diff options
Diffstat (limited to 'lib/bind/irs/getservent.c')
| -rw-r--r-- | lib/bind/irs/getservent.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/lib/bind/irs/getservent.c b/lib/bind/irs/getservent.c new file mode 100644 index 0000000..92ed18b --- /dev/null +++ b/lib/bind/irs/getservent.c @@ -0,0 +1,179 @@ +/* + * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 1996,1999 by Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR + * ANY SPECIAL, DIRECT, 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. + */ + +#if !defined(LINT) && !defined(CODECENTER) +static const char rcsid[] = "$Id: getservent.c,v 1.3.18.1 2005/04/27 05:00:59 sra Exp $"; +#endif + +/* Imports */ + +#include "port_before.h" + +#if !defined(__BIND_NOSTATIC) + +#include <sys/types.h> + +#include <netinet/in.h> +#include <arpa/nameser.h> + +#include <errno.h> +#include <resolv.h> +#include <stdio.h> +#include <string.h> + +#include <irs.h> + +#include "port_after.h" + +#include "irs_data.h" + +/* Forward */ + +static struct net_data *init(void); + +/* Public */ + +struct servent * +getservent(void) { + struct net_data *net_data = init(); + + return (getservent_p(net_data)); +} + +struct servent * +getservbyname(const char *name, const char *proto) { + struct net_data *net_data = init(); + + return (getservbyname_p(name, proto, net_data)); +} + +struct servent * +getservbyport(int port, const char *proto) { + struct net_data *net_data = init(); + + return (getservbyport_p(port, proto, net_data)); +} + +void +setservent(int stayopen) { + struct net_data *net_data = init(); + + setservent_p(stayopen, net_data); +} + +void +endservent() { + struct net_data *net_data = init(); + + endservent_p(net_data); +} + +/* Shared private. */ + +struct servent * +getservent_p(struct net_data *net_data) { + struct irs_sv *sv; + + if (!net_data || !(sv = net_data->sv)) + return (NULL); + net_data->sv_last = (*sv->next)(sv); + return (net_data->sv_last); +} + +struct servent * +getservbyname_p(const char *name, const char *proto, + struct net_data *net_data) { + struct irs_sv *sv; + char **sap; + + if (!net_data || !(sv = net_data->sv)) + return (NULL); + if (net_data->sv_stayopen && net_data->sv_last) + if (!proto || !strcmp(net_data->sv_last->s_proto, proto)) { + if (!strcmp(net_data->sv_last->s_name, name)) + return (net_data->sv_last); + for (sap = net_data->sv_last->s_aliases; + sap && *sap; sap++) + if (!strcmp(name, *sap)) + return (net_data->sv_last); + } + net_data->sv_last = (*sv->byname)(sv, name, proto); + if (!net_data->sv_stayopen) + endservent(); + return (net_data->sv_last); +} + +struct servent * +getservbyport_p(int port, const char *proto, struct net_data *net_data) { + struct irs_sv *sv; + + if (!net_data || !(sv = net_data->sv)) + return (NULL); + if (net_data->sv_stayopen && net_data->sv_last) + if (port == net_data->sv_last->s_port && + ( !proto || + !strcmp(net_data->sv_last->s_proto, proto))) + return (net_data->sv_last); + net_data->sv_last = (*sv->byport)(sv, port, proto); + return (net_data->sv_last); +} + +void +setservent_p(int stayopen, struct net_data *net_data) { + struct irs_sv *sv; + + if (!net_data || !(sv = net_data->sv)) + return; + (*sv->rewind)(sv); + net_data->sv_stayopen = (stayopen != 0); + if (stayopen == 0) + net_data_minimize(net_data); +} + +void +endservent_p(struct net_data *net_data) { + struct irs_sv *sv; + + if ((net_data != NULL) && ((sv = net_data->sv) != NULL)) + (*sv->minimize)(sv); +} + +/* Private */ + +static struct net_data * +init() { + struct net_data *net_data; + + if (!(net_data = net_data_init(NULL))) + goto error; + if (!net_data->sv) { + net_data->sv = (*net_data->irs->sv_map)(net_data->irs); + + if (!net_data->sv || !net_data->res) { + error: + errno = EIO; + return (NULL); + } + (*net_data->sv->res_set)(net_data->sv, net_data->res, NULL); + } + + return (net_data); +} + +#endif /*__BIND_NOSTATIC*/ + +/*! \file */ |
