imapfilter/imapfilter/connect.c

#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>


#include "config.h"
#include "imapfilter.h"


int sock;


/*
 * Connect to mail server.
 */
int init_connection(char *serv, unsigned int port)
{
    struct sockaddr_in sa;
    struct hostent *he;

    memset((char *) &sa, 0, sizeof(struct sockaddr_in));

    sock = socket(PF_INET, SOCK_STREAM, 0);
    if (sock < 0) {
        error("imapfilter: create socket; %s\n", strerror(errno));
        return ERROR_NETWORK;
    }

    if (!(he = gethostbyname(serv))) {
        error("imapfilter: get network host entry; %s\n", strerror(errno));
        close_connection();
        return ERROR_NETWORK;
    }

    sa.sin_family = AF_INET;
    sa.sin_port = htons(port);
    sa.sin_addr = *(struct in_addr *) he->h_addr;

    if (connect(sock, (struct sockaddr *) &sa, sizeof(struct sockaddr))) {
        error("imapfilter: initiating connection; %s\n", strerror(errno));
        close_connection();
        return ERROR_NETWORK;
    }
    
    strncpy(serv, he->h_name, SERVER_LEN - 1);

    info("Connected to %s.\n", serv);
    log_info(1, serv);

    return 0;
}


/*
 * Disconnect from mail server.
 */
int close_connection(void)
{
    if (close(sock)) {
        error("imapfilter: closing socket; %s\n", strerror(errno));
        return ERROR_NETWORK;
    } else
        return 0;
}
1	lefcha	1.11	#include <string.h>
2	lefcha	1.1	#include <errno.h>
3			#include <unistd.h>
4			#include <sys/types.h>
5			#include <sys/socket.h>
6	lefcha	1.11	#include <netinet/in.h>
7	lefcha	1.1	#include <netdb.h>
8	lefcha	1.11
9	lefcha	1.1
10			#include "config.h"
11			#include "imapfilter.h"
12
13
14			int sock;
15
16
17			/*
18	lefcha	1.11	* Connect to mail server.
19	lefcha	1.1	*/
20	lefcha	1.11	int init_connection(char *serv, unsigned int port)
21	lefcha	1.1	{
22	lefcha	1.11	struct sockaddr_in sa;
23			struct hostent *he;
24	lefcha	1.1
25	lefcha	1.11	memset((char *) &sa, 0, sizeof(struct sockaddr_in));
26	lefcha	1.1
27			sock = socket(PF_INET, SOCK_STREAM, 0);
28			if (sock < 0) {
29			error("imapfilter: create socket; %s\n", strerror(errno));
30	lefcha	1.12	return ERROR_NETWORK;
31	lefcha	1.1	}
32
33	lefcha	1.11	if (!(he = gethostbyname(serv))) {
34	lefcha	1.1	error("imapfilter: get network host entry; %s\n", strerror(errno));
35			close_connection();
36	lefcha	1.12	return ERROR_NETWORK;
37	lefcha	1.1	}
38
39	lefcha	1.11	sa.sin_family = AF_INET;
40			sa.sin_port = htons(port);
41			sa.sin_addr = (struct in_addr ) he->h_addr;
42	lefcha	1.1
43	lefcha	1.11	if (connect(sock, (struct sockaddr *) &sa, sizeof(struct sockaddr))) {
44	lefcha	1.1	error("imapfilter: initiating connection; %s\n", strerror(errno));
45			close_connection();
46	lefcha	1.12	return ERROR_NETWORK;
47	lefcha	1.1	}
48	lefcha	1.12
49			strncpy(serv, he->h_name, SERVER_LEN - 1);
50	lefcha	1.1
51	lefcha	1.12	info("Connected to %s.\n", serv);
52			log_info(1, serv);
53	lefcha	1.1
54	lefcha	1.6	return 0;
55	lefcha	1.1	}
56
57
58			/*
59	lefcha	1.11	* Disconnect from mail server.
60	lefcha	1.1	*/
61			int close_connection(void)
62			{
63			if (close(sock)) {
64			error("imapfilter: closing socket; %s\n", strerror(errno));
65	lefcha	1.12	return ERROR_NETWORK;
66	lefcha	1.6	} else
67			return 0;
68	lefcha	1.1	}