Hello,
I am new to apache module development and need some help.
I have a search application which runs on port 8100. My C Socket client
connects to this port, writes query to server, reads result from server and
displays it on the console as given in desired_output.txt.
Now I have written an apache module to do the same task (mod_helloworld.c).
But it displays the output in the format as given in current_output.html. In
this output every 4th character starting from first matches the desired
output and rest is some special character. I have tried reading output via
wide characters (wchar_t) too, but with same result. Is there any function
in apache module by which we can directly write wide characters to html or
is there some other solution to this problem. Any help in this regard will
be higly appreciated.
Regards
--
Himadri
#include <httpd.h>
#include <http_protocol.h>
#include <http_config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <unistd.h>
#include <strings.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <stdio.h>
#define MAXLINE 1024
#define HOST "127.0.0.1"
#define PORT 8100
void
str_cli(char * sendline, int sockfd, request_rec * r)
{
char ch;
//write query to server
write(sockfd, sendline, strlen(sendline));
int n, i;
//receive results of query
while ( n = read(sockfd, &ch, 1) != 0)
{
ap_rprintf(r, "%lc\n", ch);
}
}
int
connect_server(request_rec * r, char * query)
{
int sockfd;
struct sockaddr_in servaddr;
int retval;
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
printf("socket() failed.\n");
exit(-1);
}
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(PORT);
servaddr.sin_addr.s_addr = inet_addr(HOST);
retval = connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr));
if (retval == -1) {
printf("connect() failed.\n");
exit(-1);
}
str_cli(query, sockfd, r);
exit(0);
}
static int helloworld_handler(request_rec* r)
{
if (!r->handler || strcmp(r->handler, "helloworld"))
return DECLINED;
if (r->method_number != M_GET)
return HTTP_METHOD_NOT_ALLOWED;
char *args = r->args;
ap_set_content_type(r, "text/html;charset=ascii");
ap_rputs("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\">\n", r);
//ap_rputs("<meta http-equiv=\"Content-Type\" content=\"text/html; \
// charset=utf-8\">", r);
ap_rputs("<html><body>", r);
if(args != NULL) {
connect_server(r, args);
}
ap_rputs("</body></html>", r);
return OK;
}
static void register_hooks(apr_pool_t* pool)
{
ap_hook_handler(helloworld_handler, NULL, NULL, APR_HOOK_MIDDLE);
}
module AP_MODULE_DECLARE_DATA helloworld_module = {
STANDARD20_MODULE_STUFF,
NULL,
NULL,
NULL,
NULL,
NULL,
register_hooks
};
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