diff options
Diffstat (limited to 'lib/libc/rpc/getrpcent.c')
-rw-r--r-- | lib/libc/rpc/getrpcent.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/lib/libc/rpc/getrpcent.c b/lib/libc/rpc/getrpcent.c new file mode 100644 index 0000000..e9b919c --- /dev/null +++ b/lib/libc/rpc/getrpcent.c @@ -0,0 +1,299 @@ +/* + * 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 or with the express written consent of + * Sun Microsystems, Inc. + * + * 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 + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)getrpcent.c 1.14 91/03/11 Copyr 1984 Sun Micro";*/ +static char *rcsid = "$Id: getrpcent.c,v 1.2 1995/05/30 05:41:21 rgrimes Exp $"; +#endif + +/* + * Copyright (c) 1984 by Sun Microsystems, Inc. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <string.h> +#include <rpc/rpc.h> +#ifdef YP +#include <rpcsvc/yp_prot.h> +#include <rpcsvc/ypclnt.h> +#endif + +/* + * Internet version. + */ +struct rpcdata { + FILE *rpcf; + int stayopen; +#define MAXALIASES 35 + char *rpc_aliases[MAXALIASES]; + struct rpcent rpc; + char line[BUFSIZ+1]; +#ifdef YP + char *domain; + char *current; + int currentlen; +#endif +} *rpcdata; + +#ifdef YP +static int __yp_nomap = 0; +#endif /* YP */ + +static struct rpcent *interpret(); +struct hostent *gethostent(); +char *inet_ntoa(); + +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; +#ifdef YP + int reason; + char adrstr[16]; +#endif + + if (d == 0) + return (0); +#ifdef YP + if (!__yp_nomap && _yp_check(&d->domain)) { + sprintf(adrstr, "%d", number); + reason = yp_match(d->domain, "rpc.bynumber", adrstr, strlen(adrstr), + &d->current, &d->currentlen); + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + d->current[d->currentlen] = '\0'; + p = interpret(d->current, d->currentlen); + (void) free(d->current); + return p; + } +no_yp: +#endif /* YP */ + 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); +} + +void +setrpcent(f) + int f; +{ + register struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && _yp_check(NULL)) { + if (d->current) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf == NULL) + d->rpcf = fopen(RPCDB, "r"); + else + rewind(d->rpcf); + d->stayopen |= f; +} + +void +endrpcent() +{ + register struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && _yp_check(NULL)) { + if (d->current && !d->stayopen) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf && !d->stayopen) { + fclose(d->rpcf); + d->rpcf = NULL; + } +} + +struct rpcent * +getrpcent() +{ + struct rpcent *hp; + int reason; + register struct rpcdata *d = _rpcdata(); +#ifdef YP + char *val = NULL; + int vallen; +#endif + + if (d == 0) + return(NULL); +#ifdef YP + if (!__yp_nomap && _yp_check(&d->domain)) { + if (d->current == NULL && d->currentlen == 0) { + reason = yp_first(d->domain, "rpc.bynumber", + &d->current, &d->currentlen, + &val, &vallen); + } else { + reason = yp_next(d->domain, "rpc.bynumber", + d->current, d->currentlen, + &d->current, &d->currentlen, + &val, &vallen); + } + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + val[vallen] = '\0'; + hp = interpret(val, vallen); + (void) free(val); + return hp; + } +no_yp: +#endif /* YP */ + 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) + char *val; + int len; +{ + register struct rpcdata *d = _rpcdata(); + char *p; + register char *cp, **q; + + if (d == 0) + return (0); + (void) strncpy(d->line, val, len); + p = d->line; + d->line[len] = '\n'; + if (*p == '#') + return (getrpcent()); + cp = strpbrk(p, "#\n"); + if (cp == NULL) + return (getrpcent()); + *cp = '\0'; + cp = strpbrk(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 = strpbrk(cp, " \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 = strpbrk(cp, " \t"); + if (cp != NULL) + *cp++ = '\0'; + } + *q = NULL; + return (&d->rpc); +} + |