/* proc.c -- Server process registry
*
* Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $Id: proc.c,v 1.27 2010/01/06 17:01:38 murch Exp $
*/
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <syslog.h>
#include <string.h>
#include "exitcodes.h"
#include "global.h"
#include "proc.h"
#include "xmalloc.h"
#define FNAME_PROCDIR "/proc/"
static char *procfname = 0;
static FILE *procfile = 0;
int proc_register(const char *progname, const char *clienthost,
const char *userid, const char *mailbox)
{
unsigned pid;
int pos;
if (!procfname) {
pid = getpid();
procfname = xmalloc(strlen(config_dir)+sizeof(FNAME_PROCDIR)+10);
sprintf(procfname, "%s%s%u", config_dir, FNAME_PROCDIR, pid);
procfile = fopen(procfname, "w+");
if (!procfile) {
syslog(LOG_ERR, "IOERROR: creating %s: %m", procfname);
fatal("can't write proc file", EC_IOERR);
}
}
rewind(procfile);
fprintf(procfile, "%s", clienthost);
if (userid) {
fprintf(procfile, "\t%s", userid);
if (mailbox) {
fprintf(procfile, "\t%s", mailbox);
}
}
putc('\n', procfile);
fflush(procfile);
pos = ftell(procfile);
if (pos < 0 || ftruncate(fileno(procfile), pos)) {
syslog(LOG_ERR, "IOERROR: creating %s: %m", procfname);
fatal("can't write proc file", EC_IOERR);
}
setproctitle("%s: %s %s %s", progname, clienthost,
userid ? userid : "",
mailbox ? mailbox : "");
return 0;
}
void proc_cleanup(void)
{
if (procfname) {
fclose(procfile);
unlink(procfname);
free(procfname);
procfname = NULL;
}
}