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/* @(#)getrpcent.c 2.2 88/07/29 4.0 RPCSRC */
#define __FORCE_GLIBC
#include <features.h>
/*
* 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 <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <rpc/rpc.h>
#include <netdb.h>
#include <sys/socket.h>
#include <arpa/inet.h>
/*
* Internet version.
*/
static 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;
static char RPCDB[] = "/etc/rpc";
static struct rpcdata *_rpcdata(void)
{
register struct rpcdata *d = rpcdata;
if (d == NULL) {
d = (struct rpcdata *) calloc(1, sizeof(struct rpcdata));
rpcdata = d;
}
return d;
}
struct rpcent *getrpcbynumber(register int number)
{
register struct rpcdata *d = _rpcdata();
register struct rpcent *rpc;
if (d == NULL)
return NULL;
setrpcent(0);
while ((rpc = getrpcent())) {
if (rpc->r_number == number)
break;
}
endrpcent();
return rpc;
}
struct rpcent *getrpcbyname(const 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;
}
void setrpcent(int f)
{
register struct rpcdata *d = _rpcdata();
if (d == NULL)
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;
}
void endrpcent()
{
register struct rpcdata *d = _rpcdata();
if (d == NULL)
return;
if (d->stayopen)
return;
if (d->current) {
free(d->current);
d->current = NULL;
}
if (d->rpcf) {
fclose(d->rpcf);
d->rpcf = NULL;
}
}
static struct rpcent *interpret(struct rpcdata *);
static struct rpcent *__get_next_rpcent(struct rpcdata *d)
{
if (fgets(d->line, BUFSIZ, d->rpcf) == NULL)
return NULL;
return interpret(d);
}
struct rpcent *getrpcent()
{
register struct rpcdata *d = _rpcdata();
if (d == NULL)
return NULL;
if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL)
return NULL;
return __get_next_rpcent(d);
}
#ifdef __linux__
static char *firstwhite(char *s)
{
char *s1, *s2;
s1 = index(s, ' ');
s2 = index(s, '\t');
if (s1) {
if (s2)
return (s1 < s2) ? s1 : s2;
else
return s1;
} else
return s2;
}
#endif
static struct rpcent *interpret(register struct rpcdata *d)
{
char *p;
register char *cp, **q;
p = d->line;
d->line[strlen(p)-1] = '\n';
if (*p == '#')
return __get_next_rpcent(d);
cp = index(p, '#');
if (cp == NULL) {
cp = index(p, '\n');
if (cp == NULL)
return __get_next_rpcent(d);
}
*cp = '\0';
#ifdef __linux__
if ((cp = firstwhite(p)))
*cp++ = 0;
else
return __get_next_rpcent(d);
#else
cp = index(p, ' ');
if (cp == NULL) {
cp = index(p, '\t');
if (cp == NULL)
return __get_next_rpcent(d);
}
*cp++ = '\0';
#endif
/* 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;
#ifdef __linux__
if ((cp = firstwhite(cp)))
*cp++ = '\0';
#else
cp = index(p, ' ');
if (cp != NULL)
*cp++ = '\0';
else {
cp = index(p, '\t');
if (cp != NULL)
*cp++ = '\0';
}
#endif
while (cp && *cp) {
if (*cp == ' ' || *cp == '\t') {
cp++;
continue;
}
if (q < &(d->rpc_aliases[MAXALIASES - 1]))
*q++ = cp;
#ifdef __linux__
if ((cp = firstwhite(cp)))
*cp++ = '\0';
#else
cp = index(p, ' ');
if (cp != NULL)
*cp++ = '\0';
else {
cp = index(p, '\t');
if (cp != NULL)
*cp++ = '\0';
}
#endif
}
*q = NULL;
return &d->rpc;
}
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