer){
free(buffer);
}
donevar();
exit(0);
}
