int init_resolver(int op)
{
int ret = 0;
if (op & RES_INITLIST)
{
bzero((char *)&reinfo, sizeof(reinfo));
first = last = NULL;
}
if (op & RES_CALLINIT)
{
ret = ircd_res_init();
if (!ircd_res.nscount)
{
ircd_res.nscount = 1;
Debug((DEBUG_DNS, "Setting nameserver to be %s",
NAME_SERVER));
#ifdef INET6
/* still IPv4 */
ircd_res.nsaddr_list[0].sin_addr.s_addr =
inet_pton(AF_INET, NAME_SERVER,
&ircd_res.nsaddr_list[0].sin_addr.s_addr);
#else
ircd_res.nsaddr_list[0].sin_addr.s_addr =
inet_addr(NAME_SERVER);
#endif
}
}
if (op & RES_INITSOCK)
{
int on = 0;
#ifdef INET6
/* still IPv4 */
ret = resfd = socket(AF_INET, SOCK_DGRAM, 0);
#else
ret = resfd = socket(AF_INET, SOCK_DGRAM, 0);
#endif
(void)setsockopt(ret, SOL_SOCKET, SO_BROADCAST, &on, on);
}
#ifdef DEBUGMODE
if (op & RES_INITDEBG)
ircd_res.options |= RES_DEBUG;
#endif
if (op & RES_INITCACH)
{
bzero((char *)&cainfo, sizeof(cainfo));
bzero((char *)hashtable, sizeof(hashtable));
}
if (op == 0)
ret = resfd;
return ret;
}
int main(int argc, char *argv[])
{
uid_t uid, euid;
sbrk0 = (char *)sbrk((size_t)0);
uid = getuid();
euid = geteuid();
#ifdef CHROOTDIR
ircd_res_init();
if (chdir(ROOT_PATH)!=0)
{
perror("chdir");
(void)fprintf(stderr,"%s: Cannot chdir: %s.\n", IRCD_PATH,
ROOT_PATH);
exit(5);
}
if (chroot(ROOT_PATH)!=0)
{
perror("chroot");
(void)fprintf(stderr,"%s: Cannot chroot: %s.\n", IRCD_PATH,
ROOT_PATH);
exit(5);
}
#endif /*CHROOTDIR*/
#ifdef ZIP_LINKS
if (zlib_version[0] == '0')
{
fprintf(stderr, "zlib version 1.0 or higher required\n");
exit(1);
}
if (zlib_version[0] != ZLIB_VERSION[0])
{
fprintf(stderr, "incompatible zlib version\n");
exit(1);
}
if (strcmp(zlib_version, ZLIB_VERSION) != 0)
{
fprintf(stderr, "warning: different zlib version\n");
}
#endif
myargv = argv;
(void)umask(077); /* better safe than sorry --SRB */
bzero((char *)&me, sizeof(me));
make_server(&me);
register_server(&me);
