Ok, using James idea of calling out to ripmime, I altered his code
to spool the mail message to a file so ripmime can invoke --mailbox
on it. Once I got it working, ClamAV started catching viruses again.
This isn't going to be fast, but given the choice between unstable and
slow I'll go with slow at the moment. I really hate waking up in the
morning to find our mail server has been puking on email since 1AM :)
*
** Replacement mbox.c
**
** Based on original code from James Stevens
**
** Instead of trying to pull the message apart
** ourselves let 'ripmime' do it for us.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define BUFSIZE 8192
#define RIPMIME "/usr/local/bin/ripmime"
int cl_mbox(const char *dir, int desc)
{
int ofd;
char buffer[BUFSIZE], tempfile[256];
int ret, stat, len;
/*
** RipMime demands a regular file to work on when working
** on a mailbox so we have to spool "desc" into a file for it.
*/
strcpy(tempfile, "/tmp/mboxXXXXXX");
ofd = mkstemp(tempfile);
if ( ofd < 0 )
return -1;
/*
** Prime the pump and copy "desc" to the temp file
*/
len = read(desc, buffer, BUFSIZ);
while ( len > 0 ) {
write(ofd, buffer, len);
len = read(desc, buffer, BUFSIZ);
}
close(ofd);
ret = fork();
if ( ret == -1 ) {
unlink(tempfile);
return -1;
}
if ( ret == 0 ) {
if ( desc )
dup2(desc, 0);
execlp(RIPMIME, RIPMIME, "-d", dir, "-i", tempfile, "--mailbox", NULL);
exit(-1);
}
waitpid(ret, &stat, 0);
unlink(tempfile);
return 0;
}
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