/* @(#)getrpcent.c 1.4 87/11/13 3.9 RPCSRC */ /* $Disclaimer: * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice, this permission notice, and the following * disclaimer appear in supporting documentation, and that the names of * IBM, Carnegie Mellon University, and other copyright holders, not be * used in advertising or publicity pertaining to distribution of the software * without specific, written prior permission. * * IBM, CARNEGIE MELLON UNIVERSITY, AND THE OTHER COPYRIGHT HOLDERS * DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT * SHALL IBM, CARNEGIE MELLON UNIVERSITY, OR ANY OTHER COPYRIGHT HOLDER * 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. * $ */ #ifndef NORCSID #define NORCSID static char rcsid[]="$Header: /afs/cs.cmu.edu/project/atk-dist/auis-6.3/contrib/mit/fxlib/rpc3.9/rpc/RCS/getrpcent.c,v 1.3 1992/12/15 21:53:58 rr2b R6tape $"; #endif #if !defined(lint) && defined(SCCSIDS) static char sccsid[] = "@(#)getrpcent.c 1.9 87/08/11 Copyr 1984 Sun Micro"; #endif /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user. * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ /* * Copyright (c) 1985 by Sun Microsystems, Inc. */ #include #include #include #include #include /* * Internet version. */ struct rpcdata { FILE *rpcf; char *current; int currentlen; int stayopen; #define MAXALIASES 35 char *rpc_aliases[MAXALIASES]; struct rpcent rpc; char line[BUFSIZ+1]; char *domain; } *rpcdata, *_rpcdata(); static struct rpcent *interpret(); struct hostent *gethostent(); char *inet_ntoa(); /*static*/ char *index(); static char RPCDB[] = "/etc/rpc"; static struct rpcdata * _rpcdata() { register struct rpcdata *d = rpcdata; if (d == 0) { d = (struct rpcdata *)calloc(1, sizeof (struct rpcdata)); rpcdata = d; } return (d); } struct rpcent * getrpcbynumber(number) register int number; { register struct rpcdata *d = _rpcdata(); register struct rpcent *p; int reason; char adrstr[10], *val = NULL; int vallen; if (d == 0) return (0); setrpcent(0); while (p = getrpcent()) { if (p->r_number == number) break; } endrpcent(); return (p); } struct rpcent * getrpcbyname(name) char *name; { struct rpcent *rpc; char **rp; setrpcent(0); while(rpc = getrpcent()) { if (strcmp(rpc->r_name, name) == 0) return (rpc); for (rp = rpc->r_aliases; *rp != NULL; rp++) { if (strcmp(*rp, name) == 0) return (rpc); } } endrpcent(); return (NULL); } setrpcent(f) int f; { register struct rpcdata *d = _rpcdata(); if (d == 0) return; if (d->rpcf == NULL) d->rpcf = fopen(RPCDB, "r"); else rewind(d->rpcf); if (d->current) free(d->current); d->current = NULL; d->stayopen |= f; } endrpcent() { register struct rpcdata *d = _rpcdata(); if (d == 0) return; if (d->current && !d->stayopen) { free(d->current); d->current = NULL; } if (d->rpcf && !d->stayopen) { fclose(d->rpcf); d->rpcf = NULL; } } struct rpcent * getrpcent() { struct rpcent *hp; int reason; char *key = NULL, *val = NULL; int keylen, vallen; register struct rpcdata *d = _rpcdata(); if (d == 0) return; if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL) return (NULL); if (fgets(d->line, BUFSIZ, d->rpcf) == NULL) return (NULL); return interpret(d->line, strlen(d->line)); } static struct rpcent * interpret(val, len) { register struct rpcdata *d = _rpcdata(); char *p; register char *cp, **q; if (d == 0) return; strncpy(d->line, val, len); p = d->line; d->line[len] = '\n'; if (*p == '#') return (getrpcent()); cp = index(p, '#'); if (cp == NULL) { cp = index(p, '\n'); if (cp == NULL) return (getrpcent()); } *cp = '\0'; cp = index(p, ' '); if (cp == NULL) { cp = index(p, '\t'); if (cp == NULL) return (getrpcent()); } *cp++ = '\0'; /* THIS STUFF IS INTERNET SPECIFIC */ d->rpc.r_name = d->line; while (*cp == ' ' || *cp == '\t') cp++; d->rpc.r_number = atoi(cp); q = d->rpc.r_aliases = d->rpc_aliases; cp = index(p, ' '); if (cp != NULL) *cp++ = '\0'; else { cp = index(p, '\t'); if (cp != NULL) *cp++ = '\0'; } while (cp && *cp) { if (*cp == ' ' || *cp == '\t') { cp++; continue; } if (q < &(d->rpc_aliases[MAXALIASES - 1])) *q++ = cp; cp = index(p, ' '); if (cp != NULL) *cp++ = '\0'; else { cp = index(p, '\t'); if (cp != NULL) *cp++ = '\0'; } } *q = NULL; return (&d->rpc); }