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CU Amiga Super CD-ROM 1
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CU Amiga Magazine CD-ROM Special Edition (1995)(EMAP Images)(GB)[Issue 1995-11].iso
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ATCP_sdk_40_gc.lha
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AmiTCP-4.0-gcc
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getrpcent.c
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C/C++ Source or Header
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1995-03-17
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4KB
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243 lines
/*
* $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);
static char *index();
#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);
}