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import of dnsmasq-2.20.tar.gz

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This commit is contained in:
Simon Kelley
2005-01-23 12:06:08 +00:00
parent bb01cb9604
commit f6b7dc47c7
19 changed files with 906 additions and 438 deletions
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162
src/option.c
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@@ -1,4 +1,4 @@
/* dnsmasq is Copyright (c) 2000 - 2004 Simon Kelley
/* dnsmasq is Copyright (c) 2000 - 2005 Simon Kelley
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -21,7 +21,7 @@ struct myoption {
int val;
};
#define OPTSTRING "ZDNLERKzowefnbvhdkqr:m:p:c:l:s:i:t:u:g:a:x:S:C:A:T:H:Q:I:B:F:G:O:M:X:V:U:j:P:J:"
#define OPTSTRING "yZDNLERKzowefnbvhdkqr:m:p:c:l:s:i:t:u:g:a:x:S:C:A:T:H:Q:I:B:F:G:O:M:X:V:U:j:P:J:W:"
static struct myoption opts[] = {
{"version", 0, 0, 'v'},
@@ -76,6 +76,8 @@ static struct myoption opts[] = {
{"edns-packet-max", 1, 0, 'P'},
{"keep-in-foreground", 0, 0, 'k'},
{"dhcp-authoritative", 0, 0, 'K'},
{"srv-host", 1, 0, 'W'},
{"localise-queries", 0, 0, 'y'},
{0, 0, 0, 0}
};
@@ -102,6 +104,7 @@ static struct optflags optmap[] = {
{ 'D', OPT_NODOTS_LOCAL },
{ 'z', OPT_NOWILD },
{ 'Z', OPT_ETHERS },
{ 'y', OPT_LOCALISE },
{ 'v', 0},
{ 'w', 0},
{ 0, 0 }
@@ -137,7 +140,7 @@ static char *usage =
"-K, --dhcp-authoritative Assume we are the only DHCP server on the local network.\n"
"-l, --dhcp-leasefile=path Specify where to store DHCP leases (defaults to " LEASEFILE ").\n"
"-L, --localmx Return MX records for local hosts.\n"
"-m, --mx-host=host_name Specify the MX name to reply to.\n"
"-m, --mx-host=host_name,target,pref Specify an MX record.\n"
"-M, --dhcp-boot=<bootp opts> Specify BOOTP options to DHCP server.\n"
"-n, --no-poll Do NOT poll " RESOLVFILE " file, reload only on SIGHUP.\n"
"-N, --no-negcache Do NOT cache failed search results.\n"
@@ -152,15 +155,17 @@ static char *usage =
"-S, --server=/domain/ipaddr Specify address(es) of upstream servers with optional domains.\n"
" --local=/domain/ Never forward queries to specified domains.\n"
"-s, --domain=domain Specify the domain to be assigned in DHCP leases.\n"
"-t, --mx-target=host_name Specify the host in an MX reply.\n"
"-t, --mx-target=host_name Specify default target in an MX record.\n"
"-T, --local-ttl=time Specify time-to-live in seconds for replies from /etc/hosts.\n"
"-u, --user=username Change to this user after startup. (defaults to " CHUSER ").\n"
"-U, --dhcp-vendorclass=<id>,<class> Map DHCP vendor class to option set.\n"
"-v, --version Display dnsmasq version and copyright information.\n"
"-V, --alias=addr,addr,mask Translate IPv4 addresses from upstream servers.\n"
"-W, --srv-host=name,port,pri,weight Specify a SRV record.\n"
"-w, --help Display this message.\n"
"-x, --pid-file=path Specify path of PID file. (defaults to " RUNFILE ").\n"
"-X, --dhcp-lease-max=number Specify maximum number of DHCP leases (defaults to %d).\n"
"-y, --localise-queries Answer DNS queries based on the interface a query was sent to."
