Update of /cvsroot/serverfilters/serversidefilter/script
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14528/script
Added Files:
checkcreds_imap.c
Log Message:
Initial checkin
--- NEW FILE: checkcreds_imap.c ---
/*
* Credential checking using IMAP
*
* David Phillips <david <at> geektech.com>
*
* Public domain
*
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <netdb.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
// error definitions
#include "filtercmd.h"
char *checkcreds_extra_configvar = "";
static int socket_connect(const char *host, int port)
{
struct in_addr addr;
struct hostent *hent;
struct sockaddr_in saddr;
int s;
int r;
if (inet_aton(host, &addr) == 0)
{
hent = gethostbyname(host);
if (hent == NULL)
return -1;
addr = *((struct in_addr *)hent->h_addr);
}
saddr.sin_family = AF_INET;
saddr.sin_addr = addr;
saddr.sin_port = htons(port);
memset(&saddr.sin_zero, 0, 8);
s = socket(AF_INET, SOCK_STREAM, 0);
if (s == -1)
return -1;
if (connect(s, (struct sockaddr *)&saddr, sizeof(struct sockaddr)) == -1)
{
close(s);
return -1;
}
return s;
}
int checkcredentials(imapserver, imapport, user, passwd, extra)
char *imapserver;
int imapport;
char *user;
char *passwd;
char *extra;
{
char LOGOUT[] = "a2 LOGOUT\r\n";
int s;
char buf[4096];
FILE *fp;
s = socket_connect(imapserver, imapport);
if (s == -1)
return ERR_CANT_READ_IMAP_SERVER;
fp = fdopen(s, "r+");
if (fgets(buf, sizeof(buf), fp) == NULL)
goto error;
fprintf(fp, "a1 LOGIN %s %s\r\n", user, passwd);
if (fgets(buf, sizeof(buf), fp) == NULL)
goto error;
fprintf(fp, "a2 LOGOUT\r\n");
fclose(fp);
#ifdef DEBUG
fprintf(stderr, "IMAP response: %s\n", buf);
#endif
if (strstr(buf, "OK") == NULL)
return ERR_BAD_CREDENTIALS;
return ERR_OK;
error:
fclose(fp);
return ERR_CANT_READ_IMAP_SERVER;
}
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