diff options
Diffstat (limited to 'usr/src/lib/libresolv2/common/irs/getprotoent.c')
| -rw-r--r-- | usr/src/lib/libresolv2/common/irs/getprotoent.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/usr/src/lib/libresolv2/common/irs/getprotoent.c b/usr/src/lib/libresolv2/common/irs/getprotoent.c new file mode 100644 index 0000000000..9a2b7332e3 --- /dev/null +++ b/usr/src/lib/libresolv2/common/irs/getprotoent.c @@ -0,0 +1,197 @@ +/* + * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* + * 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#if !defined(LINT) && !defined(CODECENTER) +static const char rcsid[] = "$Id: getprotoent.c,v 1.16 2001/11/01 07:34:33 marka 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 protoent * +getprotoent() { + struct net_data *net_data = init(); + + return (getprotoent_p(net_data)); +} + +struct protoent * +getprotobyname(const char *name) { + struct net_data *net_data = init(); + + return (getprotobyname_p(name, net_data)); +} + +struct protoent * +getprotobynumber(int proto) { + struct net_data *net_data = init(); + + return (getprotobynumber_p(proto, net_data)); +} + +#ifdef ORIGINAL_ISC_CODE +void +#else +int +#endif +setprotoent(int stayopen) { + struct net_data *net_data = init(); + + setprotoent_p(stayopen, net_data); +#ifdef ORIGINAL_ISC_CODE +#else + return (0); +#endif +} + +#ifdef ORIGINAL_ISC_CODE +void +#else +int +#endif +endprotoent() { + struct net_data *net_data = init(); + + endprotoent_p(net_data); +#ifdef ORIGINAL_ISC_CODE +#else + return (0); +#endif +} + +/* Shared private. */ + +struct protoent * +getprotoent_p(struct net_data *net_data) { + struct irs_pr *pr; + + if (!net_data || !(pr = net_data->pr)) + return (NULL); + net_data->pr_last = (*pr->next)(pr); + return (net_data->pr_last); +} + +struct protoent * +getprotobyname_p(const char *name, struct net_data *net_data) { + struct irs_pr *pr; + char **pap; + + if (!net_data || !(pr = net_data->pr)) + return (NULL); + if (net_data->pr_stayopen && net_data->pr_last) { + if (!strcmp(net_data->pr_last->p_name, name)) + return (net_data->pr_last); + for (pap = net_data->pr_last->p_aliases; pap && *pap; pap++) + if (!strcmp(name, *pap)) + return (net_data->pr_last); + } + net_data->pr_last = (*pr->byname)(pr, name); + if (!net_data->pr_stayopen) + endprotoent(); + return (net_data->pr_last); +} + +struct protoent * +getprotobynumber_p(int proto, struct net_data *net_data) { + struct irs_pr *pr; + + if (!net_data || !(pr = net_data->pr)) + return (NULL); + if (net_data->pr_stayopen && net_data->pr_last) + if (net_data->pr_last->p_proto == proto) + return (net_data->pr_last); + net_data->pr_last = (*pr->bynumber)(pr, proto); + if (!net_data->pr_stayopen) + endprotoent(); + return (net_data->pr_last); +} + +void +setprotoent_p(int stayopen, struct net_data *net_data) { + struct irs_pr *pr; + + if (!net_data || !(pr = net_data->pr)) + return; + (*pr->rewind)(pr); + net_data->pr_stayopen = (stayopen != 0); + if (stayopen == 0) + net_data_minimize(net_data); +} + +void +endprotoent_p(struct net_data *net_data) { + struct irs_pr *pr; + + if ((net_data != NULL) && ((pr = net_data->pr) != NULL)) + (*pr->minimize)(pr); +} + +/* Private */ + +static struct net_data * +init() { + struct net_data *net_data; + + if (!(net_data = net_data_init(NULL))) + goto error; + if (!net_data->pr) { + net_data->pr = (*net_data->irs->pr_map)(net_data->irs); + + if (!net_data->pr || !net_data->res) { + error: + errno = EIO; + return (NULL); + } + (*net_data->pr->res_set)(net_data->pr, net_data->res, NULL); + } + + return (net_data); +} + +#endif /*__BIND_NOSTATIC*/ |