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- /*
- * $Id: getrpcent.c,v 4.2 1994/09/29 23:48:50 jraja Exp $
- *
- * Copyright © 1994 AmiTCP/IP Group,
- * Network Solutions Development Inc.
- * All rights reserved.
- */
-
- /* @(#)getrpcent.c 2.2 88/07/29 4.0 RPCSRC */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)getrpcent.c 1.9 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * Copyright (c) 1985 by Sun Microsystems, Inc.
- */
-
- #include <sys/param.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <sys/types.h>
- #include <rpc/rpc.h>
- #include <netdb.h>
- #include <sys/socket.h>
-
- /*
- * Internet version.
- */
- struct rpcdata {
- #ifdef USE_DOSIO /* AMIGA specific */
- BPTR rpcf;
- #else
- FILE *rpcf;
- #endif
- #ifndef AMIGA
- char *current;
- int currentlen;
- #endif
- int stayopen;
- #define MAXALIASES 35
- char *rpc_aliases[MAXALIASES];
- struct rpcent rpc;
- char line[BUFSIZ+1];
- char *domain;
- } *rpcdata;
-
- static struct rpcdata *_rpcdata(void);
-
- /*
- * The ent-functions have been made static, since the database
- * implementation should be hidden from the applications (J.R.)
- */
- static void setrpcent(int f);
- static void endrpcent(void);
- static struct rpcent * getrpcent(void);
- static struct rpcent * interpret(char *val, size_t len);
-
- #ifndef AMIGA
- static char *index();
- #endif
-
- #if defined(AMITCP)
- static char RPCDB[] = "AmiTCP:db/rpc";
- #else
- static char RPCDB[] = "/etc/rpc";
- #endif
-
- static struct rpcdata *
- _rpcdata(void)
- {
- register struct rpcdata *d = rpcdata;
-
- if (d == 0) {
- d = (struct rpcdata *)mem_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;
-
- 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);
- }
-
- static void
- setrpcent(int f)
- {
- register struct rpcdata *d = _rpcdata();
-
- if (d == 0)
- return;
- if (d->rpcf == NULL)
- #ifdef USE_DOSIO
- d->rpcf = Open((STRPTR)RPCDB, MODE_OLDFILE);
- #else
- d->rpcf = fopen(RPCDB, "r");
- #endif
- else
- rewind(d->rpcf);
- #ifndef AMIGA
- if (d->current)
- mem_free(d->current, d->currentlen);
- d->current = NULL;
- #endif
- d->stayopen |= f;
- }
-
- static void
- endrpcent(void)
- {
- register struct rpcdata *d = _rpcdata();
-
- if (d == 0)
- return;
- #ifndef AMIGA
- if (d->current && !d->stayopen) {
- mem_free(d->current, d->currentlen);
- d->current = NULL;
- }
- #endif
- if (d->rpcf && !d->stayopen) {
- fclose(d->rpcf);
- d->rpcf = NULL;
- }
- }
-
- static struct rpcent *
- getrpcent(void)
- {
- register struct rpcdata *d = _rpcdata();
-
- if (d == 0)
- return(NULL);
- if (d->rpcf == NULL &&
- #ifdef USE_DOSIO
- (d->rpcf = Open((STRPTR)RPCDB, MODE_OLDFILE))
- #else
- (d->rpcf = fopen(RPCDB, "r"))
- #endif
- == NULL)
- return (NULL);
- if (fgets(d->line, BUFSIZ, d->rpcf) == NULL)
- return (NULL);
- return interpret(d->line, strlen(d->line));
- }
-
- static struct rpcent *
- interpret(char *val, size_t len)
- {
- register struct rpcdata *d = _rpcdata();
- char *p;
- register char *cp, **q;
-
- if (d == 0)
- return NULL;
- 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);
- }
-