"-z, --bind-interfaces Bind only to interfaces in use.\n"
"-Z, --read-ethers Read DHCP static host information from " ETHERSFILE ".\n"
"\n";
@@ -372,24 +377,41 @@ struct daemon *read_opts (int argc, char **argv)
case 'm':
{
int pref = 1;
struct mx_record *new;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
{
char *prefstr;
*(comma++) = 0;
if ((prefstr=strchr(comma, ',')))
{
*(prefstr++) = 0;
if (!atoi_check(prefstr, &pref))
{
option = '?';
problem = "bad MX preference";
break;
}
}
}
if (!canonicalise(optarg) || (comma && !canonicalise(comma)))
{
option = '?';
problem = "bad MX name";
break;
}
else
{
struct mx_record *new = safe_malloc(sizeof(struct mx_record));
new->next = daemon->mxnames;
daemon->mxnames = new;
new->mxname = safe_string_alloc(optarg);
new->mxtarget = safe_string_alloc(comma); /* may be NULL */
}
new = safe_malloc(sizeof(struct mx_record));
new->next = daemon->mxnames;
daemon->mxnames = new;
new->mxname = safe_string_alloc(optarg);
new->mxtarget = safe_string_alloc(comma); /* may be NULL */
new->preference = pref;
break;
}
case 't':
if (!canonicalise(optarg))
{
@@ -747,7 +769,7 @@ struct daemon *read_opts (int argc, char **argv)
new->broadcast.s_addr = 0;
new->router.s_addr = 0;
new->netid.net = NULL;
new->static_only = 0;
new->static_only = new->filter_netid = 0;
problem = "bad dhcp-range";
@@ -758,7 +780,14 @@ struct daemon *read_opts (int argc, char **argv)
if (*cp != ',' && (comma = strchr(optarg, ',')))
{
*comma = 0;
new->netid.net = safe_string_alloc(optarg);
if (strstr(optarg, "net:") == optarg)
{
new->netid.net = safe_string_alloc(optarg+4);
new->netid.next = NULL;
new->filter_netid = 1;
}
else
new->netid.net = safe_string_alloc(optarg);
a[0] = comma + 1;
}
else
@@ -1363,6 +1392,84 @@ struct daemon *read_opts (int argc, char **argv)
break;
}
case 'W':
{
int port = 1, priority = 0, weight = 0;
char *name, *target = NULL;
struct srv_record *new;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
if (!canonicalise(optarg))
{
option = '?';
problem = "bad SRV record";
break;
}
name = safe_string_alloc(optarg);
if (comma)
{
optarg = comma;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
if (!canonicalise(optarg))
{
option = '?';
problem = "bad SRV target";
break;
}
target = safe_string_alloc(optarg);
if (comma)
{
optarg = comma;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
if (!atoi_check(optarg, &port))
{
option = '?';
problem = "invalid port number";
break;
}
if (comma)
{
optarg = comma;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
if (!atoi_check(optarg, &priority))
{
option = '?';
problem = "invalid priority";
break;
}
if (comma)
{
optarg = comma;
if ((comma = strchr(optarg, ',')))
*(comma++) = 0;
if (!atoi_check(optarg, &weight))
{
option = '?';
problem = "invalid weight";
break;
}
}
}
}
}
new = safe_malloc(sizeof(struct srv_record));
new->next = daemon->srvnames;
daemon->srvnames = new;
new->srvname = name;
new->srvtarget = target;
new->srvport = port;
new->priority = priority;
new->weight = weight;
break;
}
}
}
@@ -1411,24 +1518,39 @@ struct daemon *read_opts (int argc, char **argv)
#endif /* IPv6 */
}
/* only one of these need be specified: the other defaults to the
host-name */
/* only one of these need be specified: the other defaults to the host-name */
if ((daemon->options & OPT_LOCALMX) || daemon->mxnames || daemon->mxtarget)
{
if (gethostname(buff, MAXDNAME) == -1)
die("cannot get host-name: %s", NULL);
if (!daemon->mxnames)
{
daemon->mxnames = safe_malloc(sizeof(struct mx_record));
daemon->mxnames->next = NULL;
daemon->mxnames->mxtarget = NULL;
daemon->mxnames->mxname = safe_string_alloc(buff);
}
}
if (!daemon->mxtarget)
daemon->mxtarget = safe_string_alloc(buff);
}
if (daemon->domain_suffix)
{
/* add domain for any srv record without one. */
struct srv_record *srv;
for (srv = daemon->srvnames; srv; srv = srv->next)
if (strchr(srv->srvname, '.') && strchr(srv->srvname, '.') == strrchr(srv->srvname, '.'))
{
strcpy(buff, srv->srvname);
strcat(buff, ".");
strcat(buff, daemon->domain_suffix);
free(srv->srvname);
srv->srvname = safe_string_alloc(buff);
}
}
if (daemon->options & OPT_NO_RESOLV)
daemon->resolv_files = 0;