getrpcent.c revision 1.10
1 /* $NetBSD: getrpcent.c,v 1.10 1998/02/12 01:57:36 lukem Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user or with the express written consent of 10 * Sun Microsystems, Inc. 11 * 12 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 13 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 14 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 15 * 16 * Sun RPC is provided with no support and without any obligation on the 17 * part of Sun Microsystems, Inc. to assist in its use, correction, 18 * modification or enhancement. 19 * 20 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 21 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 22 * OR ANY PART THEREOF. 23 * 24 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 25 * or profits or other special, indirect and consequential damages, even if 26 * Sun has been advised of the possibility of such damages. 27 * 28 * Sun Microsystems, Inc. 29 * 2550 Garcia Avenue 30 * Mountain View, California 94043 31 */ 32 33 #include <sys/cdefs.h> 34 #if defined(LIBC_SCCS) && !defined(lint) 35 #if 0 36 static char *sccsid = "@(#)getrpcent.c 1.14 91/03/11 Copyr 1984 Sun Micro"; 37 #else 38 __RCSID("$NetBSD: getrpcent.c,v 1.10 1998/02/12 01:57:36 lukem Exp $"); 39 #endif 40 #endif 41 42 /* 43 * Copyright (c) 1984 by Sun Microsystems, Inc. 44 */ 45 46 #include "namespace.h" 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <sys/types.h> 50 #include <string.h> 51 #include <rpc/rpc.h> 52 #include <netdb.h> 53 #include <arpa/inet.h> 54 55 #ifdef __weak_alias 56 __weak_alias(endrpcent,_endrpcent); 57 __weak_alias(getrpcbyname,_getrpcbyname); 58 __weak_alias(getrpcbynumber,_getrpcbynumber); 59 __weak_alias(getrpcent,_getrpcent); 60 __weak_alias(setrpcent,_setrpcent); 61 #endif 62 63 /* 64 * Internet version. 65 */ 66 struct rpcdata { 67 FILE *rpcf; 68 int stayopen; 69 #define MAXALIASES 35 70 char *rpc_aliases[MAXALIASES]; 71 struct rpcent rpc; 72 char line[BUFSIZ+1]; 73 } *rpcdata; 74 75 static struct rpcent *interpret __P((char *val, int len)); 76 77 static char RPCDB[] = "/etc/rpc"; 78 79 static struct rpcdata *_rpcdata __P((void)); 80 81 static struct rpcdata * 82 _rpcdata() 83 { 84 register struct rpcdata *d = rpcdata; 85 86 if (d == 0) { 87 d = (struct rpcdata *)calloc(1, sizeof (struct rpcdata)); 88 rpcdata = d; 89 } 90 return (d); 91 } 92 93 struct rpcent * 94 getrpcbynumber(number) 95 register int number; 96 { 97 struct rpcent *rpc; 98 99 setrpcent(0); 100 while ((rpc = getrpcent()) != NULL) { 101 if (rpc->r_number == number) 102 break; 103 } 104 endrpcent(); 105 return (rpc); 106 } 107 108 struct rpcent * 109 getrpcbyname(name) 110 char *name; 111 { 112 struct rpcent *rpc; 113 char **rp; 114 115 setrpcent(0); 116 while ((rpc = getrpcent()) != NULL) { 117 if (strcmp(rpc->r_name, name) == 0) 118 break; 119 for (rp = rpc->r_aliases; *rp != NULL; rp++) { 120 if (strcmp(*rp, name) == 0) 121 break; 122 } 123 } 124 endrpcent(); 125 return (rpc); 126 } 127 128 void 129 setrpcent(f) 130 int f; 131 { 132 register struct rpcdata *d = _rpcdata(); 133 134 if (d == 0) 135 return; 136 if (d->rpcf == NULL) 137 d->rpcf = fopen(RPCDB, "r"); 138 else 139 rewind(d->rpcf); 140 d->stayopen |= f; 141 } 142 143 void 144 endrpcent() 145 { 146 register struct rpcdata *d = _rpcdata(); 147 148 if (d == 0) 149 return; 150 if (d->rpcf && !d->stayopen) { 151 fclose(d->rpcf); 152 d->rpcf = NULL; 153 } 154 } 155 156 struct rpcent * 157 getrpcent() 158 { 159 register struct rpcdata *d = _rpcdata(); 160 161 if (d == 0) 162 return(NULL); 163 if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL) 164 return (NULL); 165 if (fgets(d->line, BUFSIZ, d->rpcf) == NULL) 166 return (NULL); 167 return (interpret(d->line, strlen(d->line))); 168 } 169 170 static struct rpcent * 171 interpret(val, len) 172 char *val; 173 int len; 174 { 175 register struct rpcdata *d = _rpcdata(); 176 char *p; 177 register char *cp, **q; 178 179 if (d == 0) 180 return (0); 181 (void) strncpy(d->line, val, len); 182 p = d->line; 183 d->line[len] = '\n'; 184 if (*p == '#') 185 return (getrpcent()); 186 cp = strpbrk(p, "#\n"); 187 if (cp == NULL) 188 return (getrpcent()); 189 *cp = '\0'; 190 cp = strpbrk(p, " \t"); 191 if (cp == NULL) 192 return (getrpcent()); 193 *cp++ = '\0'; 194 /* THIS STUFF IS INTERNET SPECIFIC */ 195 d->rpc.r_name = d->line; 196 while (*cp == ' ' || *cp == '\t') 197 cp++; 198 d->rpc.r_number = atoi(cp); 199 q = d->rpc.r_aliases = d->rpc_aliases; 200 cp = strpbrk(cp, " \t"); 201 if (cp != NULL) 202 *cp++ = '\0'; 203 while (cp && *cp) { 204 if (*cp == ' ' || *cp == '\t') { 205 cp++; 206 continue; 207 } 208 if (q < &(d->rpc_aliases[MAXALIASES - 1])) 209 *q++ = cp; 210 cp = strpbrk(cp, " \t"); 211 if (cp != NULL) 212 *cp++ = '\0'; 213 } 214 *q = NULL; 215 return (&d->rpc); 216 } 217
Indexes created Thu Oct 02 14:10:14 GMT 2025