version = make_version(); /* Generate readable version string */
/*
** All command line parameters have the syntax "-fstring"
** or "-f string" (e.g. the space is optional). String may
** be empty. Flag characters cannot be concatenated (like
** "-fxyz"), it would conflict with the form "-fstring".
*/
while (--argc > 0 && (*++argv)[0] == '-')
{
char *p = argv[0]+1;
int flag = *p++;
if (flag == '\0' || *p == '\0')
{
if (argc > 1 && argv[1][0] != '-')
{
p = *++argv;
argc -= 1;
}
else
{
p = "";
}
}
switch (flag)
{
case 'a':
bootopt |= BOOT_AUTODIE;
break;
case 'b':
bootopt |= BOOT_BADTUNE;
break;
case 'c':
bootopt |= BOOT_CONSOLE;
break;
case 'q':
bootopt |= BOOT_QUICK;
break;
#ifdef CMDLINE_CONFIG
case 'f':
(void)setuid((uid_t)uid);
configfile = p;
break;
#endif
case 'h':
if (*p == '\0')
bad_command();
strncpyzt(me.serv->namebuf, p, sizeof(me.serv->namebuf));
break;
case 'i':
bootopt |= BOOT_INETD|BOOT_AUTODIE;
break;
case 'p':
if (!strcmp(p, "strict"))
bootopt |= BOOT_PROT|BOOT_STRICTPROT;
else if (!strcmp(p, "on"))
bootopt |= BOOT_PROT;
else if (!strcmp(p, "off"))
bootopt &= ~(BOOT_PROT|BOOT_STRICTPROT);
else if (!strcmp(p, "standalone"))
bootopt |= BOOT_STANDALONE;
else
bad_command();
break;
case 's':
bootopt |= BOOT_NOIAUTH;
break;
case 't':
#ifdef DEBUGMODE
(void)setuid((uid_t)uid);
#endif
bootopt |= BOOT_TTY;
break;
case 'T':
tunefile = p;
break;
case 'v':
(void)printf("ircd %s %s\n\tzlib %s\n\tircd.conf delimiter %c\n\t%s #%s\n",
version, serveropts,
#ifndef ZIP_LINKS
"not used",
#else
zlib_version,
#endif
IRCDCONF_DELIMITER,
creation, generation);
exit(0);
case 'x':
#ifdef DEBUGMODE
(void)setuid((uid_t)uid);
debuglevel = atoi(p);
debugmode = *p ? p : "0";
bootopt |= BOOT_DEBUG;
break;
#else
(void)fprintf(stderr,
"%s: DEBUGMODE must be defined for -x y\n",
myargv[0]);
exit(0);
#endif
default:
bad_command();
}
}
if (strlen(tunefile) > 1023 || strlen(mybasename(tunefile)) > 42)
{
fprintf(stderr, "Too long tune filename\n");
exit(-1);
}
if (argc > 0)
bad_command(); /* This exits out */
#ifndef IRC_UID
if ((uid != euid) && !euid)
{
(void)fprintf(stderr,
"ERROR: do not run ircd setuid root. Make it setuid a\
normal user.\n");
exit(-1);
}
int init_resolver(int op)
{
int ret = 0;
#ifdef LRAND48
srand48(time(NULL));
#endif
if (op & RES_INITLIST)
{
bzero((char *)&reinfo, sizeof(reinfo));
first = last = NULL;
}
if (op & RES_CALLINIT)
{
ret = ircd_res_init();
if (!ircd_res.nscount)
{
ircd_res.nscount = 1;
#ifdef INET6
if (!inetpton(AF_INET6, "::1",
&ircd_res.nsaddr_list[0].sin6_addr.s6_addr))
{
bcopy(minus_one,
ircd_res.nsaddr_list[0].sin6_addr.s6_addr,
IN6ADDRSZ);
}
#else
ircd_res.nsaddr_list[0].sin_addr.s_addr =
inetaddr("127.0.0.1");
#endif
}
}
if (op & RES_INITSOCK)
{
int on = 0;
ret = resfd = socket(AFINET, SOCK_DGRAM, 0);
(void) SETSOCKOPT(ret, SOL_SOCKET, SO_BROADCAST, &on, on);
/* The following frame is a hack to allow resolving
* in FreeBSD jail(). As it is harmless elsewhere, it is
* not #ifdef-ed.
* Note that currently IPv6 within jail() is not
* supported by the FreeBSD.
*/
{
struct SOCKADDR_IN res_addr;
memset(&res_addr, 0, sizeof(res_addr));
res_addr.SIN_FAMILY = AFINET;
#ifdef INET6
res_addr.sin6_addr = in6addr_any;
#else
res_addr.sin_addr.s_addr = htonl(INADDR_ANY);
#endif
bind(resfd, (SAP) &res_addr, sizeof(res_addr));
}
}
#ifdef DEBUG
if (op & RES_INITDEBG);
ircd_res.options |= RES_DEBUG;
#endif
if (op & RES_INITCACH)
{
bzero((char *)&cainfo, sizeof(cainfo));
bzero((char *)hashtable, sizeof(hashtable));
}
if (op == 0)
ret = resfd;
return ret;
}